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Update_firmware for Risc_v controllers

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Ivan Olenichev 4 years ago
parent 6364488dc2
commit 2e8b5aa51c
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396
RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_adc.h
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/*!
\file gd32vf103_adc.h
\brief definitions for the ADC
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_ADC_H
#define GD32VF103_ADC_H
#include "gd32vf103.h"
/* ADC definitions */
#define ADC0 ADC_BASE
#define ADC1 (ADC_BASE + 0x400U)
/* registers definitions */
#define ADC_STAT(adcx) REG32((adcx) + 0x00U) /*!< ADC status register */
#define ADC_CTL0(adcx) REG32((adcx) + 0x04U) /*!< ADC control register 0 */
#define ADC_CTL1(adcx) REG32((adcx) + 0x08U) /*!< ADC control register 1 */
#define ADC_SAMPT0(adcx) REG32((adcx) + 0x0CU) /*!< ADC sampling time register 0 */
#define ADC_SAMPT1(adcx) REG32((adcx) + 0x10U) /*!< ADC sampling time register 1 */
#define ADC_IOFF0(adcx) REG32((adcx) + 0x14U) /*!< ADC inserted channel data offset register 0 */
#define ADC_IOFF1(adcx) REG32((adcx) + 0x18U) /*!< ADC inserted channel data offset register 1 */
#define ADC_IOFF2(adcx) REG32((adcx) + 0x1CU) /*!< ADC inserted channel data offset register 2 */
#define ADC_IOFF3(adcx) REG32((adcx) + 0x20U) /*!< ADC inserted channel data offset register 3 */
#define ADC_WDHT(adcx) REG32((adcx) + 0x24U) /*!< ADC watchdog high threshold register */
#define ADC_WDLT(adcx) REG32((adcx) + 0x28U) /*!< ADC watchdog low threshold register */
#define ADC_RSQ0(adcx) REG32((adcx) + 0x2CU) /*!< ADC regular sequence register 0 */
#define ADC_RSQ1(adcx) REG32((adcx) + 0x30U) /*!< ADC regular sequence register 1 */
#define ADC_RSQ2(adcx) REG32((adcx) + 0x34U) /*!< ADC regular sequence register 2 */
#define ADC_ISQ(adcx) REG32((adcx) + 0x38U) /*!< ADC inserted sequence register */
#define ADC_IDATA0(adcx) REG32((adcx) + 0x3CU) /*!< ADC inserted data register 0 */
#define ADC_IDATA1(adcx) REG32((adcx) + 0x40U) /*!< ADC inserted data register 1 */
#define ADC_IDATA2(adcx) REG32((adcx) + 0x44U) /*!< ADC inserted data register 2 */
#define ADC_IDATA3(adcx) REG32((adcx) + 0x48U) /*!< ADC inserted data register 3 */
#define ADC_RDATA(adcx) REG32((adcx) + 0x4CU) /*!< ADC regular data register */
#define ADC_OVSCR(adcx) REG32((adcx) + 0x80U) /*!< ADC oversample control register */
/* bits definitions */
/* ADC_STAT */
#define ADC_STAT_WDE BIT(0) /*!< analog watchdog event flag */
#define ADC_STAT_EOC BIT(1) /*!< end of conversion */
#define ADC_STAT_EOIC BIT(2) /*!< inserted channel end of conversion */
#define ADC_STAT_STIC BIT(3) /*!< inserted channel start flag */
#define ADC_STAT_STRC BIT(4) /*!< regular channel start flag */
/* ADC_CTL0 */
#define ADC_CTL0_WDCHSEL BITS(0,4) /*!< analog watchdog channel select bits */
#define ADC_CTL0_EOCIE BIT(5) /*!< interrupt enable for EOC */
#define ADC_CTL0_WDEIE BIT(6) /*!< analog watchdog interrupt enable */
#define ADC_CTL0_EOICIE BIT(7) /*!< interrupt enable for inserted channels */
#define ADC_CTL0_SM BIT(8) /*!< scan mode */
#define ADC_CTL0_WDSC BIT(9) /*!< when in scan mode, analog watchdog is effective on a single channel */
#define ADC_CTL0_ICA BIT(10) /*!< automatic inserted group conversion */
#define ADC_CTL0_DISRC BIT(11) /*!< discontinuous mode on regular channels */
#define ADC_CTL0_DISIC BIT(12) /*!< discontinuous mode on inserted channels */
#define ADC_CTL0_DISNUM BITS(13,15) /*!< discontinuous mode channel count */
#define ADC_CTL0_SYNCM BITS(16,19) /*!< sync mode selection */
#define ADC_CTL0_IWDEN BIT(22) /*!< analog watchdog enable on inserted channels */
#define ADC_CTL0_RWDEN BIT(23) /*!< analog watchdog enable on regular channels */
/* ADC_CTL1 */
#define ADC_CTL1_ADCON BIT(0) /*!< ADC converter on */
#define ADC_CTL1_CTN BIT(1) /*!< continuous conversion */
#define ADC_CTL1_CLB BIT(2) /*!< ADC calibration */
#define ADC_CTL1_RSTCLB BIT(3) /*!< reset calibration */
#define ADC_CTL1_DMA BIT(8) /*!< direct memory access mode */
#define ADC_CTL1_DAL BIT(11) /*!< data alignment */
#define ADC_CTL1_ETSIC BITS(12,14) /*!< external trigger select for inserted channel */
#define ADC_CTL1_ETEIC BIT(15) /*!< external trigger enable for inserted channel */
#define ADC_CTL1_ETSRC BITS(17,19) /*!< external trigger select for regular channel */
#define ADC_CTL1_ETERC BIT(20) /*!< external trigger conversion mode for inserted channels */
#define ADC_CTL1_SWICST BIT(21) /*!< start on inserted channel */
#define ADC_CTL1_SWRCST BIT(22) /*!< start on regular channel */
#define ADC_CTL1_TSVREN BIT(23) /*!< channel 16 and 17 enable of ADC0 */
/* ADC_SAMPTx x=0..1 */
#define ADC_SAMPTX_SPTN BITS(0,2) /*!< channel n sample time selection */
/* ADC_IOFFx x=0..3 */
#define ADC_IOFFX_IOFF BITS(0,11) /*!< data offset for inserted channel x */
/* ADC_WDHT */
#define ADC_WDHT_WDHT BITS(0,11) /*!< analog watchdog high threshold */
/* ADC_WDLT */
#define ADC_WDLT_WDLT BITS(0,11) /*!< analog watchdog low threshold */
/* ADC_RSQx x=0..2 */
#define ADC_RSQX_RSQN BITS(0,4) /*!< nth conversion in regular sequence */
#define ADC_RSQ0_RL BITS(20,23) /*!< regular channel sequence length */
/* ADC_ISQ */
#define ADC_ISQ_ISQN BITS(0,4) /*!< nth conversion in inserted sequence */
#define ADC_ISQ_IL BITS(20,21) /*!< inserted sequence length */
/* ADC_IDATAx x=0..3*/
#define ADC_IDATAX_IDATAN BITS(0,15) /*!< inserted data n */
/* ADC_RDATA */
#define ADC_RDATA_RDATA BITS(0,15) /*!< regular data */
#define ADC_RDATA_ADC1RDTR BITS(16,31) /*!< ADC1 regular channel data */
/* ADC_OVSCR */
#define ADC_OVSCR_OVSEN BIT(0) /*!< oversampling enable */
#define ADC_OVSCR_OVSR BITS(2,4) /*!< oversampling ratio */
#define ADC_OVSCR_OVSS BITS(5,8) /*!< oversampling shift */
#define ADC_OVSCR_TOVS BIT(9) /*!< triggered oversampling */
#define ADC_OVSCR_DRES BITS(12,13) /*!< ADC data resolution */
/* constants definitions */
/* adc_stat register value */
#define ADC_FLAG_WDE ADC_STAT_WDE /*!< analog watchdog event flag */
#define ADC_FLAG_EOC ADC_STAT_EOC /*!< end of conversion */
#define ADC_FLAG_EOIC ADC_STAT_EOIC /*!< inserted channel end of conversion */
#define ADC_FLAG_STIC ADC_STAT_STIC /*!< inserted channel start flag */
#define ADC_FLAG_STRC ADC_STAT_STRC /*!< regular channel start flag */
/* adc_ctl0 register value */
#define CTL0_DISNUM(regval) (BITS(13,15) & ((uint32_t)(regval) << 13)) /*!< write value to ADC_CTL0_DISNUM bit field */
/* scan mode */
#define ADC_SCAN_MODE ADC_CTL0_SM /*!< scan mode */
/* inserted channel group convert automatically */
#define ADC_INSERTED_CHANNEL_AUTO ADC_CTL0_ICA /*!< inserted channel group convert automatically */
/* ADC sync mode */
#define CTL0_SYNCM(regval) (BITS(16,19) & ((uint32_t)(regval) << 16)) /*!< write value to ADC_CTL0_SYNCM bit field */
#define ADC_MODE_FREE CTL0_SYNCM(0) /*!< all the ADCs work independently */
#define ADC_DAUL_REGULAL_PARALLEL_INSERTED_PARALLEL CTL0_SYNCM(1) /*!< ADC0 and ADC1 work in combined regular parallel + inserted parallel mode */
#define ADC_DAUL_REGULAL_PARALLEL_INSERTED_ROTATION CTL0_SYNCM(2) /*!< ADC0 and ADC1 work in combined regular parallel + trigger rotation mode */
#define ADC_DAUL_INSERTED_PARALLEL_REGULAL_FOLLOWUP_FAST CTL0_SYNCM(3) /*!< ADC0 and ADC1 work in combined inserted parallel + follow-up fast mode */
#define ADC_DAUL_INSERTED_PARALLEL_REGULAL_FOLLOWUP_SLOW CTL0_SYNCM(4) /*!< ADC0 and ADC1 work in combined inserted parallel + follow-up slow mode */
#define ADC_DAUL_INSERTED_PARALLEL CTL0_SYNCM(5) /*!< ADC0 and ADC1 work in inserted parallel mode only */
#define ADC_DAUL_REGULAL_PARALLEL CTL0_SYNCM(6) /*!< ADC0 and ADC1 work in regular parallel mode only */
#define ADC_DAUL_REGULAL_FOLLOWUP_FAST CTL0_SYNCM(7) /*!< ADC0 and ADC1 work in follow-up fast mode only */
#define ADC_DAUL_REGULAL_FOLLOWUP_SLOW CTL0_SYNCM(8) /*!< ADC0 and ADC1 work in follow-up slow mode only */
#define ADC_DAUL_INSERTED_TRIGGER_ROTATION CTL0_SYNCM(9) /*!< ADC0 and ADC1 work in trigger rotation mode only */
/* adc_ctl1 register value */
#define ADC_DATAALIGN_RIGHT ((uint32_t)0x00000000U) /*!< LSB alignment */
#define ADC_DATAALIGN_LEFT ADC_CTL1_DAL /*!< MSB alignment */
/* continuous mode */
#define ADC_CONTINUOUS_MODE ADC_CTL1_CTN /*!< continuous mode */
/* external trigger select for regular channel */
#define CTL1_ETSRC(regval) (BITS(17,19) & ((uint32_t)(regval) << 17)) /*!< write value to ADC_CTL1_ETSRC bit field */
/* for ADC0 and ADC1 regular channel */
#define ADC0_1_EXTTRIG_REGULAR_T0_CH0 CTL1_ETSRC(0) /*!< TIMER0 CH0 event select */
#define ADC0_1_EXTTRIG_REGULAR_T0_CH1 CTL1_ETSRC(1) /*!< TIMER0 CH1 event select */
#define ADC0_1_EXTTRIG_REGULAR_T0_CH2 CTL1_ETSRC(2) /*!< TIMER0 CH2 event select */
#define ADC0_1_EXTTRIG_REGULAR_T1_CH1 CTL1_ETSRC(3) /*!< TIMER1 CH1 event select */
#define ADC0_1_EXTTRIG_REGULAR_T2_TRGO CTL1_ETSRC(4) /*!< TIMER2 TRGO event select */
#define ADC0_1_EXTTRIG_REGULAR_T3_CH3 CTL1_ETSRC(5) /*!< TIMER3 CH3 event select */
#define ADC0_1_EXTTRIG_REGULAR_EXTI_11 CTL1_ETSRC(6) /*!< external interrupt line 11 */
#define ADC0_1_EXTTRIG_REGULAR_NONE CTL1_ETSRC(7) /*!< software trigger */
/* external trigger mode for inserted channel */
#define CTL1_ETSIC(regval) (BITS(12,14) & ((uint32_t)(regval) << 12)) /*!< write value to ADC_CTL1_ETSIC bit field */
/* for ADC0 and ADC1 inserted channel */
#define ADC0_1_EXTTRIG_INSERTED_T0_TRGO CTL1_ETSIC(0) /*!< TIMER0 TRGO event select */
#define ADC0_1_EXTTRIG_INSERTED_T0_CH3 CTL1_ETSIC(1) /*!< TIMER0 CH3 event select */
#define ADC0_1_EXTTRIG_INSERTED_T1_TRGO CTL1_ETSIC(2) /*!< TIMER1 TRGO event select */
#define ADC0_1_EXTTRIG_INSERTED_T1_CH0 CTL1_ETSIC(3) /*!< TIMER1 CH0 event select */
#define ADC0_1_EXTTRIG_INSERTED_T2_CH3 CTL1_ETSIC(4) /*!< TIMER2 CH3 event select */
#define ADC0_1_EXTTRIG_INSERTED_T3_TRGO CTL1_ETSIC(5) /*!< TIMER3 TRGO event select */
#define ADC0_1_EXTTRIG_INSERTED_EXTI_15 CTL1_ETSIC(6) /*!< external interrupt line 15 */
#define ADC0_1_EXTTRIG_INSERTED_NONE CTL1_ETSIC(7) /*!< software trigger */
/* adc_samptx register value */
#define SAMPTX_SPT(regval) (BITS(0,2) & ((uint32_t)(regval) << 0)) /*!< write value to ADC_SAMPTX_SPT bit field */
#define ADC_SAMPLETIME_1POINT5 SAMPTX_SPT(0) /*!< 1.5 sampling cycles */
#define ADC_SAMPLETIME_7POINT5 SAMPTX_SPT(1) /*!< 7.5 sampling cycles */
#define ADC_SAMPLETIME_13POINT5 SAMPTX_SPT(2) /*!< 13.5 sampling cycles */
#define ADC_SAMPLETIME_28POINT5 SAMPTX_SPT(3) /*!< 28.5 sampling cycles */
#define ADC_SAMPLETIME_41POINT5 SAMPTX_SPT(4) /*!< 41.5 sampling cycles */
#define ADC_SAMPLETIME_55POINT5 SAMPTX_SPT(5) /*!< 55.5 sampling cycles */
#define ADC_SAMPLETIME_71POINT5 SAMPTX_SPT(6) /*!< 71.5 sampling cycles */
#define ADC_SAMPLETIME_239POINT5 SAMPTX_SPT(7) /*!< 239.5 sampling cycles */
/* adc_ioffx register value */
#define IOFFX_IOFF(regval) (BITS(0,11) & ((uint32_t)(regval) << 0)) /*!< write value to ADC_IOFFX_IOFF bit field */
/* adc_wdht register value */
#define WDHT_WDHT(regval) (BITS(0,11) & ((uint32_t)(regval) << 0)) /*!< write value to ADC_WDHT_WDHT bit field */
/* adc_wdlt register value */
#define WDLT_WDLT(regval) (BITS(0,11) & ((uint32_t)(regval) << 0)) /*!< write value to ADC_WDLT_WDLT bit field */
/* adc_rsqx register value */
#define RSQ0_RL(regval) (BITS(20,23) & ((uint32_t)(regval) << 20)) /*!< write value to ADC_RSQ0_RL bit field */
/* adc_isq register value */
#define ISQ_IL(regval) (BITS(20,21) & ((uint32_t)(regval) << 20)) /*!< write value to ADC_ISQ_IL bit field */
/* ADC channel group definitions */
#define ADC_REGULAR_CHANNEL ((uint8_t)0x01U) /*!< adc regular channel group */
#define ADC_INSERTED_CHANNEL ((uint8_t)0x02U) /*!< adc inserted channel group */
#define ADC_REGULAR_INSERTED_CHANNEL ((uint8_t)0x03U) /*!< both regular and inserted channel group */
#define ADC_CHANNEL_DISCON_DISABLE ((uint8_t)0x04U) /*!< disable discontinuous mode of regular & inserted channel */
/* ADC inserted channel definitions */
#define ADC_INSERTED_CHANNEL_0 ((uint8_t)0x00U) /*!< adc inserted channel 0 */
#define ADC_INSERTED_CHANNEL_1 ((uint8_t)0x01U) /*!< adc inserted channel 1 */
#define ADC_INSERTED_CHANNEL_2 ((uint8_t)0x02U) /*!< adc inserted channel 2 */
#define ADC_INSERTED_CHANNEL_3 ((uint8_t)0x03U) /*!< adc inserted channel 3 */
/* ADC channel definitions */
#define ADC_CHANNEL_0 ((uint8_t)0x00U) /*!< ADC channel 0 */
#define ADC_CHANNEL_1 ((uint8_t)0x01U) /*!< ADC channel 1 */
#define ADC_CHANNEL_2 ((uint8_t)0x02U) /*!< ADC channel 2 */
#define ADC_CHANNEL_3 ((uint8_t)0x03U) /*!< ADC channel 3 */
#define ADC_CHANNEL_4 ((uint8_t)0x04U) /*!< ADC channel 4 */
#define ADC_CHANNEL_5 ((uint8_t)0x05U) /*!< ADC channel 5 */
#define ADC_CHANNEL_6 ((uint8_t)0x06U) /*!< ADC channel 6 */
#define ADC_CHANNEL_7 ((uint8_t)0x07U) /*!< ADC channel 7 */
#define ADC_CHANNEL_8 ((uint8_t)0x08U) /*!< ADC channel 8 */
#define ADC_CHANNEL_9 ((uint8_t)0x09U) /*!< ADC channel 9 */
#define ADC_CHANNEL_10 ((uint8_t)0x0AU) /*!< ADC channel 10 */
#define ADC_CHANNEL_11 ((uint8_t)0x0BU) /*!< ADC channel 11 */
#define ADC_CHANNEL_12 ((uint8_t)0x0CU) /*!< ADC channel 12 */
#define ADC_CHANNEL_13 ((uint8_t)0x0DU) /*!< ADC channel 13 */
#define ADC_CHANNEL_14 ((uint8_t)0x0EU) /*!< ADC channel 14 */
#define ADC_CHANNEL_15 ((uint8_t)0x0FU) /*!< ADC channel 15 */
#define ADC_CHANNEL_16 ((uint8_t)0x10U) /*!< ADC channel 16 */
#define ADC_CHANNEL_17 ((uint8_t)0x11U) /*!< ADC channel 17 */
/* ADC interrupt */
#define ADC_INT_WDE ADC_STAT_WDE /*!< analog watchdog event interrupt */
#define ADC_INT_EOC ADC_STAT_EOC /*!< end of group conversion interrupt */
#define ADC_INT_EOIC ADC_STAT_EOIC /*!< end of inserted group conversion interrupt */
/* ADC interrupt flag */
#define ADC_INT_FLAG_WDE ADC_STAT_WDE /*!< analog watchdog event interrupt flag */
#define ADC_INT_FLAG_EOC ADC_STAT_EOC /*!< end of group conversion interrupt flag */
#define ADC_INT_FLAG_EOIC ADC_STAT_EOIC /*!< end of inserted group conversion interrupt flag */
/* ADC resolution definitions */
#define OVSCR_DRES(regval) (BITS(12,13) & ((uint32_t)(regval) << 12))
#define ADC_RESOLUTION_12B OVSCR_DRES(0) /*!< 12-bit ADC resolution */
#define ADC_RESOLUTION_10B OVSCR_DRES(1) /*!< 10-bit ADC resolution */
#define ADC_RESOLUTION_8B OVSCR_DRES(2) /*!< 8-bit ADC resolution */
#define ADC_RESOLUTION_6B OVSCR_DRES(3) /*!< 6-bit ADC resolution */
/* ADC oversampling mode */
#define ADC_OVERSAMPLING_ALL_CONVERT 0 /*!< all oversampled conversions for a channel are done consecutively after a trigger */
#define ADC_OVERSAMPLING_ONE_CONVERT 1 /*!< each oversampled conversion for a channel needs a trigger */
/* ADC oversampling shift */
#define OVSCR_OVSS(regval) (BITS(5,8) & ((uint32_t)(regval) << 5))
#define ADC_OVERSAMPLING_SHIFT_NONE OVSCR_OVSS(0) /*!< no oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_1B OVSCR_OVSS(1) /*!< 1-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_2B OVSCR_OVSS(2) /*!< 2-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_3B OVSCR_OVSS(3) /*!< 3-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_4B OVSCR_OVSS(4) /*!< 4-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_5B OVSCR_OVSS(5) /*!< 5-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_6B OVSCR_OVSS(6) /*!< 6-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_7B OVSCR_OVSS(7) /*!< 7-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_8B OVSCR_OVSS(8) /*!< 8-bit oversampling shift */
/* ADC oversampling ratio */
#define OVSCR_OVSR(regval) (BITS(2,4) & ((uint32_t)(regval) << 2))
#define ADC_OVERSAMPLING_RATIO_MUL2 OVSCR_OVSR(0) /*!< oversampling ratio X2 */
#define ADC_OVERSAMPLING_RATIO_MUL4 OVSCR_OVSR(1) /*!< oversampling ratio X4 */
#define ADC_OVERSAMPLING_RATIO_MUL8 OVSCR_OVSR(2) /*!< oversampling ratio X8 */
#define ADC_OVERSAMPLING_RATIO_MUL16 OVSCR_OVSR(3) /*!< oversampling ratio X16 */
#define ADC_OVERSAMPLING_RATIO_MUL32 OVSCR_OVSR(4) /*!< oversampling ratio X32 */
#define ADC_OVERSAMPLING_RATIO_MUL64 OVSCR_OVSR(5) /*!< oversampling ratio X64 */
#define ADC_OVERSAMPLING_RATIO_MUL128 OVSCR_OVSR(6) /*!< oversampling ratio X128 */
#define ADC_OVERSAMPLING_RATIO_MUL256 OVSCR_OVSR(7) /*!< oversampling ratio X256 */
/* function declarations */
/* initialization config */
/* reset ADC */
void adc_deinit(uint32_t adc_periph);
/* configure the ADC sync mode */
void adc_mode_config(uint32_t mode);
/* enable or disable ADC special function */
void adc_special_function_config(uint32_t adc_periph, uint32_t function, ControlStatus newvalue);
/* configure ADC data alignment */
void adc_data_alignment_config(uint32_t adc_periph, uint32_t data_alignment);
/* enable ADC interface */
void adc_enable(uint32_t adc_periph);
/* disable ADC interface */
void adc_disable(uint32_t adc_periph);
/* ADC calibration and reset calibration */
void adc_calibration_enable(uint32_t adc_periph);
/* enable the temperature sensor and Vrefint channel */
void adc_tempsensor_vrefint_enable(void);
/* disable the temperature sensor and Vrefint channel */
void adc_tempsensor_vrefint_disable(void);
/* DMA config */
/* enable DMA request */
void adc_dma_mode_enable(uint32_t adc_periph);
/* disable DMA request */
void adc_dma_mode_disable(uint32_t adc_periph);
/* regular group and inserted group config */
/* configure ADC discontinuous mode */
void adc_discontinuous_mode_config(uint32_t adc_periph, uint8_t adc_channel_group, uint8_t length);
/* configure the length of regular channel group or inserted channel group */
void adc_channel_length_config(uint32_t adc_periph, uint8_t adc_channel_group, uint32_t length);
/* configure ADC regular channel */
void adc_regular_channel_config(uint32_t adc_periph, uint8_t rank, uint8_t adc_channel, uint32_t sample_time);
/* configure ADC inserted channel */
void adc_inserted_channel_config(uint32_t adc_periph, uint8_t rank, uint8_t adc_channel, uint32_t sample_time);
/* configure ADC inserted channel offset */
void adc_inserted_channel_offset_config(uint32_t adc_periph, uint8_t inserted_channel, uint16_t offset);
/* configure ADC external trigger source */
void adc_external_trigger_source_config(uint32_t adc_periph, uint8_t adc_channel_group, uint32_t external_trigger_source);
/* configure ADC external trigger */
void adc_external_trigger_config(uint32_t adc_periph, uint8_t adc_channel_group, ControlStatus newvalue);
/* enable ADC software trigger */
void adc_software_trigger_enable(uint32_t adc_periph, uint8_t adc_channel_group);
/* get channel data */
/* read ADC regular group data register */
uint16_t adc_regular_data_read(uint32_t adc_periph);
/* read ADC inserted group data register */
uint16_t adc_inserted_data_read(uint32_t adc_periph, uint8_t inserted_channel);
/* read the last ADC0 and ADC1 conversion result data in sync mode */
uint32_t adc_sync_mode_convert_value_read(void);
/* watchdog config */
/* configure ADC analog watchdog single channel */
void adc_watchdog_single_channel_enable(uint32_t adc_periph, uint8_t adc_channel);
/* configure ADC analog watchdog group channel */
void adc_watchdog_group_channel_enable(uint32_t adc_periph, uint8_t adc_channel_group);
/* disable ADC analog watchdog */
void adc_watchdog_disable(uint32_t adc_periph);
/* configure ADC analog watchdog threshold */
void adc_watchdog_threshold_config(uint32_t adc_periph, uint16_t low_threshold, uint16_t high_threshold);
/* interrupt & flag functions */
/* get the ADC flag bits */
FlagStatus adc_flag_get(uint32_t adc_periph, uint32_t adc_flag);
/* clear the ADC flag bits */
void adc_flag_clear(uint32_t adc_periph, uint32_t adc_flag);
/* get the bit state of ADCx software start conversion */
FlagStatus adc_regular_software_startconv_flag_get(uint32_t adc_periph);
/* get the bit state of ADCx software inserted channel start conversion */
FlagStatus adc_inserted_software_startconv_flag_get(uint32_t adc_periph);
/* get the ADC interrupt bits */
FlagStatus adc_interrupt_flag_get(uint32_t adc_periph, uint32_t adc_interrupt);
/* clear the ADC flag */
void adc_interrupt_flag_clear(uint32_t adc_periph, uint32_t adc_interrupt);
/* enable ADC interrupt */
void adc_interrupt_enable(uint32_t adc_periph, uint32_t adc_interrupt);
/* disable ADC interrupt */
void adc_interrupt_disable(uint32_t adc_periph, uint32_t adc_interrupt);
/* ADC resolution & oversample */
/* ADC resolution config */
void adc_resolution_config(uint32_t adc_periph, uint32_t resolution);
/* ADC oversample mode config */
void adc_oversample_mode_config(uint32_t adc_periph, uint8_t mode, uint16_t shift, uint8_t ratio);
/* enable ADC oversample mode */
void adc_oversample_mode_enable(uint32_t adc_periph);
/* disable ADC oversample mode */
void adc_oversample_mode_disable(uint32_t adc_periph);
#endif /* GD32VF103_ADC_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_bkp.h
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/*!
\file gd32vf103_bkp.h
\brief definitions for the BKP
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_BKP_H
#define GD32VF103_BKP_H
#include "gd32vf103.h"
/* BKP definitions */
#define BKP BKP_BASE /*!< BKP base address */
/* registers definitions */
#define BKP_DATA0 REG16((BKP) + 0x04U) /*!< BKP data register 0 */
#define BKP_DATA1 REG16((BKP) + 0x08U) /*!< BKP data register 1 */
#define BKP_DATA2 REG16((BKP) + 0x0CU) /*!< BKP data register 2 */
#define BKP_DATA3 REG16((BKP) + 0x10U) /*!< BKP data register 3 */
#define BKP_DATA4 REG16((BKP) + 0x14U) /*!< BKP data register 4 */
#define BKP_DATA5 REG16((BKP) + 0x18U) /*!< BKP data register 5 */
#define BKP_DATA6 REG16((BKP) + 0x1CU) /*!< BKP data register 6 */
#define BKP_DATA7 REG16((BKP) + 0x20U) /*!< BKP data register 7 */
#define BKP_DATA8 REG16((BKP) + 0x24U) /*!< BKP data register 8 */
#define BKP_DATA9 REG16((BKP) + 0x28U) /*!< BKP data register 9 */
#define BKP_DATA10 REG16((BKP) + 0x40U) /*!< BKP data register 10 */
#define BKP_DATA11 REG16((BKP) + 0x44U) /*!< BKP data register 11 */
#define BKP_DATA12 REG16((BKP) + 0x48U) /*!< BKP data register 12 */
#define BKP_DATA13 REG16((BKP) + 0x4CU) /*!< BKP data register 13 */
#define BKP_DATA14 REG16((BKP) + 0x50U) /*!< BKP data register 14 */
#define BKP_DATA15 REG16((BKP) + 0x54U) /*!< BKP data register 15 */
#define BKP_DATA16 REG16((BKP) + 0x58U) /*!< BKP data register 16 */
#define BKP_DATA17 REG16((BKP) + 0x5CU) /*!< BKP data register 17 */
#define BKP_DATA18 REG16((BKP) + 0x60U) /*!< BKP data register 18 */
#define BKP_DATA19 REG16((BKP) + 0x64U) /*!< BKP data register 19 */
#define BKP_DATA20 REG16((BKP) + 0x68U) /*!< BKP data register 20 */
#define BKP_DATA21 REG16((BKP) + 0x6CU) /*!< BKP data register 21 */
#define BKP_DATA22 REG16((BKP) + 0x70U) /*!< BKP data register 22 */
#define BKP_DATA23 REG16((BKP) + 0x74U) /*!< BKP data register 23 */
#define BKP_DATA24 REG16((BKP) + 0x78U) /*!< BKP data register 24 */
#define BKP_DATA25 REG16((BKP) + 0x7CU) /*!< BKP data register 25 */
#define BKP_DATA26 REG16((BKP) + 0x80U) /*!< BKP data register 26 */
#define BKP_DATA27 REG16((BKP) + 0x84U) /*!< BKP data register 27 */
#define BKP_DATA28 REG16((BKP) + 0x88U) /*!< BKP data register 28 */
#define BKP_DATA29 REG16((BKP) + 0x8CU) /*!< BKP data register 29 */
#define BKP_DATA30 REG16((BKP) + 0x90U) /*!< BKP data register 30 */
#define BKP_DATA31 REG16((BKP) + 0x94U) /*!< BKP data register 31 */
#define BKP_DATA32 REG16((BKP) + 0x98U) /*!< BKP data register 32 */
#define BKP_DATA33 REG16((BKP) + 0x9CU) /*!< BKP data register 33 */
#define BKP_DATA34 REG16((BKP) + 0xA0U) /*!< BKP data register 34 */
#define BKP_DATA35 REG16((BKP) + 0xA4U) /*!< BKP data register 35 */
#define BKP_DATA36 REG16((BKP) + 0xA8U) /*!< BKP data register 36 */
#define BKP_DATA37 REG16((BKP) + 0xACU) /*!< BKP data register 37 */
#define BKP_DATA38 REG16((BKP) + 0xB0U) /*!< BKP data register 38 */
#define BKP_DATA39 REG16((BKP) + 0xB4U) /*!< BKP data register 39 */
#define BKP_DATA40 REG16((BKP) + 0xB8U) /*!< BKP data register 40 */
#define BKP_DATA41 REG16((BKP) + 0xBCU) /*!< BKP data register 41 */
#define BKP_OCTL REG16((BKP) + 0x2CU) /*!< RTC signal output control register */
#define BKP_TPCTL REG16((BKP) + 0x30U) /*!< tamper pin control register */
#define BKP_TPCS REG16((BKP) + 0x34U) /*!< tamper control and status register */
/* bits definitions */
/* BKP_DATA */
#define BKP_DATA BITS(0,15) /*!< backup data */
/* BKP_OCTL */
#define BKP_OCTL_RCCV BITS(0,6) /*!< RTC clock calibration value */
#define BKP_OCTL_COEN BIT(7) /*!< RTC clock calibration output enable */
#define BKP_OCTL_ASOEN BIT(8) /*!< RTC alarm or second signal output enable */
#define BKP_OCTL_ROSEL BIT(9) /*!< RTC output selection */
/* BKP_TPCTL */
#define BKP_TPCTL_TPEN BIT(0) /*!< tamper detection enable */
#define BKP_TPCTL_TPAL BIT(1) /*!< tamper pin active level */
/* BKP_TPCS */
#define BKP_TPCS_TER BIT(0) /*!< tamper event reset */
#define BKP_TPCS_TIR BIT(1) /*!< tamper interrupt reset */
#define BKP_TPCS_TPIE BIT(2) /*!< tamper interrupt enable */
#define BKP_TPCS_TEF BIT(8) /*!< tamper event flag */
#define BKP_TPCS_TIF BIT(9) /*!< tamper interrupt flag */
/* constants definitions */
/* BKP data register number */
typedef enum
{
BKP_DATA_0 = 1, /*!< BKP data register 0 */
BKP_DATA_1, /*!< BKP data register 1 */
BKP_DATA_2, /*!< BKP data register 2 */
BKP_DATA_3, /*!< BKP data register 3 */
BKP_DATA_4, /*!< BKP data register 4 */
BKP_DATA_5, /*!< BKP data register 5 */
BKP_DATA_6, /*!< BKP data register 6 */
BKP_DATA_7, /*!< BKP data register 7 */
BKP_DATA_8, /*!< BKP data register 8 */
BKP_DATA_9, /*!< BKP data register 9 */
BKP_DATA_10, /*!< BKP data register 10 */
BKP_DATA_11, /*!< BKP data register 11 */
BKP_DATA_12, /*!< BKP data register 12 */
BKP_DATA_13, /*!< BKP data register 13 */
BKP_DATA_14, /*!< BKP data register 14 */
BKP_DATA_15, /*!< BKP data register 15 */
BKP_DATA_16, /*!< BKP data register 16 */
BKP_DATA_17, /*!< BKP data register 17 */
BKP_DATA_18, /*!< BKP data register 18 */
BKP_DATA_19, /*!< BKP data register 19 */
BKP_DATA_20, /*!< BKP data register 20 */
BKP_DATA_21, /*!< BKP data register 21 */
BKP_DATA_22, /*!< BKP data register 22 */
BKP_DATA_23, /*!< BKP data register 23 */
BKP_DATA_24, /*!< BKP data register 24 */
BKP_DATA_25, /*!< BKP data register 25 */
BKP_DATA_26, /*!< BKP data register 26 */
BKP_DATA_27, /*!< BKP data register 27 */
BKP_DATA_28, /*!< BKP data register 28 */
BKP_DATA_29, /*!< BKP data register 29 */
BKP_DATA_30, /*!< BKP data register 30 */
BKP_DATA_31, /*!< BKP data register 31 */
BKP_DATA_32, /*!< BKP data register 32 */
BKP_DATA_33, /*!< BKP data register 33 */
BKP_DATA_34, /*!< BKP data register 34 */
BKP_DATA_35, /*!< BKP data register 35 */
BKP_DATA_36, /*!< BKP data register 36 */
BKP_DATA_37, /*!< BKP data register 37 */
BKP_DATA_38, /*!< BKP data register 38 */
BKP_DATA_39, /*!< BKP data register 39 */
BKP_DATA_40, /*!< BKP data register 40 */
BKP_DATA_41, /*!< BKP data register 41 */
}bkp_data_register_enum;
/* BKP register */
#define BKP_DATA0_9(number) REG16((BKP) + 0x04U + (number) * 0x04U)
#define BKP_DATA10_41(number) REG16((BKP) + 0x40U + ((number)-10U) * 0x04U)
/* get data of BKP data register */
#define BKP_DATA_GET(regval) GET_BITS((uint32_t)(regval), 0, 15)
/* RTC clock calibration value */
#define OCTL_RCCV(regval) (BITS(0,6) & ((uint32_t)(regval) << 0))
/* RTC output selection */
#define RTC_OUTPUT_ALARM_PULSE ((uint16_t)0x0000U) /*!< RTC alarm pulse is selected as the RTC output */
#define RTC_OUTPUT_SECOND_PULSE ((uint16_t)0x0200U) /*!< RTC second pulse is selected as the RTC output */
/* tamper pin active level */
#define TAMPER_PIN_ACTIVE_HIGH ((uint16_t)0x0000U) /*!< the tamper pin is active high */
#define TAMPER_PIN_ACTIVE_LOW ((uint16_t)0x0002U) /*!< the tamper pin is active low */
/* tamper flag */
#define BKP_FLAG_TAMPER BKP_TPCS_TEF /*!< tamper event flag */
/* tamper interrupt flag */
#define BKP_INT_FLAG_TAMPER BKP_TPCS_TIF /*!< tamper interrupt flag */
/* function declarations */
/* reset BKP registers */
void bkp_deinit(void);
/* write BKP data register */
void bkp_data_write(bkp_data_register_enum register_number, uint16_t data);
/* read BKP data register */
uint16_t bkp_data_read(bkp_data_register_enum register_number);
/* RTC related functions */
/* enable RTC clock calibration output */
void bkp_rtc_calibration_output_enable(void);
/* disable RTC clock calibration output */
void bkp_rtc_calibration_output_disable(void);
/* enable RTC alarm or second signal output */
void bkp_rtc_signal_output_enable(void);
/* disable RTC alarm or second signal output */
void bkp_rtc_signal_output_disable(void);
/* select RTC output */
void bkp_rtc_output_select(uint16_t outputsel);
/* set RTC clock calibration value */
void bkp_rtc_calibration_value_set(uint8_t value);
/* tamper pin related functions */
/* enable tamper pin detection */
void bkp_tamper_detection_enable(void);
/* disable tamper pin detection */
void bkp_tamper_detection_disable(void);
/* set tamper pin active level */
void bkp_tamper_active_level_set(uint16_t level);
/* interrupt & flag functions */
/* enable tamper interrupt */
void bkp_interrupt_enable(void);
/* disable tamper interrupt */
void bkp_interrupt_disable(void);
/* get tamper flag state */
FlagStatus bkp_flag_get(void);
/* clear tamper flag state */
void bkp_flag_clear(void);
/* get tamper interrupt flag state */
FlagStatus bkp_interrupt_flag_get(void);
/* clear tamper interrupt flag state */
void bkp_interrupt_flag_clear(void);
#endif /* GD32VF103_BKP_H */

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/*!
\file gd32vf103_can.h
\brief definitions for the CAN
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-11-27, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_CAN_H
#define GD32VF103_CAN_H
#include "gd32vf103.h"
/* CAN definitions */
#define CAN0 CAN_BASE /*!< CAN0 base address */
#define CAN1 (CAN0 + 0x00000400U) /*!< CAN1 base address */
/* registers definitions */
#define CAN_CTL(canx) REG32((canx) + 0x00U) /*!< CAN control register */
#define CAN_STAT(canx) REG32((canx) + 0x04U) /*!< CAN status register */
#define CAN_TSTAT(canx) REG32((canx) + 0x08U) /*!< CAN transmit status register*/
#define CAN_RFIFO0(canx) REG32((canx) + 0x0CU) /*!< CAN receive FIFO0 register */
#define CAN_RFIFO1(canx) REG32((canx) + 0x10U) /*!< CAN receive FIFO1 register */
#define CAN_INTEN(canx) REG32((canx) + 0x14U) /*!< CAN interrupt enable register */
#define CAN_ERR(canx) REG32((canx) + 0x18U) /*!< CAN error register */
#define CAN_BT(canx) REG32((canx) + 0x1CU) /*!< CAN bit timing register */
#define CAN_TMI0(canx) REG32((canx) + 0x180U) /*!< CAN transmit mailbox0 identifier register */
#define CAN_TMP0(canx) REG32((canx) + 0x184U) /*!< CAN transmit mailbox0 property register */
#define CAN_TMDATA00(canx) REG32((canx) + 0x188U) /*!< CAN transmit mailbox0 data0 register */
#define CAN_TMDATA10(canx) REG32((canx) + 0x18CU) /*!< CAN transmit mailbox0 data1 register */
#define CAN_TMI1(canx) REG32((canx) + 0x190U) /*!< CAN transmit mailbox1 identifier register */
#define CAN_TMP1(canx) REG32((canx) + 0x194U) /*!< CAN transmit mailbox1 property register */
#define CAN_TMDATA01(canx) REG32((canx) + 0x198U) /*!< CAN transmit mailbox1 data0 register */
#define CAN_TMDATA11(canx) REG32((canx) + 0x19CU) /*!< CAN transmit mailbox1 data1 register */
#define CAN_TMI2(canx) REG32((canx) + 0x1A0U) /*!< CAN transmit mailbox2 identifier register */
#define CAN_TMP2(canx) REG32((canx) + 0x1A4U) /*!< CAN transmit mailbox2 property register */
#define CAN_TMDATA02(canx) REG32((canx) + 0x1A8U) /*!< CAN transmit mailbox2 data0 register */
#define CAN_TMDATA12(canx) REG32((canx) + 0x1ACU) /*!< CAN transmit mailbox2 data1 register */
#define CAN_RFIFOMI0(canx) REG32((canx) + 0x1B0U) /*!< CAN receive FIFO0 mailbox identifier register */
#define CAN_RFIFOMP0(canx) REG32((canx) + 0x1B4U) /*!< CAN receive FIFO0 mailbox property register */
#define CAN_RFIFOMDATA00(canx) REG32((canx) + 0x1B8U) /*!< CAN receive FIFO0 mailbox data0 register */
#define CAN_RFIFOMDATA10(canx) REG32((canx) + 0x1BCU) /*!< CAN receive FIFO0 mailbox data1 register */
#define CAN_RFIFOMI1(canx) REG32((canx) + 0x1C0U) /*!< CAN receive FIFO1 mailbox identifier register */
#define CAN_RFIFOMP1(canx) REG32((canx) + 0x1C4U) /*!< CAN receive FIFO1 mailbox property register */
#define CAN_RFIFOMDATA01(canx) REG32((canx) + 0x1C8U) /*!< CAN receive FIFO1 mailbox data0 register */
#define CAN_RFIFOMDATA11(canx) REG32((canx) + 0x1CCU) /*!< CAN receive FIFO1 mailbox data1 register */
#define CAN_FCTL(canx) REG32((canx) + 0x200U) /*!< CAN filter control register */
#define CAN_FMCFG(canx) REG32((canx) + 0x204U) /*!< CAN filter mode register */
#define CAN_FSCFG(canx) REG32((canx) + 0x20CU) /*!< CAN filter scale register */
#define CAN_FAFIFO(canx) REG32((canx) + 0x214U) /*!< CAN filter associated FIFO register */
#define CAN_FW(canx) REG32((canx) + 0x21CU) /*!< CAN filter working register */
#define CAN_F0DATA0(canx) REG32((canx) + 0x240U) /*!< CAN filter 0 data 0 register */
#define CAN_F1DATA0(canx) REG32((canx) + 0x248U) /*!< CAN filter 1 data 0 register */
#define CAN_F2DATA0(canx) REG32((canx) + 0x250U) /*!< CAN filter 2 data 0 register */
#define CAN_F3DATA0(canx) REG32((canx) + 0x258U) /*!< CAN filter 3 data 0 register */
#define CAN_F4DATA0(canx) REG32((canx) + 0x260U) /*!< CAN filter 4 data 0 register */
#define CAN_F5DATA0(canx) REG32((canx) + 0x268U) /*!< CAN filter 5 data 0 register */
#define CAN_F6DATA0(canx) REG32((canx) + 0x270U) /*!< CAN filter 6 data 0 register */
#define CAN_F7DATA0(canx) REG32((canx) + 0x278U) /*!< CAN filter 7 data 0 register */
#define CAN_F8DATA0(canx) REG32((canx) + 0x280U) /*!< CAN filter 8 data 0 register */
#define CAN_F9DATA0(canx) REG32((canx) + 0x288U) /*!< CAN filter 9 data 0 register */
#define CAN_F10DATA0(canx) REG32((canx) + 0x290U) /*!< CAN filter 10 data 0 register */
#define CAN_F11DATA0(canx) REG32((canx) + 0x298U) /*!< CAN filter 11 data 0 register */
#define CAN_F12DATA0(canx) REG32((canx) + 0x2A0U) /*!< CAN filter 12 data 0 register */
#define CAN_F13DATA0(canx) REG32((canx) + 0x2A8U) /*!< CAN filter 13 data 0 register */
#define CAN_F14DATA0(canx) REG32((canx) + 0x2B0U) /*!< CAN filter 14 data 0 register */
#define CAN_F15DATA0(canx) REG32((canx) + 0x2B8U) /*!< CAN filter 15 data 0 register */
#define CAN_F16DATA0(canx) REG32((canx) + 0x2C0U) /*!< CAN filter 16 data 0 register */
#define CAN_F17DATA0(canx) REG32((canx) + 0x2C8U) /*!< CAN filter 17 data 0 register */
#define CAN_F18DATA0(canx) REG32((canx) + 0x2D0U) /*!< CAN filter 18 data 0 register */
#define CAN_F19DATA0(canx) REG32((canx) + 0x2D8U) /*!< CAN filter 19 data 0 register */
#define CAN_F20DATA0(canx) REG32((canx) + 0x2E0U) /*!< CAN filter 20 data 0 register */
#define CAN_F21DATA0(canx) REG32((canx) + 0x2E8U) /*!< CAN filter 21 data 0 register */
#define CAN_F22DATA0(canx) REG32((canx) + 0x2F0U) /*!< CAN filter 22 data 0 register */
#define CAN_F23DATA0(canx) REG32((canx) + 0x3F8U) /*!< CAN filter 23 data 0 register */
#define CAN_F24DATA0(canx) REG32((canx) + 0x300U) /*!< CAN filter 24 data 0 register */
#define CAN_F25DATA0(canx) REG32((canx) + 0x308U) /*!< CAN filter 25 data 0 register */
#define CAN_F26DATA0(canx) REG32((canx) + 0x310U) /*!< CAN filter 26 data 0 register */
#define CAN_F27DATA0(canx) REG32((canx) + 0x318U) /*!< CAN filter 27 data 0 register */
#define CAN_F0DATA1(canx) REG32((canx) + 0x244U) /*!< CAN filter 0 data 1 register */
#define CAN_F1DATA1(canx) REG32((canx) + 0x24CU) /*!< CAN filter 1 data 1 register */
#define CAN_F2DATA1(canx) REG32((canx) + 0x254U) /*!< CAN filter 2 data 1 register */
#define CAN_F3DATA1(canx) REG32((canx) + 0x25CU) /*!< CAN filter 3 data 1 register */
#define CAN_F4DATA1(canx) REG32((canx) + 0x264U) /*!< CAN filter 4 data 1 register */
#define CAN_F5DATA1(canx) REG32((canx) + 0x26CU) /*!< CAN filter 5 data 1 register */
#define CAN_F6DATA1(canx) REG32((canx) + 0x274U) /*!< CAN filter 6 data 1 register */
#define CAN_F7DATA1(canx) REG32((canx) + 0x27CU) /*!< CAN filter 7 data 1 register */
#define CAN_F8DATA1(canx) REG32((canx) + 0x284U) /*!< CAN filter 8 data 1 register */
#define CAN_F9DATA1(canx) REG32((canx) + 0x28CU) /*!< CAN filter 9 data 1 register */
#define CAN_F10DATA1(canx) REG32((canx) + 0x294U) /*!< CAN filter 10 data 1 register */
#define CAN_F11DATA1(canx) REG32((canx) + 0x29CU) /*!< CAN filter 11 data 1 register */
#define CAN_F12DATA1(canx) REG32((canx) + 0x2A4U) /*!< CAN filter 12 data 1 register */
#define CAN_F13DATA1(canx) REG32((canx) + 0x2ACU) /*!< CAN filter 13 data 1 register */
#define CAN_F14DATA1(canx) REG32((canx) + 0x2B4U) /*!< CAN filter 14 data 1 register */
#define CAN_F15DATA1(canx) REG32((canx) + 0x2BCU) /*!< CAN filter 15 data 1 register */
#define CAN_F16DATA1(canx) REG32((canx) + 0x2C4U) /*!< CAN filter 16 data 1 register */
#define CAN_F17DATA1(canx) REG32((canx) + 0x24CU) /*!< CAN filter 17 data 1 register */
#define CAN_F18DATA1(canx) REG32((canx) + 0x2D4U) /*!< CAN filter 18 data 1 register */
#define CAN_F19DATA1(canx) REG32((canx) + 0x2DCU) /*!< CAN filter 19 data 1 register */
#define CAN_F20DATA1(canx) REG32((canx) + 0x2E4U) /*!< CAN filter 20 data 1 register */
#define CAN_F21DATA1(canx) REG32((canx) + 0x2ECU) /*!< CAN filter 21 data 1 register */
#define CAN_F22DATA1(canx) REG32((canx) + 0x2F4U) /*!< CAN filter 22 data 1 register */
#define CAN_F23DATA1(canx) REG32((canx) + 0x2FCU) /*!< CAN filter 23 data 1 register */
#define CAN_F24DATA1(canx) REG32((canx) + 0x304U) /*!< CAN filter 24 data 1 register */
#define CAN_F25DATA1(canx) REG32((canx) + 0x30CU) /*!< CAN filter 25 data 1 register */
#define CAN_F26DATA1(canx) REG32((canx) + 0x314U) /*!< CAN filter 26 data 1 register */
#define CAN_F27DATA1(canx) REG32((canx) + 0x31CU) /*!< CAN filter 27 data 1 register */
/* CAN transmit mailbox bank */
#define CAN_TMI(canx, bank) REG32((canx) + 0x180U + ((bank) * 0x10U)) /*!< CAN transmit mailbox identifier register */
#define CAN_TMP(canx, bank) REG32((canx) + 0x184U + ((bank) * 0x10U)) /*!< CAN transmit mailbox property register */
#define CAN_TMDATA0(canx, bank) REG32((canx) + 0x188U + ((bank) * 0x10U)) /*!< CAN transmit mailbox data0 register */
#define CAN_TMDATA1(canx, bank) REG32((canx) + 0x18CU + ((bank) * 0x10U)) /*!< CAN transmit mailbox data1 register */
/* CAN filter bank */
#define CAN_FDATA0(canx, bank) REG32((canx) + 0x240U + ((bank) * 0x8U) + 0x0U) /*!< CAN filter data 0 register */
#define CAN_FDATA1(canx, bank) REG32((canx) + 0x240U + ((bank) * 0x8U) + 0x4U) /*!< CAN filter data 1 register */
/* CAN receive fifo mailbox bank */
#define CAN_RFIFOMI(canx, bank) REG32((canx) + 0x1B0U + ((bank) * 0x10U)) /*!< CAN receive FIFO mailbox identifier register */
#define CAN_RFIFOMP(canx, bank) REG32((canx) + 0x1B4U + ((bank) * 0x10U)) /*!< CAN receive FIFO mailbox property register */
#define CAN_RFIFOMDATA0(canx, bank) REG32((canx) + 0x1B8U + ((bank) * 0x10U)) /*!< CAN receive FIFO mailbox data0 register */
#define CAN_RFIFOMDATA1(canx, bank) REG32((canx) + 0x1BCU + ((bank) * 0x10U)) /*!< CAN receive FIFO mailbox data1 register */
/* bits definitions */
/* CAN_CTL */
#define CAN_CTL_IWMOD BIT(0) /*!< initial working mode */
#define CAN_CTL_SLPWMOD BIT(1) /*!< sleep working mode */
#define CAN_CTL_TFO BIT(2) /*!< transmit FIFO order */
#define CAN_CTL_RFOD BIT(3) /*!< receive FIFO overwrite disable */
#define CAN_CTL_ARD BIT(4) /*!< automatic retransmission disable */
#define CAN_CTL_AWU BIT(5) /*!< automatic wakeup */
#define CAN_CTL_ABOR BIT(6) /*!< automatic bus-off recovery */
#define CAN_CTL_TTC BIT(7) /*!< time triggered communication */
#define CAN_CTL_SWRST BIT(15) /*!< CAN software reset */
#define CAN_CTL_DFZ BIT(16) /*!< CAN debug freeze */
/* CAN_STAT */
#define CAN_STAT_IWS BIT(0) /*!< initial working state */
#define CAN_STAT_SLPWS BIT(1) /*!< sleep working state */
#define CAN_STAT_ERRIF BIT(2) /*!< error interrupt flag*/
#define CAN_STAT_WUIF BIT(3) /*!< status change interrupt flag of wakeup from sleep working mode */
#define CAN_STAT_SLPIF BIT(4) /*!< status change interrupt flag of sleep working mode entering */
#define CAN_STAT_TS BIT(8) /*!< transmitting state */
#define CAN_STAT_RS BIT(9) /*!< receiving state */
#define CAN_STAT_LASTRX BIT(10) /*!< last sample value of rx pin */
#define CAN_STAT_RXL BIT(11) /*!< CAN rx signal */
/* CAN_TSTAT */
#define CAN_TSTAT_MTF0 BIT(0) /*!< mailbox0 transmit finished */
#define CAN_TSTAT_MTFNERR0 BIT(1) /*!< mailbox0 transmit finished and no error */
#define CAN_TSTAT_MAL0 BIT(2) /*!< mailbox0 arbitration lost */
#define CAN_TSTAT_MTE0 BIT(3) /*!< mailbox0 transmit error */
#define CAN_TSTAT_MST0 BIT(7) /*!< mailbox0 stop transmitting */
#define CAN_TSTAT_MTF1 BIT(8) /*!< mailbox1 transmit finished */
#define CAN_TSTAT_MTFNERR1 BIT(9) /*!< mailbox1 transmit finished and no error */
#define CAN_TSTAT_MAL1 BIT(10) /*!< mailbox1 arbitration lost */
#define CAN_TSTAT_MTE1 BIT(11) /*!< mailbox1 transmit error */
#define CAN_TSTAT_MST1 BIT(15) /*!< mailbox1 stop transmitting */
#define CAN_TSTAT_MTF2 BIT(16) /*!< mailbox2 transmit finished */
#define CAN_TSTAT_MTFNERR2 BIT(17) /*!< mailbox2 transmit finished and no error */
#define CAN_TSTAT_MAL2 BIT(18) /*!< mailbox2 arbitration lost */
#define CAN_TSTAT_MTE2 BIT(19) /*!< mailbox2 transmit error */
#define CAN_TSTAT_MST2 BIT(23) /*!< mailbox2 stop transmitting */
#define CAN_TSTAT_NUM BITS(24,25) /*!< mailbox number */
#define CAN_TSTAT_TME0 BIT(26) /*!< transmit mailbox0 empty */
#define CAN_TSTAT_TME1 BIT(27) /*!< transmit mailbox1 empty */
#define CAN_TSTAT_TME2 BIT(28) /*!< transmit mailbox2 empty */
#define CAN_TSTAT_TMLS0 BIT(29) /*!< last sending priority flag for mailbox0 */
#define CAN_TSTAT_TMLS1 BIT(30) /*!< last sending priority flag for mailbox1 */
#define CAN_TSTAT_TMLS2 BIT(31) /*!< last sending priority flag for mailbox2 */
/* CAN_RFIFO0 */
#define CAN_RFIFO0_RFL0 BITS(0,1) /*!< receive FIFO0 length */
#define CAN_RFIFO0_RFF0 BIT(3) /*!< receive FIFO0 full */
#define CAN_RFIFO0_RFO0 BIT(4) /*!< receive FIFO0 overfull */
#define CAN_RFIFO0_RFD0 BIT(5) /*!< receive FIFO0 dequeue */
/* CAN_RFIFO1 */
#define CAN_RFIFO1_RFL1 BITS(0,1) /*!< receive FIFO1 length */
#define CAN_RFIFO1_RFF1 BIT(3) /*!< receive FIFO1 full */
#define CAN_RFIFO1_RFO1 BIT(4) /*!< receive FIFO1 overfull */
#define CAN_RFIFO1_RFD1 BIT(5) /*!< receive FIFO1 dequeue */
/* CAN_INTEN */
#define CAN_INTEN_TMEIE BIT(0) /*!< transmit mailbox empty interrupt enable */
#define CAN_INTEN_RFNEIE0 BIT(1) /*!< receive FIFO0 not empty interrupt enable */
#define CAN_INTEN_RFFIE0 BIT(2) /*!< receive FIFO0 full interrupt enable */
#define CAN_INTEN_RFOIE0 BIT(3) /*!< receive FIFO0 overfull interrupt enable */
#define CAN_INTEN_RFNEIE1 BIT(4) /*!< receive FIFO1 not empty interrupt enable */
#define CAN_INTEN_RFFIE1 BIT(5) /*!< receive FIFO1 full interrupt enable */
#define CAN_INTEN_RFOIE1 BIT(6) /*!< receive FIFO1 overfull interrupt enable */
#define CAN_INTEN_WERRIE BIT(8) /*!< warning error interrupt enable */
#define CAN_INTEN_PERRIE BIT(9) /*!< passive error interrupt enable */
#define CAN_INTEN_BOIE BIT(10) /*!< bus-off interrupt enable */
#define CAN_INTEN_ERRNIE BIT(11) /*!< error number interrupt enable */
#define CAN_INTEN_ERRIE BIT(15) /*!< error interrupt enable */
#define CAN_INTEN_WIE BIT(16) /*!< wakeup interrupt enable */
#define CAN_INTEN_SLPWIE BIT(17) /*!< sleep working interrupt enable */
/* CAN_ERR */
#define CAN_ERR_WERR BIT(0) /*!< warning error */
#define CAN_ERR_PERR BIT(1) /*!< passive error */
#define CAN_ERR_BOERR BIT(2) /*!< bus-off error */
#define CAN_ERR_ERRN BITS(4,6) /*!< error number */
#define CAN_ERR_TECNT BITS(16,23) /*!< transmit error count */
#define CAN_ERR_RECNT BITS(24,31) /*!< receive error count */
/* CAN_BT */
#define CAN_BT_BAUDPSC BITS(0,9) /*!< baudrate prescaler */
#define CAN_BT_BS1 BITS(16,19) /*!< bit segment 1 */
#define CAN_BT_BS2 BITS(20,22) /*!< bit segment 2 */
#define CAN_BT_SJW BITS(24,25) /*!< resynchronization jump width */
#define CAN_BT_LCMOD BIT(30) /*!< loopback communication mode */
#define CAN_BT_SCMOD BIT(31) /*!< silent communication mode */
/* CAN_TMIx */
#define CAN_TMI_TEN BIT(0) /*!< transmit enable */
#define CAN_TMI_FT BIT(1) /*!< frame type */
#define CAN_TMI_FF BIT(2) /*!< frame format */
#define CAN_TMI_EFID BITS(3,31) /*!< the frame identifier */
#define CAN_TMI_SFID BITS(21,31) /*!< the frame identifier */
/* CAN_TMPx */
#define CAN_TMP_DLENC BITS(0,3) /*!< data length code */
#define CAN_TMP_TSEN BIT(8) /*!< time stamp enable */
#define CAN_TMP_TS BITS(16,31) /*!< time stamp */
/* CAN_TMDATA0x */
#define CAN_TMDATA0_DB0 BITS(0,7) /*!< transmit data byte 0 */
#define CAN_TMDATA0_DB1 BITS(8,15) /*!< transmit data byte 1 */
#define CAN_TMDATA0_DB2 BITS(16,23) /*!< transmit data byte 2 */
#define CAN_TMDATA0_DB3 BITS(24,31) /*!< transmit data byte 3 */
/* CAN_TMDATA1x */
#define CAN_TMDATA1_DB4 BITS(0,7) /*!< transmit data byte 4 */
#define CAN_TMDATA1_DB5 BITS(8,15) /*!< transmit data byte 5 */
#define CAN_TMDATA1_DB6 BITS(16,23) /*!< transmit data byte 6 */
#define CAN_TMDATA1_DB7 BITS(24,31) /*!< transmit data byte 7 */
/* CAN_RFIFOMIx */
#define CAN_RFIFOMI_FT BIT(1) /*!< frame type */
#define CAN_RFIFOMI_FF BIT(2) /*!< frame format */
#define CAN_RFIFOMI_EFID BITS(3,31) /*!< the frame identifier */
#define CAN_RFIFOMI_SFID BITS(21,31) /*!< the frame identifier */
/* CAN_RFIFOMPx */
#define CAN_RFIFOMP_DLENC BITS(0,3) /*!< receive data length code */
#define CAN_RFIFOMP_FI BITS(8,15) /*!< filter index */
#define CAN_RFIFOMP_TS BITS(16,31) /*!< time stamp */
/* CAN_RFIFOMDATA0x */
#define CAN_RFIFOMDATA0_DB0 BITS(0,7) /*!< receive data byte 0 */
#define CAN_RFIFOMDATA0_DB1 BITS(8,15) /*!< receive data byte 1 */
#define CAN_RFIFOMDATA0_DB2 BITS(16,23) /*!< receive data byte 2 */
#define CAN_RFIFOMDATA0_DB3 BITS(24,31) /*!< receive data byte 3 */
/* CAN_RFIFOMDATA1x */
#define CAN_RFIFOMDATA1_DB4 BITS(0,7) /*!< receive data byte 4 */
#define CAN_RFIFOMDATA1_DB5 BITS(8,15) /*!< receive data byte 5 */
#define CAN_RFIFOMDATA1_DB6 BITS(16,23) /*!< receive data byte 6 */
#define CAN_RFIFOMDATA1_DB7 BITS(24,31) /*!< receive data byte 7 */
/* CAN_FCTL */
#define CAN_FCTL_FLD BIT(0) /*!< filter lock disable */
#define CAN_FCTL_HBC1F BITS(8,13) /*!< header bank of CAN1 filter */
/* CAN_FMCFG */
#define CAN_FMCFG_FMOD(regval) BIT(regval) /*!< filter mode, list or mask*/
/* CAN_FSCFG */
#define CAN_FSCFG_FS(regval) BIT(regval) /*!< filter scale, 32 bits or 16 bits*/
/* CAN_FAFIFO */
#define CAN_FAFIFOR_FAF(regval) BIT(regval) /*!< filter associated with FIFO */
/* CAN_FW */
#define CAN_FW_FW(regval) BIT(regval) /*!< filter working */
/* CAN_FxDATAy */
#define CAN_FDATA_FD(regval) BIT(regval) /*!< filter data */
/* consts definitions */
/* define the CAN bit position and its register index offset */
#define CAN_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define CAN_REG_VAL(canx, offset) (REG32((canx) + ((uint32_t)(offset) >> 6)))
#define CAN_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
#define CAN_REGIDX_BITS(regidx, bitpos0, bitpos1) (((uint32_t)(regidx) << 12) | ((uint32_t)(bitpos0) << 6) | (uint32_t)(bitpos1))
#define CAN_REG_VALS(canx, offset) (REG32((canx) + ((uint32_t)(offset) >> 12)))
#define CAN_BIT_POS0(val) (((uint32_t)(val) >> 6) & 0x1FU)
#define CAN_BIT_POS1(val) ((uint32_t)(val) & 0x1FU)
/* register offset */
#define STAT_REG_OFFSET ((uint8_t)0x04U) /*!< STAT register offset */
#define TSTAT_REG_OFFSET ((uint8_t)0x08U) /*!< TSTAT register offset */
#define RFIFO0_REG_OFFSET ((uint8_t)0x0CU) /*!< RFIFO0 register offset */
#define RFIFO1_REG_OFFSET ((uint8_t)0x10U) /*!< RFIFO1 register offset */
#define ERR_REG_OFFSET ((uint8_t)0x18U) /*!< ERR register offset */
/* CAN flags */
typedef enum
{
/* flags in STAT register */
CAN_FLAG_RXL = CAN_REGIDX_BIT(STAT_REG_OFFSET, 11U), /*!< RX level */
CAN_FLAG_LASTRX = CAN_REGIDX_BIT(STAT_REG_OFFSET, 10U), /*!< last sample value of RX pin */
CAN_FLAG_RS = CAN_REGIDX_BIT(STAT_REG_OFFSET, 9U), /*!< receiving state */
CAN_FLAG_TS = CAN_REGIDX_BIT(STAT_REG_OFFSET, 8U), /*!< transmitting state */
CAN_FLAG_SLPIF = CAN_REGIDX_BIT(STAT_REG_OFFSET, 4U), /*!< status change flag of entering sleep working mode */
CAN_FLAG_WUIF = CAN_REGIDX_BIT(STAT_REG_OFFSET, 3U), /*!< status change flag of wakeup from sleep working mode */
CAN_FLAG_ERRIF = CAN_REGIDX_BIT(STAT_REG_OFFSET, 2U), /*!< error flag */
CAN_FLAG_SLPWS = CAN_REGIDX_BIT(STAT_REG_OFFSET, 1U), /*!< sleep working state */
CAN_FLAG_IWS = CAN_REGIDX_BIT(STAT_REG_OFFSET, 0U), /*!< initial working state */
/* flags in TSTAT register */
CAN_FLAG_TMLS2 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 31U), /*!< transmit mailbox 2 last sending in Tx FIFO */
CAN_FLAG_TMLS1 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 30U), /*!< transmit mailbox 1 last sending in Tx FIFO */
CAN_FLAG_TMLS0 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 29U), /*!< transmit mailbox 0 last sending in Tx FIFO */
CAN_FLAG_TME2 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 28U), /*!< transmit mailbox 2 empty */
CAN_FLAG_TME1 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 27U), /*!< transmit mailbox 1 empty */
CAN_FLAG_TME0 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 26U), /*!< transmit mailbox 0 empty */
CAN_FLAG_MTE2 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 19U), /*!< mailbox 2 transmit error */
CAN_FLAG_MTE1 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 11U), /*!< mailbox 1 transmit error */
CAN_FLAG_MTE0 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 3U), /*!< mailbox 0 transmit error */
CAN_FLAG_MAL2 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 18U), /*!< mailbox 2 arbitration lost */
CAN_FLAG_MAL1 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 10U), /*!< mailbox 1 arbitration lost */
CAN_FLAG_MAL0 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 2U), /*!< mailbox 0 arbitration lost */
CAN_FLAG_MTFNERR2 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 17U), /*!< mailbox 2 transmit finished with no error */
CAN_FLAG_MTFNERR1 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 9U), /*!< mailbox 1 transmit finished with no error */
CAN_FLAG_MTFNERR0 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 1U), /*!< mailbox 0 transmit finished with no error */
CAN_FLAG_MTF2 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 16U), /*!< mailbox 2 transmit finished */
CAN_FLAG_MTF1 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 8U), /*!< mailbox 1 transmit finished */
CAN_FLAG_MTF0 = CAN_REGIDX_BIT(TSTAT_REG_OFFSET, 0U), /*!< mailbox 0 transmit finished */
/* flags in RFIFO0 register */
CAN_FLAG_RFO0 = CAN_REGIDX_BIT(RFIFO0_REG_OFFSET, 4U), /*!< receive FIFO0 overfull */
CAN_FLAG_RFF0 = CAN_REGIDX_BIT(RFIFO0_REG_OFFSET, 3U), /*!< receive FIFO0 full */
/* flags in RFIFO1 register */
CAN_FLAG_RFO1 = CAN_REGIDX_BIT(RFIFO1_REG_OFFSET, 4U), /*!< receive FIFO1 overfull */
CAN_FLAG_RFF1 = CAN_REGIDX_BIT(RFIFO1_REG_OFFSET, 3U), /*!< receive FIFO1 full */
/* flags in ERR register */
CAN_FLAG_BOERR = CAN_REGIDX_BIT(ERR_REG_OFFSET, 2U), /*!< bus-off error */
CAN_FLAG_PERR = CAN_REGIDX_BIT(ERR_REG_OFFSET, 1U), /*!< passive error */
CAN_FLAG_WERR = CAN_REGIDX_BIT(ERR_REG_OFFSET, 0U), /*!< warning error */
}can_flag_enum;
/* CAN interrupt flags */
typedef enum
{
/* interrupt flags in STAT register */
CAN_INT_FLAG_SLPIF = CAN_REGIDX_BITS(STAT_REG_OFFSET, 4U, 17U), /*!< status change interrupt flag of sleep working mode entering */
CAN_INT_FLAG_WUIF = CAN_REGIDX_BITS(STAT_REG_OFFSET, 3U, 16), /*!< status change interrupt flag of wakeup from sleep working mode */
CAN_INT_FLAG_ERRIF = CAN_REGIDX_BITS(STAT_REG_OFFSET, 2U, 15), /*!< error interrupt flag */
/* interrupt flags in TSTAT register */
CAN_INT_FLAG_MTF2 = CAN_REGIDX_BITS(TSTAT_REG_OFFSET, 16U, 0U), /*!< mailbox 2 transmit finished interrupt flag */
CAN_INT_FLAG_MTF1 = CAN_REGIDX_BITS(TSTAT_REG_OFFSET, 8U, 0U), /*!< mailbox 1 transmit finished interrupt flag */
CAN_INT_FLAG_MTF0 = CAN_REGIDX_BITS(TSTAT_REG_OFFSET, 0U, 0U), /*!< mailbox 0 transmit finished interrupt flag */
/* interrupt flags in RFIFO0 register */
CAN_INT_FLAG_RFO0 = CAN_REGIDX_BITS(RFIFO0_REG_OFFSET, 4U, 3U), /*!< receive FIFO0 overfull interrupt flag */
CAN_INT_FLAG_RFF0 = CAN_REGIDX_BITS(RFIFO0_REG_OFFSET, 3U, 2U), /*!< receive FIFO0 full interrupt flag */
CAN_INT_FLAG_RFL0 = CAN_REGIDX_BITS(RFIFO0_REG_OFFSET, 2U, 1U), /*!< receive FIFO0 not empty interrupt flag */
/* interrupt flags in RFIFO0 register */
CAN_INT_FLAG_RFO1 = CAN_REGIDX_BITS(RFIFO1_REG_OFFSET, 4U, 6U), /*!< receive FIFO1 overfull interrupt flag */
CAN_INT_FLAG_RFF1 = CAN_REGIDX_BITS(RFIFO1_REG_OFFSET, 3U, 5U), /*!< receive FIFO1 full interrupt flag */
CAN_INT_FLAG_RFL1 = CAN_REGIDX_BITS(RFIFO1_REG_OFFSET, 2U, 4U), /*!< receive FIFO0 not empty interrupt flag */
/* interrupt flags in ERR register */
CAN_INT_FLAG_ERRN = CAN_REGIDX_BITS(ERR_REG_OFFSET, 3U, 11U), /*!< error number interrupt flag */
CAN_INT_FLAG_BOERR = CAN_REGIDX_BITS(ERR_REG_OFFSET, 2U, 10U), /*!< bus-off error interrupt flag */
CAN_INT_FLAG_PERR = CAN_REGIDX_BITS(ERR_REG_OFFSET, 1U, 9U), /*!< passive error interrupt flag */
CAN_INT_FLAG_WERR = CAN_REGIDX_BITS(ERR_REG_OFFSET, 0U, 8U), /*!< warning error interrupt flag */
}can_interrupt_flag_enum;
/* CAN initiliaze parameters struct */
typedef struct
{
uint8_t working_mode; /*!< CAN working mode */
uint8_t resync_jump_width; /*!< CAN resynchronization jump width */
uint8_t time_segment_1; /*!< time segment 1 */
uint8_t time_segment_2; /*!< time segment 2 */
ControlStatus time_triggered; /*!< time triggered communication mode */
ControlStatus auto_bus_off_recovery; /*!< automatic bus-off recovery */
ControlStatus auto_wake_up; /*!< automatic wake-up mode */
ControlStatus no_auto_retrans; /*!< automatic retransmission mode disable */
ControlStatus rec_fifo_overwrite; /*!< receive FIFO overwrite mode */
ControlStatus trans_fifo_order; /*!< transmit FIFO order */
uint16_t prescaler; /*!< baudrate prescaler */
}can_parameter_struct;
/* CAN transmit message struct */
typedef struct
{
uint32_t tx_sfid; /*!< standard format frame identifier */
uint32_t tx_efid; /*!< extended format frame identifier */
uint8_t tx_ff; /*!< format of frame, standard or extended format */
uint8_t tx_ft; /*!< type of frame, data or remote */
uint8_t tx_dlen; /*!< data length */
uint8_t tx_data[8]; /*!< transmit data */
}can_trasnmit_message_struct;
/* CAN receive message struct */
typedef struct
{
uint32_t rx_sfid; /*!< standard format frame identifier */
uint32_t rx_efid; /*!< extended format frame identifier */
uint8_t rx_ff; /*!< format of frame, standard or extended format */
uint8_t rx_ft; /*!< type of frame, data or remote */
uint8_t rx_dlen; /*!< data length */
uint8_t rx_data[8]; /*!< receive data */
uint8_t rx_fi; /*!< filtering index */
} can_receive_message_struct;
/* CAN filter parameters struct */
typedef struct
{
uint16_t filter_list_high; /*!< filter list number high bits*/
uint16_t filter_list_low; /*!< filter list number low bits */
uint16_t filter_mask_high; /*!< filter mask number high bits */
uint16_t filter_mask_low; /*!< filter mask number low bits */
uint16_t filter_fifo_number; /*!< receive FIFO associated with the filter */
uint16_t filter_number; /*!< filter number */
uint16_t filter_mode; /*!< filter mode, list or mask */
uint16_t filter_bits; /*!< filter scale */
ControlStatus filter_enable; /*!< filter work or not */
}can_filter_parameter_struct;
/* CAN errors */
typedef enum
{
CAN_ERROR_NONE = 0, /*!< no error */
CAN_ERROR_FILL, /*!< fill error */
CAN_ERROR_FORMATE, /*!< format error */
CAN_ERROR_ACK, /*!< ACK error */
CAN_ERROR_BITRECESSIVE, /*!< bit recessive error */
CAN_ERROR_BITDOMINANTER, /*!< bit dominant error */
CAN_ERROR_CRC, /*!< CRC error */
CAN_ERROR_SOFTWARECFG, /*!< software configure */
}can_error_enum;
/* transmit states */
typedef enum
{
CAN_TRANSMIT_FAILED = 0U, /*!< CAN transmitted failure */
CAN_TRANSMIT_OK = 1U, /*!< CAN transmitted success */
CAN_TRANSMIT_PENDING = 2U, /*!< CAN transmitted pending */
CAN_TRANSMIT_NOMAILBOX = 4U, /*!< no empty mailbox to be used for CAN */
}can_transmit_state_enum;
typedef enum
{
CAN_INIT_STRUCT = 0, /* CAN initiliaze parameters struct */
CAN_FILTER_STRUCT, /* CAN filter parameters struct */
CAN_TX_MESSAGE_STRUCT, /* CAN transmit message struct */
CAN_RX_MESSAGE_STRUCT, /* CAN receive message struct */
}can_struct_type_enum;
/* CAN baudrate prescaler*/
#define BT_BAUDPSC(regval) (BITS(0,9) & ((uint32_t)(regval) << 0))
/* CAN bit segment 1*/
#define BT_BS1(regval) (BITS(16,19) & ((uint32_t)(regval) << 16))
/* CAN bit segment 2*/
#define BT_BS2(regval) (BITS(20,22) & ((uint32_t)(regval) << 20))
/* CAN resynchronization jump width*/
#define BT_SJW(regval) (BITS(24,25) & ((uint32_t)(regval) << 24))
/* CAN communication mode*/
#define BT_MODE(regval) (BITS(30,31) & ((uint32_t)(regval) << 30))
/* CAN FDATA high 16 bits */
#define FDATA_MASK_HIGH(regval) (BITS(16,31) & ((uint32_t)(regval) << 16))
/* CAN FDATA low 16 bits */
#define FDATA_MASK_LOW(regval) (BITS(0,15) & ((uint32_t)(regval) << 0))
/* CAN1 filter start bank_number*/
#define FCTL_HBC1F(regval) (BITS(8,13) & ((uint32_t)(regval) << 8))
/* CAN transmit mailbox extended identifier*/
#define TMI_EFID(regval) (BITS(3,31) & ((uint32_t)(regval) << 3))
/* CAN transmit mailbox standard identifier*/
#define TMI_SFID(regval) (BITS(21,31) & ((uint32_t)(regval) << 21))
/* transmit data byte 0 */
#define TMDATA0_DB0(regval) (BITS(0,7) & ((uint32_t)(regval) << 0))
/* transmit data byte 1 */
#define TMDATA0_DB1(regval) (BITS(8,15) & ((uint32_t)(regval) << 8))
/* transmit data byte 2 */
#define TMDATA0_DB2(regval) (BITS(16,23) & ((uint32_t)(regval) << 16))
/* transmit data byte 3 */
#define TMDATA0_DB3(regval) (BITS(24,31) & ((uint32_t)(regval) << 24))
/* transmit data byte 4 */
#define TMDATA1_DB4(regval) (BITS(0,7) & ((uint32_t)(regval) << 0))
/* transmit data byte 5 */
#define TMDATA1_DB5(regval) (BITS(8,15) & ((uint32_t)(regval) << 8))
/* transmit data byte 6 */
#define TMDATA1_DB6(regval) (BITS(16,23) & ((uint32_t)(regval) << 16))
/* transmit data byte 7 */
#define TMDATA1_DB7(regval) (BITS(24,31) & ((uint32_t)(regval) << 24))
/* receive mailbox extended identifier*/
#define GET_RFIFOMI_EFID(regval) GET_BITS((uint32_t)(regval), 3U, 31U)
/* receive mailbox standrad identifier*/
#define GET_RFIFOMI_SFID(regval) GET_BITS((uint32_t)(regval), 21U, 31U)
/* receive data length */
#define GET_RFIFOMP_DLENC(regval) GET_BITS((uint32_t)(regval), 0U, 3U)
/* the index of the filter by which the frame is passed */
#define GET_RFIFOMP_FI(regval) GET_BITS((uint32_t)(regval), 8U, 15U)
/* receive data byte 0 */
#define GET_RFIFOMDATA0_DB0(regval) GET_BITS((uint32_t)(regval), 0U, 7U)
/* receive data byte 1 */
#define GET_RFIFOMDATA0_DB1(regval) GET_BITS((uint32_t)(regval), 8U, 15U)
/* receive data byte 2 */
#define GET_RFIFOMDATA0_DB2(regval) GET_BITS((uint32_t)(regval), 16U, 23U)
/* receive data byte 3 */
#define GET_RFIFOMDATA0_DB3(regval) GET_BITS((uint32_t)(regval), 24U, 31U)
/* receive data byte 4 */
#define GET_RFIFOMDATA1_DB4(regval) GET_BITS((uint32_t)(regval), 0U, 7U)
/* receive data byte 5 */
#define GET_RFIFOMDATA1_DB5(regval) GET_BITS((uint32_t)(regval), 8U, 15U)
/* receive data byte 6 */
#define GET_RFIFOMDATA1_DB6(regval) GET_BITS((uint32_t)(regval), 16U, 23U)
/* receive data byte 7 */
#define GET_RFIFOMDATA1_DB7(regval) GET_BITS((uint32_t)(regval), 24U, 31U)
/* error number */
#define GET_ERR_ERRN(regval) GET_BITS((uint32_t)(regval), 4U, 6U)
/* transmit error count */
#define GET_ERR_TECNT(regval) GET_BITS((uint32_t)(regval), 16U, 23U)
/* receive error count */
#define GET_ERR_RECNT(regval) GET_BITS((uint32_t)(regval), 24U, 31U)
/* CAN errors */
#define ERR_ERRN(regval) (BITS(4,6) & ((uint32_t)(regval) << 4))
#define CAN_ERRN_0 ERR_ERRN(0U) /* no error */
#define CAN_ERRN_1 ERR_ERRN(1U) /*!< fill error */
#define CAN_ERRN_2 ERR_ERRN(2U) /*!< format error */
#define CAN_ERRN_3 ERR_ERRN(3U) /*!< ACK error */
#define CAN_ERRN_4 ERR_ERRN(4U) /*!< bit recessive error */
#define CAN_ERRN_5 ERR_ERRN(5U) /*!< bit dominant error */
#define CAN_ERRN_6 ERR_ERRN(6U) /*!< CRC error */
#define CAN_ERRN_7 ERR_ERRN(7U) /*!< software error */
#define CAN_STATE_PENDING ((uint32_t)0x00000000U) /*!< CAN pending */
/* CAN communication mode */
#define CAN_NORMAL_MODE ((uint8_t)0x00U) /*!< normal communication mode */
#define CAN_LOOPBACK_MODE ((uint8_t)0x01U) /*!< loopback communication mode */
#define CAN_SILENT_MODE ((uint8_t)0x02U) /*!< silent communication mode */
#define CAN_SILENT_LOOPBACK_MODE ((uint8_t)0x03U) /*!< loopback and silent communication mode */
/* CAN resynchronisation jump width */
#define CAN_BT_SJW_1TQ ((uint8_t)0x00U) /*!< 1 time quanta */
#define CAN_BT_SJW_2TQ ((uint8_t)0x01U) /*!< 2 time quanta */
#define CAN_BT_SJW_3TQ ((uint8_t)0x02U) /*!< 3 time quanta */
#define CAN_BT_SJW_4TQ ((uint8_t)0x03U) /*!< 4 time quanta */
/* CAN time segment 1 */
#define CAN_BT_BS1_1TQ ((uint8_t)0x00U) /*!< 1 time quanta */
#define CAN_BT_BS1_2TQ ((uint8_t)0x01U) /*!< 2 time quanta */
#define CAN_BT_BS1_3TQ ((uint8_t)0x02U) /*!< 3 time quanta */
#define CAN_BT_BS1_4TQ ((uint8_t)0x03U) /*!< 4 time quanta */
#define CAN_BT_BS1_5TQ ((uint8_t)0x04U) /*!< 5 time quanta */
#define CAN_BT_BS1_6TQ ((uint8_t)0x05U) /*!< 6 time quanta */
#define CAN_BT_BS1_7TQ ((uint8_t)0x06U) /*!< 7 time quanta */
#define CAN_BT_BS1_8TQ ((uint8_t)0x07U) /*!< 8 time quanta */
#define CAN_BT_BS1_9TQ ((uint8_t)0x08U) /*!< 9 time quanta */
#define CAN_BT_BS1_10TQ ((uint8_t)0x09U) /*!< 10 time quanta */
#define CAN_BT_BS1_11TQ ((uint8_t)0x0AU) /*!< 11 time quanta */
#define CAN_BT_BS1_12TQ ((uint8_t)0x0BU) /*!< 12 time quanta */
#define CAN_BT_BS1_13TQ ((uint8_t)0x0CU) /*!< 13 time quanta */
#define CAN_BT_BS1_14TQ ((uint8_t)0x0DU) /*!< 14 time quanta */
#define CAN_BT_BS1_15TQ ((uint8_t)0x0EU) /*!< 15 time quanta */
#define CAN_BT_BS1_16TQ ((uint8_t)0x0FU) /*!< 16 time quanta */
/* CAN time segment 2 */
#define CAN_BT_BS2_1TQ ((uint8_t)0x00U) /*!< 1 time quanta */
#define CAN_BT_BS2_2TQ ((uint8_t)0x01U) /*!< 2 time quanta */
#define CAN_BT_BS2_3TQ ((uint8_t)0x02U) /*!< 3 time quanta */
#define CAN_BT_BS2_4TQ ((uint8_t)0x03U) /*!< 4 time quanta */
#define CAN_BT_BS2_5TQ ((uint8_t)0x04U) /*!< 5 time quanta */
#define CAN_BT_BS2_6TQ ((uint8_t)0x05U) /*!< 6 time quanta */
#define CAN_BT_BS2_7TQ ((uint8_t)0x06U) /*!< 7 time quanta */
#define CAN_BT_BS2_8TQ ((uint8_t)0x07U) /*!< 8 time quanta */
/* CAN mailbox number */
#define CAN_MAILBOX0 ((uint8_t)0x00U) /*!< mailbox0 */
#define CAN_MAILBOX1 ((uint8_t)0x01U) /*!< mailbox1 */
#define CAN_MAILBOX2 ((uint8_t)0x02U) /*!< mailbox2 */
#define CAN_NOMAILBOX ((uint8_t)0x03U) /*!< no mailbox empty */
/* CAN frame format */
#define CAN_FF_STANDARD ((uint32_t)0x00000000U) /*!< standard frame */
#define CAN_FF_EXTENDED ((uint32_t)0x00000004U) /*!< extended frame */
/* CAN receive fifo */
#define CAN_FIFO0 ((uint8_t)0x00U) /*!< receive FIFO0 */
#define CAN_FIFO1 ((uint8_t)0x01U) /*!< receive FIFO1 */
/* frame number of receive fifo */
#define CAN_RFIF_RFL_MASK ((uint32_t)0x00000003U) /*!< mask for frame number in receive FIFOx */
#define CAN_SFID_MASK ((uint32_t)0x000007FFU) /*!< mask of standard identifier */
#define CAN_EFID_MASK ((uint32_t)0x1FFFFFFFU) /*!< mask of extended identifier */
/* CAN working mode */
#define CAN_MODE_INITIALIZE ((uint8_t)0x01U) /*!< CAN initialize mode */
#define CAN_MODE_NORMAL ((uint8_t)0x02U) /*!< CAN normal mode */
#define CAN_MODE_SLEEP ((uint8_t)0x04U) /*!< CAN sleep mode */
/* filter bits */
#define CAN_FILTERBITS_16BIT ((uint8_t)0x00U) /*!< CAN filter 16 bits */
#define CAN_FILTERBITS_32BIT ((uint8_t)0x01U) /*!< CAN filter 32 bits */
/* filter mode */
#define CAN_FILTERMODE_MASK ((uint8_t)0x00U) /*!< mask mode */
#define CAN_FILTERMODE_LIST ((uint8_t)0x01U) /*!< list mode */
/* filter 16 bits mask */
#define CAN_FILTER_MASK_16BITS ((uint32_t)0x0000FFFFU) /*!< can filter 16 bits mask */
/* frame type */
#define CAN_FT_DATA ((uint32_t)0x00000000U) /*!< data frame */
#define CAN_FT_REMOTE ((uint32_t)0x00000002U) /*!< remote frame */
/* CAN timeout */
#define CAN_TIMEOUT ((uint32_t)0x0000FFFFU) /*!< timeout value */
/* interrupt enable bits */
#define CAN_INT_TME CAN_INTEN_TMEIE /*!< transmit mailbox empty interrupt enable */
#define CAN_INT_RFNE0 CAN_INTEN_RFNEIE0 /*!< receive FIFO0 not empty interrupt enable */
#define CAN_INT_RFF0 CAN_INTEN_RFFIE0 /*!< receive FIFO0 full interrupt enable */
#define CAN_INT_RFO0 CAN_INTEN_RFOIE0 /*!< receive FIFO0 overfull interrupt enable */
#define CAN_INT_RFNE1 CAN_INTEN_RFNEIE1 /*!< receive FIFO1 not empty interrupt enable */
#define CAN_INT_RFF1 CAN_INTEN_RFFIE1 /*!< receive FIFO1 full interrupt enable */
#define CAN_INT_RFO1 CAN_INTEN_RFOIE1 /*!< receive FIFO1 overfull interrupt enable */
#define CAN_INT_WERR CAN_INTEN_WERRIE /*!< warning error interrupt enable */
#define CAN_INT_PERR CAN_INTEN_PERRIE /*!< passive error interrupt enable */
#define CAN_INT_BO CAN_INTEN_BOIE /*!< bus-off interrupt enable */
#define CAN_INT_ERRN CAN_INTEN_ERRNIE /*!< error number interrupt enable */
#define CAN_INT_ERR CAN_INTEN_ERRIE /*!< error interrupt enable */
#define CAN_INT_WAKEUP CAN_INTEN_WIE /*!< wakeup interrupt enable */
#define CAN_INT_SLPW CAN_INTEN_SLPWIE /*!< sleep working interrupt enable */
/* function declarations */
/* deinitialize CAN */
void can_deinit(uint32_t can_periph);
/* initialize CAN struct */
void can_struct_para_init(can_struct_type_enum type, void* p_struct);
/* initialize CAN */
ErrStatus can_init(uint32_t can_periph, can_parameter_struct* can_parameter_init);
/* CAN filter init */
void can_filter_init(can_filter_parameter_struct* can_filter_parameter_init);
/* set can1 fliter start bank number */
void can1_filter_start_bank(uint8_t start_bank);
/* enable functions */
/* CAN debug freeze enable */
void can_debug_freeze_enable(uint32_t can_periph);
/* CAN debug freeze disable */
void can_debug_freeze_disable(uint32_t can_periph);
/* CAN time trigger mode enable */
void can_time_trigger_mode_enable(uint32_t can_periph);
/* CAN time trigger mode disable */
void can_time_trigger_mode_disable(uint32_t can_periph);
/* transmit functions */
/* transmit CAN message */
uint8_t can_message_transmit(uint32_t can_periph, can_trasnmit_message_struct* transmit_message);
/* get CAN transmit state */
can_transmit_state_enum can_transmit_states(uint32_t can_periph, uint8_t mailbox_number);
/* stop CAN transmission */
void can_transmission_stop(uint32_t can_periph, uint8_t mailbox_number);
/* CAN receive message */
void can_message_receive(uint32_t can_periph, uint8_t fifo_number, can_receive_message_struct* receive_message);
/* CAN release fifo */
void can_fifo_release(uint32_t can_periph, uint8_t fifo_number);
/* CAN receive message length */
uint8_t can_receive_message_length_get(uint32_t can_periph, uint8_t fifo_number);
/* CAN working mode */
ErrStatus can_working_mode_set(uint32_t can_periph, uint8_t working_mode);
/* CAN wakeup from sleep mode */
ErrStatus can_wakeup(uint32_t can_periph);
/* CAN get error */
can_error_enum can_error_get(uint32_t can_periph);
/* get CAN receive error number */
uint8_t can_receive_error_number_get(uint32_t can_periph);
/* get CAN transmit error number */
uint8_t can_transmit_error_number_get(uint32_t can_periph);
/* CAN interrupt enable */
void can_interrupt_enable(uint32_t can_periph, uint32_t interrupt);
/* CAN interrupt disable */
void can_interrupt_disable(uint32_t can_periph, uint32_t interrupt);
/* CAN get flag state */
FlagStatus can_flag_get(uint32_t can_periph, can_flag_enum flag);
/* CAN clear flag state */
void can_flag_clear(uint32_t can_periph, can_flag_enum flag);
/* CAN get interrupt flag state */
FlagStatus can_interrupt_flag_get(uint32_t can_periph, can_interrupt_flag_enum flag);
/* CAN clear interrupt flag state */
void can_interrupt_flag_clear(uint32_t can_periph, can_interrupt_flag_enum flag);
#endif /* GD32VF103_CAN_H */

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/*!
\file gd32vf103_crc.h
\brief definitions for the CRC
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_CRC_H
#define GD32VF103_CRC_H
#include "gd32vf103.h"
/* CRC definitions */
#define CRC CRC_BASE
/* registers definitions */
#define CRC_DATA REG32(CRC + 0x00U) /*!< CRC data register */
#define CRC_FDATA REG32(CRC + 0x04U) /*!< CRC free data register */
#define CRC_CTL REG32(CRC + 0x08U) /*!< CRC control register */
/* bits definitions */
/* CRC_DATA */
#define CRC_DATA_DATA BITS(0, 31) /*!< CRC calculation result bits */
/* CRC_FDATA */
#define CRC_FDATA_FDATA BITS(0, 7) /*!< CRC free data bits */
/* CRC_CTL */
#define CRC_CTL_RST BIT(0) /*!< CRC reset CRC_DATA register bit */
/* function declarations */
/* deinit CRC calculation unit */
void crc_deinit(void);
/* reset data register(CRC_DATA) to the value of 0xFFFFFFFF */
void crc_data_register_reset(void);
/* read the value of the data register */
uint32_t crc_data_register_read(void);
/* read the value of the free data register */
uint8_t crc_free_data_register_read(void);
/* write data to the free data register */
void crc_free_data_register_write(uint8_t free_data);
/* calculate the CRC value of a 32-bit data */
uint32_t crc_single_data_calculate(uint32_t sdata);
/* calculate the CRC value of an array of 32-bit values */
uint32_t crc_block_data_calculate(uint32_t array[], uint32_t size);
#endif /* GD32VF103_CRC_H */

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/*!
\file gd32vf103_dac.h
\brief definitions for the DAC
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_DAC_H
#define GD32VF103_DAC_H
#include "gd32vf103.h"
/* DACx(x=0,1) definitions */
#define DAC DAC_BASE
#define DAC0 (0U)
#define DAC1 (1U)
/* registers definitions */
#define DAC_CTL REG32(DAC + 0x00U) /*!< DAC control register */
#define DAC_SWT REG32(DAC + 0x04U) /*!< DAC software trigger register */
#define DAC0_R12DH REG32(DAC + 0x08U) /*!< DAC0 12-bit right-aligned data holding register */
#define DAC0_L12DH REG32(DAC + 0x0CU) /*!< DAC0 12-bit left-aligned data holding register */
#define DAC0_R8DH REG32(DAC + 0x10U) /*!< DAC0 8-bit right-aligned data holding register */
#define DAC1_R12DH REG32(DAC + 0x14U) /*!< DAC1 12-bit right-aligned data holding register */
#define DAC1_L12DH REG32(DAC + 0x18U) /*!< DAC1 12-bit left-aligned data holding register */
#define DAC1_R8DH REG32(DAC + 0x1CU) /*!< DAC1 8-bit right-aligned data holding register */
#define DACC_R12DH REG32(DAC + 0x20U) /*!< DAC concurrent mode 12-bit right-aligned data holding register */
#define DACC_L12DH REG32(DAC + 0x24U) /*!< DAC concurrent mode 12-bit left-aligned data holding register */
#define DACC_R8DH REG32(DAC + 0x28U) /*!< DAC concurrent mode 8-bit right-aligned data holding register */
#define DAC0_DO REG32(DAC + 0x2CU) /*!< DAC0 data output register */
#define DAC1_DO REG32(DAC + 0x30U) /*!< DAC1 data output register */
/* bits definitions */
/* DAC_CTL */
#define DAC_CTL_DEN0 BIT(0) /*!< DAC0 enable/disable bit */
#define DAC_CTL_DBOFF0 BIT(1) /*!< DAC0 output buffer turn on/turn off bit */
#define DAC_CTL_DTEN0 BIT(2) /*!< DAC0 trigger enable/disable bit */
#define DAC_CTL_DTSEL0 BITS(3,5) /*!< DAC0 trigger source selection enable/disable bits */
#define DAC_CTL_DWM0 BITS(6,7) /*!< DAC0 noise wave mode */
#define DAC_CTL_DWBW0 BITS(8,11) /*!< DAC0 noise wave bit width */
#define DAC_CTL_DDMAEN0 BIT(12) /*!< DAC0 DMA enable/disable bit */
#define DAC_CTL_DEN1 BIT(16) /*!< DAC1 enable/disable bit */
#define DAC_CTL_DBOFF1 BIT(17) /*!< DAC1 output buffer turn on/turn off bit */
#define DAC_CTL_DTEN1 BIT(18) /*!< DAC1 trigger enable/disable bit */
#define DAC_CTL_DTSEL1 BITS(19,21) /*!< DAC1 trigger source selection enable/disable bits */
#define DAC_CTL_DWM1 BITS(22,23) /*!< DAC1 noise wave mode */
#define DAC_CTL_DWBW1 BITS(24,27) /*!< DAC1 noise wave bit width */
#define DAC_CTL_DDMAEN1 BIT(28) /*!< DAC1 DMA enable/disable bit */
/* DAC_SWT */
#define DAC_SWT_SWTR0 BIT(0) /*!< DAC0 software trigger bit, cleared by hardware */
#define DAC_SWT_SWTR1 BIT(1) /*!< DAC1 software trigger bit, cleared by hardware */
/* DAC0_R12DH */
#define DAC0_R12DH_DAC0_DH BITS(0,11) /*!< DAC0 12-bit right-aligned data bits */
/* DAC0_L12DH */
#define DAC0_L12DH_DAC0_DH BITS(4,15) /*!< DAC0 12-bit left-aligned data bits */
/* DAC0_R8DH */
#define DAC0_R8DH_DAC0_DH BITS(0,7) /*!< DAC0 8-bit right-aligned data bits */
/* DAC1_R12DH */
#define DAC1_R12DH_DAC1_DH BITS(0,11) /*!< DAC1 12-bit right-aligned data bits */
/* DAC1_L12DH */
#define DAC1_L12DH_DAC1_DH BITS(4,15) /*!< DAC1 12-bit left-aligned data bits */
/* DAC1_R8DH */
#define DAC1_R8DH_DAC1_DH BITS(0,7) /*!< DAC1 8-bit right-aligned data bits */
/* DACC_R12DH */
#define DACC_R12DH_DAC0_DH BITS(0,11) /*!< DAC concurrent mode DAC0 12-bit right-aligned data bits */
#define DACC_R12DH_DAC1_DH BITS(16,27) /*!< DAC concurrent mode DAC1 12-bit right-aligned data bits */
/* DACC_L12DH */
#define DACC_L12DH_DAC0_DH BITS(4,15) /*!< DAC concurrent mode DAC0 12-bit left-aligned data bits */
#define DACC_L12DH_DAC1_DH BITS(20,31) /*!< DAC concurrent mode DAC1 12-bit left-aligned data bits */
/* DACC_R8DH */
#define DACC_R8DH_DAC0_DH BITS(0,7) /*!< DAC concurrent mode DAC0 8-bit right-aligned data bits */
#define DACC_R8DH_DAC1_DH BITS(8,15) /*!< DAC concurrent mode DAC1 8-bit right-aligned data bits */
/* DAC0_DO */
#define DAC0_DO_DAC0_DO BITS(0,11) /*!< DAC0 12-bit output data bits */
/* DAC1_DO */
#define DAC1_DO_DAC1_DO BITS(0,11) /*!< DAC1 12-bit output data bits */
/* constants definitions */
/* DAC trigger source */
#define CTL_DTSEL(regval) (BITS(3,5) & ((uint32_t)(regval) << 3))
#define DAC_TRIGGER_T5_TRGO CTL_DTSEL(0) /*!< TIMER5 TRGO */
#define DAC_TRIGGER_T2_TRGO CTL_DTSEL(1) /*!< TIMER2 TRGO */
#define DAC_TRIGGER_T6_TRGO CTL_DTSEL(2) /*!< TIMER6 TRGO */
#define DAC_TRIGGER_T4_TRGO CTL_DTSEL(3) /*!< TIMER4 TRGO */
#define DAC_TRIGGER_T1_TRGO CTL_DTSEL(4) /*!< TIMER1 TRGO */
#define DAC_TRIGGER_T3_TRGO CTL_DTSEL(5) /*!< TIMER3 TRGO */
#define DAC_TRIGGER_EXTI_9 CTL_DTSEL(6) /*!< EXTI interrupt line9 event */
#define DAC_TRIGGER_SOFTWARE CTL_DTSEL(7) /*!< software trigger */
/* DAC noise wave mode */
#define CTL_DWM(regval) (BITS(6,7) & ((uint32_t)(regval) << 6))
#define DAC_WAVE_DISABLE CTL_DWM(0) /*!< wave disable */
#define DAC_WAVE_MODE_LFSR CTL_DWM(1) /*!< LFSR noise mode */
#define DAC_WAVE_MODE_TRIANGLE CTL_DWM(2) /*!< triangle noise mode */
/* DAC noise wave bit width */
#define DWBW(regval) (BITS(8,11) & ((uint32_t)(regval) << 8))
#define DAC_WAVE_BIT_WIDTH_1 DWBW(0) /*!< bit width of the wave signal is 1 */
#define DAC_WAVE_BIT_WIDTH_2 DWBW(1) /*!< bit width of the wave signal is 2 */
#define DAC_WAVE_BIT_WIDTH_3 DWBW(2) /*!< bit width of the wave signal is 3 */
#define DAC_WAVE_BIT_WIDTH_4 DWBW(3) /*!< bit width of the wave signal is 4 */
#define DAC_WAVE_BIT_WIDTH_5 DWBW(4) /*!< bit width of the wave signal is 5 */
#define DAC_WAVE_BIT_WIDTH_6 DWBW(5) /*!< bit width of the wave signal is 6 */
#define DAC_WAVE_BIT_WIDTH_7 DWBW(6) /*!< bit width of the wave signal is 7 */
#define DAC_WAVE_BIT_WIDTH_8 DWBW(7) /*!< bit width of the wave signal is 8 */
#define DAC_WAVE_BIT_WIDTH_9 DWBW(8) /*!< bit width of the wave signal is 9 */
#define DAC_WAVE_BIT_WIDTH_10 DWBW(9) /*!< bit width of the wave signal is 10 */
#define DAC_WAVE_BIT_WIDTH_11 DWBW(10) /*!< bit width of the wave signal is 11 */
#define DAC_WAVE_BIT_WIDTH_12 DWBW(11) /*!< bit width of the wave signal is 12 */
/* unmask LFSR bits in DAC LFSR noise mode */
#define DAC_LFSR_BIT0 DAC_WAVE_BIT_WIDTH_1 /*!< unmask the LFSR bit0 */
#define DAC_LFSR_BITS1_0 DAC_WAVE_BIT_WIDTH_2 /*!< unmask the LFSR bits[1:0] */
#define DAC_LFSR_BITS2_0 DAC_WAVE_BIT_WIDTH_3 /*!< unmask the LFSR bits[2:0] */
#define DAC_LFSR_BITS3_0 DAC_WAVE_BIT_WIDTH_4 /*!< unmask the LFSR bits[3:0] */
#define DAC_LFSR_BITS4_0 DAC_WAVE_BIT_WIDTH_5 /*!< unmask the LFSR bits[4:0] */
#define DAC_LFSR_BITS5_0 DAC_WAVE_BIT_WIDTH_6 /*!< unmask the LFSR bits[5:0] */
#define DAC_LFSR_BITS6_0 DAC_WAVE_BIT_WIDTH_7 /*!< unmask the LFSR bits[6:0] */
#define DAC_LFSR_BITS7_0 DAC_WAVE_BIT_WIDTH_8 /*!< unmask the LFSR bits[7:0] */
#define DAC_LFSR_BITS8_0 DAC_WAVE_BIT_WIDTH_9 /*!< unmask the LFSR bits[8:0] */
#define DAC_LFSR_BITS9_0 DAC_WAVE_BIT_WIDTH_10 /*!< unmask the LFSR bits[9:0] */
#define DAC_LFSR_BITS10_0 DAC_WAVE_BIT_WIDTH_11 /*!< unmask the LFSR bits[10:0] */
#define DAC_LFSR_BITS11_0 DAC_WAVE_BIT_WIDTH_12 /*!< unmask the LFSR bits[11:0] */
/* DAC data alignment */
#define DATA_ALIGN(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define DAC_ALIGN_12B_R DATA_ALIGN(0) /*!< data right 12b alignment */
#define DAC_ALIGN_12B_L DATA_ALIGN(1) /*!< data left 12b alignment */
#define DAC_ALIGN_8B_R DATA_ALIGN(2) /*!< data right 8b alignment */
/* triangle amplitude in DAC triangle noise mode */
#define DAC_TRIANGLE_AMPLITUDE_1 DAC_WAVE_BIT_WIDTH_1 /*!< triangle amplitude is 1 */
#define DAC_TRIANGLE_AMPLITUDE_3 DAC_WAVE_BIT_WIDTH_2 /*!< triangle amplitude is 3 */
#define DAC_TRIANGLE_AMPLITUDE_7 DAC_WAVE_BIT_WIDTH_3 /*!< triangle amplitude is 7 */
#define DAC_TRIANGLE_AMPLITUDE_15 DAC_WAVE_BIT_WIDTH_4 /*!< triangle amplitude is 15 */
#define DAC_TRIANGLE_AMPLITUDE_31 DAC_WAVE_BIT_WIDTH_5 /*!< triangle amplitude is 31 */
#define DAC_TRIANGLE_AMPLITUDE_63 DAC_WAVE_BIT_WIDTH_6 /*!< triangle amplitude is 63 */
#define DAC_TRIANGLE_AMPLITUDE_127 DAC_WAVE_BIT_WIDTH_7 /*!< triangle amplitude is 127 */
#define DAC_TRIANGLE_AMPLITUDE_255 DAC_WAVE_BIT_WIDTH_8 /*!< triangle amplitude is 255 */
#define DAC_TRIANGLE_AMPLITUDE_511 DAC_WAVE_BIT_WIDTH_9 /*!< triangle amplitude is 511 */
#define DAC_TRIANGLE_AMPLITUDE_1023 DAC_WAVE_BIT_WIDTH_10 /*!< triangle amplitude is 1023 */
#define DAC_TRIANGLE_AMPLITUDE_2047 DAC_WAVE_BIT_WIDTH_11 /*!< triangle amplitude is 2047 */
#define DAC_TRIANGLE_AMPLITUDE_4095 DAC_WAVE_BIT_WIDTH_12 /*!< triangle amplitude is 4095 */
/* function declarations */
/* initialization functions */
/* deinitialize DAC */
void dac_deinit(void);
/* enable DAC */
void dac_enable(uint32_t dac_periph);
/* disable DAC */
void dac_disable(uint32_t dac_periph);
/* enable DAC DMA */
void dac_dma_enable(uint32_t dac_periph);
/* disable DAC DMA */
void dac_dma_disable(uint32_t dac_periph);
/* enable DAC output buffer */
void dac_output_buffer_enable(uint32_t dac_periph);
/* disable DAC output buffer */
void dac_output_buffer_disable(uint32_t dac_periph);
/* get the last data output value */
uint16_t dac_output_value_get(uint32_t dac_periph);
/* set DAC data holding register value */
void dac_data_set(uint32_t dac_periph, uint32_t dac_align, uint16_t data);
/* DAC trigger configuration */
/* enable DAC trigger */
void dac_trigger_enable(uint32_t dac_periph);
/* disable DAC trigger */
void dac_trigger_disable(uint32_t dac_periph);
/* configure DAC trigger source */
void dac_trigger_source_config(uint32_t dac_periph, uint32_t triggersource);
/* enable DAC software trigger */
void dac_software_trigger_enable(uint32_t dac_periph);
/* disable DAC software trigger */
void dac_software_trigger_disable(uint32_t dac_periph);
/* DAC wave mode configuration */
/* configure DAC wave mode */
void dac_wave_mode_config(uint32_t dac_periph, uint32_t wave_mode);
/* configure DAC wave bit width */
void dac_wave_bit_width_config(uint32_t dac_periph, uint32_t bit_width);
/* configure DAC LFSR noise mode */
void dac_lfsr_noise_config(uint32_t dac_periph, uint32_t unmask_bits);
/* configure DAC triangle noise mode */
void dac_triangle_noise_config(uint32_t dac_periph, uint32_t amplitude);
/* DAC concurrent mode configuration */
/* enable DAC concurrent mode */
void dac_concurrent_enable(void);
/* disable DAC concurrent mode */
void dac_concurrent_disable(void);
/* enable DAC concurrent software trigger */
void dac_concurrent_software_trigger_enable(void);
/* disable DAC concurrent software trigger */
void dac_concurrent_software_trigger_disable(void);
/* enable DAC concurrent buffer function */
void dac_concurrent_output_buffer_enable(void);
/* disable DAC concurrent buffer function */
void dac_concurrent_output_buffer_disable(void);
/* set DAC concurrent mode data holding register value */
void dac_concurrent_data_set(uint32_t dac_align, uint16_t data0, uint16_t data1);
#endif /* GD32VF103_DAC_H */

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/*!
\file gd32vf103_dbg.h
\brief definitions for the DBG
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_DBG_H
#define GD32VF103_DBG_H
#include "gd32vf103.h"
/* DBG definitions */
#define DBG DBG_BASE
/* registers definitions */
#define DBG_ID REG32(DBG + 0x00U) /*!< DBG_ID code register */
#define DBG_CTL REG32(DBG + 0x04U) /*!< DBG control register */
/* bits definitions */
/* DBG_ID */
#define DBG_ID_ID_CODE BITS(0,31) /*!< DBG ID code values */
/* DBG_CTL */
#define DBG_CTL_SLP_HOLD BIT(0) /*!< keep debugger connection during sleep mode */
#define DBG_CTL_DSLP_HOLD BIT(1) /*!< keep debugger connection during deepsleep mode */
#define DBG_CTL_STB_HOLD BIT(2) /*!< keep debugger connection during standby mode */
#define DBG_CTL_FWDGT_HOLD BIT(8) /*!< debug FWDGT kept when core is halted */
#define DBG_CTL_WWDGT_HOLD BIT(9) /*!< debug WWDGT kept when core is halted */
#define DBG_CTL_TIMER0_HOLD BIT(10) /*!< hold TIMER0 counter when core is halted */
#define DBG_CTL_TIMER1_HOLD BIT(11) /*!< hold TIMER1 counter when core is halted */
#define DBG_CTL_TIMER2_HOLD BIT(12) /*!< hold TIMER2 counter when core is halted */
#define DBG_CTL_TIMER3_HOLD BIT(13) /*!< hold TIMER3 counter when core is halted */
#define DBG_CTL_CAN0_HOLD BIT(14) /*!< debug CAN0 kept when core is halted */
#define DBG_CTL_I2C0_HOLD BIT(15) /*!< hold I2C0 smbus when core is halted */
#define DBG_CTL_I2C1_HOLD BIT(16) /*!< hold I2C1 smbus when core is halted */
#define DBG_CTL_TIMER4_HOLD BIT(18) /*!< hold TIMER4 counter when core is halted */
#define DBG_CTL_TIMER5_HOLD BIT(19) /*!< hold TIMER5 counter when core is halted */
#define DBG_CTL_TIMER6_HOLD BIT(20) /*!< hold TIMER6 counter when core is halted */
#define DBG_CTL_CAN1_HOLD BIT(21) /*!< debug CAN1 kept when core is halted */
/* constants definitions */
/* debug hold when core is halted */
typedef enum
{
DBG_FWDGT_HOLD = BIT(8), /*!< debug FWDGT kept when core is halted */
DBG_WWDGT_HOLD = BIT(9), /*!< debug WWDGT kept when core is halted */
DBG_TIMER0_HOLD = BIT(10), /*!< hold TIMER0 counter when core is halted */
DBG_TIMER1_HOLD = BIT(11), /*!< hold TIMER1 counter when core is halted */
DBG_TIMER2_HOLD = BIT(12), /*!< hold TIMER2 counter when core is halted */
DBG_TIMER3_HOLD = BIT(13), /*!< hold TIMER3 counter when core is halted */
DBG_CAN0_HOLD = BIT(14), /*!< debug CAN0 kept when core is halted */
DBG_I2C0_HOLD = BIT(15), /*!< hold I2C0 smbus when core is halted */
DBG_I2C1_HOLD = BIT(16), /*!< hold I2C1 smbus when core is halted */
DBG_TIMER4_HOLD = BIT(17), /*!< hold TIMER4 counter when core is halted */
DBG_TIMER5_HOLD = BIT(18), /*!< hold TIMER5 counter when core is halted */
DBG_TIMER6_HOLD = BIT(19), /*!< hold TIMER6 counter when core is halted */
DBG_CAN1_HOLD = BIT(21), /*!< debug CAN1 kept when core is halted */
}dbg_periph_enum;
/* DBG low power mode configurations */
#define DBG_LOW_POWER_SLEEP DBG_CTL_SLP_HOLD /*!< keep debugger connection during sleep mode */
#define DBG_LOW_POWER_DEEPSLEEP DBG_CTL_DSLP_HOLD /*!< keep debugger connection during deepsleep mode */
#define DBG_LOW_POWER_STANDBY DBG_CTL_STB_HOLD /*!< keep debugger connection during standby mode */
/* function declarations */
/* read DBG_ID code register */
uint32_t dbg_id_get(void);
/* low power behavior configuration */
/* enable low power behavior when the MCU is in debug mode */
void dbg_low_power_enable(uint32_t dbg_low_power);
/* disable low power behavior when the MCU is in debug mode */
void dbg_low_power_disable(uint32_t dbg_low_power);
/* peripheral behavior configuration */
/* enable peripheral behavior when the MCU is in debug mode */
void dbg_periph_enable(dbg_periph_enum dbg_periph);
/* disable peripheral behavior when the MCU is in debug mode */
void dbg_periph_disable(dbg_periph_enum dbg_periph);
#endif /* GD32VF103_DBG_H */

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/*!
\file gd32vf103_dma.h
\brief definitions for the DMA
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-10-30, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_DMA_H
#define GD32VF103_DMA_H
#include "gd32vf103.h"
/* DMA definitions */
#define DMA0 (DMA_BASE) /*!< DMA0 base address */
#define DMA1 (DMA_BASE + 0x0400U) /*!< DMA1 base address */
/* registers definitions */
#define DMA_INTF(dmax) REG32((dmax) + 0x00U) /*!< DMA interrupt flag register */
#define DMA_INTC(dmax) REG32((dmax) + 0x04U) /*!< DMA interrupt flag clear register */
#define DMA_CH0CTL(dmax) REG32((dmax) + 0x08U) /*!< DMA channel 0 control register */
#define DMA_CH0CNT(dmax) REG32((dmax) + 0x0CU) /*!< DMA channel 0 counter register */
#define DMA_CH0PADDR(dmax) REG32((dmax) + 0x10U) /*!< DMA channel 0 peripheral base address register */
#define DMA_CH0MADDR(dmax) REG32((dmax) + 0x14U) /*!< DMA channel 0 memory base address register */
#define DMA_CH1CTL(dmax) REG32((dmax) + 0x1CU) /*!< DMA channel 1 control register */
#define DMA_CH1CNT(dmax) REG32((dmax) + 0x20U) /*!< DMA channel 1 counter register */
#define DMA_CH1PADDR(dmax) REG32((dmax) + 0x24U) /*!< DMA channel 1 peripheral base address register */
#define DMA_CH1MADDR(dmax) REG32((dmax) + 0x28U) /*!< DMA channel 1 memory base address register */
#define DMA_CH2CTL(dmax) REG32((dmax) + 0x30U) /*!< DMA channel 2 control register */
#define DMA_CH2CNT(dmax) REG32((dmax) + 0x34U) /*!< DMA channel 2 counter register */
#define DMA_CH2PADDR(dmax) REG32((dmax) + 0x38U) /*!< DMA channel 2 peripheral base address register */
#define DMA_CH2MADDR(dmax) REG32((dmax) + 0x3CU) /*!< DMA channel 2 memory base address register */
#define DMA_CH3CTL(dmax) REG32((dmax) + 0x44U) /*!< DMA channel 3 control register */
#define DMA_CH3CNT(dmax) REG32((dmax) + 0x48U) /*!< DMA channel 3 counter register */
#define DMA_CH3PADDR(dmax) REG32((dmax) + 0x4CU) /*!< DMA channel 3 peripheral base address register */
#define DMA_CH3MADDR(dmax) REG32((dmax) + 0x50U) /*!< DMA channel 3 memory base address register */
#define DMA_CH4CTL(dmax) REG32((dmax) + 0x58U) /*!< DMA channel 4 control register */
#define DMA_CH4CNT(dmax) REG32((dmax) + 0x5CU) /*!< DMA channel 4 counter register */
#define DMA_CH4PADDR(dmax) REG32((dmax) + 0x60U) /*!< DMA channel 4 peripheral base address register */
#define DMA_CH4MADDR(dmax) REG32((dmax) + 0x64U) /*!< DMA channel 4 memory base address register */
#define DMA_CH5CTL(dmax) REG32((dmax) + 0x6CU) /*!< DMA channel 5 control register */
#define DMA_CH5CNT(dmax) REG32((dmax) + 0x70U) /*!< DMA channel 5 counter register */
#define DMA_CH5PADDR(dmax) REG32((dmax) + 0x74U) /*!< DMA channel 5 peripheral base address register */
#define DMA_CH5MADDR(dmax) REG32((dmax) + 0x78U) /*!< DMA channel 5 memory base address register */
#define DMA_CH6CTL(dmax) REG32((dmax) + 0x80U) /*!< DMA channel 6 control register */
#define DMA_CH6CNT(dmax) REG32((dmax) + 0x84U) /*!< DMA channel 6 counter register */
#define DMA_CH6PADDR(dmax) REG32((dmax) + 0x88U) /*!< DMA channel 6 peripheral base address register */
#define DMA_CH6MADDR(dmax) REG32((dmax) + 0x8CU) /*!< DMA channel 6 memory base address register */
/* bits definitions */
/* DMA_INTF */
#define DMA_INTF_GIF BIT(0) /*!< global interrupt flag of channel */
#define DMA_INTF_FTFIF BIT(1) /*!< full transfer finish flag of channel */
#define DMA_INTF_HTFIF BIT(2) /*!< half transfer finish flag of channel */
#define DMA_INTF_ERRIF BIT(3) /*!< error flag of channel */
/* DMA_INTC */
#define DMA_INTC_GIFC BIT(0) /*!< clear global interrupt flag of channel */
#define DMA_INTC_FTFIFC BIT(1) /*!< clear transfer finish flag of channel */
#define DMA_INTC_HTFIFC BIT(2) /*!< clear half transfer finish flag of channel */
#define DMA_INTC_ERRIFC BIT(3) /*!< clear error flag of channel */
/* DMA_CHxCTL, x=0..6 */
#define DMA_CHXCTL_CHEN BIT(0) /*!< channel enable */
#define DMA_CHXCTL_FTFIE BIT(1) /*!< enable bit for channel full transfer finish interrupt */
#define DMA_CHXCTL_HTFIE BIT(2) /*!< enable bit for channel half transfer finish interrupt */
#define DMA_CHXCTL_ERRIE BIT(3) /*!< enable bit for channel error interrupt */
#define DMA_CHXCTL_DIR BIT(4) /*!< transfer direction */
#define DMA_CHXCTL_CMEN BIT(5) /*!< circular mode enable */
#define DMA_CHXCTL_PNAGA BIT(6) /*!< next address generation algorithm of peripheral */
#define DMA_CHXCTL_MNAGA BIT(7) /*!< next address generation algorithm of memory */
#define DMA_CHXCTL_PWIDTH BITS(8,9) /*!< transfer data width of peripheral */
#define DMA_CHXCTL_MWIDTH BITS(10,11) /*!< transfer data width of memory */
#define DMA_CHXCTL_PRIO BITS(12,13) /*!< priority level */
#define DMA_CHXCTL_M2M BIT(14) /*!< memory to memory mode */
/* DMA_CHxCNT, x=0..6 */
#define DMA_CHXCNT_CNT BITS(0,15) /*!< transfer counter */
/* DMA_CHxPADDR, x=0..6 */
#define DMA_CHXPADDR_PADDR BITS(0,31) /*!< peripheral base address */
/* DMA_CHxMADDR, x=0..6 */
#define DMA_CHXMADDR_MADDR BITS(0,31) /*!< memory base address */
/* constants definitions */
/* DMA channel select */
typedef enum
{
DMA_CH0 = 0, /*!< DMA Channel0 */
DMA_CH1, /*!< DMA Channel1 */
DMA_CH2, /*!< DMA Channel2 */
DMA_CH3, /*!< DMA Channel3 */
DMA_CH4, /*!< DMA Channel4 */
DMA_CH5, /*!< DMA Channel5 */
DMA_CH6 /*!< DMA Channel6 */
} dma_channel_enum;
/* DMA initialize struct */
typedef struct
{
uint32_t periph_addr; /*!< peripheral base address */
uint32_t periph_width; /*!< transfer data size of peripheral */
uint32_t memory_addr; /*!< memory base address */
uint32_t memory_width; /*!< transfer data size of memory */
uint32_t number; /*!< channel transfer number */
uint32_t priority; /*!< channel priority level */
uint8_t periph_inc; /*!< peripheral increasing mode */
uint8_t memory_inc; /*!< memory increasing mode */
uint8_t direction; /*!< channel data transfer direction */
} dma_parameter_struct;
#define DMA_FLAG_ADD(flag, shift) ((flag) << ((shift) * 4U)) /*!< DMA channel flag shift */
/* DMA_register address */
#define DMA_CHCTL(dma, channel) REG32(((dma) + 0x08U) + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXCTL register */
#define DMA_CHCNT(dma, channel) REG32(((dma) + 0x0CU) + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXCNT register */
#define DMA_CHPADDR(dma, channel) REG32(((dma) + 0x10U) + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXPADDR register */
#define DMA_CHMADDR(dma, channel) REG32(((dma) + 0x14U) + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXMADDR register */
/* DMA reset value */
#define DMA_CHCTL_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXCTL register */
#define DMA_CHCNT_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXCNT register */
#define DMA_CHPADDR_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXPADDR register */
#define DMA_CHMADDR_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXMADDR register */
#define DMA_CHINTF_RESET_VALUE (DMA_INTF_GIF | DMA_INTF_FTFIF | \
DMA_INTF_HTFIF | DMA_INTF_ERRIF) /*!< clear DMA channel DMA_INTF register */
/* DMA_INTF register */
/* interrupt flag bits */
#define DMA_INT_FLAG_G DMA_INTF_GIF /*!< global interrupt flag of channel */
#define DMA_INT_FLAG_FTF DMA_INTF_FTFIF /*!< full transfer finish interrupt flag of channel */
#define DMA_INT_FLAG_HTF DMA_INTF_HTFIF /*!< half transfer finish interrupt flag of channel */
#define DMA_INT_FLAG_ERR DMA_INTF_ERRIF /*!< error interrupt flag of channel */
/* flag bits */
#define DMA_FLAG_G DMA_INTF_GIF /*!< global interrupt flag of channel */
#define DMA_FLAG_FTF DMA_INTF_FTFIF /*!< full transfer finish flag of channel */
#define DMA_FLAG_HTF DMA_INTF_HTFIF /*!< half transfer finish flag of channel */
#define DMA_FLAG_ERR DMA_INTF_ERRIF /*!< error flag of channel */
/* DMA_CHxCTL register */
/* interrupt enable bits */
#define DMA_INT_FTF DMA_CHXCTL_FTFIE /*!< enable bit for channel full transfer finish interrupt */
#define DMA_INT_HTF DMA_CHXCTL_HTFIE /*!< enable bit for channel half transfer finish interrupt */
#define DMA_INT_ERR DMA_CHXCTL_ERRIE /*!< enable bit for channel error interrupt */
/* transfer direction */
#define DMA_PERIPHERAL_TO_MEMORY ((uint8_t)0x00U) /*!< read from peripheral and write to memory */
#define DMA_MEMORY_TO_PERIPHERAL ((uint8_t)0x01U) /*!< read from memory and write to peripheral */
/* peripheral increasing mode */
#define DMA_PERIPH_INCREASE_DISABLE ((uint8_t)0x00U) /*!< next address of peripheral is fixed address mode */
#define DMA_PERIPH_INCREASE_ENABLE ((uint8_t)0x01U) /*!< next address of peripheral is increasing address mode */
/* memory increasing mode */
#define DMA_MEMORY_INCREASE_DISABLE ((uint8_t)0x00U) /*!< next address of memory is fixed address mode */
#define DMA_MEMORY_INCREASE_ENABLE ((uint8_t)0x01U) /*!< next address of memory is increasing address mode */
/* transfer data size of peripheral */
#define CHCTL_PWIDTH(regval) (BITS(8,9) & ((uint32_t)(regval) << 8)) /*!< transfer data size of peripheral */
#define DMA_PERIPHERAL_WIDTH_8BIT CHCTL_PWIDTH(0U) /*!< transfer data size of peripheral is 8-bit */
#define DMA_PERIPHERAL_WIDTH_16BIT CHCTL_PWIDTH(1U) /*!< transfer data size of peripheral is 16-bit */
#define DMA_PERIPHERAL_WIDTH_32BIT CHCTL_PWIDTH(2U) /*!< transfer data size of peripheral is 32-bit */
/* transfer data size of memory */
#define CHCTL_MWIDTH(regval) (BITS(10,11) & ((uint32_t)(regval) << 10)) /*!< transfer data size of memory */
#define DMA_MEMORY_WIDTH_8BIT CHCTL_MWIDTH(0U) /*!< transfer data size of memory is 8-bit */
#define DMA_MEMORY_WIDTH_16BIT CHCTL_MWIDTH(1U) /*!< transfer data size of memory is 16-bit */
#define DMA_MEMORY_WIDTH_32BIT CHCTL_MWIDTH(2U) /*!< transfer data size of memory is 32-bit */
/* channel priority level */
#define CHCTL_PRIO(regval) (BITS(12,13) & ((uint32_t)(regval) << 12)) /*!< DMA channel priority level */
#define DMA_PRIORITY_LOW CHCTL_PRIO(0U) /*!< low priority */
#define DMA_PRIORITY_MEDIUM CHCTL_PRIO(1U) /*!< medium priority */
#define DMA_PRIORITY_HIGH CHCTL_PRIO(2U) /*!< high priority */
#define DMA_PRIORITY_ULTRA_HIGH CHCTL_PRIO(3U) /*!< ultra high priority */
/* memory to memory mode */
#define DMA_MEMORY_TO_MEMORY_DISABLE ((uint32_t)0x00000000U) /*!< disable memory to memory mode */
#define DMA_MEMORY_TO_MEMORY_ENABLE ((uint32_t)0x00000001U) /*!< enable memory to memory mode */
/* DMA_CHxCNT register */
/* transfer counter */
#define DMA_CHANNEL_CNT_MASK DMA_CHXCNT_CNT /*!< transfer counter mask */
/* function declarations */
/* DMA deinitialization and initialization functions */
/* deinitialize DMA a channel registers */
void dma_deinit(uint32_t dma_periph, dma_channel_enum channelx);
/* initialize the parameters of DMA struct with the default values */
void dma_struct_para_init(dma_parameter_struct* init_struct);
/* initialize DMA channel */
void dma_init(uint32_t dma_periph, dma_channel_enum channelx, dma_parameter_struct *init_struct);
/* enable DMA circulation mode */
void dma_circulation_enable(uint32_t dma_periph, dma_channel_enum channelx);
/* disable DMA circulation mode */
void dma_circulation_disable(uint32_t dma_periph, dma_channel_enum channelx);
/* enable memory to memory mode */
void dma_memory_to_memory_enable(uint32_t dma_periph, dma_channel_enum channelx);
/* disable memory to memory mode */
void dma_memory_to_memory_disable(uint32_t dma_periph, dma_channel_enum channelx);
/* enable DMA channel */
void dma_channel_enable(uint32_t dma_periph, dma_channel_enum channelx);
/* disable DMA channel */
void dma_channel_disable(uint32_t dma_periph, dma_channel_enum channelx);
/* DMA configuration functions */
/* set DMA peripheral base address */
void dma_periph_address_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t address);
/* set DMA memory base address */
void dma_memory_address_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t address);
/* set the number of remaining data to be transferred by the DMA */
void dma_transfer_number_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t number);
/* get the number of remaining data to be transferred by the DMA */
uint32_t dma_transfer_number_get(uint32_t dma_periph, dma_channel_enum channelx);
/* configure priority level of DMA channel */
void dma_priority_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t priority);
/* configure transfer data size of memory */
void dma_memory_width_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t mwidth);
/* configure transfer data size of peripheral */
void dma_periph_width_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t pwidth);
/* enable next address increasement algorithm of memory */
void dma_memory_increase_enable(uint32_t dma_periph, dma_channel_enum channelx);
/* disable next address increasement algorithm of memory */
void dma_memory_increase_disable(uint32_t dma_periph, dma_channel_enum channelx);
/* enable next address increasement algorithm of peripheral */
void dma_periph_increase_enable(uint32_t dma_periph, dma_channel_enum channelx);
/* disable next address increasement algorithm of peripheral */
void dma_periph_increase_disable(uint32_t dma_periph, dma_channel_enum channelx);
/* configure the direction of data transfer on the channel */
void dma_transfer_direction_config(uint32_t dma_periph, dma_channel_enum channelx, uint8_t direction);
/* flag and interrupt functions */
/* check DMA flag is set or not */
FlagStatus dma_flag_get(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag);
/* clear the flag of a DMA channel */
void dma_flag_clear(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag);
/* check DMA flag and interrupt enable bit is set or not */
FlagStatus dma_interrupt_flag_get(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag);
/* clear the interrupt flag of a DMA channel */
void dma_interrupt_flag_clear(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag);
/* enable DMA interrupt */
void dma_interrupt_enable(uint32_t dma_periph, dma_channel_enum channelx, uint32_t source);
/* disable DMA interrupt */
void dma_interrupt_disable(uint32_t dma_periph, dma_channel_enum channelx, uint32_t source);
#endif /* GD32VF103_DMA_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_eclic.h
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/*!
\file gd32vf103_eclic.h
\brief definitions for the ECLIC(Enhancement Core-Local Interrupt Controller)
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_ECLIC_H
#define GD32VF103_ECLIC_H
#include "gd32vf103.h"
/* constants definitions */
#define ECLIC_PRIGROUP_LEVEL0_PRIO4 0 /*!< 0 bits for level 4 bits for priority */
#define ECLIC_PRIGROUP_LEVEL1_PRIO3 1 /*!< 1 bits for level 3 bits for priority */
#define ECLIC_PRIGROUP_LEVEL2_PRIO2 2 /*!< 2 bits for level 2 bits for priority */
#define ECLIC_PRIGROUP_LEVEL3_PRIO1 3 /*!< 3 bits for level 1 bits for priority */
#define ECLIC_PRIGROUP_LEVEL4_PRIO0 4 /*!< 4 bits for level 0 bits for priority */
#define __SEV eclic_send_event
/* function declarations */
/* enable the global interrupt */
void eclic_global_interrupt_enable(void);
/* disable the global interrupt */
void eclic_global_interrupt_disable(void);
/* set the priority group */
void eclic_priority_group_set(uint32_t prigroup);
/* enable the interrupt request */
void eclic_irq_enable(uint32_t source, uint8_t level, uint8_t priority);
/* disable the interrupt request */
void eclic_irq_disable(uint32_t source);
/* reset system */
void eclic_system_reset(void);
/* send event(SEV) */
void eclic_send_event(void);
#endif /* GD32VF103_ECLIC_H */

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/*!
\file gd32vf103_exmc.h
\brief definitions for the EXMC
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_EXMC_H
#define GD32VF103_EXMC_H
#include "gd32vf103.h"
/* EXMC definitions */
#define EXMC (EXMC_BASE) /*!< EXMC register base address */
/* registers definitions */
/* NOR/PSRAM */
#define EXMC_SNCTL0 REG32(EXMC + 0x00U) /*!< EXMC SRAM/NOR flash control register 0 */
#define EXMC_SNTCFG0 REG32(EXMC + 0x04U) /*!< EXMC SRAM/NOR flash timing configuration register 0 */
#define EXMC_SNWTCFG0 REG32(EXMC + 0x104U) /*!< EXMC SRAM/NOR flash write timing configuration register 0 */
/* bits definitions */
/* NOR/PSRAM */
/* EXMC_SNCTLx, x=0 */
#define EXMC_SNCTL_NRBKEN BIT(0) /*!< NOR bank enable */
#define EXMC_SNCTL_NRMUX BIT(1) /*!< NOR bank memory address/data multiplexing */
#define EXMC_SNCTL_NRTP BITS(2,3) /*!< NOR bank memory type */
#define EXMC_SNCTL_NRW BITS(4,5) /*!< NOR bank memory data bus width */
#define EXMC_SNCTL_NREN BIT(6) /*!< NOR flash access enable */
#define EXMC_SNCTL_NRWTPOL BIT(9) /*!< NWAIT signal polarity */
#define EXMC_SNCTL_WREN BIT(12) /*!< write enable */
#define EXMC_SNCTL_NRWTEN BIT(13) /*!< NWAIT signal enable */
#define EXMC_SNCTL_ASYNCWAIT BIT(15) /*!< asynchronous wait */
/* EXMC_SNTCFGx, x=0 */
#define EXMC_SNTCFG_ASET BITS(0,3) /*!< address setup time */
#define EXMC_SNTCFG_AHLD BITS(4,7) /*!< address hold time */
#define EXMC_SNTCFG_DSET BITS(8,15) /*!< data setup time */
#define EXMC_SNTCFG_BUSLAT BITS(16,19) /*!< bus latency */
/* constants definitions */
/* EXMC NOR/SRAM timing initialize struct */
typedef struct
{
uint32_t bus_latency; /*!< configure the bus latency */
uint32_t asyn_data_setuptime; /*!< configure the data setup time,asynchronous access mode valid */
uint32_t asyn_address_holdtime; /*!< configure the address hold time,asynchronous access mode valid */
uint32_t asyn_address_setuptime; /*!< configure the data setup time,asynchronous access mode valid */
}exmc_norsram_timing_parameter_struct;
/* EXMC NOR/SRAM initialize struct */
typedef struct
{
uint32_t norsram_region; /*!< select the region of EXMC NOR/SRAM bank */
uint32_t asyn_wait; /*!< enable or disable the asynchronous wait function */
uint32_t nwait_signal; /*!< enable or disable the NWAIT signal */
uint32_t memory_write; /*!< enable or disable the write operation */
uint32_t nwait_polarity; /*!< specifies the polarity of NWAIT signal from memory */
uint32_t databus_width; /*!< specifies the databus width of external memory */
uint32_t memory_type; /*!< specifies the type of external memory */
uint32_t address_data_mux; /*!< specifies whether the data bus and address bus are multiplexed */
exmc_norsram_timing_parameter_struct* read_write_timing; /*!< timing parameters for read and write */
}exmc_norsram_parameter_struct;
/* EXMC register address */
#define EXMC_SNCTL(region) REG32(EXMC + 0x08U * (region)) /*!< EXMC SRAM/NOR flash control register */
#define EXMC_SNTCFG(region) REG32(EXMC + 0x04U + 0x08U * (region)) /*!< EXMC SRAM/NOR flash timing configuration register */
/* NOR bank memory data bus width */
#define SNCTL_NRW(regval) (BITS(4,5) & ((uint32_t)(regval) << 4))
#define EXMC_NOR_DATABUS_WIDTH_8B SNCTL_NRW(0) /*!< NOR data width 8 bits */
#define EXMC_NOR_DATABUS_WIDTH_16B SNCTL_NRW(1) /*!< NOR data width 16 bits */
/* NOR bank memory type */
#define SNCTL_NRTP(regval) (BITS(2,3) & ((uint32_t)(regval) << 2))
#define EXMC_MEMORY_TYPE_SRAM SNCTL_NRTP(0) /*!< SRAM,ROM */
#define EXMC_MEMORY_TYPE_PSRAM SNCTL_NRTP(1) /*!< PSRAM,CRAM */
#define EXMC_MEMORY_TYPE_NOR SNCTL_NRTP(2) /*!< NOR flash */
/* EXMC NOR/SRAM bank region definition */
#define EXMC_BANK0_NORSRAM_REGION0 ((uint32_t)0x00000000U) /*!< bank0 NOR/SRAM region0 */
/* EXMC NWAIT signal polarity configuration */
#define EXMC_NWAIT_POLARITY_LOW ((uint32_t)0x00000000U) /*!< low level is active of NWAIT */
#define EXMC_NWAIT_POLARITY_HIGH ((uint32_t)0x00000200U) /*!< high level is active of NWAIT */
/* function declarations */
/* deinitialize EXMC NOR/SRAM region */
void exmc_norsram_deinit(uint32_t norsram_region);
/* exmc_norsram_parameter_struct parameter initialize */
void exmc_norsram_struct_para_init(exmc_norsram_parameter_struct* exmc_norsram_init_struct);
/* initialize EXMC NOR/SRAM region */
void exmc_norsram_init(exmc_norsram_parameter_struct* exmc_norsram_init_struct);
/* EXMC NOR/SRAM bank enable */
void exmc_norsram_enable(uint32_t norsram_region);
/* EXMC NOR/SRAM bank disable */
void exmc_norsram_disable(uint32_t norsram_region);
#endif /* GD32VF103_EXMC_H */

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/*!
\file gd32vf103_exti.h
\brief definitions for the EXTI
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_EXTI_H
#define GD32VF103_EXTI_H
#include "gd32vf103.h"
/* EXTI definitions */
#define EXTI EXTI_BASE
/* registers definitions */
#define EXTI_INTEN REG32(EXTI + 0x00U) /*!< interrupt enable register */
#define EXTI_EVEN REG32(EXTI + 0x04U) /*!< event enable register */
#define EXTI_RTEN REG32(EXTI + 0x08U) /*!< rising edge trigger enable register */
#define EXTI_FTEN REG32(EXTI + 0x0CU) /*!< falling trigger enable register */
#define EXTI_SWIEV REG32(EXTI + 0x10U) /*!< software interrupt event register */
#define EXTI_PD REG32(EXTI + 0x14U) /*!< pending register */
/* bits definitions */
/* EXTI_INTEN */
#define EXTI_INTEN_INTEN0 BIT(0) /*!< interrupt from line 0 */
#define EXTI_INTEN_INTEN1 BIT(1) /*!< interrupt from line 1 */
#define EXTI_INTEN_INTEN2 BIT(2) /*!< interrupt from line 2 */
#define EXTI_INTEN_INTEN3 BIT(3) /*!< interrupt from line 3 */
#define EXTI_INTEN_INTEN4 BIT(4) /*!< interrupt from line 4 */
#define EXTI_INTEN_INTEN5 BIT(5) /*!< interrupt from line 5 */
#define EXTI_INTEN_INTEN6 BIT(6) /*!< interrupt from line 6 */
#define EXTI_INTEN_INTEN7 BIT(7) /*!< interrupt from line 7 */
#define EXTI_INTEN_INTEN8 BIT(8) /*!< interrupt from line 8 */
#define EXTI_INTEN_INTEN9 BIT(9) /*!< interrupt from line 9 */
#define EXTI_INTEN_INTEN10 BIT(10) /*!< interrupt from line 10 */
#define EXTI_INTEN_INTEN11 BIT(11) /*!< interrupt from line 11 */
#define EXTI_INTEN_INTEN12 BIT(12) /*!< interrupt from line 12 */
#define EXTI_INTEN_INTEN13 BIT(13) /*!< interrupt from line 13 */
#define EXTI_INTEN_INTEN14 BIT(14) /*!< interrupt from line 14 */
#define EXTI_INTEN_INTEN15 BIT(15) /*!< interrupt from line 15 */
#define EXTI_INTEN_INTEN16 BIT(16) /*!< interrupt from line 16 */
#define EXTI_INTEN_INTEN17 BIT(17) /*!< interrupt from line 17 */
#define EXTI_INTEN_INTEN18 BIT(18) /*!< interrupt from line 18 */
/* EXTI_EVEN */
#define EXTI_EVEN_EVEN0 BIT(0) /*!< event from line 0 */
#define EXTI_EVEN_EVEN1 BIT(1) /*!< event from line 1 */
#define EXTI_EVEN_EVEN2 BIT(2) /*!< event from line 2 */
#define EXTI_EVEN_EVEN3 BIT(3) /*!< event from line 3 */
#define EXTI_EVEN_EVEN4 BIT(4) /*!< event from line 4 */
#define EXTI_EVEN_EVEN5 BIT(5) /*!< event from line 5 */
#define EXTI_EVEN_EVEN6 BIT(6) /*!< event from line 6 */
#define EXTI_EVEN_EVEN7 BIT(7) /*!< event from line 7 */
#define EXTI_EVEN_EVEN8 BIT(8) /*!< event from line 8 */
#define EXTI_EVEN_EVEN9 BIT(9) /*!< event from line 9 */
#define EXTI_EVEN_EVEN10 BIT(10) /*!< event from line 10 */
#define EXTI_EVEN_EVEN11 BIT(11) /*!< event from line 11 */
#define EXTI_EVEN_EVEN12 BIT(12) /*!< event from line 12 */
#define EXTI_EVEN_EVEN13 BIT(13) /*!< event from line 13 */
#define EXTI_EVEN_EVEN14 BIT(14) /*!< event from line 14 */
#define EXTI_EVEN_EVEN15 BIT(15) /*!< event from line 15 */
#define EXTI_EVEN_EVEN16 BIT(16) /*!< event from line 16 */
#define EXTI_EVEN_EVEN17 BIT(17) /*!< event from line 17 */
#define EXTI_EVEN_EVEN18 BIT(18) /*!< event from line 18 */
/* EXTI_RTEN */
#define EXTI_RTEN_RTEN0 BIT(0) /*!< rising edge from line 0 */
#define EXTI_RTEN_RTEN1 BIT(1) /*!< rising edge from line 1 */
#define EXTI_RTEN_RTEN2 BIT(2) /*!< rising edge from line 2 */
#define EXTI_RTEN_RTEN3 BIT(3) /*!< rising edge from line 3 */
#define EXTI_RTEN_RTEN4 BIT(4) /*!< rising edge from line 4 */
#define EXTI_RTEN_RTEN5 BIT(5) /*!< rising edge from line 5 */
#define EXTI_RTEN_RTEN6 BIT(6) /*!< rising edge from line 6 */
#define EXTI_RTEN_RTEN7 BIT(7) /*!< rising edge from line 7 */
#define EXTI_RTEN_RTEN8 BIT(8) /*!< rising edge from line 8 */
#define EXTI_RTEN_RTEN9 BIT(9) /*!< rising edge from line 9 */
#define EXTI_RTEN_RTEN10 BIT(10) /*!< rising edge from line 10 */
#define EXTI_RTEN_RTEN11 BIT(11) /*!< rising edge from line 11 */
#define EXTI_RTEN_RTEN12 BIT(12) /*!< rising edge from line 12 */
#define EXTI_RTEN_RTEN13 BIT(13) /*!< rising edge from line 13 */
#define EXTI_RTEN_RTEN14 BIT(14) /*!< rising edge from line 14 */
#define EXTI_RTEN_RTEN15 BIT(15) /*!< rising edge from line 15 */
#define EXTI_RTEN_RTEN16 BIT(16) /*!< rising edge from line 16 */
#define EXTI_RTEN_RTEN17 BIT(17) /*!< rising edge from line 17 */
#define EXTI_RTEN_RTEN18 BIT(18) /*!< rising edge from line 18 */
/* EXTI_FTEN */
#define EXTI_FTEN_FTEN0 BIT(0) /*!< falling edge from line 0 */
#define EXTI_FTEN_FTEN1 BIT(1) /*!< falling edge from line 1 */
#define EXTI_FTEN_FTEN2 BIT(2) /*!< falling edge from line 2 */
#define EXTI_FTEN_FTEN3 BIT(3) /*!< falling edge from line 3 */
#define EXTI_FTEN_FTEN4 BIT(4) /*!< falling edge from line 4 */
#define EXTI_FTEN_FTEN5 BIT(5) /*!< falling edge from line 5 */
#define EXTI_FTEN_FTEN6 BIT(6) /*!< falling edge from line 6 */
#define EXTI_FTEN_FTEN7 BIT(7) /*!< falling edge from line 7 */
#define EXTI_FTEN_FTEN8 BIT(8) /*!< falling edge from line 8 */
#define EXTI_FTEN_FTEN9 BIT(9) /*!< falling edge from line 9 */
#define EXTI_FTEN_FTEN10 BIT(10) /*!< falling edge from line 10 */
#define EXTI_FTEN_FTEN11 BIT(11) /*!< falling edge from line 11 */
#define EXTI_FTEN_FTEN12 BIT(12) /*!< falling edge from line 12 */
#define EXTI_FTEN_FTEN13 BIT(13) /*!< falling edge from line 13 */
#define EXTI_FTEN_FTEN14 BIT(14) /*!< falling edge from line 14 */
#define EXTI_FTEN_FTEN15 BIT(15) /*!< falling edge from line 15 */
#define EXTI_FTEN_FTEN16 BIT(16) /*!< falling edge from line 16 */
#define EXTI_FTEN_FTEN17 BIT(17) /*!< falling edge from line 17 */
#define EXTI_FTEN_FTEN18 BIT(18) /*!< falling edge from line 18 */
/* EXTI_SWIEV */
#define EXTI_SWIEV_SWIEV0 BIT(0) /*!< software interrupt/event request from line 0 */
#define EXTI_SWIEV_SWIEV1 BIT(1) /*!< software interrupt/event request from line 1 */
#define EXTI_SWIEV_SWIEV2 BIT(2) /*!< software interrupt/event request from line 2 */
#define EXTI_SWIEV_SWIEV3 BIT(3) /*!< software interrupt/event request from line 3 */
#define EXTI_SWIEV_SWIEV4 BIT(4) /*!< software interrupt/event request from line 4 */
#define EXTI_SWIEV_SWIEV5 BIT(5) /*!< software interrupt/event request from line 5 */
#define EXTI_SWIEV_SWIEV6 BIT(6) /*!< software interrupt/event request from line 6 */
#define EXTI_SWIEV_SWIEV7 BIT(7) /*!< software interrupt/event request from line 7 */
#define EXTI_SWIEV_SWIEV8 BIT(8) /*!< software interrupt/event request from line 8 */
#define EXTI_SWIEV_SWIEV9 BIT(9) /*!< software interrupt/event request from line 9 */
#define EXTI_SWIEV_SWIEV10 BIT(10) /*!< software interrupt/event request from line 10 */
#define EXTI_SWIEV_SWIEV11 BIT(11) /*!< software interrupt/event request from line 11 */
#define EXTI_SWIEV_SWIEV12 BIT(12) /*!< software interrupt/event request from line 12 */
#define EXTI_SWIEV_SWIEV13 BIT(13) /*!< software interrupt/event request from line 13 */
#define EXTI_SWIEV_SWIEV14 BIT(14) /*!< software interrupt/event request from line 14 */
#define EXTI_SWIEV_SWIEV15 BIT(15) /*!< software interrupt/event request from line 15 */
#define EXTI_SWIEV_SWIEV16 BIT(16) /*!< software interrupt/event request from line 16 */
#define EXTI_SWIEV_SWIEV17 BIT(17) /*!< software interrupt/event request from line 17 */
#define EXTI_SWIEV_SWIEV18 BIT(18) /*!< software interrupt/event request from line 18 */
/* EXTI_PD */
#define EXTI_PD_PD0 BIT(0) /*!< interrupt/event pending status from line 0 */
#define EXTI_PD_PD1 BIT(1) /*!< interrupt/event pending status from line 1 */
#define EXTI_PD_PD2 BIT(2) /*!< interrupt/event pending status from line 2 */
#define EXTI_PD_PD3 BIT(3) /*!< interrupt/event pending status from line 3 */
#define EXTI_PD_PD4 BIT(4) /*!< interrupt/event pending status from line 4 */
#define EXTI_PD_PD5 BIT(5) /*!< interrupt/event pending status from line 5 */
#define EXTI_PD_PD6 BIT(6) /*!< interrupt/event pending status from line 6 */
#define EXTI_PD_PD7 BIT(7) /*!< interrupt/event pending status from line 7 */
#define EXTI_PD_PD8 BIT(8) /*!< interrupt/event pending status from line 8 */
#define EXTI_PD_PD9 BIT(9) /*!< interrupt/event pending status from line 9 */
#define EXTI_PD_PD10 BIT(10) /*!< interrupt/event pending status from line 10 */
#define EXTI_PD_PD11 BIT(11) /*!< interrupt/event pending status from line 11 */
#define EXTI_PD_PD12 BIT(12) /*!< interrupt/event pending status from line 12 */
#define EXTI_PD_PD13 BIT(13) /*!< interrupt/event pending status from line 13 */
#define EXTI_PD_PD14 BIT(14) /*!< interrupt/event pending status from line 14 */
#define EXTI_PD_PD15 BIT(15) /*!< interrupt/event pending status from line 15 */
#define EXTI_PD_PD16 BIT(16) /*!< interrupt/event pending status from line 16 */
#define EXTI_PD_PD17 BIT(17) /*!< interrupt/event pending status from line 17 */
#define EXTI_PD_PD18 BIT(18) /*!< interrupt/event pending status from line 18 */
/* constants definitions */
/* EXTI line number */
typedef enum {
EXTI_0 = BIT(0), /*!< EXTI line 0 */
EXTI_1 = BIT(1), /*!< EXTI line 1 */
EXTI_2 = BIT(2), /*!< EXTI line 2 */
EXTI_3 = BIT(3), /*!< EXTI line 3 */
EXTI_4 = BIT(4), /*!< EXTI line 4 */
EXTI_5 = BIT(5), /*!< EXTI line 5 */
EXTI_6 = BIT(6), /*!< EXTI line 6 */
EXTI_7 = BIT(7), /*!< EXTI line 7 */
EXTI_8 = BIT(8), /*!< EXTI line 8 */
EXTI_9 = BIT(9), /*!< EXTI line 9 */
EXTI_10 = BIT(10), /*!< EXTI line 10 */
EXTI_11 = BIT(11), /*!< EXTI line 11 */
EXTI_12 = BIT(12), /*!< EXTI line 12 */
EXTI_13 = BIT(13), /*!< EXTI line 13 */
EXTI_14 = BIT(14), /*!< EXTI line 14 */
EXTI_15 = BIT(15), /*!< EXTI line 15 */
EXTI_16 = BIT(16), /*!< EXTI line 16 */
EXTI_17 = BIT(17), /*!< EXTI line 17 */
EXTI_18 = BIT(18), /*!< EXTI line 18 */
} exti_line_enum;
/* external interrupt and event */
typedef enum {
EXTI_INTERRUPT = 0, /*!< EXTI interrupt mode */
EXTI_EVENT /*!< EXTI event mode */
} exti_mode_enum;
/* interrupt trigger mode */
typedef enum {
EXTI_TRIG_RISING = 0, /*!< EXTI rising edge trigger */
EXTI_TRIG_FALLING, /*!< EXTI falling edge trigger */
EXTI_TRIG_BOTH, /*!< EXTI rising edge and falling edge trigger */
EXTI_TRIG_NONE /*!< without rising edge or falling edge trigger */
} exti_trig_type_enum;
/* function declarations */
/* initialization, EXTI lines configuration functions */
/* deinitialize the EXTI */
void exti_deinit(void);
/* enable the configuration of EXTI initialize */
void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type);
/* enable the interrupts from EXTI line x */
void exti_interrupt_enable(exti_line_enum linex);
/* enable the events from EXTI line x */
void exti_event_enable(exti_line_enum linex);
/* disable the interrupts from EXTI line x */
void exti_interrupt_disable(exti_line_enum linex);
/* disable the events from EXTI line x */
void exti_event_disable(exti_line_enum linex);
/* interrupt & flag functions */
/* get EXTI lines pending flag */
FlagStatus exti_flag_get(exti_line_enum linex);
/* clear EXTI lines pending flag */
void exti_flag_clear(exti_line_enum linex);
/* get EXTI lines flag when the interrupt flag is set */
FlagStatus exti_interrupt_flag_get(exti_line_enum linex);
/* clear EXTI lines pending flag */
void exti_interrupt_flag_clear(exti_line_enum linex);
/* enable the EXTI software interrupt event */
void exti_software_interrupt_enable(exti_line_enum linex);
/* disable the EXTI software interrupt event */
void exti_software_interrupt_disable(exti_line_enum linex);
#endif /* GD32VF103_EXTI_H */

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/*!
\file gd32vf103_fmc.h
\brief definitions for the FMC
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-09-18, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_FMC_H
#define GD32VF103_FMC_H
#include "gd32vf103.h"
/* FMC and option byte definition */
#define FMC FMC_BASE /*!< FMC register base address */
#define OB OB_BASE /*!< option bytes base address */
/* registers definitions */
#define FMC_WS REG32((FMC) + 0x00U) /*!< FMC wait state register */
#define FMC_KEY REG32((FMC) + 0x04U) /*!< FMC unlock key register */
#define FMC_OBKEY REG32((FMC) + 0x08U) /*!< FMC option bytes unlock key register */
#define FMC_STAT REG32((FMC) + 0x0CU) /*!< FMC status register */
#define FMC_CTL REG32((FMC) + 0x10U) /*!< FMC control register */
#define FMC_ADDR REG32((FMC) + 0x14U) /*!< FMC address register */
#define FMC_OBSTAT REG32((FMC) + 0x1CU) /*!< FMC option bytes status register */
#define FMC_WP REG32((FMC) + 0x20U) /*!< FMC erase/program protection register */
#define FMC_PID REG32((FMC) + 0x100U) /*!< FMC product ID register */
#define OB_SPC REG16((OB) + 0x00U) /*!< option byte security protection value */
#define OB_USER REG16((OB) + 0x02U) /*!< option byte user value*/
#define OB_WP0 REG16((OB) + 0x08U) /*!< option byte write protection 0 */
#define OB_WP1 REG16((OB) + 0x0AU) /*!< option byte write protection 1 */
#define OB_WP2 REG16((OB) + 0x0CU) /*!< option byte write protection 2 */
#define OB_WP3 REG16((OB) + 0x0EU) /*!< option byte write protection 3 */
/* bits definitions */
/* FMC_WS */
#define FMC_WS_WSCNT BITS(0,2) /*!< wait state counter */
/* FMC_KEY */
#define FMC_KEY_KEY BITS(0,31) /*!< FMC_CTL unlock key bits */
/* FMC_OBKEY */
#define FMC_OBKEY_OBKEY BITS(0,31) /*!< option bytes unlock key bits */
/* FMC_STAT */
#define FMC_STAT_BUSY BIT(0) /*!< flash busy flag bit */
#define FMC_STAT_PGERR BIT(2) /*!< flash program error flag bit */
#define FMC_STAT_WPERR BIT(4) /*!< erase/program protection error flag bit */
#define FMC_STAT_ENDF BIT(5) /*!< end of operation flag bit */
/* FMC_CTL */
#define FMC_CTL_PG BIT(0) /*!< main flash program command bit */
#define FMC_CTL_PER BIT(1) /*!< main flash page erase command bit */
#define FMC_CTL_MER BIT(2) /*!< main flash mass erase command bit */
#define FMC_CTL_OBPG BIT(4) /*!< option bytes program command bit */
#define FMC_CTL_OBER BIT(5) /*!< option bytes erase command bit */
#define FMC_CTL_START BIT(6) /*!< send erase command to FMC bit */
#define FMC_CTL_LK BIT(7) /*!< FMC_CTL lock bit */
#define FMC_CTL_OBWEN BIT(9) /*!< option bytes erase/program enable bit */
#define FMC_CTL_ERRIE BIT(10) /*!< error interrupt enable bit */
#define FMC_CTL_ENDIE BIT(12) /*!< end of operation interrupt enable bit */
/* FMC_ADDR */
#define FMC_ADDR0_ADDR BITS(0,31) /*!< Flash erase/program command address bits */
/* FMC_OBSTAT */
#define FMC_OBSTAT_OBERR BIT(0) /*!< option bytes read error bit. */
#define FMC_OBSTAT_SPC BIT(1) /*!< option bytes security protection code */
#define FMC_OBSTAT_USER BITS(2,9) /*!< store USER of option bytes block after system reset */
#define FMC_OBSTAT_DATA BITS(10,25) /*!< store DATA of option bytes block after system reset. */
/* FMC_WP */
#define FMC_WP_WP BITS(0,31) /*!< store WP of option bytes block after system reset */
/* FMC_WSEN */
#define FMC_WSEN_WSEN BIT(0) /*!< FMC wait state enable bit */
/* FMC_PID */
#define FMC_PID_PID BITS(0,31) /*!< product ID bits */
/* constants definitions */
/* define the FMC bit position and its register index offset */
#define FMC_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define FMC_REG_VAL(offset) (REG32(FMC + ((uint32_t)(offset) >> 6)))
#define FMC_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
#define FMC_REGIDX_BITS(regidx, bitpos0, bitpos1) (((uint32_t)(regidx) << 12) | ((uint32_t)(bitpos0) << 6) | (uint32_t)(bitpos1))
#define FMC_REG_VALS(offset) (REG32(FMC + ((uint32_t)(offset) >> 12)))
#define FMC_BIT_POS0(val) (((uint32_t)(val) >> 6) & 0x1FU)
#define FMC_BIT_POS1(val) ((uint32_t)(val) & 0x1FU)
#define FMC_REG_OFFSET_GET(flag) ((uint32_t)(flag) >> 12)
/* configuration register */
#define FMC_STAT_REG_OFFSET 0x0CU /*!< status register offset */
#define FMC_CTL_REG_OFFSET 0x10U /*!< control register offset */
#define FMC_OBSTAT_REG_OFFSET 0x1CU /*!< option byte status register offset */
/* fmc state */
typedef enum
{
FMC_READY, /*!< the operation has been completed */
FMC_BUSY, /*!< the operation is in progress */
FMC_PGERR, /*!< program error */
FMC_WPERR, /*!< erase/program protection error */
FMC_TOERR, /*!< timeout error */
}fmc_state_enum;
/* FMC interrupt enable */
typedef enum
{
FMC_INT_END = FMC_REGIDX_BIT(FMC_CTL_REG_OFFSET, 12U), /*!< enable FMC end of program interrupt */
FMC_INT_ERR = FMC_REGIDX_BIT(FMC_CTL_REG_OFFSET, 10U), /*!< enable FMC error interrupt */
}fmc_int_enum;
/* FMC flags */
typedef enum
{
FMC_FLAG_BUSY = FMC_REGIDX_BIT(FMC_STAT_REG_OFFSET, 0U), /*!< FMC busy flag */
FMC_FLAG_PGERR = FMC_REGIDX_BIT(FMC_STAT_REG_OFFSET, 2U), /*!< FMC operation error flag bit */
FMC_FLAG_WPERR = FMC_REGIDX_BIT(FMC_STAT_REG_OFFSET, 4U), /*!< FMC erase/program protection error flag bit */
FMC_FLAG_END = FMC_REGIDX_BIT(FMC_STAT_REG_OFFSET, 5U), /*!< FMC end of operation flag bit */
FMC_FLAG_OBERR = FMC_REGIDX_BIT(FMC_OBSTAT_REG_OFFSET, 0U), /*!< FMC option bytes read error flag */
}fmc_flag_enum;
/* FMC interrupt flags */
typedef enum
{
FMC_INT_FLAG_PGERR = FMC_REGIDX_BITS(FMC_STAT_REG_OFFSET, 2U, 10U), /*!< FMC operation error interrupt flag bit */
FMC_INT_FLAG_WPERR = FMC_REGIDX_BITS(FMC_STAT_REG_OFFSET, 4U, 10U), /*!< FMC erase/program protection error interrupt flag bit */
FMC_INT_FLAG_END = FMC_REGIDX_BITS(FMC_STAT_REG_OFFSET, 5U, 12U), /*!< FMC end of operation interrupt flag bit */
}fmc_interrupt_flag_enum;
/* unlock key */
#define UNLOCK_KEY0 ((uint32_t)0x45670123U) /*!< unlock key 0 */
#define UNLOCK_KEY1 ((uint32_t)0xCDEF89ABU) /*!< unlock key 1 */
/* FMC wait state counter */
#define WS_WSCNT(regval) (BITS(0,2) & ((uint32_t)(regval)))
#define WS_WSCNT_0 WS_WSCNT(0) /*!< FMC 0 wait */
#define WS_WSCNT_1 WS_WSCNT(1) /*!< FMC 1 wait */
#define WS_WSCNT_2 WS_WSCNT(2) /*!< FMC 2 wait */
/* option bytes software/hardware free watch dog timer */
#define OB_FWDGT_SW ((uint8_t)0x01U) /*!< software free watchdog */
#define OB_FWDGT_HW ((uint8_t)0x00U) /*!< hardware free watchdog */
/* option bytes reset or not entering deep sleep mode */
#define OB_DEEPSLEEP_NRST ((uint8_t)0x02U) /*!< no reset when entering deepsleep mode */
#define OB_DEEPSLEEP_RST ((uint8_t)0x00U) /*!< generate a reset instead of entering deepsleep mode */
/* option bytes reset or not entering standby mode */
#define OB_STDBY_NRST ((uint8_t)0x04U) /*!< no reset when entering deepsleep mode */
#define OB_STDBY_RST ((uint8_t)0x00U) /*!< generate a reset instead of entering standby mode */
/* option bytes boot bank value */
#define OB_BOOT_B0 ((uint8_t)0x08U) /*!< boot from bank0 */
#define OB_USER_MASK ((uint8_t)0xF0U) /*!< MASK value */
/* read protect configure */
#define FMC_NSPC ((uint8_t)0xA5U) /*!< no security protection */
#define FMC_USPC ((uint8_t)0xBBU) /*!< under security protection */
/* OB_SPC */
#define OB_SPC_SPC ((uint32_t)0x000000FFU) /*!< option byte security protection value */
#define OB_SPC_SPC_N ((uint32_t)0x0000FF00U) /*!< option byte security protection complement value */
/* OB_USER */
#define OB_USER_USER ((uint32_t)0x00FF0000U) /*!< user option value */
#define OB_USER_USER_N ((uint32_t)0xFF000000U) /*!< user option complement value */
/* OB_WP0 */
#define OB_WP0_WP0 ((uint32_t)0x000000FFU) /*!< FMC write protection option value */
/* OB_WP1 */
#define OB_WP1_WP1 ((uint32_t)0x0000FF00U) /*!< FMC write protection option complement value */
/* OB_WP2 */
#define OB_WP2_WP2 ((uint32_t)0x00FF0000U) /*!< FMC write protection option value */
/* OB_WP3 */
#define OB_WP3_WP3 ((uint32_t)0xFF000000U) /*!< FMC write protection option complement value */
/* option bytes write protection */
#define OB_WP_0 ((uint32_t)0x00000001U) /*!< erase/program protection of sector 0 */
#define OB_WP_1 ((uint32_t)0x00000002U) /*!< erase/program protection of sector 1 */
#define OB_WP_2 ((uint32_t)0x00000004U) /*!< erase/program protection of sector 2 */
#define OB_WP_3 ((uint32_t)0x00000008U) /*!< erase/program protection of sector 3 */
#define OB_WP_4 ((uint32_t)0x00000010U) /*!< erase/program protection of sector 4 */
#define OB_WP_5 ((uint32_t)0x00000020U) /*!< erase/program protection of sector 5 */
#define OB_WP_6 ((uint32_t)0x00000040U) /*!< erase/program protection of sector 6 */
#define OB_WP_7 ((uint32_t)0x00000080U) /*!< erase/program protection of sector 7 */
#define OB_WP_8 ((uint32_t)0x00000100U) /*!< erase/program protection of sector 8 */
#define OB_WP_9 ((uint32_t)0x00000200U) /*!< erase/program protection of sector 9 */
#define OB_WP_10 ((uint32_t)0x00000400U) /*!< erase/program protection of sector 10 */
#define OB_WP_11 ((uint32_t)0x00000800U) /*!< erase/program protection of sector 11 */
#define OB_WP_12 ((uint32_t)0x00001000U) /*!< erase/program protection of sector 12 */
#define OB_WP_13 ((uint32_t)0x00002000U) /*!< erase/program protection of sector 13 */
#define OB_WP_14 ((uint32_t)0x00004000U) /*!< erase/program protection of sector 14 */
#define OB_WP_15 ((uint32_t)0x00008000U) /*!< erase/program protection of sector 15 */
#define OB_WP_16 ((uint32_t)0x00010000U) /*!< erase/program protection of sector 16 */
#define OB_WP_17 ((uint32_t)0x00020000U) /*!< erase/program protection of sector 17 */
#define OB_WP_18 ((uint32_t)0x00040000U) /*!< erase/program protection of sector 18 */
#define OB_WP_19 ((uint32_t)0x00080000U) /*!< erase/program protection of sector 19 */
#define OB_WP_20 ((uint32_t)0x00100000U) /*!< erase/program protection of sector 20 */
#define OB_WP_21 ((uint32_t)0x00200000U) /*!< erase/program protection of sector 21 */
#define OB_WP_22 ((uint32_t)0x00400000U) /*!< erase/program protection of sector 22 */
#define OB_WP_23 ((uint32_t)0x00800000U) /*!< erase/program protection of sector 23 */
#define OB_WP_24 ((uint32_t)0x01000000U) /*!< erase/program protection of sector 24 */
#define OB_WP_25 ((uint32_t)0x02000000U) /*!< erase/program protection of sector 25 */
#define OB_WP_26 ((uint32_t)0x04000000U) /*!< erase/program protection of sector 26 */
#define OB_WP_27 ((uint32_t)0x08000000U) /*!< erase/program protection of sector 27 */
#define OB_WP_28 ((uint32_t)0x10000000U) /*!< erase/program protection of sector 28 */
#define OB_WP_29 ((uint32_t)0x20000000U) /*!< erase/program protection of sector 29 */
#define OB_WP_30 ((uint32_t)0x40000000U) /*!< erase/program protection of sector 30 */
#define OB_WP_31 ((uint32_t)0x80000000U) /*!< erase/program protection of sector 31 */
#define OB_WP_ALL ((uint32_t)0xFFFFFFFFU) /*!< erase/program protection of all sectors */
/* FMC timeout */
#define FMC_TIMEOUT_COUNT ((uint32_t)0x000F0000U) /*!< FMC timeout count value */
/* FMC BANK address */
#define FMC_SIZE (*(uint16_t *)0x1FFFF7E0U) /*!< FMC size */
#define SRAM_SIZE (*(uint16_t *)0x1FFFF7E2U) /*!< SRAM size*/
/* function declarations */
/* FMC main memory programming functions */
/* set the FMC wait state counter */
void fmc_wscnt_set(uint32_t wscnt);
/* unlock the main FMC operation */
void fmc_unlock(void);
/* lock the main FMC operation */
void fmc_lock(void);
/* FMC erase page */
fmc_state_enum fmc_page_erase(uint32_t page_address);
/* FMC erase whole chip */
fmc_state_enum fmc_mass_erase(void);
/* FMC program a word at the corresponding address */
fmc_state_enum fmc_word_program(uint32_t address, uint32_t data);
/* FMC program a half word at the corresponding address */
fmc_state_enum fmc_halfword_program(uint32_t address, uint16_t data);
/* FMC option bytes programming functions */
/* unlock the option byte operation */
void ob_unlock(void);
/* lock the option byte operation */
void ob_lock(void);
/* erase the FMC option byte */
fmc_state_enum ob_erase(void);
/* enable write protection */
fmc_state_enum ob_write_protection_enable(uint32_t ob_wp);
/* configure security protection */
fmc_state_enum ob_security_protection_config(uint8_t ob_spc);
/* program the FMC user option byte */
fmc_state_enum ob_user_write(uint8_t ob_fwdgt, uint8_t ob_deepsleep, uint8_t ob_stdby, uint8_t ob_boot);
/* program the FMC data option byte */
fmc_state_enum ob_data_program(uint32_t address, uint8_t data);
/* get OB_USER in register FMC_OBSTAT */
uint8_t ob_user_get(void);
/* get OB_DATA in register FMC_OBSTAT */
uint16_t ob_data_get(void);
/* get the FMC option byte write protection */
uint32_t ob_write_protection_get(void);
/* get FMC option byte security protection state */
FlagStatus ob_spc_get(void);
/* FMC interrupts and flags management functions */
/* enable FMC interrupt */
void fmc_interrupt_enable(uint32_t interrupt);
/* disable FMC interrupt */
void fmc_interrupt_disable(uint32_t interrupt);
/* check flag is set or not */
FlagStatus fmc_flag_get(uint32_t flag);
/* clear the FMC flag */
void fmc_flag_clear(uint32_t flag);
/* get FMC interrupt flag state */
FlagStatus fmc_interrupt_flag_get(fmc_interrupt_flag_enum flag);
/* clear FMC interrupt flag state */
void fmc_interrupt_flag_clear(fmc_interrupt_flag_enum flag);
/* return the FMC state */
fmc_state_enum fmc_state_get(void);
/* check FMC ready or not */
fmc_state_enum fmc_ready_wait(uint32_t timeout);
#endif /* GD32VF103_FMC_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_fwdgt.h
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/*!
\file gd32vf103_fwdgt.h
\brief definitions for the FWDGT
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_FWDGT_H
#define GD32VF103_FWDGT_H
#include "gd32vf103.h"
/* FWDGT definitions */
#define FWDGT FWDGT_BASE /*!< FWDGT base address */
/* registers definitions */
#define FWDGT_CTL REG32((FWDGT) + 0x00000000U) /*!< FWDGT control register */
#define FWDGT_PSC REG32((FWDGT) + 0x00000004U) /*!< FWDGT prescaler register */
#define FWDGT_RLD REG32((FWDGT) + 0x00000008U) /*!< FWDGT reload register */
#define FWDGT_STAT REG32((FWDGT) + 0x0000000CU) /*!< FWDGT status register */
/* bits definitions */
/* FWDGT_CTL */
#define FWDGT_CTL_CMD BITS(0,15) /*!< FWDGT command value */
/* FWDGT_PSC */
#define FWDGT_PSC_PSC BITS(0,2) /*!< FWDGT prescaler divider value */
/* FWDGT_RLD */
#define FWDGT_RLD_RLD BITS(0,11) /*!< FWDGT counter reload value */
/* FWDGT_STAT */
#define FWDGT_STAT_PUD BIT(0) /*!< FWDGT prescaler divider value update */
#define FWDGT_STAT_RUD BIT(1) /*!< FWDGT counter reload value update */
/* constants definitions */
/* psc register value */
#define PSC_PSC(regval) (BITS(0,2) & ((uint32_t)(regval) << 0))
#define FWDGT_PSC_DIV4 ((uint8_t)PSC_PSC(0)) /*!< FWDGT prescaler set to 4 */
#define FWDGT_PSC_DIV8 ((uint8_t)PSC_PSC(1)) /*!< FWDGT prescaler set to 8 */
#define FWDGT_PSC_DIV16 ((uint8_t)PSC_PSC(2)) /*!< FWDGT prescaler set to 16 */
#define FWDGT_PSC_DIV32 ((uint8_t)PSC_PSC(3)) /*!< FWDGT prescaler set to 32 */
#define FWDGT_PSC_DIV64 ((uint8_t)PSC_PSC(4)) /*!< FWDGT prescaler set to 64 */
#define FWDGT_PSC_DIV128 ((uint8_t)PSC_PSC(5)) /*!< FWDGT prescaler set to 128 */
#define FWDGT_PSC_DIV256 ((uint8_t)PSC_PSC(6)) /*!< FWDGT prescaler set to 256 */
/* control value */
#define FWDGT_WRITEACCESS_ENABLE ((uint16_t)0x5555U) /*!< FWDGT_CTL bits write access enable value */
#define FWDGT_WRITEACCESS_DISABLE ((uint16_t)0x0000U) /*!< FWDGT_CTL bits write access disable value */
#define FWDGT_KEY_RELOAD ((uint16_t)0xAAAAU) /*!< FWDGT_CTL bits fwdgt counter reload value */
#define FWDGT_KEY_ENABLE ((uint16_t)0xCCCCU) /*!< FWDGT_CTL bits fwdgt counter enable value */
/* FWDGT timeout value */
#define FWDGT_PSC_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_PSC register write operation state flag timeout */
#define FWDGT_RLD_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_RLD register write operation state flag timeout */
/* FWDGT flag definitions */
#define FWDGT_FLAG_PUD FWDGT_STAT_PUD /*!< FWDGT prescaler divider value update flag */
#define FWDGT_FLAG_RUD FWDGT_STAT_RUD /*!< FWDGT counter reload value update flag */
/* function declarations */
/* enable write access to FWDGT_PSC and FWDGT_RLD */
void fwdgt_write_enable(void);
/* disable write access to FWDGT_PSC and FWDGT_RLD */
void fwdgt_write_disable(void);
/* start the free watchdog timer counter */
void fwdgt_enable(void);
/* reload the counter of FWDGT */
void fwdgt_counter_reload(void);
/* configure counter reload value, and prescaler divider value */
ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div);
/* get flag state of FWDGT */
FlagStatus fwdgt_flag_get(uint16_t flag);
#endif /* GD32VF103_FWDGT_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_gpio.h
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/*!
\file gd32vf103_gpio.h
\brief definitions for the GPIO
\version 2019-06-5, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_GPIO_H
#define GD32VF103_GPIO_H
#include "gd32vf103.h"
/* GPIOx(x=A,B,C,D,E) definitions */
#define GPIOA (GPIO_BASE + 0x00000000U)
#define GPIOB (GPIO_BASE + 0x00000400U)
#define GPIOC (GPIO_BASE + 0x00000800U)
#define GPIOD (GPIO_BASE + 0x00000C00U)
#define GPIOE (GPIO_BASE + 0x00001000U)
/* AFIO definitions */
#define AFIO AFIO_BASE
/* registers definitions */
/* GPIO registers definitions */
#define GPIO_CTL0(gpiox) REG32((gpiox) + 0x00U) /*!< GPIO port control register 0 */
#define GPIO_CTL1(gpiox) REG32((gpiox) + 0x04U) /*!< GPIO port control register 1 */
#define GPIO_ISTAT(gpiox) REG32((gpiox) + 0x08U) /*!< GPIO port input status register */
#define GPIO_OCTL(gpiox) REG32((gpiox) + 0x0CU) /*!< GPIO port output control register */
#define GPIO_BOP(gpiox) REG32((gpiox) + 0x10U) /*!< GPIO port bit operation register */
#define GPIO_BC(gpiox) REG32((gpiox) + 0x14U) /*!< GPIO bit clear register */
#define GPIO_LOCK(gpiox) REG32((gpiox) + 0x18U) /*!< GPIO port configuration lock register */
/* AFIO registers definitions */
#define AFIO_EC REG32(AFIO + 0x00U) /*!< AFIO event control register */
#define AFIO_PCF0 REG32(AFIO + 0x04U) /*!< AFIO port configuration register 0 */
#define AFIO_EXTISS0 REG32(AFIO + 0x08U) /*!< AFIO port EXTI sources selection register 0 */
#define AFIO_EXTISS1 REG32(AFIO + 0x0CU) /*!< AFIO port EXTI sources selection register 1 */
#define AFIO_EXTISS2 REG32(AFIO + 0x10U) /*!< AFIO port EXTI sources selection register 2 */
#define AFIO_EXTISS3 REG32(AFIO + 0x14U) /*!< AFIO port EXTI sources selection register 3 */
#define AFIO_PCF1 REG32(AFIO + 0x1CU) /*!< AFIO port configuration register 1 */
/* bits definitions */
/* GPIO_CTL0 */
#define GPIO_CTL0_MD0 BITS(0, 1) /*!< port 0 mode bits */
#define GPIO_CTL0_CTL0 BITS(2, 3) /*!< pin 0 configuration bits */
#define GPIO_CTL0_MD1 BITS(4, 5) /*!< port 1 mode bits */
#define GPIO_CTL0_CTL1 BITS(6, 7) /*!< pin 1 configuration bits */
#define GPIO_CTL0_MD2 BITS(8, 9) /*!< port 2 mode bits */
#define GPIO_CTL0_CTL2 BITS(10, 11) /*!< pin 2 configuration bits */
#define GPIO_CTL0_MD3 BITS(12, 13) /*!< port 3 mode bits */
#define GPIO_CTL0_CTL3 BITS(14, 15) /*!< pin 3 configuration bits */
#define GPIO_CTL0_MD4 BITS(16, 17) /*!< port 4 mode bits */
#define GPIO_CTL0_CTL4 BITS(18, 19) /*!< pin 4 configuration bits */
#define GPIO_CTL0_MD5 BITS(20, 21) /*!< port 5 mode bits */
#define GPIO_CTL0_CTL5 BITS(22, 23) /*!< pin 5 configuration bits */
#define GPIO_CTL0_MD6 BITS(24, 25) /*!< port 6 mode bits */
#define GPIO_CTL0_CTL6 BITS(26, 27) /*!< pin 6 configuration bits */
#define GPIO_CTL0_MD7 BITS(28, 29) /*!< port 7 mode bits */
#define GPIO_CTL0_CTL7 BITS(30, 31) /*!< pin 7 configuration bits */
/* GPIO_CTL1 */
#define GPIO_CTL1_MD8 BITS(0, 1) /*!< port 8 mode bits */
#define GPIO_CTL1_CTL8 BITS(2, 3) /*!< pin 8 configuration bits */
#define GPIO_CTL1_MD9 BITS(4, 5) /*!< port 9 mode bits */
#define GPIO_CTL1_CTL9 BITS(6, 7) /*!< pin 9 configuration bits */
#define GPIO_CTL1_MD10 BITS(8, 9) /*!< port 10 mode bits */
#define GPIO_CTL1_CTL10 BITS(10, 11) /*!< pin 10 configuration bits */
#define GPIO_CTL1_MD11 BITS(12, 13) /*!< port 11 mode bits */
#define GPIO_CTL1_CTL11 BITS(14, 15) /*!< pin 11 configuration bits */
#define GPIO_CTL1_MD12 BITS(16, 17) /*!< port 12 mode bits */
#define GPIO_CTL1_CTL12 BITS(18, 19) /*!< pin 12 configuration bits */
#define GPIO_CTL1_MD13 BITS(20, 21) /*!< port 13 mode bits */
#define GPIO_CTL1_CTL13 BITS(22, 23) /*!< pin 13 configuration bits */
#define GPIO_CTL1_MD14 BITS(24, 25) /*!< port 14 mode bits */
#define GPIO_CTL1_CTL14 BITS(26, 27) /*!< pin 14 configuration bits */
#define GPIO_CTL1_MD15 BITS(28, 29) /*!< port 15 mode bits */
#define GPIO_CTL1_CTL15 BITS(30, 31) /*!< pin 15 configuration bits */
/* GPIO_ISTAT */
#define GPIO_ISTAT_ISTAT0 BIT(0) /*!< pin 0 input status */
#define GPIO_ISTAT_ISTAT1 BIT(1) /*!< pin 1 input status */
#define GPIO_ISTAT_ISTAT2 BIT(2) /*!< pin 2 input status */
#define GPIO_ISTAT_ISTAT3 BIT(3) /*!< pin 3 input status */
#define GPIO_ISTAT_ISTAT4 BIT(4) /*!< pin 4 input status */
#define GPIO_ISTAT_ISTAT5 BIT(5) /*!< pin 5 input status */
#define GPIO_ISTAT_ISTAT6 BIT(6) /*!< pin 6 input status */
#define GPIO_ISTAT_ISTAT7 BIT(7) /*!< pin 7 input status */
#define GPIO_ISTAT_ISTAT8 BIT(8) /*!< pin 8 input status */
#define GPIO_ISTAT_ISTAT9 BIT(9) /*!< pin 9 input status */
#define GPIO_ISTAT_ISTAT10 BIT(10) /*!< pin 10 input status */
#define GPIO_ISTAT_ISTAT11 BIT(11) /*!< pin 11 input status */
#define GPIO_ISTAT_ISTAT12 BIT(12) /*!< pin 12 input status */
#define GPIO_ISTAT_ISTAT13 BIT(13) /*!< pin 13 input status */
#define GPIO_ISTAT_ISTAT14 BIT(14) /*!< pin 14 input status */
#define GPIO_ISTAT_ISTAT15 BIT(15) /*!< pin 15 input status */
/* GPIO_OCTL */
#define GPIO_OCTL_OCTL0 BIT(0) /*!< pin 0 output bit */
#define GPIO_OCTL_OCTL1 BIT(1) /*!< pin 1 output bit */
#define GPIO_OCTL_OCTL2 BIT(2) /*!< pin 2 output bit */
#define GPIO_OCTL_OCTL3 BIT(3) /*!< pin 3 output bit */
#define GPIO_OCTL_OCTL4 BIT(4) /*!< pin 4 output bit */
#define GPIO_OCTL_OCTL5 BIT(5) /*!< pin 5 output bit */
#define GPIO_OCTL_OCTL6 BIT(6) /*!< pin 6 output bit */
#define GPIO_OCTL_OCTL7 BIT(7) /*!< pin 7 output bit */
#define GPIO_OCTL_OCTL8 BIT(8) /*!< pin 8 output bit */
#define GPIO_OCTL_OCTL9 BIT(9) /*!< pin 9 output bit */
#define GPIO_OCTL_OCTL10 BIT(10) /*!< pin 10 output bit */
#define GPIO_OCTL_OCTL11 BIT(11) /*!< pin 11 output bit */
#define GPIO_OCTL_OCTL12 BIT(12) /*!< pin 12 output bit */
#define GPIO_OCTL_OCTL13 BIT(13) /*!< pin 13 output bit */
#define GPIO_OCTL_OCTL14 BIT(14) /*!< pin 14 output bit */
#define GPIO_OCTL_OCTL15 BIT(15) /*!< pin 15 output bit */
/* GPIO_BOP */
#define GPIO_BOP_BOP0 BIT(0) /*!< pin 0 set bit */
#define GPIO_BOP_BOP1 BIT(1) /*!< pin 1 set bit */
#define GPIO_BOP_BOP2 BIT(2) /*!< pin 2 set bit */
#define GPIO_BOP_BOP3 BIT(3) /*!< pin 3 set bit */
#define GPIO_BOP_BOP4 BIT(4) /*!< pin 4 set bit */
#define GPIO_BOP_BOP5 BIT(5) /*!< pin 5 set bit */
#define GPIO_BOP_BOP6 BIT(6) /*!< pin 6 set bit */
#define GPIO_BOP_BOP7 BIT(7) /*!< pin 7 set bit */
#define GPIO_BOP_BOP8 BIT(8) /*!< pin 8 set bit */
#define GPIO_BOP_BOP9 BIT(9) /*!< pin 9 set bit */
#define GPIO_BOP_BOP10 BIT(10) /*!< pin 10 set bit */
#define GPIO_BOP_BOP11 BIT(11) /*!< pin 11 set bit */
#define GPIO_BOP_BOP12 BIT(12) /*!< pin 12 set bit */
#define GPIO_BOP_BOP13 BIT(13) /*!< pin 13 set bit */
#define GPIO_BOP_BOP14 BIT(14) /*!< pin 14 set bit */
#define GPIO_BOP_BOP15 BIT(15) /*!< pin 15 set bit */
#define GPIO_BOP_CR0 BIT(16) /*!< pin 0 clear bit */
#define GPIO_BOP_CR1 BIT(17) /*!< pin 1 clear bit */
#define GPIO_BOP_CR2 BIT(18) /*!< pin 2 clear bit */
#define GPIO_BOP_CR3 BIT(19) /*!< pin 3 clear bit */
#define GPIO_BOP_CR4 BIT(20) /*!< pin 4 clear bit */
#define GPIO_BOP_CR5 BIT(21) /*!< pin 5 clear bit */
#define GPIO_BOP_CR6 BIT(22) /*!< pin 6 clear bit */
#define GPIO_BOP_CR7 BIT(23) /*!< pin 7 clear bit */
#define GPIO_BOP_CR8 BIT(24) /*!< pin 8 clear bit */
#define GPIO_BOP_CR9 BIT(25) /*!< pin 9 clear bit */
#define GPIO_BOP_CR10 BIT(26) /*!< pin 10 clear bit */
#define GPIO_BOP_CR11 BIT(27) /*!< pin 11 clear bit */
#define GPIO_BOP_CR12 BIT(28) /*!< pin 12 clear bit */
#define GPIO_BOP_CR13 BIT(29) /*!< pin 13 clear bit */
#define GPIO_BOP_CR14 BIT(30) /*!< pin 14 clear bit */
#define GPIO_BOP_CR15 BIT(31) /*!< pin 15 clear bit */
/* GPIO_BC */
#define GPIO_BC_CR0 BIT(0) /*!< pin 0 clear bit */
#define GPIO_BC_CR1 BIT(1) /*!< pin 1 clear bit */
#define GPIO_BC_CR2 BIT(2) /*!< pin 2 clear bit */
#define GPIO_BC_CR3 BIT(3) /*!< pin 3 clear bit */
#define GPIO_BC_CR4 BIT(4) /*!< pin 4 clear bit */
#define GPIO_BC_CR5 BIT(5) /*!< pin 5 clear bit */
#define GPIO_BC_CR6 BIT(6) /*!< pin 6 clear bit */
#define GPIO_BC_CR7 BIT(7) /*!< pin 7 clear bit */
#define GPIO_BC_CR8 BIT(8) /*!< pin 8 clear bit */
#define GPIO_BC_CR9 BIT(9) /*!< pin 9 clear bit */
#define GPIO_BC_CR10 BIT(10) /*!< pin 10 clear bit */
#define GPIO_BC_CR11 BIT(11) /*!< pin 11 clear bit */
#define GPIO_BC_CR12 BIT(12) /*!< pin 12 clear bit */
#define GPIO_BC_CR13 BIT(13) /*!< pin 13 clear bit */
#define GPIO_BC_CR14 BIT(14) /*!< pin 14 clear bit */
#define GPIO_BC_CR15 BIT(15) /*!< pin 15 clear bit */
/* GPIO_LOCK */
#define GPIO_LOCK_LK0 BIT(0) /*!< pin 0 lock bit */
#define GPIO_LOCK_LK1 BIT(1) /*!< pin 1 lock bit */
#define GPIO_LOCK_LK2 BIT(2) /*!< pin 2 lock bit */
#define GPIO_LOCK_LK3 BIT(3) /*!< pin 3 lock bit */
#define GPIO_LOCK_LK4 BIT(4) /*!< pin 4 lock bit */
#define GPIO_LOCK_LK5 BIT(5) /*!< pin 5 lock bit */
#define GPIO_LOCK_LK6 BIT(6) /*!< pin 6 lock bit */
#define GPIO_LOCK_LK7 BIT(7) /*!< pin 7 lock bit */
#define GPIO_LOCK_LK8 BIT(8) /*!< pin 8 lock bit */
#define GPIO_LOCK_LK9 BIT(9) /*!< pin 9 lock bit */
#define GPIO_LOCK_LK10 BIT(10) /*!< pin 10 lock bit */
#define GPIO_LOCK_LK11 BIT(11) /*!< pin 11 lock bit */
#define GPIO_LOCK_LK12 BIT(12) /*!< pin 12 lock bit */
#define GPIO_LOCK_LK13 BIT(13) /*!< pin 13 lock bit */
#define GPIO_LOCK_LK14 BIT(14) /*!< pin 14 lock bit */
#define GPIO_LOCK_LK15 BIT(15) /*!< pin 15 lock bit */
#define GPIO_LOCK_LKK BIT(16) /*!< pin sequence lock key */
/* AFIO_EC */
#define AFIO_EC_PIN BITS(0, 3) /*!< event output pin selection */
#define AFIO_EC_PORT BITS(4, 6) /*!< event output port selection */
#define AFIO_EC_EOE BIT(7) /*!< event output enable */
/* AFIO_PCF0 */
#define AFIO_PCF0_SPI0_REMAP BIT(0) /*!< SPI0 remapping */
#define AFIO_PCF0_I2C0_REMAP BIT(1) /*!< I2C0 remapping */
#define AFIO_PCF0_USART0_REMAP BIT(2) /*!< USART0 remapping */
#define AFIO_PCF0_USART1_REMAP BIT(3) /*!< USART1 remapping */
#define AFIO_PCF0_USART2_REMAP BITS(4, 5) /*!< USART2 remapping */
#define AFIO_PCF0_TIMER0_REMAP BITS(6, 7) /*!< TIMER0 remapping */
#define AFIO_PCF0_TIMER1_REMAP BITS(8, 9) /*!< TIMER1 remapping */
#define AFIO_PCF0_TIMER2_REMAP BITS(10, 11) /*!< TIMER2 remapping */
#define AFIO_PCF0_TIMER3_REMAP BIT(12) /*!< TIMER3 remapping */
#define AFIO_PCF0_CAN_REMAP BITS(13, 14) /*!< CAN remapping */
#define AFIO_PCF0_PD01_REMAP BIT(15) /*!< port D0/port D1 mapping on OSC_IN/OSC_OUT */
#define AFIO_PCF0_TIMER4CH3_IREMAP BIT(16) /*!< TIMER3 channel3 internal remapping */
#define AFIO_PCF0_SWJ_CFG BITS(24, 26) /*!< serial wire JTAG configuration */
#define AFIO_PCF0_SPI2_REMAP BIT(28) /*!< SPI2/I2S2 remapping */
#define AFIO_PCF0_TIMER1_ITI1_REMAP BIT(29) /*!< TIMER1 internal trigger 1 remapping */
/* AFIO_EXTISS0 */
#define AFIO_EXTI0_SS BITS(0, 3) /*!< EXTI 0 sources selection */
#define AFIO_EXTI1_SS BITS(4, 7) /*!< EXTI 1 sources selection */
#define AFIO_EXTI2_SS BITS(8, 11) /*!< EXTI 2 sources selection */
#define AFIO_EXTI3_SS BITS(12, 15) /*!< EXTI 3 sources selection */
/* AFIO_EXTISS1 */
#define AFIO_EXTI4_SS BITS(0, 3) /*!< EXTI 4 sources selection */
#define AFIO_EXTI5_SS BITS(4, 7) /*!< EXTI 5 sources selection */
#define AFIO_EXTI6_SS BITS(8, 11) /*!< EXTI 6 sources selection */
#define AFIO_EXTI7_SS BITS(12, 15) /*!< EXTI 7 sources selection */
/* AFIO_EXTISS2 */
#define AFIO_EXTI8_SS BITS(0, 3) /*!< EXTI 8 sources selection */
#define AFIO_EXTI9_SS BITS(4, 7) /*!< EXTI 9 sources selection */
#define AFIO_EXTI10_SS BITS(8, 11) /*!< EXTI 10 sources selection */
#define AFIO_EXTI11_SS BITS(12, 15) /*!< EXTI 11 sources selection */
/* AFIO_EXTISS3 */
#define AFIO_EXTI12_SS BITS(0, 3) /*!< EXTI 12 sources selection */
#define AFIO_EXTI13_SS BITS(4, 7) /*!< EXTI 13 sources selection */
#define AFIO_EXTI14_SS BITS(8, 11) /*!< EXTI 14 sources selection */
#define AFIO_EXTI15_SS BITS(12, 15) /*!< EXTI 15 sources selection */
/* AFIO_PCF1 */
#define AFIO_PCF1_EXMC_NADV BIT(10) /*!< EXMC_NADV connect/disconnect */
/* constants definitions */
typedef FlagStatus bit_status;
/* GPIO mode values set */
#define GPIO_MODE_SET(n, mode) ((uint32_t)((uint32_t)(mode) << (4U * (n))))
#define GPIO_MODE_MASK(n) (0xFU << (4U * (n)))
/* GPIO mode definitions */
#define GPIO_MODE_AIN ((uint8_t)0x00U) /*!< analog input mode */
#define GPIO_MODE_IN_FLOATING ((uint8_t)0x04U) /*!< floating input mode */
#define GPIO_MODE_IPD ((uint8_t)0x28U) /*!< pull-down input mode */
#define GPIO_MODE_IPU ((uint8_t)0x48U) /*!< pull-up input mode */
#define GPIO_MODE_OUT_OD ((uint8_t)0x14U) /*!< GPIO output with open-drain */
#define GPIO_MODE_OUT_PP ((uint8_t)0x10U) /*!< GPIO output with push-pull */
#define GPIO_MODE_AF_OD ((uint8_t)0x1CU) /*!< AFIO output with open-drain */
#define GPIO_MODE_AF_PP ((uint8_t)0x18U) /*!< AFIO output with push-pull */
/* GPIO output max speed value */
#define GPIO_OSPEED_10MHZ ((uint8_t)0x01U) /*!< output max speed 10MHz */
#define GPIO_OSPEED_2MHZ ((uint8_t)0x02U) /*!< output max speed 2MHz */
#define GPIO_OSPEED_50MHZ ((uint8_t)0x03U) /*!< output max speed 50MHz */
/* GPIO event output port definitions */
#define GPIO_EVENT_PORT_GPIOA ((uint8_t)0x00U) /*!< event output port A */
#define GPIO_EVENT_PORT_GPIOB ((uint8_t)0x01U) /*!< event output port B */
#define GPIO_EVENT_PORT_GPIOC ((uint8_t)0x02U) /*!< event output port C */
#define GPIO_EVENT_PORT_GPIOD ((uint8_t)0x03U) /*!< event output port D */
#define GPIO_EVENT_PORT_GPIOE ((uint8_t)0x04U) /*!< event output port E */
/* GPIO output port source definitions */
#define GPIO_PORT_SOURCE_GPIOA ((uint8_t)0x00U) /*!< output port source A */
#define GPIO_PORT_SOURCE_GPIOB ((uint8_t)0x01U) /*!< output port source B */
#define GPIO_PORT_SOURCE_GPIOC ((uint8_t)0x02U) /*!< output port source C */
#define GPIO_PORT_SOURCE_GPIOD ((uint8_t)0x03U) /*!< output port source D */
#define GPIO_PORT_SOURCE_GPIOE ((uint8_t)0x04U) /*!< output port source E */
/* GPIO event output pin definitions */
#define GPIO_EVENT_PIN_0 ((uint8_t)0x00U) /*!< GPIO event pin 0 */
#define GPIO_EVENT_PIN_1 ((uint8_t)0x01U) /*!< GPIO event pin 1 */
#define GPIO_EVENT_PIN_2 ((uint8_t)0x02U) /*!< GPIO event pin 2 */
#define GPIO_EVENT_PIN_3 ((uint8_t)0x03U) /*!< GPIO event pin 3 */
#define GPIO_EVENT_PIN_4 ((uint8_t)0x04U) /*!< GPIO event pin 4 */
#define GPIO_EVENT_PIN_5 ((uint8_t)0x05U) /*!< GPIO event pin 5 */
#define GPIO_EVENT_PIN_6 ((uint8_t)0x06U) /*!< GPIO event pin 6 */
#define GPIO_EVENT_PIN_7 ((uint8_t)0x07U) /*!< GPIO event pin 7 */
#define GPIO_EVENT_PIN_8 ((uint8_t)0x08U) /*!< GPIO event pin 8 */
#define GPIO_EVENT_PIN_9 ((uint8_t)0x09U) /*!< GPIO event pin 9 */
#define GPIO_EVENT_PIN_10 ((uint8_t)0x0AU) /*!< GPIO event pin 10 */
#define GPIO_EVENT_PIN_11 ((uint8_t)0x0BU) /*!< GPIO event pin 11 */
#define GPIO_EVENT_PIN_12 ((uint8_t)0x0CU) /*!< GPIO event pin 12 */
#define GPIO_EVENT_PIN_13 ((uint8_t)0x0DU) /*!< GPIO event pin 13 */
#define GPIO_EVENT_PIN_14 ((uint8_t)0x0EU) /*!< GPIO event pin 14 */
#define GPIO_EVENT_PIN_15 ((uint8_t)0x0FU) /*!< GPIO event pin 15 */
/* GPIO output pin source definitions */
#define GPIO_PIN_SOURCE_0 ((uint8_t)0x00U) /*!< GPIO pin source 0 */
#define GPIO_PIN_SOURCE_1 ((uint8_t)0x01U) /*!< GPIO pin source 1 */
#define GPIO_PIN_SOURCE_2 ((uint8_t)0x02U) /*!< GPIO pin source 2 */
#define GPIO_PIN_SOURCE_3 ((uint8_t)0x03U) /*!< GPIO pin source 3 */
#define GPIO_PIN_SOURCE_4 ((uint8_t)0x04U) /*!< GPIO pin source 4 */
#define GPIO_PIN_SOURCE_5 ((uint8_t)0x05U) /*!< GPIO pin source 5 */
#define GPIO_PIN_SOURCE_6 ((uint8_t)0x06U) /*!< GPIO pin source 6 */
#define GPIO_PIN_SOURCE_7 ((uint8_t)0x07U) /*!< GPIO pin source 7 */
#define GPIO_PIN_SOURCE_8 ((uint8_t)0x08U) /*!< GPIO pin source 8 */
#define GPIO_PIN_SOURCE_9 ((uint8_t)0x09U) /*!< GPIO pin source 9 */
#define GPIO_PIN_SOURCE_10 ((uint8_t)0x0AU) /*!< GPIO pin source 10 */
#define GPIO_PIN_SOURCE_11 ((uint8_t)0x0BU) /*!< GPIO pin source 11 */
#define GPIO_PIN_SOURCE_12 ((uint8_t)0x0CU) /*!< GPIO pin source 12 */
#define GPIO_PIN_SOURCE_13 ((uint8_t)0x0DU) /*!< GPIO pin source 13 */
#define GPIO_PIN_SOURCE_14 ((uint8_t)0x0EU) /*!< GPIO pin source 14 */
#define GPIO_PIN_SOURCE_15 ((uint8_t)0x0FU) /*!< GPIO pin source 15 */
/* GPIO pin definitions */
#define GPIO_PIN_0 BIT(0) /*!< GPIO pin 0 */
#define GPIO_PIN_1 BIT(1) /*!< GPIO pin 1 */
#define GPIO_PIN_2 BIT(2) /*!< GPIO pin 2 */
#define GPIO_PIN_3 BIT(3) /*!< GPIO pin 3 */
#define GPIO_PIN_4 BIT(4) /*!< GPIO pin 4 */
#define GPIO_PIN_5 BIT(5) /*!< GPIO pin 5 */
#define GPIO_PIN_6 BIT(6) /*!< GPIO pin 6 */
#define GPIO_PIN_7 BIT(7) /*!< GPIO pin 7 */
#define GPIO_PIN_8 BIT(8) /*!< GPIO pin 8 */
#define GPIO_PIN_9 BIT(9) /*!< GPIO pin 9 */
#define GPIO_PIN_10 BIT(10) /*!< GPIO pin 10 */
#define GPIO_PIN_11 BIT(11) /*!< GPIO pin 11 */
#define GPIO_PIN_12 BIT(12) /*!< GPIO pin 12 */
#define GPIO_PIN_13 BIT(13) /*!< GPIO pin 13 */
#define GPIO_PIN_14 BIT(14) /*!< GPIO pin 14 */
#define GPIO_PIN_15 BIT(15) /*!< GPIO pin 15 */
#define GPIO_PIN_ALL BITS(0, 15) /*!< GPIO pin all */
/* GPIO remap definitions */
#define GPIO_SPI0_REMAP ((uint32_t)0x00000001U) /*!< SPI0 remapping */
#define GPIO_I2C0_REMAP ((uint32_t)0x00000002U) /*!< I2C0 remapping */
#define GPIO_USART0_REMAP ((uint32_t)0x00000004U) /*!< USART0 remapping */
#define GPIO_USART1_REMAP ((uint32_t)0x00000008U) /*!< USART1 remapping */
#define GPIO_USART2_PARTIAL_REMAP ((uint32_t)0x00140010U) /*!< USART2 partial remapping */
#define GPIO_USART2_FULL_REMAP ((uint32_t)0x00140030U) /*!< USART2 full remapping */
#define GPIO_TIMER0_PARTIAL_REMAP ((uint32_t)0x00160040U) /*!< TIMER0 partial remapping */
#define GPIO_TIMER0_FULL_REMAP ((uint32_t)0x001600C0U) /*!< TIMER0 full remapping */
#define GPIO_TIMER1_PARTIAL_REMAP0 ((uint32_t)0x00180100U) /*!< TIMER1 partial remapping */
#define GPIO_TIMER1_PARTIAL_REMAP1 ((uint32_t)0x00180200U) /*!< TIMER1 partial remapping */
#define GPIO_TIMER1_FULL_REMAP ((uint32_t)0x00180300U) /*!< TIMER1 full remapping */
#define GPIO_TIMER2_PARTIAL_REMAP ((uint32_t)0x001A0800U) /*!< TIMER2 partial remapping */
#define GPIO_TIMER2_FULL_REMAP ((uint32_t)0x001A0C00U) /*!< TIMER2 full remapping */
#define GPIO_TIMER3_REMAP ((uint32_t)0x00001000U) /*!< TIMER3 remapping */
#define GPIO_CAN0_PARTIAL_REMAP ((uint32_t)0x001D4000U) /*!< CAN0 partial remapping */
#define GPIO_CAN0_FULL_REMAP ((uint32_t)0x001D6000U) /*!< CAN0 full remapping */
#define GPIO_PD01_REMAP ((uint32_t)0x00008000U) /*!< PD01 remapping */
#define GPIO_TIMER4CH3_IREMAP ((uint32_t)0x00200001U) /*!< TIMER4 channel3 internal remapping */
#define GPIO_CAN1_REMAP ((uint32_t)0x00200040U) /*!< CAN1 remapping */
#define GPIO_SWJ_NONJTRST_REMAP ((uint32_t)0x00300100U) /*!< JTAG-DP,but without NJTRST */
#define GPIO_SWJ_DISABLE_REMAP ((uint32_t)0x00300200U) /*!< JTAG-DP disabled */
#define GPIO_SPI2_REMAP ((uint32_t)0x00201100U) /*!< SPI2 remapping */
#define GPIO_TIMER1ITI1_REMAP ((uint32_t)0x00202000U) /*!< TIMER1 internal trigger 1 remapping */
#define GPIO_EXMC_NADV_REMAP ((uint32_t)0x80000400U) /*!< EXMC_NADV connect/disconnect */
/* function declarations */
/* reset GPIO port */
void gpio_deinit(uint32_t gpio_periph);
/* reset alternate function I/O(AFIO) */
void gpio_afio_deinit(void);
/* GPIO parameter initialization */
void gpio_init(uint32_t gpio_periph,uint32_t mode,uint32_t speed,uint32_t pin);
/* set GPIO pin bit */
void gpio_bit_set(uint32_t gpio_periph, uint32_t pin);
/* reset GPIO pin bit */
void gpio_bit_reset(uint32_t gpio_periph, uint32_t pin);
/* write data to the specified GPIO pin */
void gpio_bit_write(uint32_t gpio_periph, uint32_t pin, bit_status bit_value);
/* write data to the specified GPIO port */
void gpio_port_write(uint32_t gpio_periph, uint16_t data);
/* get GPIO pin input status */
FlagStatus gpio_input_bit_get(uint32_t gpio_periph, uint32_t pin);
/* get GPIO port input status */
uint16_t gpio_input_port_get(uint32_t gpio_periph);
/* get GPIO pin output status */
FlagStatus gpio_output_bit_get(uint32_t gpio_periph, uint32_t pin);
/* get GPIO port output status */
uint16_t gpio_output_port_get(uint32_t gpio_periph);
/* configure GPIO pin remap */
void gpio_pin_remap_config(uint32_t remap, ControlStatus newvalue);
/* select GPIO pin exti sources */
void gpio_exti_source_select(uint8_t output_port, uint8_t output_pin);
/* configure GPIO pin event output */
void gpio_event_output_config(uint8_t output_port, uint8_t output_pin);
/* enable GPIO pin event output */
void gpio_event_output_enable(void);
/* disable GPIO pin event output */
void gpio_event_output_disable(void);
/* lock GPIO pin bit */
void gpio_pin_lock(uint32_t gpio_periph, uint32_t pin);
#endif /* GD32VF103_GPIO_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_i2c.h
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/*!
\file gd32vf103_i2c.h
\brief definitions for the I2C
\version 2019-06-05, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_I2C_H
#define GD32VF103_I2C_H
#include "gd32vf103.h"
/* I2Cx(x=0,1) definitions */
#define I2C0 I2C_BASE /*!< I2C0 base address */
#define I2C1 (I2C_BASE + 0x00000400U) /*!< I2C1 base address */
/* registers definitions */
#define I2C_CTL0(i2cx) REG32((i2cx) + 0x00U) /*!< I2C control register 0 */
#define I2C_CTL1(i2cx) REG32((i2cx) + 0x04U) /*!< I2C control register 1 */
#define I2C_SADDR0(i2cx) REG32((i2cx) + 0x08U) /*!< I2C slave address register 0*/
#define I2C_SADDR1(i2cx) REG32((i2cx) + 0x0CU) /*!< I2C slave address register */
#define I2C_DATA(i2cx) REG32((i2cx) + 0x10U) /*!< I2C transfer buffer register */
#define I2C_STAT0(i2cx) REG32((i2cx) + 0x14U) /*!< I2C transfer status register 0 */
#define I2C_STAT1(i2cx) REG32((i2cx) + 0x18U) /*!< I2C transfer status register */
#define I2C_CKCFG(i2cx) REG32((i2cx) + 0x1CU) /*!< I2C clock configure register */
#define I2C_RT(i2cx) REG32((i2cx) + 0x20U) /*!< I2C rise time register */
#define I2C_FMPCFG(i2cx) REG32((i2cx) + 0x90U) /*!< I2C fast-mode-plus configure register */
/* bits definitions */
/* I2Cx_CTL0 */
#define I2C_CTL0_I2CEN BIT(0) /*!< peripheral enable */
#define I2C_CTL0_SMBEN BIT(1) /*!< SMBus mode */
#define I2C_CTL0_SMBSEL BIT(3) /*!< SMBus type */
#define I2C_CTL0_ARPEN BIT(4) /*!< ARP enable */
#define I2C_CTL0_PECEN BIT(5) /*!< PEC enable */
#define I2C_CTL0_GCEN BIT(6) /*!< general call enable */
#define I2C_CTL0_SS BIT(7) /*!< clock stretching disable (slave mode) */
#define I2C_CTL0_START BIT(8) /*!< start generation */
#define I2C_CTL0_STOP BIT(9) /*!< stop generation */
#define I2C_CTL0_ACKEN BIT(10) /*!< acknowledge enable */
#define I2C_CTL0_POAP BIT(11) /*!< acknowledge/PEC position (for data reception) */
#define I2C_CTL0_PECTRANS BIT(12) /*!< packet error checking */
#define I2C_CTL0_SALT BIT(13) /*!< SMBus alert */
#define I2C_CTL0_SRESET BIT(15) /*!< software reset */
/* I2Cx_CTL1 */
#define I2C_CTL1_I2CCLK BITS(0,5) /*!< I2CCLK[5:0] bits (peripheral clock frequency) */
#define I2C_CTL1_ERRIE BIT(8) /*!< error interrupt enable */
#define I2C_CTL1_EVIE BIT(9) /*!< event interrupt enable */
#define I2C_CTL1_BUFIE BIT(10) /*!< buffer interrupt enable */
#define I2C_CTL1_DMAON BIT(11) /*!< DMA requests enable */
#define I2C_CTL1_DMALST BIT(12) /*!< DMA last transfer */
/* I2Cx_SADDR0 */
#define I2C_SADDR0_ADDRESS0 BIT(0) /*!< bit 0 of a 10-bit address */
#define I2C_SADDR0_ADDRESS BITS(1,7) /*!< 7-bit address or bits 7:1 of a 10-bit address */
#define I2C_SADDR0_ADDRESS_H BITS(8,9) /*!< highest two bits of a 10-bit address */
#define I2C_SADDR0_ADDFORMAT BIT(15) /*!< address mode for the I2C slave */
/* I2Cx_SADDR1 */
#define I2C_SADDR1_DUADEN BIT(0) /*!< aual-address mode switch */
#define I2C_SADDR1_ADDRESS2 BITS(1,7) /*!< second I2C address for the slave in dual-address mode */
/* I2Cx_DATA */
#define I2C_DATA_TRB BITS(0,7) /*!< 8-bit data register */
/* I2Cx_STAT0 */
#define I2C_STAT0_SBSEND BIT(0) /*!< start bit (master mode) */
#define I2C_STAT0_ADDSEND BIT(1) /*!< address sent (master mode)/matched (slave mode) */
#define I2C_STAT0_BTC BIT(2) /*!< byte transfer finished */
#define I2C_STAT0_ADD10SEND BIT(3) /*!< 10-bit header sent (master mode) */
#define I2C_STAT0_STPDET BIT(4) /*!< stop detection (slave mode) */
#define I2C_STAT0_RBNE BIT(6) /*!< data register not empty (receivers) */
#define I2C_STAT0_TBE BIT(7) /*!< data register empty (transmitters) */
#define I2C_STAT0_BERR BIT(8) /*!< bus error */
#define I2C_STAT0_LOSTARB BIT(9) /*!< arbitration lost (master mode) */
#define I2C_STAT0_AERR BIT(10) /*!< acknowledge failure */
#define I2C_STAT0_OUERR BIT(11) /*!< overrun/underrun */
#define I2C_STAT0_PECERR BIT(12) /*!< PEC error in reception */
#define I2C_STAT0_SMBTO BIT(14) /*!< timeout signal in SMBus mode */
#define I2C_STAT0_SMBALT BIT(15) /*!< SMBus alert status */
/* I2Cx_STAT1 */
#define I2C_STAT1_MASTER BIT(0) /*!< master/slave */
#define I2C_STAT1_I2CBSY BIT(1) /*!< bus busy */
#define I2C_STAT1_TR BIT(2) /*!< transmitter/receiver */
#define I2C_STAT1_RXGC BIT(4) /*!< general call address (slave mode) */
#define I2C_STAT1_DEFSMB BIT(5) /*!< SMBus device default address (slave mode) */
#define I2C_STAT1_HSTSMB BIT(6) /*!< SMBus host header (slave mode) */
#define I2C_STAT1_DUMODF BIT(7) /*!< dual flag (slave mode) */
#define I2C_STAT1_PECV BITS(8,15) /*!< packet error checking value */
/* I2Cx_CKCFG */
#define I2C_CKCFG_CLKC BITS(0,11) /*!< clock control register in fast/standard mode (master mode) */
#define I2C_CKCFG_DTCY BIT(14) /*!< fast mode duty cycle */
#define I2C_CKCFG_FAST BIT(15) /*!< I2C speed selection in master mode */
/* I2Cx_RT */
#define I2C_RT_RISETIME BITS(0,5) /*!< maximum rise time in fast/standard mode (Master mode) */
/* I2Cx_FMPCFG */
#define I2C_FMPCFG_FMPEN BIT(0) /*!< fast mode plus enable bit */
/* constants definitions */
/* define the I2C bit position and its register index offset */
#define I2C_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define I2C_REG_VAL(i2cx, offset) (REG32((i2cx) + (((uint32_t)(offset) & 0xFFFFU) >> 6)))
#define I2C_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
#define I2C_REGIDX_BIT2(regidx, bitpos, regidx2, bitpos2) (((uint32_t)(regidx2) << 22) | (uint32_t)((bitpos2) << 16)\
| (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos)))
#define I2C_REG_VAL2(i2cx, offset) (REG32((i2cx) + ((uint32_t)(offset) >> 22)))
#define I2C_BIT_POS2(val) (((uint32_t)(val) & 0x1F0000U) >> 16)
/* register offset */
#define I2C_CTL1_REG_OFFSET 0x04U /*!< CTL1 register offset */
#define I2C_STAT0_REG_OFFSET 0x14U /*!< STAT0 register offset */
#define I2C_STAT1_REG_OFFSET 0x18U /*!< STAT1 register offset */
/* I2C flags */
typedef enum {
/* flags in STAT0 register */
I2C_FLAG_SBSEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 0U), /*!< start condition sent out in master mode */
I2C_FLAG_ADDSEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 1U), /*!< address is sent in master mode or received and matches in slave mode */
I2C_FLAG_BTC = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 2U), /*!< byte transmission finishes */
I2C_FLAG_ADD10SEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 3U), /*!< header of 10-bit address is sent in master mode */
I2C_FLAG_STPDET = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 4U), /*!< stop condition detected in slave mode */
I2C_FLAG_RBNE = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 6U), /*!< I2C_DATA is not Empty during receiving */
I2C_FLAG_TBE = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 7U), /*!< I2C_DATA is empty during transmitting */
I2C_FLAG_BERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 8U), /*!< a bus error occurs indication a unexpected start or stop condition on I2C bus */
I2C_FLAG_LOSTARB = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 9U), /*!< arbitration lost in master mode */
I2C_FLAG_AERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 10U), /*!< acknowledge error */
I2C_FLAG_OUERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 11U), /*!< over-run or under-run situation occurs in slave mode */
I2C_FLAG_PECERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 12U), /*!< PEC error when receiving data */
I2C_FLAG_SMBTO = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 14U), /*!< timeout signal in SMBus mode */
I2C_FLAG_SMBALT = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 15U), /*!< SMBus alert status */
/* flags in STAT1 register */
I2C_FLAG_MASTER = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 0U), /*!< a flag indicating whether I2C block is in master or slave mode */
I2C_FLAG_I2CBSY = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 1U), /*!< busy flag */
I2C_FLAG_TR = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 2U), /*!< whether the I2C is a transmitter or a receiver */
I2C_FLAG_RXGC = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 4U), /*!< general call address (00h) received */
I2C_FLAG_DEFSMB = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 5U), /*!< default address of SMBus device */
I2C_FLAG_HSTSMB = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 6U), /*!< SMBus host header detected in slave mode */
I2C_FLAG_DUMODF = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 7U), /*!< dual flag in slave mode indicating which address is matched in dual-address mode */
} i2c_flag_enum;
/* I2C interrupt flags */
typedef enum {
/* interrupt flags in CTL1 register */
I2C_INT_FLAG_SBSEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 0U), /*!< start condition sent out in master mode interrupt flag */
I2C_INT_FLAG_ADDSEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 1U), /*!< address is sent in master mode or received and matches in slave mode interrupt flag */
I2C_INT_FLAG_BTC = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 2U), /*!< byte transmission finishes */
I2C_INT_FLAG_ADD10SEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 3U), /*!< header of 10-bit address is sent in master mode interrupt flag */
I2C_INT_FLAG_STPDET = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 4U), /*!< stop condition detected in slave mode interrupt flag */
I2C_INT_FLAG_RBNE = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 6U), /*!< I2C_DATA is not Empty during receiving interrupt flag */
I2C_INT_FLAG_TBE = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U,I2C_STAT0_REG_OFFSET, 7U), /*!< I2C_DATA is empty during transmitting interrupt flag */
I2C_INT_FLAG_BERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 8U), /*!< a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag */
I2C_INT_FLAG_LOSTARB = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 9U), /*!< arbitration lost in master mode interrupt flag */
I2C_INT_FLAG_AERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 10U), /*!< acknowledge error interrupt flag */
I2C_INT_FLAG_OUERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 11U), /*!< over-run or under-run situation occurs in slave mode interrupt flag */
I2C_INT_FLAG_PECERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 12U), /*!< PEC error when receiving data interrupt flag */
I2C_INT_FLAG_SMBTO = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 14U), /*!< timeout signal in SMBus mode interrupt flag */
I2C_INT_FLAG_SMBALT = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U,I2C_STAT0_REG_OFFSET, 15U), /*!< SMBus Alert status interrupt flag */
} i2c_interrupt_flag_enum;
/* I2C interrupt enable or disable */
typedef enum {
/* interrupt in CTL1 register */
I2C_INT_ERR = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 8U), /*!< error interrupt enable */
I2C_INT_EV = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 9U), /*!< event interrupt enable */
I2C_INT_BUF = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 10U), /*!< buffer interrupt enable */
} i2c_interrupt_enum;
/* SMBus/I2C mode switch and SMBus type selection */
#define I2C_I2CMODE_ENABLE ((uint32_t)0x00000000U) /*!< I2C mode */
#define I2C_SMBUSMODE_ENABLE I2C_CTL0_SMBEN /*!< SMBus mode */
/* SMBus/I2C mode switch and SMBus type selection */
#define I2C_SMBUS_DEVICE ((uint32_t)0x00000000U) /*!< SMBus mode device type */
#define I2C_SMBUS_HOST I2C_CTL0_SMBSEL /*!< SMBus mode host type */
/* I2C transfer direction */
#define I2C_RECEIVER ((uint32_t)0x00000001U) /*!< receiver */
#define I2C_TRANSMITTER ((uint32_t)0xFFFFFFFEU) /*!< transmitter */
/* whether or not to send an ACK */
#define I2C_ACK_DISABLE ((uint32_t)0x00000000U) /*!< ACK will be not sent */
#define I2C_ACK_ENABLE ((uint32_t)0x00000001U) /*!< ACK will be sent */
/* I2C POAP position*/
#define I2C_ACKPOS_NEXT ((uint32_t)0x00000000U) /*!< ACKEN bit decides whether or not to send ACK for the next byte */
#define I2C_ACKPOS_CURRENT ((uint32_t)0x00000001U) /*!< ACKEN bit decides whether or not to send ACK or not for the current byte */
/* I2C dual-address mode switch */
#define I2C_DUADEN_DISABLE ((uint32_t)0x00000000U) /*!< dual-address mode disabled */
#define I2C_DUADEN_ENABLE ((uint32_t)0x00000001U) /*!< dual-address mode enabled */
/* whether or not to stretch SCL low */
#define I2C_SCLSTRETCH_ENABLE ((uint32_t)0x00000000U) /*!< SCL stretching is enabled */
#define I2C_SCLSTRETCH_DISABLE I2C_CTL0_SS /*!< SCL stretching is disabled */
/* whether or not to response to a general call */
#define I2C_GCEN_ENABLE I2C_CTL0_GCEN /*!< slave will response to a general call */
#define I2C_GCEN_DISABLE ((uint32_t)0x00000000U) /*!< slave will not response to a general call */
/* software reset I2C */
#define I2C_SRESET_SET I2C_CTL0_SRESET /*!< I2C is under reset */
#define I2C_SRESET_RESET ((uint32_t)0x00000000U) /*!< I2C is not under reset */
/* I2C DMA mode configure */
/* DMA mode switch */
#define I2C_DMA_ON I2C_CTL1_DMAON /*!< DMA mode enabled */
#define I2C_DMA_OFF ((uint32_t)0x00000000U) /*!< DMA mode disabled */
/* flag indicating DMA last transfer */
#define I2C_DMALST_ON I2C_CTL1_DMALST /*!< next DMA EOT is the last transfer */
#define I2C_DMALST_OFF ((uint32_t)0x00000000U) /*!< next DMA EOT is not the last transfer */
/* I2C PEC configure */
/* PEC enable */
#define I2C_PEC_ENABLE I2C_CTL0_PECEN /*!< PEC calculation on */
#define I2C_PEC_DISABLE ((uint32_t)0x00000000U) /*!< PEC calculation off */
/* PEC transfer */
#define I2C_PECTRANS_ENABLE I2C_CTL0_PECTRANS /*!< transfer PEC */
#define I2C_PECTRANS_DISABLE ((uint32_t)0x00000000U) /*!< not transfer PEC value */
/* I2C SMBus configure */
/* issue or not alert through SMBA pin */
#define I2C_SALTSEND_ENABLE I2C_CTL0_SALT /*!< issue alert through SMBA pin */
#define I2C_SALTSEND_DISABLE ((uint32_t)0x00000000U) /*!< not issue alert through SMBA */
/* ARP protocol in SMBus switch */
#define I2C_ARP_ENABLE I2C_CTL0_ARPEN /*!< ARP enable */
#define I2C_ARP_DISABLE ((uint32_t)0x00000000U) /*!< ARP disable */
/* transmit I2C data */
#define DATA_TRANS(regval) (BITS(0,7) & ((uint32_t)(regval) << 0))
/* receive I2C data */
#define DATA_RECV(regval) GET_BITS((uint32_t)(regval), 0, 7)
/* I2C duty cycle in fast mode */
#define I2C_DTCY_2 ((uint32_t)0x00000000U) /*!< I2C fast mode Tlow/Thigh = 2 */
#define I2C_DTCY_16_9 I2C_CKCFG_DTCY /*!< I2C fast mode Tlow/Thigh = 16/9 */
/* address mode for the I2C slave */
#define I2C_ADDFORMAT_7BITS ((uint32_t)0x00000000U) /*!< address:7 bits */
#define I2C_ADDFORMAT_10BITS I2C_SADDR0_ADDFORMAT /*!< address:10 bits */
/* function declarations */
/* reset I2C */
void i2c_deinit(uint32_t i2c_periph);
/* configure I2C clock */
void i2c_clock_config(uint32_t i2c_periph, uint32_t clkspeed, uint32_t dutycyc);
/* configure I2C address */
void i2c_mode_addr_config(uint32_t i2c_periph, uint32_t mode,uint32_t addformat, uint32_t addr);
/* SMBus type selection */
void i2c_smbus_type_config(uint32_t i2c_periph, uint32_t type);
/* whether or not to send an ACK */
void i2c_ack_config(uint32_t i2c_periph, uint32_t ack);
/* configure I2C POAP position */
void i2c_ackpos_config(uint32_t i2c_periph, uint32_t pos);
/* master sends slave address */
void i2c_master_addressing(uint32_t i2c_periph, uint32_t addr,uint32_t trandirection);
/* enable dual-address mode */
void i2c_dualaddr_enable(uint32_t i2c_periph, uint32_t dualaddr);
/* disable dual-address mode */
void i2c_dualaddr_disable(uint32_t i2c_periph);
/* enable I2C */
void i2c_enable(uint32_t i2c_periph);
/* disable I2C */
void i2c_disable(uint32_t i2c_periph);
/* generate a START condition on I2C bus */
void i2c_start_on_bus(uint32_t i2c_periph);
/* generate a STOP condition on I2C bus */
void i2c_stop_on_bus(uint32_t i2c_periph);
/* I2C transmit data function */
void i2c_data_transmit(uint32_t i2c_periph, uint8_t data);
/* I2C receive data function */
uint8_t i2c_data_receive(uint32_t i2c_periph);
/* enable I2C DMA mode */
void i2c_dma_enable(uint32_t i2c_periph, uint32_t dmastate);
/* configure whether next DMA EOT is DMA last transfer or not */
void i2c_dma_last_transfer_config(uint32_t i2c_periph, uint32_t dmalast);
/* whether to stretch SCL low when data is not ready in slave mode */
void i2c_stretch_scl_low_config(uint32_t i2c_periph, uint32_t stretchpara);
/* whether or not to response to a general call */
void i2c_slave_response_to_gcall_config(uint32_t i2c_periph, uint32_t gcallpara);
/* software reset I2C */
void i2c_software_reset_config(uint32_t i2c_periph, uint32_t sreset);
/* I2C PEC calculation on or off */
void i2c_pec_enable(uint32_t i2c_periph, uint32_t pecstate);
/* I2C whether to transfer PEC value */
void i2c_pec_transfer_enable(uint32_t i2c_periph, uint32_t pecpara);
/* packet error checking value */
uint8_t i2c_pec_value_get(uint32_t i2c_periph);
/* I2C issue alert through SMBA pin */
void i2c_smbus_issue_alert(uint32_t i2c_periph, uint32_t smbuspara);
/* I2C ARP protocol in SMBus switch */
void i2c_smbus_arp_enable(uint32_t i2c_periph, uint32_t arpstate);
/* check I2C flag is set or not */
FlagStatus i2c_flag_get(uint32_t i2c_periph, i2c_flag_enum flag);
/* clear I2C flag */
void i2c_flag_clear(uint32_t i2c_periph, i2c_flag_enum flag);
/* enable I2C interrupt */
void i2c_interrupt_enable(uint32_t i2c_periph, i2c_interrupt_enum interrupt);
/* disable I2C interrupt */
void i2c_interrupt_disable(uint32_t i2c_periph, i2c_interrupt_enum interrupt);
/* check I2C interrupt flag */
FlagStatus i2c_interrupt_flag_get(uint32_t i2c_periph,i2c_interrupt_flag_enum int_flag);
/* clear I2C interrupt flag */
void i2c_interrupt_flag_clear(uint32_t i2c_periph,i2c_interrupt_flag_enum int_flag);
#endif /* GD32VF103_I2C_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_pmu.h
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/*!
\file gd32vf103_pmu.h
\brief definitions for the PMU
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_PMU_H
#define GD32VF103_PMU_H
#include "gd32vf103.h"
/* PMU definitions */
#define PMU PMU_BASE /*!< PMU base address */
/* registers definitions */
#define PMU_CTL REG32((PMU) + 0x00U) /*!< PMU control register */
#define PMU_CS REG32((PMU) + 0x04U) /*!< PMU control and status register */
/* bits definitions */
/* PMU_CTL */
#define PMU_CTL_LDOLP BIT(0) /*!< LDO low power mode */
#define PMU_CTL_STBMOD BIT(1) /*!< standby mode */
#define PMU_CTL_WURST BIT(2) /*!< wakeup flag reset */
#define PMU_CTL_STBRST BIT(3) /*!< standby flag reset */
#define PMU_CTL_LVDEN BIT(4) /*!< low voltage detector enable */
#define PMU_CTL_LVDT BITS(5,7) /*!< low voltage detector threshold */
#define PMU_CTL_BKPWEN BIT(8) /*!< backup domain write enable */
/* PMU_CS */
#define PMU_CS_WUF BIT(0) /*!< wakeup flag */
#define PMU_CS_STBF BIT(1) /*!< standby flag */
#define PMU_CS_LVDF BIT(2) /*!< low voltage detector status flag */
#define PMU_CS_WUPEN BIT(8) /*!< wakeup pin enable */
/* constants definitions */
/* PMU low voltage detector threshold definitions */
#define CTL_LVDT(regval) (BITS(5,7)&((uint32_t)(regval) << 5))
#define PMU_LVDT_0 CTL_LVDT(0) /*!< voltage threshold is 2.2V */
#define PMU_LVDT_1 CTL_LVDT(1) /*!< voltage threshold is 2.3V */
#define PMU_LVDT_2 CTL_LVDT(2) /*!< voltage threshold is 2.4V */
#define PMU_LVDT_3 CTL_LVDT(3) /*!< voltage threshold is 2.5V */
#define PMU_LVDT_4 CTL_LVDT(4) /*!< voltage threshold is 2.6V */
#define PMU_LVDT_5 CTL_LVDT(5) /*!< voltage threshold is 2.7V */
#define PMU_LVDT_6 CTL_LVDT(6) /*!< voltage threshold is 2.8V */
#define PMU_LVDT_7 CTL_LVDT(7) /*!< voltage threshold is 2.9V */
/* PMU flag definitions */
#define PMU_FLAG_WAKEUP PMU_CS_WUF /*!< wakeup flag status */
#define PMU_FLAG_STANDBY PMU_CS_STBF /*!< standby flag status */
#define PMU_FLAG_LVD PMU_CS_LVDF /*!< lvd flag status */
/* PMU ldo definitions */
#define PMU_LDO_NORMAL ((uint32_t)0x00000000U) /*!< LDO normal work when PMU enter deepsleep mode */
#define PMU_LDO_LOWPOWER PMU_CTL_LDOLP /*!< LDO work at low power status when PMU enter deepsleep mode */
/* PMU flag reset definitions */
#define PMU_FLAG_RESET_WAKEUP ((uint8_t)0x00U) /*!< wakeup flag reset */
#define PMU_FLAG_RESET_STANDBY ((uint8_t)0x01U) /*!< standby flag reset */
/* PMU command constants definitions */
#define WFI_CMD ((uint8_t)0x00U) /*!< use WFI command */
#define WFE_CMD ((uint8_t)0x01U) /*!< use WFE command */
/* function declarations */
/* reset PMU registers */
void pmu_deinit(void);
/* select low voltage detector threshold */
void pmu_lvd_select(uint32_t lvdt_n);
/* disable PMU lvd */
void pmu_lvd_disable(void);
/* set PMU mode */
/* PMU work at sleep mode */
void pmu_to_sleepmode(uint8_t sleepmodecmd);
/* PMU work at deepsleep mode */
void pmu_to_deepsleepmode(uint32_t ldo, uint8_t deepsleepmodecmd);
/* PMU work at standby mode */
void pmu_to_standbymode(uint8_t standbymodecmd);
/* enable PMU wakeup pin */
void pmu_wakeup_pin_enable(void);
/* disable PMU wakeup pin */
void pmu_wakeup_pin_disable(void);
/* backup related functions */
/* enable write access to the registers in backup domain */
void pmu_backup_write_enable(void);
/* disable write access to the registers in backup domain */
void pmu_backup_write_disable(void);
/* flag functions */
/* get flag state */
FlagStatus pmu_flag_get(uint32_t flag);
/* clear flag bit */
void pmu_flag_clear(uint32_t flag_reset);
#endif /* GD32VF103_PMU_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_rcu.h
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/*!
\file gd32vf103_rcu.h
\brief definitions for the RCU
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_RCU_H
#define GD32VF103_RCU_H
#include "gd32vf103.h"
/* RCU definitions */
#define RCU RCU_BASE
/* registers definitions */
#define RCU_CTL REG32(RCU + 0x00U) /*!< control register */
#define RCU_CFG0 REG32(RCU + 0x04U) /*!< clock configuration register 0 */
#define RCU_INT REG32(RCU + 0x08U) /*!< clock interrupt register */
#define RCU_APB2RST REG32(RCU + 0x0CU) /*!< APB2 reset register */
#define RCU_APB1RST REG32(RCU + 0x10U) /*!< APB1 reset register */
#define RCU_AHBEN REG32(RCU + 0x14U) /*!< AHB1 enable register */
#define RCU_APB2EN REG32(RCU + 0x18U) /*!< APB2 enable register */
#define RCU_APB1EN REG32(RCU + 0x1CU) /*!< APB1 enable register */
#define RCU_BDCTL REG32(RCU + 0x20U) /*!< backup domain control register */
#define RCU_RSTSCK REG32(RCU + 0x24U) /*!< reset source / clock register */
#define RCU_AHBRST REG32(RCU + 0x28U) /*!< AHB reset register */
#define RCU_CFG1 REG32(RCU + 0x2CU) /*!< clock configuration register 1 */
#define RCU_DSV REG32(RCU + 0x34U) /*!< deep-sleep mode voltage register */
/* bits definitions */
/* RCU_CTL */
#define RCU_CTL_IRC8MEN BIT(0) /*!< internal high speed oscillator enable */
#define RCU_CTL_IRC8MSTB BIT(1) /*!< IRC8M high speed internal oscillator stabilization flag */
#define RCU_CTL_IRC8MADJ BITS(3,7) /*!< high speed internal oscillator clock trim adjust value */
#define RCU_CTL_IRC8MCALIB BITS(8,15) /*!< high speed internal oscillator calibration value register */
#define RCU_CTL_HXTALEN BIT(16) /*!< external high speed oscillator enable */
#define RCU_CTL_HXTALSTB BIT(17) /*!< external crystal oscillator clock stabilization flag */
#define RCU_CTL_HXTALBPS BIT(18) /*!< external crystal oscillator clock bypass mode enable */
#define RCU_CTL_CKMEN BIT(19) /*!< HXTAL clock monitor enable */
#define RCU_CTL_PLLEN BIT(24) /*!< PLL enable */
#define RCU_CTL_PLLSTB BIT(25) /*!< PLL clock stabilization flag */
#define RCU_CTL_PLL1EN BIT(26) /*!< PLL1 enable */
#define RCU_CTL_PLL1STB BIT(27) /*!< PLL1 clock stabilization flag */
#define RCU_CTL_PLL2EN BIT(28) /*!< PLL2 enable */
#define RCU_CTL_PLL2STB BIT(29) /*!< PLL2 clock stabilization flag */
#define RCU_CFG0_SCS BITS(0,1) /*!< system clock switch */
#define RCU_CFG0_SCSS BITS(2,3) /*!< system clock switch status */
#define RCU_CFG0_AHBPSC BITS(4,7) /*!< AHB prescaler selection */
#define RCU_CFG0_APB1PSC BITS(8,10) /*!< APB1 prescaler selection */
#define RCU_CFG0_APB2PSC BITS(11,13) /*!< APB2 prescaler selection */
#define RCU_CFG0_ADCPSC BITS(14,15) /*!< ADC prescaler selection */
#define RCU_CFG0_PLLSEL BIT(16) /*!< PLL clock source selection */
#define RCU_CFG0_PREDV0_LSB BIT(17) /*!< the LSB of PREDV0 division factor */
#define RCU_CFG0_PLLMF BITS(18,21) /*!< PLL clock multiplication factor */
#define RCU_CFG0_USBFSPSC BITS(22,23) /*!< USBFS clock prescaler selection */
#define RCU_CFG0_CKOUT0SEL BITS(24,27) /*!< CKOUT0 clock source selection */
#define RCU_CFG0_ADCPSC_2 BIT(28) /*!< bit 2 of ADCPSC */
#define RCU_CFG0_PLLMF_4 BIT(29) /*!< bit 4 of PLLMF */
/* RCU_INT */
#define RCU_INT_IRC40KSTBIF BIT(0) /*!< IRC40K stabilization interrupt flag */
#define RCU_INT_LXTALSTBIF BIT(1) /*!< LXTAL stabilization interrupt flag */
#define RCU_INT_IRC8MSTBIF BIT(2) /*!< IRC8M stabilization interrupt flag */
#define RCU_INT_HXTALSTBIF BIT(3) /*!< HXTAL stabilization interrupt flag */
#define RCU_INT_PLLSTBIF BIT(4) /*!< PLL stabilization interrupt flag */
#define RCU_INT_PLL1STBIF BIT(5) /*!< PLL1 stabilization interrupt flag */
#define RCU_INT_PLL2STBIF BIT(6) /*!< PLL2 stabilization interrupt flag */
#define RCU_INT_CKMIF BIT(7) /*!< HXTAL clock stuck interrupt flag */
#define RCU_INT_IRC40KSTBIE BIT(8) /*!< IRC40K stabilization interrupt enable */
#define RCU_INT_LXTALSTBIE BIT(9) /*!< LXTAL stabilization interrupt enable */
#define RCU_INT_IRC8MSTBIE BIT(10) /*!< IRC8M stabilization interrupt enable */
#define RCU_INT_HXTALSTBIE BIT(11) /*!< HXTAL stabilization interrupt enable */
#define RCU_INT_PLLSTBIE BIT(12) /*!< PLL stabilization interrupt enable */
#define RCU_INT_PLL1STBIE BIT(13) /*!< PLL1 stabilization interrupt enable */
#define RCU_INT_PLL2STBIE BIT(14) /*!< PLL2 stabilization interrupt enable */
#define RCU_INT_IRC40KSTBIC BIT(16) /*!< IRC40K stabilization interrupt clear */
#define RCU_INT_LXTALSTBIC BIT(17) /*!< LXTAL stabilization interrupt clear */
#define RCU_INT_IRC8MSTBIC BIT(18) /*!< IRC8M stabilization interrupt clear */
#define RCU_INT_HXTALSTBIC BIT(19) /*!< HXTAL stabilization interrupt clear */
#define RCU_INT_PLLSTBIC BIT(20) /*!< PLL stabilization interrupt clear */
#define RCU_INT_PLL1STBIC BIT(21) /*!< PLL1 stabilization interrupt clear */
#define RCU_INT_PLL2STBIC BIT(22) /*!< PLL2 stabilization interrupt clear */
#define RCU_INT_CKMIC BIT(23) /*!< HXTAL clock stuck interrupt clear */
/* RCU_APB2RST */
#define RCU_APB2RST_AFRST BIT(0) /*!< alternate function I/O reset */
#define RCU_APB2RST_PARST BIT(2) /*!< GPIO port A reset */
#define RCU_APB2RST_PBRST BIT(3) /*!< GPIO port B reset */
#define RCU_APB2RST_PCRST BIT(4) /*!< GPIO port C reset */
#define RCU_APB2RST_PDRST BIT(5) /*!< GPIO port D reset */
#define RCU_APB2RST_PERST BIT(6) /*!< GPIO port E reset */
#define RCU_APB2RST_ADC0RST BIT(9) /*!< ADC0 reset */
#define RCU_APB2RST_ADC1RST BIT(10) /*!< ADC1 reset */
#define RCU_APB2RST_TIMER0RST BIT(11) /*!< TIMER0 reset */
#define RCU_APB2RST_SPI0RST BIT(12) /*!< SPI0 reset */
#define RCU_APB2RST_USART0RST BIT(14) /*!< USART0 reset */
/* RCU_APB1RST */
#define RCU_APB1RST_TIMER1RST BIT(0) /*!< TIMER1 reset */
#define RCU_APB1RST_TIMER2RST BIT(1) /*!< TIMER2 reset */
#define RCU_APB1RST_TIMER3RST BIT(2) /*!< TIMER3 reset */
#define RCU_APB1RST_TIMER4RST BIT(3) /*!< TIMER4 reset */
#define RCU_APB1RST_TIMER5RST BIT(4) /*!< TIMER5 reset */
#define RCU_APB1RST_TIMER6RST BIT(5) /*!< TIMER6 reset */
#define RCU_APB1RST_WWDGTRST BIT(11) /*!< WWDGT reset */
#define RCU_APB1RST_SPI1RST BIT(14) /*!< SPI1 reset */
#define RCU_APB1RST_SPI2RST BIT(15) /*!< SPI2 reset */
#define RCU_APB1RST_USART1RST BIT(17) /*!< USART1 reset */
#define RCU_APB1RST_USART2RST BIT(18) /*!< USART2 reset */
#define RCU_APB1RST_UART3RST BIT(19) /*!< UART3 reset */
#define RCU_APB1RST_UART4RST BIT(20) /*!< UART4 reset */
#define RCU_APB1RST_I2C0RST BIT(21) /*!< I2C0 reset */
#define RCU_APB1RST_I2C1RST BIT(22) /*!< I2C1 reset */
#define RCU_APB1RST_CAN0RST BIT(25) /*!< CAN0 reset */
#define RCU_APB1RST_CAN1RST BIT(26) /*!< CAN1 reset */
#define RCU_APB1RST_BKPIRST BIT(27) /*!< backup interface reset */
#define RCU_APB1RST_PMURST BIT(28) /*!< PMU reset */
#define RCU_APB1RST_DACRST BIT(29) /*!< DAC reset */
/* RCU_AHBEN */
#define RCU_AHBEN_DMA0EN BIT(0) /*!< DMA0 clock enable */
#define RCU_AHBEN_DMA1EN BIT(1) /*!< DMA1 clock enable */
#define RCU_AHBEN_SRAMSPEN BIT(2) /*!< SRAM clock enable when sleep mode */
#define RCU_AHBEN_FMCSPEN BIT(4) /*!< FMC clock enable when sleep mode */
#define RCU_AHBEN_CRCEN BIT(6) /*!< CRC clock enable */
#define RCU_AHBEN_EXMCEN BIT(8) /*!< EXMC clock enable */
#define RCU_AHBEN_USBFSEN BIT(12) /*!< USBFS clock enable */
/* RCU_APB2EN */
#define RCU_APB2EN_AFEN BIT(0) /*!< alternate function IO clock enable */
#define RCU_APB2EN_PAEN BIT(2) /*!< GPIO port A clock enable */
#define RCU_APB2EN_PBEN BIT(3) /*!< GPIO port B clock enable */
#define RCU_APB2EN_PCEN BIT(4) /*!< GPIO port C clock enable */
#define RCU_APB2EN_PDEN BIT(5) /*!< GPIO port D clock enable */
#define RCU_APB2EN_PEEN BIT(6) /*!< GPIO port E clock enable */
#define RCU_APB2EN_ADC0EN BIT(9) /*!< ADC0 clock enable */
#define RCU_APB2EN_ADC1EN BIT(10) /*!< ADC1 clock enable */
#define RCU_APB2EN_TIMER0EN BIT(11) /*!< TIMER0 clock enable */
#define RCU_APB2EN_SPI0EN BIT(12) /*!< SPI0 clock enable */
#define RCU_APB2EN_USART0EN BIT(14) /*!< USART0 clock enable */
/* RCU_APB1EN */
#define RCU_APB1EN_TIMER1EN BIT(0) /*!< TIMER1 clock enable */
#define RCU_APB1EN_TIMER2EN BIT(1) /*!< TIMER2 clock enable */
#define RCU_APB1EN_TIMER3EN BIT(2) /*!< TIMER3 clock enable */
#define RCU_APB1EN_TIMER4EN BIT(3) /*!< TIMER4 clock enable */
#define RCU_APB1EN_TIMER5EN BIT(4) /*!< TIMER5 clock enable */
#define RCU_APB1EN_TIMER6EN BIT(5) /*!< TIMER6 clock enable */
#define RCU_APB1EN_WWDGTEN BIT(11) /*!< WWDGT clock enable */
#define RCU_APB1EN_SPI1EN BIT(14) /*!< SPI1 clock enable */
#define RCU_APB1EN_SPI2EN BIT(15) /*!< SPI2 clock enable */
#define RCU_APB1EN_USART1EN BIT(17) /*!< USART1 clock enable */
#define RCU_APB1EN_USART2EN BIT(18) /*!< USART2 clock enable */
#define RCU_APB1EN_UART3EN BIT(19) /*!< UART3 clock enable */
#define RCU_APB1EN_UART4EN BIT(20) /*!< UART4 clock enable */
#define RCU_APB1EN_I2C0EN BIT(21) /*!< I2C0 clock enable */
#define RCU_APB1EN_I2C1EN BIT(22) /*!< I2C1 clock enable */
#define RCU_APB1EN_CAN0EN BIT(25) /*!< CAN0 clock enable */
#define RCU_APB1EN_CAN1EN BIT(26) /*!< CAN1 clock enable */
#define RCU_APB1EN_BKPIEN BIT(27) /*!< backup interface clock enable */
#define RCU_APB1EN_PMUEN BIT(28) /*!< PMU clock enable */
#define RCU_APB1EN_DACEN BIT(29) /*!< DAC clock enable */
/* RCU_BDCTL */
#define RCU_BDCTL_LXTALEN BIT(0) /*!< LXTAL enable */
#define RCU_BDCTL_LXTALSTB BIT(1) /*!< low speed crystal oscillator stabilization flag */
#define RCU_BDCTL_LXTALBPS BIT(2) /*!< LXTAL bypass mode enable */
#define RCU_BDCTL_RTCSRC BITS(8,9) /*!< RTC clock entry selection */
#define RCU_BDCTL_RTCEN BIT(15) /*!< RTC clock enable */
#define RCU_BDCTL_BKPRST BIT(16) /*!< backup domain reset */
/* RCU_RSTSCK */
#define RCU_RSTSCK_IRC40KEN BIT(0) /*!< IRC40K enable */
#define RCU_RSTSCK_IRC40KSTB BIT(1) /*!< IRC40K stabilization flag */
#define RCU_RSTSCK_RSTFC BIT(24) /*!< reset flag clear */
#define RCU_RSTSCK_EPRSTF BIT(26) /*!< external pin reset flag */
#define RCU_RSTSCK_PORRSTF BIT(27) /*!< power reset flag */
#define RCU_RSTSCK_SWRSTF BIT(28) /*!< software reset flag */
#define RCU_RSTSCK_FWDGTRSTF BIT(29) /*!< free watchdog timer reset flag */
#define RCU_RSTSCK_WWDGTRSTF BIT(30) /*!< window watchdog timer reset flag */
#define RCU_RSTSCK_LPRSTF BIT(31) /*!< low-power reset flag */
/* RCU_AHBRST */
#define RCU_AHBRST_USBFSRST BIT(12) /*!< USBFS reset */
/* RCU_CFG1 */
#define RCU_CFG1_PREDV0 BITS(0,3) /*!< PREDV0 division factor */
#define RCU_CFG1_PREDV1 BITS(4,7) /*!< PREDV1 division factor */
#define RCU_CFG1_PLL1MF BITS(8,11) /*!< PLL1 clock multiplication factor */
#define RCU_CFG1_PLL2MF BITS(12,15) /*!< PLL2 clock multiplication factor */
#define RCU_CFG1_PREDV0SEL BIT(16) /*!< PREDV0 input clock source selection */
#define RCU_CFG1_I2S1SEL BIT(17) /*!< I2S1 clock source selection */
#define RCU_CFG1_I2S2SEL BIT(18) /*!< I2S2 clock source selection */
/* RCU_DSV */
#define RCU_DSV_DSLPVS BITS(0,1) /*!< deep-sleep mode voltage select */
/* constants definitions */
/* define the peripheral clock enable bit position and its register index offset */
#define RCU_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define RCU_REG_VAL(periph) (REG32(RCU + ((uint32_t)(periph) >> 6)))
#define RCU_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
/* register offset */
/* peripherals enable */
#define AHBEN_REG_OFFSET 0x14U /*!< AHB enable register offset */
#define APB1EN_REG_OFFSET 0x1CU /*!< APB1 enable register offset */
#define APB2EN_REG_OFFSET 0x18U /*!< APB2 enable register offset */
/* peripherals reset */
#define AHBRST_REG_OFFSET 0x28U /*!< AHB reset register offset */
#define APB1RST_REG_OFFSET 0x10U /*!< APB1 reset register offset */
#define APB2RST_REG_OFFSET 0x0CU /*!< APB2 reset register offset */
#define RSTSCK_REG_OFFSET 0x24U /*!< reset source/clock register offset */
/* clock control */
#define CTL_REG_OFFSET 0x00U /*!< control register offset */
#define BDCTL_REG_OFFSET 0x20U /*!< backup domain control register offset */
/* clock stabilization and stuck interrupt */
#define INT_REG_OFFSET 0x08U /*!< clock interrupt register offset */
/* configuration register */
#define CFG0_REG_OFFSET 0x04U /*!< clock configuration register 0 offset */
#define CFG1_REG_OFFSET 0x2CU /*!< clock configuration register 1 offset */
/* peripheral clock enable */
typedef enum {
/* AHB peripherals */
RCU_DMA0 = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 0U), /*!< DMA0 clock */
RCU_DMA1 = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 1U), /*!< DMA1 clock */
RCU_CRC = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 6U), /*!< CRC clock */
RCU_EXMC = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 8U), /*!< EXMC clock */
RCU_USBFS = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 12U), /*!< USBFS clock */
/* APB1 peripherals */
RCU_TIMER1 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 0U), /*!< TIMER1 clock */
RCU_TIMER2 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 1U), /*!< TIMER2 clock */
RCU_TIMER3 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 2U), /*!< TIMER3 clock */
RCU_TIMER4 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 3U), /*!< TIMER4 clock */
RCU_TIMER5 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 4U), /*!< TIMER5 clock */
RCU_TIMER6 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 5U), /*!< TIMER6 clock */
RCU_WWDGT = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 11U), /*!< WWDGT clock */
RCU_SPI1 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 14U), /*!< SPI1 clock */
RCU_SPI2 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 15U), /*!< SPI2 clock */
RCU_USART1 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 17U), /*!< USART1 clock */
RCU_USART2 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 18U), /*!< USART2 clock */
RCU_UART3 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 19U), /*!< UART3 clock */
RCU_UART4 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 20U), /*!< UART4 clock */
RCU_I2C0 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 21U), /*!< I2C0 clock */
RCU_I2C1 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 22U), /*!< I2C1 clock */
RCU_CAN0 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 25U), /*!< CAN0 clock */
RCU_CAN1 = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 26U), /*!< CAN1 clock */
RCU_BKPI = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 27U), /*!< BKPI clock */
RCU_PMU = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 28U), /*!< PMU clock */
RCU_DAC = RCU_REGIDX_BIT(APB1EN_REG_OFFSET, 29U), /*!< DAC clock */
RCU_RTC = RCU_REGIDX_BIT(BDCTL_REG_OFFSET, 15U), /*!< RTC clock */
/* APB2 peripherals */
RCU_AF = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 0U), /*!< alternate function clock */
RCU_GPIOA = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 2U), /*!< GPIOA clock */
RCU_GPIOB = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 3U), /*!< GPIOB clock */
RCU_GPIOC = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 4U), /*!< GPIOC clock */
RCU_GPIOD = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 5U), /*!< GPIOD clock */
RCU_GPIOE = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 6U), /*!< GPIOE clock */
RCU_ADC0 = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 9U), /*!< ADC0 clock */
RCU_ADC1 = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 10U), /*!< ADC1 clock */
RCU_TIMER0 = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 11U), /*!< TIMER0 clock */
RCU_SPI0 = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 12U), /*!< SPI0 clock */
RCU_USART0 = RCU_REGIDX_BIT(APB2EN_REG_OFFSET, 14U), /*!< USART0 clock */
} rcu_periph_enum;
/* peripheral clock enable when sleep mode*/
typedef enum {
/* AHB peripherals */
RCU_SRAM_SLP = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 2U), /*!< SRAM clock */
RCU_FMC_SLP = RCU_REGIDX_BIT(AHBEN_REG_OFFSET, 4U), /*!< FMC clock */
} rcu_periph_sleep_enum;
/* peripherals reset */
typedef enum {
/* AHB peripherals */
RCU_USBFSRST = RCU_REGIDX_BIT(AHBRST_REG_OFFSET, 12U), /*!< USBFS clock reset */
/* APB1 peripherals */
RCU_TIMER1RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 0U), /*!< TIMER1 clock reset */
RCU_TIMER2RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 1U), /*!< TIMER2 clock reset */
RCU_TIMER3RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 2U), /*!< TIMER3 clock reset */
RCU_TIMER4RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 3U), /*!< TIMER4 clock reset */
RCU_TIMER5RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 4U), /*!< TIMER5 clock reset */
RCU_TIMER6RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 5U), /*!< TIMER6 clock reset */
RCU_WWDGTRST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 11U), /*!< WWDGT clock reset */
RCU_SPI1RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 14U), /*!< SPI1 clock reset */
RCU_SPI2RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 15U), /*!< SPI2 clock reset */
RCU_USART1RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 17U), /*!< USART1 clock reset */
RCU_USART2RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 18U), /*!< USART2 clock reset */
RCU_UART3RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 19U), /*!< UART3 clock reset */
RCU_UART4RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 20U), /*!< UART4 clock reset */
RCU_I2C0RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 21U), /*!< I2C0 clock reset */
RCU_I2C1RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 22U), /*!< I2C1 clock reset */
RCU_CAN0RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 25U), /*!< CAN0 clock reset */
RCU_CAN1RST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 26U), /*!< CAN1 clock reset */
RCU_BKPIRST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 27U), /*!< BKPI clock reset */
RCU_PMURST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 28U), /*!< PMU clock reset */
RCU_DACRST = RCU_REGIDX_BIT(APB1RST_REG_OFFSET, 29U), /*!< DAC clock reset */
/* APB2 peripherals */
RCU_AFRST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 0U), /*!< alternate function clock reset */
RCU_GPIOARST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 2U), /*!< GPIOA clock reset */
RCU_GPIOBRST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 3U), /*!< GPIOB clock reset */
RCU_GPIOCRST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 4U), /*!< GPIOC clock reset */
RCU_GPIODRST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 5U), /*!< GPIOD clock reset */
RCU_GPIOERST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 6U), /*!< GPIOE clock reset */
RCU_ADC0RST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 9U), /*!< ADC0 clock reset */
RCU_ADC1RST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 10U), /*!< ADC1 clock reset */
RCU_TIMER0RST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 11U), /*!< TIMER0 clock reset */
RCU_SPI0RST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 12U), /*!< SPI0 clock reset */
RCU_USART0RST = RCU_REGIDX_BIT(APB2RST_REG_OFFSET, 14U), /*!< USART0 clock reset */
} rcu_periph_reset_enum;
/* clock stabilization and peripheral reset flags */
typedef enum {
/* clock stabilization flags */
RCU_FLAG_IRC8MSTB = RCU_REGIDX_BIT(CTL_REG_OFFSET, 1U), /*!< IRC8M stabilization flags */
RCU_FLAG_HXTALSTB = RCU_REGIDX_BIT(CTL_REG_OFFSET, 17U), /*!< HXTAL stabilization flags */
RCU_FLAG_PLLSTB = RCU_REGIDX_BIT(CTL_REG_OFFSET, 25U), /*!< PLL stabilization flags */
RCU_FLAG_PLL1STB = RCU_REGIDX_BIT(CTL_REG_OFFSET, 27U), /*!< PLL1 stabilization flags */
RCU_FLAG_PLL2STB = RCU_REGIDX_BIT(CTL_REG_OFFSET, 29U), /*!< PLL2 stabilization flags */
RCU_FLAG_LXTALSTB = RCU_REGIDX_BIT(BDCTL_REG_OFFSET, 1U), /*!< LXTAL stabilization flags */
RCU_FLAG_IRC40KSTB = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 1U), /*!< IRC40K stabilization flags */
/* reset source flags */
RCU_FLAG_EPRST = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 26U), /*!< external PIN reset flags */
RCU_FLAG_PORRST = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 27U), /*!< power reset flags */
RCU_FLAG_SWRST = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 28U), /*!< software reset flags */
RCU_FLAG_FWDGTRST = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 29U), /*!< FWDGT reset flags */
RCU_FLAG_WWDGTRST = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 30U), /*!< WWDGT reset flags */
RCU_FLAG_LPRST = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 31U), /*!< low-power reset flags */
} rcu_flag_enum;
/* clock stabilization and ckm interrupt flags */
typedef enum {
RCU_INT_FLAG_IRC40KSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 0U), /*!< IRC40K stabilization interrupt flag */
RCU_INT_FLAG_LXTALSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 1U), /*!< LXTAL stabilization interrupt flag */
RCU_INT_FLAG_IRC8MSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 2U), /*!< IRC8M stabilization interrupt flag */
RCU_INT_FLAG_HXTALSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 3U), /*!< HXTAL stabilization interrupt flag */
RCU_INT_FLAG_PLLSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 4U), /*!< PLL stabilization interrupt flag */
RCU_INT_FLAG_PLL1STB = RCU_REGIDX_BIT(INT_REG_OFFSET, 5U), /*!< PLL1 stabilization interrupt flag */
RCU_INT_FLAG_PLL2STB = RCU_REGIDX_BIT(INT_REG_OFFSET, 6U), /*!< PLL2 stabilization interrupt flag */
RCU_INT_FLAG_CKM = RCU_REGIDX_BIT(INT_REG_OFFSET, 7U), /*!< HXTAL clock stuck interrupt flag */
} rcu_int_flag_enum;
/* clock stabilization and stuck interrupt flags clear */
typedef enum {
RCU_INT_FLAG_IRC40KSTB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 16U), /*!< IRC40K stabilization interrupt flags clear */
RCU_INT_FLAG_LXTALSTB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 17U), /*!< LXTAL stabilization interrupt flags clear */
RCU_INT_FLAG_IRC8MSTB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 18U), /*!< IRC8M stabilization interrupt flags clear */
RCU_INT_FLAG_HXTALSTB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 19U), /*!< HXTAL stabilization interrupt flags clear */
RCU_INT_FLAG_PLLSTB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 20U), /*!< PLL stabilization interrupt flags clear */
RCU_INT_FLAG_PLL1STB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 21U), /*!< PLL1 stabilization interrupt flags clear */
RCU_INT_FLAG_PLL2STB_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 22U), /*!< PLL2 stabilization interrupt flags clear */
RCU_INT_FLAG_CKM_CLR = RCU_REGIDX_BIT(INT_REG_OFFSET, 23U), /*!< CKM interrupt flags clear */
} rcu_int_flag_clear_enum;
/* clock stabilization interrupt enable or disable */
typedef enum {
RCU_INT_IRC40KSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 8U), /*!< IRC40K stabilization interrupt */
RCU_INT_LXTALSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 9U), /*!< LXTAL stabilization interrupt */
RCU_INT_IRC8MSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 10U), /*!< IRC8M stabilization interrupt */
RCU_INT_HXTALSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 11U), /*!< HXTAL stabilization interrupt */
RCU_INT_PLLSTB = RCU_REGIDX_BIT(INT_REG_OFFSET, 12U), /*!< PLL stabilization interrupt */
RCU_INT_PLL1STB = RCU_REGIDX_BIT(INT_REG_OFFSET, 13U), /*!< PLL1 stabilization interrupt */
RCU_INT_PLL2STB = RCU_REGIDX_BIT(INT_REG_OFFSET, 14U), /*!< PLL2 stabilization interrupt */
} rcu_int_enum;
/* oscillator types */
typedef enum {
RCU_HXTAL = RCU_REGIDX_BIT(CTL_REG_OFFSET, 16U), /*!< HXTAL */
RCU_LXTAL = RCU_REGIDX_BIT(BDCTL_REG_OFFSET, 0U), /*!< LXTAL */
RCU_IRC8M = RCU_REGIDX_BIT(CTL_REG_OFFSET, 0U), /*!< IRC8M */
RCU_IRC40K = RCU_REGIDX_BIT(RSTSCK_REG_OFFSET, 0U), /*!< IRC40K */
RCU_PLL_CK = RCU_REGIDX_BIT(CTL_REG_OFFSET, 24U), /*!< PLL */
RCU_PLL1_CK = RCU_REGIDX_BIT(CTL_REG_OFFSET, 26U), /*!< PLL1 */
RCU_PLL2_CK = RCU_REGIDX_BIT(CTL_REG_OFFSET, 28U), /*!< PLL2 */
} rcu_osci_type_enum;
/* rcu clock frequency */
typedef enum {
CK_SYS = 0, /*!< system clock */
CK_AHB, /*!< AHB clock */
CK_APB1, /*!< APB1 clock */
CK_APB2, /*!< APB2 clock */
} rcu_clock_freq_enum;
/* RCU_CFG0 register bit define */
/* system clock source select */
#define CFG0_SCS(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define RCU_CKSYSSRC_IRC8M CFG0_SCS(0) /*!< system clock source select IRC8M */
#define RCU_CKSYSSRC_HXTAL CFG0_SCS(1) /*!< system clock source select HXTAL */
#define RCU_CKSYSSRC_PLL CFG0_SCS(2) /*!< system clock source select PLL */
/* system clock source select status */
#define CFG0_SCSS(regval) (BITS(2,3) & ((uint32_t)(regval) << 2))
#define RCU_SCSS_IRC8M CFG0_SCSS(0) /*!< system clock source select IRC8M */
#define RCU_SCSS_HXTAL CFG0_SCSS(1) /*!< system clock source select HXTAL */
#define RCU_SCSS_PLL CFG0_SCSS(2) /*!< system clock source select PLLP */
/* AHB prescaler selection */
#define CFG0_AHBPSC(regval) (BITS(4,7) & ((uint32_t)(regval) << 4))
#define RCU_AHB_CKSYS_DIV1 CFG0_AHBPSC(0) /*!< AHB prescaler select CK_SYS */
#define RCU_AHB_CKSYS_DIV2 CFG0_AHBPSC(8) /*!< AHB prescaler select CK_SYS/2 */
#define RCU_AHB_CKSYS_DIV4 CFG0_AHBPSC(9) /*!< AHB prescaler select CK_SYS/4 */
#define RCU_AHB_CKSYS_DIV8 CFG0_AHBPSC(10) /*!< AHB prescaler select CK_SYS/8 */
#define RCU_AHB_CKSYS_DIV16 CFG0_AHBPSC(11) /*!< AHB prescaler select CK_SYS/16 */
#define RCU_AHB_CKSYS_DIV64 CFG0_AHBPSC(12) /*!< AHB prescaler select CK_SYS/64 */
#define RCU_AHB_CKSYS_DIV128 CFG0_AHBPSC(13) /*!< AHB prescaler select CK_SYS/128 */
#define RCU_AHB_CKSYS_DIV256 CFG0_AHBPSC(14) /*!< AHB prescaler select CK_SYS/256 */
#define RCU_AHB_CKSYS_DIV512 CFG0_AHBPSC(15) /*!< AHB prescaler select CK_SYS/512 */
/* APB1 prescaler selection */
#define CFG0_APB1PSC(regval) (BITS(8,10) & ((uint32_t)(regval) << 8))
#define RCU_APB1_CKAHB_DIV1 CFG0_APB1PSC(0) /*!< APB1 prescaler select CK_AHB */
#define RCU_APB1_CKAHB_DIV2 CFG0_APB1PSC(4) /*!< APB1 prescaler select CK_AHB/2 */
#define RCU_APB1_CKAHB_DIV4 CFG0_APB1PSC(5) /*!< APB1 prescaler select CK_AHB/4 */
#define RCU_APB1_CKAHB_DIV8 CFG0_APB1PSC(6) /*!< APB1 prescaler select CK_AHB/8 */
#define RCU_APB1_CKAHB_DIV16 CFG0_APB1PSC(7) /*!< APB1 prescaler select CK_AHB/16 */
/* APB2 prescaler selection */
#define CFG0_APB2PSC(regval) (BITS(11,13) & ((uint32_t)(regval) << 11))
#define RCU_APB2_CKAHB_DIV1 CFG0_APB2PSC(0) /*!< APB2 prescaler select CK_AHB */
#define RCU_APB2_CKAHB_DIV2 CFG0_APB2PSC(4) /*!< APB2 prescaler select CK_AHB/2 */
#define RCU_APB2_CKAHB_DIV4 CFG0_APB2PSC(5) /*!< APB2 prescaler select CK_AHB/4 */
#define RCU_APB2_CKAHB_DIV8 CFG0_APB2PSC(6) /*!< APB2 prescaler select CK_AHB/8 */
#define RCU_APB2_CKAHB_DIV16 CFG0_APB2PSC(7) /*!< APB2 prescaler select CK_AHB/16 */
/* ADC prescaler select */
#define RCU_CKADC_CKAPB2_DIV2 ((uint32_t)0x00000000U) /*!< ADC prescaler select CK_APB2/2 */
#define RCU_CKADC_CKAPB2_DIV4 ((uint32_t)0x00000001U) /*!< ADC prescaler select CK_APB2/4 */
#define RCU_CKADC_CKAPB2_DIV6 ((uint32_t)0x00000002U) /*!< ADC prescaler select CK_APB2/6 */
#define RCU_CKADC_CKAPB2_DIV8 ((uint32_t)0x00000003U) /*!< ADC prescaler select CK_APB2/8 */
#define RCU_CKADC_CKAPB2_DIV12 ((uint32_t)0x00000005U) /*!< ADC prescaler select CK_APB2/12 */
#define RCU_CKADC_CKAPB2_DIV16 ((uint32_t)0x00000007U) /*!< ADC prescaler select CK_APB2/16 */
/* PLL clock source selection */
#define RCU_PLLSRC_IRC8M_DIV2 ((uint32_t)0x00000000U) /*!< IRC8M/2 clock selected as source clock of PLL */
#define RCU_PLLSRC_HXTAL RCU_CFG0_PLLSEL /*!< HXTAL clock selected as source clock of PLL */
/* PLL clock multiplication factor */
#define PLLMF_4 RCU_CFG0_PLLMF_4 /* bit 4 of PLLMF */
#define CFG0_PLLMF(regval) (BITS(18,21) & ((uint32_t)(regval) << 18))
#define RCU_PLL_MUL2 CFG0_PLLMF(0) /*!< PLL source clock multiply by 2 */
#define RCU_PLL_MUL3 CFG0_PLLMF(1) /*!< PLL source clock multiply by 3 */
#define RCU_PLL_MUL4 CFG0_PLLMF(2) /*!< PLL source clock multiply by 4 */
#define RCU_PLL_MUL5 CFG0_PLLMF(3) /*!< PLL source clock multiply by 5 */
#define RCU_PLL_MUL6 CFG0_PLLMF(4) /*!< PLL source clock multiply by 6 */
#define RCU_PLL_MUL7 CFG0_PLLMF(5) /*!< PLL source clock multiply by 7 */
#define RCU_PLL_MUL8 CFG0_PLLMF(6) /*!< PLL source clock multiply by 8 */
#define RCU_PLL_MUL9 CFG0_PLLMF(7) /*!< PLL source clock multiply by 9 */
#define RCU_PLL_MUL10 CFG0_PLLMF(8) /*!< PLL source clock multiply by 10 */
#define RCU_PLL_MUL11 CFG0_PLLMF(9) /*!< PLL source clock multiply by 11 */
#define RCU_PLL_MUL12 CFG0_PLLMF(10) /*!< PLL source clock multiply by 12 */
#define RCU_PLL_MUL13 CFG0_PLLMF(11) /*!< PLL source clock multiply by 13 */
#define RCU_PLL_MUL14 CFG0_PLLMF(12) /*!< PLL source clock multiply by 14 */
#define RCU_PLL_MUL6_5 CFG0_PLLMF(13) /*!< PLL source clock multiply by 6.5 */
#define RCU_PLL_MUL16 CFG0_PLLMF(14) /*!< PLL source clock multiply by 16 */
#define RCU_PLL_MUL17 (PLLMF_4 | CFG0_PLLMF(0)) /*!< PLL source clock multiply by 17 */
#define RCU_PLL_MUL18 (PLLMF_4 | CFG0_PLLMF(1)) /*!< PLL source clock multiply by 18 */
#define RCU_PLL_MUL19 (PLLMF_4 | CFG0_PLLMF(2)) /*!< PLL source clock multiply by 19 */
#define RCU_PLL_MUL20 (PLLMF_4 | CFG0_PLLMF(3)) /*!< PLL source clock multiply by 20 */
#define RCU_PLL_MUL21 (PLLMF_4 | CFG0_PLLMF(4)) /*!< PLL source clock multiply by 21 */
#define RCU_PLL_MUL22 (PLLMF_4 | CFG0_PLLMF(5)) /*!< PLL source clock multiply by 22 */
#define RCU_PLL_MUL23 (PLLMF_4 | CFG0_PLLMF(6)) /*!< PLL source clock multiply by 23 */
#define RCU_PLL_MUL24 (PLLMF_4 | CFG0_PLLMF(7)) /*!< PLL source clock multiply by 24 */
#define RCU_PLL_MUL25 (PLLMF_4 | CFG0_PLLMF(8)) /*!< PLL source clock multiply by 25 */
#define RCU_PLL_MUL26 (PLLMF_4 | CFG0_PLLMF(9)) /*!< PLL source clock multiply by 26 */
#define RCU_PLL_MUL27 (PLLMF_4 | CFG0_PLLMF(10)) /*!< PLL source clock multiply by 27 */
#define RCU_PLL_MUL28 (PLLMF_4 | CFG0_PLLMF(11)) /*!< PLL source clock multiply by 28 */
#define RCU_PLL_MUL29 (PLLMF_4 | CFG0_PLLMF(12)) /*!< PLL source clock multiply by 29 */
#define RCU_PLL_MUL30 (PLLMF_4 | CFG0_PLLMF(13)) /*!< PLL source clock multiply by 30 */
#define RCU_PLL_MUL31 (PLLMF_4 | CFG0_PLLMF(14)) /*!< PLL source clock multiply by 31 */
#define RCU_PLL_MUL32 (PLLMF_4 | CFG0_PLLMF(15)) /*!< PLL source clock multiply by 32 */
/* USBFS prescaler select */
#define CFG0_USBPSC(regval) (BITS(22,23) & ((uint32_t)(regval) << 22))
#define RCU_CKUSB_CKPLL_DIV1_5 CFG0_USBPSC(0) /*!< USBFS prescaler select CK_PLL/1.5 */
#define RCU_CKUSB_CKPLL_DIV1 CFG0_USBPSC(1) /*!< USBFS prescaler select CK_PLL/1 */
#define RCU_CKUSB_CKPLL_DIV2_5 CFG0_USBPSC(2) /*!< USBFS prescaler select CK_PLL/2.5 */
#define RCU_CKUSB_CKPLL_DIV2 CFG0_USBPSC(3) /*!< USBFS prescaler select CK_PLL/2 */
/* CKOUT0 clock source selection */
#define CFG0_CKOUT0SEL(regval) (BITS(24,27) & ((uint32_t)(regval) << 24))
#define RCU_CKOUT0SRC_NONE CFG0_CKOUT0SEL(0) /*!< no clock selected */
#define RCU_CKOUT0SRC_CKSYS CFG0_CKOUT0SEL(4) /*!< system clock selected */
#define RCU_CKOUT0SRC_IRC8M CFG0_CKOUT0SEL(5) /*!< internal 8M RC oscillator clock selected */
#define RCU_CKOUT0SRC_HXTAL CFG0_CKOUT0SEL(6) /*!< high speed crystal oscillator clock (HXTAL) selected */
#define RCU_CKOUT0SRC_CKPLL_DIV2 CFG0_CKOUT0SEL(7) /*!< CK_PLL/2 clock selected */
#define RCU_CKOUT0SRC_CKPLL1 CFG0_CKOUT0SEL(8) /*!< CK_PLL1 clock selected */
#define RCU_CKOUT0SRC_CKPLL2_DIV2 CFG0_CKOUT0SEL(9) /*!< CK_PLL2/2 clock selected */
#define RCU_CKOUT0SRC_EXT1 CFG0_CKOUT0SEL(10) /*!< EXT1 selected */
#define RCU_CKOUT0SRC_CKPLL2 CFG0_CKOUT0SEL(11) /*!< CK_PLL2 clock selected */
/* RTC clock entry selection */
#define BDCTL_RTCSRC(regval) (BITS(8,9) & ((uint32_t)(regval) << 8))
#define RCU_RTCSRC_NONE BDCTL_RTCSRC(0) /*!< no clock selected */
#define RCU_RTCSRC_LXTAL BDCTL_RTCSRC(1) /*!< RTC source clock select LXTAL */
#define RCU_RTCSRC_IRC40K BDCTL_RTCSRC(2) /*!< RTC source clock select IRC40K */
#define RCU_RTCSRC_HXTAL_DIV_128 BDCTL_RTCSRC(3) /*!< RTC source clock select HXTAL/128 */
/* PREDV0 division factor */
#define CFG1_PREDV0(regval) (BITS(0,3) & ((uint32_t)(regval) << 0))
#define RCU_PREDV0_DIV1 CFG1_PREDV0(0) /*!< PREDV0 input source clock not divided */
#define RCU_PREDV0_DIV2 CFG1_PREDV0(1) /*!< PREDV0 input source clock divided by 2 */
#define RCU_PREDV0_DIV3 CFG1_PREDV0(2) /*!< PREDV0 input source clock divided by 3 */
#define RCU_PREDV0_DIV4 CFG1_PREDV0(3) /*!< PREDV0 input source clock divided by 4 */
#define RCU_PREDV0_DIV5 CFG1_PREDV0(4) /*!< PREDV0 input source clock divided by 5 */
#define RCU_PREDV0_DIV6 CFG1_PREDV0(5) /*!< PREDV0 input source clock divided by 6 */
#define RCU_PREDV0_DIV7 CFG1_PREDV0(6) /*!< PREDV0 input source clock divided by 7 */
#define RCU_PREDV0_DIV8 CFG1_PREDV0(7) /*!< PREDV0 input source clock divided by 8 */
#define RCU_PREDV0_DIV9 CFG1_PREDV0(8) /*!< PREDV0 input source clock divided by 9 */
#define RCU_PREDV0_DIV10 CFG1_PREDV0(9) /*!< PREDV0 input source clock divided by 10 */
#define RCU_PREDV0_DIV11 CFG1_PREDV0(10) /*!< PREDV0 input source clock divided by 11 */
#define RCU_PREDV0_DIV12 CFG1_PREDV0(11) /*!< PREDV0 input source clock divided by 12 */
#define RCU_PREDV0_DIV13 CFG1_PREDV0(12) /*!< PREDV0 input source clock divided by 13 */
#define RCU_PREDV0_DIV14 CFG1_PREDV0(13) /*!< PREDV0 input source clock divided by 14 */
#define RCU_PREDV0_DIV15 CFG1_PREDV0(14) /*!< PREDV0 input source clock divided by 15 */
#define RCU_PREDV0_DIV16 CFG1_PREDV0(15) /*!< PREDV0 input source clock divided by 16 */
/* PREDV1 division factor */
#define CFG1_PREDV1(regval) (BITS(4,7) & ((uint32_t)(regval) << 4))
#define RCU_PREDV1_DIV1 CFG1_PREDV1(0) /*!< PREDV1 input source clock not divided */
#define RCU_PREDV1_DIV2 CFG1_PREDV1(1) /*!< PREDV1 input source clock divided by 2 */
#define RCU_PREDV1_DIV3 CFG1_PREDV1(2) /*!< PREDV1 input source clock divided by 3 */
#define RCU_PREDV1_DIV4 CFG1_PREDV1(3) /*!< PREDV1 input source clock divided by 4 */
#define RCU_PREDV1_DIV5 CFG1_PREDV1(4) /*!< PREDV1 input source clock divided by 5 */
#define RCU_PREDV1_DIV6 CFG1_PREDV1(5) /*!< PREDV1 input source clock divided by 6 */
#define RCU_PREDV1_DIV7 CFG1_PREDV1(6) /*!< PREDV1 input source clock divided by 7 */
#define RCU_PREDV1_DIV8 CFG1_PREDV1(7) /*!< PREDV1 input source clock divided by 8 */
#define RCU_PREDV1_DIV9 CFG1_PREDV1(8) /*!< PREDV1 input source clock divided by 9 */
#define RCU_PREDV1_DIV10 CFG1_PREDV1(9) /*!< PREDV1 input source clock divided by 10 */
#define RCU_PREDV1_DIV11 CFG1_PREDV1(10) /*!< PREDV1 input source clock divided by 11 */
#define RCU_PREDV1_DIV12 CFG1_PREDV1(11) /*!< PREDV1 input source clock divided by 12 */
#define RCU_PREDV1_DIV13 CFG1_PREDV1(12) /*!< PREDV1 input source clock divided by 13 */
#define RCU_PREDV1_DIV14 CFG1_PREDV1(13) /*!< PREDV1 input source clock divided by 14 */
#define RCU_PREDV1_DIV15 CFG1_PREDV1(14) /*!< PREDV1 input source clock divided by 15 */
#define RCU_PREDV1_DIV16 CFG1_PREDV1(15) /*!< PREDV1 input source clock divided by 16 */
/* PLL1 clock multiplication factor */
#define CFG1_PLL1MF(regval) (BITS(8,11) & ((uint32_t)(regval) << 8))
#define RCU_PLL1_MUL8 CFG1_PLL1MF(6) /*!< PLL1 source clock multiply by 8 */
#define RCU_PLL1_MUL9 CFG1_PLL1MF(7) /*!< PLL1 source clock multiply by 9 */
#define RCU_PLL1_MUL10 CFG1_PLL1MF(8) /*!< PLL1 source clock multiply by 10 */
#define RCU_PLL1_MUL11 CFG1_PLL1MF(9) /*!< PLL1 source clock multiply by 11 */
#define RCU_PLL1_MUL12 CFG1_PLL1MF(10) /*!< PLL1 source clock multiply by 12 */
#define RCU_PLL1_MUL13 CFG1_PLL1MF(11) /*!< PLL1 source clock multiply by 13 */
#define RCU_PLL1_MUL14 CFG1_PLL1MF(12) /*!< PLL1 source clock multiply by 14 */
#define RCU_PLL1_MUL15 CFG1_PLL1MF(13) /*!< PLL1 source clock multiply by 15 */
#define RCU_PLL1_MUL16 CFG1_PLL1MF(14) /*!< PLL1 source clock multiply by 16 */
#define RCU_PLL1_MUL20 CFG1_PLL1MF(15) /*!< PLL1 source clock multiply by 20 */
/* PLL2 clock multiplication factor */
#define CFG1_PLL2MF(regval) (BITS(12,15) & ((uint32_t)(regval) << 12))
#define RCU_PLL2_MUL8 CFG1_PLL2MF(6) /*!< PLL2 source clock multiply by 8 */
#define RCU_PLL2_MUL9 CFG1_PLL2MF(7) /*!< PLL2 source clock multiply by 9 */
#define RCU_PLL2_MUL10 CFG1_PLL2MF(8) /*!< PLL2 source clock multiply by 10 */
#define RCU_PLL2_MUL11 CFG1_PLL2MF(9) /*!< PLL2 source clock multiply by 11 */
#define RCU_PLL2_MUL12 CFG1_PLL2MF(10) /*!< PLL2 source clock multiply by 12 */
#define RCU_PLL2_MUL13 CFG1_PLL2MF(11) /*!< PLL2 source clock multiply by 13 */
#define RCU_PLL2_MUL14 CFG1_PLL2MF(12) /*!< PLL2 source clock multiply by 14 */
#define RCU_PLL2_MUL15 CFG1_PLL2MF(13) /*!< PLL2 source clock multiply by 15 */
#define RCU_PLL2_MUL16 CFG1_PLL2MF(14) /*!< PLL2 source clock multiply by 16 */
#define RCU_PLL2_MUL20 CFG1_PLL2MF(15) /*!< PLL2 source clock multiply by 20 */
/* PREDV0 input clock source selection */
#define RCU_PREDV0SRC_HXTAL ((uint32_t)0x00000000U) /*!< HXTAL selected as PREDV0 input source clock */
#define RCU_PREDV0SRC_CKPLL1 RCU_CFG1_PREDV0SEL /*!< CK_PLL1 selected as PREDV0 input source clock */
/* I2S1 clock source selection */
#define RCU_I2S1SRC_CKSYS ((uint32_t)0x00000000U) /*!< system clock selected as I2S1 source clock */
#define RCU_I2S1SRC_CKPLL2_MUL2 RCU_CFG1_I2S1SEL /*!< (CK_PLL2 x 2) selected as I2S1 source clock */
/* I2S2 clock source selection */
#define RCU_I2S2SRC_CKSYS ((uint32_t)0x00000000U) /*!< system clock selected as I2S2 source clock */
#define RCU_I2S2SRC_CKPLL2_MUL2 RCU_CFG1_I2S2SEL /*!< (CK_PLL2 x 2) selected as I2S2 source clock */
/* deep-sleep mode voltage */
#define DSV_DSLPVS(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define RCU_DEEPSLEEP_V_1_2 DSV_DSLPVS(0) /*!< core voltage is 1.2V in deep-sleep mode */
#define RCU_DEEPSLEEP_V_1_1 DSV_DSLPVS(1) /*!< core voltage is 1.1V in deep-sleep mode */
#define RCU_DEEPSLEEP_V_1_0 DSV_DSLPVS(2) /*!< core voltage is 1.0V in deep-sleep mode */
#define RCU_DEEPSLEEP_V_0_9 DSV_DSLPVS(3) /*!< core voltage is 0.9V in deep-sleep mode */
/* function declarations */
/* initialization, peripheral clock enable/disable functions */
/* deinitialize the RCU */
void rcu_deinit(void);
/* enable the peripherals clock */
void rcu_periph_clock_enable(rcu_periph_enum periph);
/* disable the peripherals clock */
void rcu_periph_clock_disable(rcu_periph_enum periph);
/* enable the peripherals clock when sleep mode */
void rcu_periph_clock_sleep_enable(rcu_periph_sleep_enum periph);
/* disable the peripherals clock when sleep mode */
void rcu_periph_clock_sleep_disable(rcu_periph_sleep_enum periph);
/* reset the peripherals */
void rcu_periph_reset_enable(rcu_periph_reset_enum periph_reset);
/* disable reset the peripheral */
void rcu_periph_reset_disable(rcu_periph_reset_enum periph_reset);
/* reset the BKP domain */
void rcu_bkp_reset_enable(void);
/* disable the BKP domain reset */
void rcu_bkp_reset_disable(void);
/* clock configuration functions */
/* configure the system clock source */
void rcu_system_clock_source_config(uint32_t ck_sys);
/* get the system clock source */
uint32_t rcu_system_clock_source_get(void);
/* configure the AHB prescaler selection */
void rcu_ahb_clock_config(uint32_t ck_ahb);
/* configure the APB1 prescaler selection */
void rcu_apb1_clock_config(uint32_t ck_apb1);
/* configure the APB2 prescaler selection */
void rcu_apb2_clock_config(uint32_t ck_apb2);
/* configure the CK_OUT0 clock source and divider */
void rcu_ckout0_config(uint32_t ckout0_src);
/* configure the PLL clock source selection and PLL multiply factor */
void rcu_pll_config(uint32_t pll_src, uint32_t pll_mul);
/* configure the PREDV0 division factor and clock source */
void rcu_predv0_config(uint32_t predv0_source, uint32_t predv0_div);
/* configure the PREDV1 division factor */
void rcu_predv1_config(uint32_t predv1_div);
/* configure the PLL1 clock */
void rcu_pll1_config(uint32_t pll_mul);
/* configure the PLL2 clock */
void rcu_pll2_config(uint32_t pll_mul);
/* peripheral clock configuration functions */
/* configure the ADC division factor */
void rcu_adc_clock_config(uint32_t adc_psc);
/* configure the USBD/USBFS prescaler factor */
void rcu_usb_clock_config(uint32_t usb_psc);
/* configure the RTC clock source selection */
void rcu_rtc_clock_config(uint32_t rtc_clock_source);
/* configure the I2S1 clock source selection */
void rcu_i2s1_clock_config(uint32_t i2s_clock_source);
/* configure the I2S2 clock source selection */
void rcu_i2s2_clock_config(uint32_t i2s_clock_source);
/* interrupt & flag functions */
/* get the clock stabilization and periphral reset flags */
FlagStatus rcu_flag_get(rcu_flag_enum flag);
/* clear the reset flag */
void rcu_all_reset_flag_clear(void);
/* get the clock stabilization interrupt and ckm flags */
FlagStatus rcu_interrupt_flag_get(rcu_int_flag_enum int_flag);
/* clear the interrupt flags */
void rcu_interrupt_flag_clear(rcu_int_flag_clear_enum int_flag_clear);
/* enable the stabilization interrupt */
void rcu_interrupt_enable(rcu_int_enum stab_int);
/* disable the stabilization interrupt */
void rcu_interrupt_disable(rcu_int_enum stab_int);
/* oscillator configuration functions */
/* wait for oscillator stabilization flags is SET or oscillator startup is timeout */
ErrStatus rcu_osci_stab_wait(rcu_osci_type_enum osci);
/* turn on the oscillator */
void rcu_osci_on(rcu_osci_type_enum osci);
/* turn off the oscillator */
void rcu_osci_off(rcu_osci_type_enum osci);
/* enable the oscillator bypass mode, HXTALEN or LXTALEN must be reset before it */
void rcu_osci_bypass_mode_enable(rcu_osci_type_enum osci);
/* disable the oscillator bypass mode, HXTALEN or LXTALEN must be reset before it */
void rcu_osci_bypass_mode_disable(rcu_osci_type_enum osci);
/* enable the HXTAL clock monitor */
void rcu_hxtal_clock_monitor_enable(void);
/* disable the HXTAL clock monitor */
void rcu_hxtal_clock_monitor_disable(void);
/* set the IRC8M adjust value */
void rcu_irc8m_adjust_value_set(uint32_t irc8m_adjval);
/* set the deep sleep mode voltage */
void rcu_deepsleep_voltage_set(uint32_t dsvol);
/* get the system clock, bus and peripheral clock frequency */
uint32_t rcu_clock_freq_get(rcu_clock_freq_enum clock);
#endif /* GD32VF103_RCU_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_rtc.h
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/*!
\file gd32vf103_rtc.h
\brief definitions for the RTC
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_RTC_H
#define GD32VF103_RTC_H
#include "gd32vf103.h"
/* RTC definitions */
#define RTC RTC_BASE
/* registers definitions */
#define RTC_INTEN REG32(RTC + 0x00U) /*!< interrupt enable register */
#define RTC_CTL REG32(RTC + 0x04U) /*!< control register */
#define RTC_PSCH REG32(RTC + 0x08U) /*!< prescaler high register */
#define RTC_PSCL REG32(RTC + 0x0CU) /*!< prescaler low register */
#define RTC_DIVH REG32(RTC + 0x10U) /*!< divider high register */
#define RTC_DIVL REG32(RTC + 0x14U) /*!< divider low register */
#define RTC_CNTH REG32(RTC + 0x18U) /*!< counter high register */
#define RTC_CNTL REG32(RTC + 0x1CU) /*!< counter low register */
#define RTC_ALRMH REG32(RTC + 0x20U) /*!< alarm high register */
#define RTC_ALRML REG32(RTC + 0x24U) /*!< alarm low register */
/* bits definitions */
/* RTC_INTEN */
#define RTC_INTEN_SCIE BIT(0) /*!< second interrupt enable */
#define RTC_INTEN_ALRMIE BIT(1) /*!< alarm interrupt enable */
#define RTC_INTEN_OVIE BIT(2) /*!< overflow interrupt enable */
/* RTC_CTL */
#define RTC_CTL_SCIF BIT(0) /*!< second interrupt flag */
#define RTC_CTL_ALRMIF BIT(1) /*!< alarm interrupt flag */
#define RTC_CTL_OVIF BIT(2) /*!< overflow interrupt flag */
#define RTC_CTL_RSYNF BIT(3) /*!< registers synchronized flag */
#define RTC_CTL_CMF BIT(4) /*!< configuration mode flag */
#define RTC_CTL_LWOFF BIT(5) /*!< last write operation finished flag */
/* RTC_PSCH */
#define RTC_PSCH_PSC BITS(0,3) /*!< prescaler high value */
/* RTC_PSCL */
#define RTC_PSCL_PSC BITS(0,15) /*!< prescaler low value */
/* RTC_DIVH */
#define RTC_DIVH_DIV BITS(0,3) /*!< divider high value */
/* RTC_DIVL */
#define RTC_DIVL_DIV BITS(0,15) /*!< divider low value */
/* RTC_CNTH */
#define RTC_CNTH_CNT BITS(0,15) /*!< counter high value */
/* RTC_CNTL */
#define RTC_CNTL_CNT BITS(0,15) /*!< counter low value */
/* RTC_ALRMH */
#define RTC_ALRMH_ALRM BITS(0,15) /*!< alarm high value */
/* RTC_ALRML */
#define RTC_ALRML_ALRM BITS(0,15) /*!< alarm low value */
/* constants definitions */
/* RTC interrupt enable or disable definitions */
#define RTC_INT_SECOND RTC_INTEN_SCIE /*!< second interrupt enable */
#define RTC_INT_ALARM RTC_INTEN_ALRMIE /*!< alarm interrupt enable */
#define RTC_INT_OVERFLOW RTC_INTEN_OVIE /*!< overflow interrupt enable */
/* RTC interrupt flag definitions */
#define RTC_INT_FLAG_SECOND RTC_CTL_SCIF /*!< second interrupt flag */
#define RTC_INT_FLAG_ALARM RTC_CTL_ALRMIF /*!< alarm interrupt flag */
#define RTC_INT_FLAG_OVERFLOW RTC_CTL_OVIF /*!< overflow interrupt flag */
/* RTC flag definitions */
#define RTC_FLAG_SECOND RTC_CTL_SCIF /*!< second interrupt flag */
#define RTC_FLAG_ALARM RTC_CTL_ALRMIF /*!< alarm interrupt flag */
#define RTC_FLAG_OVERFLOW RTC_CTL_OVIF /*!< overflow interrupt flag */
#define RTC_FLAG_RSYN RTC_CTL_RSYNF /*!< registers synchronized flag */
#define RTC_FLAG_LWOF RTC_CTL_LWOFF /*!< last write operation finished flag */
/* function declarations */
/* initialization functions */
/* enter RTC configuration mode */
void rtc_configuration_mode_enter(void);
/* exit RTC configuration mode */
void rtc_configuration_mode_exit(void);
/* set RTC counter value */
void rtc_counter_set(uint32_t cnt);
/* set RTC prescaler value */
void rtc_prescaler_set(uint32_t psc);
/* operation functions */
/* wait RTC last write operation finished flag set */
void rtc_lwoff_wait(void);
/* wait RTC registers synchronized flag set */
void rtc_register_sync_wait(void);
/* set RTC alarm value */
void rtc_alarm_config(uint32_t alarm);
/* get RTC counter value */
uint32_t rtc_counter_get(void);
/* get RTC divider value */
uint32_t rtc_divider_get(void);
/* flag & interrupt functions */
/* get RTC flag status */
FlagStatus rtc_flag_get(uint32_t flag);
/* clear RTC flag status */
void rtc_flag_clear(uint32_t flag);
/* get RTC interrupt flag status */
FlagStatus rtc_interrupt_flag_get(uint32_t flag);
/* clear RTC interrupt flag status */
void rtc_interrupt_flag_clear(uint32_t flag);
/* enable RTC interrupt */
void rtc_interrupt_enable(uint32_t interrupt);
/* disable RTC interrupt */
void rtc_interrupt_disable(uint32_t interrupt);
#endif /* GD32VF103_RTC_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_spi.h
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/*!
\file gd32vf103_spi.h
\brief definitions for the SPI
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_SPI_H
#define GD32VF103_SPI_H
#include "gd32vf103.h"
/* SPIx(x=0,1,2) definitions */
#define SPI0 (SPI_BASE + 0x0000F800U)
#define SPI1 SPI_BASE
#define SPI2 (SPI_BASE + 0x00000400U)
/* SPI registers definitions */
#define SPI_CTL0(spix) REG32((spix) + 0x00U) /*!< SPI control register 0 */
#define SPI_CTL1(spix) REG32((spix) + 0x04U) /*!< SPI control register 1*/
#define SPI_STAT(spix) REG32((spix) + 0x08U) /*!< SPI status register */
#define SPI_DATA(spix) REG32((spix) + 0x0CU) /*!< SPI data register */
#define SPI_CRCPOLY(spix) REG32((spix) + 0x10U) /*!< SPI CRC polynomial register */
#define SPI_RCRC(spix) REG32((spix) + 0x14U) /*!< SPI receive CRC register */
#define SPI_TCRC(spix) REG32((spix) + 0x18U) /*!< SPI transmit CRC register */
#define SPI_I2SCTL(spix) REG32((spix) + 0x1CU) /*!< SPI I2S control register */
#define SPI_I2SPSC(spix) REG32((spix) + 0x20U) /*!< SPI I2S clock prescaler register */
/* bits definitions */
/* SPI_CTL0 */
#define SPI_CTL0_CKPH BIT(0) /*!< clock phase selection*/
#define SPI_CTL0_CKPL BIT(1) /*!< clock polarity selection */
#define SPI_CTL0_MSTMOD BIT(2) /*!< master mode enable */
#define SPI_CTL0_PSC BITS(3,5) /*!< master clock prescaler selection */
#define SPI_CTL0_SPIEN BIT(6) /*!< SPI enable*/
#define SPI_CTL0_LF BIT(7) /*!< LSB first mode */
#define SPI_CTL0_SWNSS BIT(8) /*!< NSS pin selection in NSS software mode */
#define SPI_CTL0_SWNSSEN BIT(9) /*!< NSS software mode selection */
#define SPI_CTL0_RO BIT(10) /*!< receive only */
#define SPI_CTL0_FF16 BIT(11) /*!< data frame size */
#define SPI_CTL0_CRCNT BIT(12) /*!< CRC next transfer */
#define SPI_CTL0_CRCEN BIT(13) /*!< CRC calculation enable */
#define SPI_CTL0_BDOEN BIT(14) /*!< bidirectional transmit output enable*/
#define SPI_CTL0_BDEN BIT(15) /*!< bidirectional enable */
/* SPI_CTL1 */
#define SPI_CTL1_DMAREN BIT(0) /*!< receive buffer dma enable */
#define SPI_CTL1_DMATEN BIT(1) /*!< transmit buffer dma enable */
#define SPI_CTL1_NSSDRV BIT(2) /*!< drive NSS output */
#define SPI_CTL1_NSSP BIT(3) /*!< SPI NSS pulse mode enable */
#define SPI_CTL1_TMOD BIT(4) /*!< SPI TI mode enable */
#define SPI_CTL1_ERRIE BIT(5) /*!< errors interrupt enable */
#define SPI_CTL1_RBNEIE BIT(6) /*!< receive buffer not empty interrupt enable */
#define SPI_CTL1_TBEIE BIT(7) /*!< transmit buffer empty interrupt enable */
/* SPI_STAT */
#define SPI_STAT_RBNE BIT(0) /*!< receive buffer not empty */
#define SPI_STAT_TBE BIT(1) /*!< transmit buffer empty */
#define SPI_STAT_I2SCH BIT(2) /*!< I2S channel side */
#define SPI_STAT_TXURERR BIT(3) /*!< I2S transmission underrun error bit */
#define SPI_STAT_CRCERR BIT(4) /*!< SPI CRC error bit */
#define SPI_STAT_CONFERR BIT(5) /*!< SPI configuration error bit */
#define SPI_STAT_RXORERR BIT(6) /*!< SPI reception overrun error bit */
#define SPI_STAT_TRANS BIT(7) /*!< transmitting on-going bit */
#define SPI_STAT_FERR BIT(8) /*!< format error bit */
/* SPI_DATA */
#define SPI_DATA_DATA BITS(0,15) /*!< data transfer register */
/* SPI_CRCPOLY */
#define SPI_CRCPOLY_CRCPOLY BITS(0,15) /*!< CRC polynomial value */
/* SPI_RCRC */
#define SPI_RCRC_RCRC BITS(0,15) /*!< RX CRC value */
/* SPI_TCRC */
#define SPI_TCRC_TCRC BITS(0,15) /*!< TX CRC value */
/* SPI_I2SCTL */
#define SPI_I2SCTL_CHLEN BIT(0) /*!< channel length */
#define SPI_I2SCTL_DTLEN BITS(1,2) /*!< data length */
#define SPI_I2SCTL_CKPL BIT(3) /*!< idle state clock polarity */
#define SPI_I2SCTL_I2SSTD BITS(4,5) /*!< I2S standard selection */
#define SPI_I2SCTL_PCMSMOD BIT(7) /*!< PCM frame synchronization mode */
#define SPI_I2SCTL_I2SOPMOD BITS(8,9) /*!< I2S operation mode */
#define SPI_I2SCTL_I2SEN BIT(10) /*!< I2S enable */
#define SPI_I2SCTL_I2SSEL BIT(11) /*!< I2S mode selection */
/* SPI_I2SPSC */
#define SPI_I2SPSC_DIV BITS(0,7) /*!< dividing factor for the prescaler */
#define SPI_I2SPSC_OF BIT(8) /*!< odd factor for the prescaler */
#define SPI_I2SPSC_MCKOEN BIT(9) /*!< I2S MCK output enable */
/* constants definitions */
/* SPI and I2S parameter struct definitions */
typedef struct
{
uint32_t device_mode; /*!< SPI master or slave */
uint32_t trans_mode; /*!< SPI transtype */
uint32_t frame_size; /*!< SPI frame size */
uint32_t nss; /*!< SPI NSS control by handware or software */
uint32_t endian; /*!< SPI big endian or little endian */
uint32_t clock_polarity_phase; /*!< SPI clock phase and polarity */
uint32_t prescale; /*!< SPI prescale factor */
}spi_parameter_struct;
/* SPI mode definitions */
#define SPI_MASTER (SPI_CTL0_MSTMOD | SPI_CTL0_SWNSS) /*!< SPI as master */
#define SPI_SLAVE ((uint32_t)0x00000000U) /*!< SPI as slave */
/* SPI bidirectional transfer direction */
#define SPI_BIDIRECTIONAL_TRANSMIT SPI_CTL0_BDOEN /*!< SPI work in transmit-only mode */
#define SPI_BIDIRECTIONAL_RECEIVE (~SPI_CTL0_BDOEN) /*!< SPI work in receive-only mode */
/* SPI transmit type */
#define SPI_TRANSMODE_FULLDUPLEX ((uint32_t)0x00000000U) /*!< SPI receive and send data at fullduplex communication */
#define SPI_TRANSMODE_RECEIVEONLY SPI_CTL0_RO /*!< SPI only receive data */
#define SPI_TRANSMODE_BDRECEIVE SPI_CTL0_BDEN /*!< bidirectional receive data */
#define SPI_TRANSMODE_BDTRANSMIT (SPI_CTL0_BDEN | SPI_CTL0_BDOEN) /*!< bidirectional transmit data*/
/* SPI frame size */
#define SPI_FRAMESIZE_16BIT SPI_CTL0_FF16 /*!< SPI frame size is 16 bits */
#define SPI_FRAMESIZE_8BIT ((uint32_t)0x00000000U) /*!< SPI frame size is 8 bits */
/* SPI NSS control mode */
#define SPI_NSS_SOFT SPI_CTL0_SWNSSEN /*!< SPI NSS control by software */
#define SPI_NSS_HARD ((uint32_t)0x00000000U) /*!< SPI NSS control by hardware */
/* SPI transmit way */
#define SPI_ENDIAN_MSB ((uint32_t)0x00000000U) /*!< SPI transmit way is big endian: transmit MSB first */
#define SPI_ENDIAN_LSB SPI_CTL0_LF /*!< SPI transmit way is little endian: transmit LSB first */
/* SPI clock phase and polarity */
#define SPI_CK_PL_LOW_PH_1EDGE ((uint32_t)0x00000000U) /*!< SPI clock polarity is low level and phase is first edge */
#define SPI_CK_PL_HIGH_PH_1EDGE SPI_CTL0_CKPL /*!< SPI clock polarity is high level and phase is first edge */
#define SPI_CK_PL_LOW_PH_2EDGE SPI_CTL0_CKPH /*!< SPI clock polarity is low level and phase is second edge */
#define SPI_CK_PL_HIGH_PH_2EDGE (SPI_CTL0_CKPL | SPI_CTL0_CKPH) /*!< SPI clock polarity is high level and phase is second edge */
/* SPI clock prescale factor */
#define CTL0_PSC(regval) (BITS(3,5) & ((uint32_t)(regval) << 3))
#define SPI_PSC_2 CTL0_PSC(0) /*!< SPI clock prescale factor is 2 */
#define SPI_PSC_4 CTL0_PSC(1) /*!< SPI clock prescale factor is 4 */
#define SPI_PSC_8 CTL0_PSC(2) /*!< SPI clock prescale factor is 8 */
#define SPI_PSC_16 CTL0_PSC(3) /*!< SPI clock prescale factor is 16 */
#define SPI_PSC_32 CTL0_PSC(4) /*!< SPI clock prescale factor is 32 */
#define SPI_PSC_64 CTL0_PSC(5) /*!< SPI clock prescale factor is 64 */
#define SPI_PSC_128 CTL0_PSC(6) /*!< SPI clock prescale factor is 128 */
#define SPI_PSC_256 CTL0_PSC(7) /*!< SPI clock prescale factor is 256 */
/* I2S audio sample rate */
#define I2S_AUDIOSAMPLE_8K ((uint32_t)8000U) /*!< I2S audio sample rate is 8KHz */
#define I2S_AUDIOSAMPLE_11K ((uint32_t)11025U) /*!< I2S audio sample rate is 11KHz */
#define I2S_AUDIOSAMPLE_16K ((uint32_t)16000U) /*!< I2S audio sample rate is 16KHz */
#define I2S_AUDIOSAMPLE_22K ((uint32_t)22050U) /*!< I2S audio sample rate is 22KHz */
#define I2S_AUDIOSAMPLE_32K ((uint32_t)32000U) /*!< I2S audio sample rate is 32KHz */
#define I2S_AUDIOSAMPLE_44K ((uint32_t)44100U) /*!< I2S audio sample rate is 44KHz */
#define I2S_AUDIOSAMPLE_48K ((uint32_t)48000U) /*!< I2S audio sample rate is 48KHz */
#define I2S_AUDIOSAMPLE_96K ((uint32_t)96000U) /*!< I2S audio sample rate is 96KHz */
#define I2S_AUDIOSAMPLE_192K ((uint32_t)192000U) /*!< I2S audio sample rate is 192KHz */
/* I2S frame format */
#define I2SCTL_DTLEN(regval) (BITS(1,2) & ((uint32_t)(regval) << 1))
#define I2S_FRAMEFORMAT_DT16B_CH16B I2SCTL_DTLEN(0) /*!< I2S data length is 16 bit and channel length is 16 bit */
#define I2S_FRAMEFORMAT_DT16B_CH32B (I2SCTL_DTLEN(0) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 16 bit and channel length is 32 bit */
#define I2S_FRAMEFORMAT_DT24B_CH32B (I2SCTL_DTLEN(1) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 24 bit and channel length is 32 bit */
#define I2S_FRAMEFORMAT_DT32B_CH32B (I2SCTL_DTLEN(2) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 32 bit and channel length is 32 bit */
/* I2S master clock output */
#define I2S_MCKOUT_DISABLE ((uint32_t)0x00000000U) /*!< I2S master clock output disable */
#define I2S_MCKOUT_ENABLE SPI_I2SPSC_MCKOEN /*!< I2S master clock output enable */
/* I2S operation mode */
#define I2SCTL_I2SOPMOD(regval) (BITS(8,9) & ((uint32_t)(regval) << 8))
#define I2S_MODE_SLAVETX I2SCTL_I2SOPMOD(0) /*!< I2S slave transmit mode */
#define I2S_MODE_SLAVERX I2SCTL_I2SOPMOD(1) /*!< I2S slave receive mode */
#define I2S_MODE_MASTERTX I2SCTL_I2SOPMOD(2) /*!< I2S master transmit mode */
#define I2S_MODE_MASTERRX I2SCTL_I2SOPMOD(3) /*!< I2S master receive mode */
/* I2S standard */
#define I2SCTL_I2SSTD(regval) (BITS(4,5) & ((uint32_t)(regval) << 4))
#define I2S_STD_PHILLIPS I2SCTL_I2SSTD(0) /*!< I2S phillips standard */
#define I2S_STD_MSB I2SCTL_I2SSTD(1) /*!< I2S MSB standard */
#define I2S_STD_LSB I2SCTL_I2SSTD(2) /*!< I2S LSB standard */
#define I2S_STD_PCMSHORT I2SCTL_I2SSTD(3) /*!< I2S PCM short standard */
#define I2S_STD_PCMLONG (I2SCTL_I2SSTD(3) | SPI_I2SCTL_PCMSMOD) /*!< I2S PCM long standard */
/* I2S clock polarity */
#define I2S_CKPL_LOW ((uint32_t)0x00000000U) /*!< I2S clock polarity low level */
#define I2S_CKPL_HIGH SPI_I2SCTL_CKPL /*!< I2S clock polarity high level */
/* SPI DMA constants definitions */
#define SPI_DMA_TRANSMIT ((uint8_t)0x00U) /*!< SPI transmit data use DMA */
#define SPI_DMA_RECEIVE ((uint8_t)0x01U) /*!< SPI receive data use DMA */
/* SPI CRC constants definitions */
#define SPI_CRC_TX ((uint8_t)0x00U) /*!< SPI transmit CRC value */
#define SPI_CRC_RX ((uint8_t)0x01U) /*!< SPI receive CRC value */
/* SPI/I2S interrupt enable/disable constants definitions */
#define SPI_I2S_INT_TBE ((uint8_t)0x00U) /*!< transmit buffer empty interrupt */
#define SPI_I2S_INT_RBNE ((uint8_t)0x01U) /*!< receive buffer not empty interrupt */
#define SPI_I2S_INT_ERR ((uint8_t)0x02U) /*!< error interrupt */
/* SPI/I2S interrupt flag constants definitions */
#define SPI_I2S_INT_FLAG_TBE ((uint8_t)0x00U) /*!< transmit buffer empty interrupt flag */
#define SPI_I2S_INT_FLAG_RBNE ((uint8_t)0x01U) /*!< receive buffer not empty interrupt flag */
#define SPI_I2S_INT_FLAG_RXORERR ((uint8_t)0x02U) /*!< overrun interrupt flag */
#define SPI_INT_FLAG_CONFERR ((uint8_t)0x03U) /*!< config error interrupt flag */
#define SPI_INT_FLAG_CRCERR ((uint8_t)0x04U) /*!< CRC error interrupt flag */
#define I2S_INT_FLAG_TXURERR ((uint8_t)0x05U) /*!< underrun error interrupt flag */
#define SPI_I2S_INT_FLAG_FERR ((uint8_t)0x06U) /*!< format error interrupt flag */
/* SPI/I2S flag definitions */
#define SPI_FLAG_RBNE SPI_STAT_RBNE /*!< receive buffer not empty flag */
#define SPI_FLAG_TBE SPI_STAT_TBE /*!< transmit buffer empty flag */
#define SPI_FLAG_CRCERR SPI_STAT_CRCERR /*!< CRC error flag */
#define SPI_FLAG_CONFERR SPI_STAT_CONFERR /*!< mode config error flag */
#define SPI_FLAG_RXORERR SPI_STAT_RXORERR /*!< receive overrun error flag */
#define SPI_FLAG_TRANS SPI_STAT_TRANS /*!< transmit on-going flag */
#define SPI_FLAG_FERR SPI_STAT_FERR /*!< format error interrupt flag */
#define I2S_FLAG_RBNE SPI_STAT_RBNE /*!< receive buffer not empty flag */
#define I2S_FLAG_TBE SPI_STAT_TBE /*!< transmit buffer empty flag */
#define I2S_FLAG_CH SPI_STAT_I2SCH /*!< channel side flag */
#define I2S_FLAG_TXURERR SPI_STAT_TXURERR /*!< underrun error flag */
#define I2S_FLAG_RXORERR SPI_STAT_RXORERR /*!< overrun error flag */
#define I2S_FLAG_TRANS SPI_STAT_TRANS /*!< transmit on-going flag */
#define I2S_FLAG_FERR SPI_STAT_FERR /*!< format error interrupt flag */
/* function declarations */
/* SPI/I2S deinitialization and initialization functions */
/* reset SPI and I2S */
void spi_i2s_deinit(uint32_t spi_periph);
/* initialize the parameters of SPI struct with the default values */
void spi_struct_para_init(spi_parameter_struct* spi_struct);
/* initialize SPI parameter */
void spi_init(uint32_t spi_periph, spi_parameter_struct* spi_struct);
/* enable SPI */
void spi_enable(uint32_t spi_periph);
/* disable SPI */
void spi_disable(uint32_t spi_periph);
/* initialize I2S parameter */
void i2s_init(uint32_t spi_periph, uint32_t mode, uint32_t standard, uint32_t ckpl);
/* configure I2S prescaler */
void i2s_psc_config(uint32_t spi_periph, uint32_t audiosample, uint32_t frameformat, uint32_t mckout);
/* enable I2S */
void i2s_enable(uint32_t spi_periph);
/* disable I2S */
void i2s_disable(uint32_t spi_periph);
/* NSS functions */
/* enable SPI NSS output */
void spi_nss_output_enable(uint32_t spi_periph);
/* disable SPI NSS output */
void spi_nss_output_disable(uint32_t spi_periph);
/* SPI NSS pin high level in software mode */
void spi_nss_internal_high(uint32_t spi_periph);
/* SPI NSS pin low level in software mode */
void spi_nss_internal_low(uint32_t spi_periph);
/* DMA communication */
/* enable SPI DMA */
void spi_dma_enable(uint32_t spi_periph, uint8_t dma);
/* disable SPI DMA */
void spi_dma_disable(uint32_t spi_periph, uint8_t dma);
/* normal mode communication */
/* configure SPI/I2S data frame format */
void spi_i2s_data_frame_format_config(uint32_t spi_periph, uint16_t frame_format);
/* SPI transmit data */
void spi_i2s_data_transmit(uint32_t spi_periph, uint16_t data);
/* SPI receive data */
uint16_t spi_i2s_data_receive(uint32_t spi_periph);
/* configure SPI bidirectional transfer direction */
void spi_bidirectional_transfer_config(uint32_t spi_periph, uint32_t transfer_direction);
/* SPI CRC functions */
/* set SPI CRC polynomial */
void spi_crc_polynomial_set(uint32_t spi_periph, uint16_t crc_poly);
/* get SPI CRC polynomial */
uint16_t spi_crc_polynomial_get(uint32_t spi_periph);
/* turn on SPI CRC function */
void spi_crc_on(uint32_t spi_periph);
/* turn off SPI CRC function */
void spi_crc_off(uint32_t spi_periph);
/* SPI next data is CRC value */
void spi_crc_next(uint32_t spi_periph);
/* get SPI CRC send value or receive value */
uint16_t spi_crc_get(uint32_t spi_periph, uint8_t crc);
/* SPI TI mode functions */
/* enable SPI TI mode */
void spi_ti_mode_enable(uint32_t spi_periph);
/* disable SPI TI mode */
void spi_ti_mode_disable(uint32_t spi_periph);
/* SPI NSS pulse mode functions */
/* enable SPI NSS pulse mode */
void spi_nssp_mode_enable(uint32_t spi_periph);
/* disable SPI NSS pulse mode */
void spi_nssp_mode_disable(uint32_t spi_periph);
/* flag and interrupt functions */
/* enable SPI and I2S interrupt */
void spi_i2s_interrupt_enable(uint32_t spi_periph, uint8_t interrupt);
/* disable SPI and I2S interrupt */
void spi_i2s_interrupt_disable(uint32_t spi_periph, uint8_t interrupt);
/* get SPI and I2S interrupt status */
FlagStatus spi_i2s_interrupt_flag_get(uint32_t spi_periph, uint8_t interrupt);
/* get SPI and I2S flag status */
FlagStatus spi_i2s_flag_get(uint32_t spi_periph, uint32_t flag);
/* clear SPI CRC error flag status */
void spi_crc_error_clear(uint32_t spi_periph);
#endif /* GD32VF103_SPI_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_timer.h
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/*!
\file gd32vf103_timer.h
\brief definitions for the TIMER
\version 2019-06-05, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_TIMER_H
#define GD32VF103_TIMER_H
#include "gd32vf103.h"
/* TIMERx(x=0..13) definitions */
#define TIMER0 (TIMER_BASE + 0x00012C00U)
#define TIMER1 (TIMER_BASE + 0x00000000U)
#define TIMER2 (TIMER_BASE + 0x00000400U)
#define TIMER3 (TIMER_BASE + 0x00000800U)
#define TIMER4 (TIMER_BASE + 0x00000C00U)
#define TIMER5 (TIMER_BASE + 0x00001000U)
#define TIMER6 (TIMER_BASE + 0x00001400U)
/* registers definitions */
#define TIMER_CTL0(timerx) REG32((timerx) + 0x00U) /*!< TIMER control register 0 */
#define TIMER_CTL1(timerx) REG32((timerx) + 0x04U) /*!< TIMER control register 1 */
#define TIMER_SMCFG(timerx) REG32((timerx) + 0x08U) /*!< TIMER slave mode configuration register */
#define TIMER_DMAINTEN(timerx) REG32((timerx) + 0x0CU) /*!< TIMER DMA and interrupt enable register */
#define TIMER_INTF(timerx) REG32((timerx) + 0x10U) /*!< TIMER interrupt flag register */
#define TIMER_SWEVG(timerx) REG32((timerx) + 0x14U) /*!< TIMER software event generation register */
#define TIMER_CHCTL0(timerx) REG32((timerx) + 0x18U) /*!< TIMER channel control register 0 */
#define TIMER_CHCTL1(timerx) REG32((timerx) + 0x1CU) /*!< TIMER channel control register 1 */
#define TIMER_CHCTL2(timerx) REG32((timerx) + 0x20U) /*!< TIMER channel control register 2 */
#define TIMER_CNT(timerx) REG32((timerx) + 0x24U) /*!< TIMER counter register */
#define TIMER_PSC(timerx) REG32((timerx) + 0x28U) /*!< TIMER prescaler register */
#define TIMER_CAR(timerx) REG32((timerx) + 0x2CU) /*!< TIMER counter auto reload register */
#define TIMER_CREP(timerx) REG32((timerx) + 0x30U) /*!< TIMER counter repetition register */
#define TIMER_CH0CV(timerx) REG32((timerx) + 0x34U) /*!< TIMER channel 0 capture/compare value register */
#define TIMER_CH1CV(timerx) REG32((timerx) + 0x38U) /*!< TIMER channel 1 capture/compare value register */
#define TIMER_CH2CV(timerx) REG32((timerx) + 0x3CU) /*!< TIMER channel 2 capture/compare value register */
#define TIMER_CH3CV(timerx) REG32((timerx) + 0x40U) /*!< TIMER channel 3 capture/compare value register */
#define TIMER_CCHP(timerx) REG32((timerx) + 0x44U) /*!< TIMER channel complementary protection register */
#define TIMER_DMACFG(timerx) REG32((timerx) + 0x48U) /*!< TIMER DMA configuration register */
#define TIMER_DMATB(timerx) REG32((timerx) + 0x4CU) /*!< TIMER DMA transfer buffer register */
/* bits definitions */
/* TIMER_CTL0 */
#define TIMER_CTL0_CEN BIT(0) /*!< TIMER counter enable */
#define TIMER_CTL0_UPDIS BIT(1) /*!< update disable */
#define TIMER_CTL0_UPS BIT(2) /*!< update source */
#define TIMER_CTL0_SPM BIT(3) /*!< single pulse mode */
#define TIMER_CTL0_DIR BIT(4) /*!< timer counter direction */
#define TIMER_CTL0_CAM BITS(5,6) /*!< center-aligned mode selection */
#define TIMER_CTL0_ARSE BIT(7) /*!< auto-reload shadow enable */
#define TIMER_CTL0_CKDIV BITS(8,9) /*!< clock division */
/* TIMER_CTL1 */
#define TIMER_CTL1_CCSE BIT(0) /*!< commutation control shadow enable */
#define TIMER_CTL1_CCUC BIT(2) /*!< commutation control shadow register update control */
#define TIMER_CTL1_DMAS BIT(3) /*!< DMA request source selection */
#define TIMER_CTL1_MMC BITS(4,6) /*!< master mode control */
#define TIMER_CTL1_TI0S BIT(7) /*!< channel 0 trigger input selection(hall mode selection) */
#define TIMER_CTL1_ISO0 BIT(8) /*!< idle state of channel 0 output */
#define TIMER_CTL1_ISO0N BIT(9) /*!< idle state of channel 0 complementary output */
#define TIMER_CTL1_ISO1 BIT(10) /*!< idle state of channel 1 output */
#define TIMER_CTL1_ISO1N BIT(11) /*!< idle state of channel 1 complementary output */
#define TIMER_CTL1_ISO2 BIT(12) /*!< idle state of channel 2 output */
#define TIMER_CTL1_ISO2N BIT(13) /*!< idle state of channel 2 complementary output */
#define TIMER_CTL1_ISO3 BIT(14) /*!< idle state of channel 3 output */
/* TIMER_SMCFG */
#define TIMER_SMCFG_SMC BITS(0,2) /*!< slave mode control */
#define TIMER_SMCFG_TRGS BITS(4,6) /*!< trigger selection */
#define TIMER_SMCFG_MSM BIT(7) /*!< master-slave mode */
#define TIMER_SMCFG_ETFC BITS(8,11) /*!< external trigger filter control */
#define TIMER_SMCFG_ETPSC BITS(12,13) /*!< external trigger prescaler */
#define TIMER_SMCFG_SMC1 BIT(14) /*!< part of SMC for enable external clock mode 1 */
#define TIMER_SMCFG_ETP BIT(15) /*!< external trigger polarity */
/* TIMER_DMAINTEN */
#define TIMER_DMAINTEN_UPIE BIT(0) /*!< update interrupt enable */
#define TIMER_DMAINTEN_CH0IE BIT(1) /*!< channel 0 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CH1IE BIT(2) /*!< channel 1 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CH2IE BIT(3) /*!< channel 2 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CH3IE BIT(4) /*!< channel 3 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CMTIE BIT(5) /*!< commutation interrupt request enable */
#define TIMER_DMAINTEN_TRGIE BIT(6) /*!< trigger interrupt enable */
#define TIMER_DMAINTEN_BRKIE BIT(7) /*!< break interrupt enable */
#define TIMER_DMAINTEN_UPDEN BIT(8) /*!< update DMA request enable */
#define TIMER_DMAINTEN_CH0DEN BIT(9) /*!< channel 0 capture/compare DMA request enable */
#define TIMER_DMAINTEN_CH1DEN BIT(10) /*!< channel 1 capture/compare DMA request enable */
#define TIMER_DMAINTEN_CH2DEN BIT(11) /*!< channel 2 capture/compare DMA request enable */
#define TIMER_DMAINTEN_CH3DEN BIT(12) /*!< channel 3 capture/compare DMA request enable */
#define TIMER_DMAINTEN_CMTDEN BIT(13) /*!< commutation DMA request enable */
#define TIMER_DMAINTEN_TRGDEN BIT(14) /*!< trigger DMA request enable */
/* TIMER_INTF */
#define TIMER_INTF_UPIF BIT(0) /*!< update interrupt flag */
#define TIMER_INTF_CH0IF BIT(1) /*!< channel 0 capture/compare interrupt flag */
#define TIMER_INTF_CH1IF BIT(2) /*!< channel 1 capture/compare interrupt flag */
#define TIMER_INTF_CH2IF BIT(3) /*!< channel 2 capture/compare interrupt flag */
#define TIMER_INTF_CH3IF BIT(4) /*!< channel 3 capture/compare interrupt flag */
#define TIMER_INTF_CMTIF BIT(5) /*!< channel commutation interrupt flag */
#define TIMER_INTF_TRGIF BIT(6) /*!< trigger interrupt flag */
#define TIMER_INTF_BRKIF BIT(7) /*!< break interrupt flag */
#define TIMER_INTF_CH0OF BIT(9) /*!< channel 0 over capture flag */
#define TIMER_INTF_CH1OF BIT(10) /*!< channel 1 over capture flag */
#define TIMER_INTF_CH2OF BIT(11) /*!< channel 2 over capture flag */
#define TIMER_INTF_CH3OF BIT(12) /*!< channel 3 over capture flag */
/* TIMER_SWEVG */
#define TIMER_SWEVG_UPG BIT(0) /*!< update event generate */
#define TIMER_SWEVG_CH0G BIT(1) /*!< channel 0 capture or compare event generation */
#define TIMER_SWEVG_CH1G BIT(2) /*!< channel 1 capture or compare event generation */
#define TIMER_SWEVG_CH2G BIT(3) /*!< channel 2 capture or compare event generation */
#define TIMER_SWEVG_CH3G BIT(4) /*!< channel 3 capture or compare event generation */
#define TIMER_SWEVG_CMTG BIT(5) /*!< channel commutation event generation */
#define TIMER_SWEVG_TRGG BIT(6) /*!< trigger event generation */
#define TIMER_SWEVG_BRKG BIT(7) /*!< break event generation */
/* TIMER_CHCTL0 */
/* output compare mode */
#define TIMER_CHCTL0_CH0MS BITS(0,1) /*!< channel 0 mode selection */
#define TIMER_CHCTL0_CH0COMFEN BIT(2) /*!< channel 0 output compare fast enable */
#define TIMER_CHCTL0_CH0COMSEN BIT(3) /*!< channel 0 output compare shadow enable */
#define TIMER_CHCTL0_CH0COMCTL BITS(4,6) /*!< channel 0 output compare control */
#define TIMER_CHCTL0_CH0COMCEN BIT(7) /*!< channel 0 output compare clear enable */
#define TIMER_CHCTL0_CH1MS BITS(8,9) /*!< channel 1 mode selection */
#define TIMER_CHCTL0_CH1COMFEN BIT(10) /*!< channel 1 output compare fast enable */
#define TIMER_CHCTL0_CH1COMSEN BIT(11) /*!< channel 1 output compare shadow enable */
#define TIMER_CHCTL0_CH1COMCTL BITS(12,14) /*!< channel 1 output compare control */
#define TIMER_CHCTL0_CH1COMCEN BIT(15) /*!< channel 1 output compare clear enable */
/* input capture mode */
#define TIMER_CHCTL0_CH0CAPPSC BITS(2,3) /*!< channel 0 input capture prescaler */
#define TIMER_CHCTL0_CH0CAPFLT BITS(4,7) /*!< channel 0 input capture filter control */
#define TIMER_CHCTL0_CH1CAPPSC BITS(10,11) /*!< channel 1 input capture prescaler */
#define TIMER_CHCTL0_CH1CAPFLT BITS(12,15) /*!< channel 1 input capture filter control */
/* TIMER_CHCTL1 */
/* output compare mode */
#define TIMER_CHCTL1_CH2MS BITS(0,1) /*!< channel 2 mode selection */
#define TIMER_CHCTL1_CH2COMFEN BIT(2) /*!< channel 2 output compare fast enable */
#define TIMER_CHCTL1_CH2COMSEN BIT(3) /*!< channel 2 output compare shadow enable */
#define TIMER_CHCTL1_CH2COMCTL BITS(4,6) /*!< channel 2 output compare control */
#define TIMER_CHCTL1_CH2COMCEN BIT(7) /*!< channel 2 output compare clear enable */
#define TIMER_CHCTL1_CH3MS BITS(8,9) /*!< channel 3 mode selection */
#define TIMER_CHCTL1_CH3COMFEN BIT(10) /*!< channel 3 output compare fast enable */
#define TIMER_CHCTL1_CH3COMSEN BIT(11) /*!< channel 3 output compare shadow enable */
#define TIMER_CHCTL1_CH3COMCTL BITS(12,14) /*!< channel 3 output compare control */
#define TIMER_CHCTL1_CH3COMCEN BIT(15) /*!< channel 3 output compare clear enable */
/* input capture mode */
#define TIMER_CHCTL1_CH2CAPPSC BITS(2,3) /*!< channel 2 input capture prescaler */
#define TIMER_CHCTL1_CH2CAPFLT BITS(4,7) /*!< channel 2 input capture filter control */
#define TIMER_CHCTL1_CH3CAPPSC BITS(10,11) /*!< channel 3 input capture prescaler */
#define TIMER_CHCTL1_CH3CAPFLT BITS(12,15) /*!< channel 3 input capture filter control */
/* TIMER_CHCTL2 */
#define TIMER_CHCTL2_CH0EN BIT(0) /*!< channel 0 capture/compare function enable */
#define TIMER_CHCTL2_CH0P BIT(1) /*!< channel 0 capture/compare function polarity */
#define TIMER_CHCTL2_CH0NEN BIT(2) /*!< channel 0 complementary output enable */
#define TIMER_CHCTL2_CH0NP BIT(3) /*!< channel 0 complementary output polarity */
#define TIMER_CHCTL2_CH1EN BIT(4) /*!< channel 1 capture/compare function enable */
#define TIMER_CHCTL2_CH1P BIT(5) /*!< channel 1 capture/compare function polarity */
#define TIMER_CHCTL2_CH1NEN BIT(6) /*!< channel 1 complementary output enable */
#define TIMER_CHCTL2_CH1NP BIT(7) /*!< channel 1 complementary output polarity */
#define TIMER_CHCTL2_CH2EN BIT(8) /*!< channel 2 capture/compare function enable */
#define TIMER_CHCTL2_CH2P BIT(9) /*!< channel 2 capture/compare function polarity */
#define TIMER_CHCTL2_CH2NEN BIT(10) /*!< channel 2 complementary output enable */
#define TIMER_CHCTL2_CH2NP BIT(11) /*!< channel 2 complementary output polarity */
#define TIMER_CHCTL2_CH3EN BIT(12) /*!< channel 3 capture/compare function enable */
#define TIMER_CHCTL2_CH3P BIT(13) /*!< channel 3 capture/compare function polarity */
/* TIMER_CNT */
#define TIMER_CNT_CNT BITS(0,15) /*!< 16 bit timer counter */
/* TIMER_PSC */
#define TIMER_PSC_PSC BITS(0,15) /*!< prescaler value of the counter clock */
/* TIMER_CAR */
#define TIMER_CAR_CARL BITS(0,15) /*!< 16 bit counter auto reload value */
/* TIMER_CREP */
#define TIMER_CREP_CREP BITS(0,7) /*!< counter repetition value */
/* TIMER_CH0CV */
#define TIMER_CH0CV_CH0VAL BITS(0,15) /*!< 16 bit capture/compare value of channel 0 */
/* TIMER_CH1CV */
#define TIMER_CH1CV_CH1VAL BITS(0,15) /*!< 16 bit capture/compare value of channel 1 */
/* TIMER_CH2CV */
#define TIMER_CH2CV_CH2VAL BITS(0,15) /*!< 16 bit capture/compare value of channel 2 */
/* TIMER_CH3CV */
#define TIMER_CH3CV_CH3VAL BITS(0,15) /*!< 16 bit capture/compare value of channel 3 */
/* TIMER_CCHP */
#define TIMER_CCHP_DTCFG BITS(0,7) /*!< dead time configure */
#define TIMER_CCHP_PROT BITS(8,9) /*!< complementary register protect control */
#define TIMER_CCHP_IOS BIT(10) /*!< idle mode off-state configure */
#define TIMER_CCHP_ROS BIT(11) /*!< run mode off-state configure */
#define TIMER_CCHP_BRKEN BIT(12) /*!< break enable */
#define TIMER_CCHP_BRKP BIT(13) /*!< break polarity */
#define TIMER_CCHP_OAEN BIT(14) /*!< output automatic enable */
#define TIMER_CCHP_POEN BIT(15) /*!< primary output enable */
/* TIMER_DMACFG */
#define TIMER_DMACFG_DMATA BITS(0,4) /*!< DMA transfer access start address */
#define TIMER_DMACFG_DMATC BITS(8,12) /*!< DMA transfer count */
/* TIMER_DMATB */
#define TIMER_DMATB_DMATB BITS(0,15) /*!< DMA transfer buffer address */
/* constants definitions */
/* TIMER init parameter struct definitions */
typedef struct
{
uint16_t prescaler; /*!< prescaler value */
uint16_t alignedmode; /*!< aligned mode */
uint16_t counterdirection; /*!< counter direction */
uint32_t period; /*!< period value */
uint16_t clockdivision; /*!< clock division value */
uint8_t repetitioncounter; /*!< the counter repetition value */
}timer_parameter_struct;
/* break parameter struct definitions */
typedef struct
{
uint16_t runoffstate; /*!< run mode off-state */
uint16_t ideloffstate; /*!< idle mode off-state */
uint16_t deadtime; /*!< dead time */
uint16_t breakpolarity; /*!< break polarity */
uint16_t outputautostate; /*!< output automatic enable */
uint16_t protectmode; /*!< complementary register protect control */
uint16_t breakstate; /*!< break enable */
}timer_break_parameter_struct;
/* channel output parameter struct definitions */
typedef struct
{
uint16_t outputstate; /*!< channel output state */
uint16_t outputnstate; /*!< channel complementary output state */
uint16_t ocpolarity; /*!< channel output polarity */
uint16_t ocnpolarity; /*!< channel complementary output polarity */
uint16_t ocidlestate; /*!< idle state of channel output */
uint16_t ocnidlestate; /*!< idle state of channel complementary output */
}timer_oc_parameter_struct;
/* channel input parameter struct definitions */
typedef struct
{
uint16_t icpolarity; /*!< channel input polarity */
uint16_t icselection; /*!< channel input mode selection */
uint16_t icprescaler; /*!< channel input capture prescaler */
uint16_t icfilter; /*!< channel input capture filter control */
}timer_ic_parameter_struct;
/* TIMER interrupt enable or disable */
#define TIMER_INT_UP TIMER_DMAINTEN_UPIE /*!< update interrupt */
#define TIMER_INT_CH0 TIMER_DMAINTEN_CH0IE /*!< channel 0 interrupt */
#define TIMER_INT_CH1 TIMER_DMAINTEN_CH1IE /*!< channel 1 interrupt */
#define TIMER_INT_CH2 TIMER_DMAINTEN_CH2IE /*!< channel 2 interrupt */
#define TIMER_INT_CH3 TIMER_DMAINTEN_CH3IE /*!< channel 3 interrupt */
#define TIMER_INT_CMT TIMER_DMAINTEN_CMTIE /*!< channel commutation interrupt flag */
#define TIMER_INT_TRG TIMER_DMAINTEN_TRGIE /*!< trigger interrupt */
#define TIMER_INT_BRK TIMER_DMAINTEN_BRKIE /*!< break interrupt */
/* TIMER interrupt flag */
#define TIMER_INT_FLAG_UP TIMER_INT_UP /*!< update interrupt */
#define TIMER_INT_FLAG_CH0 TIMER_INT_CH0 /*!< channel 0 interrupt */
#define TIMER_INT_FLAG_CH1 TIMER_INT_CH1 /*!< channel 1 interrupt */
#define TIMER_INT_FLAG_CH2 TIMER_INT_CH2 /*!< channel 2 interrupt */
#define TIMER_INT_FLAG_CH3 TIMER_INT_CH3 /*!< channel 3 interrupt */
#define TIMER_INT_FLAG_CMT TIMER_INT_CMT /*!< channel commutation interrupt flag */
#define TIMER_INT_FLAG_TRG TIMER_INT_TRG /*!< trigger interrupt */
#define TIMER_INT_FLAG_BRK TIMER_INT_BRK
/* TIMER flag */
#define TIMER_FLAG_UP TIMER_INTF_UPIF /*!< update flag */
#define TIMER_FLAG_CH0 TIMER_INTF_CH0IF /*!< channel 0 flag */
#define TIMER_FLAG_CH1 TIMER_INTF_CH1IF /*!< channel 1 flag */
#define TIMER_FLAG_CH2 TIMER_INTF_CH2IF /*!< channel 2 flag */
#define TIMER_FLAG_CH3 TIMER_INTF_CH3IF /*!< channel 3 flag */
#define TIMER_FLAG_CMT TIMER_INTF_CMTIF /*!< channel control update flag */
#define TIMER_FLAG_TRG TIMER_INTF_TRGIF /*!< trigger flag */
#define TIMER_FLAG_BRK TIMER_INTF_BRKIF /*!< break flag */
#define TIMER_FLAG_CH0O TIMER_INTF_CH0OF /*!< channel 0 overcapture flag */
#define TIMER_FLAG_CH1O TIMER_INTF_CH1OF /*!< channel 1 overcapture flag */
#define TIMER_FLAG_CH2O TIMER_INTF_CH2OF /*!< channel 2 overcapture flag */
#define TIMER_FLAG_CH3O TIMER_INTF_CH3OF /*!< channel 3 overcapture flag */
/* TIMER DMA source enable */
#define TIMER_DMA_UPD ((uint16_t)TIMER_DMAINTEN_UPDEN) /*!< update DMA enable */
#define TIMER_DMA_CH0D ((uint16_t)TIMER_DMAINTEN_CH0DEN) /*!< channel 0 DMA enable */
#define TIMER_DMA_CH1D ((uint16_t)TIMER_DMAINTEN_CH1DEN) /*!< channel 1 DMA enable */
#define TIMER_DMA_CH2D ((uint16_t)TIMER_DMAINTEN_CH2DEN) /*!< channel 2 DMA enable */
#define TIMER_DMA_CH3D ((uint16_t)TIMER_DMAINTEN_CH3DEN) /*!< channel 3 DMA enable */
#define TIMER_DMA_CMTD ((uint16_t)TIMER_DMAINTEN_CMTDEN) /*!< commutation DMA request enable */
#define TIMER_DMA_TRGD ((uint16_t)TIMER_DMAINTEN_TRGDEN) /*!< trigger DMA enable */
/* channel DMA request source selection */
#define TIMER_DMAREQUEST_UPDATEEVENT TIMER_CTL1_DMAS /*!< DMA request of channel n is sent when update event occurs */
#define TIMER_DMAREQUEST_CHANNELEVENT ((uint32_t)0x00000000U) /*!< DMA request of channel n is sent when channel n event occurs */
/* DMA access base address */
#define DMACFG_DMATA(regval) (BITS(0, 4) & ((uint32_t)(regval) << 0U))
#define TIMER_DMACFG_DMATA_CTL0 DMACFG_DMATA(0) /*!< DMA transfer address is TIMER_CTL0 */
#define TIMER_DMACFG_DMATA_CTL1 DMACFG_DMATA(1) /*!< DMA transfer address is TIMER_CTL1 */
#define TIMER_DMACFG_DMATA_SMCFG DMACFG_DMATA(2) /*!< DMA transfer address is TIMER_SMCFG */
#define TIMER_DMACFG_DMATA_DMAINTEN DMACFG_DMATA(3) /*!< DMA transfer address is TIMER_DMAINTEN */
#define TIMER_DMACFG_DMATA_INTF DMACFG_DMATA(4) /*!< DMA transfer address is TIMER_INTF */
#define TIMER_DMACFG_DMATA_SWEVG DMACFG_DMATA(5) /*!< DMA transfer address is TIMER_SWEVG */
#define TIMER_DMACFG_DMATA_CHCTL0 DMACFG_DMATA(6) /*!< DMA transfer address is TIMER_CHCTL0 */
#define TIMER_DMACFG_DMATA_CHCTL1 DMACFG_DMATA(7) /*!< DMA transfer address is TIMER_CHCTL1 */
#define TIMER_DMACFG_DMATA_CHCTL2 DMACFG_DMATA(8) /*!< DMA transfer address is TIMER_CHCTL2 */
#define TIMER_DMACFG_DMATA_CNT DMACFG_DMATA(9) /*!< DMA transfer address is TIMER_CNT */
#define TIMER_DMACFG_DMATA_PSC DMACFG_DMATA(10) /*!< DMA transfer address is TIMER_PSC */
#define TIMER_DMACFG_DMATA_CAR DMACFG_DMATA(11) /*!< DMA transfer address is TIMER_CAR */
#define TIMER_DMACFG_DMATA_CREP DMACFG_DMATA(12) /*!< DMA transfer address is TIMER_CREP */
#define TIMER_DMACFG_DMATA_CH0CV DMACFG_DMATA(13) /*!< DMA transfer address is TIMER_CH0CV */
#define TIMER_DMACFG_DMATA_CH1CV DMACFG_DMATA(14) /*!< DMA transfer address is TIMER_CH1CV */
#define TIMER_DMACFG_DMATA_CH2CV DMACFG_DMATA(15) /*!< DMA transfer address is TIMER_CH2CV */
#define TIMER_DMACFG_DMATA_CH3CV DMACFG_DMATA(16) /*!< DMA transfer address is TIMER_CH3CV */
#define TIMER_DMACFG_DMATA_CCHP DMACFG_DMATA(17) /*!< DMA transfer address is TIMER_CCHP */
#define TIMER_DMACFG_DMATA_DMACFG DMACFG_DMATA(18) /*!< DMA transfer address is TIMER_DMACFG */
/* DMA access burst length */
#define DMACFG_DMATC(regval) (BITS(8, 12) & ((uint32_t)(regval) << 8U))
#define TIMER_DMACFG_DMATC_1TRANSFER DMACFG_DMATC(0) /*!< DMA transfer 1 time */
#define TIMER_DMACFG_DMATC_2TRANSFER DMACFG_DMATC(1) /*!< DMA transfer 2 times */
#define TIMER_DMACFG_DMATC_3TRANSFER DMACFG_DMATC(2) /*!< DMA transfer 3 times */
#define TIMER_DMACFG_DMATC_4TRANSFER DMACFG_DMATC(3) /*!< DMA transfer 4 times */
#define TIMER_DMACFG_DMATC_5TRANSFER DMACFG_DMATC(4) /*!< DMA transfer 5 times */
#define TIMER_DMACFG_DMATC_6TRANSFER DMACFG_DMATC(5) /*!< DMA transfer 6 times */
#define TIMER_DMACFG_DMATC_7TRANSFER DMACFG_DMATC(6) /*!< DMA transfer 7 times */
#define TIMER_DMACFG_DMATC_8TRANSFER DMACFG_DMATC(7) /*!< DMA transfer 8 times */
#define TIMER_DMACFG_DMATC_9TRANSFER DMACFG_DMATC(8) /*!< DMA transfer 9 times */
#define TIMER_DMACFG_DMATC_10TRANSFER DMACFG_DMATC(9) /*!< DMA transfer 10 times */
#define TIMER_DMACFG_DMATC_11TRANSFER DMACFG_DMATC(10) /*!< DMA transfer 11 times */
#define TIMER_DMACFG_DMATC_12TRANSFER DMACFG_DMATC(11) /*!< DMA transfer 12 times */
#define TIMER_DMACFG_DMATC_13TRANSFER DMACFG_DMATC(12) /*!< DMA transfer 13 times */
#define TIMER_DMACFG_DMATC_14TRANSFER DMACFG_DMATC(13) /*!< DMA transfer 14 times */
#define TIMER_DMACFG_DMATC_15TRANSFER DMACFG_DMATC(14) /*!< DMA transfer 15 times */
#define TIMER_DMACFG_DMATC_16TRANSFER DMACFG_DMATC(15) /*!< DMA transfer 16 times */
#define TIMER_DMACFG_DMATC_17TRANSFER DMACFG_DMATC(16) /*!< DMA transfer 17 times */
#define TIMER_DMACFG_DMATC_18TRANSFER DMACFG_DMATC(17) /*!< DMA transfer 18 times */
/* TIMER software event generation source */
#define TIMER_EVENT_SRC_UPG ((uint16_t)0x0001U) /*!< update event generation */
#define TIMER_EVENT_SRC_CH0G ((uint16_t)0x0002U) /*!< channel 0 capture or compare event generation */
#define TIMER_EVENT_SRC_CH1G ((uint16_t)0x0004U) /*!< channel 1 capture or compare event generation */
#define TIMER_EVENT_SRC_CH2G ((uint16_t)0x0008U) /*!< channel 2 capture or compare event generation */
#define TIMER_EVENT_SRC_CH3G ((uint16_t)0x0010U) /*!< channel 3 capture or compare event generation */
#define TIMER_EVENT_SRC_CMTG ((uint16_t)0x0020U) /*!< channel commutation event generation */
#define TIMER_EVENT_SRC_TRGG ((uint16_t)0x0040U) /*!< trigger event generation */
#define TIMER_EVENT_SRC_BRKG ((uint16_t)0x0080U) /*!< break event generation */
/* center-aligned mode selection */
#define CTL0_CAM(regval) ((uint16_t)(BITS(5, 6) & ((uint32_t)(regval) << 5U)))
#define TIMER_COUNTER_EDGE CTL0_CAM(0) /*!< edge-aligned mode */
#define TIMER_COUNTER_CENTER_DOWN CTL0_CAM(1) /*!< center-aligned and counting down assert mode */
#define TIMER_COUNTER_CENTER_UP CTL0_CAM(2) /*!< center-aligned and counting up assert mode */
#define TIMER_COUNTER_CENTER_BOTH CTL0_CAM(3) /*!< center-aligned and counting up/down assert mode */
/* TIMER prescaler reload mode */
#define TIMER_PSC_RELOAD_NOW TIMER_SWEVG_UPG /*!< the prescaler is loaded right now */
#define TIMER_PSC_RELOAD_UPDATE ((uint32_t)0x00000000U) /*!< the prescaler is loaded at the next update event */
/* count direction */
#define TIMER_COUNTER_UP ((uint16_t)0x0000U) /*!< counter up direction */
#define TIMER_COUNTER_DOWN ((uint16_t)TIMER_CTL0_DIR) /*!< counter down direction */
/* specify division ratio between TIMER clock and dead-time and sampling clock */
#define CTL0_CKDIV(regval) ((uint16_t)(BITS(8, 9) & ((uint32_t)(regval) << 8U)))
#define TIMER_CKDIV_DIV1 CTL0_CKDIV(0) /*!< clock division value is 1,fDTS=fTIMER_CK */
#define TIMER_CKDIV_DIV2 CTL0_CKDIV(1) /*!< clock division value is 2,fDTS= fTIMER_CK/2 */
#define TIMER_CKDIV_DIV4 CTL0_CKDIV(2) /*!< clock division value is 4, fDTS= fTIMER_CK/4 */
/* single pulse mode */
#define TIMER_SP_MODE_SINGLE TIMER_CTL0_SPM /*!< single pulse mode */
#define TIMER_SP_MODE_REPETITIVE ((uint32_t)0x00000000U) /*!< repetitive pulse mode */
/* update source */
#define TIMER_UPDATE_SRC_REGULAR TIMER_CTL0_UPS /*!< update generate only by counter overflow/underflow */
#define TIMER_UPDATE_SRC_GLOBAL ((uint32_t)0x00000000U) /*!< update generate by setting of UPG bit or the counter overflow/underflow,or the slave mode controller trigger */
/* run mode off-state configure */
#define TIMER_ROS_STATE_ENABLE ((uint16_t)TIMER_CCHP_ROS) /*!< when POEN bit is set, the channel output signals(CHx_O/CHx_ON) are enabled, with relationship to CHxEN/CHxNEN bits */
#define TIMER_ROS_STATE_DISABLE ((uint16_t)0x0000U) /*!< when POEN bit is set, the channel output signals(CHx_O/CHx_ON) are disabled */
/* idle mode off-state configure */
#define TIMER_IOS_STATE_ENABLE ((uint16_t)TIMER_CCHP_IOS) /*!< when POEN bit is reset, he channel output signals(CHx_O/CHx_ON) are enabled, with relationship to CHxEN/CHxNEN bits */
#define TIMER_IOS_STATE_DISABLE ((uint16_t)0x0000U) /*!< when POEN bit is reset, the channel output signals(CHx_O/CHx_ON) are disabled */
/* break input polarity */
#define TIMER_BREAK_POLARITY_LOW ((uint16_t)0x0000U) /*!< break input polarity is low */
#define TIMER_BREAK_POLARITY_HIGH ((uint16_t)TIMER_CCHP_BRKP) /*!< break input polarity is high */
/* output automatic enable */
#define TIMER_OUTAUTO_ENABLE ((uint16_t)TIMER_CCHP_OAEN) /*!< output automatic enable */
#define TIMER_OUTAUTO_DISABLE ((uint16_t)0x0000U) /*!< output automatic disable */
/* complementary register protect control */
#define CCHP_PROT(regval) ((uint16_t)(BITS(8, 9) & ((uint32_t)(regval) << 8U)))
#define TIMER_CCHP_PROT_OFF CCHP_PROT(0) /*!< protect disable */
#define TIMER_CCHP_PROT_0 CCHP_PROT(1) /*!< PROT mode 0 */
#define TIMER_CCHP_PROT_1 CCHP_PROT(2) /*!< PROT mode 1 */
#define TIMER_CCHP_PROT_2 CCHP_PROT(3) /*!< PROT mode 2 */
/* break input enable */
#define TIMER_BREAK_ENABLE ((uint16_t)TIMER_CCHP_BRKEN) /*!< break input enable */
#define TIMER_BREAK_DISABLE ((uint16_t)0x0000U) /*!< break input disable */
/* TIMER channel n(n=0,1,2,3) */
#define TIMER_CH_0 ((uint16_t)0x0000U) /*!< TIMER channel 0(TIMERx(x=0..4)) */
#define TIMER_CH_1 ((uint16_t)0x0001U) /*!< TIMER channel 1(TIMERx(x=0..4)) */
#define TIMER_CH_2 ((uint16_t)0x0002U) /*!< TIMER channel 2(TIMERx(x=0..4)) */
#define TIMER_CH_3 ((uint16_t)0x0003U) /*!< TIMER channel 3(TIMERx(x=0..4)) */
/* channel enable state */
#define TIMER_CCX_ENABLE ((uint16_t)0x0001U) /*!< channel enable */
#define TIMER_CCX_DISABLE ((uint16_t)0x0000U) /*!< channel disable */
/* channel complementary output enable state */
#define TIMER_CCXN_ENABLE ((uint16_t)0x0004U) /*!< channel complementary enable */
#define TIMER_CCXN_DISABLE ((uint16_t)0x0000U) /*!< channel complementary disable */
/* channel output polarity */
#define TIMER_OC_POLARITY_HIGH ((uint16_t)0x0000U) /*!< channel output polarity is high */
#define TIMER_OC_POLARITY_LOW ((uint16_t)0x0002U) /*!< channel output polarity is low */
/* channel complementary output polarity */
#define TIMER_OCN_POLARITY_HIGH ((uint16_t)0x0000U) /*!< channel complementary output polarity is high */
#define TIMER_OCN_POLARITY_LOW ((uint16_t)0x0008U) /*!< channel complementary output polarity is low */
/* idle state of channel output */
#define TIMER_OC_IDLE_STATE_HIGH ((uint16_t)0x0100) /*!< idle state of channel output is high */
#define TIMER_OC_IDLE_STATE_LOW ((uint16_t)0x0000) /*!< idle state of channel output is low */
/* idle state of channel complementary output */
#define TIMER_OCN_IDLE_STATE_HIGH ((uint16_t)0x0200U) /*!< idle state of channel complementary output is high */
#define TIMER_OCN_IDLE_STATE_LOW ((uint16_t)0x0000U) /*!< idle state of channel complementary output is low */
/* channel output compare mode */
#define TIMER_OC_MODE_TIMING ((uint16_t)0x0000U) /*!< timing mode */
#define TIMER_OC_MODE_ACTIVE ((uint16_t)0x0010U) /*!< active mode */
#define TIMER_OC_MODE_INACTIVE ((uint16_t)0x0020U) /*!< inactive mode */
#define TIMER_OC_MODE_TOGGLE ((uint16_t)0x0030U) /*!< toggle mode */
#define TIMER_OC_MODE_LOW ((uint16_t)0x0040U) /*!< force low mode */
#define TIMER_OC_MODE_HIGH ((uint16_t)0x0050U) /*!< force high mode */
#define TIMER_OC_MODE_PWM0 ((uint16_t)0x0060U) /*!< PWM0 mode */
#define TIMER_OC_MODE_PWM1 ((uint16_t)0x0070U) /*!< PWM1 mode */
/* channel output compare shadow enable */
#define TIMER_OC_SHADOW_ENABLE ((uint16_t)0x0008U) /*!< channel output shadow state enable */
#define TIMER_OC_SHADOW_DISABLE ((uint16_t)0x0000U) /*!< channel output shadow state disable */
/* channel output compare fast enable */
#define TIMER_OC_FAST_ENABLE ((uint16_t)0x0004) /*!< channel output fast function enable */
#define TIMER_OC_FAST_DISABLE ((uint16_t)0x0000) /*!< channel output fast function disable */
/* channel output compare clear enable */
#define TIMER_OC_CLEAR_ENABLE ((uint16_t)0x0080U) /*!< channel output clear function enable */
#define TIMER_OC_CLEAR_DISABLE ((uint16_t)0x0000U) /*!< channel output clear function disable */
/* channel control shadow register update control */
#define TIMER_UPDATECTL_CCU ((uint32_t)0x00000000U) /*!< the shadow registers update by when CMTG bit is set */
#define TIMER_UPDATECTL_CCUTRI TIMER_CTL1_CCUC /*!< the shadow registers update by when CMTG bit is set or an rising edge of TRGI occurs */
/* channel input capture polarity */
#define TIMER_IC_POLARITY_RISING ((uint16_t)0x0000U) /*!< input capture rising edge */
#define TIMER_IC_POLARITY_FALLING ((uint16_t)0x0002U) /*!< input capture falling edge */
#define TIMER_IC_POLARITY_BOTH_EDGE ((uint16_t)0x000AU) /*!< input capture both edge */
/* TIMER input capture selection */
#define TIMER_IC_SELECTION_DIRECTTI ((uint16_t)0x0001U) /*!< channel n is configured as input and icy is mapped on CIy */
#define TIMER_IC_SELECTION_INDIRECTTI ((uint16_t)0x0002U) /*!< channel n is configured as input and icy is mapped on opposite input */
#define TIMER_IC_SELECTION_ITS ((uint16_t)0x0003U) /*!< channel n is configured as input and icy is mapped on ITS */
/* channel input capture prescaler */
#define TIMER_IC_PSC_DIV1 ((uint16_t)0x0000U) /*!< no prescaler */
#define TIMER_IC_PSC_DIV2 ((uint16_t)0x0004U) /*!< divided by 2 */
#define TIMER_IC_PSC_DIV4 ((uint16_t)0x0008U) /*!< divided by 4 */
#define TIMER_IC_PSC_DIV8 ((uint16_t)0x000CU) /*!< divided by 8 */
/* trigger selection */
#define SMCFG_TRGSEL(regval) (BITS(4, 6) & ((uint32_t)(regval) << 4U))
#define TIMER_SMCFG_TRGSEL_ITI0 SMCFG_TRGSEL(0) /*!< internal trigger 0 */
#define TIMER_SMCFG_TRGSEL_ITI1 SMCFG_TRGSEL(1) /*!< internal trigger 1 */
#define TIMER_SMCFG_TRGSEL_ITI2 SMCFG_TRGSEL(2) /*!< internal trigger 2 */
#define TIMER_SMCFG_TRGSEL_ITI3 SMCFG_TRGSEL(3) /*!< internal trigger 3 */
#define TIMER_SMCFG_TRGSEL_CI0F_ED SMCFG_TRGSEL(4) /*!< TI0 Edge Detector */
#define TIMER_SMCFG_TRGSEL_CI0FE0 SMCFG_TRGSEL(5) /*!< filtered TIMER input 0 */
#define TIMER_SMCFG_TRGSEL_CI1FE1 SMCFG_TRGSEL(6) /*!< filtered TIMER input 1 */
#define TIMER_SMCFG_TRGSEL_ETIFP SMCFG_TRGSEL(7) /*!< filtered external trigger input */
/* master mode control */
#define CTL1_MMC(regval) (BITS(4, 6) & ((uint32_t)(regval) << 4U))
#define TIMER_TRI_OUT_SRC_RESET CTL1_MMC(0) /*!< the UPG bit as trigger output */
#define TIMER_TRI_OUT_SRC_ENABLE CTL1_MMC(1) /*!< the counter enable signal TIMER_CTL0_CEN as trigger output */
#define TIMER_TRI_OUT_SRC_UPDATE CTL1_MMC(2) /*!< update event as trigger output */
#define TIMER_TRI_OUT_SRC_CH0 CTL1_MMC(3) /*!< a capture or a compare match occurred in channel 0 as trigger output TRGO */
#define TIMER_TRI_OUT_SRC_O0CPRE CTL1_MMC(4) /*!< O0CPRE as trigger output */
#define TIMER_TRI_OUT_SRC_O1CPRE CTL1_MMC(5) /*!< O1CPRE as trigger output */
#define TIMER_TRI_OUT_SRC_O2CPRE CTL1_MMC(6) /*!< O2CPRE as trigger output */
#define TIMER_TRI_OUT_SRC_O3CPRE CTL1_MMC(7) /*!< O3CPRE as trigger output */
/* slave mode control */
#define SMCFG_SMC(regval) (BITS(0, 2) & ((uint32_t)(regval) << 0U))
#define TIMER_SLAVE_MODE_DISABLE SMCFG_SMC(0) /*!< slave mode disable */
#define TIMER_ENCODER_MODE0 SMCFG_SMC(1) /*!< encoder mode 0 */
#define TIMER_ENCODER_MODE1 SMCFG_SMC(2) /*!< encoder mode 1 */
#define TIMER_ENCODER_MODE2 SMCFG_SMC(3) /*!< encoder mode 2 */
#define TIMER_SLAVE_MODE_RESTART SMCFG_SMC(4) /*!< restart mode */
#define TIMER_SLAVE_MODE_PAUSE SMCFG_SMC(5) /*!< pause mode */
#define TIMER_SLAVE_MODE_EVENT SMCFG_SMC(6) /*!< event mode */
#define TIMER_SLAVE_MODE_EXTERNAL0 SMCFG_SMC(7) /*!< external clock mode 0 */
/* master slave mode selection */
#define TIMER_MASTER_SLAVE_MODE_ENABLE TIMER_SMCFG_MSM /*!< master slave mode enable */
#define TIMER_MASTER_SLAVE_MODE_DISABLE ((uint32_t)0x00000000U) /*!< master slave mode disable */
/* external trigger prescaler */
#define SMCFG_ETPSC(regval) (BITS(12, 13) & ((uint32_t)(regval) << 12U))
#define TIMER_EXT_TRI_PSC_OFF SMCFG_ETPSC(0) /*!< no divided */
#define TIMER_EXT_TRI_PSC_DIV2 SMCFG_ETPSC(1) /*!< divided by 2 */
#define TIMER_EXT_TRI_PSC_DIV4 SMCFG_ETPSC(2) /*!< divided by 4 */
#define TIMER_EXT_TRI_PSC_DIV8 SMCFG_ETPSC(3) /*!< divided by 8 */
/* external trigger polarity */
#define TIMER_ETP_FALLING TIMER_SMCFG_ETP /*!< active low or falling edge active */
#define TIMER_ETP_RISING ((uint32_t)0x00000000U) /*!< active high or rising edge active */
/* channel 0 trigger input selection */
#define TIMER_HALLINTERFACE_ENABLE TIMER_CTL1_TI0S /*!< TIMER hall sensor mode enable */
#define TIMER_HALLINTERFACE_DISABLE ((uint32_t)0x00000000U) /*!< TIMER hall sensor mode disable */
/* TIMERx(x=0..4) write CHxVAL register selection */
#define TIMER_CHVSEL_ENABLE ((uint16_t)TIMER_CFG_OUTSEL) /*!< write CHxVAL register selection enable */
#define TIMER_CHVSEL_DISABLE ((uint16_t)0x0000U) /*!< write CHxVAL register selection disable */
/* function declarations */
/* TIMER timebase */
/* deinit a timer */
void timer_deinit(uint32_t timer_periph);
/* initialize TIMER init parameter struct */
void timer_struct_para_init(timer_parameter_struct* initpara);
/* initialize TIMER counter */
void timer_init(uint32_t timer_periph, timer_parameter_struct* initpara);
/* enable a timer */
void timer_enable(uint32_t timer_periph);
/* disable a timer */
void timer_disable(uint32_t timer_periph);
/* enable the auto reload shadow function */
void timer_auto_reload_shadow_enable(uint32_t timer_periph);
/* disable the auto reload shadow function */
void timer_auto_reload_shadow_disable(uint32_t timer_periph);
/* enable the update event */
void timer_update_event_enable(uint32_t timer_periph);
/* disable the update event */
void timer_update_event_disable(uint32_t timer_periph);
/* set TIMER counter alignment mode */
void timer_counter_alignment(uint32_t timer_periph, uint16_t aligned);
/* set TIMER counter up direction */
void timer_counter_up_direction(uint32_t timer_periph);
/* set TIMER counter down direction */
void timer_counter_down_direction(uint32_t timer_periph);
/* configure TIMER prescaler */
void timer_prescaler_config(uint32_t timer_periph, uint16_t prescaler, uint32_t pscreload);
/* configure TIMER repetition register value */
void timer_repetition_value_config(uint32_t timer_periph, uint16_t repetition);
/* configure TIMER autoreload register value */
void timer_autoreload_value_config(uint32_t timer_periph, uint16_t autoreload);
/* configure TIMER counter register value */
void timer_counter_value_config(uint32_t timer_periph, uint16_t counter);
/* read TIMER counter value */
uint32_t timer_counter_read(uint32_t timer_periph);
/* read TIMER prescaler value */
uint16_t timer_prescaler_read(uint32_t timer_periph);
/* configure TIMER single pulse mode */
void timer_single_pulse_mode_config(uint32_t timer_periph, uint32_t spmode);
/* configure TIMER update source */
void timer_update_source_config(uint32_t timer_periph, uint32_t update);
/* TIMER DMA and event */
/* enable the TIMER DMA */
void timer_dma_enable(uint32_t timer_periph, uint16_t dma);
/* disable the TIMER DMA */
void timer_dma_disable(uint32_t timer_periph, uint16_t dma);
/* channel DMA request source selection */
void timer_channel_dma_request_source_select(uint32_t timer_periph, uint32_t dma_request);
/* configure the TIMER DMA transfer */
void timer_dma_transfer_config(uint32_t timer_periph, uint32_t dma_baseaddr, uint32_t dma_lenth);
/* software generate events */
void timer_event_software_generate(uint32_t timer_periph, uint16_t event);
/* TIMER channel complementary protection */
/* initialize TIMER break parameter struct */
void timer_break_struct_para_init(timer_break_parameter_struct* breakpara);
/* configure TIMER break function */
void timer_break_config(uint32_t timer_periph, timer_break_parameter_struct* breakpara);
/* enable TIMER break function */
void timer_break_enable(uint32_t timer_periph);
/* disable TIMER break function */
void timer_break_disable(uint32_t timer_periph);
/* enable TIMER output automatic function */
void timer_automatic_output_enable(uint32_t timer_periph);
/* disable TIMER output automatic function */
void timer_automatic_output_disable(uint32_t timer_periph);
/* enable or disable TIMER primary output function */
void timer_primary_output_config(uint32_t timer_periph, ControlStatus newvalue);
/* enable or disable channel capture/compare control shadow register */
void timer_channel_control_shadow_config(uint32_t timer_periph, ControlStatus newvalue);
/* configure TIMER channel control shadow register update control */
void timer_channel_control_shadow_update_config(uint32_t timer_periph, uint32_t ccuctl);
/* TIMER channel output */
/* initialize TIMER channel output parameter struct */
void timer_channel_output_struct_para_init(timer_oc_parameter_struct* ocpara);
/* configure TIMER channel output function */
void timer_channel_output_config(uint32_t timer_periph, uint16_t channel, timer_oc_parameter_struct* ocpara);
/* configure TIMER channel output compare mode */
void timer_channel_output_mode_config(uint32_t timer_periph, uint16_t channel, uint16_t ocmode);
/* configure TIMER channel output pulse value */
void timer_channel_output_pulse_value_config(uint32_t timer_periph, uint16_t channel, uint32_t pulse);
/* configure TIMER channel output shadow function */
void timer_channel_output_shadow_config(uint32_t timer_periph, uint16_t channel, uint16_t ocshadow);
/* configure TIMER channel output fast function */
void timer_channel_output_fast_config(uint32_t timer_periph, uint16_t channel, uint16_t ocfast);
/* configure TIMER channel output clear function */
void timer_channel_output_clear_config(uint32_t timer_periph, uint16_t channel, uint16_t occlear);
/* configure TIMER channel output polarity */
void timer_channel_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocpolarity);
/* configure TIMER channel complementary output polarity */
void timer_channel_complementary_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnpolarity);
/* configure TIMER channel enable state */
void timer_channel_output_state_config(uint32_t timer_periph, uint16_t channel, uint32_t state);
/* configure TIMER channel complementary output enable state */
void timer_channel_complementary_output_state_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnstate);
/* TIMER channel input */
/* initialize TIMER channel input parameter struct */
void timer_channel_input_struct_para_init(timer_ic_parameter_struct* icpara);
/* configure TIMER input capture parameter */
void timer_input_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpara);
/* configure TIMER channel input capture prescaler value */
void timer_channel_input_capture_prescaler_config(uint32_t timer_periph, uint16_t channel, uint16_t prescaler);
/* read TIMER channel capture compare register value */
uint32_t timer_channel_capture_value_register_read(uint32_t timer_periph, uint16_t channel);
/* configure TIMER input pwm capture function */
void timer_input_pwm_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpwm);
/* configure TIMER hall sensor mode */
void timer_hall_mode_config(uint32_t timer_periph, uint32_t hallmode);
/* TIMER master and slave mode */
/* select TIMER input trigger source */
void timer_input_trigger_source_select(uint32_t timer_periph, uint32_t intrigger);
/* select TIMER master mode output trigger source */
void timer_master_output_trigger_source_select(uint32_t timer_periph, uint32_t outrigger);
/* select TIMER slave mode */
void timer_slave_mode_select(uint32_t timer_periph, uint32_t slavemode);
/* configure TIMER master slave mode */
void timer_master_slave_mode_config(uint32_t timer_periph, uint32_t masterslave);
/* configure TIMER external trigger input */
void timer_external_trigger_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
/* configure TIMER quadrature decoder mode */
void timer_quadrature_decoder_mode_config(uint32_t timer_periph, uint32_t decomode, uint16_t ic0polarity, uint16_t ic1polarity);
/* configure TIMER internal clock mode */
void timer_internal_clock_config(uint32_t timer_periph);
/* configure TIMER the internal trigger as external clock input */
void timer_internal_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t intrigger);
/* configure TIMER the external trigger as external clock input */
void timer_external_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t extrigger, uint16_t extpolarity, uint32_t extfilter);
/* configure TIMER the external clock mode 0 */
void timer_external_clock_mode0_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
/* configure TIMER the external clock mode 1 */
void timer_external_clock_mode1_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
/* disable TIMER the external clock mode 1 */
void timer_external_clock_mode1_disable(uint32_t timer_periph);
/* TIMER interrupt and flag */
/* enable the TIMER interrupt */
void timer_interrupt_enable(uint32_t timer_periph, uint32_t interrupt);
/* disable the TIMER interrupt */
void timer_interrupt_disable(uint32_t timer_periph, uint32_t interrupt);
/* get TIMER interrupt flag */
FlagStatus timer_interrupt_flag_get(uint32_t timer_periph, uint32_t interrupt);
/* clear TIMER interrupt flag */
void timer_interrupt_flag_clear(uint32_t timer_periph, uint32_t interrupt);
/* get TIMER flag */
FlagStatus timer_flag_get(uint32_t timer_periph, uint32_t flag);
/* clear TIMER flag */
void timer_flag_clear(uint32_t timer_periph, uint32_t flag);
#endif /* GD32VF103_TIMER_H */

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/*!
\file gd32vf103_usart.h
\brief definitions for the USART
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-09-18, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2018, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_USART_H
#define GD32VF103_USART_H
#include "gd32vf103.h"
/* USARTx(x=0,1,2)/UARTx(x=3,4) definitions */
#define USART1 USART_BASE /*!< USART1 base address */
#define USART2 (USART_BASE+(0x00000400U)) /*!< USART2 base address */
#define UART3 (USART_BASE+(0x00000800U)) /*!< UART3 base address */
#define UART4 (USART_BASE+(0x00000C00U)) /*!< UART4 base address */
#define USART0 (USART_BASE+(0x0000F400U)) /*!< USART0 base address */
/* registers definitions */
#define USART_STAT(usartx) REG32((usartx) + (0x00000000U)) /*!< USART status register */
#define USART_DATA(usartx) REG32((usartx) + (0x00000004U)) /*!< USART data register */
#define USART_BAUD(usartx) REG32((usartx) + (0x00000008U)) /*!< USART baud rate register */
#define USART_CTL0(usartx) REG32((usartx) + (0x0000000CU)) /*!< USART control register 0 */
#define USART_CTL1(usartx) REG32((usartx) + (0x00000010U)) /*!< USART control register 1 */
#define USART_CTL2(usartx) REG32((usartx) + (0x00000014U)) /*!< USART control register 2 */
#define USART_GP(usartx) REG32((usartx) + (0x00000018U)) /*!< USART guard time and prescaler register */
/* bits definitions */
/* USARTx_STAT */
#define USART_STAT_PERR BIT(0) /*!< parity error flag */
#define USART_STAT_FERR BIT(1) /*!< frame error flag */
#define USART_STAT_NERR BIT(2) /*!< noise error flag */
#define USART_STAT_ORERR BIT(3) /*!< overrun error */
#define USART_STAT_IDLEF BIT(4) /*!< IDLE frame detected flag */
#define USART_STAT_RBNE BIT(5) /*!< read data buffer not empty */
#define USART_STAT_TC BIT(6) /*!< transmission complete */
#define USART_STAT_TBE BIT(7) /*!< transmit data buffer empty */
#define USART_STAT_LBDF BIT(8) /*!< LIN break detected flag */
#define USART_STAT_CTSF BIT(9) /*!< CTS change flag */
/* USARTx_DATA */
#define USART_DATA_DATA BITS(0,8) /*!< transmit or read data value */
/* USARTx_BAUD */
#define USART_BAUD_FRADIV BITS(0,3) /*!< fraction part of baud-rate divider */
#define USART_BAUD_INTDIV BITS(4,15) /*!< integer part of baud-rate divider */
/* USARTx_CTL0 */
#define USART_CTL0_SBKCMD BIT(0) /*!< send break command */
#define USART_CTL0_RWU BIT(1) /*!< receiver wakeup from mute mode */
#define USART_CTL0_REN BIT(2) /*!< receiver enable */
#define USART_CTL0_TEN BIT(3) /*!< transmitter enable */
#define USART_CTL0_IDLEIE BIT(4) /*!< idle line detected interrupt enable */
#define USART_CTL0_RBNEIE BIT(5) /*!< read data buffer not empty interrupt and overrun error interrupt enable */
#define USART_CTL0_TCIE BIT(6) /*!< transmission complete interrupt enable */
#define USART_CTL0_TBEIE BIT(7) /*!< transmitter buffer empty interrupt enable */
#define USART_CTL0_PERRIE BIT(8) /*!< parity error interrupt enable */
#define USART_CTL0_PM BIT(9) /*!< parity mode */
#define USART_CTL0_PCEN BIT(10) /*!< parity check function enable */
#define USART_CTL0_WM BIT(11) /*!< wakeup method in mute mode */
#define USART_CTL0_WL BIT(12) /*!< word length */
#define USART_CTL0_UEN BIT(13) /*!< USART enable */
/* USARTx_CTL1 */
#define USART_CTL1_ADDR BITS(0,3) /*!< address of USART */
#define USART_CTL1_LBLEN BIT(5) /*!< LIN break frame length */
#define USART_CTL1_LBDIE BIT(6) /*!< LIN break detected interrupt eanble */
#define USART_CTL1_CLEN BIT(8) /*!< CK length */
#define USART_CTL1_CPH BIT(9) /*!< CK phase */
#define USART_CTL1_CPL BIT(10) /*!< CK polarity */
#define USART_CTL1_CKEN BIT(11) /*!< CK pin enable */
#define USART_CTL1_STB BITS(12,13) /*!< STOP bits length */
#define USART_CTL1_LMEN BIT(14) /*!< LIN mode enable */
/* USARTx_CTL2 */
#define USART_CTL2_ERRIE BIT(0) /*!< error interrupt enable */
#define USART_CTL2_IREN BIT(1) /*!< IrDA mode enable */
#define USART_CTL2_IRLP BIT(2) /*!< IrDA low-power */
#define USART_CTL2_HDEN BIT(3) /*!< half-duplex enable */
#define USART_CTL2_NKEN BIT(4) /*!< NACK enable in smartcard mode */
#define USART_CTL2_SCEN BIT(5) /*!< smartcard mode enable */
#define USART_CTL2_DENR BIT(6) /*!< DMA request enable for reception */
#define USART_CTL2_DENT BIT(7) /*!< DMA request enable for transmission */
#define USART_CTL2_RTSEN BIT(8) /*!< RTS enable */
#define USART_CTL2_CTSEN BIT(9) /*!< CTS enable */
#define USART_CTL2_CTSIE BIT(10) /*!< CTS interrupt enable */
/* USARTx_GP */
#define USART_GP_PSC BITS(0,7) /*!< prescaler value for dividing the system clock */
#define USART_GP_GUAT BITS(8,15) /*!< guard time value in smartcard mode */
/* constants definitions */
/* define the USART bit position and its register index offset */
#define USART_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define USART_REG_VAL(usartx, offset) (REG32((usartx) + (((uint32_t)(offset) & (0x0000FFFFU)) >> 6)))
#define USART_BIT_POS(val) ((uint32_t)(val) & (0x0000001FU))
#define USART_REGIDX_BIT2(regidx, bitpos, regidx2, bitpos2) (((uint32_t)(regidx2) << 22) | (uint32_t)((bitpos2) << 16)\
| (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos)))
#define USART_REG_VAL2(usartx, offset) (REG32((usartx) + ((uint32_t)(offset) >> 22)))
#define USART_BIT_POS2(val) (((uint32_t)(val) & (0x001F0000U)) >> 16)
/* register offset */
#define USART_STAT_REG_OFFSET (0x00000000U) /*!< STAT register offset */
#define USART_CTL0_REG_OFFSET (0x0000000CU) /*!< CTL0 register offset */
#define USART_CTL1_REG_OFFSET (0x00000010U) /*!< CTL1 register offset */
#define USART_CTL2_REG_OFFSET (0x00000014U) /*!< CTL2 register offset */
/* USART flags */
typedef enum
{
/* flags in STAT register */
USART_FLAG_CTS = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 9U), /*!< CTS change flag */
USART_FLAG_LBD = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 8U), /*!< LIN break detected flag */
USART_FLAG_TBE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 7U), /*!< transmit data buffer empty */
USART_FLAG_TC = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 6U), /*!< transmission complete */
USART_FLAG_RBNE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 5U), /*!< read data buffer not empty */
USART_FLAG_IDLE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 4U), /*!< IDLE frame detected flag */
USART_FLAG_ORERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 3U), /*!< overrun error */
USART_FLAG_NERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 2U), /*!< noise error flag */
USART_FLAG_FERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 1U), /*!< frame error flag */
USART_FLAG_PERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 0U), /*!< parity error flag */
}usart_flag_enum;
/* USART interrupt flags */
typedef enum
{
/* interrupt flags in CTL0 register */
USART_INT_FLAG_PERR = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 8U, USART_STAT_REG_OFFSET, 0U), /*!< parity error interrupt and flag */
USART_INT_FLAG_TBE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 7U, USART_STAT_REG_OFFSET, 7U), /*!< transmitter buffer empty interrupt and flag */
USART_INT_FLAG_TC = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 6U, USART_STAT_REG_OFFSET, 6U), /*!< transmission complete interrupt and flag */
USART_INT_FLAG_RBNE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 5U, USART_STAT_REG_OFFSET, 5U), /*!< read data buffer not empty interrupt and flag */
USART_INT_FLAG_RBNE_ORERR = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 5U, USART_STAT_REG_OFFSET, 3U), /*!< read data buffer not empty interrupt and overrun error flag */
USART_INT_FLAG_IDLE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 4U, USART_STAT_REG_OFFSET, 4U), /*!< IDLE line detected interrupt and flag */
/* interrupt flags in CTL1 register */
USART_INT_FLAG_LBD = USART_REGIDX_BIT2(USART_CTL1_REG_OFFSET, 6U, USART_STAT_REG_OFFSET, 8U), /*!< LIN break detected interrupt and flag */
/* interrupt flags in CTL2 register */
USART_INT_FLAG_CTS = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 10U, USART_STAT_REG_OFFSET, 9U), /*!< CTS interrupt and flag */
USART_INT_FLAG_ERR_ORERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 3U), /*!< error interrupt and overrun error */
USART_INT_FLAG_ERR_NERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 2U), /*!< error interrupt and noise error flag */
USART_INT_FLAG_ERR_FERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 1U), /*!< error interrupt and frame error flag */
}usart_interrupt_flag_enum;
/* USART interrupt enable or disable */
typedef enum
{
/* interrupt in CTL0 register */
USART_INT_PERR = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 8U), /*!< parity error interrupt */
USART_INT_TBE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 7U), /*!< transmitter buffer empty interrupt */
USART_INT_TC = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 6U), /*!< transmission complete interrupt */
USART_INT_RBNE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 5U), /*!< read data buffer not empty interrupt and overrun error interrupt */
USART_INT_IDLE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 4U), /*!< IDLE line detected interrupt */
/* interrupt in CTL1 register */
USART_INT_LBD = USART_REGIDX_BIT(USART_CTL1_REG_OFFSET, 6U), /*!< LIN break detected interrupt */
/* interrupt in CTL2 register */
USART_INT_CTS = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 10U), /*!< CTS interrupt */
USART_INT_ERR = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 0U), /*!< error interrupt */
}usart_interrupt_enum;
/* USART receiver configure */
#define CTL0_REN(regval) (BIT(2) & ((uint32_t)(regval) << 2))
#define USART_RECEIVE_ENABLE CTL0_REN(1) /*!< enable receiver */
#define USART_RECEIVE_DISABLE CTL0_REN(0) /*!< disable receiver */
/* USART transmitter configure */
#define CTL0_TEN(regval) (BIT(3) & ((uint32_t)(regval) << 3))
#define USART_TRANSMIT_ENABLE CTL0_TEN(1) /*!< enable transmitter */
#define USART_TRANSMIT_DISABLE CTL0_TEN(0) /*!< disable transmitter */
/* USART parity bits definitions */
#define CTL0_PM(regval) (BITS(9,10) & ((uint32_t)(regval) << 9))
#define USART_PM_NONE CTL0_PM(0) /*!< no parity */
#define USART_PM_EVEN CTL0_PM(2) /*!< even parity */
#define USART_PM_ODD CTL0_PM(3) /*!< odd parity */
/* USART wakeup method in mute mode */
#define CTL0_WM(regval) (BIT(11) & ((uint32_t)(regval) << 11))
#define USART_WM_IDLE CTL0_WM(0) /*!< idle line */
#define USART_WM_ADDR CTL0_WM(1) /*!< address match */
/* USART word length definitions */
#define CTL0_WL(regval) (BIT(12) & ((uint32_t)(regval) << 12))
#define USART_WL_8BIT CTL0_WL(0) /*!< 8 bits */
#define USART_WL_9BIT CTL0_WL(1) /*!< 9 bits */
/* USART stop bits definitions */
#define CTL1_STB(regval) (BITS(12,13) & ((uint32_t)(regval) << 12))
#define USART_STB_1BIT CTL1_STB(0) /*!< 1 bit */
#define USART_STB_0_5BIT CTL1_STB(1) /*!< 0.5 bit */
#define USART_STB_2BIT CTL1_STB(2) /*!< 2 bits */
#define USART_STB_1_5BIT CTL1_STB(3) /*!< 1.5 bits */
/* USART LIN break frame length */
#define CTL1_LBLEN(regval) (BIT(5) & ((uint32_t)(regval) << 5))
#define USART_LBLEN_10B CTL1_LBLEN(0) /*!< 10 bits */
#define USART_LBLEN_11B CTL1_LBLEN(1) /*!< 11 bits */
/* USART CK length */
#define CTL1_CLEN(regval) (BIT(8) & ((uint32_t)(regval) << 8))
#define USART_CLEN_NONE CTL1_CLEN(0) /*!< there are 7 CK pulses for an 8 bit frame and 8 CK pulses for a 9 bit frame */
#define USART_CLEN_EN CTL1_CLEN(1) /*!< there are 8 CK pulses for an 8 bit frame and 9 CK pulses for a 9 bit frame */
/* USART clock phase */
#define CTL1_CPH(regval) (BIT(9) & ((uint32_t)(regval) << 9))
#define USART_CPH_1CK CTL1_CPH(0) /*!< first clock transition is the first data capture edge */
#define USART_CPH_2CK CTL1_CPH(1) /*!< second clock transition is the first data capture edge */
/* USART clock polarity */
#define CTL1_CPL(regval) (BIT(10) & ((uint32_t)(regval) << 10))
#define USART_CPL_LOW CTL1_CPL(0) /*!< steady low value on CK pin */
#define USART_CPL_HIGH CTL1_CPL(1) /*!< steady high value on CK pin */
/* USART DMA request for receive configure */
#define CLT2_DENR(regval) (BIT(6) & ((uint32_t)(regval) << 6))
#define USART_DENR_ENABLE CLT2_DENR(1) /*!< DMA request enable for reception */
#define USART_DENR_DISABLE CLT2_DENR(0) /*!< DMA request disable for reception */
/* USART DMA request for transmission configure */
#define CLT2_DENT(regval) (BIT(7) & ((uint32_t)(regval) << 7))
#define USART_DENT_ENABLE CLT2_DENT(1) /*!< DMA request enable for transmission */
#define USART_DENT_DISABLE CLT2_DENT(0) /*!< DMA request disable for transmission */
/* USART RTS configure */
#define CLT2_RTSEN(regval) (BIT(8) & ((uint32_t)(regval) << 8))
#define USART_RTS_ENABLE CLT2_RTSEN(1) /*!< RTS enable */
#define USART_RTS_DISABLE CLT2_RTSEN(0) /*!< RTS disable */
/* USART CTS configure */
#define CLT2_CTSEN(regval) (BIT(9) & ((uint32_t)(regval) << 9))
#define USART_CTS_ENABLE CLT2_CTSEN(1) /*!< CTS enable */
#define USART_CTS_DISABLE CLT2_CTSEN(0) /*!< CTS disable */
/* USART IrDA low-power enable */
#define CTL2_IRLP(regval) (BIT(2) & ((uint32_t)(regval) << 2))
#define USART_IRLP_LOW CTL2_IRLP(1) /*!< low-power */
#define USART_IRLP_NORMAL CTL2_IRLP(0) /*!< normal */
/* function declarations */
/* initialization functions */
/* reset USART */
void usart_deinit(uint32_t usart_periph);
/* configure USART baud rate value */
void usart_baudrate_set(uint32_t usart_periph, uint32_t baudval);
/* configure USART parity function */
void usart_parity_config(uint32_t usart_periph, uint32_t paritycfg);
/* configure USART word length */
void usart_word_length_set(uint32_t usart_periph, uint32_t wlen);
/* configure USART stop bit length */
void usart_stop_bit_set(uint32_t usart_periph, uint32_t stblen);
/* USART normal mode communication */
/* enable USART */
void usart_enable(uint32_t usart_periph);
/* disable USART */
void usart_disable(uint32_t usart_periph);
/* configure USART transmitter */
void usart_transmit_config(uint32_t usart_periph, uint32_t txconfig);
/* configure USART receiver */
void usart_receive_config(uint32_t usart_periph, uint32_t rxconfig);
/* USART transmit data function */
void usart_data_transmit(uint32_t usart_periph, uint32_t data);
/* USART receive data function */
uint16_t usart_data_receive(uint32_t usart_periph);
/* multi-processor communication */
/* configure address of the USART */
void usart_address_config(uint32_t usart_periph, uint8_t addr);
/* enable mute mode */
void usart_mute_mode_enable(uint32_t usart_periph);
/* disable mute mode */
void usart_mute_mode_disable(uint32_t usart_periph);
/* configure wakeup method in mute mode */
void usart_mute_mode_wakeup_config(uint32_t usart_periph, uint32_t wmethod);
/* LIN mode communication */
/* LIN mode enable */
void usart_lin_mode_enable(uint32_t usart_periph);
/* LIN mode disable */
void usart_lin_mode_disable(uint32_t usart_periph);
/* LIN break detection length */
void usart_lin_break_detection_length_config(uint32_t usart_periph, uint32_t lblen);
/* send break frame */
void usart_send_break(uint32_t usart_periph);
/* half-duplex communication */
/* half-duplex enable */
void usart_halfduplex_enable(uint32_t usart_periph);
/* half-duplex disable */
void usart_halfduplex_disable(uint32_t usart_periph);
/* synchronous communication */
/* clock enable */
void usart_synchronous_clock_enable(uint32_t usart_periph);
/* clock disable */
void usart_synchronous_clock_disable(uint32_t usart_periph);
/* configure usart synchronous mode parameters */
void usart_synchronous_clock_config(uint32_t usart_periph, uint32_t clen, uint32_t cph, uint32_t cpl);
/* smartcard communication */
/* guard time value configure in smartcard mode */
void usart_guard_time_config(uint32_t usart_periph, uint32_t gaut);
/* smartcard mode enable */
void usart_smartcard_mode_enable(uint32_t usart_periph);
/* smartcard mode disable */
void usart_smartcard_mode_disable(uint32_t usart_periph);
/* NACK enable in smartcard mode */
void usart_smartcard_mode_nack_enable(uint32_t usart_periph);
/* NACK disable in smartcard mode */
void usart_smartcard_mode_nack_disable(uint32_t usart_periph);
/* IrDA communication */
/* enable IrDA mode */
void usart_irda_mode_enable(uint32_t usart_periph);
/* disable IrDA mode */
void usart_irda_mode_disable(uint32_t usart_periph);
/* configure the peripheral clock prescaler */
void usart_prescaler_config(uint32_t usart_periph, uint8_t psc);
/* configure IrDA low-power */
void usart_irda_lowpower_config(uint32_t usart_periph, uint32_t irlp);
/* hardware flow communication */
/* configure hardware flow control RTS */
void usart_hardware_flow_rts_config(uint32_t usart_periph, uint32_t rtsconfig);
/* configure hardware flow control CTS */
void usart_hardware_flow_cts_config(uint32_t usart_periph, uint32_t ctsconfig);
/* configure USART DMA for reception */
void usart_dma_receive_config(uint32_t usart_periph, uint32_t dmacmd);
/* configure USART DMA for transmission */
void usart_dma_transmit_config(uint32_t usart_periph, uint32_t dmacmd);
/* flag functions */
/* get flag in STAT register */
FlagStatus usart_flag_get(uint32_t usart_periph, usart_flag_enum flag);
/* clear flag in STAT register */
void usart_flag_clear(uint32_t usart_periph, usart_flag_enum flag);
/* interrupt functions */
/* enable USART interrupt */
void usart_interrupt_enable(uint32_t usart_periph, uint32_t interrupt);
/* disable USART interrupt */
void usart_interrupt_disable(uint32_t usart_periph, uint32_t interrupt);
/* get USART interrupt and flag status */
FlagStatus usart_interrupt_flag_get(uint32_t usart_periph, uint32_t int_flag);
/* clear interrupt flag in STAT register */
void usart_interrupt_flag_clear(uint32_t usart_periph, uint32_t int_flag);
#endif /* GD32VF103_USART_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Include/gd32vf103_wwdgt.h
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/*!
\file gd32vf103_wwdgt.h
\brief definitions for the WWDGT
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_WWDGT_H
#define GD32VF103_WWDGT_H
#include "gd32vf103.h"
/* WWDGT definitions */
#define WWDGT WWDGT_BASE /*!< WWDGT base address */
/* registers definitions */
#define WWDGT_CTL REG32((WWDGT) + 0x00000000U) /*!< WWDGT control register */
#define WWDGT_CFG REG32((WWDGT) + 0x00000004U) /*!< WWDGT configuration register */
#define WWDGT_STAT REG32((WWDGT) + 0x00000008U) /*!< WWDGT status register */
/* bits definitions */
/* WWDGT_CTL */
#define WWDGT_CTL_CNT BITS(0,6) /*!< WWDGT counter value */
#define WWDGT_CTL_WDGTEN BIT(7) /*!< WWDGT counter enable */
/* WWDGT_CFG */
#define WWDGT_CFG_WIN BITS(0,6) /*!< WWDGT counter window value */
#define WWDGT_CFG_PSC BITS(7,8) /*!< WWDGT prescaler divider value */
#define WWDGT_CFG_EWIE BIT(9) /*!< early wakeup interrupt enable */
/* WWDGT_STAT */
#define WWDGT_STAT_EWIF BIT(0) /*!< early wakeup interrupt flag */
/* constants definitions */
#define CFG_PSC(regval) (BITS(7,8) & ((uint32_t)(regval) << 7)) /*!< write value to WWDGT_CFG_PSC bit field */
#define WWDGT_CFG_PSC_DIV1 CFG_PSC(0) /*!< the time base of WWDGT = (PCLK1/4096)/1 */
#define WWDGT_CFG_PSC_DIV2 CFG_PSC(1) /*!< the time base of WWDGT = (PCLK1/4096)/2 */
#define WWDGT_CFG_PSC_DIV4 CFG_PSC(2) /*!< the time base of WWDGT = (PCLK1/4096)/4 */
#define WWDGT_CFG_PSC_DIV8 CFG_PSC(3) /*!< the time base of WWDGT = (PCLK1/4096)/8 */
/* function declarations */
/* reset the window watchdog timer configuration */
void wwdgt_deinit(void);
/* start the window watchdog timer counter */
void wwdgt_enable(void);
/* configure the window watchdog timer counter value */
void wwdgt_counter_update(uint16_t counter_value);
/* configure counter value, window value, and prescaler divider value */
void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler);
/* enable early wakeup interrupt of WWDGT */
void wwdgt_interrupt_enable(void);
/* check early wakeup interrupt state of WWDGT */
FlagStatus wwdgt_flag_get(void);
/* clear early wakeup interrupt state of WWDGT */
void wwdgt_flag_clear(void);
#endif /* GD32VF103_WWDGT_H */

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_adc.c
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/*!
\file gd32vf103_adc.c
\brief ADC driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_adc.h"
/* discontinuous mode macro*/
#define ADC_CHANNEL_LENGTH_SUBTRACT_ONE ((uint8_t)1U)
/* ADC regular channel macro */
#define ADC_REGULAR_CHANNEL_RANK_SIX ((uint8_t)6U)
#define ADC_REGULAR_CHANNEL_RANK_TWELVE ((uint8_t)12U)
#define ADC_REGULAR_CHANNEL_RANK_SIXTEEN ((uint8_t)16U)
#define ADC_REGULAR_CHANNEL_RANK_LENGTH ((uint8_t)5U)
/* ADC sampling time macro */
#define ADC_CHANNEL_SAMPLE_TEN ((uint8_t)10U)
#define ADC_CHANNEL_SAMPLE_EIGHTEEN ((uint8_t)18U)
#define ADC_CHANNEL_SAMPLE_LENGTH ((uint8_t)3U)
/* ADC inserted channel macro */
#define ADC_INSERTED_CHANNEL_RANK_LENGTH ((uint8_t)5U)
#define ADC_INSERTED_CHANNEL_SHIFT_LENGTH ((uint8_t)15U)
/* ADC inserted channel offset macro */
#define ADC_OFFSET_LENGTH ((uint8_t)3U)
#define ADC_OFFSET_SHIFT_LENGTH ((uint8_t)4U)
/*!
\brief reset ADC
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_deinit(uint32_t adc_periph)
{
switch(adc_periph){
case ADC0:
/* reset ADC0 */
rcu_periph_reset_enable(RCU_ADC0RST);
rcu_periph_reset_disable(RCU_ADC0RST);
break;
case ADC1:
/* reset ADC1 */
rcu_periph_reset_enable(RCU_ADC1RST);
rcu_periph_reset_disable(RCU_ADC1RST);
break;
default:
break;
}
}
/*!
\brief configure the ADC sync mode
\param[in] mode: ADC mode
only one parameter can be selected which is shown as below:
\arg ADC_MODE_FREE: all the ADCs work independently
\arg ADC_DAUL_REGULAL_PARALLEL_INSERTED_PARALLEL: ADC0 and ADC1 work in combined regular parallel + inserted parallel mode
\arg ADC_DAUL_REGULAL_PARALLEL_INSERTED_ROTATION: ADC0 and ADC1 work in combined regular parallel + trigger rotation mode
\arg ADC_DAUL_INSERTED_PARALLEL_REGULAL_FOLLOWUP_FAST: ADC0 and ADC1 work in combined inserted parallel + follow-up fast mode
\arg ADC_DAUL_INSERTED_PARALLEL_REGULAL_FOLLOWUP_SLOW: ADC0 and ADC1 work in combined inserted parallel + follow-up slow mode
\arg ADC_DAUL_INSERTED_PARALLEL: ADC0 and ADC1 work in inserted parallel mode only
\arg ADC_DAUL_REGULAL_PARALLEL: ADC0 and ADC1 work in regular parallel mode only
\arg ADC_DAUL_REGULAL_FOLLOWUP_FAST: ADC0 and ADC1 work in follow-up fast mode only
\arg ADC_DAUL_REGULAL_FOLLOWUP_SLOW: ADC0 and ADC1 work in follow-up slow mode only
\arg ADC_DAUL_INSERTED_TRIGGER_ROTATION: ADC0 and ADC1 work in trigger rotation mode only
\param[out] none
\retval none
*/
void adc_mode_config(uint32_t mode)
{
ADC_CTL0(ADC0) &= ~(ADC_CTL0_SYNCM);
ADC_CTL0(ADC0) |= mode;
}
/*!
\brief enable or disable ADC special function
\param[in] adc_periph: ADCx, x=0,1
\param[in] function: the function to config
only one parameter can be selected which is shown as below:
\arg ADC_SCAN_MODE: scan mode select
\arg ADC_INSERTED_CHANNEL_AUTO: inserted channel group convert automatically
\arg ADC_CONTINUOUS_MODE: continuous mode select
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void adc_special_function_config(uint32_t adc_periph, uint32_t function, ControlStatus newvalue)
{
if(newvalue){
if(0U != (function & ADC_SCAN_MODE)){
/* enable scan mode */
ADC_CTL0(adc_periph) |= ADC_SCAN_MODE;
}
if(0U != (function & ADC_INSERTED_CHANNEL_AUTO)){
/* enable inserted channel group convert automatically */
ADC_CTL0(adc_periph) |= ADC_INSERTED_CHANNEL_AUTO;
}
if(0U != (function & ADC_CONTINUOUS_MODE)){
/* enable continuous mode */
ADC_CTL1(adc_periph) |= ADC_CONTINUOUS_MODE;
}
}else{
if(0U != (function & ADC_SCAN_MODE)){
/* disable scan mode */
ADC_CTL0(adc_periph) &= ~ADC_SCAN_MODE;
}
if(0U != (function & ADC_INSERTED_CHANNEL_AUTO)){
/* disable inserted channel group convert automatically */
ADC_CTL0(adc_periph) &= ~ADC_INSERTED_CHANNEL_AUTO;
}
if(0U != (function & ADC_CONTINUOUS_MODE)){
/* disable continuous mode */
ADC_CTL1(adc_periph) &= ~ADC_CONTINUOUS_MODE;
}
}
}
/*!
\brief configure ADC data alignment
\param[in] adc_periph: ADCx, x=0,1
\param[in] data_alignment: data alignment select
only one parameter can be selected which is shown as below:
\arg ADC_DATAALIGN_RIGHT: LSB alignment
\arg ADC_DATAALIGN_LEFT: MSB alignment
\param[out] none
\retval none
*/
void adc_data_alignment_config(uint32_t adc_periph, uint32_t data_alignment)
{
if(ADC_DATAALIGN_RIGHT != data_alignment){
/* MSB alignment */
ADC_CTL1(adc_periph) |= ADC_CTL1_DAL;
}else{
/* LSB alignment */
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_DAL);
}
}
/*!
\brief enable ADC interface
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_enable(uint32_t adc_periph)
{
if(RESET == (ADC_CTL1(adc_periph) & ADC_CTL1_ADCON)){
/* enable ADC */
ADC_CTL1(adc_periph) |= (uint32_t)ADC_CTL1_ADCON;
}
}
/*!
\brief disable ADC interface
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_disable(uint32_t adc_periph)
{
/* disable ADC */
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_ADCON);
}
/*!
\brief ADC calibration and reset calibration
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_calibration_enable(uint32_t adc_periph)
{
/* reset the selected ADC1 calibration registers */
ADC_CTL1(adc_periph) |= (uint32_t) ADC_CTL1_RSTCLB;
/* check the RSTCLB bit state */
while(RESET != (ADC_CTL1(adc_periph) & ADC_CTL1_RSTCLB)){
}
/* enable ADC calibration process */
ADC_CTL1(adc_periph) |= ADC_CTL1_CLB;
/* check the CLB bit state */
while(RESET != (ADC_CTL1(adc_periph) & ADC_CTL1_CLB)){
}
}
/*!
\brief enable the temperature sensor and Vrefint channel
\param[in] none
\param[out] none
\retval none
*/
void adc_tempsensor_vrefint_enable(void)
{
/* enable the temperature sensor and Vrefint channel */
ADC_CTL1(ADC0) |= ADC_CTL1_TSVREN;
}
/*!
\brief disable the temperature sensor and Vrefint channel
\param[in] none
\param[out] none
\retval none
*/
void adc_tempsensor_vrefint_disable(void)
{
/* disable the temperature sensor and Vrefint channel */
ADC_CTL1(ADC0) &= ~ADC_CTL1_TSVREN;
}
/*!
\brief enable DMA request
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_dma_mode_enable(uint32_t adc_periph)
{
/* enable DMA request */
ADC_CTL1(adc_periph) |= (uint32_t)(ADC_CTL1_DMA);
}
/*!
\brief disable DMA request
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_dma_mode_disable(uint32_t adc_periph)
{
/* disable DMA request */
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_DMA);
}
/*!
\brief configure ADC discontinuous mode
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel_group: select the channel group
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\arg ADC_CHANNEL_DISCON_DISABLE: disable discontinuous mode of regular & inserted channel
\param[in] length: number of conversions in discontinuous mode,the number can be 1..8
for regular channel, the number has no effect for inserted channel
\param[out] none
\retval none
*/
void adc_discontinuous_mode_config(uint32_t adc_periph, uint8_t adc_channel_group, uint8_t length)
{
/* disable discontinuous mode of regular & inserted channel */
ADC_CTL0(adc_periph) &= ~((uint32_t)(ADC_CTL0_DISRC | ADC_CTL0_DISIC));
switch(adc_channel_group){
case ADC_REGULAR_CHANNEL:
/* config the number of conversions in discontinuous mode */
ADC_CTL0(adc_periph) &= ~((uint32_t)ADC_CTL0_DISNUM);
ADC_CTL0(adc_periph) |= CTL0_DISNUM(((uint32_t)length - ADC_CHANNEL_LENGTH_SUBTRACT_ONE));
/* enable regular channel group discontinuous mode */
ADC_CTL0(adc_periph) |= (uint32_t)ADC_CTL0_DISRC;
break;
case ADC_INSERTED_CHANNEL:
/* enable inserted channel group discontinuous mode */
ADC_CTL0(adc_periph) |= (uint32_t)ADC_CTL0_DISIC;
break;
case ADC_CHANNEL_DISCON_DISABLE:
/* disable discontinuous mode of regular & inserted channel */
default:
break;
}
}
/*!
\brief configure the length of regular channel group or inserted channel group
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel_group: select the channel group
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[in] length: the length of the channel
regular channel 1-16
inserted channel 1-4
\param[out] none
\retval none
*/
void adc_channel_length_config(uint32_t adc_periph, uint8_t adc_channel_group, uint32_t length)
{
switch(adc_channel_group){
case ADC_REGULAR_CHANNEL:
/* configure the length of regular channel group */
ADC_RSQ0(adc_periph) &= ~((uint32_t)ADC_RSQ0_RL);
ADC_RSQ0(adc_periph) |= RSQ0_RL((uint32_t)(length-ADC_CHANNEL_LENGTH_SUBTRACT_ONE));
break;
case ADC_INSERTED_CHANNEL:
/* configure the length of inserted channel group */
ADC_ISQ(adc_periph) &= ~((uint32_t)ADC_ISQ_IL);
ADC_ISQ(adc_periph) |= ISQ_IL((uint32_t)(length-ADC_CHANNEL_LENGTH_SUBTRACT_ONE));
break;
default:
break;
}
}
/*!
\brief configure ADC regular channel
\param[in] adc_periph: ADCx, x=0,1
\param[in] rank: the regular group sequence rank,this parameter must be between 0 to 15
\param[in] adc_channel: the selected ADC channel
only one parameter can be selected which is shown as below:
\arg ADC_CHANNEL_x(x=0..17)(x=16 and x=17 are only for ADC0): ADC Channelx
\param[in] sample_time: the sample time value
only one parameter can be selected which is shown as below:
\arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
\arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
\arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
\arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
\arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
\arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
\arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
\arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
\param[out] none
\retval none
*/
void adc_regular_channel_config(uint32_t adc_periph, uint8_t rank, uint8_t adc_channel, uint32_t sample_time)
{
uint32_t rsq,sampt;
/* ADC regular sequence config */
if(rank < ADC_REGULAR_CHANNEL_RANK_SIX){
/* the regular group sequence rank is smaller than six */
rsq = ADC_RSQ2(adc_periph);
rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (ADC_REGULAR_CHANNEL_RANK_LENGTH*rank)));
/* the channel number is written to these bits to select a channel as the nth conversion in the regular channel group */
rsq |= ((uint32_t)adc_channel << (ADC_REGULAR_CHANNEL_RANK_LENGTH*rank));
ADC_RSQ2(adc_periph) = rsq;
}else if(rank < ADC_REGULAR_CHANNEL_RANK_TWELVE){
/* the regular group sequence rank is smaller than twelve */
rsq = ADC_RSQ1(adc_periph);
rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (ADC_REGULAR_CHANNEL_RANK_LENGTH*(rank-ADC_REGULAR_CHANNEL_RANK_SIX))));
/* the channel number is written to these bits to select a channel as the nth conversion in the regular channel group */
rsq |= ((uint32_t)adc_channel << (ADC_REGULAR_CHANNEL_RANK_LENGTH*(rank-ADC_REGULAR_CHANNEL_RANK_SIX)));
ADC_RSQ1(adc_periph) = rsq;
}else if(rank < ADC_REGULAR_CHANNEL_RANK_SIXTEEN){
/* the regular group sequence rank is smaller than sixteen */
rsq = ADC_RSQ0(adc_periph);
rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (ADC_REGULAR_CHANNEL_RANK_LENGTH*(rank-ADC_REGULAR_CHANNEL_RANK_TWELVE))));
/* the channel number is written to these bits to select a channel as the nth conversion in the regular channel group */
rsq |= ((uint32_t)adc_channel << (ADC_REGULAR_CHANNEL_RANK_LENGTH*(rank-ADC_REGULAR_CHANNEL_RANK_TWELVE)));
ADC_RSQ0(adc_periph) = rsq;
}else{
}
/* ADC sampling time config */
if(adc_channel < ADC_CHANNEL_SAMPLE_TEN){
/* the regular group sequence rank is smaller than ten */
sampt = ADC_SAMPT1(adc_periph);
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (ADC_CHANNEL_SAMPLE_LENGTH*adc_channel)));
/* channel sample time set*/
sampt |= (uint32_t)(sample_time << (ADC_CHANNEL_SAMPLE_LENGTH*adc_channel));
ADC_SAMPT1(adc_periph) = sampt;
}else if(adc_channel < ADC_CHANNEL_SAMPLE_EIGHTEEN){
/* the regular group sequence rank is smaller than eighteen */
sampt = ADC_SAMPT0(adc_periph);
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (ADC_CHANNEL_SAMPLE_LENGTH*(adc_channel-ADC_CHANNEL_SAMPLE_TEN))));
/* channel sample time set*/
sampt |= (uint32_t)(sample_time << (ADC_CHANNEL_SAMPLE_LENGTH*(adc_channel-ADC_CHANNEL_SAMPLE_TEN)));
ADC_SAMPT0(adc_periph) = sampt;
}else{
}
}
/*!
\brief configure ADC inserted channel
\param[in] adc_periph: ADCx, x=0,1
\param[in] rank: the inserted group sequencer rank,this parameter must be between 0 to 3
\param[in] adc_channel: the selected ADC channel
only one parameter can be selected which is shown as below:
\arg ADC_CHANNEL_x(x=0..17)(x=16 and x=17 are only for ADC0): ADC Channelx
\param[in] sample_time: The sample time value
only one parameter can be selected which is shown as below:
\arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
\arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
\arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
\arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
\arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
\arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
\arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
\arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
\param[out] none
\retval none
*/
void adc_inserted_channel_config(uint32_t adc_periph, uint8_t rank, uint8_t adc_channel, uint32_t sample_time)
{
uint8_t inserted_length;
uint32_t isq,sampt;
/* get inserted channel group length */
inserted_length = (uint8_t)GET_BITS(ADC_ISQ(adc_periph) , 20U , 21U);
/* the channel number is written to these bits to select a channel as the nth conversion in the inserted channel group */
isq = ADC_ISQ(adc_periph);
isq &= ~((uint32_t)(ADC_ISQ_ISQN << (ADC_INSERTED_CHANNEL_SHIFT_LENGTH-(inserted_length-rank)*ADC_INSERTED_CHANNEL_RANK_LENGTH)));
isq |= ((uint32_t)adc_channel << (ADC_INSERTED_CHANNEL_SHIFT_LENGTH-(inserted_length-rank)*ADC_INSERTED_CHANNEL_RANK_LENGTH));
ADC_ISQ(adc_periph) = isq;
/* ADC sampling time config */
if(adc_channel < ADC_CHANNEL_SAMPLE_TEN){
/* the inserted group sequence rank is smaller than ten */
sampt = ADC_SAMPT1(adc_periph);
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (ADC_CHANNEL_SAMPLE_LENGTH*adc_channel)));
/* channel sample time set*/
sampt |= (uint32_t) sample_time << (ADC_CHANNEL_SAMPLE_LENGTH*adc_channel);
ADC_SAMPT1(adc_periph) = sampt;
}else if(adc_channel < ADC_CHANNEL_SAMPLE_EIGHTEEN){
/* the inserted group sequence rank is smaller than eighteen */
sampt = ADC_SAMPT0(adc_periph);
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (ADC_CHANNEL_SAMPLE_LENGTH*(adc_channel-ADC_CHANNEL_SAMPLE_TEN))));
/* channel sample time set*/
sampt |= ((uint32_t)sample_time << (ADC_CHANNEL_SAMPLE_LENGTH*(adc_channel-ADC_CHANNEL_SAMPLE_TEN)));
ADC_SAMPT0(adc_periph) = sampt;
}else{
}
}
/*!
\brief configure ADC inserted channel offset
\param[in] adc_periph: ADCx, x=0,1
\param[in] inserted_channel: insert channel select
only one parameter can be selected
\arg ADC_INSERTED_CHANNEL_0: inserted channel0
\arg ADC_INSERTED_CHANNEL_1: inserted channel1
\arg ADC_INSERTED_CHANNEL_2: inserted channel2
\arg ADC_INSERTED_CHANNEL_3: inserted channel3
\param[in] offset: the offset data
\param[out] none
\retval none
*/
void adc_inserted_channel_offset_config(uint32_t adc_periph, uint8_t inserted_channel, uint16_t offset)
{
uint8_t inserted_length;
uint32_t num = 0U;
inserted_length = (uint8_t)GET_BITS(ADC_ISQ(adc_periph) , 20U , 21U);
num = ((uint32_t)ADC_OFFSET_LENGTH - ((uint32_t)inserted_length - (uint32_t)inserted_channel));
if(num <= ADC_OFFSET_LENGTH){
/* calculate the offset of the register */
num = num * ADC_OFFSET_SHIFT_LENGTH;
/* config the offset of the selected channels */
REG32((adc_periph) + 0x14U + num) = IOFFX_IOFF((uint32_t)offset);
}
}
/*!
\brief configure ADC external trigger source
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel_group: select the channel group
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[in] external_trigger_source: regular or inserted group trigger source
only one parameter can be selected
for regular channel:
\arg ADC0_1_EXTTRIG_REGULAR_T0_CH0: TIMER0 CH0 event select
\arg ADC0_1_EXTTRIG_REGULAR_T0_CH1: TIMER0 CH1 event select
\arg ADC0_1_EXTTRIG_REGULAR_T0_CH2: TIMER0 CH2 event select
\arg ADC0_1_EXTTRIG_REGULAR_T1_CH1: TIMER1 CH1 event select
\arg ADC0_1_EXTTRIG_REGULAR_T2_TRGO: TIMER2 TRGO event select
\arg ADC0_1_EXTTRIG_REGULAR_T3_CH3: TIMER3 CH3 event select
\arg ADC0_1_EXTTRIG_REGULAR_EXTI_11: external interrupt line 11
\arg ADC0_1_EXTTRIG_REGULAR_NONE: software trigger
for inserted channel:
\arg ADC0_1_EXTTRIG_INSERTED_T0_TRGO: TIMER0 TRGO event select
\arg ADC0_1_EXTTRIG_INSERTED_T0_CH3: TIMER0 CH3 event select
\arg ADC0_1_EXTTRIG_INSERTED_T1_TRGO: TIMER1 TRGO event select
\arg ADC0_1_EXTTRIG_INSERTED_T1_CH0: TIMER1 CH0 event select
\arg ADC0_1_EXTTRIG_INSERTED_T2_CH3: TIMER2 CH3 event select
\arg ADC0_1_EXTTRIG_INSERTED_T3_TRGO: TIMER3 TRGO event select
\arg ADC0_1_EXTTRIG_INSERTED_EXTI_15: external interrupt line 15
\arg ADC0_1_EXTTRIG_INSERTED_NONE: software trigger
\param[out] none
\retval none
*/
void adc_external_trigger_source_config(uint32_t adc_periph, uint8_t adc_channel_group, uint32_t external_trigger_source)
{
switch(adc_channel_group){
case ADC_REGULAR_CHANNEL:
/* configure ADC regular group external trigger source */
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_ETSRC);
ADC_CTL1(adc_periph) |= (uint32_t)external_trigger_source;
break;
case ADC_INSERTED_CHANNEL:
/* configure ADC inserted group external trigger source */
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_ETSIC);
ADC_CTL1(adc_periph) |= (uint32_t)external_trigger_source;
break;
default:
break;
}
}
/*!
\brief configure ADC external trigger
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel_group: select the channel group
one or more parameters can be selected which are shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void adc_external_trigger_config(uint32_t adc_periph, uint8_t adc_channel_group, ControlStatus newvalue)
{
if(newvalue){
if(0U != (adc_channel_group & ADC_REGULAR_CHANNEL)){
/* enable ADC regular channel group external trigger */
ADC_CTL1(adc_periph) |= ADC_CTL1_ETERC;
}
if(0U != (adc_channel_group & ADC_INSERTED_CHANNEL)){
/* enable ADC inserted channel group external trigger */
ADC_CTL1(adc_periph) |= ADC_CTL1_ETEIC;
}
}else{
if(0U != (adc_channel_group & ADC_REGULAR_CHANNEL)){
/* disable ADC regular channel group external trigger */
ADC_CTL1(adc_periph) &= ~ADC_CTL1_ETERC;
}
if(0U != (adc_channel_group & ADC_INSERTED_CHANNEL)){
/* disable ADC regular channel group external trigger */
ADC_CTL1(adc_periph) &= ~ADC_CTL1_ETEIC;
}
}
}
/*!
\brief enable ADC software trigger
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel_group: select the channel group
one or more parameters can be selected which are shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[out] none
\retval none
*/
void adc_software_trigger_enable(uint32_t adc_periph, uint8_t adc_channel_group)
{
if(0U != (adc_channel_group & ADC_REGULAR_CHANNEL)){
/* enable ADC regular channel group software trigger */
ADC_CTL1(adc_periph) |= ADC_CTL1_SWRCST;
}
if(0U != (adc_channel_group & ADC_INSERTED_CHANNEL)){
/* enable ADC inserted channel group software trigger */
ADC_CTL1(adc_periph) |= ADC_CTL1_SWICST;
}
}
/*!
\brief read ADC regular group data register
\param[in] adc_periph: ADCx, x=0,1
\param[in] none
\param[out] none
\retval the conversion value
*/
uint16_t adc_regular_data_read(uint32_t adc_periph)
{
return (uint16_t)(ADC_RDATA(adc_periph));
}
/*!
\brief read ADC inserted group data register
\param[in] adc_periph: ADCx, x=0,1
\param[in] inserted_channel: insert channel select
only one parameter can be selected
\arg ADC_INSERTED_CHANNEL_0: inserted Channel0
\arg ADC_INSERTED_CHANNEL_1: inserted channel1
\arg ADC_INSERTED_CHANNEL_2: inserted Channel2
\arg ADC_INSERTED_CHANNEL_3: inserted Channel3
\param[out] none
\retval the conversion value
*/
uint16_t adc_inserted_data_read(uint32_t adc_periph, uint8_t inserted_channel)
{
uint32_t idata;
/* read the data of the selected channel */
switch(inserted_channel){
case ADC_INSERTED_CHANNEL_0:
/* read the data of channel 0 */
idata = ADC_IDATA0(adc_periph);
break;
case ADC_INSERTED_CHANNEL_1:
/* read the data of channel 1 */
idata = ADC_IDATA1(adc_periph);
break;
case ADC_INSERTED_CHANNEL_2:
/* read the data of channel 2 */
idata = ADC_IDATA2(adc_periph);
break;
case ADC_INSERTED_CHANNEL_3:
/* read the data of channel 3 */
idata = ADC_IDATA3(adc_periph);
break;
default:
idata = 0U;
break;
}
return (uint16_t)idata;
}
/*!
\brief read the last ADC0 and ADC1 conversion result data in sync mode
\param[in] none
\param[out] none
\retval the conversion value
*/
uint32_t adc_sync_mode_convert_value_read(void)
{
/* return conversion value */
return ADC_RDATA(ADC0);
}
/*!
\brief configure ADC analog watchdog single channel
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel: the selected ADC channel
only one parameter can be selected which is shown as below:
\arg ADC_CHANNEL_x: ADC Channelx(x=0..17)(x=16 and x=17 are only for ADC0)
\param[out] none
\retval none
*/
void adc_watchdog_single_channel_enable(uint32_t adc_periph, uint8_t adc_channel)
{
ADC_CTL0(adc_periph) &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
/* analog watchdog channel select */
ADC_CTL0(adc_periph) |= (uint32_t)adc_channel;
ADC_CTL0(adc_periph) |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
}
/*!
\brief configure ADC analog watchdog group channel
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_channel_group: the channel group use analog watchdog
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\arg ADC_REGULAR_INSERTED_CHANNEL: both regular and inserted group
\param[out] none
\retval none
*/
void adc_watchdog_group_channel_enable(uint32_t adc_periph, uint8_t adc_channel_group)
{
ADC_CTL0(adc_periph) &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
/* select the group */
switch(adc_channel_group){
case ADC_REGULAR_CHANNEL:
/* regular channel analog watchdog enable */
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_RWDEN;
break;
case ADC_INSERTED_CHANNEL:
/* inserted channel analog watchdog enable */
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_IWDEN;
break;
case ADC_REGULAR_INSERTED_CHANNEL:
/* regular and inserted channel analog watchdog enable */
ADC_CTL0(adc_periph) |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN);
break;
default:
break;
}
}
/*!
\brief disable ADC analog watchdog
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_watchdog_disable(uint32_t adc_periph)
{
ADC_CTL0(adc_periph) &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
}
/*!
\brief configure ADC analog watchdog threshold
\param[in] adc_periph: ADCx, x=0,1
\param[in] low_threshold: analog watchdog low threshold, 0..4095
\param[in] high_threshold: analog watchdog high threshold, 0..4095
\param[out] none
\retval none
*/
void adc_watchdog_threshold_config(uint32_t adc_periph, uint16_t low_threshold, uint16_t high_threshold)
{
ADC_WDLT(adc_periph) = (uint32_t)WDLT_WDLT(low_threshold);
ADC_WDHT(adc_periph) = (uint32_t)WDHT_WDHT(high_threshold);
}
/*!
\brief get the ADC flag bits
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_flag: the adc flag bits
only one parameter can be selected which is shown as below:
\arg ADC_FLAG_WDE: analog watchdog event flag
\arg ADC_FLAG_EOC: end of group conversion flag
\arg ADC_FLAG_EOIC: end of inserted group conversion flag
\arg ADC_FLAG_STIC: start flag of inserted channel group
\arg ADC_FLAG_STRC: start flag of regular channel group
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus adc_flag_get(uint32_t adc_periph, uint32_t adc_flag)
{
FlagStatus reval = RESET;
if(ADC_STAT(adc_periph) & adc_flag){
reval = SET;
}
return reval;
}
/*!
\brief clear the ADC flag bits
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_flag: the adc flag bits
one or more parameters can be selected which are shown as below:
\arg ADC_FLAG_WDE: analog watchdog event flag
\arg ADC_FLAG_EOC: end of group conversion flag
\arg ADC_FLAG_EOIC: end of inserted group conversion flag
\arg ADC_FLAG_STIC: start flag of inserted channel group
\arg ADC_FLAG_STRC: start flag of regular channel group
\param[out] none
\retval none
*/
void adc_flag_clear(uint32_t adc_periph, uint32_t adc_flag)
{
ADC_STAT(adc_periph) &= ~((uint32_t)adc_flag);
}
/*!
\brief get the bit state of ADCx software start conversion
\param[in] adc_periph: ADCx, x=0,1
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus adc_regular_software_startconv_flag_get(uint32_t adc_periph)
{
FlagStatus reval = RESET;
if((uint32_t)RESET != (ADC_CTL1(adc_periph) & ADC_CTL1_SWRCST)){
reval = SET;
}
return reval;
}
/*!
\brief get the bit state of ADCx software inserted channel start conversion
\param[in] adc_periph: ADCx, x=0,1
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus adc_inserted_software_startconv_flag_get(uint32_t adc_periph)
{
FlagStatus reval = RESET;
if((uint32_t)RESET != (ADC_CTL1(adc_periph) & ADC_CTL1_SWICST)){
reval = SET;
}
return reval;
}
/*!
\brief get the ADC interrupt bits
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_interrupt: the adc interrupt bits
only one parameter can be selected which is shown as below:
\arg ADC_INT_FLAG_WDE: analog watchdog interrupt
\arg ADC_INT_FLAG_EOC: end of group conversion interrupt
\arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus adc_interrupt_flag_get(uint32_t adc_periph, uint32_t adc_interrupt)
{
FlagStatus interrupt_flag = RESET;
uint32_t state;
/* check the interrupt bits */
switch(adc_interrupt){
case ADC_INT_FLAG_WDE:
/* get the ADC analog watchdog interrupt bits */
state = ADC_STAT(adc_periph) & ADC_STAT_WDE;
if((ADC_CTL0(adc_periph) & ADC_CTL0_WDEIE) && state){
interrupt_flag = SET;
}
break;
case ADC_INT_FLAG_EOC:
/* get the ADC end of group conversion interrupt bits */
state = ADC_STAT(adc_periph) & ADC_STAT_EOC;
if((ADC_CTL0(adc_periph) & ADC_CTL0_EOCIE) && state){
interrupt_flag = SET;
}
break;
case ADC_INT_FLAG_EOIC:
/* get the ADC end of inserted group conversion interrupt bits */
state = ADC_STAT(adc_periph) & ADC_STAT_EOIC;
if((ADC_CTL0(adc_periph) & ADC_CTL0_EOICIE) && state){
interrupt_flag = SET;
}
break;
default:
break;
}
return interrupt_flag;
}
/*!
\brief clear the ADC flag
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_interrupt: the adc status flag
one or more parameters can be selected which are shown as below:
\arg ADC_INT_FLAG_WDE: analog watchdog interrupt
\arg ADC_INT_FLAG_EOC: end of group conversion interrupt
\arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt
\param[out] none
\retval none
*/
void adc_interrupt_flag_clear(uint32_t adc_periph, uint32_t adc_interrupt)
{
ADC_STAT(adc_periph) &= ~((uint32_t)adc_interrupt);
}
/*!
\brief enable ADC interrupt
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_interrupt: the adc interrupt
one or more parameters can be selected which are shown as below:
\arg ADC_INT_WDE: analog watchdog interrupt flag
\arg ADC_INT_EOC: end of group conversion interrupt flag
\arg ADC_INT_EOIC: end of inserted group conversion interrupt flag
\param[out] none
\retval none
*/
void adc_interrupt_enable(uint32_t adc_periph, uint32_t adc_interrupt)
{
/* enable ADC analog watchdog interrupt */
if(0U != (adc_interrupt & ADC_INT_WDE)){
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_WDEIE;
}
/* enable ADC end of group conversion interrupt */
if(0U != (adc_interrupt & ADC_INT_EOC)){
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_EOCIE;
}
/* enable ADC end of inserted group conversion interrupt */
if(0U != (adc_interrupt & ADC_INT_EOIC)){
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_EOICIE;
}
}
/*!
\brief disable ADC interrupt
\param[in] adc_periph: ADCx, x=0,1
\param[in] adc_interrupt: the adc interrupt flag
one or more parameters can be selected which are shown as below:
\arg ADC_INT_WDE: analog watchdog interrupt flag
\arg ADC_INT_EOC: end of group conversion interrupt flag
\arg ADC_INT_EOIC: end of inserted group conversion interrupt flag
\param[out] none
\retval none
*/
void adc_interrupt_disable(uint32_t adc_periph, uint32_t adc_interrupt)
{
/* disable ADC analog watchdog interrupt */
if(0U != (adc_interrupt & ADC_INT_WDE)){
ADC_CTL0(adc_periph) &= ~(uint32_t) ADC_CTL0_WDEIE;
}
/* disable ADC end of group conversion interrupt */
if(0U != (adc_interrupt & ADC_INT_EOC)){
ADC_CTL0(adc_periph) &= ~(uint32_t) ADC_CTL0_EOCIE;
}
/* disable ADC end of inserted group conversion interrupt */
if(0U != (adc_interrupt & ADC_INT_EOIC)){
ADC_CTL0(adc_periph) &= ~(uint32_t) ADC_CTL0_EOICIE;
}
}
/*!
\brief adc resolution config
\param[in] adc_periph: ADCx, x=0,1
\param[in] resolution: ADC resolution
only one parameter can be selected which is shown as below:
\arg ADC_RESOLUTION_12B: 12-bit ADC resolution
\arg ADC_RESOLUTION_10B: 10-bit ADC resolution
\arg ADC_RESOLUTION_8B: 8-bit ADC resolution
\arg ADC_RESOLUTION_6B: 6-bit ADC resolution
\param[out] none
\retval none
*/
void adc_resolution_config(uint32_t adc_periph, uint32_t resolution)
{
ADC_OVSCR(adc_periph) &= ~((uint32_t)ADC_OVSCR_DRES);
ADC_OVSCR(adc_periph) |= (uint32_t)resolution;
}
/*!
\brief adc oversample mode config
\param[in] adc_periph: ADCx, x=0,1
\param[in] mode: ADC oversampling mode
only one parameter can be selected which is shown as below:
\arg ADC_OVERSAMPLING_ALL_CONVERT: all oversampled conversions for a channel
are done consecutively after a trigger
\arg ADC_OVERSAMPLING_ONE_CONVERT: each oversampled conversion for a channel
needs a trigger
\param[in] shift: ADC oversampling shift
only one parameter can be selected which is shown as below:
\arg ADC_OVERSAMPLING_SHIFT_NONE: no oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_1B: 1-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_2B: 2-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_3B: 3-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_4B: 3-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_5B: 5-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_6B: 6-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_7B: 7-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_8B: 8-bit oversampling shift
\param[in] ratio: ADC oversampling ratio
only one parameter can be selected which is shown as below:
\arg ADC_OVERSAMPLING_RATIO_MUL2: oversampling ratio X2
\arg ADC_OVERSAMPLING_RATIO_MUL4: oversampling ratio X4
\arg ADC_OVERSAMPLING_RATIO_MUL8: oversampling ratio X8
\arg ADC_OVERSAMPLING_RATIO_MUL16: oversampling ratio X16
\arg ADC_OVERSAMPLING_RATIO_MUL32: oversampling ratio X32
\arg ADC_OVERSAMPLING_RATIO_MUL64: oversampling ratio X64
\arg ADC_OVERSAMPLING_RATIO_MUL128: oversampling ratio X128
\arg ADC_OVERSAMPLING_RATIO_MUL256: oversampling ratio X256
\param[out] none
\retval none
*/
void adc_oversample_mode_config(uint32_t adc_periph, uint8_t mode, uint16_t shift,uint8_t ratio)
{
if(mode){
ADC_OVSCR(adc_periph) |= (uint32_t)ADC_OVSCR_TOVS;
}else{
ADC_OVSCR(adc_periph) &= ~((uint32_t)ADC_OVSCR_TOVS);
}
/* config the shift and ratio */
ADC_OVSCR(adc_periph) &= ~((uint32_t)(ADC_OVSCR_OVSR | ADC_OVSCR_OVSS));
ADC_OVSCR(adc_periph) |= ((uint32_t)shift | (uint32_t)ratio);
}
/*!
\brief enable ADC oversample mode
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_oversample_mode_enable(uint32_t adc_periph)
{
ADC_OVSCR(adc_periph) |= ADC_OVSCR_OVSEN;
}
/*!
\brief disable ADC oversample mode
\param[in] adc_periph: ADCx, x=0,1
\param[out] none
\retval none
*/
void adc_oversample_mode_disable(uint32_t adc_periph)
{
ADC_OVSCR(adc_periph) &= ~((uint32_t)ADC_OVSCR_OVSEN);
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_bkp.c
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/*!
\file gd32vf103_bkp.c
\brief BKP driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_bkp.h"
/* BKP register bits offset */
#define BKP_TAMPER_BITS_OFFSET ((uint32_t)8U)
/*!
\brief reset BKP registers
\param[in] none
\param[out] none
\retval none
*/
void bkp_deinit(void)
{
/* reset BKP domain register*/
rcu_bkp_reset_enable();
rcu_bkp_reset_disable();
}
/*!
\brief write BKP data register
\param[in] register_number: refer to bkp_data_register_enum
only one parameter can be selected which is shown as below:
\arg BKP_DATA_x(x = 0..41): bkp data register number x
\param[in] data: the data to be write in BKP data register
\param[out] none
\retval none
*/
void bkp_data_write(bkp_data_register_enum register_number, uint16_t data)
{
if((register_number >= BKP_DATA_10) && (register_number <= BKP_DATA_41)){
BKP_DATA10_41(register_number - 1U) = data;
}else if((register_number >= BKP_DATA_0) && (register_number <= BKP_DATA_9)){
BKP_DATA0_9(register_number - 1U) = data;
}else{
/* illegal parameters */
}
}
/*!
\brief read BKP data register
\param[in] register_number: refer to bkp_data_register_enum
only one parameter can be selected which is shown as below:
\arg BKP_DATA_x(x = 0..41): bkp data register number x
\param[out] none
\retval data of BKP data register
*/
uint16_t bkp_data_read(bkp_data_register_enum register_number)
{
uint16_t data = 0U;
/* get the data from the BKP data register */
if((register_number >= BKP_DATA_10) && (register_number <= BKP_DATA_41)){
data = BKP_DATA10_41(register_number - 1U);
}else if((register_number >= BKP_DATA_0) && (register_number <= BKP_DATA_9)){
data = BKP_DATA0_9(register_number - 1U);
}else{
/* illegal parameters */
}
return data;
}
/*!
\brief enable RTC clock calibration output
\param[in] none
\param[out] none
\retval none
*/
void bkp_rtc_calibration_output_enable(void)
{
BKP_OCTL |= (uint16_t)BKP_OCTL_COEN;
}
/*!
\brief disable RTC clock calibration output
\param[in] none
\param[out] none
\retval none
*/
void bkp_rtc_calibration_output_disable(void)
{
BKP_OCTL &= (uint16_t)~BKP_OCTL_COEN;
}
/*!
\brief enable RTC alarm or second signal output
\param[in] none
\param[out] none
\retval none
*/
void bkp_rtc_signal_output_enable(void)
{
BKP_OCTL |= (uint16_t)BKP_OCTL_ASOEN;
}
/*!
\brief disable RTC alarm or second signal output
\param[in] none
\param[out] none
\retval none
*/
void bkp_rtc_signal_output_disable(void)
{
BKP_OCTL &= (uint16_t)~BKP_OCTL_ASOEN;
}
/*!
\brief select RTC output
\param[in] outputsel: RTC output selection
only one parameter can be selected which is shown as below:
\arg RTC_OUTPUT_ALARM_PULSE: RTC alarm pulse is selected as the RTC output
\arg RTC_OUTPUT_SECOND_PULSE: RTC second pulse is selected as the RTC output
\param[out] none
\retval none
*/
void bkp_rtc_output_select(uint16_t outputsel)
{
uint16_t ctl = 0U;
/* configure BKP_OCTL_ROSEL with outputsel */
ctl = BKP_OCTL;
ctl &= (uint16_t)~BKP_OCTL_ROSEL;
ctl |= outputsel;
BKP_OCTL = ctl;
}
/*!
\brief set RTC clock calibration value
\param[in] value: RTC clock calibration value
\arg 0x00 - 0x7F
\param[out] none
\retval none
*/
void bkp_rtc_calibration_value_set(uint8_t value)
{
uint16_t ctl;
/* configure BKP_OCTL_RCCV with value */
ctl = BKP_OCTL;
ctl &= (uint16_t)~BKP_OCTL_RCCV;
ctl |= (uint16_t)OCTL_RCCV(value);
BKP_OCTL = ctl;
}
/*!
\brief enable tamper detection
\param[in] none
\param[out] none
\retval none
*/
void bkp_tamper_detection_enable(void)
{
BKP_TPCTL |= (uint16_t)BKP_TPCTL_TPEN;
}
/*!
\brief disable tamper detection
\param[in] none
\param[out] none
\retval none
*/
void bkp_tamper_detection_disable(void)
{
BKP_TPCTL &= (uint16_t)~BKP_TPCTL_TPEN;
}
/*!
\brief set tamper pin active level
\param[in] level: tamper active level
only one parameter can be selected which is shown as below:
\arg TAMPER_PIN_ACTIVE_HIGH: the tamper pin is active high
\arg TAMPER_PIN_ACTIVE_LOW: the tamper pin is active low
\param[out] none
\retval none
*/
void bkp_tamper_active_level_set(uint16_t level)
{
uint16_t ctl = 0U;
/* configure BKP_TPCTL_TPAL with level */
ctl = BKP_TPCTL;
ctl &= (uint16_t)~BKP_TPCTL_TPAL;
ctl |= level;
BKP_TPCTL = ctl;
}
/*!
\brief enable tamper interrupt
\param[in] none
\param[out] none
\retval none
*/
void bkp_interrupt_enable(void)
{
BKP_TPCS |= (uint16_t)BKP_TPCS_TPIE;
}
/*!
\brief disable tamper interrupt
\param[in] none
\param[out] none
\retval none
*/
void bkp_interrupt_disable(void)
{
BKP_TPCS &= (uint16_t)~BKP_TPCS_TPIE;
}
/*!
\brief get tamper flag state
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus bkp_flag_get(void)
{
if(RESET != (BKP_TPCS & BKP_FLAG_TAMPER)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear tamper flag state
\param[in] none
\param[out] none
\retval none
*/
void bkp_flag_clear(void)
{
BKP_TPCS |= (uint16_t)(BKP_FLAG_TAMPER >> BKP_TAMPER_BITS_OFFSET);
}
/*!
\brief get tamper interrupt flag state
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus bkp_interrupt_flag_get(void)
{
if(RESET != (BKP_TPCS & BKP_INT_FLAG_TAMPER)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear tamper interrupt flag state
\param[in] none
\param[out] none
\retval none
*/
void bkp_interrupt_flag_clear(void)
{
BKP_TPCS |= (uint16_t)(BKP_INT_FLAG_TAMPER >> BKP_TAMPER_BITS_OFFSET);
}

1015
RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_can.c
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/*!
\file gd32vf103_can.c
\brief CAN driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-11-27, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_can.h"
#define CAN_ERROR_HANDLE(s) do{}while(1)
/*!
\brief deinitialize CAN
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval none
*/
void can_deinit(uint32_t can_periph)
{
if(CAN0 == can_periph){
rcu_periph_reset_enable(RCU_CAN0RST);
rcu_periph_reset_disable(RCU_CAN0RST);
}else{
rcu_periph_reset_enable(RCU_CAN1RST);
rcu_periph_reset_disable(RCU_CAN1RST);
}
}
/*!
\brief initialize CAN parameter struct with a default value
\param[in] type: the type of CAN parameter struct
only one parameter can be selected which is shown as below:
\arg CAN_INIT_STRUCT: the CAN initial struct
\arg CAN_FILTER_STRUCT: the CAN filter struct
\arg CAN_TX_MESSAGE_STRUCT: the CAN TX message struct
\arg CAN_RX_MESSAGE_STRUCT: the CAN RX message struct
\param[in] p_struct: the pointer of the specific struct
\param[out] none
\retval none
*/
void can_struct_para_init(can_struct_type_enum type, void* p_struct)
{
uint8_t i;
/* get type of the struct */
switch(type){
/* used for can_init() */
case CAN_INIT_STRUCT:
((can_parameter_struct*)p_struct)->auto_bus_off_recovery = DISABLE;
((can_parameter_struct*)p_struct)->no_auto_retrans = DISABLE;
((can_parameter_struct*)p_struct)->auto_wake_up = DISABLE;
((can_parameter_struct*)p_struct)->prescaler = 0x03FFU;
((can_parameter_struct*)p_struct)->rec_fifo_overwrite = DISABLE;
((can_parameter_struct*)p_struct)->resync_jump_width = CAN_BT_SJW_1TQ;
((can_parameter_struct*)p_struct)->time_segment_1 = CAN_BT_BS1_3TQ;
((can_parameter_struct*)p_struct)->time_segment_2 = CAN_BT_BS2_1TQ;
((can_parameter_struct*)p_struct)->time_triggered = DISABLE;
((can_parameter_struct*)p_struct)->trans_fifo_order = DISABLE;
((can_parameter_struct*)p_struct)->working_mode = CAN_NORMAL_MODE;
break;
/* used for can_filter_init() */
case CAN_FILTER_STRUCT:
((can_filter_parameter_struct*)p_struct)->filter_bits = CAN_FILTERBITS_32BIT;
((can_filter_parameter_struct*)p_struct)->filter_enable = DISABLE;
((can_filter_parameter_struct*)p_struct)->filter_fifo_number = CAN_FIFO0;
((can_filter_parameter_struct*)p_struct)->filter_list_high = 0x0000U;
((can_filter_parameter_struct*)p_struct)->filter_list_low = 0x0000U;
((can_filter_parameter_struct*)p_struct)->filter_mask_high = 0x0000U;
((can_filter_parameter_struct*)p_struct)->filter_mask_low = 0x0000U;
((can_filter_parameter_struct*)p_struct)->filter_mode = CAN_FILTERMODE_MASK;
((can_filter_parameter_struct*)p_struct)->filter_number = 0U;
break;
/* used for can_message_transmit() */
case CAN_TX_MESSAGE_STRUCT:
for(i = 0U; i < 8U; i++){
((can_trasnmit_message_struct*)p_struct)->tx_data[i] = 0U;
}
((can_trasnmit_message_struct*)p_struct)->tx_dlen = 0u;
((can_trasnmit_message_struct*)p_struct)->tx_efid = 0U;
((can_trasnmit_message_struct*)p_struct)->tx_ff = (uint8_t)CAN_FF_STANDARD;
((can_trasnmit_message_struct*)p_struct)->tx_ft = (uint8_t)CAN_FT_DATA;
((can_trasnmit_message_struct*)p_struct)->tx_sfid = 0U;
break;
/* used for can_message_receive() */
case CAN_RX_MESSAGE_STRUCT:
for(i = 0U; i < 8U; i++){
((can_receive_message_struct*)p_struct)->rx_data[i] = 0U;
}
((can_receive_message_struct*)p_struct)->rx_dlen = 0U;
((can_receive_message_struct*)p_struct)->rx_efid = 0U;
((can_receive_message_struct*)p_struct)->rx_ff = (uint8_t)CAN_FF_STANDARD;
((can_receive_message_struct*)p_struct)->rx_fi = 0U;
((can_receive_message_struct*)p_struct)->rx_ft = (uint8_t)CAN_FT_DATA;
((can_receive_message_struct*)p_struct)->rx_sfid = 0U;
break;
default:
CAN_ERROR_HANDLE("parameter is invalid \r\n");
}
}
/*!
\brief initialize CAN
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] can_parameter_init: parameters for CAN initializtion
\arg working_mode: CAN_NORMAL_MODE, CAN_LOOPBACK_MODE, CAN_SILENT_MODE, CAN_SILENT_LOOPBACK_MODE
\arg resync_jump_width: CAN_BT_SJW_xTQ(x=1, 2, 3, 4)
\arg time_segment_1: CAN_BT_BS1_xTQ(1..16)
\arg time_segment_2: CAN_BT_BS2_xTQ(1..8)
\arg time_triggered: ENABLE or DISABLE
\arg auto_bus_off_recovery: ENABLE or DISABLE
\arg auto_wake_up: ENABLE or DISABLE
\arg no_auto_retrans: ENABLE or DISABLE
\arg rec_fifo_overwrite: ENABLE or DISABLE
\arg trans_fifo_order: ENABLE or DISABLE
\arg prescaler: 0x0001 - 0x0400
\param[out] none
\retval ErrStatus: SUCCESS or ERROR
*/
ErrStatus can_init(uint32_t can_periph, can_parameter_struct* can_parameter_init)
{
uint32_t timeout = CAN_TIMEOUT;
ErrStatus flag = ERROR;
/* disable sleep mode */
CAN_CTL(can_periph) &= ~CAN_CTL_SLPWMOD;
/* enable initialize mode */
CAN_CTL(can_periph) |= CAN_CTL_IWMOD;
/* wait ACK */
while((CAN_STAT_IWS != (CAN_STAT(can_periph) & CAN_STAT_IWS)) && (0U != timeout)){
timeout--;
}
/* check initialize working success */
if(CAN_STAT_IWS != (CAN_STAT(can_periph) & CAN_STAT_IWS)){
flag = ERROR;
}else{
/* set the bit timing register */
CAN_BT(can_periph) = (BT_MODE((uint32_t)can_parameter_init->working_mode) | \
BT_SJW((uint32_t)can_parameter_init->resync_jump_width) | \
BT_BS1((uint32_t)can_parameter_init->time_segment_1) | \
BT_BS2((uint32_t)can_parameter_init->time_segment_2) | \
BT_BAUDPSC(((uint32_t)(can_parameter_init->prescaler) - 1U)));
/* time trigger communication mode */
if(ENABLE == can_parameter_init->time_triggered){
CAN_CTL(can_periph) |= CAN_CTL_TTC;
}else{
CAN_CTL(can_periph) &= ~CAN_CTL_TTC;
}
/* automatic bus-off managment */
if(ENABLE == can_parameter_init->auto_bus_off_recovery){
CAN_CTL(can_periph) |= CAN_CTL_ABOR;
}else{
CAN_CTL(can_periph) &= ~CAN_CTL_ABOR;
}
/* automatic wakeup mode */
if(ENABLE == can_parameter_init->auto_wake_up){
CAN_CTL(can_periph) |= CAN_CTL_AWU;
}else{
CAN_CTL(can_periph) &= ~CAN_CTL_AWU;
}
/* automatic retransmission mode disable */
if(ENABLE == can_parameter_init->no_auto_retrans){
CAN_CTL(can_periph) |= CAN_CTL_ARD;
}else{
CAN_CTL(can_periph) &= ~CAN_CTL_ARD;
}
/* receive fifo overwrite mode */
if(ENABLE == can_parameter_init->rec_fifo_overwrite){
CAN_CTL(can_periph) |= CAN_CTL_RFOD;
}else{
CAN_CTL(can_periph) &= ~CAN_CTL_RFOD;
}
/* transmit fifo order */
if(ENABLE == can_parameter_init->trans_fifo_order){
CAN_CTL(can_periph) |= CAN_CTL_TFO;
}else{
CAN_CTL(can_periph) &= ~CAN_CTL_TFO;
}
/* disable initialize mode */
CAN_CTL(can_periph) &= ~CAN_CTL_IWMOD;
timeout = CAN_TIMEOUT;
/* wait the ACK */
while((CAN_STAT_IWS == (CAN_STAT(can_periph) & CAN_STAT_IWS)) && (0U != timeout)){
timeout--;
}
/* check exit initialize mode */
if(0U != timeout){
flag = SUCCESS;
}
}
return flag;
}
/*!
\brief initialize CAN filter
\param[in] can_filter_parameter_init: struct for CAN filter initialization
\arg filter_list_high: 0x0000 - 0xFFFF
\arg filter_list_low: 0x0000 - 0xFFFF
\arg filter_mask_high: 0x0000 - 0xFFFF
\arg filter_mask_low: 0x0000 - 0xFFFF
\arg filter_fifo_number: CAN_FIFO0, CAN_FIFO1
\arg filter_number: 0 - 27
\arg filter_mode: CAN_FILTERMODE_MASK, CAN_FILTERMODE_LIST
\arg filter_bits: CAN_FILTERBITS_32BIT, CAN_FILTERBITS_16BIT
\arg filter_enable: ENABLE or DISABLE
\param[out] none
\retval none
*/
void can_filter_init(can_filter_parameter_struct* can_filter_parameter_init)
{
uint32_t val = 0U;
val = ((uint32_t)1) << (can_filter_parameter_init->filter_number);
/* filter lock disable */
CAN_FCTL(CAN0) |= CAN_FCTL_FLD;
/* disable filter */
CAN_FW(CAN0) &= ~(uint32_t)val;
/* filter 16 bits */
if(CAN_FILTERBITS_16BIT == can_filter_parameter_init->filter_bits){
/* set filter 16 bits */
CAN_FSCFG(CAN0) &= ~(uint32_t)val;
/* first 16 bits list and first 16 bits mask or first 16 bits list and second 16 bits list */
CAN_FDATA0(CAN0, can_filter_parameter_init->filter_number) = \
FDATA_MASK_HIGH((can_filter_parameter_init->filter_mask_low) & CAN_FILTER_MASK_16BITS) | \
FDATA_MASK_LOW((can_filter_parameter_init->filter_list_low) & CAN_FILTER_MASK_16BITS);
/* second 16 bits list and second 16 bits mask or third 16 bits list and fourth 16 bits list */
CAN_FDATA1(CAN0, can_filter_parameter_init->filter_number) = \
FDATA_MASK_HIGH((can_filter_parameter_init->filter_mask_high) & CAN_FILTER_MASK_16BITS) | \
FDATA_MASK_LOW((can_filter_parameter_init->filter_list_high) & CAN_FILTER_MASK_16BITS);
}
/* filter 32 bits */
if(CAN_FILTERBITS_32BIT == can_filter_parameter_init->filter_bits){
/* set filter 32 bits */
CAN_FSCFG(CAN0) |= (uint32_t)val;
/* 32 bits list or first 32 bits list */
CAN_FDATA0(CAN0, can_filter_parameter_init->filter_number) = \
FDATA_MASK_HIGH((can_filter_parameter_init->filter_list_high) & CAN_FILTER_MASK_16BITS) |
FDATA_MASK_LOW((can_filter_parameter_init->filter_list_low) & CAN_FILTER_MASK_16BITS);
/* 32 bits mask or second 32 bits list */
CAN_FDATA1(CAN0, can_filter_parameter_init->filter_number) = \
FDATA_MASK_HIGH((can_filter_parameter_init->filter_mask_high) & CAN_FILTER_MASK_16BITS) |
FDATA_MASK_LOW((can_filter_parameter_init->filter_mask_low) & CAN_FILTER_MASK_16BITS);
}
/* filter mode */
if(CAN_FILTERMODE_MASK == can_filter_parameter_init->filter_mode){
/* mask mode */
CAN_FMCFG(CAN0) &= ~(uint32_t)val;
}else{
/* list mode */
CAN_FMCFG(CAN0) |= (uint32_t)val;
}
/* filter FIFO */
if(CAN_FIFO0 == (can_filter_parameter_init->filter_fifo_number)){
/* FIFO0 */
CAN_FAFIFO(CAN0) &= ~(uint32_t)val;
}else{
/* FIFO1 */
CAN_FAFIFO(CAN0) |= (uint32_t)val;
}
/* filter working */
if(ENABLE == can_filter_parameter_init->filter_enable){
CAN_FW(CAN0) |= (uint32_t)val;
}
/* filter lock enable */
CAN_FCTL(CAN0) &= ~CAN_FCTL_FLD;
}
/*!
\brief set CAN1 fliter start bank number
\param[in] start_bank: CAN1 start bank number
only one parameter can be selected which is shown as below:
\arg (1..27)
\param[out] none
\retval none
*/
void can1_filter_start_bank(uint8_t start_bank)
{
/* filter lock disable */
CAN_FCTL(CAN0) |= CAN_FCTL_FLD;
/* set CAN1 filter start number */
CAN_FCTL(CAN0) &= ~(uint32_t)CAN_FCTL_HBC1F;
CAN_FCTL(CAN0) |= FCTL_HBC1F(start_bank);
/* filter lock enaable */
CAN_FCTL(CAN0) &= ~CAN_FCTL_FLD;
}
/*!
\brief enable CAN debug freeze
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval none
*/
void can_debug_freeze_enable(uint32_t can_periph)
{
/* set DFZ bit */
CAN_CTL(can_periph) |= CAN_CTL_DFZ;
if(CAN0 == can_periph){
dbg_periph_enable(DBG_CAN0_HOLD);
}else{
dbg_periph_enable(DBG_CAN1_HOLD);
}
}
/*!
\brief disable CAN debug freeze
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval none
*/
void can_debug_freeze_disable(uint32_t can_periph)
{
/* set DFZ bit */
CAN_CTL(can_periph) &= ~CAN_CTL_DFZ;
if(CAN0 == can_periph){
dbg_periph_disable(DBG_CAN0_HOLD);
}else{
dbg_periph_disable(DBG_CAN1_HOLD);
}
}
/*!
\brief enable CAN time trigger mode
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval none
*/
void can_time_trigger_mode_enable(uint32_t can_periph)
{
uint8_t mailbox_number;
/* enable the tcc mode */
CAN_CTL(can_periph) |= CAN_CTL_TTC;
/* enable time stamp */
for(mailbox_number = 0U; mailbox_number < 3U; mailbox_number++){
CAN_TMP(can_periph, mailbox_number) |= CAN_TMP_TSEN;
}
}
/*!
\brief disable CAN time trigger mode
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval none
*/
void can_time_trigger_mode_disable(uint32_t can_periph)
{
uint8_t mailbox_number;
/* disable the TCC mode */
CAN_CTL(can_periph) &= ~CAN_CTL_TTC;
/* reset TSEN bits */
for(mailbox_number = 0U; mailbox_number < 3U; mailbox_number++){
CAN_TMP(can_periph, mailbox_number) &= ~CAN_TMP_TSEN;
}
}
/*!
\brief transmit CAN message
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] transmit_message: struct for CAN transmit message
\arg tx_sfid: 0x00000000 - 0x000007FF
\arg tx_efid: 0x00000000 - 0x1FFFFFFF
\arg tx_ff: CAN_FF_STANDARD, CAN_FF_EXTENDED
\arg tx_ft: CAN_FT_DATA, CAN_FT_REMOTE
\arg tx_dlen: 0 - 8
\arg tx_data[]: 0x00 - 0xFF
\param[out] none
\retval mailbox_number
*/
uint8_t can_message_transmit(uint32_t can_periph, can_trasnmit_message_struct* transmit_message)
{
uint8_t mailbox_number = CAN_MAILBOX0;
/* select one empty mailbox */
if(CAN_TSTAT_TME0 == (CAN_TSTAT(can_periph)&CAN_TSTAT_TME0)){
mailbox_number = CAN_MAILBOX0;
}else if(CAN_TSTAT_TME1 == (CAN_TSTAT(can_periph)&CAN_TSTAT_TME1)){
mailbox_number = CAN_MAILBOX1;
}else if(CAN_TSTAT_TME2 == (CAN_TSTAT(can_periph)&CAN_TSTAT_TME2)){
mailbox_number = CAN_MAILBOX2;
}else{
mailbox_number = CAN_NOMAILBOX;
}
/* return no mailbox empty */
if(CAN_NOMAILBOX == mailbox_number){
return CAN_NOMAILBOX;
}
CAN_TMI(can_periph, mailbox_number) &= CAN_TMI_TEN;
if(CAN_FF_STANDARD == transmit_message->tx_ff){
/* set transmit mailbox standard identifier */
CAN_TMI(can_periph, mailbox_number) |= (uint32_t)(TMI_SFID(transmit_message->tx_sfid) | \
transmit_message->tx_ft);
}else{
/* set transmit mailbox extended identifier */
CAN_TMI(can_periph, mailbox_number) |= (uint32_t)(TMI_EFID(transmit_message->tx_efid) | \
transmit_message->tx_ff | \
transmit_message->tx_ft);
}
/* set the data length */
CAN_TMP(can_periph, mailbox_number) &= ~CAN_TMP_DLENC;
CAN_TMP(can_periph, mailbox_number) |= transmit_message->tx_dlen;
/* set the data */
CAN_TMDATA0(can_periph, mailbox_number) = TMDATA0_DB3(transmit_message->tx_data[3]) | \
TMDATA0_DB2(transmit_message->tx_data[2]) | \
TMDATA0_DB1(transmit_message->tx_data[1]) | \
TMDATA0_DB0(transmit_message->tx_data[0]);
CAN_TMDATA1(can_periph, mailbox_number) = TMDATA1_DB7(transmit_message->tx_data[7]) | \
TMDATA1_DB6(transmit_message->tx_data[6]) | \
TMDATA1_DB5(transmit_message->tx_data[5]) | \
TMDATA1_DB4(transmit_message->tx_data[4]);
/* enable transmission */
CAN_TMI(can_periph, mailbox_number) |= CAN_TMI_TEN;
return mailbox_number;
}
/*!
\brief get CAN transmit state
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] mailbox_number
only one parameter can be selected which is shown as below:
\arg CAN_MAILBOX(x=0,1,2)
\param[out] none
\retval can_transmit_state_enum
*/
can_transmit_state_enum can_transmit_states(uint32_t can_periph, uint8_t mailbox_number)
{
can_transmit_state_enum state = CAN_TRANSMIT_FAILED;
uint32_t val = 0U;
/* check selected mailbox state */
switch(mailbox_number){
/* mailbox0 */
case CAN_MAILBOX0:
val = CAN_TSTAT(can_periph) & (CAN_TSTAT_MTF0 | CAN_TSTAT_MTFNERR0 | CAN_TSTAT_TME0);
break;
/* mailbox1 */
case CAN_MAILBOX1:
val = CAN_TSTAT(can_periph) & (CAN_TSTAT_MTF1 | CAN_TSTAT_MTFNERR1 | CAN_TSTAT_TME1);
break;
/* mailbox2 */
case CAN_MAILBOX2:
val = CAN_TSTAT(can_periph) & (CAN_TSTAT_MTF2 | CAN_TSTAT_MTFNERR2 | CAN_TSTAT_TME2);
break;
default:
val = CAN_TRANSMIT_FAILED;
break;
}
switch(val){
/* transmit pending */
case (CAN_STATE_PENDING):
state = CAN_TRANSMIT_PENDING;
break;
/* mailbox0 transmit succeeded */
case (CAN_TSTAT_MTF0 | CAN_TSTAT_MTFNERR0 | CAN_TSTAT_TME0):
state = CAN_TRANSMIT_OK;
break;
/* mailbox1 transmit succeeded */
case (CAN_TSTAT_MTF1 | CAN_TSTAT_MTFNERR1 | CAN_TSTAT_TME1):
state = CAN_TRANSMIT_OK;
break;
/* mailbox2 transmit succeeded */
case (CAN_TSTAT_MTF2 | CAN_TSTAT_MTFNERR2 | CAN_TSTAT_TME2):
state = CAN_TRANSMIT_OK;
break;
/* transmit failed */
default:
state = CAN_TRANSMIT_FAILED;
break;
}
return state;
}
/*!
\brief stop CAN transmission
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] mailbox_number
only one parameter can be selected which is shown as below:
\arg CAN_MAILBOXx(x=0,1,2)
\param[out] none
\retval none
*/
void can_transmission_stop(uint32_t can_periph, uint8_t mailbox_number)
{
if(CAN_MAILBOX0 == mailbox_number){
CAN_TSTAT(can_periph) |= CAN_TSTAT_MST0;
while(CAN_TSTAT_MST0 == (CAN_TSTAT(can_periph) & CAN_TSTAT_MST0)){
}
}else if(CAN_MAILBOX1 == mailbox_number){
CAN_TSTAT(can_periph) |= CAN_TSTAT_MST1;
while(CAN_TSTAT_MST1 == (CAN_TSTAT(can_periph) & CAN_TSTAT_MST1)){
}
}else if(CAN_MAILBOX2 == mailbox_number){
CAN_TSTAT(can_periph) |= CAN_TSTAT_MST2;
while(CAN_TSTAT_MST2 == (CAN_TSTAT(can_periph) & CAN_TSTAT_MST2)){
}
}else{
/* illegal parameters */
}
}
/*!
\brief CAN receive message
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] fifo_number
\arg CAN_FIFOx(x=0,1)
\param[out] receive_message: struct for CAN receive message
\arg rx_sfid: 0x00000000 - 0x000007FF
\arg rx_efid: 0x00000000 - 0x1FFFFFFF
\arg rx_ff: CAN_FF_STANDARD, CAN_FF_EXTENDED
\arg rx_ft: CAN_FT_DATA, CAN_FT_REMOTE
\arg rx_dlen: 0 - 8
\arg rx_data[]: 0x00 - 0xFF
\arg rx_fi: 0 - 27
\retval none
*/
void can_message_receive(uint32_t can_periph, uint8_t fifo_number, can_receive_message_struct* receive_message)
{
/* get the frame format */
receive_message->rx_ff = (uint8_t)(CAN_RFIFOMI_FF & CAN_RFIFOMI(can_periph, fifo_number));
if(CAN_FF_STANDARD == receive_message->rx_ff){
/* get standard identifier */
receive_message->rx_sfid = (uint32_t)(GET_RFIFOMI_SFID(CAN_RFIFOMI(can_periph, fifo_number)));
}else{
/* get extended identifier */
receive_message->rx_efid = (uint32_t)(GET_RFIFOMI_EFID(CAN_RFIFOMI(can_periph, fifo_number)));
}
/* get frame type */
receive_message->rx_ft = (uint8_t)(CAN_RFIFOMI_FT & CAN_RFIFOMI(can_periph, fifo_number));
/* filtering index */
receive_message->rx_fi = (uint8_t)(GET_RFIFOMP_FI(CAN_RFIFOMP(can_periph, fifo_number)));
/* get recevie data length */
receive_message->rx_dlen = (uint8_t)(GET_RFIFOMP_DLENC(CAN_RFIFOMP(can_periph, fifo_number)));
/* receive data */
receive_message -> rx_data[0] = (uint8_t)(GET_RFIFOMDATA0_DB0(CAN_RFIFOMDATA0(can_periph, fifo_number)));
receive_message -> rx_data[1] = (uint8_t)(GET_RFIFOMDATA0_DB1(CAN_RFIFOMDATA0(can_periph, fifo_number)));
receive_message -> rx_data[2] = (uint8_t)(GET_RFIFOMDATA0_DB2(CAN_RFIFOMDATA0(can_periph, fifo_number)));
receive_message -> rx_data[3] = (uint8_t)(GET_RFIFOMDATA0_DB3(CAN_RFIFOMDATA0(can_periph, fifo_number)));
receive_message -> rx_data[4] = (uint8_t)(GET_RFIFOMDATA1_DB4(CAN_RFIFOMDATA1(can_periph, fifo_number)));
receive_message -> rx_data[5] = (uint8_t)(GET_RFIFOMDATA1_DB5(CAN_RFIFOMDATA1(can_periph, fifo_number)));
receive_message -> rx_data[6] = (uint8_t)(GET_RFIFOMDATA1_DB6(CAN_RFIFOMDATA1(can_periph, fifo_number)));
receive_message -> rx_data[7] = (uint8_t)(GET_RFIFOMDATA1_DB7(CAN_RFIFOMDATA1(can_periph, fifo_number)));
/* release FIFO */
if(CAN_FIFO0 == fifo_number){
CAN_RFIFO0(can_periph) |= CAN_RFIFO0_RFD0;
}else{
CAN_RFIFO1(can_periph) |= CAN_RFIFO1_RFD1;
}
}
/*!
\brief release FIFO0
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] fifo_number
only one parameter can be selected which is shown as below:
\arg CAN_FIFOx(x=0,1)
\param[out] none
\retval none
*/
void can_fifo_release(uint32_t can_periph, uint8_t fifo_number)
{
if(CAN_FIFO0 == fifo_number){
CAN_RFIFO0(can_periph) |= CAN_RFIFO0_RFD0;
}else if(CAN_FIFO1 == fifo_number){
CAN_RFIFO1(can_periph) |= CAN_RFIFO1_RFD1;
}else{
/* illegal parameters */
CAN_ERROR_HANDLE("CAN FIFO NUM is invalid \r\n");
}
}
/*!
\brief CAN receive message length
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] fifo_number
only one parameter can be selected which is shown as below:
\arg CAN_FIFOx(x=0,1)
\param[out] none
\retval message length
*/
uint8_t can_receive_message_length_get(uint32_t can_periph, uint8_t fifo_number)
{
uint8_t val = 0U;
if(CAN_FIFO0 == fifo_number){
/* FIFO0 */
val = (uint8_t)(CAN_RFIFO0(can_periph) & CAN_RFIF_RFL_MASK);
}else if(CAN_FIFO1 == fifo_number){
/* FIFO1 */
val = (uint8_t)(CAN_RFIFO1(can_periph) & CAN_RFIF_RFL_MASK);
}else{
/* illegal parameters */
}
return val;
}
/*!
\brief set CAN working mode
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] can_working_mode
only one parameter can be selected which is shown as below:
\arg CAN_MODE_INITIALIZE
\arg CAN_MODE_NORMAL
\arg CAN_MODE_SLEEP
\param[out] none
\retval ErrStatus: SUCCESS or ERROR
*/
ErrStatus can_working_mode_set(uint32_t can_periph, uint8_t working_mode)
{
ErrStatus flag = ERROR;
/* timeout for IWS or also for SLPWS bits */
uint32_t timeout = CAN_TIMEOUT;
if(CAN_MODE_INITIALIZE == working_mode){
/* disable sleep mode */
CAN_CTL(can_periph) &= (~(uint32_t)CAN_CTL_SLPWMOD);
/* set initialize mode */
CAN_CTL(can_periph) |= (uint8_t)CAN_CTL_IWMOD;
/* wait the acknowledge */
while((CAN_STAT_IWS != (CAN_STAT(can_periph) & CAN_STAT_IWS)) && (0U != timeout)){
timeout--;
}
if(CAN_STAT_IWS != (CAN_STAT(can_periph) & CAN_STAT_IWS)){
flag = ERROR;
}else{
flag = SUCCESS;
}
}else if(CAN_MODE_NORMAL == working_mode){
/* enter normal mode */
CAN_CTL(can_periph) &= ~(uint32_t)(CAN_CTL_SLPWMOD | CAN_CTL_IWMOD);
/* wait the acknowledge */
while((0U != (CAN_STAT(can_periph) & (CAN_STAT_IWS | CAN_STAT_SLPWS))) && (0U != timeout)){
timeout--;
}
if(0U != (CAN_STAT(can_periph) & (CAN_STAT_IWS | CAN_STAT_SLPWS))){
flag = ERROR;
}else{
flag = SUCCESS;
}
}else if(CAN_MODE_SLEEP == working_mode){
/* disable initialize mode */
CAN_CTL(can_periph) &= (~(uint32_t)CAN_CTL_IWMOD);
/* set sleep mode */
CAN_CTL(can_periph) |= (uint8_t)CAN_CTL_SLPWMOD;
/* wait the acknowledge */
while((CAN_STAT_SLPWS != (CAN_STAT(can_periph) & CAN_STAT_SLPWS)) && (0U != timeout)){
timeout--;
}
if(CAN_STAT_SLPWS != (CAN_STAT(can_periph) & CAN_STAT_SLPWS)){
flag = ERROR;
}else{
flag = SUCCESS;
}
}else{
flag = ERROR;
}
return flag;
}
/*!
\brief wake up CAN
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval ErrStatus: SUCCESS or ERROR
*/
ErrStatus can_wakeup(uint32_t can_periph)
{
ErrStatus flag = ERROR;
uint32_t timeout = CAN_TIMEOUT;
/* wakeup */
CAN_CTL(can_periph) &= ~CAN_CTL_SLPWMOD;
while((0U != (CAN_STAT(can_periph) & CAN_STAT_SLPWS)) && (0x00U != timeout)){
timeout--;
}
/* check state */
if(0U != (CAN_STAT(can_periph) & CAN_STAT_SLPWS)){
flag = ERROR;
}else{
flag = SUCCESS;
}
return flag;
}
/*!
\brief get CAN error type
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval can_error_enum
\arg CAN_ERROR_NONE: no error
\arg CAN_ERROR_FILL: fill error
\arg CAN_ERROR_FORMATE: format error
\arg CAN_ERROR_ACK: ACK error
\arg CAN_ERROR_BITRECESSIVE: bit recessive
\arg CAN_ERROR_BITDOMINANTER: bit dominant error
\arg CAN_ERROR_CRC: CRC error
\arg CAN_ERROR_SOFTWARECFG: software configure
*/
can_error_enum can_error_get(uint32_t can_periph)
{
can_error_enum error;
error = CAN_ERROR_NONE;
/* get error type */
error = (can_error_enum)(GET_ERR_ERRN(CAN_ERR(can_periph)));
return error;
}
/*!
\brief get CAN receive error number
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval error number
*/
uint8_t can_receive_error_number_get(uint32_t can_periph)
{
uint8_t val;
/* get error count */
val = (uint8_t)(GET_ERR_RECNT(CAN_ERR(can_periph)));
return val;
}
/*!
\brief get CAN transmit error number
\param[in] can_periph
\arg CANx(x=0,1)
\param[out] none
\retval error number
*/
uint8_t can_transmit_error_number_get(uint32_t can_periph)
{
uint8_t val;
val = (uint8_t)(GET_ERR_TECNT(CAN_ERR(can_periph)));
return val;
}
/*!
\brief enable CAN interrupt
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] interrupt
one or more parameters can be selected which are shown as below:
\arg CAN_INT_TME: transmit mailbox empty interrupt enable
\arg CAN_INT_RFNE0: receive FIFO0 not empty interrupt enable
\arg CAN_INT_RFF0: receive FIFO0 full interrupt enable
\arg CAN_INT_RFO0: receive FIFO0 overfull interrupt enable
\arg CAN_INT_RFNE1: receive FIFO1 not empty interrupt enable
\arg CAN_INT_RFF1: receive FIFO1 full interrupt enable
\arg CAN_INT_RFO1: receive FIFO1 overfull interrupt enable
\arg CAN_INT_WERR: warning error interrupt enable
\arg CAN_INT_PERR: passive error interrupt enable
\arg CAN_INT_BO: bus-off interrupt enable
\arg CAN_INT_ERRN: error number interrupt enable
\arg CAN_INT_ERR: error interrupt enable
\arg CAN_INT_WU: wakeup interrupt enable
\arg CAN_INT_SLPW: sleep working interrupt enable
\param[out] none
\retval none
*/
void can_interrupt_enable(uint32_t can_periph, uint32_t interrupt)
{
CAN_INTEN(can_periph) |= interrupt;
}
/*!
\brief disable CAN interrupt
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] interrupt
one or more parameters can be selected which are shown as below:
\arg CAN_INT_TME: transmit mailbox empty interrupt enable
\arg CAN_INT_RFNE0: receive FIFO0 not empty interrupt enable
\arg CAN_INT_RFF0: receive FIFO0 full interrupt enable
\arg CAN_INT_RFO0: receive FIFO0 overfull interrupt enable
\arg CAN_INT_RFNE1: receive FIFO1 not empty interrupt enable
\arg CAN_INT_RFF1: receive FIFO1 full interrupt enable
\arg CAN_INT_RFO1: receive FIFO1 overfull interrupt enable
\arg CAN_INT_WERR: warning error interrupt enable
\arg CAN_INT_PERR: passive error interrupt enable
\arg CAN_INT_BO: bus-off interrupt enable
\arg CAN_INT_ERRN: error number interrupt enable
\arg CAN_INT_ERR: error interrupt enable
\arg CAN_INT_WU: wakeup interrupt enable
\arg CAN_INT_SLPW: sleep working interrupt enable
\param[out] none
\retval none
*/
void can_interrupt_disable(uint32_t can_periph, uint32_t interrupt)
{
CAN_INTEN(can_periph) &= ~interrupt;
}
/*!
\brief get CAN flag state
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] flag: CAN flags, refer to can_flag_enum
only one parameter can be selected which is shown as below:
\arg CAN_FLAG_RXL: RX level
\arg CAN_FLAG_LASTRX: last sample value of RX pin
\arg CAN_FLAG_RS: receiving state
\arg CAN_FLAG_TS: transmitting state
\arg CAN_FLAG_SLPIF: status change flag of entering sleep working mode
\arg CAN_FLAG_WUIF: status change flag of wakeup from sleep working mode
\arg CAN_FLAG_ERRIF: error flag
\arg CAN_FLAG_SLPWS: sleep working state
\arg CAN_FLAG_IWS: initial working state
\arg CAN_FLAG_TMLS2: transmit mailbox 2 last sending in Tx FIFO
\arg CAN_FLAG_TMLS1: transmit mailbox 1 last sending in Tx FIFO
\arg CAN_FLAG_TMLS0: transmit mailbox 0 last sending in Tx FIFO
\arg CAN_FLAG_TME2: transmit mailbox 2 empty
\arg CAN_FLAG_TME1: transmit mailbox 1 empty
\arg CAN_FLAG_TME0: transmit mailbox 0 empty
\arg CAN_FLAG_MTE2: mailbox 2 transmit error
\arg CAN_FLAG_MTE1: mailbox 1 transmit error
\arg CAN_FLAG_MTE0: mailbox 0 transmit error
\arg CAN_FLAG_MAL2: mailbox 2 arbitration lost
\arg CAN_FLAG_MAL1: mailbox 1 arbitration lost
\arg CAN_FLAG_MAL0: mailbox 0 arbitration lost
\arg CAN_FLAG_MTFNERR2: mailbox 2 transmit finished with no error
\arg CAN_FLAG_MTFNERR1: mailbox 1 transmit finished with no error
\arg CAN_FLAG_MTFNERR0: mailbox 0 transmit finished with no error
\arg CAN_FLAG_MTF2: mailbox 2 transmit finished
\arg CAN_FLAG_MTF1: mailbox 1 transmit finished
\arg CAN_FLAG_MTF0: mailbox 0 transmit finished
\arg CAN_FLAG_RFO0: receive FIFO0 overfull
\arg CAN_FLAG_RFF0: receive FIFO0 full
\arg CAN_FLAG_RFO1: receive FIFO1 overfull
\arg CAN_FLAG_RFF1: receive FIFO1 full
\arg CAN_FLAG_BOERR: bus-off error
\arg CAN_FLAG_PERR: passive error
\arg CAN_FLAG_WERR: warning error
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus can_flag_get(uint32_t can_periph, can_flag_enum flag)
{
/* get flag and interrupt enable state */
if(RESET != (CAN_REG_VAL(can_periph, flag) & BIT(CAN_BIT_POS(flag)))){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear CAN flag state
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] flag: CAN flags, refer to can_flag_enum
only one parameter can be selected which is shown as below:
\arg CAN_FLAG_SLPIF: status change flag of entering sleep working mode
\arg CAN_FLAG_WUIF: status change flag of wakeup from sleep working mode
\arg CAN_FLAG_ERRIF: error flag
\arg CAN_FLAG_MTE2: mailbox 2 transmit error
\arg CAN_FLAG_MTE1: mailbox 1 transmit error
\arg CAN_FLAG_MTE0: mailbox 0 transmit error
\arg CAN_FLAG_MAL2: mailbox 2 arbitration lost
\arg CAN_FLAG_MAL1: mailbox 1 arbitration lost
\arg CAN_FLAG_MAL0: mailbox 0 arbitration lost
\arg CAN_FLAG_MTFNERR2: mailbox 2 transmit finished with no error
\arg CAN_FLAG_MTFNERR1: mailbox 1 transmit finished with no error
\arg CAN_FLAG_MTFNERR0: mailbox 0 transmit finished with no error
\arg CAN_FLAG_MTF2: mailbox 2 transmit finished
\arg CAN_FLAG_MTF1: mailbox 1 transmit finished
\arg CAN_FLAG_MTF0: mailbox 0 transmit finished
\arg CAN_FLAG_RFO0: receive FIFO0 overfull
\arg CAN_FLAG_RFF0: receive FIFO0 full
\arg CAN_FLAG_RFO1: receive FIFO1 overfull
\arg CAN_FLAG_RFF1: receive FIFO1 full
\param[out] none
\retval none
*/
void can_flag_clear(uint32_t can_periph, can_flag_enum flag)
{
CAN_REG_VAL(can_periph, flag) |= BIT(CAN_BIT_POS(flag));
}
/*!
\brief get CAN interrupt flag state
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] flag: CAN interrupt flags, refer to can_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg CAN_INT_FLAG_SLPIF: status change interrupt flag of sleep working mode entering
\arg CAN_INT_FLAG_WUIF: status change interrupt flag of wakeup from sleep working mode
\arg CAN_INT_FLAG_ERRIF: error interrupt flag
\arg CAN_INT_FLAG_MTF2: mailbox 2 transmit finished interrupt flag
\arg CAN_INT_FLAG_MTF1: mailbox 1 transmit finished interrupt flag
\arg CAN_INT_FLAG_MTF0: mailbox 0 transmit finished interrupt flag
\arg CAN_INT_FLAG_RFO0: receive FIFO0 overfull interrupt flag
\arg CAN_INT_FLAG_RFF0: receive FIFO0 full interrupt flag
\arg CAN_INT_FLAG_RFL0: receive FIFO0 not empty interrupt flag
\arg CAN_INT_FLAG_RFO1: receive FIFO1 overfull interrupt flag
\arg CAN_INT_FLAG_RFF1: receive FIFO1 full interrupt flag
\arg CAN_INT_FLAG_RFL1: receive FIFO1 not empty interrupt flag
\arg CAN_INT_FLAG_ERRN: error number interrupt flag
\arg CAN_INT_FLAG_BOERR: bus-off error interrupt flag
\arg CAN_INT_FLAG_PERR: passive error interrupt flag
\arg CAN_INT_FLAG_WERR: warning error interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus can_interrupt_flag_get(uint32_t can_periph, can_interrupt_flag_enum flag)
{
uint32_t ret1 = RESET;
uint32_t ret2 = RESET;
/* get the staus of interrupt flag */
if (flag == CAN_INT_FLAG_RFF0) {
ret1 = can_receive_message_length_get(can_periph, CAN_FIFO0);
} else if (flag == CAN_INT_FLAG_RFF1) {
ret1 = can_receive_message_length_get(can_periph, CAN_FIFO1);
} else if (flag == CAN_INT_FLAG_ERRN) {
ret1 = can_error_get(can_periph);
} else {
ret1 = CAN_REG_VALS(can_periph, flag) & BIT(CAN_BIT_POS0(flag));
}
/* get the staus of interrupt enale bit */
ret2 = CAN_INTEN(can_periph) & BIT(CAN_BIT_POS1(flag));
if(ret1 && ret2){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear CAN interrupt flag state
\param[in] can_periph
\arg CANx(x=0,1)
\param[in] flag: CAN interrupt flags, refer to can_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg CAN_INT_FLAG_SLPIF: status change interrupt flag of sleep working mode entering
\arg CAN_INT_FLAG_WUIF: status change interrupt flag of wakeup from sleep working mode
\arg CAN_INT_FLAG_ERRIF: error interrupt flag
\arg CAN_INT_FLAG_MTF2: mailbox 2 transmit finished interrupt flag
\arg CAN_INT_FLAG_MTF1: mailbox 1 transmit finished interrupt flag
\arg CAN_INT_FLAG_MTF0: mailbox 0 transmit finished interrupt flag
\arg CAN_INT_FLAG_RFO0: receive FIFO0 overfull interrupt flag
\arg CAN_INT_FLAG_RFF0: receive FIFO0 full interrupt flag
\arg CAN_INT_FLAG_RFO1: receive FIFO1 overfull interrupt flag
\arg CAN_INT_FLAG_RFF1: receive FIFO1 full interrupt flag
\param[out] none
\retval none
*/
void can_interrupt_flag_clear(uint32_t can_periph, can_interrupt_flag_enum flag)
{
CAN_REG_VALS(can_periph, flag) |= BIT(CAN_BIT_POS0(flag));
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_crc.c
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/*!
\file gd32vf103_crc.c
\brief CRC driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_crc.h"
#define CRC_DATA_RESET_VALUE ((uint32_t)0xFFFFFFFFU)
#define CRC_FDATA_RESET_VALUE ((uint32_t)0x00000000U)
/*!
\brief deinit CRC calculation unit
\param[in] none
\param[out] none
\retval none
*/
void crc_deinit(void)
{
CRC_DATA = CRC_DATA_RESET_VALUE;
CRC_FDATA = CRC_FDATA_RESET_VALUE;
CRC_CTL = (uint32_t)CRC_CTL_RST;
}
/*!
\brief reset data register(CRC_DATA) to the value of 0xFFFFFFFF
\param[in] none
\param[out] none
\retval none
*/
void crc_data_register_reset(void)
{
CRC_CTL |= (uint32_t)CRC_CTL_RST;
}
/*!
\brief read the value of the data register
\param[in] none
\param[out] none
\retval 32-bit value of the data register
*/
uint32_t crc_data_register_read(void)
{
uint32_t data;
data = CRC_DATA;
return (data);
}
/*!
\brief read the value of the free data register
\param[in] none
\param[out] none
\retval 8-bit value of the free data register
*/
uint8_t crc_free_data_register_read(void)
{
uint8_t fdata;
fdata = (uint8_t)CRC_FDATA;
return (fdata);
}
/*!
\brief write data to the free data register
\param[in] free_data: specified 8-bit data
\param[out] none
\retval none
*/
void crc_free_data_register_write(uint8_t free_data)
{
CRC_FDATA = (uint32_t)free_data;
}
/*!
\brief calculate the CRC value of a 32-bit data
\param[in] sdata: specified 32-bit data
\param[out] none
\retval 32-bit value calculated by CRC
*/
uint32_t crc_single_data_calculate(uint32_t sdata)
{
CRC_DATA = sdata;
return (CRC_DATA);
}
/*!
\brief calculate the CRC value of an array of 32-bit values
\param[in] array: pointer to an array of 32-bit values
\param[in] size: size of the array
\param[out] none
\retval 32-bit value calculated by CRC
*/
uint32_t crc_block_data_calculate(uint32_t array[], uint32_t size)
{
uint32_t index;
for(index = 0U; index < size; index++){
CRC_DATA = array[index];
}
return (CRC_DATA);
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_dac.c
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/*!
\file gd32vf103_dac.c
\brief DAC driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_dac.h"
/* DAC register bit offset */
#define DAC1_REG_OFFSET ((uint32_t)16U)
#define DH_12BIT_OFFSET ((uint32_t)16U)
#define DH_8BIT_OFFSET ((uint32_t)8U)
/*!
\brief deinitialize DAC
\param[in] none
\param[out] none
\retval none
*/
void dac_deinit(void)
{
rcu_periph_reset_enable(RCU_DACRST);
rcu_periph_reset_disable(RCU_DACRST);
}
/*!
\brief enable DAC
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_enable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL |= DAC_CTL_DEN0;
}else{
DAC_CTL |= DAC_CTL_DEN1;
}
}
/*!
\brief disable DAC
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_disable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL &= ~DAC_CTL_DEN0;
}else{
DAC_CTL &= ~DAC_CTL_DEN1;
}
}
/*!
\brief enable DAC DMA function
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_dma_enable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL |= DAC_CTL_DDMAEN0;
}else{
DAC_CTL |= DAC_CTL_DDMAEN1;
}
}
/*!
\brief disable DAC DMA function
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_dma_disable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL &= ~DAC_CTL_DDMAEN0;
}else{
DAC_CTL &= ~DAC_CTL_DDMAEN1;
}
}
/*!
\brief enable DAC output buffer
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_output_buffer_enable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL &= ~DAC_CTL_DBOFF0;
}else{
DAC_CTL &= ~DAC_CTL_DBOFF1;
}
}
/*!
\brief disable DAC output buffer
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_output_buffer_disable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL |= DAC_CTL_DBOFF0;
}else{
DAC_CTL |= DAC_CTL_DBOFF1;
}
}
/*!
\brief get DAC output value
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval DAC output data
*/
uint16_t dac_output_value_get(uint32_t dac_periph)
{
uint16_t data = 0U;
if(DAC0 == dac_periph){
/* store the DAC0 output value */
data = (uint16_t)DAC0_DO;
}else{
/* store the DAC1 output value */
data = (uint16_t)DAC1_DO;
}
return data;
}
/*!
\brief set the DAC specified data holding register value
\param[in] dac_periph: DACx(x = 0,1)
\param[in] dac_align: data alignment
only one parameter can be selected which is shown as below:
\arg DAC_ALIGN_8B_R: data right 8 bit alignment
\arg DAC_ALIGN_12B_R: data right 12 bit alignment
\arg DAC_ALIGN_12B_L: data left 12 bit alignment
\param[in] data: data to be loaded
\param[out] none
\retval none
*/
void dac_data_set(uint32_t dac_periph, uint32_t dac_align, uint16_t data)
{
if(DAC0 == dac_periph){
switch(dac_align){
/* data right 12 bit alignment */
case DAC_ALIGN_12B_R:
DAC0_R12DH = data;
break;
/* data left 12 bit alignment */
case DAC_ALIGN_12B_L:
DAC0_L12DH = data;
break;
/* data right 8 bit alignment */
case DAC_ALIGN_8B_R:
DAC0_R8DH = data;
break;
default:
break;
}
}else{
switch(dac_align){
/* data right 12 bit alignment */
case DAC_ALIGN_12B_R:
DAC1_R12DH = data;
break;
/* data left 12 bit alignment */
case DAC_ALIGN_12B_L:
DAC1_L12DH = data;
break;
/* data right 8 bit alignment */
case DAC_ALIGN_8B_R:
DAC1_R8DH = data;
break;
default:
break;
}
}
}
/*!
\brief enable DAC trigger
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_trigger_enable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL |= DAC_CTL_DTEN0;
}else{
DAC_CTL |= DAC_CTL_DTEN1;
}
}
/*!
\brief disable DAC trigger
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_trigger_disable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_CTL &= ~DAC_CTL_DTEN0;
}else{
DAC_CTL &= ~DAC_CTL_DTEN1;
}
}
/*!
\brief set DAC trigger source
\param[in] dac_periph: DACx(x = 0,1)
\param[in] triggersource: external triggers of DAC
only one parameter can be selected which is shown as below:
\arg DAC_TRIGGER_T1_TRGO: TIMER1 TRGO
\arg DAC_TRIGGER_T2_TRGO: TIMER2 TRGO
\arg DAC_TRIGGER_T3_TRGO: TIMER3 TRGO
\arg DAC_TRIGGER_T4_TRGO: TIMER4 TRGO
\arg DAC_TRIGGER_T5_TRGO: TIMER5 TRGO
\arg DAC_TRIGGER_T6_TRGO: TIMER6 TRGO
\arg DAC_TRIGGER_EXTI_9: EXTI interrupt line9 event
\arg DAC_TRIGGER_SOFTWARE: software trigger
\param[out] none
\retval none
*/
void dac_trigger_source_config(uint32_t dac_periph,uint32_t triggersource)
{
if(DAC0 == dac_periph){
/* configure DAC0 trigger source */
DAC_CTL &= ~DAC_CTL_DTSEL0;
DAC_CTL |= triggersource;
}else{
/* configure DAC1 trigger source */
DAC_CTL &= ~DAC_CTL_DTSEL1;
DAC_CTL |= (triggersource << DAC1_REG_OFFSET);
}
}
/*!
\brief enable DAC software trigger
\param[in] dac_periph: DACx(x = 0,1)
\retval none
*/
void dac_software_trigger_enable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_SWT |= DAC_SWT_SWTR0;
}else{
DAC_SWT |= DAC_SWT_SWTR1;
}
}
/*!
\brief disable DAC software trigger
\param[in] dac_periph: DACx(x = 0,1)
\param[out] none
\retval none
*/
void dac_software_trigger_disable(uint32_t dac_periph)
{
if(DAC0 == dac_periph){
DAC_SWT &= ~DAC_SWT_SWTR0;
}else{
DAC_SWT &= ~DAC_SWT_SWTR1;
}
}
/*!
\brief configure DAC wave mode
\param[in] dac_periph: DACx(x = 0,1)
\param[in] wave_mode: noise wave mode
only one parameter can be selected which is shown as below:
\arg DAC_WAVE_DISABLE: wave disable
\arg DAC_WAVE_MODE_LFSR: LFSR noise mode
\arg DAC_WAVE_MODE_TRIANGLE: triangle noise mode
\param[out] none
\retval none
*/
void dac_wave_mode_config(uint32_t dac_periph, uint32_t wave_mode)
{
if(DAC0 == dac_periph){
/* configure DAC0 wave mode */
DAC_CTL &= ~DAC_CTL_DWM0;
DAC_CTL |= wave_mode;
}else{
/* configure DAC1 wave mode */
DAC_CTL &= ~DAC_CTL_DWM1;
DAC_CTL |= (wave_mode << DAC1_REG_OFFSET);
}
}
/*!
\brief configure DAC wave bit width
\param[in] dac_periph: DACx(x = 0,1)
\param[in] bit_width: noise wave bit width
only one parameter can be selected which is shown as below:
\arg DAC_WAVE_BIT_WIDTH_1: bit width of the wave signal is 1
\arg DAC_WAVE_BIT_WIDTH_2: bit width of the wave signal is 2
\arg DAC_WAVE_BIT_WIDTH_3: bit width of the wave signal is 3
\arg DAC_WAVE_BIT_WIDTH_4: bit width of the wave signal is 4
\arg DAC_WAVE_BIT_WIDTH_5: bit width of the wave signal is 5
\arg DAC_WAVE_BIT_WIDTH_6: bit width of the wave signal is 6
\arg DAC_WAVE_BIT_WIDTH_7: bit width of the wave signal is 7
\arg DAC_WAVE_BIT_WIDTH_8: bit width of the wave signal is 8
\arg DAC_WAVE_BIT_WIDTH_9: bit width of the wave signal is 9
\arg DAC_WAVE_BIT_WIDTH_10: bit width of the wave signal is 10
\arg DAC_WAVE_BIT_WIDTH_11: bit width of the wave signal is 11
\arg DAC_WAVE_BIT_WIDTH_12: bit width of the wave signal is 12
\param[out] none
\retval none
*/
void dac_wave_bit_width_config(uint32_t dac_periph, uint32_t bit_width)
{
if(DAC0 == dac_periph){
/* configure DAC0 wave bit width */
DAC_CTL &= ~DAC_CTL_DWBW0;
DAC_CTL |= bit_width;
}else{
/* configure DAC1 wave bit width */
DAC_CTL &= ~DAC_CTL_DWBW1;
DAC_CTL |= (bit_width << DAC1_REG_OFFSET);
}
}
/*!
\brief configure DAC LFSR noise mode
\param[in] dac_periph: DACx(x = 0,1)
\param[in] unmask_bits: unmask LFSR bits in DAC LFSR noise mode
only one parameter can be selected which is shown as below:
\arg DAC_LFSR_BIT0: unmask the LFSR bit0
\arg DAC_LFSR_BITS1_0: unmask the LFSR bits[1:0]
\arg DAC_LFSR_BITS2_0: unmask the LFSR bits[2:0]
\arg DAC_LFSR_BITS3_0: unmask the LFSR bits[3:0]
\arg DAC_LFSR_BITS4_0: unmask the LFSR bits[4:0]
\arg DAC_LFSR_BITS5_0: unmask the LFSR bits[5:0]
\arg DAC_LFSR_BITS6_0: unmask the LFSR bits[6:0]
\arg DAC_LFSR_BITS7_0: unmask the LFSR bits[7:0]
\arg DAC_LFSR_BITS8_0: unmask the LFSR bits[8:0]
\arg DAC_LFSR_BITS9_0: unmask the LFSR bits[9:0]
\arg DAC_LFSR_BITS10_0: unmask the LFSR bits[10:0]
\arg DAC_LFSR_BITS11_0: unmask the LFSR bits[11:0]
\param[out] none
\retval none
*/
void dac_lfsr_noise_config(uint32_t dac_periph, uint32_t unmask_bits)
{
if(DAC0 == dac_periph){
/* configure DAC0 LFSR noise mode */
DAC_CTL &= ~DAC_CTL_DWBW0;
DAC_CTL |= unmask_bits;
}else{
/* configure DAC1 LFSR noise mode */
DAC_CTL &= ~DAC_CTL_DWBW1;
DAC_CTL |= (unmask_bits << DAC1_REG_OFFSET);
}
}
/*!
\brief configure DAC triangle noise mode
\param[in] dac_periph: DACx(x = 0,1)
\param[in] amplitude: triangle amplitude in DAC triangle noise mode
only one parameter can be selected which is shown as below:
\arg DAC_TRIANGLE_AMPLITUDE_1: triangle amplitude is 1
\arg DAC_TRIANGLE_AMPLITUDE_3: triangle amplitude is 3
\arg DAC_TRIANGLE_AMPLITUDE_7: triangle amplitude is 7
\arg DAC_TRIANGLE_AMPLITUDE_15: triangle amplitude is 15
\arg DAC_TRIANGLE_AMPLITUDE_31: triangle amplitude is 31
\arg DAC_TRIANGLE_AMPLITUDE_63: triangle amplitude is 63
\arg DAC_TRIANGLE_AMPLITUDE_127: triangle amplitude is 127
\arg DAC_TRIANGLE_AMPLITUDE_255: triangle amplitude is 255
\arg DAC_TRIANGLE_AMPLITUDE_511: triangle amplitude is 511
\arg DAC_TRIANGLE_AMPLITUDE_1023: triangle amplitude is 1023
\arg DAC_TRIANGLE_AMPLITUDE_2047: triangle amplitude is 2047
\arg DAC_TRIANGLE_AMPLITUDE_4095: triangle amplitude is 4095
\param[out] none
\retval none
*/
void dac_triangle_noise_config(uint32_t dac_periph, uint32_t amplitude)
{
if(DAC0 == dac_periph){
/* configure DAC0 triangle noise mode */
DAC_CTL &= ~DAC_CTL_DWBW0;
DAC_CTL |= amplitude;
}else{
/* configure DAC1 triangle noise mode */
DAC_CTL &= ~DAC_CTL_DWBW1;
DAC_CTL |= (amplitude << DAC1_REG_OFFSET);
}
}
/*!
\brief enable DAC concurrent mode
\param[in] none
\param[out] none
\retval none
*/
void dac_concurrent_enable(void)
{
uint32_t ctl = 0U;
ctl = DAC_CTL_DEN0 | DAC_CTL_DEN1;
DAC_CTL |= (ctl);
}
/*!
\brief disable DAC concurrent mode
\param[in] none
\param[out] none
\retval none
*/
void dac_concurrent_disable(void)
{
uint32_t ctl = 0U;
ctl = DAC_CTL_DEN0 | DAC_CTL_DEN1;
DAC_CTL &= (~ctl);
}
/*!
\brief enable DAC concurrent software trigger function
\param[in] none
\param[out] none
\retval none
*/
void dac_concurrent_software_trigger_enable(void)
{
uint32_t swt = 0U;
swt = DAC_SWT_SWTR0 | DAC_SWT_SWTR1;
DAC_SWT |= (swt);
}
/*!
\brief disable DAC concurrent software trigger function
\param[in] none
\param[out] none
\retval none
*/
void dac_concurrent_software_trigger_disable(void)
{
uint32_t swt = 0U;
swt = DAC_SWT_SWTR0 | DAC_SWT_SWTR1;
DAC_SWT &= (~swt);
}
/*!
\brief enable DAC concurrent buffer function
\param[in] none
\param[out] none
\retval none
*/
void dac_concurrent_output_buffer_enable(void)
{
uint32_t ctl = 0U;
ctl = DAC_CTL_DBOFF0 | DAC_CTL_DBOFF1;
DAC_CTL &= (~ctl);
}
/*!
\brief disable DAC concurrent buffer function
\param[in] none
\param[out] none
\retval none
*/
void dac_concurrent_output_buffer_disable(void)
{
uint32_t ctl = 0U;
ctl = DAC_CTL_DBOFF0 | DAC_CTL_DBOFF1;
DAC_CTL |= (ctl);
}
/*!
\brief set DAC concurrent mode data holding register value
\param[in] dac_align: data alignment
only one parameter can be selected which is shown as below:
\arg DAC_ALIGN_8B_R: data right 8b alignment
\arg DAC_ALIGN_12B_R: data right 12b alignment
\arg DAC_ALIGN_12B_L: data left 12b alignment
\param[in] data0: data to be loaded
\param[in] data1: data to be loaded
\param[out] none
\retval none
*/
void dac_concurrent_data_set(uint32_t dac_align, uint16_t data0, uint16_t data1)
{
uint32_t data = 0U;
switch(dac_align){
/* data right 12b alignment */
case DAC_ALIGN_12B_R:
data = ((uint32_t)data1 << DH_12BIT_OFFSET) | data0;
DACC_R12DH = data;
break;
/* data left 12b alignment */
case DAC_ALIGN_12B_L:
data = ((uint32_t)data1 << DH_12BIT_OFFSET) | data0;
DACC_L12DH = data;
break;
/* data right 8b alignment */
case DAC_ALIGN_8B_R:
data = ((uint32_t)data1 << DH_8BIT_OFFSET) | data0;
DACC_R8DH = data;
break;
default:
break;
}
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_dbg.c
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/*!
\file gd32vf103_dbg.c
\brief DBG driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_dbg.h"
/*!
\brief read DBG_ID code register
\param[in] none
\param[out] none
\retval DBG_ID code
*/
uint32_t dbg_id_get(void)
{
return DBG_ID;
}
/*!
\brief enable low power behavior when the mcu is in debug mode
\param[in] dbg_low_power:
one or more parameters can be selected which are shown as below:
\arg DBG_LOW_POWER_SLEEP: keep debugger connection during sleep mode
\arg DBG_LOW_POWER_DEEPSLEEP: keep debugger connection during deepsleep mode
\arg DBG_LOW_POWER_STANDBY: keep debugger connection during standby mode
\param[out] none
\retval none
*/
void dbg_low_power_enable(uint32_t dbg_low_power)
{
DBG_CTL |= dbg_low_power;
}
/*!
\brief disable low power behavior when the mcu is in debug mode
\param[in] dbg_low_power:
one or more parameters can be selected which are shown as below:
\arg DBG_LOW_POWER_SLEEP: donot keep debugger connection during sleep mode
\arg DBG_LOW_POWER_DEEPSLEEP: donot keep debugger connection during deepsleep mode
\arg DBG_LOW_POWER_STANDBY: donot keep debugger connection during standby mode
\param[out] none
\retval none
*/
void dbg_low_power_disable(uint32_t dbg_low_power)
{
DBG_CTL &= ~dbg_low_power;
}
/*!
\brief enable peripheral behavior when the mcu is in debug mode
\param[in] dbg_periph: refer to dbg_periph_enum
one or more parameters can be selected which are shown as below:
\arg DBG_FWDGT_HOLD : debug FWDGT kept when core is halted
\arg DBG_WWDGT_HOLD : debug WWDGT kept when core is halted
\arg DBG_CANx_HOLD (x=0,1): hold CANx counter when core is halted
\arg DBG_I2Cx_HOLD (x=0,1): hold I2Cx smbus when core is halted
\arg DBG_TIMERx_HOLD (x=0,1,2,3,4,5,6): hold TIMERx counter when core is halted
\param[out] none
\retval none
*/
void dbg_periph_enable(dbg_periph_enum dbg_periph)
{
DBG_CTL |= (uint32_t)dbg_periph;
}
/*!
\brief disable peripheral behavior when the mcu is in debug mode
\param[in] dbg_periph: refer to dbg_periph_enum
one or more parameters can be selected which are shown as below:
\arg DBG_FWDGT_HOLD : debug FWDGT kept when core is halted
\arg DBG_WWDGT_HOLD : debug WWDGT kept when core is halted
\arg DBG_CANx_HOLD (x=0,1): hold CAN0 counter when core is halted
\arg DBG_I2Cx_HOLD (x=0,1): hold I2Cx smbus when core is halted
\arg DBG_TIMERx_HOLD (x=0,1,2,3,4,5,6): hold TIMERx counter when core is halted
\param[out] none
\retval none
*/
void dbg_periph_disable(dbg_periph_enum dbg_periph)
{
DBG_CTL &= ~(uint32_t)dbg_periph;
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_dma.c
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/*!
\file gd32vf103_dma.c
\brief DMA driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-10-30, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_dma.h"
#define DMA_WRONG_HANDLE while(1){}
/* check whether peripheral matches channels or not */
static ErrStatus dma_periph_and_channel_check(uint32_t dma_periph, dma_channel_enum channelx);
/*!
\brief deinitialize DMA a channel registers
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel is deinitialized
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_deinit(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
/* disable DMA a channel */
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_CHEN;
/* reset DMA channel registers */
DMA_CHCTL(dma_periph, channelx) = DMA_CHCTL_RESET_VALUE;
DMA_CHCNT(dma_periph, channelx) = DMA_CHCNT_RESET_VALUE;
DMA_CHPADDR(dma_periph, channelx) = DMA_CHPADDR_RESET_VALUE;
DMA_CHMADDR(dma_periph, channelx) = DMA_CHMADDR_RESET_VALUE;
DMA_INTC(dma_periph) |= DMA_FLAG_ADD(DMA_CHINTF_RESET_VALUE, channelx);
}
/*!
\brief initialize the parameters of DMA struct with the default values
\param[in] init_struct: the initialization data needed to initialize DMA channel
\param[out] none
\retval none
*/
void dma_struct_para_init(dma_parameter_struct* init_struct)
{
/* set the DMA struct with the default values */
init_struct->periph_addr = 0U;
init_struct->periph_width = 0U;
init_struct->periph_inc = DMA_PERIPH_INCREASE_DISABLE;
init_struct->memory_addr = 0U;
init_struct->memory_width = 0U;
init_struct->memory_inc = DMA_MEMORY_INCREASE_DISABLE;
init_struct->number = 0U;
init_struct->direction = DMA_PERIPHERAL_TO_MEMORY;
init_struct->priority = DMA_PRIORITY_LOW;
}
/*!
\brief initialize DMA channel
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel is initialized
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] init_struct: the data needed to initialize DMA channel
periph_addr: peripheral base address
periph_width: DMA_PERIPHERAL_WIDTH_8BIT, DMA_PERIPHERAL_WIDTH_16BIT, DMA_PERIPHERAL_WIDTH_32BIT
periph_inc: DMA_PERIPH_INCREASE_ENABLE, DMA_PERIPH_INCREASE_DISABLE
memory_addr: memory base address
memory_width: DMA_MEMORY_WIDTH_8BIT, DMA_MEMORY_WIDTH_16BIT, DMA_MEMORY_WIDTH_32BIT
memory_inc: DMA_MEMORY_INCREASE_ENABLE, DMA_MEMORY_INCREASE_DISABLE
direction: DMA_PERIPHERAL_TO_MEMORY, DMA_MEMORY_TO_PERIPHERAL
number: the number of remaining data to be transferred by the DMA
priority: DMA_PRIORITY_LOW, DMA_PRIORITY_MEDIUM, DMA_PRIORITY_HIGH, DMA_PRIORITY_ULTRA_HIGH
\param[out] none
\retval none
*/
void dma_init(uint32_t dma_periph, dma_channel_enum channelx, dma_parameter_struct* init_struct)
{
uint32_t ctl;
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
/* configure peripheral base address */
DMA_CHPADDR(dma_periph, channelx) = init_struct->periph_addr;
/* configure memory base address */
DMA_CHMADDR(dma_periph, channelx) = init_struct->memory_addr;
/* configure the number of remaining data to be transferred */
DMA_CHCNT(dma_periph, channelx) = (init_struct->number & DMA_CHANNEL_CNT_MASK);
/* configure peripheral transfer width,memory transfer width and priority */
ctl = DMA_CHCTL(dma_periph, channelx);
ctl &= ~(DMA_CHXCTL_PWIDTH | DMA_CHXCTL_MWIDTH | DMA_CHXCTL_PRIO);
ctl |= (init_struct->periph_width | init_struct->memory_width | init_struct->priority);
DMA_CHCTL(dma_periph, channelx) = ctl;
/* configure peripheral increasing mode */
if(DMA_PERIPH_INCREASE_ENABLE == init_struct->periph_inc){
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_PNAGA;
}else{
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_PNAGA;
}
/* configure memory increasing mode */
if(DMA_MEMORY_INCREASE_ENABLE == init_struct->memory_inc){
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_MNAGA;
}else{
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_MNAGA;
}
/* configure the direction of data transfer */
if(DMA_PERIPHERAL_TO_MEMORY == init_struct->direction){
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_DIR;
}else{
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_DIR;
}
}
/*!
\brief enable DMA circulation mode
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_circulation_enable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_CMEN;
}
/*!
\brief disable DMA circulation mode
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_circulation_disable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_CMEN;
}
/*!
\brief enable memory to memory mode
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_to_memory_enable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_M2M;
}
/*!
\brief disable memory to memory mode
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_to_memory_disable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_M2M;
}
/*!
\brief enable DMA channel
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_channel_enable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_CHEN;
}
/*!
\brief disable DMA channel
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_channel_disable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_CHEN;
}
/*!
\brief set DMA peripheral base address
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to set peripheral base address
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] address: peripheral base address
\param[out] none
\retval none
*/
void dma_periph_address_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t address)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHPADDR(dma_periph, channelx) = address;
}
/*!
\brief set DMA memory base address
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to set memory base address
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] address: memory base address
\param[out] none
\retval none
*/
void dma_memory_address_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t address)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHMADDR(dma_periph, channelx) = address;
}
/*!
\brief set the number of remaining data to be transferred by the DMA
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to set number
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] number: the number of remaining data to be transferred by the DMA
\param[out] none
\retval none
*/
void dma_transfer_number_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t number)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCNT(dma_periph, channelx) = (number & DMA_CHANNEL_CNT_MASK);
}
/*!
\brief get the number of remaining data to be transferred by the DMA
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to set number
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval uint32_t: the number of remaining data to be transferred by the DMA
*/
uint32_t dma_transfer_number_get(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
return (uint32_t)DMA_CHCNT(dma_periph, channelx);
}
/*!
\brief configure priority level of DMA channel
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] priority: priority Level of this channel
only one parameter can be selected which is shown as below:
\arg DMA_PRIORITY_LOW: low priority
\arg DMA_PRIORITY_MEDIUM: medium priority
\arg DMA_PRIORITY_HIGH: high priority
\arg DMA_PRIORITY_ULTRA_HIGH: ultra high priority
\param[out] none
\retval none
*/
void dma_priority_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t priority)
{
uint32_t ctl;
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
/* acquire DMA_CHxCTL register */
ctl = DMA_CHCTL(dma_periph, channelx);
/* assign regiser */
ctl &= ~DMA_CHXCTL_PRIO;
ctl |= priority;
DMA_CHCTL(dma_periph, channelx) = ctl;
}
/*!
\brief configure transfer data size of memory
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] mwidth: transfer data width of memory
only one parameter can be selected which is shown as below:
\arg DMA_MEMORY_WIDTH_8BIT: transfer data width of memory is 8-bit
\arg DMA_MEMORY_WIDTH_16BIT: transfer data width of memory is 16-bit
\arg DMA_MEMORY_WIDTH_32BIT: transfer data width of memory is 32-bit
\param[out] none
\retval none
*/
void dma_memory_width_config(uint32_t dma_periph, dma_channel_enum channelx, uint32_t mwidth)
{
uint32_t ctl;
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
/* acquire DMA_CHxCTL register */
ctl = DMA_CHCTL(dma_periph, channelx);
/* assign regiser */
ctl &= ~DMA_CHXCTL_MWIDTH;
ctl |= mwidth;
DMA_CHCTL(dma_periph, channelx) = ctl;
}
/*!
\brief configure transfer data size of peripheral
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] pwidth: transfer data width of peripheral
only one parameter can be selected which is shown as below:
\arg DMA_PERIPHERAL_WIDTH_8BIT: transfer data width of peripheral is 8-bit
\arg DMA_PERIPHERAL_WIDTH_16BIT: transfer data width of peripheral is 16-bit
\arg DMA_PERIPHERAL_WIDTH_32BIT: transfer data width of peripheral is 32-bit
\param[out] none
\retval none
*/
void dma_periph_width_config (uint32_t dma_periph, dma_channel_enum channelx, uint32_t pwidth)
{
uint32_t ctl;
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
/* acquire DMA_CHxCTL register */
ctl = DMA_CHCTL(dma_periph, channelx);
/* assign regiser */
ctl &= ~DMA_CHXCTL_PWIDTH;
ctl |= pwidth;
DMA_CHCTL(dma_periph, channelx) = ctl;
}
/*!
\brief enable next address increasement algorithm of memory
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_increase_enable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_MNAGA;
}
/*!
\brief disable next address increasement algorithm of memory
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_increase_disable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_MNAGA;
}
/*!
\brief enable next address increasement algorithm of peripheral
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_periph_increase_enable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_PNAGA;
}
/*!
\brief disable next address increasement algorithm of peripheral
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_periph_increase_disable(uint32_t dma_periph, dma_channel_enum channelx)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_PNAGA;
}
/*!
\brief configure the direction of data transfer on the channel
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] direction: specify the direction of data transfer
only one parameter can be selected which is shown as below:
\arg DMA_PERIPHERAL_TO_MEMORY: read from peripheral and write to memory
\arg DMA_MEMORY_TO_PERIPHERAL: read from memory and write to peripheral
\param[out] none
\retval none
*/
void dma_transfer_direction_config(uint32_t dma_periph, dma_channel_enum channelx, uint8_t direction)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
if(DMA_PERIPHERAL_TO_MEMORY == direction){
DMA_CHCTL(dma_periph, channelx) &= ~DMA_CHXCTL_DIR;
} else {
DMA_CHCTL(dma_periph, channelx) |= DMA_CHXCTL_DIR;
}
}
/*!
\brief check DMA flag is set or not
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to get flag
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_FLAG_G: global interrupt flag of channel
\arg DMA_FLAG_FTF: full transfer finish flag of channel
\arg DMA_FLAG_HTF: half transfer finish flag of channel
\arg DMA_FLAG_ERR: error flag of channel
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus dma_flag_get(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag)
{
FlagStatus reval;
if(RESET != (DMA_INTF(dma_periph) & DMA_FLAG_ADD(flag, channelx))){
reval = SET;
}else{
reval = RESET;
}
return reval;
}
/*!
\brief clear DMA a channel flag
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to clear flag
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_FLAG_G: global interrupt flag of channel
\arg DMA_FLAG_FTF: full transfer finish flag of channel
\arg DMA_FLAG_HTF: half transfer finish flag of channel
\arg DMA_FLAG_ERR: error flag of channel
\param[out] none
\retval none
*/
void dma_flag_clear(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag)
{
DMA_INTC(dma_periph) |= DMA_FLAG_ADD(flag, channelx);
}
/*!
\brief check DMA flag and interrupt enable bit is set or not
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to get flag
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_INT_FLAG_FTF: full transfer finish interrupt flag of channel
\arg DMA_INT_FLAG_HTF: half transfer finish interrupt flag of channel
\arg DMA_INT_FLAG_ERR: error interrupt flag of channel
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus dma_interrupt_flag_get(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag)
{
uint32_t interrupt_enable = 0U, interrupt_flag = 0U;
switch(flag){
case DMA_INT_FLAG_FTF:
/* check whether the full transfer finish interrupt flag is set and enabled */
interrupt_flag = DMA_INTF(dma_periph) & DMA_FLAG_ADD(flag, channelx);
interrupt_enable = DMA_CHCTL(dma_periph, channelx) & DMA_CHXCTL_FTFIE;
break;
case DMA_INT_FLAG_HTF:
/* check whether the half transfer finish interrupt flag is set and enabled */
interrupt_flag = DMA_INTF(dma_periph) & DMA_FLAG_ADD(flag, channelx);
interrupt_enable = DMA_CHCTL(dma_periph, channelx) & DMA_CHXCTL_HTFIE;
break;
case DMA_INT_FLAG_ERR:
/* check whether the error interrupt flag is set and enabled */
interrupt_flag = DMA_INTF(dma_periph) & DMA_FLAG_ADD(flag, channelx);
interrupt_enable = DMA_CHCTL(dma_periph, channelx) & DMA_CHXCTL_ERRIE;
break;
default:
DMA_WRONG_HANDLE
}
/* when the interrupt flag is set and enabled, return SET */
if(interrupt_flag && interrupt_enable){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear DMA a channel flag
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel to clear flag
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_INT_FLAG_G: global interrupt flag of channel
\arg DMA_INT_FLAG_FTF: full transfer finish interrupt flag of channel
\arg DMA_INT_FLAG_HTF: half transfer finish interrupt flag of channel
\arg DMA_INT_FLAG_ERR: error interrupt flag of channel
\param[out] none
\retval none
*/
void dma_interrupt_flag_clear(uint32_t dma_periph, dma_channel_enum channelx, uint32_t flag)
{
DMA_INTC(dma_periph) |= DMA_FLAG_ADD(flag, channelx);
}
/*!
\brief enable DMA interrupt
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] source: specify which interrupt to enbale
one or more parameters can be selected which are shown as below
\arg DMA_INT_FTF: channel full transfer finish interrupt
\arg DMA_INT_HTF: channel half transfer finish interrupt
\arg DMA_INT_ERR: channel error interrupt
\param[out] none
\retval none
*/
void dma_interrupt_enable(uint32_t dma_periph, dma_channel_enum channelx, uint32_t source)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) |= source;
}
/*!
\brief disable DMA interrupt
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA0: DMA_CHx(x=0..6), DMA1: DMA_CHx(x=0..4)
\param[in] source: specify which interrupt to disbale
one or more parameters can be selected which are shown as below
\arg DMA_INT_FTF: channel full transfer finish interrupt
\arg DMA_INT_HTF: channel half transfer finish interrupt
\arg DMA_INT_ERR: channel error interrupt
\param[out] none
\retval none
*/
void dma_interrupt_disable(uint32_t dma_periph, dma_channel_enum channelx, uint32_t source)
{
if(ERROR == dma_periph_and_channel_check(dma_periph, channelx)){
DMA_WRONG_HANDLE
}
DMA_CHCTL(dma_periph, channelx) &= ~source;
}
/*!
\brief check whether peripheral and channels match
\param[in] dma_periph: DMAx(x=0,1)
\arg DMAx(x=0,1)
\param[in] channelx: specify which DMA channel
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..6)
\param[out] none
\retval none
*/
static ErrStatus dma_periph_and_channel_check(uint32_t dma_periph, dma_channel_enum channelx)
{
ErrStatus val = SUCCESS;
if(DMA1 == dma_periph){
/* for DMA1, the channel is from DMA_CH0 to DMA_CH4 */
if(channelx > DMA_CH4){
val = ERROR;
}
}
return val;
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_eclic.c
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/*!
\file gd32vf103_eclic.c
\brief ECLIC(Enhancement Core-Local Interrupt Controller) driver
\version 2019-06-05, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_eclic.h"
#include "riscv_encoding.h"
#define REG_DBGMCU2 ((uint32_t)0xE0042008)
#define REG_DBGMCU2EN ((uint32_t)0xE004200C)
/*!
\brief enable the global interrupt
\param[in] none
\param[out] none
\retval none
*/
void eclic_global_interrupt_enable(void)
{
/* set machine interrupt enable bit */
set_csr(mstatus, MSTATUS_MIE);
}
/*!
\brief disable the global interrupt
\param[in] none
\param[out] none
\retval none
*/
void eclic_global_interrupt_disable(void)
{
/* clear machine interrupt enable bit */
clear_csr(mstatus, MSTATUS_MIE);
}
/*!
\brief set the priority group
\param[in] prigroup: specify the priority group
\arg ECLIC_PRIGROUP_LEVEL0_PRIO4
\arg ECLIC_PRIGROUP_LEVEL1_PRIO3
\arg ECLIC_PRIGROUP_LEVEL2_PRIO2
\arg ECLIC_PRIGROUP_LEVEL3_PRIO1
\arg ECLIC_PRIGROUP_LEVEL4_PRIO0
\param[out] none
\retval none
*/
void eclic_priority_group_set(uint32_t prigroup)
{
eclic_set_nlbits(prigroup);
}
/*!
\brief enable the interrupt request
\param[in] source: interrupt request, detailed in IRQn_Type
\param[in] level: the level needed to set (maximum is 15, refer to the priority group)
\param[in] priority: the priority needed to set (maximum is 15, refer to the priority group)
\param[out] none
\retval none
*/
void eclic_irq_enable(uint32_t source, uint8_t level, uint8_t priority)
{
eclic_enable_interrupt(source);
eclic_set_irq_lvl_abs(source, level);
eclic_set_irq_priority(source, priority);
}
/*!
\brief disable the interrupt request
\param[in] source: interrupt request, detailed in IRQn_Type
\param[out] none
\retval none
*/
void eclic_irq_disable(uint32_t source)
{
eclic_disable_interrupt(source);
}
/*!
\brief reset system
\param[in] none
\param[out] none
\retval none
*/
void eclic_system_reset(void)
{
REG32(REG_DBGMCU2EN) = 0x4b5a6978;
REG32(REG_DBGMCU2) = 0x1;
}
/*!
\brief send event(SEV)
\param[in] none
\param[out] none
\retval none
*/
void eclic_send_event(void)
{
set_csr(0x812, 0x1);
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_exmc.c
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/*!
\file gd32vf103_exmc.c
\brief EXMC driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_exmc.h"
/* EXMC bank0 register reset value */
#define BANK0_SNCTL0_REGION_RESET ((uint32_t)0x000030DAU)
#define BANK0_SNTCFG_RESET ((uint32_t)0x0FFFFFFFU)
/* EXMC register bit offset */
#define SNCTL_NRMUX_OFFSET ((uint32_t)1U)
#define SNCTL_WREN_OFFSET ((uint32_t)12U)
#define SNCTL_NRWTEN_OFFSET ((uint32_t)13U)
#define SNCTL_ASYNCWAIT_OFFSET ((uint32_t)15U)
#define SNTCFG_AHLD_OFFSET ((uint32_t)4U)
#define SNTCFG_DSET_OFFSET ((uint32_t)8U)
#define SNTCFG_BUSLAT_OFFSET ((uint32_t)16U)
/*!
\brief deinitialize EXMC NOR/SRAM region
\param[in] norsram_region: select the region of bank0
\arg EXMC_BANK0_NORSRAM_REGIONx(x=0)
\param[out] none
\retval none
*/
void exmc_norsram_deinit(uint32_t norsram_region)
{
/* reset the registers */
if(EXMC_BANK0_NORSRAM_REGION0 == norsram_region){
EXMC_SNCTL(norsram_region) = BANK0_SNCTL0_REGION_RESET;
}
EXMC_SNTCFG(norsram_region) = BANK0_SNTCFG_RESET;
}
/*!
\brief initialize the structure exmc_norsram_parameter_struct
\param[in] none
\param[out] exmc_norsram_init_struct: the initialized structure exmc_norsram_parameter_struct pointer
\retval none
*/
void exmc_norsram_struct_para_init(exmc_norsram_parameter_struct* exmc_norsram_init_struct)
{
/* configure the structure with default value */
exmc_norsram_init_struct->norsram_region = EXMC_BANK0_NORSRAM_REGION0;
exmc_norsram_init_struct->address_data_mux = ENABLE;
exmc_norsram_init_struct->memory_type = EXMC_MEMORY_TYPE_SRAM;
exmc_norsram_init_struct->databus_width = EXMC_NOR_DATABUS_WIDTH_16B;
exmc_norsram_init_struct->nwait_polarity = EXMC_NWAIT_POLARITY_LOW;
exmc_norsram_init_struct->memory_write = ENABLE;
exmc_norsram_init_struct->nwait_signal = ENABLE;
exmc_norsram_init_struct->asyn_wait = DISABLE;
/* read/write timing configure */
exmc_norsram_init_struct->read_write_timing->asyn_address_setuptime = 0xFU;
exmc_norsram_init_struct->read_write_timing->asyn_address_holdtime = 0xFU;
exmc_norsram_init_struct->read_write_timing->asyn_data_setuptime = 0xFFU;
exmc_norsram_init_struct->read_write_timing->bus_latency = 0xFU;
}
/*!
\brief initialize EXMC NOR/SRAM region
\param[in] exmc_norsram_parameter_struct: configure the EXMC NOR/SRAM parameter
norsram_region: EXMC_BANK0_NORSRAM_REGIONx,x=0
asyn_wait: ENABLE or DISABLE
nwait_signal: ENABLE or DISABLE
memory_write: ENABLE or DISABLE
nwait_polarity: EXMC_NWAIT_POLARITY_LOW,EXMC_NWAIT_POLARITY_HIGH
databus_width: EXMC_NOR_DATABUS_WIDTH_8B,EXMC_NOR_DATABUS_WIDTH_16B
memory_type: EXMC_MEMORY_TYPE_SRAM,EXMC_MEMORY_TYPE_PSRAM,EXMC_MEMORY_TYPE_NOR
address_data_mux: ENABLE
read_write_timing: structure exmc_norsram_timing_parameter_struct set the time
\param[out] none
\retval none
*/
void exmc_norsram_init(exmc_norsram_parameter_struct* exmc_norsram_init_struct)
{
uint32_t snctl = 0x00000000U, sntcfg = 0x00000000U;
/* get the register value */
snctl = EXMC_SNCTL(exmc_norsram_init_struct->norsram_region);
/* clear relative bits */
snctl &= ((uint32_t)~(EXMC_SNCTL_NREN | EXMC_SNCTL_NRTP | EXMC_SNCTL_NRW | EXMC_SNCTL_NRWTPOL |
EXMC_SNCTL_WREN | EXMC_SNCTL_NRWTEN | EXMC_SNCTL_ASYNCWAIT | EXMC_SNCTL_NRMUX));
snctl |= (uint32_t)(exmc_norsram_init_struct->address_data_mux << SNCTL_NRMUX_OFFSET) |
exmc_norsram_init_struct->memory_type |
exmc_norsram_init_struct->databus_width |
exmc_norsram_init_struct->nwait_polarity |
(exmc_norsram_init_struct->memory_write << SNCTL_WREN_OFFSET) |
(exmc_norsram_init_struct->nwait_signal << SNCTL_NRWTEN_OFFSET) |
(exmc_norsram_init_struct->asyn_wait << SNCTL_ASYNCWAIT_OFFSET);
sntcfg = (uint32_t)((exmc_norsram_init_struct->read_write_timing->asyn_address_setuptime - 1U ) & EXMC_SNTCFG_ASET )|
(((exmc_norsram_init_struct->read_write_timing->asyn_address_holdtime - 1U ) << SNTCFG_AHLD_OFFSET ) & EXMC_SNTCFG_AHLD ) |
(((exmc_norsram_init_struct->read_write_timing->asyn_data_setuptime - 1U ) << SNTCFG_DSET_OFFSET ) & EXMC_SNTCFG_DSET ) |
(((exmc_norsram_init_struct->read_write_timing->bus_latency - 1U ) << SNTCFG_BUSLAT_OFFSET ) & EXMC_SNTCFG_BUSLAT );
/* nor flash access enable */
if(EXMC_MEMORY_TYPE_NOR == exmc_norsram_init_struct->memory_type){
snctl |= (uint32_t)EXMC_SNCTL_NREN;
}
/* configure the registers */
EXMC_SNCTL(exmc_norsram_init_struct->norsram_region) = snctl;
EXMC_SNTCFG(exmc_norsram_init_struct->norsram_region) = sntcfg;
}
/*!
\brief enable EXMC NOR/PSRAM bank region
\param[in] norsram_region: specify the region of NOR/PSRAM bank
\arg EXMC_BANK0_NORSRAM_REGIONx(x=0)
\param[out] none
\retval none
*/
void exmc_norsram_enable(uint32_t norsram_region)
{
EXMC_SNCTL(norsram_region) |= (uint32_t)EXMC_SNCTL_NRBKEN;
}
/*!
\brief disable EXMC NOR/PSRAM bank region
\param[in] norsram_region: specify the region of NOR/PSRAM bank
\arg EXMC_BANK0_NORSRAM_REGIONx(x=0)
\param[out] none
\retval none
*/
void exmc_norsram_disable(uint32_t norsram_region)
{
EXMC_SNCTL(norsram_region) &= ~(uint32_t)EXMC_SNCTL_NRBKEN;
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_exti.c
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/*!
\file gd32vf103_exti.c
\brief EXTI driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_exti.h"
#define EXTI_REG_RESET_VALUE ((uint32_t)0x00000000U)
/*!
\brief deinitialize the EXTI
\param[in] none
\param[out] none
\retval none
*/
void exti_deinit(void)
{
/* reset the value of all the EXTI registers */
EXTI_INTEN = EXTI_REG_RESET_VALUE;
EXTI_EVEN = EXTI_REG_RESET_VALUE;
EXTI_RTEN = EXTI_REG_RESET_VALUE;
EXTI_FTEN = EXTI_REG_RESET_VALUE;
EXTI_SWIEV = EXTI_REG_RESET_VALUE;
}
/*!
\brief initialize the EXTI
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[in] mode: interrupt or event mode, refer to exti_mode_enum
only one parameter can be selected which is shown as below:
\arg EXTI_INTERRUPT: interrupt mode
\arg EXTI_EVENT: event mode
\param[in] trig_type: trigger type, refer to exti_trig_type_enum
only one parameter can be selected which is shown as below:
\arg EXTI_TRIG_RISING: rising edge trigger
\arg EXTI_TRIG_FALLING: falling edge trigger
\arg EXTI_TRIG_BOTH: rising edge and falling edge trigger
\arg EXTI_TRIG_NONE: without rising edge or falling edge trigger
\param[out] none
\retval none
*/
void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type)
{
/* reset the EXTI line x */
EXTI_INTEN &= ~(uint32_t) linex;
EXTI_EVEN &= ~(uint32_t) linex;
EXTI_RTEN &= ~(uint32_t) linex;
EXTI_FTEN &= ~(uint32_t) linex;
/* set the EXTI mode and enable the interrupts or events from EXTI line x */
switch (mode) {
case EXTI_INTERRUPT:
EXTI_INTEN |= (uint32_t) linex;
break;
case EXTI_EVENT:
EXTI_EVEN |= (uint32_t) linex;
break;
default:
break;
}
/* set the EXTI trigger type */
switch (trig_type) {
case EXTI_TRIG_RISING:
EXTI_RTEN |= (uint32_t) linex;
EXTI_FTEN &= ~(uint32_t) linex;
break;
case EXTI_TRIG_FALLING:
EXTI_RTEN &= ~(uint32_t) linex;
EXTI_FTEN |= (uint32_t) linex;
break;
case EXTI_TRIG_BOTH:
EXTI_RTEN |= (uint32_t) linex;
EXTI_FTEN |= (uint32_t) linex;
break;
case EXTI_TRIG_NONE:
default:
break;
}
}
/*!
\brief enable the interrupts from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_interrupt_enable(exti_line_enum linex)
{
EXTI_INTEN |= (uint32_t) linex;
}
/*!
\brief enable the events from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_event_enable(exti_line_enum linex)
{
EXTI_EVEN |= (uint32_t) linex;
}
/*!
\brief disable the interrupt from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_interrupt_disable(exti_line_enum linex)
{
EXTI_INTEN &= ~(uint32_t) linex;
}
/*!
\brief disable the events from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_event_disable(exti_line_enum linex)
{
EXTI_EVEN &= ~(uint32_t) linex;
}
/*!
\brief get EXTI lines flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval FlagStatus: status of flag (RESET or SET)
*/
FlagStatus exti_flag_get(exti_line_enum linex)
{
if (RESET != (EXTI_PD & (uint32_t) linex)) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear EXTI lines pending flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_flag_clear(exti_line_enum linex)
{
EXTI_PD = (uint32_t) linex;
}
/*!
\brief get EXTI lines flag when the interrupt flag is set
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval FlagStatus: status of flag (RESET or SET)
*/
FlagStatus exti_interrupt_flag_get(exti_line_enum linex)
{
uint32_t flag_left, flag_right;
flag_left = EXTI_PD & (uint32_t) linex;
flag_right = EXTI_INTEN & (uint32_t) linex;
if ((RESET != flag_left) && (RESET != flag_right)) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear EXTI lines pending flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_interrupt_flag_clear(exti_line_enum linex)
{
EXTI_PD = (uint32_t) linex;
}
/*!
\brief enable EXTI software interrupt event
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_software_interrupt_enable(exti_line_enum linex)
{
EXTI_SWIEV |= (uint32_t) linex;
}
/*!
\brief disable EXTI software interrupt event
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..18): EXTI line x
\param[out] none
\retval none
*/
void exti_software_interrupt_disable(exti_line_enum linex)
{
EXTI_SWIEV &= ~(uint32_t) linex;
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_fmc.c
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/*!
\file gd32vf103_fmc.c
\brief FMC driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-09-18, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_fmc.h"
/*!
\brief set the FMC wait state counter
\param[in] wscnt£ºwait state counter value
\arg WS_WSCNT_0: FMC 0 wait state
\arg WS_WSCNT_1: FMC 1 wait state
\arg WS_WSCNT_2: FMC 2 wait state
\param[out] none
\retval none
*/
void fmc_wscnt_set(uint32_t wscnt)
{
uint32_t reg;
reg = FMC_WS;
/* set the wait state counter value */
reg &= ~FMC_WS_WSCNT;
FMC_WS = (reg | wscnt);
}
/*!
\brief unlock the main FMC operation
\param[in] none
\param[out] none
\retval none
*/
void fmc_unlock(void)
{
if((RESET != (FMC_CTL & FMC_CTL_LK))){
/* write the FMC unlock key */
FMC_KEY = UNLOCK_KEY0;
FMC_KEY = UNLOCK_KEY1;
}
}
/*!
\brief lock the main FMC operation
\param[in] none
\param[out] none
\retval none
*/
void fmc_lock(void)
{
/* set the LK bit */
FMC_CTL |= FMC_CTL_LK;
}
/*!
\brief FMC erase page
\param[in] page_address: the page address to be erased.
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum fmc_page_erase(uint32_t page_address)
{
fmc_state_enum fmc_state;
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* if the last operation is completed, start page erase */
if (FMC_READY == fmc_state) {
FMC_CTL |= FMC_CTL_PER;
FMC_ADDR = page_address;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the PER bit */
FMC_CTL &= ~FMC_CTL_PER;
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief FMC erase whole chip
\param[in] none
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum fmc_mass_erase(void)
{
fmc_state_enum fmc_state;
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* start whole chip erase */
FMC_CTL |= FMC_CTL_MER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the MER bit */
FMC_CTL &= ~FMC_CTL_MER;
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief FMC program a word at the corresponding address
\param[in] address: address to program
\param[in] data: word to program
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum fmc_word_program(uint32_t address, uint32_t data)
{
fmc_state_enum fmc_state = FMC_READY;
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* set the PG bit to start program */
FMC_CTL |= FMC_CTL_PG;
REG32(address) = data;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the PG bit */
FMC_CTL &= ~FMC_CTL_PG;
}
/* return the FMC state */
return fmc_state;
}
/*
\brief FMC program a half word at the corresponding address
\param[in] address: address to program
\param[in] data: halfword to program
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum fmc_halfword_program(uint32_t address, uint16_t data)
{
fmc_state_enum fmc_state = FMC_READY;
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* set the PG bit to start program */
FMC_CTL |= FMC_CTL_PG;
REG16(address) = data;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the PG bit */
FMC_CTL &= ~FMC_CTL_PG;
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief unlock the option byte operation
\param[in] none
\param[out] none
\retval none
*/
void ob_unlock(void)
{
if(RESET == (FMC_CTL & FMC_CTL_OBWEN)){
/* write the FMC key */
FMC_OBKEY = UNLOCK_KEY0;
FMC_OBKEY = UNLOCK_KEY1;
}
/* wait until OBWEN bit is set by hardware */
while (RESET == (FMC_CTL & FMC_CTL_OBWEN)){
}
}
/*!
\brief lock the option byte operation
\param[in] none
\param[out] none
\retval none
*/
void ob_lock(void)
{
/* reset the OBWEN bit */
FMC_CTL &= ~FMC_CTL_OBWEN;
}
/*!
\brief erase the FMC option byte
unlock the FMC_CTL and option byte before calling this function
\param[in] none
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum ob_erase(void)
{
uint16_t temp_spc = FMC_NSPC;
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* check the option byte security protection value */
if(RESET != ob_spc_get()){
temp_spc = FMC_USPC;
}
if(FMC_READY == fmc_state){
/* start erase the option byte */
FMC_CTL |= FMC_CTL_OBER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
/* set the OBPG bit */
FMC_CTL |= FMC_CTL_OBPG;
/* no security protection */
OB_SPC = (uint16_t) temp_spc;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if (FMC_TOERR != fmc_state) {
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}else{
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief enable write protection
\param[in] ob_wp: specify sector to be write protected, set the bit to 1 if
you want to protect the corresponding pages. meanwhile, sector
macro could used to set specific sector write protected.
one or more parameters can be selected which are shown as below:
\arg OB_WP_x(x = 0..31): write protect specify sector
\arg OB_WP_ALL: write protect all sector
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum ob_write_protection_enable(uint32_t ob_wp)
{
uint16_t temp_wp0, temp_wp1, temp_wp2, temp_wp3;
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
ob_wp = (uint32_t) (~ob_wp);
temp_wp0 = (uint16_t) (ob_wp & OB_WP0_WP0);
temp_wp1 = (uint16_t) ((ob_wp & OB_WP1_WP1) >> 8U);
temp_wp2 = (uint16_t) ((ob_wp & OB_WP2_WP2) >> 16U);
temp_wp3 = (uint16_t) ((ob_wp & OB_WP3_WP3) >> 24U);
if(FMC_READY == fmc_state){
/* set the OBPG bit*/
FMC_CTL |= FMC_CTL_OBPG;
if(0xFFU != temp_wp0){
OB_WP0 = temp_wp0;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
}
if((FMC_READY == fmc_state) && (0xFFU != temp_wp1)){
OB_WP1 = temp_wp1;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
}
if((FMC_READY == fmc_state) && (0xFFU != temp_wp2)){
OB_WP2 = temp_wp2;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
}
if((FMC_READY == fmc_state) && (0xFFU != temp_wp3)){
OB_WP3 = temp_wp3;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
}
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief configure security protection
\param[in] ob_spc: specify security protection
only one parameter can be selected which is shown as below:
\arg FMC_NSPC: no security protection
\arg FMC_USPC: under security protection
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum ob_security_protection_config(uint8_t ob_spc)
{
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
FMC_CTL |= FMC_CTL_OBER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
/* start the option byte program */
FMC_CTL |= FMC_CTL_OBPG;
OB_SPC = (uint16_t) ob_spc;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if (FMC_TOERR != fmc_state) {
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}else{
if (FMC_TOERR != fmc_state) {
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief program the FMC user option byte
\param[in] ob_fwdgt: option byte watchdog value
\arg OB_FWDGT_SW: software free watchdog
\arg OB_FWDGT_HW: hardware free watchdog
\param[in] ob_deepsleep: option byte deepsleep reset value
\arg OB_DEEPSLEEP_NRST: no reset when entering deepsleep mode
\arg OB_DEEPSLEEP_RST: generate a reset instead of entering deepsleep mode
\param[in] ob_stdby:option byte standby reset value
\arg OB_STDBY_NRST: no reset when entering standby mode
\arg OB_STDBY_RST: generate a reset instead of entering standby mode
\param[in] ob_boot: specifies the option byte boot bank value
\arg OB_BOOT_B0: boot from bank0
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum ob_user_write(uint8_t ob_fwdgt, uint8_t ob_deepsleep, uint8_t ob_stdby, uint8_t ob_boot)
{
fmc_state_enum fmc_state = FMC_READY;
uint8_t temp;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* set the OBPG bit*/
FMC_CTL |= FMC_CTL_OBPG;
temp = ((uint8_t)((uint8_t)((uint8_t)(ob_boot | ob_fwdgt) | ob_deepsleep) | ob_stdby) | OB_USER_MASK);
OB_USER = (uint16_t) temp;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief program the FMC data option byte
\param[in] address: the option bytes address to be programmed
\param[in] data: the byte to be programmed
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum ob_data_program(uint32_t address, uint8_t data)
{
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* set the OBPG bit */
FMC_CTL |= FMC_CTL_OBPG;
REG16(address) = data;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief get OB_USER in register FMC_OBSTAT
\param[in] none
\param[out] none
\retval the FMC user option byte values
*/
uint8_t ob_user_get(void)
{
/* return the FMC user option byte value */
return (uint8_t) (FMC_OBSTAT >> 2U);
}
/*!
\brief get OB_DATA in register FMC_OBSTAT
\param[in] none
\param[out] none
\retval ob_data
*/
uint16_t ob_data_get(void)
{
return (uint16_t) (FMC_OBSTAT >> 10U);
}
/*!
\brief get the FMC option byte write protection
\param[in] none
\param[out] none
\retval the FMC write protection option byte value
*/
uint32_t ob_write_protection_get(void)
{
/* return the FMC write protection option byte value */
return FMC_WP;
}
/*!
\brief get FMC option byte security protection state
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus ob_spc_get(void)
{
FlagStatus spc_state = RESET;
if(RESET != (FMC_OBSTAT & FMC_OBSTAT_SPC)){
spc_state = SET;
}else{
spc_state = RESET;
}
return spc_state;
}
/*!
\brief enable FMC interrupt
\param[in] interrupt: the FMC interrupt source
only one parameter can be selected which is shown as below:
\arg FMC_INT_END: enable FMC end of program interrupt
\arg FMC_INT_ERR: enable FMC error interrupt
\param[out] none
\retval none
*/
void fmc_interrupt_enable(uint32_t interrupt)
{
FMC_REG_VAL(interrupt) |= BIT(FMC_BIT_POS(interrupt));
}
/*!
\brief disable FMC interrupt
\param[in] interrupt: the FMC interrupt source
only one parameter can be selected which is shown as below:
\arg FMC_INT_END: enable FMC end of program interrupt
\arg FMC_INT_ERR: enable FMC error interrupt
\param[out] none
\retval none
*/
void fmc_interrupt_disable(uint32_t interrupt)
{
FMC_REG_VAL(interrupt) &= ~BIT(FMC_BIT_POS(interrupt));
}
/*!
\brief check flag is set or not
\param[in] flag: check FMC flag
only one parameter can be selected which is shown as below:
\arg FMC_FLAG_BUSY: FMC busy flag bit
\arg FMC_FLAG_PGERR: FMC operation error flag bit
\arg FMC_FLAG_WPERR: FMC erase/program protection error flag bit
\arg FMC_FLAG_END: FMC end of operation flag bit
\arg FMC_FLAG_OBERR: FMC option byte read error flag bit
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus fmc_flag_get(uint32_t flag)
{
if(RESET != (FMC_REG_VAL(flag) & BIT(FMC_BIT_POS(flag)))){
return SET;
} else {
return RESET;
}
}
/*!
\brief clear the FMC flag
\param[in] flag: clear FMC flag
only one parameter can be selected which is shown as below:
\arg FMC_FLAG_PGERR: FMC operation error flag bit
\arg FMC_FLAG_WPERR: FMC erase/program protection error flag bit
\arg FMC_FLAG_END: FMC end of operation flag bit
\param[out] none
\retval none
*/
void fmc_flag_clear(uint32_t flag)
{
FMC_REG_VAL(flag) = (!FMC_REG_VAL(flag)) | BIT(FMC_BIT_POS(flag));
}
/*!
\brief get FMC interrupt flag state
\param[in] flag: FMC interrupt flags, refer to fmc_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg FMC_INT_FLAG_PGERR: FMC operation error interrupt flag bit
\arg FMC_INT_FLAG_WPERR: FMC erase/program protection error interrupt flag bit
\arg FMC_INT_FLAG_END: FMC end of operation interrupt flag bit
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus fmc_interrupt_flag_get(fmc_interrupt_flag_enum flag)
{
FlagStatus ret1 = RESET;
FlagStatus ret2 = RESET;
if(FMC_STAT_REG_OFFSET == FMC_REG_OFFSET_GET(flag)){
/* get the staus of interrupt flag */
ret1 = (FlagStatus) (FMC_REG_VALS(flag) & BIT(FMC_BIT_POS0(flag)));
/* get the staus of interrupt enale bit */
ret2 = (FlagStatus) (FMC_CTL & BIT(FMC_BIT_POS1(flag)));
}
if(ret1 && ret2){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear FMC interrupt flag state
\param[in] flag: FMC interrupt flags, refer to can_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg FMC_INT_FLAG_PGERR: FMC operation error interrupt flag bit
\arg FMC_INT_FLAG_WPERR: FMC erase/program protection error interrupt flag bit
\arg FMC_INT_FLAG_END: FMC end of operation interrupt flag bit
\param[out] none
\retval none
*/
void fmc_interrupt_flag_clear(fmc_interrupt_flag_enum flag)
{
FMC_REG_VALS(flag) |= BIT(FMC_BIT_POS0(flag));
}
/*!
\brief get the FMC state
\param[in] none
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum fmc_state_get(void)
{
fmc_state_enum fmc_state = FMC_READY;
if((uint32_t) 0x00U != (FMC_STAT & FMC_STAT_BUSY)){
fmc_state = FMC_BUSY;
}else{
if((uint32_t) 0x00U != (FMC_STAT & FMC_STAT_WPERR)){
fmc_state = FMC_WPERR;
}else{
if((uint32_t) 0x00U != (FMC_STAT & (FMC_STAT_PGERR))){
fmc_state = FMC_PGERR;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief check whether FMC is ready or not
\param[in] timeout: count of loop
\param[out] none
\retval state of FMC, refer to fmc_state_enum
*/
fmc_state_enum fmc_ready_wait(uint32_t timeout)
{
fmc_state_enum fmc_state = FMC_BUSY;
/* wait for FMC ready */
do{
/* get FMC state */
fmc_state = fmc_state_get();
timeout--;
}while((FMC_BUSY == fmc_state) && (0x00U != timeout));
if(FMC_BUSY == fmc_state){
fmc_state = FMC_TOERR;
}
/* return the FMC state */
return fmc_state;
}

151
RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_fwdgt.c
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/*!
\file gd32vf103_fwdgt.c
\brief FWDGT driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_fwdgt.h"
/* write value to FWDGT_CTL_CMD bit field */
#define CTL_CMD(regval) (BITS(0,15) & ((uint32_t)(regval) << 0))
/* write value to FWDGT_RLD_RLD bit field */
#define RLD_RLD(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
/*!
\brief enable write access to FWDGT_PSC and FWDGT_RLD
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_write_enable(void)
{
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
}
/*!
\brief disable write access to FWDGT_PSC and FWDGT_RLD
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_write_disable(void)
{
FWDGT_CTL = FWDGT_WRITEACCESS_DISABLE;
}
/*!
\brief start the free watchdog timer counter
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_enable(void)
{
FWDGT_CTL = FWDGT_KEY_ENABLE;
}
/*!
\brief reload the counter of FWDGT
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_counter_reload(void)
{
FWDGT_CTL = FWDGT_KEY_RELOAD;
}
/*!
\brief configure counter reload value, and prescaler divider value
\param[in] reload_value: specify reload value(0x0000 - 0x0FFF)
\param[in] prescaler_div: FWDGT prescaler value
only one parameter can be selected which is shown as below:
\arg FWDGT_PSC_DIV4: FWDGT prescaler set to 4
\arg FWDGT_PSC_DIV8: FWDGT prescaler set to 8
\arg FWDGT_PSC_DIV16: FWDGT prescaler set to 16
\arg FWDGT_PSC_DIV32: FWDGT prescaler set to 32
\arg FWDGT_PSC_DIV64: FWDGT prescaler set to 64
\arg FWDGT_PSC_DIV128: FWDGT prescaler set to 128
\arg FWDGT_PSC_DIV256: FWDGT prescaler set to 256
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div)
{
uint32_t timeout = FWDGT_PSC_TIMEOUT;
uint32_t flag_status = RESET;
/* enable write access to FWDGT_PSC,and FWDGT_RLD */
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
/* wait until the PUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_PUD;
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
if((uint32_t)RESET != flag_status){
return ERROR;
}
/* configure FWDGT */
FWDGT_PSC = (uint32_t)prescaler_div;
timeout = FWDGT_RLD_TIMEOUT;
/* wait until the RUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_RUD;
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
if((uint32_t)RESET != flag_status){
return ERROR;
}
FWDGT_RLD = RLD_RLD(reload_value);
/* reload the counter */
FWDGT_CTL = FWDGT_KEY_RELOAD;
return SUCCESS;
}
/*!
\brief get flag state of FWDGT
\param[in] flag: flag to get
only one parameter can be selected which is shown as below:
\arg FWDGT_FLAG_PUD: a write operation to FWDGT_PSC register is on going
\arg FWDGT_FLAG_RUD: a write operation to FWDGT_RLD register is on going
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus fwdgt_flag_get(uint16_t flag)
{
if(FWDGT_STAT & flag){
return SET;
}
return RESET;
}

502
RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_gpio.c
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/*!
\file gd32vf103_gpio.c
\brief GPIO driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_gpio.h"
#define AFIO_EXTI_SOURCE_MASK ((uint8_t)0x03U) /*!< AFIO exti source selection mask*/
#define AFIO_EXTI_SOURCE_FIELDS ((uint8_t)0x04U) /*!< select AFIO exti source registers */
#define LSB_16BIT_MASK ((uint16_t)0xFFFFU) /*!< LSB 16-bit mask */
#define PCF_POSITION_MASK ((uint32_t)0x000F0000U) /*!< AFIO_PCF register position mask */
#define PCF_SWJCFG_MASK ((uint32_t)0xF0FFFFFFU) /*!< AFIO_PCF register SWJCFG mask */
#define PCF_LOCATION1_MASK ((uint32_t)0x00200000U) /*!< AFIO_PCF register location1 mask */
#define PCF_LOCATION2_MASK ((uint32_t)0x00100000U) /*!< AFIO_PCF register location2 mask */
#define AFIO_PCF1_FIELDS ((uint32_t)0x80000000U) /*!< select AFIO_PCF1 register */
#define GPIO_OUTPUT_PORT_OFFSET ((uint32_t)4U) /*!< GPIO event output port offset*/
/*!
\brief reset GPIO port
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[out] none
\retval none
*/
void gpio_deinit(uint32_t gpio_periph)
{
switch (gpio_periph) {
case GPIOA:
/* reset GPIOA */
rcu_periph_reset_enable(RCU_GPIOARST);
rcu_periph_reset_disable(RCU_GPIOARST);
break;
case GPIOB:
/* reset GPIOB */
rcu_periph_reset_enable(RCU_GPIOBRST);
rcu_periph_reset_disable(RCU_GPIOBRST);
break;
case GPIOC:
/* reset GPIOC */
rcu_periph_reset_enable(RCU_GPIOCRST);
rcu_periph_reset_disable(RCU_GPIOCRST);
break;
case GPIOD:
/* reset GPIOD */
rcu_periph_reset_enable(RCU_GPIODRST);
rcu_periph_reset_disable(RCU_GPIODRST);
break;
case GPIOE:
/* reset GPIOE */
rcu_periph_reset_enable(RCU_GPIOERST);
rcu_periph_reset_disable(RCU_GPIOERST);
break;
default:
break;
}
}
/*!
\brief reset alternate function I/O(AFIO)
\param[in] none
\param[out] none
\retval none
*/
void gpio_afio_deinit(void)
{
rcu_periph_reset_enable(RCU_AFRST);
rcu_periph_reset_disable(RCU_AFRST);
}
/*!
\brief GPIO parameter initialization
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] mode: gpio pin mode
only one parameter can be selected which is shown as below:
\arg GPIO_MODE_AIN: analog input mode
\arg GPIO_MODE_IN_FLOATING: floating input mode
\arg GPIO_MODE_IPD: pull-down input mode
\arg GPIO_MODE_IPU: pull-up input mode
\arg GPIO_MODE_OUT_OD: GPIO output with open-drain
\arg GPIO_MODE_OUT_PP: GPIO output with push-pull
\arg GPIO_MODE_AF_OD: AFIO output with open-drain
\arg GPIO_MODE_AF_PP: AFIO output with push-pull
\param[in] speed: gpio output max speed value
only one parameter can be selected which is shown as below:
\arg GPIO_OSPEED_10MHZ: output max speed 10MHz
\arg GPIO_OSPEED_2MHZ: output max speed 2MHz
\arg GPIO_OSPEED_50MHZ: output max speed 50MHz
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_init(uint32_t gpio_periph, uint32_t mode, uint32_t speed,
uint32_t pin)
{
uint16_t i;
uint32_t temp_mode = 0U;
uint32_t reg = 0U;
/* GPIO mode configuration */
temp_mode = (uint32_t) (mode & ((uint32_t) 0x0FU));
/* GPIO speed configuration */
if (((uint32_t) 0x00U) != ((uint32_t) mode & ((uint32_t) 0x10U))) {
/* output mode max speed:10MHz,2MHz,50MHz */
temp_mode |= (uint32_t) speed;
}
/* configure the eight low port pins with GPIO_CTL0 */
for (i = 0U; i < 8U; i++) {
if ((1U << i) & pin) {
reg = GPIO_CTL0(gpio_periph);
/* clear the specified pin mode bits */
reg &= ~GPIO_MODE_MASK(i);
/* set the specified pin mode bits */
reg |= GPIO_MODE_SET(i, temp_mode);
/* set IPD or IPU */
if (GPIO_MODE_IPD == mode) {
/* reset the corresponding OCTL bit */
GPIO_BC(gpio_periph) = (uint32_t) ((1U << i) & pin);
} else {
/* set the corresponding OCTL bit */
if (GPIO_MODE_IPU == mode) {
GPIO_BOP(gpio_periph) = (uint32_t) ((1U << i) & pin);
}
}
/* set GPIO_CTL0 register */
GPIO_CTL0(gpio_periph) = reg;
}
}
/* configure the eight high port pins with GPIO_CTL1 */
for (i = 8U; i < 16U; i++) {
if ((1U << i) & pin) {
reg = GPIO_CTL1(gpio_periph);
/* clear the specified pin mode bits */
reg &= ~GPIO_MODE_MASK(i - 8U);
/* set the specified pin mode bits */
reg |= GPIO_MODE_SET(i - 8U, temp_mode);
/* set IPD or IPU */
if (GPIO_MODE_IPD == mode) {
/* reset the corresponding OCTL bit */
GPIO_BC(gpio_periph) = (uint32_t) ((1U << i) & pin);
} else {
/* set the corresponding OCTL bit */
if (GPIO_MODE_IPU == mode) {
GPIO_BOP(gpio_periph) = (uint32_t) ((1U << i) & pin);
}
}
/* set GPIO_CTL1 register */
GPIO_CTL1(gpio_periph) = reg;
}
}
}
/*!
\brief set GPIO pin
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_bit_set(uint32_t gpio_periph, uint32_t pin)
{
GPIO_BOP(gpio_periph) = (uint32_t) pin;
}
/*!
\brief reset GPIO pin
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_bit_reset(uint32_t gpio_periph, uint32_t pin)
{
GPIO_BC(gpio_periph) = (uint32_t) pin;
}
/*!
\brief write data to the specified GPIO pin
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[in] bit_value: SET or RESET
only one parameter can be selected which is shown as below:
\arg RESET: clear the port pin
\arg SET: set the port pin
\param[out] none
\retval none
*/
void gpio_bit_write(uint32_t gpio_periph, uint32_t pin, bit_status bit_value)
{
if (RESET != bit_value) {
GPIO_BOP(gpio_periph) = (uint32_t) pin;
} else {
GPIO_BC(gpio_periph) = (uint32_t) pin;
}
}
/*!
\brief write data to the specified GPIO port
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] data: specify the value to be written to the port output data register
\param[out] none
\retval none
*/
void gpio_port_write(uint32_t gpio_periph, uint16_t data)
{
GPIO_OCTL(gpio_periph) = (uint32_t) data;
}
/*!
\brief get GPIO pin input status
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] pin: GPIO pin
only one parameter can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval input status of gpio pin: SET or RESET
*/
FlagStatus gpio_input_bit_get(uint32_t gpio_periph, uint32_t pin)
{
if ((uint32_t) RESET != (GPIO_ISTAT(gpio_periph) & (pin))) {
return SET;
} else {
return RESET;
}
}
/*!
\brief get GPIO port input status
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[out] none
\retval input status of gpio all pins
*/
uint16_t gpio_input_port_get(uint32_t gpio_periph)
{
return (uint16_t) (GPIO_ISTAT(gpio_periph));
}
/*!
\brief get GPIO pin output status
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] pin: GPIO pin
only one parameter can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval output status of gpio pin: SET or RESET
*/
FlagStatus gpio_output_bit_get(uint32_t gpio_periph, uint32_t pin)
{
if ((uint32_t) RESET != (GPIO_OCTL(gpio_periph) & (pin))) {
return SET;
} else {
return RESET;
}
}
/*!
\brief get GPIO port output status
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[out] none
\retval output status of gpio all pins
*/
uint16_t gpio_output_port_get(uint32_t gpio_periph)
{
return ((uint16_t) GPIO_OCTL(gpio_periph));
}
/*!
\brief configure GPIO pin remap
\param[in] gpio_remap: select the pin to remap
only one parameter can be selected which are shown as below:
\arg GPIO_SPI0_REMAP: SPI0 remapping
\arg GPIO_I2C0_REMAP: I2C0 remapping
\arg GPIO_USART0_REMAP: USART0 remapping
\arg GPIO_USART1_REMAP: USART1 remapping
\arg GPIO_USART2_PARTIAL_REMAP: USART2 partial remapping
\arg GPIO_USART2_FULL_REMAP: USART2 full remapping
\arg GPIO_TIMER0_PARTIAL_REMAP: TIMER0 partial remapping
\arg GPIO_TIMER0_FULL_REMAP: TIMER0 full remapping
\arg GPIO_TIMER1_PARTIAL_REMAP0: TIMER1 partial remapping
\arg GPIO_TIMER1_PARTIAL_REMAP1: TIMER1 partial remapping
\arg GPIO_TIMER1_FULL_REMAP: TIMER1 full remapping
\arg GPIO_TIMER2_PARTIAL_REMAP: TIMER2 partial remapping
\arg GPIO_TIMER2_FULL_REMAP: TIMER2 full remapping
\arg GPIO_TIMER3_REMAP: TIMER3 remapping
\arg GPIO_CAN0_PARTIAL_REMAP: CAN0 partial remapping
\arg GPIO_CAN0_FULL_REMAP: CAN0 full remapping
\arg GPIO_PD01_REMAP: PD01 remapping
\arg GPIO_TIMER4CH3_IREMAP: TIMER4 channel3 internal remapping
\arg GPIO_CAN1_REMAP: CAN1 remapping
\arg GPIO_SWJ_NONJTRST_REMAP: JTAG-DP,but without NJTRST
\arg GPIO_SWJ_DISABLE_REMAP: JTAG-DP disabled
\arg GPIO_SPI2_REMAP: SPI2 remapping
\arg GPIO_TIMER1ITI1_REMAP: TIMER1 internal trigger 1 remapping
\arg GPIO_EXMC_NADV_REMAP: EXMC_NADV connect/disconnect
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void gpio_pin_remap_config(uint32_t remap, ControlStatus newvalue)
{
uint32_t remap1 = 0U, remap2 = 0U, temp_reg = 0U, temp_mask = 0U;
if (AFIO_PCF1_FIELDS == (remap & AFIO_PCF1_FIELDS)) {
/* get AFIO_PCF1 regiter value */
temp_reg = AFIO_PCF1;
} else {
/* get AFIO_PCF0 regiter value */
temp_reg = AFIO_PCF0;
}
temp_mask = (remap & PCF_POSITION_MASK) >> 0x10U;
remap1 = remap & LSB_16BIT_MASK;
/* judge pin remap type */
if ((PCF_LOCATION1_MASK | PCF_LOCATION2_MASK)
== (remap & (PCF_LOCATION1_MASK | PCF_LOCATION2_MASK))) {
temp_reg &= PCF_SWJCFG_MASK;
AFIO_PCF0 &= PCF_SWJCFG_MASK;
} else if (PCF_LOCATION2_MASK == (remap & PCF_LOCATION2_MASK)) {
remap2 = ((uint32_t) 0x03U) << temp_mask;
temp_reg &= ~remap2;
temp_reg |= ~PCF_SWJCFG_MASK;
} else {
temp_reg &= ~(remap1 << ((remap >> 0x15U) * 0x10U));
temp_reg |= ~PCF_SWJCFG_MASK;
}
/* set pin remap value */
if (DISABLE != newvalue) {
temp_reg |= (remap1 << ((remap >> 0x15U) * 0x10U));
}
if (AFIO_PCF1_FIELDS == (remap & AFIO_PCF1_FIELDS)) {
/* set AFIO_PCF1 regiter value */
AFIO_PCF1 = temp_reg;
} else {
/* set AFIO_PCF0 regiter value */
AFIO_PCF0 = temp_reg;
}
}
/*!
\brief select GPIO pin exti sources
\param[in] gpio_outputport: gpio event output port
only one parameter can be selected which are shown as below:
\arg GPIO_PORT_SOURCE_GPIOA: output port source A
\arg GPIO_PORT_SOURCE_GPIOB: output port source B
\arg GPIO_PORT_SOURCE_GPIOC: output port source C
\arg GPIO_PORT_SOURCE_GPIOD: output port source D
\arg GPIO_PORT_SOURCE_GPIOE: output port source E
\param[in] gpio_outputpin: GPIO_PIN_SOURCE_x(x=0..15)
\param[out] none
\retval none
*/
void gpio_exti_source_select(uint8_t output_port, uint8_t output_pin)
{
uint32_t source = 0U;
source = ((uint32_t) 0x0FU)
<< (AFIO_EXTI_SOURCE_FIELDS * (output_pin & AFIO_EXTI_SOURCE_MASK));
/* select EXTI sources */
if (GPIO_PIN_SOURCE_4 > output_pin) {
/* select EXTI0/EXTI1/EXTI2/EXTI3 */
AFIO_EXTISS0 &= ~source;
AFIO_EXTISS0 |= (((uint32_t) output_port)
<< (AFIO_EXTI_SOURCE_FIELDS
* (output_pin & AFIO_EXTI_SOURCE_MASK)));
} else if (GPIO_PIN_SOURCE_8 > output_pin) {
/* select EXTI4/EXTI5/EXTI6/EXTI7 */
AFIO_EXTISS1 &= ~source;
AFIO_EXTISS1 |= (((uint32_t) output_port)
<< (AFIO_EXTI_SOURCE_FIELDS
* (output_pin & AFIO_EXTI_SOURCE_MASK)));
} else if (GPIO_PIN_SOURCE_12 > output_pin) {
/* select EXTI8/EXTI9/EXTI10/EXTI11 */
AFIO_EXTISS2 &= ~source;
AFIO_EXTISS2 |= (((uint32_t) output_port)
<< (AFIO_EXTI_SOURCE_FIELDS
* (output_pin & AFIO_EXTI_SOURCE_MASK)));
} else {
/* select EXTI12/EXTI13/EXTI14/EXTI15 */
AFIO_EXTISS3 &= ~source;
AFIO_EXTISS3 |= (((uint32_t) output_port)
<< (AFIO_EXTI_SOURCE_FIELDS
* (output_pin & AFIO_EXTI_SOURCE_MASK)));
}
}
/*!
\brief configure GPIO pin event output
\param[in] output_port: gpio event output port
only one parameter can be selected which are shown as below:
\arg GPIO_EVENT_PORT_GPIOA: event output port A
\arg GPIO_EVENT_PORT_GPIOB: event output port B
\arg GPIO_EVENT_PORT_GPIOC: event output port C
\arg GPIO_EVENT_PORT_GPIOD: event output port D
\arg GPIO_EVENT_PORT_GPIOE: event output port E
\param[in] output_pin:
only one parameter can be selected which are shown as below:
\arg GPIO_EVENT_PIN_x(x=0..15)
\param[out] none
\retval none
*/
void gpio_event_output_config(uint8_t output_port, uint8_t output_pin)
{
uint32_t reg = 0U;
reg = AFIO_EC;
/* clear AFIO_EC_PORT and AFIO_EC_PIN bits */
reg &= (uint32_t) (~(AFIO_EC_PORT | AFIO_EC_PIN));
reg |= (uint32_t) ((uint32_t) output_port << GPIO_OUTPUT_PORT_OFFSET);
reg |= (uint32_t) output_pin;
AFIO_EC = reg;
}
/*!
\brief enable GPIO pin event output
\param[in] none
\param[out] none
\retval none
*/
void gpio_event_output_enable(void)
{
AFIO_EC |= AFIO_EC_EOE;
}
/*!
\brief disable GPIO pin event output
\param[in] none
\param[out] none
\retval none
*/
void gpio_event_output_disable(void)
{
AFIO_EC &= (uint32_t) (~AFIO_EC_EOE);
}
/*!
\brief lock GPIO pin
\param[in] gpio_periph: GPIOx(x = A,B,C,D,E)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_pin_lock(uint32_t gpio_periph, uint32_t pin)
{
uint32_t lock = 0x00010000U;
lock |= pin;
/* lock key writing sequence: write 1 -> write 0 -> write 1 -> read 0 -> read 1 */
GPIO_LOCK(gpio_periph) = (uint32_t) lock;
GPIO_LOCK(gpio_periph) = (uint32_t) pin;
GPIO_LOCK(gpio_periph) = (uint32_t) lock;
lock = GPIO_LOCK(gpio_periph);
lock = GPIO_LOCK(gpio_periph);
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_i2c.c
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/*!
\file gd32vf103_i2c.c
\brief I2C driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-09-18, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_i2c.h"
/* I2C register bit mask */
#define I2CCLK_MAX ((uint32_t)0x00000036U) /*!< i2cclk maximum value */
#define I2CCLK_MIN ((uint32_t)0x00000002U) /*!< i2cclk minimum value */
#define I2C_FLAG_MASK ((uint32_t)0x0000FFFFU) /*!< i2c flag mask */
#define I2C_ADDRESS_MASK ((uint32_t)0x000003FFU) /*!< i2c address mask */
#define I2C_ADDRESS2_MASK ((uint32_t)0x000000FEU) /*!< the second i2c address mask */
/* I2C register bit offset */
#define STAT1_PECV_OFFSET ((uint32_t)8U) /* bit offset of PECV in I2C_STAT1 */
/*!
\brief reset I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_deinit(uint32_t i2c_periph)
{
switch (i2c_periph) {
case I2C0:
/* reset I2C0 */
rcu_periph_reset_enable(RCU_I2C0RST);
rcu_periph_reset_disable(RCU_I2C0RST);
break;
case I2C1:
/* reset I2C1 */
rcu_periph_reset_enable(RCU_I2C1RST);
rcu_periph_reset_disable(RCU_I2C1RST);
break;
default:
break;
}
}
/*!
\brief configure I2C clock
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] clkspeed: I2C clock speed, supports standard mode (up to 100 kHz), fast mode (up to 400 kHz)
and fast mode plus (up to 1MHz)
\param[in] dutycyc: duty cycle in fast mode or fast mode plus
only one parameter can be selected which is shown as below:
\arg I2C_DTCY_2: T_low/T_high=2
\arg I2C_DTCY_16_9: T_low/T_high=16/9
\param[out] none
\retval none
*/
void i2c_clock_config(uint32_t i2c_periph, uint32_t clkspeed, uint32_t dutycyc)
{
uint32_t pclk1, clkc, freq, risetime;
uint32_t temp;
pclk1 = rcu_clock_freq_get(CK_APB1);
/* I2C peripheral clock frequency */
freq = (uint32_t) (pclk1 / 1000000U);
if (freq >= I2CCLK_MAX) {
freq = I2CCLK_MAX;
}
temp = I2C_CTL1(i2c_periph);
temp &= ~I2C_CTL1_I2CCLK;
temp |= freq;
I2C_CTL1(i2c_periph) = temp;
if (100000U >= clkspeed) {
/* the maximum SCL rise time is 1000ns in standard mode */
risetime = (uint32_t) ((pclk1 / 1000000U) + 1U);
if (risetime >= I2CCLK_MAX) {
I2C_RT(i2c_periph) = I2CCLK_MAX;
} else if (risetime <= I2CCLK_MIN) {
I2C_RT(i2c_periph) = I2CCLK_MIN;
} else {
I2C_RT(i2c_periph) = risetime;
}
clkc = (uint32_t) (pclk1 / (clkspeed * 2U));
if (clkc < 0x04U) {
/* the CLKC in standard mode minmum value is 4 */
clkc = 0x04U;
}
I2C_CKCFG(i2c_periph) |= (I2C_CKCFG_CLKC & clkc);
} else if (400000U >= clkspeed) {
/* the maximum SCL rise time is 300ns in fast mode */
I2C_RT(i2c_periph) = (uint32_t) (((freq * (uint32_t) 300U)/(uint32_t)1000U)+(uint32_t)1U);
if (I2C_DTCY_2 == dutycyc){
/* I2C duty cycle is 2 */
clkc = (uint32_t) (pclk1 / (clkspeed * 3U));
I2C_CKCFG(i2c_periph) &= ~I2C_CKCFG_DTCY;
} else {
/* I2C duty cycle is 16/9 */
clkc = (uint32_t) (pclk1 / (clkspeed * 25U));
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_DTCY;
}
if (0U == (clkc & I2C_CKCFG_CLKC)) {
/* the CLKC in fast mode minmum value is 1 */
clkc |= 0x0001U;
}
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_FAST;
I2C_CKCFG(i2c_periph) |= clkc;
} else {
/* fast mode plus, the maximum SCL rise time is 120ns */
I2C_RT (i2c_periph) = (uint32_t) (((freq * (uint32_t) 120U) / (uint32_t) 1000U)+(uint32_t) 1U);
if (I2C_DTCY_2 == dutycyc) {
/* I2C duty cycle is 2 */
clkc = (uint32_t) (pclk1 / (clkspeed * 3U));
I2C_CKCFG(i2c_periph) &= ~I2C_CKCFG_DTCY;
} else {
/* I2C duty cycle is 16/9 */
clkc = (uint32_t) (pclk1 / (clkspeed * 25U));
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_DTCY;
}
/* enable fast mode */
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_FAST;
I2C_CKCFG(i2c_periph) |= clkc;
/* enable I2C fast mode plus */
I2C_FMPCFG(i2c_periph) |= I2C_FMPCFG_FMPEN;
}
}
/*!
\brief configure I2C address
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] mode:
only one parameter can be selected which is shown as below:
\arg I2C_I2CMODE_ENABLE: I2C mode
\arg I2C_SMBUSMODE_ENABLE: SMBus mode
\param[in] addformat: 7bits or 10bits
only one parameter can be selected which is shown as below:
\arg I2C_ADDFORMAT_7BITS: 7bits
\arg I2C_ADDFORMAT_10BITS: 10bits
\param[in] addr: I2C address
\param[out] none
\retval none
*/
void i2c_mode_addr_config(uint32_t i2c_periph, uint32_t mode,uint32_t addformat, uint32_t addr)
{
/* SMBus/I2C mode selected */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SMBEN);
ctl |= mode;
I2C_CTL0(i2c_periph) = ctl;
/* configure address */
addr = addr & I2C_ADDRESS_MASK;
I2C_SADDR0(i2c_periph) = (addformat | addr);
}
/*!
\brief SMBus type selection
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] type:
only one parameter can be selected which is shown as below:
\arg I2C_SMBUS_DEVICE: device
\arg I2C_SMBUS_HOST: host
\param[out] none
\retval none
*/
void i2c_smbus_type_config(uint32_t i2c_periph, uint32_t type)
{
if (I2C_SMBUS_HOST == type) {
I2C_CTL0(i2c_periph) |= I2C_CTL0_SMBSEL;
} else {
I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_SMBSEL);
}
}
/*!
\brief whether or not to send an ACK
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] ack:
only one parameter can be selected which is shown as below:
\arg I2C_ACK_ENABLE: ACK will be sent
\arg I2C_ACK_DISABLE: ACK will not be sent
\param[out] none
\retval none
*/
void i2c_ack_config(uint32_t i2c_periph, uint32_t ack)
{
if (I2C_ACK_ENABLE == ack) {
I2C_CTL0(i2c_periph) |= I2C_CTL0_ACKEN;
} else {
I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_ACKEN);
}
}
/*!
\brief configure I2C POAP position
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] pos:
only one parameter can be selected which is shown as below:
\arg I2C_ACKPOS_CURRENT: whether to send ACK or not for the current
\arg I2C_ACKPOS_NEXT: whether to send ACK or not for the next byte
\param[out] none
\retval none
*/
void i2c_ackpos_config(uint32_t i2c_periph, uint32_t pos)
{
/* configure I2C POAP position */
if (I2C_ACKPOS_NEXT == pos) {
I2C_CTL0(i2c_periph) |= I2C_CTL0_POAP;
} else {
I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_POAP);
}
}
/*!
\brief master sends slave address
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] addr: slave address
\param[in] trandirection: transmitter or receiver
only one parameter can be selected which is shown as below:
\arg I2C_TRANSMITTER: transmitter
\arg I2C_RECEIVER: receiver
\param[out] none
\retval none
*/
void i2c_master_addressing(uint32_t i2c_periph, uint32_t addr,uint32_t trandirection)
{
/* master is a transmitter or a receiver */
if (I2C_TRANSMITTER == trandirection) {
addr = addr & I2C_TRANSMITTER;
} else {
addr = addr | I2C_RECEIVER;
}
/* send slave address */
I2C_DATA(i2c_periph) = addr;
}
/*!
\brief enable dual-address mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] addr: the second address in dual-address mode
\param[out] none
\retval none
*/
void i2c_dualaddr_enable(uint32_t i2c_periph, uint32_t addr)
{
/* configure address */
addr = addr & I2C_ADDRESS2_MASK;
I2C_SADDR1(i2c_periph) = (I2C_SADDR1_DUADEN | addr);
}
/*!
\brief disable dual-address mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_dualaddr_disable(uint32_t i2c_periph)
{
I2C_SADDR1(i2c_periph) &= ~(I2C_SADDR1_DUADEN);
}
/*!
\brief enable I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_enable(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) |= I2C_CTL0_I2CEN;
}
/*!
\brief disable I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_disable(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_I2CEN);
}
/*!
\brief generate a START condition on I2C bus
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_start_on_bus(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) |= I2C_CTL0_START;
}
/*!
\brief generate a STOP condition on I2C bus
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_stop_on_bus(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) |= I2C_CTL0_STOP;
}
/*!
\brief I2C transmit data function
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] data: data of transmission
\param[out] none
\retval none
*/
void i2c_data_transmit(uint32_t i2c_periph, uint8_t data)
{
I2C_DATA(i2c_periph) = DATA_TRANS(data);
}
/*!
\brief I2C receive data function
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval data of received
*/
uint8_t i2c_data_receive(uint32_t i2c_periph)
{
return (uint8_t) DATA_RECV(I2C_DATA(i2c_periph));
}
/*!
\brief enable I2C DMA mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] dmastate:
only one parameter can be selected which is shown as below:
\arg I2C_DMA_ON: DMA mode enable
\arg I2C_DMA_OFF: DMA mode disable
\param[out] none
\retval none
*/
void i2c_dma_enable(uint32_t i2c_periph, uint32_t dmastate)
{
/* configure I2C DMA function */
uint32_t ctl = 0U;
ctl = I2C_CTL1(i2c_periph);
ctl &= ~(I2C_CTL1_DMAON);
ctl |= dmastate;
I2C_CTL1(i2c_periph) = ctl;
}
/*!
\brief configure whether next DMA EOT is DMA last transfer or not
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] dmalast:
only one parameter can be selected which is shown as below:
\arg I2C_DMALST_ON: next DMA EOT is the last transfer
\arg I2C_DMALST_OFF: next DMA EOT is not the last transfer
\param[out] none
\retval none
*/
void i2c_dma_last_transfer_config(uint32_t i2c_periph, uint32_t dmalast)
{
/* configure DMA last transfer */
uint32_t ctl = 0U;
ctl = I2C_CTL1(i2c_periph);
ctl &= ~(I2C_CTL1_DMALST);
ctl |= dmalast;
I2C_CTL1(i2c_periph) = ctl;
}
/*!
\brief whether to stretch SCL low when data is not ready in slave mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] stretchpara:
only one parameter can be selected which is shown as below:
\arg I2C_SCLSTRETCH_ENABLE: SCL stretching is enabled
\arg I2C_SCLSTRETCH_DISABLE: SCL stretching is disabled
\param[out] none
\retval none
*/
void i2c_stretch_scl_low_config(uint32_t i2c_periph, uint32_t stretchpara)
{
/* configure I2C SCL strerching enable or disable */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SS);
ctl |= stretchpara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief whether or not to response to a general call
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] gcallpara:
only one parameter can be selected which is shown as below:
\arg I2C_GCEN_ENABLE: slave will response to a general call
\arg I2C_GCEN_DISABLE: slave will not response to a general call
\param[out] none
\retval none
*/
void i2c_slave_response_to_gcall_config(uint32_t i2c_periph, uint32_t gcallpara)
{
/* configure slave response to a general call enable or disable */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_GCEN);
ctl |= gcallpara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief software reset I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] sreset:
only one parameter can be selected which is shown as below:
\arg I2C_SRESET_SET: I2C is under reset
\arg I2C_SRESET_RESET: I2C is not under reset
\param[out] none
\retval none
*/
void i2c_software_reset_config(uint32_t i2c_periph, uint32_t sreset)
{
/* modify CTL0 and configure software reset I2C state */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SRESET);
ctl |= sreset;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief I2C PEC calculation on or off
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] pecpara:
only one parameter can be selected which is shown as below:
\arg I2C_PEC_ENABLE: PEC calculation on
\arg I2C_PEC_DISABLE: PEC calculation off
\param[out] none
\retval none
*/
void i2c_pec_enable(uint32_t i2c_periph, uint32_t pecstate)
{
/* on/off PEC calculation */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_PECEN);
ctl |= pecstate;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief I2C whether to transfer PEC value
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] pecpara:
only one parameter can be selected which is shown as below:
\arg I2C_PECTRANS_ENABLE: transfer PEC
\arg I2C_PECTRANS_DISABLE: not transfer PEC
\param[out] none
\retval none
*/
void i2c_pec_transfer_enable(uint32_t i2c_periph, uint32_t pecpara)
{
/* whether to transfer PEC */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_PECTRANS);
ctl |= pecpara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief get packet error checking value
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval PEC value
*/
uint8_t i2c_pec_value_get(uint32_t i2c_periph)
{
return (uint8_t) ((I2C_STAT1(i2c_periph) & I2C_STAT1_PECV)>> STAT1_PECV_OFFSET);
}
/*!
\brief I2C issue alert through SMBA pin
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] smbuspara:
only one parameter can be selected which is shown as below:
\arg I2C_SALTSEND_ENABLE: issue alert through SMBA pin
\arg I2C_SALTSEND_DISABLE: not issue alert through SMBA pin
\param[out] none
\retval none
*/
void i2c_smbus_issue_alert(uint32_t i2c_periph, uint32_t smbuspara)
{
/* issue alert through SMBA pin configure*/
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SALT);
ctl |= smbuspara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief enable or disable I2C ARP protocol in SMBus switch
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] arpstate:
only one parameter can be selected which is shown as below:
\arg I2C_ARP_ENABLE: enable ARP
\arg I2C_ARP_DISABLE: disable ARP
\param[out] none
\retval none
*/
void i2c_smbus_arp_enable(uint32_t i2c_periph, uint32_t arpstate)
{
/* enable or disable I2C ARP protocol*/
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_ARPEN);
ctl |= arpstate;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief check I2C flag is set or not
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] flag: I2C flags, refer to i2c_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_FLAG_SBSEND: start condition send out
\arg I2C_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode
\arg I2C_FLAG_BTC: byte transmission finishes
\arg I2C_FLAG_ADD10SEND: header of 10-bit address is sent in master mode
\arg I2C_FLAG_STPDET: stop condition detected in slave mode
\arg I2C_FLAG_RBNE: I2C_DATA is not Empty during receiving
\arg I2C_FLAG_TBE: I2C_DATA is empty during transmitting
\arg I2C_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus
\arg I2C_FLAG_LOSTARB: arbitration lost in master mode
\arg I2C_FLAG_AERR: acknowledge error
\arg I2C_FLAG_OUERR: overrun or underrun situation occurs in slave mode
\arg I2C_FLAG_PECERR: PEC error when receiving data
\arg I2C_FLAG_SMBTO: timeout signal in SMBus mode
\arg I2C_FLAG_SMBALT: SMBus alert status
\arg I2C_FLAG_MASTER: a flag indicating whether I2C block is in master or slave mode
\arg I2C_FLAG_I2CBSY: busy flag
\arg I2C_FLAG_TR: whether the I2C is a transmitter or a receiver
\arg I2C_FLAG_RXGC: general call address (00h) received
\arg I2C_FLAG_DEFSMB: default address of SMBus device
\arg I2C_FLAG_HSTSMB: SMBus host header detected in slave mode
\arg I2C_FLAG_DUMODF: dual flag in slave mode indicating which address is matched in dual-address mode
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus i2c_flag_get(uint32_t i2c_periph, i2c_flag_enum flag)
{
if (RESET != (I2C_REG_VAL(i2c_periph, flag) & BIT(I2C_BIT_POS(flag)))) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear I2C flag
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] flag: I2C flags, refer to i2c_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_FLAG_SMBALT: SMBus Alert status
\arg I2C_FLAG_SMBTO: timeout signal in SMBus mode
\arg I2C_FLAG_PECERR: PEC error when receiving data
\arg I2C_FLAG_OUERR: over-run or under-run situation occurs in slave mode
\arg I2C_FLAG_AERR: acknowledge error
\arg I2C_FLAG_LOSTARB: arbitration lost in master mode
\arg I2C_FLAG_BERR: a bus error
\arg I2C_FLAG_ADDSEND: cleared by reading I2C_STAT0 and reading I2C_STAT1
\param[out] none
\retval none
*/
void i2c_flag_clear(uint32_t i2c_periph, i2c_flag_enum flag)
{
uint32_t temp;
if (I2C_FLAG_ADDSEND == flag) {
/* read I2C_STAT0 and then read I2C_STAT1 to clear ADDSEND */
temp = I2C_STAT0(i2c_periph);
temp = I2C_STAT1(i2c_periph);
} else {
I2C_REG_VAL(i2c_periph, flag) &= ~BIT(I2C_BIT_POS(flag));
}
}
/*!
\brief enable I2C interrupt
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] interrupt: I2C interrupts, refer to i2c_interrupt_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_ERR: error interrupt enable
\arg I2C_INT_EV: event interrupt enable
\arg I2C_INT_BUF: buffer interrupt enable
\param[out] none
\retval none
*/
void i2c_interrupt_enable(uint32_t i2c_periph, i2c_interrupt_enum interrupt)
{
I2C_REG_VAL(i2c_periph, interrupt) |= BIT(I2C_BIT_POS(interrupt));
}
/*!
\brief disable I2C interrupt
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] interrupt: I2C interrupts, refer to i2c_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_ERR: error interrupt enable
\arg I2C_INT_EV: event interrupt enable
\arg I2C_INT_BUF: buffer interrupt enable
\param[out] none
\retval none
*/
void i2c_interrupt_disable(uint32_t i2c_periph, i2c_interrupt_enum interrupt)
{
I2C_REG_VAL(i2c_periph, interrupt) &= ~BIT(I2C_BIT_POS(interrupt));
}
/*!
\brief check I2C interrupt flag
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] int_flag: I2C interrupt flags, refer to i2c_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_FLAG_SBSEND: start condition sent out in master mode interrupt flag
\arg I2C_INT_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode interrupt flag
\arg I2C_INT_FLAG_BTC: byte transmission finishes
\arg I2C_INT_FLAG_ADD10SEND: header of 10-bit address is sent in master mode interrupt flag
\arg I2C_INT_FLAG_STPDET: etop condition detected in slave mode interrupt flag
\arg I2C_INT_FLAG_RBNE: I2C_DATA is not Empty during receiving interrupt flag
\arg I2C_INT_FLAG_TBE: I2C_DATA is empty during transmitting interrupt flag
\arg I2C_INT_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag
\arg I2C_INT_FLAG_LOSTARB: arbitration lost in master mode interrupt flag
\arg I2C_INT_FLAG_AERR: acknowledge error interrupt flag
\arg I2C_INT_FLAG_OUERR: over-run or under-run situation occurs in slave mode interrupt flag
\arg I2C_INT_FLAG_PECERR: PEC error when receiving data interrupt flag
\arg I2C_INT_FLAG_SMBTO: timeout signal in SMBus mode interrupt flag
\arg I2C_INT_FLAG_SMBALT: SMBus Alert status interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus i2c_interrupt_flag_get(uint32_t i2c_periph,i2c_interrupt_flag_enum int_flag)
{
uint32_t intenable = 0U, flagstatus = 0U, bufie;
/* check BUFIE */
bufie = I2C_CTL1(i2c_periph) & I2C_CTL1_BUFIE;
/* get the interrupt enable bit status */
intenable = (I2C_REG_VAL(i2c_periph, int_flag) & BIT(I2C_BIT_POS(int_flag)));
/* get the corresponding flag bit status */
flagstatus = (I2C_REG_VAL2(i2c_periph, int_flag)& BIT(I2C_BIT_POS2(int_flag)));
if ((I2C_INT_FLAG_RBNE == int_flag) || (I2C_INT_FLAG_TBE == int_flag)) {
if (intenable && bufie) {
intenable = 1U;
} else {
intenable = 0U;
}
}
if ((0U != flagstatus) && (0U != intenable)) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear I2C interrupt flag
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] int_flag: I2C interrupt flags, refer to i2c_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode interrupt flag
\arg I2C_INT_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag
\arg I2C_INT_FLAG_LOSTARB: arbitration lost in master mode interrupt flag
\arg I2C_INT_FLAG_AERR: acknowledge error interrupt flag
\arg I2C_INT_FLAG_OUERR: over-run or under-run situation occurs in slave mode interrupt flag
\arg I2C_INT_FLAG_PECERR: PEC error when receiving data interrupt flag
\arg I2C_INT_FLAG_SMBTO: timeout signal in SMBus mode interrupt flag
\arg I2C_INT_FLAG_SMBALT: SMBus Alert status interrupt flag
\param[out] none
\retval none
*/
void i2c_interrupt_flag_clear(uint32_t i2c_periph,i2c_interrupt_flag_enum int_flag)
{
uint32_t temp;
if (I2C_INT_FLAG_ADDSEND == int_flag) {
/* read I2C_STAT0 and then read I2C_STAT1 to clear ADDSEND */
temp = I2C_STAT0(i2c_periph);
temp = I2C_STAT1(i2c_periph);
} else {
I2C_REG_VAL2(i2c_periph, int_flag) &= ~BIT(I2C_BIT_POS2(int_flag));
}
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_pmu.c
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/*!
\file gd32vf103_pmu.c
\brief PMU driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_pmu.h"
#include "riscv_encoding.h"
/*!
\brief reset PMU register
\param[in] none
\param[out] none
\retval none
*/
void pmu_deinit(void)
{
/* reset PMU */
rcu_periph_reset_enable(RCU_PMURST);
rcu_periph_reset_disable(RCU_PMURST);
}
/*!
\brief select low voltage detector threshold
\param[in] lvdt_n:
only one parameter can be selected which is shown as below:
\arg PMU_LVDT_0: voltage threshold is 2.2V
\arg PMU_LVDT_1: voltage threshold is 2.3V
\arg PMU_LVDT_2: voltage threshold is 2.4V
\arg PMU_LVDT_3: voltage threshold is 2.5V
\arg PMU_LVDT_4: voltage threshold is 2.6V
\arg PMU_LVDT_5: voltage threshold is 2.7V
\arg PMU_LVDT_6: voltage threshold is 2.8V
\arg PMU_LVDT_7: voltage threshold is 2.9V
\param[out] none
\retval none
*/
void pmu_lvd_select(uint32_t lvdt_n)
{
/* disable LVD */
PMU_CTL &= ~PMU_CTL_LVDEN;
/* clear LVDT bits */
PMU_CTL &= ~PMU_CTL_LVDT;
/* set LVDT bits according to lvdt_n */
PMU_CTL |= lvdt_n;
/* enable LVD */
PMU_CTL |= PMU_CTL_LVDEN;
}
/*!
\brief disable PMU lvd
\param[in] none
\param[out] none
\retval none
*/
void pmu_lvd_disable(void)
{
/* disable LVD */
PMU_CTL &= ~PMU_CTL_LVDEN;
}
/*!
\brief PMU work at sleep mode
\param[in] sleepmodecmd:
only one parameter can be selected which is shown as below:
\arg WFI_CMD: use WFI command
\arg WFE_CMD: use WFE command
\param[out] none
\retval none
*/
void pmu_to_sleepmode(uint8_t sleepmodecmd)
{
/* clear sleepdeep bit of RISC-V system control register */
clear_csr(0x811, 0x1);
/* select WFI or WFE command to enter sleep mode */
if(WFI_CMD == sleepmodecmd){
__WFI();
}else{
clear_csr(mstatus, MSTATUS_MIE);
set_csr(0x810, 0x1);
__WFI();
clear_csr(0x810, 0x1);
set_csr(mstatus, MSTATUS_MIE);
}
}
/*!
\brief PMU work at deepsleep mode
\param[in] ldo:
only one parameter can be selected which is shown as below:
\arg PMU_LDO_NORMAL: LDO work at normal power mode when pmu enter deepsleep mode
\arg PMU_LDO_LOWPOWER: LDO work at low power mode when pmu enter deepsleep mode
\param[in] deepsleepmodecmd:
only one parameter can be selected which is shown as below:
\arg WFI_CMD: use WFI command
\arg WFE_CMD: use WFE command
\param[out] none
\retval none
*/
void pmu_to_deepsleepmode(uint32_t ldo,uint8_t deepsleepmodecmd)
{
/* clear stbmod and ldolp bits */
PMU_CTL &= ~((uint32_t)(PMU_CTL_STBMOD | PMU_CTL_LDOLP));
/* set ldolp bit according to pmu_ldo */
PMU_CTL |= ldo;
/* set CSR_SLEEPVALUE bit of RISC-V system control register */
set_csr(0x811, 0x1);
/* select WFI or WFE command to enter deepsleep mode */
if(WFI_CMD == deepsleepmodecmd){
__WFI();
}else{
clear_csr(mstatus, MSTATUS_MIE);
set_csr(0x810, 0x1);
__WFI();
clear_csr(0x810, 0x1);
set_csr(mstatus, MSTATUS_MIE);
}
/* reset sleepdeep bit of RISC-V system control register */
clear_csr(0x811, 0x1);
}
/*!
\brief pmu work at standby mode
\param[in] standbymodecmd:
only one parameter can be selected which is shown as below:
\arg WFI_CMD: use WFI command
\arg WFE_CMD: use WFE command
\param[out] none
\retval none
*/
void pmu_to_standbymode(uint8_t standbymodecmd)
{
/* set CSR_SLEEPVALUE bit of RISC-V system control register */
set_csr(0x811, 0x1);
/* set stbmod bit */
PMU_CTL |= PMU_CTL_STBMOD;
/* reset wakeup flag */
PMU_CTL |= PMU_CTL_WURST;
/* select WFI or WFE command to enter standby mode */
if(WFI_CMD == standbymodecmd){
__WFI();
}else{
clear_csr(mstatus, MSTATUS_MIE);
set_csr(0x810, 0x1);
__WFI();
clear_csr(0x810, 0x1);
set_csr(mstatus, MSTATUS_MIE);
}
clear_csr(0x811, 0x1);
}
/*!
\brief enable wakeup pin
\param[in] none
\param[out] none
\retval none
*/
void pmu_wakeup_pin_enable(void)
{
PMU_CS |= PMU_CS_WUPEN;
}
/*!
\brief disable wakeup pin
\param[in] none
\param[out] none
\retval none
*/
void pmu_wakeup_pin_disable(void)
{
PMU_CS &= ~PMU_CS_WUPEN;
}
/*!
\brief enable write access to the registers in backup domain
\param[in] none
\param[out] none
\retval none
*/
void pmu_backup_write_enable(void)
{
PMU_CTL |= PMU_CTL_BKPWEN;
}
/*!
\brief disable write access to the registers in backup domain
\param[in] none
\param[out] none
\retval none
*/
void pmu_backup_write_disable(void)
{
PMU_CTL &= ~PMU_CTL_BKPWEN;
}
/*!
\brief get flag state
\param[in] flag:
only one parameter can be selected which is shown as below:
\arg PMU_FLAG_WAKEUP: wakeup flag
\arg PMU_FLAG_STANDBY: standby flag
\arg PMU_FLAG_LVD: lvd flag
\param[out] none
\retval FlagStatus SET or RESET
*/
FlagStatus pmu_flag_get(uint32_t flag)
{
if(PMU_CS & flag){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear flag bit
\param[in] flag_reset:
only one parameter can be selected which is shown as below:
\arg PMU_FLAG_RESET_WAKEUP: reset wakeup flag
\arg PMU_FLAG_RESET_STANDBY: reset standby flag
\param[out] none
\retval none
*/
void pmu_flag_clear(uint32_t flag_reset)
{
switch(flag_reset){
case PMU_FLAG_RESET_WAKEUP:
/* reset wakeup flag */
PMU_CTL |= PMU_CTL_WURST;
break;
case PMU_FLAG_RESET_STANDBY:
/* reset standby flag */
PMU_CTL |= PMU_CTL_STBRST;
break;
default :
break;
}
}

1111
RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_rcu.c
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/*!
\file gd32vf103_rcu.c
\brief RCU driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_rcu.h"
/* define clock source */
#define SEL_IRC8M ((uint16_t)0U)
#define SEL_HXTAL ((uint16_t)1U)
#define SEL_PLL ((uint16_t)2U)
/* define startup timeout count */
#define OSC_STARTUP_TIMEOUT ((uint32_t)0xFFFFFU)
#define LXTAL_STARTUP_TIMEOUT ((uint32_t)0x3FFFFFFU)
/*!
\brief deinitialize the RCU
\param[in] none
\param[out] none
\retval none
*/
void rcu_deinit(void)
{
/* enable IRC8M */
RCU_CTL |= RCU_CTL_IRC8MEN;
rcu_osci_stab_wait(RCU_IRC8M);
/* reset CFG0 register */
RCU_CFG0 &= ~(RCU_CFG0_SCS | RCU_CFG0_AHBPSC | RCU_CFG0_APB1PSC | RCU_CFG0_APB2PSC |
RCU_CFG0_ADCPSC | RCU_CFG0_PLLSEL | RCU_CFG0_PREDV0_LSB | RCU_CFG0_PLLMF |
RCU_CFG0_USBFSPSC | RCU_CFG0_CKOUT0SEL | RCU_CFG0_ADCPSC_2 | RCU_CFG0_PLLMF_4);
/* reset CTL register */
RCU_CTL &= ~(RCU_CTL_HXTALEN | RCU_CTL_CKMEN | RCU_CTL_PLLEN);
RCU_CTL &= ~RCU_CTL_HXTALBPS;
RCU_CTL &= ~(RCU_CTL_PLL1EN | RCU_CTL_PLL2EN);
/* reset INT and CFG1 register */
RCU_INT = 0x00ff0000U;
RCU_CFG1 &= ~(RCU_CFG1_PREDV0 | RCU_CFG1_PREDV1 | RCU_CFG1_PLL1MF | RCU_CFG1_PLL2MF |
RCU_CFG1_PREDV0SEL | RCU_CFG1_I2S1SEL | RCU_CFG1_I2S2SEL);
}
/*!
\brief enable the peripherals clock
\param[in] periph: RCU peripherals, refer to rcu_periph_enum
only one parameter can be selected which is shown as below:
\arg RCU_GPIOx (x=A,B,C,D,E): GPIO ports clock
\arg RCU_AF : alternate function clock
\arg RCU_CRC: CRC clock
\arg RCU_DMAx (x=0,1): DMA clock
\arg RCU_USBFS: USBFS clock
\arg RCU_EXMC: EXMC clock
\arg RCU_TIMERx (x=0,1,2,3,4,5,6): TIMER clock
\arg RCU_WWDGT: WWDGT clock
\arg RCU_SPIx (x=0,1,2): SPI clock
\arg RCU_USARTx (x=0,1,2): USART clock
\arg RCU_UARTx (x=3,4): UART clock
\arg RCU_I2Cx (x=0,1): I2C clock
\arg RCU_CANx (x=0,1): CAN clock
\arg RCU_PMU: PMU clock
\arg RCU_DAC: DAC clock
\arg RCU_RTC: RTC clock
\arg RCU_ADCx (x=0,1): ADC clock
\arg RCU_BKPI: BKP interface clock
\param[out] none
\retval none
*/
void rcu_periph_clock_enable(rcu_periph_enum periph)
{
RCU_REG_VAL(periph) |= BIT(RCU_BIT_POS(periph));
}
/*!
\brief disable the peripherals clock
\param[in] periph: RCU peripherals, refer to rcu_periph_enum
only one parameter can be selected which is shown as below:
\arg RCU_GPIOx (x=A,B,C,D,E): GPIO ports clock
\arg RCU_AF: alternate function clock
\arg RCU_CRC: CRC clock
\arg RCU_DMAx (x=0,1): DMA clock
\arg RCU_USBFS: USBFS clock
\arg RCU_EXMC: EXMC clock
\arg RCU_TIMERx (x=0,1,2,3,4,5,6): TIMER clock
\arg RCU_WWDGT: WWDGT clock
\arg RCU_SPIx (x=0,1,2): SPI clock
\arg RCU_USARTx (x=0,1,2): USART clock
\arg RCU_UARTx (x=3,4): UART clock
\arg RCU_I2Cx (x=0,1): I2C clock
\arg RCU_CANx (x=0,1): CAN clock
\arg RCU_PMU: PMU clock
\arg RCU_DAC: DAC clock
\arg RCU_RTC: RTC clock
\arg RCU_ADCx (x=0,1): ADC clock
\arg RCU_BKPI: BKP interface clock
\param[out] none
\retval none
*/
void rcu_periph_clock_disable(rcu_periph_enum periph)
{
RCU_REG_VAL(periph) &= ~BIT(RCU_BIT_POS(periph));
}
/*!
\brief enable the peripherals clock when sleep mode
\param[in] periph: RCU peripherals, refer to rcu_periph_sleep_enum
only one parameter can be selected which is shown as below:
\arg RCU_FMC_SLP: FMC clock
\arg RCU_SRAM_SLP: SRAM clock
\param[out] none
\retval none
*/
void rcu_periph_clock_sleep_enable(rcu_periph_sleep_enum periph)
{
RCU_REG_VAL(periph) |= BIT(RCU_BIT_POS(periph));
}
/*!
\brief disable the peripherals clock when sleep mode
\param[in] periph: RCU peripherals, refer to rcu_periph_sleep_enum
only one parameter can be selected which is shown as below:
\arg RCU_FMC_SLP: FMC clock
\arg RCU_SRAM_SLP: SRAM clock
\param[out] none
\retval none
*/
void rcu_periph_clock_sleep_disable(rcu_periph_sleep_enum periph)
{
RCU_REG_VAL(periph) &= ~BIT(RCU_BIT_POS(periph));
}
/*!
\brief reset the peripherals
\param[in] periph_reset: RCU peripherals reset, refer to rcu_periph_reset_enum
only one parameter can be selected which is shown as below:
\arg RCU_GPIOxRST (x=A,B,C,D,E): reset GPIO ports
\arg RCU_AFRST : reset alternate function clock
\arg RCU_USBFSRST: reset USBFS
\arg RCU_TIMERxRST (x=0,1,2,3,4,5,6): reset TIMER
\arg RCU_WWDGTRST: reset WWDGT
\arg RCU_SPIxRST (x=0,1,2): reset SPI
\arg RCU_USARTxRST (x=0,1,2): reset USART
\arg RCU_UARTxRST (x=3,4): reset UART
\arg RCU_I2CxRST (x=0,1): reset I2C
\arg RCU_CANxRST (x=0,1): reset CAN
\arg RCU_PMURST: reset PMU
\arg RCU_DACRST: reset DAC
\arg RCU_ADCxRST (x=0,1): reset ADC
\arg RCU_BKPIRST: reset BKPI
\param[out] none
\retval none
*/
void rcu_periph_reset_enable(rcu_periph_reset_enum periph_reset)
{
RCU_REG_VAL(periph_reset) |= BIT(RCU_BIT_POS(periph_reset));
}
/*!
\brief disable reset the peripheral
\param[in] periph_reset: RCU peripherals reset, refer to rcu_periph_reset_enum
only one parameter can be selected which is shown as below:
\arg RCU_GPIOxRST (x=A,B,C,D,E): reset GPIO ports
\arg RCU_AFRST : reset alternate function clock
\arg RCU_USBFSRST: reset USBFS
\arg RCU_TIMERxRST (x=0,1,2,3,4,5,6): reset TIMER
\arg RCU_WWDGTRST: reset WWDGT
\arg RCU_SPIxRST (x=0,1,2): reset SPI
\arg RCU_USARTxRST (x=0,1,2): reset USART
\arg RCU_UARTxRST (x=3,4): reset UART
\arg RCU_I2CxRST (x=0,1): reset I2C
\arg RCU_CANxRST (x=0,1): reset CAN
\arg RCU_PMURST: reset PMU
\arg RCU_DACRST: reset DAC
\arg RCU_ADCxRST (x=0,1): reset ADC
\arg RCU_BKPIRST: reset BKPI
\param[out] none
\retval none
*/
void rcu_periph_reset_disable(rcu_periph_reset_enum periph_reset)
{
RCU_REG_VAL(periph_reset) &= ~BIT(RCU_BIT_POS(periph_reset));
}
/*!
\brief reset the BKP domain
\param[in] none
\param[out] none
\retval none
*/
void rcu_bkp_reset_enable(void)
{
RCU_BDCTL |= RCU_BDCTL_BKPRST;
}
/*!
\brief disable the BKP domain reset
\param[in] none
\param[out] none
\retval none
*/
void rcu_bkp_reset_disable(void)
{
RCU_BDCTL &= ~RCU_BDCTL_BKPRST;
}
/*!
\brief configure the system clock source
\param[in] ck_sys: system clock source select
only one parameter can be selected which is shown as below:
\arg RCU_CKSYSSRC_IRC8M: select CK_IRC8M as the CK_SYS source
\arg RCU_CKSYSSRC_HXTAL: select CK_HXTAL as the CK_SYS source
\arg RCU_CKSYSSRC_PLL: select CK_PLL as the CK_SYS source
\param[out] none
\retval none
*/
void rcu_system_clock_source_config(uint32_t ck_sys)
{
uint32_t reg;
reg = RCU_CFG0;
/* reset the SCS bits and set according to ck_sys */
reg &= ~RCU_CFG0_SCS;
RCU_CFG0 = (reg | ck_sys);
}
/*!
\brief get the system clock source
\param[in] none
\param[out] none
\retval which clock is selected as CK_SYS source
\arg RCU_SCSS_IRC8M: CK_IRC8M is selected as the CK_SYS source
\arg RCU_SCSS_HXTAL: CK_HXTAL is selected as the CK_SYS source
\arg RCU_SCSS_PLL: CK_PLL is selected as the CK_SYS source
*/
uint32_t rcu_system_clock_source_get(void)
{
return (RCU_CFG0 & RCU_CFG0_SCSS);
}
/*!
\brief configure the AHB clock prescaler selection
\param[in] ck_ahb: AHB clock prescaler selection
only one parameter can be selected which is shown as below:
\arg RCU_AHB_CKSYS_DIVx, x=1, 2, 4, 8, 16, 64, 128, 256, 512
\param[out] none
\retval none
*/
void rcu_ahb_clock_config(uint32_t ck_ahb)
{
uint32_t reg;
reg = RCU_CFG0;
/* reset the AHBPSC bits and set according to ck_ahb */
reg &= ~RCU_CFG0_AHBPSC;
RCU_CFG0 = (reg | ck_ahb);
}
/*!
\brief configure the APB1 clock prescaler selection
\param[in] ck_apb1: APB1 clock prescaler selection
only one parameter can be selected which is shown as below:
\arg RCU_APB1_CKAHB_DIV1: select CK_AHB as CK_APB1
\arg RCU_APB1_CKAHB_DIV2: select CK_AHB/2 as CK_APB1
\arg RCU_APB1_CKAHB_DIV4: select CK_AHB/4 as CK_APB1
\arg RCU_APB1_CKAHB_DIV8: select CK_AHB/8 as CK_APB1
\arg RCU_APB1_CKAHB_DIV16: select CK_AHB/16 as CK_APB1
\param[out] none
\retval none
*/
void rcu_apb1_clock_config(uint32_t ck_apb1)
{
uint32_t reg;
reg = RCU_CFG0;
/* reset the APB1PSC and set according to ck_apb1 */
reg &= ~RCU_CFG0_APB1PSC;
RCU_CFG0 = (reg | ck_apb1);
}
/*!
\brief configure the APB2 clock prescaler selection
\param[in] ck_apb2: APB2 clock prescaler selection
only one parameter can be selected which is shown as below:
\arg RCU_APB2_CKAHB_DIV1: select CK_AHB as CK_APB2
\arg RCU_APB2_CKAHB_DIV2: select CK_AHB/2 as CK_APB2
\arg RCU_APB2_CKAHB_DIV4: select CK_AHB/4 as CK_APB2
\arg RCU_APB2_CKAHB_DIV8: select CK_AHB/8 as CK_APB2
\arg RCU_APB2_CKAHB_DIV16: select CK_AHB/16 as CK_APB2
\param[out] none
\retval none
*/
void rcu_apb2_clock_config(uint32_t ck_apb2)
{
uint32_t reg;
reg = RCU_CFG0;
/* reset the APB2PSC and set according to ck_apb2 */
reg &= ~RCU_CFG0_APB2PSC;
RCU_CFG0 = (reg | ck_apb2);
}
/*!
\brief configure the CK_OUT0 clock source
\param[in] ckout0_src: CK_OUT0 clock source selection
only one parameter can be selected which is shown as below:
\arg RCU_CKOUT0SRC_NONE: no clock selected
\arg RCU_CKOUT0SRC_CKSYS: system clock selected
\arg RCU_CKOUT0SRC_IRC8M: high speed 8M internal oscillator clock selected
\arg RCU_CKOUT0SRC_HXTAL: HXTAL selected
\arg RCU_CKOUT0SRC_CKPLL_DIV2: CK_PLL/2 selected
\arg RCU_CKOUT0SRC_CKPLL1: CK_PLL1 selected
\arg RCU_CKOUT0SRC_CKPLL2_DIV2: CK_PLL2/2 selected
\arg RCU_CKOUT0SRC_EXT1: EXT1 selected
\arg RCU_CKOUT0SRC_CKPLL2: PLL2 selected
\param[out] none
\retval none
*/
void rcu_ckout0_config(uint32_t ckout0_src)
{
uint32_t reg;
reg = RCU_CFG0;
/* reset the CKOUT0SRC, set according to ckout0_src */
reg &= ~RCU_CFG0_CKOUT0SEL;
RCU_CFG0 = (reg | ckout0_src);
}
/*!
\brief configure the main PLL clock
\param[in] pll_src: PLL clock source selection
only one parameter can be selected which is shown as below:
\arg RCU_PLLSRC_IRC8M_DIV2: IRC8M/2 clock selected as source clock of PLL
\arg RCU_PLLSRC_HXTAL: HXTAL selected as source clock of PLL
\param[in] pll_mul: PLL clock multiplication factor
only one parameter can be selected which is shown as below:
\arg RCU_PLL_MULx (x = 2..14, 6.5, 16..32)
\param[out] none
\retval none
*/
void rcu_pll_config(uint32_t pll_src, uint32_t pll_mul)
{
uint32_t reg = 0U;
reg = RCU_CFG0;
/* PLL clock source and multiplication factor configuration */
reg &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLMF_4);
reg |= (pll_src | pll_mul);
RCU_CFG0 = reg;
}
/*!
\brief configure the PREDV0 division factor and clock source
\param[in] predv0_source: PREDV0 input clock source selection
only one parameter can be selected which is shown as below:
\arg RCU_PREDV0SRC_HXTAL: HXTAL selected as PREDV0 input source clock
\arg RCU_PREDV0SRC_CKPLL1: CK_PLL1 selected as PREDV0 input source clock
\param[in] predv0_div: PREDV0 division factor
only one parameter can be selected which is shown as below:
\arg RCU_PREDV0_DIVx, x = 1..16
\param[out] none
\retval none
*/
void rcu_predv0_config(uint32_t predv0_source, uint32_t predv0_div)
{
uint32_t reg = 0U;
reg = RCU_CFG1;
/* reset PREDV0SEL and PREDV0 bits */
reg &= ~(RCU_CFG1_PREDV0SEL | RCU_CFG1_PREDV0);
/* set the PREDV0SEL and PREDV0 division factor */
reg |= (predv0_source | predv0_div);
RCU_CFG1 = reg;
}
/*!
\brief configure the PREDV1 division factor
\param[in] predv1_div: PREDV1 division factor
only one parameter can be selected which is shown as below:
\arg RCU_PREDV1_DIVx, x = 1..16
\param[out] none
\retval none
*/
void rcu_predv1_config(uint32_t predv1_div)
{
uint32_t reg = 0U;
reg = RCU_CFG1;
/* reset the PREDV1 bits */
reg &= ~RCU_CFG1_PREDV1;
/* set the PREDV1 division factor */
reg |= predv1_div;
RCU_CFG1 = reg;
}
/*!
\brief configure the PLL1 clock
\param[in] pll_mul: PLL clock multiplication factor
only one parameter can be selected which is shown as below:
\arg RCU_PLL1_MULx (x = 8..16, 20)
\param[out] none
\retval none
*/
void rcu_pll1_config(uint32_t pll_mul)
{
RCU_CFG1 &= ~RCU_CFG1_PLL1MF;
RCU_CFG1 |= pll_mul;
}
/*!
\brief configure the PLL2 clock
\param[in] pll_mul: PLL clock multiplication factor
only one parameter can be selected which is shown as below:
\arg RCU_PLL2_MULx (x = 8..16, 20)
\param[out] none
\retval none
*/
void rcu_pll2_config(uint32_t pll_mul)
{
RCU_CFG1 &= ~RCU_CFG1_PLL2MF;
RCU_CFG1 |= pll_mul;
}
/*!
\brief configure the ADC prescaler factor
\param[in] adc_psc: ADC prescaler factor
only one parameter can be selected which is shown as below:
\arg RCU_CKADC_CKAPB2_DIV2: ADC prescaler select CK_APB2/2
\arg RCU_CKADC_CKAPB2_DIV4: ADC prescaler select CK_APB2/4
\arg RCU_CKADC_CKAPB2_DIV6: ADC prescaler select CK_APB2/6
\arg RCU_CKADC_CKAPB2_DIV8: ADC prescaler select CK_APB2/8
\arg RCU_CKADC_CKAPB2_DIV12: ADC prescaler select CK_APB2/12
\arg RCU_CKADC_CKAPB2_DIV16: ADC prescaler select CK_APB2/16
\param[out] none
\retval none
*/
void rcu_adc_clock_config(uint32_t adc_psc)
{
uint32_t reg0;
/* reset the ADCPSC bits */
reg0 = RCU_CFG0;
reg0 &= ~(RCU_CFG0_ADCPSC_2 | RCU_CFG0_ADCPSC);
/* set the ADC prescaler factor */
switch(adc_psc){
case RCU_CKADC_CKAPB2_DIV2:
case RCU_CKADC_CKAPB2_DIV4:
case RCU_CKADC_CKAPB2_DIV6:
case RCU_CKADC_CKAPB2_DIV8:
reg0 |= (adc_psc << 14);
break;
case RCU_CKADC_CKAPB2_DIV12:
case RCU_CKADC_CKAPB2_DIV16:
adc_psc &= ~BIT(2);
reg0 |= (adc_psc << 14 | RCU_CFG0_ADCPSC_2);
break;
default:
break;
}
/* set the register */
RCU_CFG0 = reg0;
}
/*!
\brief configure the USBFS prescaler factor
\param[in] usb_psc: USB prescaler factor
only one parameter can be selected which is shown as below:
\arg RCU_CKUSB_CKPLL_DIV1_5: USBFS prescaler select CK_PLL/1.5
\arg RCU_CKUSB_CKPLL_DIV1: USBFS prescaler select CK_PLL/1
\arg RCU_CKUSB_CKPLL_DIV2_5: USBFS prescaler select CK_PLL/2.5
\arg RCU_CKUSB_CKPLL_DIV2: USBFS prescaler select CK_PLL/2
\param[out] none
\retval none
*/
void rcu_usb_clock_config(uint32_t usb_psc)
{
uint32_t reg;
reg = RCU_CFG0;
/* configure the USBFS prescaler factor */
reg &= ~RCU_CFG0_USBFSPSC;
RCU_CFG0 = (reg | usb_psc);
}
/*!
\brief configure the RTC clock source selection
\param[in] rtc_clock_source: RTC clock source selection
only one parameter can be selected which is shown as below:
\arg RCU_RTCSRC_NONE: no clock selected
\arg RCU_RTCSRC_LXTAL: CK_LXTAL selected as RTC source clock
\arg RCU_RTCSRC_IRC40K: CK_IRC40K selected as RTC source clock
\arg RCU_RTCSRC_HXTAL_DIV_128: CK_HXTAL/128 selected as RTC source clock
\param[out] none
\retval none
*/
void rcu_rtc_clock_config(uint32_t rtc_clock_source)
{
uint32_t reg;
reg = RCU_BDCTL;
/* reset the RTCSRC bits and set according to rtc_clock_source */
reg &= ~RCU_BDCTL_RTCSRC;
RCU_BDCTL = (reg | rtc_clock_source);
}
/*!
\brief configure the I2S1 clock source selection
\param[in] i2s_clock_source: I2S1 clock source selection
only one parameter can be selected which is shown as below:
\arg RCU_I2S1SRC_CKSYS: System clock selected as I2S1 source clock
\arg RCU_I2S1SRC_CKPLL2_MUL2: CK_PLL2x2 selected as I2S1 source clock
\param[out] none
\retval none
*/
void rcu_i2s1_clock_config(uint32_t i2s_clock_source)
{
uint32_t reg;
reg = RCU_CFG1;
/* reset the I2S1SEL bit and set according to i2s_clock_source */
reg &= ~RCU_CFG1_I2S1SEL;
RCU_CFG1 = (reg | i2s_clock_source);
}
/*!
\brief configure the I2S2 clock source selection
\param[in] i2s_clock_source: I2S2 clock source selection
only one parameter can be selected which is shown as below:
\arg RCU_I2S2SRC_CKSYS: system clock selected as I2S2 source clock
\arg RCU_I2S2SRC_CKPLL2_MUL2: CK_PLL2x2 selected as I2S2 source clock
\param[out] none
\retval none
*/
void rcu_i2s2_clock_config(uint32_t i2s_clock_source)
{
uint32_t reg;
reg = RCU_CFG1;
/* reset the I2S2SEL bit and set according to i2s_clock_source */
reg &= ~RCU_CFG1_I2S2SEL;
RCU_CFG1 = (reg | i2s_clock_source);
}
/*!
\brief get the clock stabilization and periphral reset flags
\param[in] flag: the clock stabilization and periphral reset flags, refer to rcu_flag_enum
only one parameter can be selected which is shown as below:
\arg RCU_FLAG_IRC8MSTB: IRC8M stabilization flag
\arg RCU_FLAG_HXTALSTB: HXTAL stabilization flag
\arg RCU_FLAG_PLLSTB: PLL stabilization flag
\arg RCU_FLAG_PLL1STB: PLL1 stabilization flag
\arg RCU_FLAG_PLL2STB: PLL2 stabilization flag
\arg RCU_FLAG_LXTALSTB: LXTAL stabilization flag
\arg RCU_FLAG_IRC40KSTB: IRC40K stabilization flag
\arg RCU_FLAG_EPRST: external PIN reset flag
\arg RCU_FLAG_PORRST: power reset flag
\arg RCU_FLAG_SWRST: software reset flag
\arg RCU_FLAG_FWDGTRST: free watchdog timer reset flag
\arg RCU_FLAG_WWDGTRST: window watchdog timer reset flag
\arg RCU_FLAG_LPRST: low-power reset flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus rcu_flag_get(rcu_flag_enum flag)
{
/* get the rcu flag */
if(RESET != (RCU_REG_VAL(flag) & BIT(RCU_BIT_POS(flag)))){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear all the reset flag
\param[in] none
\param[out] none
\retval none
*/
void rcu_all_reset_flag_clear(void)
{
RCU_RSTSCK |= RCU_RSTSCK_RSTFC;
}
/*!
\brief get the clock stabilization interrupt and ckm flags
\param[in] int_flag: interrupt and ckm flags, refer to rcu_int_flag_enum
only one parameter can be selected which is shown as below:
\arg RCU_INT_FLAG_IRC40KSTB: IRC40K stabilization interrupt flag
\arg RCU_INT_FLAG_LXTALSTB: LXTAL stabilization interrupt flag
\arg RCU_INT_FLAG_IRC8MSTB: IRC8M stabilization interrupt flag
\arg RCU_INT_FLAG_HXTALSTB: HXTAL stabilization interrupt flag
\arg RCU_INT_FLAG_PLLSTB: PLL stabilization interrupt flag
\arg RCU_INT_FLAG_PLL1STB: PLL1 stabilization interrupt flag
\arg RCU_INT_FLAG_PLL2STB: PLL2 stabilization interrupt flag
\arg RCU_INT_FLAG_CKM: HXTAL clock stuck interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus rcu_interrupt_flag_get(rcu_int_flag_enum int_flag)
{
/* get the rcu interrupt flag */
if(RESET != (RCU_REG_VAL(int_flag) & BIT(RCU_BIT_POS(int_flag)))){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear the interrupt flags
\param[in] int_flag_clear: clock stabilization and stuck interrupt flags clear, refer to rcu_int_flag_clear_enum
only one parameter can be selected which is shown as below:
\arg RCU_INT_FLAG_IRC40KSTB_CLR: IRC40K stabilization interrupt flag clear
\arg RCU_INT_FLAG_LXTALSTB_CLR: LXTAL stabilization interrupt flag clear
\arg RCU_INT_FLAG_IRC8MSTB_CLR: IRC8M stabilization interrupt flag clear
\arg RCU_INT_FLAG_HXTALSTB_CLR: HXTAL stabilization interrupt flag clear
\arg RCU_INT_FLAG_PLLSTB_CLR: PLL stabilization interrupt flag clear
\arg RCU_INT_FLAG_PLL1STB_CLR: PLL1 stabilization interrupt flag clear
\arg RCU_INT_FLAG_PLL2STB_CLR: PLL2 stabilization interrupt flag clear
\arg RCU_INT_FLAG_CKM_CLR: clock stuck interrupt flag clear
\param[out] none
\retval none
*/
void rcu_interrupt_flag_clear(rcu_int_flag_clear_enum int_flag_clear)
{
RCU_REG_VAL(int_flag_clear) |= BIT(RCU_BIT_POS(int_flag_clear));
}
/*!
\brief enable the stabilization interrupt
\param[in] stab_int: clock stabilization interrupt, refer to rcu_int_enum
Only one parameter can be selected which is shown as below:
\arg RCU_INT_IRC40KSTB: IRC40K stabilization interrupt enable
\arg RCU_INT_LXTALSTB: LXTAL stabilization interrupt enable
\arg RCU_INT_IRC8MSTB: IRC8M stabilization interrupt enable
\arg RCU_INT_HXTALSTB: HXTAL stabilization interrupt enable
\arg RCU_INT_PLLSTB: PLL stabilization interrupt enable
\arg RCU_INT_PLL1STB: PLL1 stabilization interrupt enable
\arg RCU_INT_PLL2STB: PLL2 stabilization interrupt enable
\param[out] none
\retval none
*/
void rcu_interrupt_enable(rcu_int_enum stab_int)
{
RCU_REG_VAL(stab_int) |= BIT(RCU_BIT_POS(stab_int));
}
/*!
\brief disable the stabilization interrupt
\param[in] stab_int: clock stabilization interrupt, refer to rcu_int_enum
only one parameter can be selected which is shown as below:
\arg RCU_INT_IRC40KSTB: IRC40K stabilization interrupt enable
\arg RCU_INT_LXTALSTB: LXTAL stabilization interrupt enable
\arg RCU_INT_IRC8MSTB: IRC8M stabilization interrupt enable
\arg RCU_INT_HXTALSTB: HXTAL stabilization interrupt enable
\arg RCU_INT_PLLSTB: PLL stabilization interrupt enable
\arg RCU_INT_PLL1STB: PLL1 stabilization interrupt enable
\arg RCU_INT_PLL2STB: PLL2 stabilization interrupt enable
\param[out] none
\retval none
*/
void rcu_interrupt_disable(rcu_int_enum stab_int)
{
RCU_REG_VAL(stab_int) &= ~BIT(RCU_BIT_POS(stab_int));
}
/*!
\brief wait for oscillator stabilization flags is SET or oscillator startup is timeout
\param[in] osci: oscillator types, refer to rcu_osci_type_enum
only one parameter can be selected which is shown as below:
\arg RCU_HXTAL: high speed crystal oscillator(HXTAL)
\arg RCU_LXTAL: low speed crystal oscillator(LXTAL)
\arg RCU_IRC8M: internal 8M RC oscillators(IRC8M)
\arg RCU_IRC40K: internal 40K RC oscillator(IRC40K)
\arg RCU_PLL_CK: phase locked loop(PLL)
\arg RCU_PLL1_CK: phase locked loop 1
\arg RCU_PLL2_CK: phase locked loop 2
\param[out] none
\retval ErrStatus: SUCCESS or ERROR
*/
ErrStatus rcu_osci_stab_wait(rcu_osci_type_enum osci)
{
uint32_t stb_cnt = 0U;
ErrStatus reval = ERROR;
FlagStatus osci_stat = RESET;
switch(osci){
/* wait HXTAL stable */
case RCU_HXTAL:
while((RESET == osci_stat) && (HXTAL_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_HXTALSTB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_HXTALSTB)){
reval = SUCCESS;
}
break;
/* wait LXTAL stable */
case RCU_LXTAL:
while((RESET == osci_stat) && (LXTAL_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_LXTALSTB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_LXTALSTB)){
reval = SUCCESS;
}
break;
/* wait IRC8M stable */
case RCU_IRC8M:
while((RESET == osci_stat) && (IRC8M_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_IRC8MSTB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_IRC8MSTB)){
reval = SUCCESS;
}
break;
/* wait IRC40K stable */
case RCU_IRC40K:
while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_IRC40KSTB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_IRC40KSTB)){
reval = SUCCESS;
}
break;
/* wait PLL stable */
case RCU_PLL_CK:
while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_PLLSTB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_PLLSTB)){
reval = SUCCESS;
}
break;
/* wait PLL1 stable */
case RCU_PLL1_CK:
while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_PLL1STB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_PLL1STB)){
reval = SUCCESS;
}
break;
/* wait PLL2 stable */
case RCU_PLL2_CK:
while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
osci_stat = rcu_flag_get(RCU_FLAG_PLL2STB);
stb_cnt++;
}
/* check whether flag is set or not */
if(RESET != rcu_flag_get(RCU_FLAG_PLL2STB)){
reval = SUCCESS;
}
break;
default:
break;
}
/* return value */
return reval;
}
/*!
\brief turn on the oscillator
\param[in] osci: oscillator types, refer to rcu_osci_type_enum
only one parameter can be selected which is shown as below:
\arg RCU_HXTAL: high speed crystal oscillator(HXTAL)
\arg RCU_LXTAL: low speed crystal oscillator(LXTAL)
\arg RCU_IRC8M: internal 8M RC oscillators(IRC8M)
\arg RCU_IRC40K: internal 40K RC oscillator(IRC40K)
\arg RCU_PLL_CK: phase locked loop(PLL)
\arg RCU_PLL1_CK: phase locked loop 1
\arg RCU_PLL2_CK: phase locked loop 2
\param[out] none
\retval none
*/
void rcu_osci_on(rcu_osci_type_enum osci)
{
RCU_REG_VAL(osci) |= BIT(RCU_BIT_POS(osci));
}
/*!
\brief turn off the oscillator
\param[in] osci: oscillator types, refer to rcu_osci_type_enum
only one parameter can be selected which is shown as below:
\arg RCU_HXTAL: high speed crystal oscillator(HXTAL)
\arg RCU_LXTAL: low speed crystal oscillator(LXTAL)
\arg RCU_IRC8M: internal 8M RC oscillators(IRC8M)
\arg RCU_IRC40K: internal 40K RC oscillator(IRC40K)
\arg RCU_PLL_CK: phase locked loop(PLL)
\arg RCU_PLL1_CK: phase locked loop 1
\arg RCU_PLL2_CK: phase locked loop 2
\param[out] none
\retval none
*/
void rcu_osci_off(rcu_osci_type_enum osci)
{
RCU_REG_VAL(osci) &= ~BIT(RCU_BIT_POS(osci));
}
/*!
\brief enable the oscillator bypass mode, HXTALEN or LXTALEN must be reset before it
\param[in] osci: oscillator types, refer to rcu_osci_type_enum
only one parameter can be selected which is shown as below:
\arg RCU_HXTAL: high speed crystal oscillator(HXTAL)
\arg RCU_LXTAL: low speed crystal oscillator(LXTAL)
\param[out] none
\retval none
*/
void rcu_osci_bypass_mode_enable(rcu_osci_type_enum osci)
{
uint32_t reg;
switch(osci){
/* enable HXTAL to bypass mode */
case RCU_HXTAL:
reg = RCU_CTL;
RCU_CTL &= ~RCU_CTL_HXTALEN;
RCU_CTL = (reg | RCU_CTL_HXTALBPS);
break;
/* enable LXTAL to bypass mode */
case RCU_LXTAL:
reg = RCU_BDCTL;
RCU_BDCTL &= ~RCU_BDCTL_LXTALEN;
RCU_BDCTL = (reg | RCU_BDCTL_LXTALBPS);
break;
case RCU_IRC8M:
case RCU_IRC40K:
case RCU_PLL_CK:
case RCU_PLL1_CK:
case RCU_PLL2_CK:
break;
default:
break;
}
}
/*!
\brief disable the oscillator bypass mode, HXTALEN or LXTALEN must be reset before it
\param[in] osci: oscillator types, refer to rcu_osci_type_enum
only one parameter can be selected which is shown as below:
\arg RCU_HXTAL: high speed crystal oscillator(HXTAL)
\arg RCU_LXTAL: low speed crystal oscillator(LXTAL)
\param[out] none
\retval none
*/
void rcu_osci_bypass_mode_disable(rcu_osci_type_enum osci)
{
uint32_t reg;
switch(osci){
/* disable HXTAL to bypass mode */
case RCU_HXTAL:
reg = RCU_CTL;
RCU_CTL &= ~RCU_CTL_HXTALEN;
RCU_CTL = (reg & ~RCU_CTL_HXTALBPS);
break;
/* disable LXTAL to bypass mode */
case RCU_LXTAL:
reg = RCU_BDCTL;
RCU_BDCTL &= ~RCU_BDCTL_LXTALEN;
RCU_BDCTL = (reg & ~RCU_BDCTL_LXTALBPS);
break;
case RCU_IRC8M:
case RCU_IRC40K:
case RCU_PLL_CK:
case RCU_PLL1_CK:
case RCU_PLL2_CK:
break;
default:
break;
}
}
/*!
\brief enable the HXTAL clock monitor
\param[in] none
\param[out] none
\retval none
*/
void rcu_hxtal_clock_monitor_enable(void)
{
RCU_CTL |= RCU_CTL_CKMEN;
}
/*!
\brief disable the HXTAL clock monitor
\param[in] none
\param[out] none
\retval none
*/
void rcu_hxtal_clock_monitor_disable(void)
{
RCU_CTL &= ~RCU_CTL_CKMEN;
}
/*!
\brief set the IRC8M adjust value
\param[in] irc8m_adjval: IRC8M adjust value, must be between 0 and 0x1F
\param[out] none
\retval none
*/
void rcu_irc8m_adjust_value_set(uint32_t irc8m_adjval)
{
uint32_t reg;
reg = RCU_CTL;
/* reset the IRC8MADJ bits and set according to irc8m_adjval */
reg &= ~RCU_CTL_IRC8MADJ;
RCU_CTL = (reg | ((irc8m_adjval & 0x1FU) << 3));
}
/*!
\brief deep-sleep mode voltage select
\param[in] dsvol: deep sleep mode voltage
only one parameter can be selected which is shown as below:
\arg RCU_DEEPSLEEP_V_1_2: the core voltage is 1.2V
\arg RCU_DEEPSLEEP_V_1_1: the core voltage is 1.1V
\arg RCU_DEEPSLEEP_V_1_0: the core voltage is 1.0V
\arg RCU_DEEPSLEEP_V_0_9: the core voltage is 0.9V
\param[out] none
\retval none
*/
void rcu_deepsleep_voltage_set(uint32_t dsvol)
{
dsvol &= RCU_DSV_DSLPVS;
RCU_DSV = dsvol;
}
/*!
\brief get the system clock, bus and peripheral clock frequency
\param[in] clock: the clock frequency which to get
only one parameter can be selected which is shown as below:
\arg CK_SYS: system clock frequency
\arg CK_AHB: AHB clock frequency
\arg CK_APB1: APB1 clock frequency
\arg CK_APB2: APB2 clock frequency
\param[out] none
\retval clock frequency of system, AHB, APB1, APB2
*/
uint32_t rcu_clock_freq_get(rcu_clock_freq_enum clock)
{
uint32_t sws, ck_freq = 0U;
uint32_t cksys_freq, ahb_freq, apb1_freq, apb2_freq;
uint32_t pllsel, predv0sel, pllmf,ck_src, idx, clk_exp;
uint32_t predv0, predv1, pll1mf;
/* exponent of AHB, APB1 and APB2 clock divider */
uint8_t ahb_exp[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
uint8_t apb1_exp[8] = {0, 0, 0, 0, 1, 2, 3, 4};
uint8_t apb2_exp[8] = {0, 0, 0, 0, 1, 2, 3, 4};
sws = GET_BITS(RCU_CFG0, 2, 3);
switch(sws){
/* IRC8M is selected as CK_SYS */
case SEL_IRC8M:
cksys_freq = IRC8M_VALUE;
break;
/* HXTAL is selected as CK_SYS */
case SEL_HXTAL:
cksys_freq = HXTAL_VALUE;
break;
/* PLL is selected as CK_SYS */
case SEL_PLL:
/* PLL clock source selection, HXTAL or IRC8M/2 */
pllsel = (RCU_CFG0 & RCU_CFG0_PLLSEL);
if(RCU_PLLSRC_HXTAL == pllsel) {
/* PLL clock source is HXTAL */
ck_src = HXTAL_VALUE;
predv0sel = (RCU_CFG1 & RCU_CFG1_PREDV0SEL);
/* source clock use PLL1 */
if(RCU_PREDV0SRC_CKPLL1 == predv0sel){
predv1 = (uint32_t)((RCU_CFG1 & RCU_CFG1_PREDV1) >> 4) + 1U;
pll1mf = (uint32_t)((RCU_CFG1 & RCU_CFG1_PLL1MF) >> 8) + 2U;
if(17U == pll1mf){
pll1mf = 20U;
}
ck_src = (ck_src / predv1) * pll1mf;
}
predv0 = (RCU_CFG1 & RCU_CFG1_PREDV0) + 1U;
ck_src /= predv0;
}else{
/* PLL clock source is IRC8M/2 */
ck_src = IRC8M_VALUE/2U;
}
/* PLL multiplication factor */
pllmf = GET_BITS(RCU_CFG0, 18, 21);
if((RCU_CFG0 & RCU_CFG0_PLLMF_4)){
pllmf |= 0x10U;
}
if(pllmf < 15U){
pllmf += 2U;
}else{
pllmf += 1U;
}
cksys_freq = ck_src * pllmf;
if(15U == pllmf){
/* PLL source clock multiply by 6.5 */
cksys_freq = ck_src * 6U + ck_src / 2U;
}
break;
/* IRC8M is selected as CK_SYS */
default:
cksys_freq = IRC8M_VALUE;
break;
}
/* calculate AHB clock frequency */
idx = GET_BITS(RCU_CFG0, 4, 7);
clk_exp = ahb_exp[idx];
ahb_freq = cksys_freq >> clk_exp;
/* calculate APB1 clock frequency */
idx = GET_BITS(RCU_CFG0, 8, 10);
clk_exp = apb1_exp[idx];
apb1_freq = ahb_freq >> clk_exp;
/* calculate APB2 clock frequency */
idx = GET_BITS(RCU_CFG0, 11, 13);
clk_exp = apb2_exp[idx];
apb2_freq = ahb_freq >> clk_exp;
/* return the clocks frequency */
switch(clock){
case CK_SYS:
ck_freq = cksys_freq;
break;
case CK_AHB:
ck_freq = ahb_freq;
break;
case CK_APB1:
ck_freq = apb1_freq;
break;
case CK_APB2:
ck_freq = apb2_freq;
break;
default:
break;
}
return ck_freq;
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_rtc.c
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/*!
\file gd32vf103_rtc.c
\brief RTC driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_rtc.h"
/* RTC register high / low bits mask */
#define RTC_HIGH_BITS_MASK ((uint32_t)0x000F0000U) /* RTC high bits mask */
#define RTC_LOW_BITS_MASK ((uint32_t)0x0000FFFFU) /* RTC low bits mask */
/* RTC register high bits offset */
#define RTC_HIGH_BITS_OFFSET ((uint32_t)16U)
/*!
\brief enter RTC configuration mode
\param[in] none
\param[out] none
\retval none
*/
void rtc_configuration_mode_enter(void)
{
RTC_CTL |= RTC_CTL_CMF;
}
/*!
\brief exit RTC configuration mode
\param[in] none
\param[out] none
\retval none
*/
void rtc_configuration_mode_exit(void)
{
RTC_CTL &= ~RTC_CTL_CMF;
}
/*!
\brief set RTC counter value
\param[in] cnt: RTC counter value
\param[out] none
\retval none
*/
void rtc_counter_set(uint32_t cnt)
{
rtc_configuration_mode_enter();
/* set the RTC counter high bits */
RTC_CNTH = (cnt >> RTC_HIGH_BITS_OFFSET);
/* set the RTC counter low bits */
RTC_CNTL = (cnt & RTC_LOW_BITS_MASK);
rtc_configuration_mode_exit();
}
/*!
\brief set RTC prescaler value
\param[in] psc: RTC prescaler value
\param[out] none
\retval none
*/
void rtc_prescaler_set(uint32_t psc)
{
rtc_configuration_mode_enter();
/* set the RTC prescaler high bits */
RTC_PSCH = ((psc & RTC_HIGH_BITS_MASK) >> RTC_HIGH_BITS_OFFSET);
/* set the RTC prescaler low bits */
RTC_PSCL = (psc & RTC_LOW_BITS_MASK);
rtc_configuration_mode_exit();
}
/*!
\brief wait RTC last write operation finished flag set
\param[in] none
\param[out] none
\retval none
*/
void rtc_lwoff_wait(void)
{
/* loop until LWOFF flag is set */
while(RESET == (RTC_CTL & RTC_CTL_LWOFF)){
}
}
/*!
\brief wait RTC registers synchronized flag set
\param[in] none
\param[out] none
\retval none
*/
void rtc_register_sync_wait(void)
{
/* clear RSYNF flag */
RTC_CTL &= ~RTC_CTL_RSYNF;
/* loop until RSYNF flag is set */
while(RESET == (RTC_CTL & RTC_CTL_RSYNF)){
}
}
/*!
\brief set RTC alarm value
\param[in] alarm: RTC alarm value
\param[out] none
\retval none
*/
void rtc_alarm_config(uint32_t alarm)
{
rtc_configuration_mode_enter();
/* set the alarm high bits */
RTC_ALRMH = (alarm >> RTC_HIGH_BITS_OFFSET);
/* set the alarm low bits */
RTC_ALRML = (alarm & RTC_LOW_BITS_MASK);
rtc_configuration_mode_exit();
}
/*!
\brief get RTC counter value
\param[in] none
\param[out] none
\retval RTC counter value
*/
uint32_t rtc_counter_get(void)
{
uint32_t temp = 0x0U;
temp = RTC_CNTL;
temp |= (RTC_CNTH << RTC_HIGH_BITS_OFFSET);
return temp;
}
/*!
\brief get RTC divider value
\param[in] none
\param[out] none
\retval RTC divider value
*/
uint32_t rtc_divider_get(void)
{
uint32_t temp = 0x00U;
temp = ((RTC_DIVH & RTC_DIVH_DIV) << RTC_HIGH_BITS_OFFSET);
temp |= RTC_DIVL;
return temp;
}
/*!
\brief get RTC flag status
\param[in] flag: specify which flag status to get
only one parameter can be selected which is shown as below:
\arg RTC_FLAG_SECOND: second interrupt flag
\arg RTC_FLAG_ALARM: alarm interrupt flag
\arg RTC_FLAG_OVERFLOW: overflow interrupt flag
\arg RTC_FLAG_RSYN: registers synchronized flag
\arg RTC_FLAG_LWOF: last write operation finished flag
\param[out] none
\retval SET or RESET
*/
FlagStatus rtc_flag_get(uint32_t flag)
{
if(RESET != (RTC_CTL & flag)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear RTC flag status
\param[in] flag: specify which flag status to clear
one or more parameters can be selected which are shown as below:
\arg RTC_FLAG_SECOND: second interrupt flag
\arg RTC_FLAG_ALARM: alarm interrupt flag
\arg RTC_FLAG_OVERFLOW: overflow interrupt flag
\arg RTC_FLAG_RSYN: registers synchronized flag
\param[out] none
\retval none
*/
void rtc_flag_clear(uint32_t flag)
{
/* clear RTC flag */
RTC_CTL &= ~flag;
}
/*!
\brief get RTC interrupt flag status
\param[in] flag: specify which flag status to get
only one parameter can be selected which is shown as below:
\arg RTC_INT_FLAG_SECOND: second interrupt flag
\arg RTC_INT_FLAG_ALARM: alarm interrupt flag
\arg RTC_INT_FLAG_OVERFLOW: overflow interrupt flag
\param[out] none
\retval SET or RESET
*/
FlagStatus rtc_interrupt_flag_get(uint32_t flag)
{
if(RESET != (RTC_CTL & flag)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear RTC interrupt flag status
\param[in] flag: specify which flag status to clear
one or more parameters can be selected which are shown as below:
\arg RTC_INT_FLAG_SECOND: second interrupt flag
\arg RTC_INT_FLAG_ALARM: alarm interrupt flag
\arg RTC_INT_FLAG_OVERFLOW: overflow interrupt flag
\param[out] none
\retval none
*/
void rtc_interrupt_flag_clear(uint32_t flag)
{
/* clear RTC interrupt flag */
RTC_CTL &= ~flag;
}
/*!
\brief enable RTC interrupt
\param[in] interrupt: specify which interrupt to enbale
one or more parameters can be selected which are shown as below:
\arg RTC_INT_SECOND: second interrupt
\arg RTC_INT_ALARM: alarm interrupt
\arg RTC_INT_OVERFLOW: overflow interrupt
\param[out] none
\retval none
*/
void rtc_interrupt_enable(uint32_t interrupt)
{
RTC_INTEN |= interrupt;
}
/*!
\brief disable RTC interrupt
\param[in] interrupt: specify which interrupt to disbale
one or more parameters can be selected which are shown as below:
\arg RTC_INT_SECOND: second interrupt
\arg RTC_INT_ALARM: alarm interrupt
\arg RTC_INT_OVERFLOW: overflow interrupt
\param[out] none
\retval none
*/
void rtc_interrupt_disable(uint32_t interrupt)
{
RTC_INTEN &= ~interrupt;
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_spi.c
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/*!
\file gd32vf103_spi.c
\brief SPI driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_spi.h"
/* SPI/I2S parameter initialization mask */
#define SPI_INIT_MASK ((uint32_t)0x00003040U) /*!< SPI parameter initialization mask */
#define I2S_INIT_MASK ((uint32_t)0x0000F047U) /*!< I2S parameter initialization mask */
/* I2S clock source selection, multiplication and division mask */
#define I2S1_CLOCK_SEL ((uint32_t)0x00020000U) /* I2S1 clock source selection */
#define I2S2_CLOCK_SEL ((uint32_t)0x00040000U) /* I2S2 clock source selection */
#define I2S_CLOCK_MUL_MASK ((uint32_t)0x0000F000U) /* I2S clock multiplication mask */
#define I2S_CLOCK_DIV_MASK ((uint32_t)0x000000F0U) /* I2S clock division mask */
/* default value and offset */
#define SPI_I2SPSC_DEFAULT_VALUE ((uint32_t)0x00000002U) /* default value of SPI_I2SPSC register */
#define RCU_CFG1_PREDV1_OFFSET 4U /* PREDV1 offset in RCU_CFG1 */
#define RCU_CFG1_PLL2MF_OFFSET 12U /* PLL2MF offset in RCU_CFG1 */
/*!
\brief reset SPI and I2S
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_i2s_deinit(uint32_t spi_periph)
{
switch(spi_periph){
case SPI0:
/* reset SPI0 */
rcu_periph_reset_enable(RCU_SPI0RST);
rcu_periph_reset_disable(RCU_SPI0RST);
break;
case SPI1:
/* reset SPI1 and I2S1 */
rcu_periph_reset_enable(RCU_SPI1RST);
rcu_periph_reset_disable(RCU_SPI1RST);
break;
case SPI2:
/* reset SPI2 and I2S2 */
rcu_periph_reset_enable(RCU_SPI2RST);
rcu_periph_reset_disable(RCU_SPI2RST);
break;
default :
break;
}
}
/*!
\brief initialize the parameters of SPI struct with the default values
\param[in] spi_struct: SPI parameter stuct
\param[out] none
\retval none
*/
void spi_struct_para_init(spi_parameter_struct* spi_struct)
{
/* set the SPI struct with the default values */
spi_struct->device_mode = SPI_SLAVE;
spi_struct->trans_mode = SPI_TRANSMODE_FULLDUPLEX;
spi_struct->frame_size = SPI_FRAMESIZE_8BIT;
spi_struct->nss = SPI_NSS_HARD;
spi_struct->clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
spi_struct->prescale = SPI_PSC_2;
}
/*!
\brief initialize SPI parameter
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] spi_struct: SPI parameter initialization stuct members of the structure
and the member values are shown as below:
device_mode: SPI_MASTER, SPI_SLAVE
trans_mode: SPI_TRANSMODE_FULLDUPLEX, SPI_TRANSMODE_RECEIVEONLY,
SPI_TRANSMODE_BDRECEIVE, SPI_TRANSMODE_BDTRANSMIT
frame_size: SPI_FRAMESIZE_16BIT, SPI_FRAMESIZE_8BIT
nss: SPI_NSS_SOFT, SPI_NSS_HARD
endian: SPI_ENDIAN_MSB, SPI_ENDIAN_LSB
clock_polarity_phase: SPI_CK_PL_LOW_PH_1EDGE, SPI_CK_PL_HIGH_PH_1EDGE
SPI_CK_PL_LOW_PH_2EDGE, SPI_CK_PL_HIGH_PH_2EDGE
prescale: SPI_PSC_n (n=2,4,8,16,32,64,128,256)
\param[out] none
\retval none
*/
void spi_init(uint32_t spi_periph, spi_parameter_struct* spi_struct)
{
uint32_t reg = 0U;
reg = SPI_CTL0(spi_periph);
reg &= SPI_INIT_MASK;
/* select SPI as master or slave */
reg |= spi_struct->device_mode;
/* select SPI transfer mode */
reg |= spi_struct->trans_mode;
/* select SPI frame size */
reg |= spi_struct->frame_size;
/* select SPI NSS use hardware or software */
reg |= spi_struct->nss;
/* select SPI LSB or MSB */
reg |= spi_struct->endian;
/* select SPI polarity and phase */
reg |= spi_struct->clock_polarity_phase;
/* select SPI prescale to adjust transmit speed */
reg |= spi_struct->prescale;
/* write to SPI_CTL0 register */
SPI_CTL0(spi_periph) = (uint32_t)reg;
SPI_I2SCTL(spi_periph) &= (uint32_t)(~SPI_I2SCTL_I2SSEL);
}
/*!
\brief enable SPI
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_enable(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_SPIEN;
}
/*!
\brief disable SPI
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_disable(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SPIEN);
}
/*!
\brief initialize I2S parameter
\param[in] spi_periph: SPIx(x=1,2)
\param[in] mode: I2S operation mode
only one parameter can be selected which is shown as below:
\arg I2S_MODE_SLAVETX: I2S slave transmit mode
\arg I2S_MODE_SLAVERX: I2S slave receive mode
\arg I2S_MODE_MASTERTX: I2S master transmit mode
\arg I2S_MODE_MASTERRX: I2S master receive mode
\param[in] standard: I2S standard
only one parameter can be selected which is shown as below:
\arg I2S_STD_PHILLIPS: I2S phillips standard
\arg I2S_STD_MSB: I2S MSB standard
\arg I2S_STD_LSB: I2S LSB standard
\arg I2S_STD_PCMSHORT: I2S PCM short standard
\arg I2S_STD_PCMLONG: I2S PCM long standard
\param[in] ckpl: I2S idle state clock polarity
only one parameter can be selected which is shown as below:
\arg I2S_CKPL_LOW: I2S clock polarity low level
\arg I2S_CKPL_HIGH: I2S clock polarity high level
\param[out] none
\retval none
*/
void i2s_init(uint32_t spi_periph, uint32_t mode, uint32_t standard, uint32_t ckpl)
{
uint32_t reg = 0U;
reg = SPI_I2SCTL(spi_periph);
reg &= I2S_INIT_MASK;
/* enable I2S mode */
reg |= (uint32_t)SPI_I2SCTL_I2SSEL;
/* select I2S mode */
reg |= (uint32_t)mode;
/* select I2S standard */
reg |= (uint32_t)standard;
/* select I2S polarity */
reg |= (uint32_t)ckpl;
/* write to SPI_I2SCTL register */
SPI_I2SCTL(spi_periph) = (uint32_t)reg;
}
/*!
\brief configure I2S prescaler
\param[in] spi_periph: SPIx(x=1,2)
\param[in] audiosample: I2S audio sample rate
only one parameter can be selected which is shown as below:
\arg I2S_AUDIOSAMPLE_8K: audio sample rate is 8KHz
\arg I2S_AUDIOSAMPLE_11K: audio sample rate is 11KHz
\arg I2S_AUDIOSAMPLE_16K: audio sample rate is 16KHz
\arg I2S_AUDIOSAMPLE_22K: audio sample rate is 22KHz
\arg I2S_AUDIOSAMPLE_32K: audio sample rate is 32KHz
\arg I2S_AUDIOSAMPLE_44K: audio sample rate is 44KHz
\arg I2S_AUDIOSAMPLE_48K: audio sample rate is 48KHz
\arg I2S_AUDIOSAMPLE_96K: audio sample rate is 96KHz
\arg I2S_AUDIOSAMPLE_192K: audio sample rate is 192KHz
\param[in] frameformat: I2S data length and channel length
only one parameter can be selected which is shown as below:
\arg I2S_FRAMEFORMAT_DT16B_CH16B: I2S data length is 16 bit and channel length is 16 bit
\arg I2S_FRAMEFORMAT_DT16B_CH32B: I2S data length is 16 bit and channel length is 32 bit
\arg I2S_FRAMEFORMAT_DT24B_CH32B: I2S data length is 24 bit and channel length is 32 bit
\arg I2S_FRAMEFORMAT_DT32B_CH32B: I2S data length is 32 bit and channel length is 32 bit
\param[in] mckout: I2S master clock output
only one parameter can be selected which is shown as below:
\arg I2S_MCKOUT_ENABLE: I2S master clock output enable
\arg I2S_MCKOUT_DISABLE: I2S master clock output disable
\param[out] none
\retval none
*/
void i2s_psc_config(uint32_t spi_periph, uint32_t audiosample, uint32_t frameformat, uint32_t mckout)
{
uint32_t i2sdiv = 2U, i2sof = 0U;
uint32_t clks = 0U;
uint32_t i2sclock = 0U;
/* deinit SPI_I2SPSC register */
SPI_I2SPSC(spi_periph) = SPI_I2SPSC_DEFAULT_VALUE;
/* get the I2S clock source */
if(SPI1 == ((uint32_t)spi_periph)){
/* I2S1 clock source selection */
clks = I2S1_CLOCK_SEL;
}else{
/* I2S2 clock source selection */
clks = I2S2_CLOCK_SEL;
}
if(0U != (RCU_CFG1 & clks)){
/* get RCU PLL2 clock multiplication factor */
clks = (uint32_t)((RCU_CFG1 & I2S_CLOCK_MUL_MASK) >> RCU_CFG1_PLL2MF_OFFSET);
if((clks > 5U) && (clks < 15U)){
/* multiplier is between 8 and 16 */
clks += 2U;
}else{
if(15U == clks){
/* multiplier is 20 */
clks = 20U;
}
}
/* get the PREDV1 value */
i2sclock = (uint32_t)(((RCU_CFG1 & I2S_CLOCK_DIV_MASK) >> RCU_CFG1_PREDV1_OFFSET) + 1U);
/* calculate I2S clock based on PLL2 and PREDV1 */
i2sclock = (uint32_t)((HXTAL_VALUE / i2sclock) * clks * 2U);
}else{
/* get system clock */
i2sclock = rcu_clock_freq_get(CK_SYS);
}
/* config the prescaler depending on the mclk output state, the frame format and audio sample rate */
if(I2S_MCKOUT_ENABLE == mckout){
clks = (uint32_t)(((i2sclock / 256U) * 10U) / audiosample);
}else{
if(I2S_FRAMEFORMAT_DT16B_CH16B == frameformat){
clks = (uint32_t)(((i2sclock / 32U) *10U ) / audiosample);
}else{
clks = (uint32_t)(((i2sclock / 64U) *10U ) / audiosample);
}
}
/* remove the floating point */
clks = (clks + 5U) / 10U;
i2sof = (clks & 0x00000001U);
i2sdiv = ((clks - i2sof) / 2U);
i2sof = (i2sof << 8U);
/* set the default values */
if((i2sdiv < 2U) || (i2sdiv > 255U)){
i2sdiv = 2U;
i2sof = 0U;
}
/* configure SPI_I2SPSC */
SPI_I2SPSC(spi_periph) = (uint32_t)(i2sdiv | i2sof | mckout);
/* clear SPI_I2SCTL_DTLEN and SPI_I2SCTL_CHLEN bits */
SPI_I2SCTL(spi_periph) &= (uint32_t)(~(SPI_I2SCTL_DTLEN | SPI_I2SCTL_CHLEN));
/* configure data frame format */
SPI_I2SCTL(spi_periph) |= (uint32_t)frameformat;
}
/*!
\brief enable I2S
\param[in] spi_periph: SPIx(x=1,2)
\param[out] none
\retval none
*/
void i2s_enable(uint32_t spi_periph)
{
SPI_I2SCTL(spi_periph) |= (uint32_t)SPI_I2SCTL_I2SEN;
}
/*!
\brief disable I2S
\param[in] spi_periph: SPIx(x=1,2)
\param[out] none
\retval none
*/
void i2s_disable(uint32_t spi_periph)
{
SPI_I2SCTL(spi_periph) &= (uint32_t)(~SPI_I2SCTL_I2SEN);
}
/*!
\brief enable SPI NSS output
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_nss_output_enable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_NSSDRV;
}
/*!
\brief disable SPI NSS output
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_nss_output_disable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_NSSDRV);
}
/*!
\brief SPI NSS pin high level in software mode
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_nss_internal_high(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_SWNSS;
}
/*!
\brief SPI NSS pin low level in software mode
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_nss_internal_low(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SWNSS);
}
/*!
\brief enable SPI DMA send or receive
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] dma: SPI DMA mode
only one parameter can be selected which is shown as below:
\arg SPI_DMA_TRANSMIT: SPI transmit data using DMA
\arg SPI_DMA_RECEIVE: SPI receive data using DMA
\param[out] none
\retval none
*/
void spi_dma_enable(uint32_t spi_periph, uint8_t dma)
{
if(SPI_DMA_TRANSMIT == dma){
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_DMATEN;
}else{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_DMAREN;
}
}
/*!
\brief disable SPI DMA send or receive
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] dma: SPI DMA mode
only one parameter can be selected which is shown as below:
\arg SPI_DMA_TRANSMIT: SPI transmit data using DMA
\arg SPI_DMA_RECEIVE: SPI receive data using DMA
\param[out] none
\retval none
*/
void spi_dma_disable(uint32_t spi_periph, uint8_t dma)
{
if(SPI_DMA_TRANSMIT == dma){
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DMATEN);
}else{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DMAREN);
}
}
/*!
\brief configure SPI/I2S data frame format
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] frame_format: SPI frame size
only one parameter can be selected which is shown as below:
\arg SPI_FRAMESIZE_16BIT: SPI frame size is 16 bits
\arg SPI_FRAMESIZE_8BIT: SPI frame size is 8 bits
\param[out] none
\retval none
*/
void spi_i2s_data_frame_format_config(uint32_t spi_periph, uint16_t frame_format)
{
/* clear SPI_CTL0_FF16 bit */
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_FF16);
/* configure SPI_CTL0_FF16 bit */
SPI_CTL0(spi_periph) |= (uint32_t)frame_format;
}
/*!
\brief SPI transmit data
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] data: 16-bit data
\param[out] none
\retval none
*/
void spi_i2s_data_transmit(uint32_t spi_periph, uint16_t data)
{
SPI_DATA(spi_periph) = (uint32_t)data;
}
/*!
\brief SPI receive data
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval 16-bit data
*/
uint16_t spi_i2s_data_receive(uint32_t spi_periph)
{
return ((uint16_t)SPI_DATA(spi_periph));
}
/*!
\brief configure SPI bidirectional transfer direction
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] transfer_direction: SPI transfer direction
only one parameter can be selected which is shown as below:
\arg SPI_BIDIRECTIONAL_TRANSMIT: SPI work in transmit-only mode
\arg SPI_BIDIRECTIONAL_RECEIVE: SPI work in receive-only mode
\param[out] none
\retval none
*/
void spi_bidirectional_transfer_config(uint32_t spi_periph, uint32_t transfer_direction)
{
if(SPI_BIDIRECTIONAL_TRANSMIT == transfer_direction){
/* set the transmit-only mode */
SPI_CTL0(spi_periph) |= (uint32_t)SPI_BIDIRECTIONAL_TRANSMIT;
}else{
/* set the receive-only mode */
SPI_CTL0(spi_periph) &= SPI_BIDIRECTIONAL_RECEIVE;
}
}
/*!
\brief set SPI CRC polynomial
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] crc_poly: CRC polynomial value
\param[out] none
\retval none
*/
void spi_crc_polynomial_set(uint32_t spi_periph,uint16_t crc_poly)
{
/* enable SPI CRC */
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCEN;
/* set SPI CRC polynomial */
SPI_CRCPOLY(spi_periph) = (uint32_t)crc_poly;
}
/*!
\brief get SPI CRC polynomial
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval 16-bit CRC polynomial
*/
uint16_t spi_crc_polynomial_get(uint32_t spi_periph)
{
return ((uint16_t)SPI_CRCPOLY(spi_periph));
}
/*!
\brief turn on CRC function
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_crc_on(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCEN;
}
/*!
\brief turn off CRC function
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_crc_off(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_CRCEN);
}
/*!
\brief SPI next data is CRC value
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_crc_next(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCNT;
}
/*!
\brief get SPI CRC send value or receive value
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] crc: SPI crc value
only one parameter can be selected which is shown as below:
\arg SPI_CRC_TX: get transmit crc value
\arg SPI_CRC_RX: get receive crc value
\param[out] none
\retval 16-bit CRC value
*/
uint16_t spi_crc_get(uint32_t spi_periph,uint8_t crc)
{
if(SPI_CRC_TX == crc){
return ((uint16_t)(SPI_TCRC(spi_periph)));
}else{
return ((uint16_t)(SPI_RCRC(spi_periph)));
}
}
/*!
\brief enable SPI TI mode
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_ti_mode_enable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_TMOD;
}
/*!
\brief disable SPI TI mode
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_ti_mode_disable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TMOD);
}
/*!
\brief enable SPI NSS pulse mode
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_nssp_mode_enable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_NSSP;
}
/*!
\brief disable SPI NSS pulse mode
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_nssp_mode_disable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_NSSP);
}
/*!
\brief enable SPI and I2S interrupt
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] interrupt: SPI/I2S interrupt
only one parameter can be selected which is shown as below:
\arg SPI_I2S_INT_TBE: transmit buffer empty interrupt
\arg SPI_I2S_INT_RBNE: receive buffer not empty interrupt
\arg SPI_I2S_INT_ERR: CRC error,configuration error,reception overrun error,
transmission underrun error and format error interrupt
\param[out] none
\retval none
*/
void spi_i2s_interrupt_enable(uint32_t spi_periph, uint8_t interrupt)
{
switch(interrupt){
/* SPI/I2S transmit buffer empty interrupt */
case SPI_I2S_INT_TBE:
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_TBEIE;
break;
/* SPI/I2S receive buffer not empty interrupt */
case SPI_I2S_INT_RBNE:
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_RBNEIE;
break;
/* SPI/I2S error */
case SPI_I2S_INT_ERR:
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_ERRIE;
break;
default:
break;
}
}
/*!
\brief disable SPI and I2S interrupt
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] interrupt: SPI/I2S interrupt
only one parameter can be selected which is shown as below:
\arg SPI_I2S_INT_TBE: transmit buffer empty interrupt
\arg SPI_I2S_INT_RBNE: receive buffer not empty interrupt
\arg SPI_I2S_INT_ERR: CRC error,configuration error,reception overrun error,
transmission underrun error and format error interrupt
\param[out] none
\retval none
*/
void spi_i2s_interrupt_disable(uint32_t spi_periph, uint8_t interrupt)
{
switch(interrupt){
/* SPI/I2S transmit buffer empty interrupt */
case SPI_I2S_INT_TBE:
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TBEIE);
break;
/* SPI/I2S receive buffer not empty interrupt */
case SPI_I2S_INT_RBNE:
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_RBNEIE);
break;
/* SPI/I2S error */
case SPI_I2S_INT_ERR:
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_ERRIE);
break;
default:
break;
}
}
/*!
\brief get SPI and I2S interrupt flag status
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] interrupt: SPI/I2S interrupt flag status
only one parameter can be selected which is shown as below:
\arg SPI_I2S_INT_FLAG_TBE: transmit buffer empty interrupt flag
\arg SPI_I2S_INT_FLAG_RBNE: receive buffer not empty interrupt flag
\arg SPI_I2S_INT_FLAG_RXORERR: overrun interrupt flag
\arg SPI_INT_FLAG_CONFERR: config error interrupt flag
\arg SPI_INT_FLAG_CRCERR: CRC error interrupt flag
\arg I2S_INT_FLAG_TXURERR: underrun error interrupt flag
\arg SPI_I2S_INT_FLAG_FERR: format error interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus spi_i2s_interrupt_flag_get(uint32_t spi_periph, uint8_t interrupt)
{
uint32_t reg1 = SPI_STAT(spi_periph);
uint32_t reg2 = SPI_CTL1(spi_periph);
switch(interrupt){
/* SPI/I2S transmit buffer empty interrupt */
case SPI_I2S_INT_FLAG_TBE:
reg1 = reg1 & SPI_STAT_TBE;
reg2 = reg2 & SPI_CTL1_TBEIE;
break;
/* SPI/I2S receive buffer not empty interrupt */
case SPI_I2S_INT_FLAG_RBNE:
reg1 = reg1 & SPI_STAT_RBNE;
reg2 = reg2 & SPI_CTL1_RBNEIE;
break;
/* SPI/I2S overrun interrupt */
case SPI_I2S_INT_FLAG_RXORERR:
reg1 = reg1 & SPI_STAT_RXORERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* SPI config error interrupt */
case SPI_INT_FLAG_CONFERR:
reg1 = reg1 & SPI_STAT_CONFERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* SPI CRC error interrupt */
case SPI_INT_FLAG_CRCERR:
reg1 = reg1 & SPI_STAT_CRCERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* I2S underrun error interrupt */
case I2S_INT_FLAG_TXURERR:
reg1 = reg1 & SPI_STAT_TXURERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* SPI/I2S format error interrupt */
case SPI_I2S_INT_FLAG_FERR:
reg1 = reg1 & SPI_STAT_FERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
default:
break;
}
/* get SPI/I2S interrupt flag status */
if((0U != reg1) && (0U != reg2)){
return SET;
}else{
return RESET;
}
}
/*!
\brief get SPI and I2S flag status
\param[in] spi_periph: SPIx(x=0,1,2)
\param[in] flag: SPI/I2S flag status
one or more parameters can be selected which are shown as below:
\arg SPI_FLAG_TBE: transmit buffer empty flag
\arg SPI_FLAG_RBNE: receive buffer not empty flag
\arg SPI_FLAG_TRANS: transmit on-going flag
\arg SPI_FLAG_RXORERR: receive overrun error flag
\arg SPI_FLAG_CONFERR: mode config error flag
\arg SPI_FLAG_CRCERR: CRC error flag
\arg SPI_FLAG_FERR: format error interrupt flag
\arg I2S_FLAG_TBE: transmit buffer empty flag
\arg I2S_FLAG_RBNE: receive buffer not empty flag
\arg I2S_FLAG_TRANS: transmit on-going flag
\arg I2S_FLAG_RXORERR: overrun error flag
\arg I2S_FLAG_TXURERR: underrun error flag
\arg I2S_FLAG_CH: channel side flag
\arg I2S_FLAG_FERR: format error interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus spi_i2s_flag_get(uint32_t spi_periph, uint32_t flag)
{
if(RESET != (SPI_STAT(spi_periph) & flag)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear SPI CRC error flag status
\param[in] spi_periph: SPIx(x=0,1,2)
\param[out] none
\retval none
*/
void spi_crc_error_clear(uint32_t spi_periph)
{
SPI_STAT(spi_periph) &= (uint32_t)(~SPI_FLAG_CRCERR);
}

1966
RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_timer.c
Unescape View File

@ -0,0 +1,1966 @@
/*!
\file gd32vf103_timer.c
\brief TIMER driver
\version 2019-06-05, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_timer.h"
/* TIMER init parameter mask */
#define ALIGNEDMODE_MASK ((uint32_t)0x00000060U) /*!< TIMER init parameter aligne dmode mask */
#define COUNTERDIRECTION_MASK ((uint32_t)0x00000010U) /*!< TIMER init parameter counter direction mask */
#define CLOCKDIVISION_MASK ((uint32_t)0x00000300U) /*!< TIMER init parameter clock division value mask */
/*!
\brief deinit a timer
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_deinit(uint32_t timer_periph)
{
switch(timer_periph){
case TIMER0:
/* reset TIMER0 */
rcu_periph_reset_enable(RCU_TIMER0RST);
rcu_periph_reset_disable(RCU_TIMER0RST);
break;
case TIMER1:
/* reset TIMER1 */
rcu_periph_reset_enable(RCU_TIMER1RST);
rcu_periph_reset_disable(RCU_TIMER1RST);
break;
case TIMER2:
/* reset TIMER2 */
rcu_periph_reset_enable(RCU_TIMER2RST);
rcu_periph_reset_disable(RCU_TIMER2RST);
break;
case TIMER3:
/* reset TIMER3 */
rcu_periph_reset_enable(RCU_TIMER3RST);
rcu_periph_reset_disable(RCU_TIMER3RST);
break;
case TIMER4:
/* reset TIMER4 */
rcu_periph_reset_enable(RCU_TIMER4RST);
rcu_periph_reset_disable(RCU_TIMER4RST);
break;
case TIMER5:
/* reset TIMER5 */
rcu_periph_reset_enable(RCU_TIMER5RST);
rcu_periph_reset_disable(RCU_TIMER5RST);
break;
case TIMER6:
/* reset TIMER6 */
rcu_periph_reset_enable(RCU_TIMER6RST);
rcu_periph_reset_disable(RCU_TIMER6RST);
break;
default:
break;
}
}
/*!
\brief initialize TIMER init parameter struct with a default value
\param[in] initpara: init parameter struct
\param[out] none
\retval none
*/
void timer_struct_para_init(timer_parameter_struct* initpara)
{
/* initialize the init parameter struct member with the default value */
initpara->prescaler = 0U;
initpara->alignedmode = TIMER_COUNTER_EDGE;
initpara->counterdirection = TIMER_COUNTER_UP;
initpara->period = 65535U;
initpara->clockdivision = TIMER_CKDIV_DIV1;
initpara->repetitioncounter = 0U;
}
/*!
\brief initialize TIMER counter
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] initpara: init parameter struct
prescaler: prescaler value of the counter clock, 0~65535
alignedmode: TIMER_COUNTER_EDGE, TIMER_COUNTER_CENTER_DOWN, TIMER_COUNTER_CENTER_UP,
TIMER_COUNTER_CENTER_BOTH
counterdirection: TIMER_COUNTER_UP, TIMER_COUNTER_DOWN
period: counter auto reload value, 0~65535
clockdivision: TIMER_CKDIV_DIV1, TIMER_CKDIV_DIV2, TIMER_CKDIV_DIV4
repetitioncounter: counter repetition value, 0~255
\param[out] none
\retval none
*/
void timer_init(uint32_t timer_periph, timer_parameter_struct* initpara)
{
/* configure the counter prescaler value */
TIMER_PSC(timer_periph) = (uint16_t)initpara->prescaler;
/* configure the counter direction and aligned mode */
if((TIMER0 == timer_periph) || (TIMER1 == timer_periph) || (TIMER2 == timer_periph)
|| (TIMER3 == timer_periph) || (TIMER4 == timer_periph) ){
TIMER_CTL0(timer_periph) &= (~(uint32_t)(TIMER_CTL0_DIR | TIMER_CTL0_CAM));
TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->alignedmode & ALIGNEDMODE_MASK);
TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->counterdirection & COUNTERDIRECTION_MASK);
}else{
TIMER_CTL0(timer_periph) &= (uint32_t)(~ TIMER_CTL0_DIR);
TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->counterdirection & COUNTERDIRECTION_MASK);
}
/* configure the autoreload value */
TIMER_CAR(timer_periph) = (uint32_t)initpara->period;
if((TIMER5 != timer_periph) && (TIMER6 != timer_periph)){
/* reset the CKDIV bit */
TIMER_CTL0(timer_periph) &= (~(uint32_t)TIMER_CTL0_CKDIV);
TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->clockdivision & CLOCKDIVISION_MASK);
}
if (TIMER0 == timer_periph) {
/* configure the repetition counter value */
TIMER_CREP(timer_periph) = (uint32_t)initpara->repetitioncounter;
}
/* generate an update event */
TIMER_SWEVG(timer_periph) |= (uint32_t)TIMER_SWEVG_UPG;
}
/*!
\brief enable a timer
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_enable(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_CEN;
}
/*!
\brief disable a timer
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_disable(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_CEN;
}
/*!
\brief enable the auto reload shadow function
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_auto_reload_shadow_enable(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_ARSE;
}
/*!
\brief disable the auto reload shadow function
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_auto_reload_shadow_disable(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_ARSE;
}
/*!
\brief enable the update event
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_update_event_enable(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_UPDIS;
}
/*!
\brief disable the update event
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval none
*/
void timer_update_event_disable(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) |= (uint32_t) TIMER_CTL0_UPDIS;
}
/*!
\brief set TIMER counter alignment mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] aligned:
only one parameter can be selected which is shown as below:
\arg TIMER_COUNTER_EDGE: edge-aligned mode
\arg TIMER_COUNTER_CENTER_DOWN: center-aligned and counting down assert mode
\arg TIMER_COUNTER_CENTER_UP: center-aligned and counting up assert mode
\arg TIMER_COUNTER_CENTER_BOTH: center-aligned and counting up/down assert mode
\param[out] none
\retval none
*/
void timer_counter_alignment(uint32_t timer_periph, uint16_t aligned)
{
TIMER_CTL0(timer_periph) &= (uint32_t)(~TIMER_CTL0_CAM);
TIMER_CTL0(timer_periph) |= (uint32_t)aligned;
}
/*!
\brief set TIMER counter up direction
\param[in] timer_periph: TIMERx(x=0..4)
\param[out] none
\retval none
*/
void timer_counter_up_direction(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_DIR;
}
/*!
\brief set TIMER counter down direction
\param[in] timer_periph: TIMERx(x=0..4)
\param[out] none
\retval none
*/
void timer_counter_down_direction(uint32_t timer_periph)
{
TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_DIR;
}
/*!
\brief configure TIMER prescaler
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] prescaler: prescaler value
\param[in] pscreload: prescaler reload mode
only one parameter can be selected which is shown as below:
\arg TIMER_PSC_RELOAD_NOW: the prescaler is loaded right now
\arg TIMER_PSC_RELOAD_UPDATE: the prescaler is loaded at the next update event
\param[out] none
\retval none
*/
void timer_prescaler_config(uint32_t timer_periph, uint16_t prescaler, uint32_t pscreload)
{
TIMER_PSC(timer_periph) = (uint32_t)prescaler;
if(TIMER_PSC_RELOAD_NOW == pscreload){
TIMER_SWEVG(timer_periph) |= (uint32_t)TIMER_SWEVG_UPG;
}
}
/*!
\brief configure TIMER repetition register value
\param[in] timer_periph: TIMERx(x=0)
\param[in] repetition: the counter repetition value, 0~255
\param[out] none
\retval none
*/
void timer_repetition_value_config(uint32_t timer_periph, uint16_t repetition)
{
TIMER_CREP(timer_periph) = (uint32_t)repetition;
}
/*!
\brief configure TIMER autoreload register value
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] autoreload: the counter auto-reload value
\param[out] none
\retval none
*/
void timer_autoreload_value_config(uint32_t timer_periph, uint16_t autoreload)
{
TIMER_CAR(timer_periph) = (uint32_t)autoreload;
}
/*!
\brief configure TIMER counter register value
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] counter: the counter value
\param[out] none
\retval none
*/
void timer_counter_value_config(uint32_t timer_periph, uint16_t counter)
{
TIMER_CNT(timer_periph) = (uint32_t)counter;
}
/*!
\brief read TIMER counter value
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval counter value
*/
uint32_t timer_counter_read(uint32_t timer_periph)
{
uint32_t count_value = 0U;
count_value = TIMER_CNT(timer_periph);
return (count_value);
}
/*!
\brief read TIMER prescaler value
\param[in] timer_periph: TIMERx(x=0..6)
\param[out] none
\retval prescaler register value
*/
uint16_t timer_prescaler_read(uint32_t timer_periph)
{
uint16_t prescaler_value = 0U;
prescaler_value = (uint16_t) (TIMER_PSC(timer_periph));
return (prescaler_value);
}
/*!
\brief configure TIMER single pulse mode
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] spmode:
only one parameter can be selected which is shown as below:
\arg TIMER_SP_MODE_SINGLE: single pulse mode
\arg TIMER_SP_MODE_REPETITIVE: repetitive pulse mode
\param[out] none
\retval none
*/
void timer_single_pulse_mode_config(uint32_t timer_periph, uint32_t spmode)
{
if(TIMER_SP_MODE_SINGLE == spmode){
TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_SPM;
}else if(TIMER_SP_MODE_REPETITIVE == spmode){
TIMER_CTL0(timer_periph) &= ~((uint32_t)TIMER_CTL0_SPM);
}else{
/* illegal parameters */
}
}
/*!
\brief configure TIMER update source
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] update:
only one parameter can be selected which is shown as below:
\arg TIMER_UPDATE_SRC_GLOBAL: update generate by setting of UPG bit or the counter overflow/underflow,
or the slave mode controller trigger
\arg TIMER_UPDATE_SRC_REGULAR: update generate only by counter overflow/underflow
\param[out] none
\retval none
*/
void timer_update_source_config(uint32_t timer_periph, uint32_t update)
{
if(TIMER_UPDATE_SRC_REGULAR == update){
TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_UPS;
}else if(TIMER_UPDATE_SRC_GLOBAL == update){
TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_UPS;
}else{
/* illegal parameters */
}
}
/*!
\brief enable the TIMER DMA
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] dma: specify which DMA to enable
one or more parameters can be selected which are shown as below:
\arg TIMER_DMA_UPD: update DMA enable, TIMERx(x=0..6)
\arg TIMER_DMA_CH0D: channel 0 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CH1D: channel 1 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CH2D: channel 2 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CH3D: channel 3 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CMTD: channel commutation DMA request enable, TIMERx(x=0)
\arg TIMER_DMA_TRGD: trigger DMA enable, TIMERx(x=0..4)
\param[out] none
\retval none
*/
void timer_dma_enable(uint32_t timer_periph, uint16_t dma)
{
TIMER_DMAINTEN(timer_periph) |= (uint32_t) dma;
}
/*!
\brief disable the TIMER DMA
\param[in] timer_periph: TIMERxTIMERx(x=0..6)
\param[in] dma: specify which DMA to disbale
one or more parameters can be selected which are shown as below:
\arg TIMER_DMA_UPD: update DMA enable, TIMERx(x=0..6)
\arg TIMER_DMA_CH0D: channel 0 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CH1D: channel 1 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CH2D: channel 2 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CH3D: channel 3 DMA enable, TIMERx(x=0..4)
\arg TIMER_DMA_CMTD: channel commutation DMA request enable, TIMERx(x=0)
\arg TIMER_DMA_TRGD: trigger DMA enable, TIMERx(x=0..4,7)
\param[out] none
\retval none
*/
void timer_dma_disable(uint32_t timer_periph, uint16_t dma)
{
TIMER_DMAINTEN(timer_periph) &= (~(uint32_t)(dma));
}
/*!
\brief channel DMA request source selection
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] dma_request: channel DMA request source selection
only one parameter can be selected which is shown as below:
\arg TIMER_DMAREQUEST_CHANNELEVENT: DMA request of channel n is sent when channel n event occurs
\arg TIMER_DMAREQUEST_UPDATEEVENT: DMA request of channel n is sent when update event occurs
\param[out] none
\retval none
*/
void timer_channel_dma_request_source_select(uint32_t timer_periph, uint32_t dma_request)
{
if(TIMER_DMAREQUEST_UPDATEEVENT == dma_request){
TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_DMAS;
}else if(TIMER_DMAREQUEST_CHANNELEVENT == dma_request){
TIMER_CTL1(timer_periph) &= ~(uint32_t)TIMER_CTL1_DMAS;
}else{
/* illegal parameters */
}
}
/*!
\brief configure the TIMER DMA transfer
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] dma_baseaddr:
only one parameter can be selected which is shown as below:
\arg TIMER_DMACFG_DMATA_CTL0: DMA transfer address is TIMER_CTL0, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CTL1: DMA transfer address is TIMER_CTL1, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_SMCFG: DMA transfer address is TIMER_SMCFG, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_DMAINTEN: DMA transfer address is TIMER_DMAINTEN, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_INTF: DMA transfer address is TIMER_INTF, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_SWEVG: DMA transfer address is TIMER_SWEVG, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CHCTL0: DMA transfer address is TIMER_CHCTL0, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CHCTL1: DMA transfer address is TIMER_CHCTL1, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CHCTL2: DMA transfer address is TIMER_CHCTL2, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CNT: DMA transfer address is TIMER_CNT, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_PSC: DMA transfer address is TIMER_PSC, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CAR: DMA transfer address is TIMER_CAR, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CREP: DMA transfer address is TIMER_CREP, TIMERx(x=0)
\arg TIMER_DMACFG_DMATA_CH0CV: DMA transfer address is TIMER_CH0CV, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CH1CV: DMA transfer address is TIMER_CH1CV, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CH2CV: DMA transfer address is TIMER_CH2CV, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CH3CV: DMA transfer address is TIMER_CH3CV, TIMERx(x=0..4)
\arg TIMER_DMACFG_DMATA_CCHP: DMA transfer address is TIMER_CCHP, TIMERx(x=0)
\arg TIMER_DMACFG_DMATA_DMACFG: DMA transfer address is TIMER_DMACFG, TIMERx(x=0..4)
\param[in] dma_lenth:
only one parameter can be selected which is shown as below:
\arg TIMER_DMACFG_DMATC_xTRANSFER(x=1..6): DMA transfer x time
\param[out] none
\retval none
*/
void timer_dma_transfer_config(uint32_t timer_periph, uint32_t dma_baseaddr, uint32_t dma_lenth)
{
TIMER_DMACFG(timer_periph) &= (~(uint32_t)(TIMER_DMACFG_DMATA | TIMER_DMACFG_DMATC));
TIMER_DMACFG(timer_periph) |= (uint32_t)(dma_baseaddr | dma_lenth);
}
/*!
\brief software generate events
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] event: the timer software event generation sources
one or more parameters can be selected which are shown as below:
\arg TIMER_EVENT_SRC_UPG: update event generation, TIMERx(x=0..6)
\arg TIMER_EVENT_SRC_CH0G: channel 0 capture or compare event generation, TIMERx(x=0..4)
\arg TIMER_EVENT_SRC_CH1G: channel 1 capture or compare event generation, TIMERx(x=0..4)
\arg TIMER_EVENT_SRC_CH2G: channel 2 capture or compare event generation, TIMERx(x=0..4)
\arg TIMER_EVENT_SRC_CH3G: channel 3 capture or compare event generation, TIMERx(x=0..4)
\arg TIMER_EVENT_SRC_CMTG: channel commutation event generation, TIMERx(x=0)
\arg TIMER_EVENT_SRC_TRGG: trigger event generation, TIMERx(x=0..4)
\arg TIMER_EVENT_SRC_BRKG: break event generation, TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_event_software_generate(uint32_t timer_periph, uint16_t event)
{
TIMER_SWEVG(timer_periph) |= (uint32_t)event;
}
/*!
\brief initialize TIMER break parameter struct with a default value
\param[in] breakpara: TIMER break parameter struct
\param[out] none
\retval none
*/
void timer_break_struct_para_init(timer_break_parameter_struct* breakpara)
{
/* initialize the break parameter struct member with the default value */
breakpara->runoffstate = TIMER_ROS_STATE_DISABLE;
breakpara->ideloffstate = TIMER_IOS_STATE_DISABLE;
breakpara->deadtime = 0U;
breakpara->breakpolarity = TIMER_BREAK_POLARITY_LOW;
breakpara->outputautostate = TIMER_OUTAUTO_DISABLE;
breakpara->protectmode = TIMER_CCHP_PROT_OFF;
breakpara->breakstate = TIMER_BREAK_DISABLE;
}
/*!
\brief configure TIMER break function
\param[in] timer_periph: TIMERx(x=0)
\param[in] breakpara: TIMER break parameter struct
runoffstate: TIMER_ROS_STATE_ENABLE, TIMER_ROS_STATE_DISABLE
ideloffstate: TIMER_IOS_STATE_ENABLE, TIMER_IOS_STATE_DISABLE
deadtime: 0~255
breakpolarity: TIMER_BREAK_POLARITY_LOW, TIMER_BREAK_POLARITY_HIGH
outputautostate: TIMER_OUTAUTO_ENABLE, TIMER_OUTAUTO_DISABLE
protectmode: TIMER_CCHP_PROT_OFF, TIMER_CCHP_PROT_0, TIMER_CCHP_PROT_1, TIMER_CCHP_PROT_2
breakstate: TIMER_BREAK_ENABLE, TIMER_BREAK_DISABLE
\param[out] none
\retval none
*/
void timer_break_config(uint32_t timer_periph, timer_break_parameter_struct* breakpara)
{
TIMER_CCHP(timer_periph) = (uint32_t)(((uint32_t)(breakpara->runoffstate)) |
((uint32_t)(breakpara->ideloffstate))|
((uint32_t)(breakpara->deadtime)) |
((uint32_t)(breakpara->breakpolarity)) |
((uint32_t)(breakpara->outputautostate)) |
((uint32_t)(breakpara->protectmode)) |
((uint32_t)(breakpara->breakstate)));
}
/*!
\brief enable TIMER break function
\param[in] timer_periph: TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_break_enable(uint32_t timer_periph)
{
TIMER_CCHP(timer_periph) |= (uint32_t)TIMER_CCHP_BRKEN;
}
/*!
\brief disable TIMER break function
\param[in] timer_periph: TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_break_disable(uint32_t timer_periph)
{
TIMER_CCHP(timer_periph) &= ~(uint32_t)TIMER_CCHP_BRKEN;
}
/*!
\brief enable TIMER output automatic function
\param[in] timer_periph: TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_automatic_output_enable(uint32_t timer_periph)
{
TIMER_CCHP(timer_periph) |= (uint32_t)TIMER_CCHP_OAEN;
}
/*!
\brief disable TIMER output automatic function
\param[in] timer_periph: TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_automatic_output_disable(uint32_t timer_periph)
{
TIMER_CCHP(timer_periph) &= ~(uint32_t)TIMER_CCHP_OAEN;
}
/*!
\brief enable or disable TIMER primary output function
\param[in] timer_periph: TIMERx(x=0)
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void timer_primary_output_config(uint32_t timer_periph, ControlStatus newvalue)
{
if(ENABLE == newvalue){
TIMER_CCHP(timer_periph) |= (uint32_t)TIMER_CCHP_POEN;
}else{
TIMER_CCHP(timer_periph) &= (~(uint32_t)TIMER_CCHP_POEN);
}
}
/*!
\brief enable or disable channel capture/compare control shadow register
\param[in] timer_periph: TIMERx(x=0)
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void timer_channel_control_shadow_config(uint32_t timer_periph, ControlStatus newvalue)
{
if(ENABLE == newvalue){
TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_CCSE;
}else{
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_CCSE);
}
}
/*!
\brief configure TIMER channel control shadow register update control
\param[in] timer_periph: TIMERx(x=0)
\param[in] ccuctl: channel control shadow register update control
only one parameter can be selected which is shown as below:
\arg TIMER_UPDATECTL_CCU: the shadow registers update by when CMTG bit is set
\arg TIMER_UPDATECTL_CCUTRI: the shadow registers update by when CMTG bit is set or an rising edge of TRGI occurs
\param[out] none
\retval none
*/
void timer_channel_control_shadow_update_config(uint32_t timer_periph, uint32_t ccuctl)
{
if(TIMER_UPDATECTL_CCU == ccuctl){
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_CCUC);
}else if(TIMER_UPDATECTL_CCUTRI == ccuctl){
TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_CCUC;
}else{
/* illegal parameters */
}
}
/*!
\brief initialize TIMER channel output parameter struct with a default value
\param[in] ocpara: TIMER channel n output parameter struct
\param[out] none
\retval none
*/
void timer_channel_output_struct_para_init(timer_oc_parameter_struct* ocpara)
{
/* initialize the channel output parameter struct member with the default value */
ocpara->outputstate = TIMER_CCX_DISABLE;
ocpara->outputnstate = TIMER_CCXN_DISABLE;
ocpara->ocpolarity = TIMER_OC_POLARITY_HIGH;
ocpara->ocnpolarity = TIMER_OCN_POLARITY_HIGH;
ocpara->ocidlestate = TIMER_OC_IDLE_STATE_LOW;
ocpara->ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
}
/*!
\brief configure TIMER channel output function
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] ocpara: TIMER channeln output parameter struct
outputstate: TIMER_CCX_ENABLE, TIMER_CCX_DISABLE
outputnstate: TIMER_CCXN_ENABLE, TIMER_CCXN_DISABLE
ocpolarity: TIMER_OC_POLARITY_HIGH, TIMER_OC_POLARITY_LOW
ocnpolarity: TIMER_OCN_POLARITY_HIGH, TIMER_OCN_POLARITY_LOW
ocidlestate: TIMER_OC_IDLE_STATE_LOW, TIMER_OC_IDLE_STATE_HIGH
ocnidlestate: TIMER_OCN_IDLE_STATE_LOW, TIMER_OCN_IDLE_STATE_HIGH
\param[out] none
\retval none
*/
void timer_channel_output_config(uint32_t timer_periph, uint16_t channel, timer_oc_parameter_struct* ocpara)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
/* reset the CH0EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
/* set the CH0EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->outputstate;
/* reset the CH0P bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0P);
/* set the CH0P bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->ocpolarity;
if (TIMER0 == timer_periph) {
/* reset the CH0NEN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NEN);
/* set the CH0NEN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->outputnstate;
/* reset the CH0NP bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NP);
/* set the CH0NP bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->ocnpolarity;
/* reset the ISO0 bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO0);
/* set the ISO0 bit */
TIMER_CTL1(timer_periph) |= (uint32_t)ocpara->ocidlestate;
/* reset the ISO0N bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO0N);
/* set the ISO0N bit */
TIMER_CTL1(timer_periph) |= (uint32_t)ocpara->ocnidlestate;
}
TIMER_CHCTL0(timer_periph) &= ~(uint32_t)TIMER_CHCTL0_CH0MS;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
/* reset the CH1EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
/* set the CH1EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputstate) << 4U);
/* reset the CH1P bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1P);
/* set the CH1P bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocpolarity) << 4U);
if (TIMER0 == timer_periph) {
/* reset the CH1NEN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NEN);
/* set the CH1NEN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputnstate) << 4U);
/* reset the CH1NP bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NP);
/* set the CH1NP bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnpolarity) << 4U);
/* reset the ISO1 bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO1);
/* set the ISO1 bit */
TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 2U);
/* reset the ISO1N bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO1N);
/* set the ISO1N bit */
TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnidlestate) << 2U);
}
TIMER_CHCTL0(timer_periph) &= ~(uint32_t)TIMER_CHCTL0_CH1MS;
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
/* reset the CH2EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2EN);
/* set the CH2EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputstate) << 8U);
/* reset the CH2P bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2P);
/* set the CH2P bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocpolarity) << 8U);
if (TIMER0 == timer_periph) {
/* reset the CH2NEN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NEN);
/* set the CH2NEN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputnstate) << 8U);
/* reset the CH2NP bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NP);
/* set the CH2NP bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnpolarity) << 8U);
/* reset the ISO2 bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO2);
/* set the ISO2 bit */
TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 4U);
/* reset the ISO2N bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO2N);
/* set the ISO2N bit */
TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnidlestate) << 4U);
}
TIMER_CHCTL1(timer_periph) &= ~(uint32_t)TIMER_CHCTL1_CH2MS;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
/* reset the CH3EN bit */
TIMER_CHCTL2(timer_periph) &=(~(uint32_t)TIMER_CHCTL2_CH3EN);
/* set the CH3EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputstate) << 12U);
/* reset the CH3P bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3P);
/* set the CH3P bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocpolarity) << 12U);
if (TIMER0 == timer_periph) {
/* reset the ISO3 bit */
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO3);
/* set the ISO3 bit */
TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 6U);
}
TIMER_CHCTL1(timer_periph) &= ~(uint32_t)TIMER_CHCTL1_CH3MS;
break;
default:
break;
}
}
/*!
\brief configure TIMER channel output compare mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] ocmode: channel output compare mode
only one parameter can be selected which is shown as below:
\arg TIMER_OC_MODE_TIMING: timing mode
\arg TIMER_OC_MODE_ACTIVE: active mode
\arg TIMER_OC_MODE_INACTIVE: inactive mode
\arg TIMER_OC_MODE_TOGGLE: toggle mode
\arg TIMER_OC_MODE_LOW: force low mode
\arg TIMER_OC_MODE_HIGH: force high mode
\arg TIMER_OC_MODE_PWM0: PWM mode 0
\arg TIMER_OC_MODE_PWM1: PWM mode 1
\param[out] none
\retval none
*/
void timer_channel_output_mode_config(uint32_t timer_periph, uint16_t channel, uint16_t ocmode)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMCTL);
TIMER_CHCTL0(timer_periph) |= (uint32_t)ocmode;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMCTL);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(ocmode) << 8U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMCTL);
TIMER_CHCTL1(timer_periph) |= (uint32_t)ocmode;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMCTL);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(ocmode) << 8U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel output pulse value
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] pulse: channel output pulse value
\param[out] none
\retval none
*/
void timer_channel_output_pulse_value_config(uint32_t timer_periph, uint16_t channel, uint32_t pulse)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CH0CV(timer_periph) = (uint32_t)pulse;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CH1CV(timer_periph) = (uint32_t)pulse;
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CH2CV(timer_periph) = (uint32_t)pulse;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CH3CV(timer_periph) = (uint32_t)pulse;
break;
default:
break;
}
}
/*!
\brief configure TIMER channel output shadow function
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] ocshadow: channel output shadow state
only one parameter can be selected which is shown as below:
\arg TIMER_OC_SHADOW_ENABLE: channel output shadow state enable
\arg TIMER_OC_SHADOW_DISABLE: channel output shadow state disable
\param[out] none
\retval none
*/
void timer_channel_output_shadow_config(uint32_t timer_periph, uint16_t channel, uint16_t ocshadow)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMSEN);
TIMER_CHCTL0(timer_periph) |= (uint32_t)ocshadow;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMSEN);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(ocshadow) << 8U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMSEN);
TIMER_CHCTL1(timer_periph) |= (uint32_t)ocshadow;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMSEN);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(ocshadow) << 8U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel output fast function
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] ocfast: channel output fast function
only one parameter can be selected which is shown as below:
\arg TIMER_OC_FAST_ENABLE: channel output fast function enable
\arg TIMER_OC_FAST_DISABLE: channel output fast function disable
\param[out] none
\retval none
*/
void timer_channel_output_fast_config(uint32_t timer_periph, uint16_t channel, uint16_t ocfast)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMFEN);
TIMER_CHCTL0(timer_periph) |= (uint32_t)ocfast;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMFEN);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)ocfast << 8U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMFEN);
TIMER_CHCTL1(timer_periph) |= (uint32_t)ocfast;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMFEN);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)ocfast << 8U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel output clear function
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] occlear: channel output clear function
only one parameter can be selected which is shown as below:
\arg TIMER_OC_CLEAR_ENABLE: channel output clear function enable
\arg TIMER_OC_CLEAR_DISABLE: channel output clear function disable
\param[out] none
\retval none
*/
void timer_channel_output_clear_config(uint32_t timer_periph, uint16_t channel, uint16_t occlear)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMCEN);
TIMER_CHCTL0(timer_periph) |= (uint32_t)occlear;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMCEN);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)occlear << 8U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMCEN);
TIMER_CHCTL1(timer_periph) |= (uint32_t)occlear;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMCEN);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)occlear << 8U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel output polarity
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] ocpolarity: channel output polarity
only one parameter can be selected which is shown as below:
\arg TIMER_OC_POLARITY_HIGH: channel output polarity is high
\arg TIMER_OC_POLARITY_LOW: channel output polarity is low
\param[out] none
\retval none
*/
void timer_channel_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocpolarity)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0P);
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpolarity;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1P);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpolarity << 4U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2P);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpolarity << 8U);
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3P);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpolarity << 12U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel complementary output polarity
\param[in] timer_periph: TIMERx(x=0)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0))
\param[in] ocnpolarity: channel complementary output polarity
only one parameter can be selected which is shown as below:
\arg TIMER_OCN_POLARITY_HIGH: channel complementary output polarity is high
\arg TIMER_OCN_POLARITY_LOW: channel complementary output polarity is low
\param[out] none
\retval none
*/
void timer_channel_complementary_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnpolarity)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NP);
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocnpolarity;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NP);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnpolarity << 4U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NP);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnpolarity << 8U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel enable state
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] state: TIMER channel enable state
only one parameter can be selected which is shown as below:
\arg TIMER_CCX_ENABLE: channel enable
\arg TIMER_CCX_DISABLE: channel disable
\param[out] none
\retval none
*/
void timer_channel_output_state_config(uint32_t timer_periph, uint16_t channel, uint32_t state)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)state;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)state << 4U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2EN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)state << 8U);
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3EN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)state << 12U);
break;
default:
break;
}
}
/*!
\brief configure TIMER channel complementary output enable state
\param[in] timer_periph: TIMERx(x=0)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0
\arg TIMER_CH_1: TIMER channel 1
\arg TIMER_CH_2: TIMER channel 2
\param[in] ocnstate: TIMER channel complementary output enable state
only one parameter can be selected which is shown as below:
\arg TIMER_CCXN_ENABLE: channel complementary enable
\arg TIMER_CCXN_DISABLE: channel complementary disable
\param[out] none
\retval none
*/
void timer_channel_complementary_output_state_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnstate)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NEN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)ocnstate;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NEN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnstate << 4U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NEN);
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnstate << 8U);
break;
default:
break;
}
}
/*!
\brief initialize TIMER channel input parameter struct with a default value
\param[in] icpara: TIMER channel intput parameter struct
\param[out] none
\retval none
*/
void timer_channel_input_struct_para_init(timer_ic_parameter_struct* icpara)
{
/* initialize the channel input parameter struct member with the default value */
icpara->icpolarity = TIMER_IC_POLARITY_RISING;
icpara->icselection = TIMER_IC_SELECTION_DIRECTTI;
icpara->icprescaler = TIMER_IC_PSC_DIV1;
icpara->icfilter = 0U;
}
/*!
\brief configure TIMER input capture parameter
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] icpara: TIMER channel intput parameter struct
icpolarity: TIMER_IC_POLARITY_RISING, TIMER_IC_POLARITY_FALLING,
TIMER_IC_POLARITY_BOTH_EDGE(only for TIMER1~TIMER8)
icselection: TIMER_IC_SELECTION_DIRECTTI, TIMER_IC_SELECTION_INDIRECTTI,
TIMER_IC_SELECTION_ITS
icprescaler: TIMER_IC_PSC_DIV1, TIMER_IC_PSC_DIV2, TIMER_IC_PSC_DIV4,
TIMER_IC_PSC_DIV8
icfilter: 0~15
\param[out] none
\retval none
*/
void timer_input_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpara)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
/* reset the CH0EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
/* reset the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P | TIMER_CHCTL2_CH0NP));
TIMER_CHCTL2(timer_periph) |= (uint32_t)(icpara->icpolarity);
/* reset the CH0MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
TIMER_CHCTL0(timer_periph) |= (uint32_t)(icpara->icselection);
/* reset the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 4U);
/* set the CH0EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
/* reset the CH1EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
/* reset the CH1P and CH1NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P | TIMER_CHCTL2_CH1NP));
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpara->icpolarity) << 4U);
/* reset the CH1MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpara->icselection) << 8U);
/* reset the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 12U);
/* set the CH1EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
/* reset the CH2EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2EN);
/* reset the CH2P and CH2NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH2P | TIMER_CHCTL2_CH2NP));
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpara->icpolarity) << 8U);
/* reset the CH2MS bit */
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2MS);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icselection));
/* reset the CH2CAPFLT bit */
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2CAPFLT);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 4U);
/* set the CH2EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH2EN;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
/* reset the CH3EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3EN);
/* reset the CH3P bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH3P));
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpara->icpolarity) << 12U);
/* reset the CH3MS bit */
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3MS);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icselection) << 8U);
/* reset the CH3CAPFLT bit */
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3CAPFLT);
TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 12U);
/* set the CH3EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH3EN;
break;
default:
break;
}
/* configure TIMER channel input capture prescaler value */
timer_channel_input_capture_prescaler_config(timer_periph, channel, (uint16_t)(icpara->icprescaler));
}
/*!
\brief configure TIMER channel input capture prescaler value
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[in] prescaler: channel input capture prescaler value
only one parameter can be selected which is shown as below:
\arg TIMER_IC_PSC_DIV1: no prescaler
\arg TIMER_IC_PSC_DIV2: divided by 2
\arg TIMER_IC_PSC_DIV4: divided by 4
\arg TIMER_IC_PSC_DIV8: divided by 8
\param[out] none
\retval none
*/
void timer_channel_input_capture_prescaler_config(uint32_t timer_periph, uint16_t channel, uint16_t prescaler)
{
switch(channel){
/* configure TIMER_CH_0 */
case TIMER_CH_0:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPPSC);
TIMER_CHCTL0(timer_periph) |= (uint32_t)prescaler;
break;
/* configure TIMER_CH_1 */
case TIMER_CH_1:
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPPSC);
TIMER_CHCTL0(timer_periph) |= ((uint32_t)prescaler << 8U);
break;
/* configure TIMER_CH_2 */
case TIMER_CH_2:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2CAPPSC);
TIMER_CHCTL1(timer_periph) |= (uint32_t)prescaler;
break;
/* configure TIMER_CH_3 */
case TIMER_CH_3:
TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3CAPPSC);
TIMER_CHCTL1(timer_periph) |= ((uint32_t)prescaler << 8U);
break;
default:
break;
}
}
/*!
\brief read TIMER channel capture compare register value
\param[in] timer_periph: please refer to the following parameters
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0..4))
\arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0..4))
\arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0..4))
\arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0..4))
\param[out] none
\retval channel capture compare register value
*/
uint32_t timer_channel_capture_value_register_read(uint32_t timer_periph, uint16_t channel)
{
uint32_t count_value = 0U;
switch(channel){
case TIMER_CH_0:
/* read TIMER channel 0 capture compare register value */
count_value = TIMER_CH0CV(timer_periph);
break;
case TIMER_CH_1:
/* read TIMER channel 1 capture compare register value */
count_value = TIMER_CH1CV(timer_periph);
break;
case TIMER_CH_2:
/* read TIMER channel 2 capture compare register value */
count_value = TIMER_CH2CV(timer_periph);
break;
case TIMER_CH_3:
/* read TIMER channel 3 capture compare register value */
count_value = TIMER_CH3CV(timer_periph);
break;
default:
break;
}
return (count_value);
}
/*!
\brief configure TIMER input pwm capture function
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] channel:
only one parameter can be selected which is shown as below:
\arg TIMER_CH_0: TIMER channel 0
\arg TIMER_CH_1: TIMER channel 1
\param[in] icpwm: TIMER channel intput pwm parameter struct
icpolarity: TIMER_IC_POLARITY_RISING, TIMER_IC_POLARITY_FALLING
icselection: TIMER_IC_SELECTION_DIRECTTI, TIMER_IC_SELECTION_INDIRECTTI
icprescaler: TIMER_IC_PSC_DIV1, TIMER_IC_PSC_DIV2, TIMER_IC_PSC_DIV4,
TIMER_IC_PSC_DIV8
icfilter: 0~15
\param[out] none
\retval none
*/
void timer_input_pwm_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpwm)
{
uint16_t icpolarity = 0x0U;
uint16_t icselection = 0x0U;
/* Set channel input polarity */
if(TIMER_IC_POLARITY_RISING == icpwm->icpolarity){
icpolarity = TIMER_IC_POLARITY_FALLING;
}else{
icpolarity = TIMER_IC_POLARITY_RISING;
}
/* Set channel input mode selection */
if(TIMER_IC_SELECTION_DIRECTTI == icpwm->icselection){
icselection = TIMER_IC_SELECTION_INDIRECTTI;
}else{
icselection = TIMER_IC_SELECTION_DIRECTTI;
}
if(TIMER_CH_0 == channel){
/* reset the CH0EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
/* reset the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P | TIMER_CHCTL2_CH0NP));
/* set the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) |= (uint32_t)(icpwm->icpolarity);
/* reset the CH0MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
/* set the CH0MS bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)(icpwm->icselection);
/* reset the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
/* set the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) |= ((uint32_t)(icpwm->icfilter) << 4U);
/* set the CH0EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
/* configure TIMER channel input capture prescaler value */
timer_channel_input_capture_prescaler_config(timer_periph, TIMER_CH_0, (uint16_t)(icpwm->icprescaler));
/* reset the CH1EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
/* reset the CH1P and CH1NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P | TIMER_CHCTL2_CH1NP));
/* set the CH1P and CH1NP bits */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)icpolarity<< 4U);
/* reset the CH1MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
/* set the CH1MS bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)icselection << 8U);
/* reset the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
/* set the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icfilter) << 12U);
/* set the CH1EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
/* configure TIMER channel input capture prescaler value */
timer_channel_input_capture_prescaler_config(timer_periph, TIMER_CH_1, (uint16_t)(icpwm->icprescaler));
}else{
/* reset the CH1EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
/* reset the CH1P and CH1NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P | TIMER_CHCTL2_CH1NP));
/* set the CH1P and CH1NP bits */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icpolarity) << 4U);
/* reset the CH1MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
/* set the CH1MS bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icselection) << 8U);
/* reset the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
/* set the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icfilter) << 12U);
/* set the CH1EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
/* configure TIMER channel input capture prescaler value */
timer_channel_input_capture_prescaler_config(timer_periph, TIMER_CH_1, (uint16_t)(icpwm->icprescaler));
/* reset the CH0EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
/* reset the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P | TIMER_CHCTL2_CH0NP));
/* set the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) |= (uint32_t)icpolarity;
/* reset the CH0MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
/* set the CH0MS bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)icselection;
/* reset the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
/* set the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) |= ((uint32_t)(icpwm->icfilter) << 4U);
/* set the CH0EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
/* configure TIMER channel input capture prescaler value */
timer_channel_input_capture_prescaler_config(timer_periph, TIMER_CH_0, (uint16_t)(icpwm->icprescaler));
}
}
/*!
\brief configure TIMER hall sensor mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] hallmode:
only one parameter can be selected which is shown as below:
\arg TIMER_HALLINTERFACE_ENABLE: TIMER hall sensor mode enable
\arg TIMER_HALLINTERFACE_DISABLE: TIMER hall sensor mode disable
\param[out] none
\retval none
*/
void timer_hall_mode_config(uint32_t timer_periph, uint32_t hallmode)
{
if(TIMER_HALLINTERFACE_ENABLE == hallmode){
TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_TI0S;
}else if(TIMER_HALLINTERFACE_DISABLE == hallmode){
TIMER_CTL1(timer_periph) &= ~(uint32_t)TIMER_CTL1_TI0S;
}else{
/* illegal parameters */
}
}
/*!
\brief select TIMER input trigger source
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] intrigger:
only one parameter can be selected which is shown as below:
\arg TIMER_SMCFG_TRGSEL_ITI0: internal trigger 0(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_ITI1: internal trigger 1(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_ITI2: internal trigger 2(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_ITI3: internal trigger 3(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_CI0F_ED: TI0 edge detector(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_CI0FE0: filtered TIMER input 0(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_CI1FE1: filtered TIMER input 1(TIMERx(x=0..4))
\arg TIMER_SMCFG_TRGSEL_ETIFP: filtered external trigger input(TIMERx(x=0..4))
\param[out] none
\retval none
*/
void timer_input_trigger_source_select(uint32_t timer_periph, uint32_t intrigger)
{
TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_TRGS);
TIMER_SMCFG(timer_periph) |= (uint32_t)intrigger;
}
/*!
\brief select TIMER master mode output trigger source
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] outrigger:
only one parameter can be selected which is shown as below:
\arg TIMER_TRI_OUT_SRC_RESET: the UPG bit as trigger output(TIMERx(x=0..6))
\arg TIMER_TRI_OUT_SRC_ENABLE: the counter enable signal TIMER_CTL0_CEN as trigger output(TIMERx(x=0..6))
\arg TIMER_TRI_OUT_SRC_UPDATE: update event as trigger output(TIMERx(x=0..6))
\arg TIMER_TRI_OUT_SRC_CH0: a capture or a compare match occurred in channel 0 as trigger output TRGO(TIMERx(x=0..4))
\arg TIMER_TRI_OUT_SRC_O0CPRE: O0CPRE as trigger output(TIMERx(x=0..4))
\arg TIMER_TRI_OUT_SRC_O1CPRE: O1CPRE as trigger output(TIMERx(x=0..4))
\arg TIMER_TRI_OUT_SRC_O2CPRE: O2CPRE as trigger output(TIMERx(x=0..4))
\arg TIMER_TRI_OUT_SRC_O3CPRE: O3CPRE as trigger output(TIMERx(x=0..4))
\param[out] none
\retval none
*/
void timer_master_output_trigger_source_select(uint32_t timer_periph, uint32_t outrigger)
{
TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_MMC);
TIMER_CTL1(timer_periph) |= (uint32_t)outrigger;
}
/*!
\brief select TIMER slave mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] slavemode:
only one parameter can be selected which is shown as below:
\arg TIMER_SLAVE_MODE_DISABLE: slave mode disable
\arg TIMER_ENCODER_MODE0: encoder mode 0
\arg TIMER_ENCODER_MODE1: encoder mode 1
\arg TIMER_ENCODER_MODE2: encoder mode 2
\arg TIMER_SLAVE_MODE_RESTART: restart mode
\arg TIMER_SLAVE_MODE_PAUSE: pause mode
\arg TIMER_SLAVE_MODE_EVENT: event mode
\arg TIMER_SLAVE_MODE_EXTERNAL0: external clock mode 0
\param[out] none
\retval none
*/
void timer_slave_mode_select(uint32_t timer_periph, uint32_t slavemode)
{
TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_SMC);
TIMER_SMCFG(timer_periph) |= (uint32_t)slavemode;
}
/*!
\brief configure TIMER master slave mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] masterslave:
only one parameter can be selected which is shown as below:
\arg TIMER_MASTER_SLAVE_MODE_ENABLE: master slave mode enable
\arg TIMER_MASTER_SLAVE_MODE_DISABLE: master slave mode disable
\param[out] none
\retval none
*/
void timer_master_slave_mode_config(uint32_t timer_periph, uint32_t masterslave)
{
if(TIMER_MASTER_SLAVE_MODE_ENABLE == masterslave){
TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SMCFG_MSM;
}else if(TIMER_MASTER_SLAVE_MODE_DISABLE == masterslave){
TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_MSM;
}else{
/* illegal parameters */
}
}
/*!
\brief configure TIMER external trigger input
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] extprescaler:
only one parameter can be selected which is shown as below:
\arg TIMER_EXT_TRI_PSC_OFF: no divided
\arg TIMER_EXT_TRI_PSC_DIV2: divided by 2
\arg TIMER_EXT_TRI_PSC_DIV4: divided by 4
\arg TIMER_EXT_TRI_PSC_DIV8: divided by 8
\param[in] extpolarity:
only one parameter can be selected which is shown as below:
\arg TIMER_ETP_FALLING: active low or falling edge active
\arg TIMER_ETP_RISING: active high or rising edge active
\param[in] extfilter: a value between 0 and 15
\param[out] none
\retval none
*/
void timer_external_trigger_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter)
{
TIMER_SMCFG(timer_periph) &= (~(uint32_t)(TIMER_SMCFG_ETP | TIMER_SMCFG_ETPSC | TIMER_SMCFG_ETFC));
TIMER_SMCFG(timer_periph) |= (uint32_t)(extprescaler | extpolarity);
TIMER_SMCFG(timer_periph) |= (uint32_t)(extfilter << 8U);
}
/*!
\brief configure TIMER quadrature decoder mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] decomode:
only one parameter can be selected which is shown as below:
\arg TIMER_ENCODER_MODE0: counter counts on CI0FE0 edge depending on CI1FE1 level
\arg TIMER_ENCODER_MODE1: counter counts on CI1FE1 edge depending on CI0FE0 level
\arg TIMER_ENCODER_MODE2: counter counts on both CI0FE0 and CI1FE1 edges depending on the level of the other input
\param[in] ic0polarity:
only one parameter can be selected which is shown as below:
\arg TIMER_IC_POLARITY_RISING: capture rising edge
\arg TIMER_IC_POLARITY_FALLING: capture falling edge
\param[in] ic1polarity:
only one parameter can be selected which is shown as below:
\arg TIMER_IC_POLARITY_RISING: capture rising edge
\arg TIMER_IC_POLARITY_FALLING: capture falling edge
\param[out] none
\retval none
*/
void timer_quadrature_decoder_mode_config(uint32_t timer_periph, uint32_t decomode, uint16_t ic0polarity, uint16_t ic1polarity)
{
/* configure the quadrature decoder mode */
TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_SMC);
TIMER_SMCFG(timer_periph) |= (uint32_t)decomode;
/* configure input capture selection */
TIMER_CHCTL0(timer_periph) &= (uint32_t)(((~(uint32_t)TIMER_CHCTL0_CH0MS)) & ((~(uint32_t)TIMER_CHCTL0_CH1MS)));
TIMER_CHCTL0(timer_periph) |= (uint32_t)(TIMER_IC_SELECTION_DIRECTTI | ((uint32_t)TIMER_IC_SELECTION_DIRECTTI << 8U));
/* configure channel input capture polarity */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P | TIMER_CHCTL2_CH0NP));
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P | TIMER_CHCTL2_CH1NP));
TIMER_CHCTL2(timer_periph) |= ((uint32_t)ic0polarity | ((uint32_t)ic1polarity << 4U));
}
/*!
\brief configure TIMER internal clock mode
\param[in] timer_periph: TIMERx(x=0..4)
\param[out] none
\retval none
*/
void timer_internal_clock_config(uint32_t timer_periph)
{
TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_SMC;
}
/*!
\brief configure TIMER the internal trigger as external clock input
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] intrigger:
only one parameter can be selected which is shown as below:
\arg TIMER_SMCFG_TRGSEL_ITI0: internal trigger 0
\arg TIMER_SMCFG_TRGSEL_ITI1: internal trigger 1
\arg TIMER_SMCFG_TRGSEL_ITI2: internal trigger 2
\arg TIMER_SMCFG_TRGSEL_ITI3: internal trigger 3
\param[out] none
\retval none
*/
void timer_internal_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t intrigger)
{
timer_input_trigger_source_select(timer_periph, intrigger);
TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_SMC;
TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SLAVE_MODE_EXTERNAL0;
}
/*!
\brief configure TIMER the external trigger as external clock input
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] extrigger:
only one parameter can be selected which is shown as below:
\arg TIMER_SMCFG_TRGSEL_CI0F_ED: TI0 edge detector
\arg TIMER_SMCFG_TRGSEL_CI0FE0: filtered TIMER input 0
\arg TIMER_SMCFG_TRGSEL_CI1FE1: filtered TIMER input 1
\param[in] extpolarity:
only one parameter can be selected which is shown as below:
\arg TIMER_IC_POLARITY_RISING: active low or falling edge active
\arg TIMER_IC_POLARITY_FALLING: active high or rising edge active
\param[in] extfilter: a value between 0 and 15
\param[out] none
\retval none
*/
void timer_external_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t extrigger, uint16_t extpolarity, uint32_t extfilter)
{
if(TIMER_SMCFG_TRGSEL_CI1FE1 == extrigger){
/* reset the CH1EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
/* reset the CH1NP bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P | TIMER_CHCTL2_CH1NP));
/* set the CH1NP bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)extpolarity << 4U);
/* reset the CH1MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
/* set the CH1MS bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)TIMER_IC_SELECTION_DIRECTTI << 8U);
/* reset the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
/* set the CH1CAPFLT bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)(extfilter << 12U);
/* set the CH1EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
}else{
/* reset the CH0EN bit */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
/* reset the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P | TIMER_CHCTL2_CH0NP));
/* set the CH0P and CH0NP bits */
TIMER_CHCTL2(timer_periph) |= (uint32_t)extpolarity;
/* reset the CH0MS bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
/* set the CH0MS bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)TIMER_IC_SELECTION_DIRECTTI;
/* reset the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
/* reset the CH0CAPFLT bit */
TIMER_CHCTL0(timer_periph) |= (uint32_t)(extfilter << 4U);
/* set the CH0EN bit */
TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
}
/* select TIMER input trigger source */
timer_input_trigger_source_select(timer_periph, extrigger);
/* reset the SMC bit */
TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_SMC);
/* set the SMC bit */
TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SLAVE_MODE_EXTERNAL0;
}
/*!
\brief configure TIMER the external clock mode0
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] extprescaler:
only one parameter can be selected which is shown as below:
\arg TIMER_EXT_TRI_PSC_OFF: no divided
\arg TIMER_EXT_TRI_PSC_DIV2: divided by 2
\arg TIMER_EXT_TRI_PSC_DIV4: divided by 4
\arg TIMER_EXT_TRI_PSC_DIV8: divided by 8
\param[in] extpolarity:
only one parameter can be selected which is shown as below:
\arg TIMER_ETP_FALLING: active low or falling edge active
\arg TIMER_ETP_RISING: active high or rising edge active
\param[in] extfilter: a value between 0 and 15
\param[out] none
\retval none
*/
void timer_external_clock_mode0_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter)
{
/* configure TIMER external trigger input */
timer_external_trigger_config(timer_periph, extprescaler, extpolarity, extfilter);
/* reset the SMC bit,TRGS bit */
TIMER_SMCFG(timer_periph) &= (~(uint32_t)(TIMER_SMCFG_SMC | TIMER_SMCFG_TRGS));
/* set the SMC bit,TRGS bit */
TIMER_SMCFG(timer_periph) |= (uint32_t)(TIMER_SLAVE_MODE_EXTERNAL0 | TIMER_SMCFG_TRGSEL_ETIFP);
}
/*!
\brief configure TIMER the external clock mode1
\param[in] timer_periph: TIMERx(x=0..4)
\param[in] extprescaler:
only one parameter can be selected which is shown as below:
\arg TIMER_EXT_TRI_PSC_OFF: no divided
\arg TIMER_EXT_TRI_PSC_DIV2: divided by 2
\arg TIMER_EXT_TRI_PSC_DIV4: divided by 4
\arg TIMER_EXT_TRI_PSC_DIV8: divided by 8
\param[in] extpolarity:
only one parameter can be selected which is shown as below:
\arg TIMER_ETP_FALLING: active low or falling edge active
\arg TIMER_ETP_RISING: active high or rising edge active
\param[in] extfilter: a value between 0 and 15
\param[out] none
\retval none
*/
void timer_external_clock_mode1_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter)
{
/* configure TIMER external trigger input */
timer_external_trigger_config(timer_periph, extprescaler, extpolarity, extfilter);
TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SMCFG_SMC1;
}
/*!
\brief disable TIMER the external clock mode1
\param[in] timer_periph: TIMERx(x=0..4)
\param[out] none
\retval none
*/
void timer_external_clock_mode1_disable(uint32_t timer_periph)
{
TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_SMC1;
}
/*!
\brief enable the TIMER interrupt
\param[in] timer_periph: please refer to the following parameters
\param[in] interrupt: specify which interrupt to enable
one or more parameters can be selected which are shown as below:
\arg TIMER_INT_UP: update interrupt enable, TIMERx(x=0..6)
\arg TIMER_INT_CH0: channel 0 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CH1: channel 1 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CH2: channel 2 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CH3: channel 3 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CMT: commutation interrupt enable, TIMERx(x=0)
\arg TIMER_INT_TRG: trigger interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_BRK: break interrupt enable, TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_interrupt_enable(uint32_t timer_periph, uint32_t interrupt)
{
TIMER_DMAINTEN(timer_periph) |= (uint32_t) interrupt;
}
/*!
\brief disable the TIMER interrupt
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] interrupt: specify which interrupt to disbale
one or more parameters can be selected which are shown as below:
\arg TIMER_INT_UP: update interrupt enable, TIMERx(x=0..6)
\arg TIMER_INT_CH0: channel 0 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CH1: channel 1 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CH2: channel 2 interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_CH3: channel 3 interrupt enable , TIMERx(x=0..4)
\arg TIMER_INT_CMT: commutation interrupt enable, TIMERx(x=0)
\arg TIMER_INT_TRG: trigger interrupt enable, TIMERx(x=0..4)
\arg TIMER_INT_BRK: break interrupt enable, TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_interrupt_disable(uint32_t timer_periph, uint32_t interrupt)
{
TIMER_DMAINTEN(timer_periph) &= (~(uint32_t)interrupt);
}
/*!
\brief get timer interrupt flag
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] interrupt: the timer interrupt bits
only one parameter can be selected which is shown as below:
\arg TIMER_INT_FLAG_UP: update interrupt flag, TIMERx(x=0..6)
\arg TIMER_INT_FLAG_CH0: channel 0 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CH1: channel 1 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CH2: channel 2 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CH3: channel 3 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CMT: channel commutation interrupt flag, TIMERx(x=0)
\arg TIMER_INT_FLAG_TRG: trigger interrupt flag, TIMERx(x=0)
\arg TIMER_INT_FLAG_BRK: break interrupt flag, TIMERx(x=0)
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus timer_interrupt_flag_get(uint32_t timer_periph, uint32_t interrupt)
{
uint32_t val;
val = (TIMER_DMAINTEN(timer_periph) & interrupt);
if((RESET != (TIMER_INTF(timer_periph) & interrupt)) && (RESET != val)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear TIMER interrupt flag
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] interrupt: the timer interrupt bits
one or more parameters can be selected which are shown as below:
\arg TIMER_INT_FLAG_UP: update interrupt flag, TIMERx(x=0..6)
\arg TIMER_INT_FLAG_CH0: channel 0 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CH1: channel 1 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CH2: channel 2 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CH3: channel 3 interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_CMT: channel commutation interrupt flag, TIMERx(x=0)
\arg TIMER_INT_FLAG_TRG: trigger interrupt flag, TIMERx(x=0..4)
\arg TIMER_INT_FLAG_BRK: break interrupt flag, TIMERx(x=0)
\param[out] none
\retval none
*/
void timer_interrupt_flag_clear(uint32_t timer_periph, uint32_t interrupt)
{
TIMER_INTF(timer_periph) = (~(uint32_t)interrupt);
}
/*!
\brief get TIMER flags
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] flag: the timer interrupt flags
only one parameter can be selected which is shown as below:
\arg TIMER_FLAG_UP: update flag, TIMERx(x=0..6)
\arg TIMER_FLAG_CH0: channel 0 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH1: channel 1 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH2: channel 2 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH3: channel 3 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CMT: channel commutation flag, TIMERx(x=0)
\arg TIMER_FLAG_TRG: trigger flag, TIMERx(x=0..4)
\arg TIMER_FLAG_BRK: break flag, TIMERx(x=0)
\arg TIMER_FLAG_CH0O: channel 0 overcapture flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH1O: channel 1 overcapture flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH2O: channel 2 overcapture flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH3O: channel 3 overcapture flag, TIMERx(x=0..4)
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus timer_flag_get(uint32_t timer_periph, uint32_t flag)
{
if(RESET != (TIMER_INTF(timer_periph) & flag)){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear TIMER flags
\param[in] timer_periph: TIMERx(x=0..6)
\param[in] flag: the timer interrupt flags
one or more parameters can be selected which are shown as below:
\arg TIMER_FLAG_UP: update flag, TIMERx(x=0..6)
\arg TIMER_FLAG_CH0: channel 0 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH1: channel 1 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH2: channel 2 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH3: channel 3 flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CMT: channel commutation flag, TIMERx(x=0)
\arg TIMER_FLAG_TRG: trigger flag, TIMERx(x=0..4)
\arg TIMER_FLAG_BRK: break flag, TIMERx(x=0)
\arg TIMER_FLAG_CH0O: channel 0 overcapture flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH1O: channel 1 overcapture flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH2O: channel 2 overcapture flag, TIMERx(x=0..4)
\arg TIMER_FLAG_CH3O: channel 3 overcapture flag, TIMERx(x=0..4)
\param[out] none
\retval none
*/
void timer_flag_clear(uint32_t timer_periph, uint32_t flag)
{
TIMER_INTF(timer_periph) = (~(uint32_t)flag);
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_usart.c
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/*!
\file gd32vf103_usart.c
\brief USART driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
\version 2019-09-18, V1.0.1, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_usart.h"
/*!
\brief reset USART/UART
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_deinit(uint32_t usart_periph)
{
switch(usart_periph){
case USART0:
/* reset USART0 */
rcu_periph_reset_enable(RCU_USART0RST);
rcu_periph_reset_disable(RCU_USART0RST);
break;
case USART1:
/* reset USART1 */
rcu_periph_reset_enable(RCU_USART1RST);
rcu_periph_reset_disable(RCU_USART1RST);
break;
case USART2:
/* reset USART2 */
rcu_periph_reset_enable(RCU_USART2RST);
rcu_periph_reset_disable(RCU_USART2RST);
break;
case UART3:
/* reset UART3 */
rcu_periph_reset_enable(RCU_UART3RST);
rcu_periph_reset_disable(RCU_UART3RST);
break;
case UART4:
/* reset UART4 */
rcu_periph_reset_enable(RCU_UART4RST);
rcu_periph_reset_disable(RCU_UART4RST);
break;
default:
break;
}
}
/*!
\brief configure USART baud rate value
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] baudval: baud rate value
\param[out] none
\retval none
*/
void usart_baudrate_set(uint32_t usart_periph, uint32_t baudval)
{
uint32_t uclk=0U, intdiv=0U, fradiv=0U, udiv=0U;
switch(usart_periph){
/* get clock frequency */
case USART0:
/* get USART0 clock */
uclk=rcu_clock_freq_get(CK_APB2);
break;
case USART1:
/* get USART1 clock */
uclk=rcu_clock_freq_get(CK_APB1);
break;
case USART2:
/* get USART2 clock */
uclk=rcu_clock_freq_get(CK_APB1);
break;
case UART3:
/* get UART3 clock */
uclk=rcu_clock_freq_get(CK_APB1);
break;
case UART4:
/* get UART4 clock */
uclk=rcu_clock_freq_get(CK_APB1);
break;
default:
break;
}
/* oversampling by 16, configure the value of USART_BAUD */
udiv = (uclk+baudval/2U)/baudval;
intdiv = udiv & (0x0000fff0U);
fradiv = udiv & (0x0000000fU);
USART_BAUD(usart_periph) = ((USART_BAUD_FRADIV | USART_BAUD_INTDIV) & (intdiv | fradiv));
}
/*!
\brief configure USART parity
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] paritycfg: configure USART parity
only one parameter can be selected which is shown as below:
\arg USART_PM_NONE: no parity
\arg USART_PM_ODD: odd parity
\arg USART_PM_EVEN: even parity
\param[out] none
\retval none
*/
void usart_parity_config(uint32_t usart_periph, uint32_t paritycfg)
{
/* clear USART_CTL0 PM,PCEN bits */
USART_CTL0(usart_periph) &= ~(USART_CTL0_PM | USART_CTL0_PCEN);
/* configure USART parity mode */
USART_CTL0(usart_periph) |= paritycfg ;
}
/*!
\brief configure USART word length
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] wlen: USART word length configure
only one parameter can be selected which is shown as below:
\arg USART_WL_8BIT: 8 bits
\arg USART_WL_9BIT: 9 bits
\param[out] none
\retval none
*/
void usart_word_length_set(uint32_t usart_periph, uint32_t wlen)
{
/* clear USART_CTL0 WL bit */
USART_CTL0(usart_periph) &= ~USART_CTL0_WL;
/* configure USART word length */
USART_CTL0(usart_periph) |= wlen;
}
/*!
\brief configure USART stop bit length
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] stblen: USART stop bit configure
only one parameter can be selected which is shown as below:
\arg USART_STB_1BIT: 1 bit
\arg USART_STB_0_5BIT: 0.5 bit, not available for UARTx(x=3,4)
\arg USART_STB_2BIT: 2 bits
\arg USART_STB_1_5BIT: 1.5 bits, not available for UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_stop_bit_set(uint32_t usart_periph, uint32_t stblen)
{
/* clear USART_CTL1 STB bits */
USART_CTL1(usart_periph) &= ~USART_CTL1_STB;
/* configure USART stop bits */
USART_CTL1(usart_periph) |= stblen;
}
/*!
\brief enable USART
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_enable(uint32_t usart_periph)
{
USART_CTL0(usart_periph) |= USART_CTL0_UEN;
}
/*!
\brief disable USART
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_disable(uint32_t usart_periph)
{
USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
}
/*!
\brief configure USART transmitter
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] txconfig: enable or disable USART transmitter
only one parameter can be selected which is shown as below:
\arg USART_TRANSMIT_ENABLE: enable USART transmission
\arg USART_TRANSMIT_DISABLE: disable USART transmission
\param[out] none
\retval none
*/
void usart_transmit_config(uint32_t usart_periph, uint32_t txconfig)
{
uint32_t ctl = 0U;
ctl = USART_CTL0(usart_periph);
ctl &= ~USART_CTL0_TEN;
ctl |= txconfig;
/* configure transfer mode */
USART_CTL0(usart_periph) = ctl;
}
/*!
\brief configure USART receiver
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] rxconfig: enable or disable USART receiver
only one parameter can be selected which is shown as below:
\arg USART_RECEIVE_ENABLE: enable USART reception
\arg USART_RECEIVE_DISABLE: disable USART reception
\param[out] none
\retval none
*/
void usart_receive_config(uint32_t usart_periph, uint32_t rxconfig)
{
uint32_t ctl = 0U;
ctl = USART_CTL0(usart_periph);
ctl &= ~USART_CTL0_REN;
ctl |= rxconfig;
/* configure receiver mode */
USART_CTL0(usart_periph) = ctl;
}
/*!
\brief USART transmit data function
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] data: data of transmission
\param[out] none
\retval none
*/
void usart_data_transmit(uint32_t usart_periph, uint32_t data)
{
USART_DATA(usart_periph) = USART_DATA_DATA & data;
}
/*!
\brief USART receive data function
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval data of received
*/
uint16_t usart_data_receive(uint32_t usart_periph)
{
return (uint16_t)(GET_BITS(USART_DATA(usart_periph), 0U, 8U));
}
/*!
\brief configure the address of the USART in wake up by address match mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] addr: address of USART/UART
\param[out] none
\retval none
*/
void usart_address_config(uint32_t usart_periph, uint8_t addr)
{
USART_CTL1(usart_periph) &= ~(USART_CTL1_ADDR);
USART_CTL1(usart_periph) |= (USART_CTL1_ADDR & addr);
}
/*!
\brief receiver in mute mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_mute_mode_enable(uint32_t usart_periph)
{
USART_CTL0(usart_periph) |= USART_CTL0_RWU;
}
/*!
\brief receiver in active mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_mute_mode_disable(uint32_t usart_periph)
{
USART_CTL0(usart_periph) &= ~(USART_CTL0_RWU);
}
/*!
\brief configure wakeup method in mute mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] wmethod: two methods be used to enter or exit the mute mode
only one parameter can be selected which is shown as below:
\arg USART_WM_IDLE: idle line
\arg USART_WM_ADDR: address mask
\param[out] none
\retval none
*/
void usart_mute_mode_wakeup_config(uint32_t usart_periph, uint32_t wmethod)
{
USART_CTL0(usart_periph) &= ~(USART_CTL0_WM);
USART_CTL0(usart_periph) |= wmethod;
}
/*!
\brief enable LIN mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_lin_mode_enable(uint32_t usart_periph)
{
USART_CTL1(usart_periph) |= USART_CTL1_LMEN;
}
/*!
\brief disable LIN mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_lin_mode_disable(uint32_t usart_periph)
{
USART_CTL1(usart_periph) &= ~(USART_CTL1_LMEN);
}
/*!
\brief configure lin break frame length
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] lblen: lin break frame length
only one parameter can be selected which is shown as below:
\arg USART_LBLEN_10B: 10 bits
\arg USART_LBLEN_11B: 11 bits
\param[out] none
\retval none
*/
void usart_lin_break_detection_length_config(uint32_t usart_periph, uint32_t lblen)
{
USART_CTL1(usart_periph) &= ~(USART_CTL1_LBLEN);
USART_CTL1(usart_periph) |= (USART_CTL1_LBLEN & lblen);
}
/*!
\brief send break frame
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_send_break(uint32_t usart_periph)
{
USART_CTL0(usart_periph) |= USART_CTL0_SBKCMD;
}
/*!
\brief enable half duplex mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_halfduplex_enable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) |= USART_CTL2_HDEN;
}
/*!
\brief disable half duplex mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_halfduplex_disable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) &= ~(USART_CTL2_HDEN);
}
/*!
\brief enable CK pin in synchronous mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[out] none
\retval none
*/
void usart_synchronous_clock_enable(uint32_t usart_periph)
{
USART_CTL1(usart_periph) |= USART_CTL1_CKEN;
}
/*!
\brief disable CK pin in synchronous mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[out] none
\retval none
*/
void usart_synchronous_clock_disable(uint32_t usart_periph)
{
USART_CTL1(usart_periph) &= ~(USART_CTL1_CKEN);
}
/*!
\brief configure USART synchronous mode parameters
\param[in] usart_periph: USARTx(x=0,1,2)
\param[in] clen: CK length
only one parameter can be selected which is shown as below:
\arg USART_CLEN_NONE: there are 7 CK pulses for an 8 bit frame and 8 CK pulses for a 9 bit frame
\arg USART_CLEN_EN: there are 8 CK pulses for an 8 bit frame and 9 CK pulses for a 9 bit frame
\param[in] cph: clock phase
only one parameter can be selected which is shown as below:
\arg USART_CPH_1CK: first clock transition is the first data capture edge
\arg USART_CPH_2CK: second clock transition is the first data capture edge
\param[in] cpl: clock polarity
only one parameter can be selected which is shown as below:
\arg USART_CPL_LOW: steady low value on CK pin
\arg USART_CPL_HIGH: steady high value on CK pin
\param[out] none
\retval none
*/
void usart_synchronous_clock_config(uint32_t usart_periph, uint32_t clen, uint32_t cph, uint32_t cpl)
{
uint32_t ctl = 0U;
/* read USART_CTL1 register */
ctl = USART_CTL1(usart_periph);
ctl &= ~(USART_CTL1_CLEN | USART_CTL1_CPH | USART_CTL1_CPL);
/* set CK length, CK phase, CK polarity */
ctl |= (USART_CTL1_CLEN & clen) | (USART_CTL1_CPH & cph) | (USART_CTL1_CPL & cpl);
USART_CTL1(usart_periph) = ctl;
}
/*!
\brief configure guard time value in smartcard mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[in] gaut: guard time value
\param[out] none
\retval none
*/
void usart_guard_time_config(uint32_t usart_periph,uint32_t gaut)
{
USART_GP(usart_periph) &= ~(USART_GP_GUAT);
USART_GP(usart_periph) |= (USART_GP_GUAT & ((gaut)<<8));
}
/*!
\brief enable smartcard mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[out] none
\retval none
*/
void usart_smartcard_mode_enable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) |= USART_CTL2_SCEN;
}
/*!
\brief disable smartcard mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[out] none
\retval none
*/
void usart_smartcard_mode_disable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) &= ~(USART_CTL2_SCEN);
}
/*!
\brief enable NACK in smartcard mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[out] none
\retval none
*/
void usart_smartcard_mode_nack_enable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) |= USART_CTL2_NKEN;
}
/*!
\brief disable NACK in smartcard mode
\param[in] usart_periph: USARTx(x=0,1,2)
\param[out] none
\retval none
*/
void usart_smartcard_mode_nack_disable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) &= ~(USART_CTL2_NKEN);
}
/*!
\brief enable IrDA mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_irda_mode_enable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) |= USART_CTL2_IREN;
}
/*!
\brief disable IrDA mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[out] none
\retval none
*/
void usart_irda_mode_disable(uint32_t usart_periph)
{
USART_CTL2(usart_periph) &= ~(USART_CTL2_IREN);
}
/*!
\brief configure the peripheral clock prescaler in USART IrDA low-power mode
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] psc: 0x00-0xFF
\param[out] none
\retval none
*/
void usart_prescaler_config(uint32_t usart_periph, uint8_t psc)
{
USART_GP(usart_periph) &= ~(USART_GP_PSC);
USART_GP(usart_periph) |= psc;
}
/*!
\brief configure IrDA low-power
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] irlp: IrDA low-power or normal
only one parameter can be selected which is shown as below:
\arg USART_IRLP_LOW: low-power
\arg USART_IRLP_NORMAL: normal
\param[out] none
\retval none
*/
void usart_irda_lowpower_config(uint32_t usart_periph, uint32_t irlp)
{
USART_CTL2(usart_periph) &= ~(USART_CTL2_IRLP);
USART_CTL2(usart_periph) |= (USART_CTL2_IRLP & irlp);
}
/*!
\brief configure hardware flow control RTS
\param[in] usart_periph: USARTx(x=0,1,2)
\param[in] rtsconfig: enable or disable RTS
only one parameter can be selected which is shown as below:
\arg USART_RTS_ENABLE: enable RTS
\arg USART_RTS_DISABLE: disable RTS
\param[out] none
\retval none
*/
void usart_hardware_flow_rts_config(uint32_t usart_periph, uint32_t rtsconfig)
{
uint32_t ctl = 0U;
ctl = USART_CTL2(usart_periph);
ctl &= ~USART_CTL2_RTSEN;
ctl |= rtsconfig;
/* configure RTS */
USART_CTL2(usart_periph) = ctl;
}
/*!
\brief configure hardware flow control CTS
\param[in] usart_periph: USARTx(x=0,1,2)
\param[in] ctsconfig: enable or disable CTS
only one parameter can be selected which is shown as below:
\arg USART_CTS_ENABLE: enable CTS
\arg USART_CTS_DISABLE: disable CTS
\param[out] none
\retval none
*/
void usart_hardware_flow_cts_config(uint32_t usart_periph, uint32_t ctsconfig)
{
uint32_t ctl = 0U;
ctl = USART_CTL2(usart_periph);
ctl &= ~USART_CTL2_CTSEN;
ctl |= ctsconfig;
/* configure CTS */
USART_CTL2(usart_periph) = ctl;
}
/*!
\brief configure USART DMA reception
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3)
\param[in] dmacmd: enable or disable DMA for reception
only one parameter can be selected which is shown as below:
\arg USART_DENR_ENABLE: DMA enable for reception
\arg USART_DENR_DISABLE: DMA disable for reception
\param[out] none
\retval none
*/
void usart_dma_receive_config(uint32_t usart_periph, uint32_t dmacmd)
{
uint32_t ctl = 0U;
ctl = USART_CTL2(usart_periph);
ctl &= ~USART_CTL2_DENR;
ctl |= dmacmd;
/* configure DMA reception */
USART_CTL2(usart_periph) = ctl;
}
/*!
\brief configure USART DMA transmission
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3)
\param[in] dmacmd: enable or disable DMA for transmission
only one parameter can be selected which is shown as below:
\arg USART_DENT_ENABLE: DMA enable for transmission
\arg USART_DENT_DISABLE: DMA disable for transmission
\param[out] none
\retval none
*/
void usart_dma_transmit_config(uint32_t usart_periph, uint32_t dmacmd)
{
uint32_t ctl = 0U;
ctl = USART_CTL2(usart_periph);
ctl &= ~USART_CTL2_DENT;
ctl |= dmacmd;
/* configure DMA transmission */
USART_CTL2(usart_periph) = ctl;
}
/*!
\brief get flag in STAT register
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] flag: USART flags, refer to usart_flag_enum
only one parameter can be selected which is shown as below:
\arg USART_FLAG_CTS: CTS change flag
\arg USART_FLAG_LBD: LIN break detected flag
\arg USART_FLAG_TBE: transmit data buffer empty
\arg USART_FLAG_TC: transmission complete
\arg USART_FLAG_RBNE: read data buffer not empty
\arg USART_FLAG_IDLE: IDLE frame detected flag
\arg USART_FLAG_ORERR: overrun error
\arg USART_FLAG_NERR: noise error flag
\arg USART_FLAG_FERR: frame error flag
\arg USART_FLAG_PERR: parity error flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus usart_flag_get(uint32_t usart_periph, usart_flag_enum flag)
{
if(RESET != (USART_REG_VAL(usart_periph, flag) & BIT(USART_BIT_POS(flag)))){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear flag in STAT register
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] flag: USART flags, refer to usart_flag_enum
only one parameter can be selected which is shown as below:
\arg USART_FLAG_CTS: CTS change flag
\arg USART_FLAG_LBD: LIN break detected flag
\arg USART_FLAG_TC: transmission complete
\arg USART_FLAG_RBNE: read data buffer not empty
\param[out] none
\retval none
*/
void usart_flag_clear(uint32_t usart_periph, usart_flag_enum flag)
{
USART_REG_VAL(usart_periph, flag) &= ~BIT(USART_BIT_POS(flag));
}
/*!
\brief enable USART interrupt
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] interrupt
only one parameter can be selected which is shown as below:
\arg USART_INT_PERR: parity error interrupt
\arg USART_INT_TBE: transmitter buffer empty interrupt
\arg USART_INT_TC: transmission complete interrupt
\arg USART_INT_RBNE: read data buffer not empty interrupt and overrun error interrupt
\arg USART_INT_IDLE: IDLE line detected interrupt
\arg USART_INT_LBD: LIN break detected interrupt
\arg USART_INT_ERR: error interrupt
\arg USART_INT_CTS: CTS interrupt
\param[out] none
\retval none
*/
void usart_interrupt_enable(uint32_t usart_periph, uint32_t interrupt)
{
USART_REG_VAL(usart_periph, interrupt) |= BIT(USART_BIT_POS(interrupt));
}
/*!
\brief disable USART interrupt
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] interrupt
only one parameter can be selected which is shown as below:
\arg USART_INT_PERR: parity error interrupt
\arg USART_INT_TBE: transmitter buffer empty interrupt
\arg USART_INT_TC: transmission complete interrupt
\arg USART_INT_RBNE: read data buffer not empty interrupt and overrun error interrupt
\arg USART_INT_IDLE: IDLE line detected interrupt
\arg USART_INT_LBD: LIN break detected interrupt
\arg USART_INT_ERR: error interrupt
\arg USART_INT_CTS: CTS interrupt
\param[out] none
\retval none
*/
void usart_interrupt_disable(uint32_t usart_periph, uint32_t interrupt)
{
USART_REG_VAL(usart_periph, interrupt) &= ~BIT(USART_BIT_POS(interrupt));
}
/*!
\brief get USART interrupt and flag status
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] int_flag
only one parameter can be selected which is shown as below:
\arg USART_INT_FLAG_PERR: parity error interrupt and flag
\arg USART_INT_FLAG_TBE: transmitter buffer empty interrupt and flag
\arg USART_INT_FLAG_TC: transmission complete interrupt and flag
\arg USART_INT_FLAG_RBNE: read data buffer not empty interrupt and flag
\arg USART_INT_FLAG_RBNE_ORERR: read data buffer not empty interrupt and overrun error flag
\arg USART_INT_FLAG_IDLE: IDLE line detected interrupt and flag
\arg USART_INT_FLAG_LBD: LIN break detected interrupt and flag
\arg USART_INT_FLAG_CTS: CTS interrupt and flag
\arg USART_INT_FLAG_ERR_ORERR: error interrupt and overrun error
\arg USART_INT_FLAG_ERR_NERR: error interrupt and noise error flag
\arg USART_INT_FLAG_ERR_FERR: error interrupt and frame error flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus usart_interrupt_flag_get(uint32_t usart_periph, uint32_t int_flag)
{
uint32_t intenable = 0U, flagstatus = 0U;
/* get the interrupt enable bit status */
intenable = (USART_REG_VAL(usart_periph, int_flag) & BIT(USART_BIT_POS(int_flag)));
/* get the corresponding flag bit status */
flagstatus = (USART_REG_VAL2(usart_periph, int_flag) & BIT(USART_BIT_POS2(int_flag)));
if(flagstatus && intenable){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear USART interrupt flag in STAT register
\param[in] usart_periph: USARTx(x=0,1,2)/UARTx(x=3,4)
\param[in] int_flag: USART interrupt flag
only one parameter can be selected which is shown as below:
\arg USART_INT_FLAG_CTS: CTS change flag
\arg USART_INT_FLAG_LBD: LIN break detected flag
\arg USART_INT_FLAG_TC: transmission complete
\arg USART_INT_FLAG_RBNE: read data buffer not empty
\param[out] none
\retval none
*/
void usart_interrupt_flag_clear(uint32_t usart_periph, uint32_t int_flag)
{
USART_REG_VAL2(usart_periph, int_flag) &= ~BIT(USART_BIT_POS2(int_flag));
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/Source/gd32vf103_wwdgt.c
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/*!
\file gd32vf103_wwdgt.c
\brief WWDGT driver
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32vf103_wwdgt.h"
/* write value to WWDGT_CTL_CNT bit field */
#define CTL_CNT(regval) (BITS(0,6) & ((uint32_t)(regval) << 0))
/* write value to WWDGT_CFG_WIN bit field */
#define CFG_WIN(regval) (BITS(0,6) & ((uint32_t)(regval) << 0))
/*!
\brief reset the window watchdog timer configuration
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_deinit(void)
{
rcu_periph_reset_enable(RCU_WWDGTRST);
rcu_periph_reset_disable(RCU_WWDGTRST);
}
/*!
\brief start the window watchdog timer counter
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_enable(void)
{
WWDGT_CTL |= WWDGT_CTL_WDGTEN;
}
/*!
\brief configure the window watchdog timer counter value
\param[in] counter_value: 0x00 - 0x7F
\param[out] none
\retval none
*/
void wwdgt_counter_update(uint16_t counter_value)
{
uint32_t reg = 0U;
reg = (WWDGT_CTL & (~WWDGT_CTL_CNT));
reg |= CTL_CNT(counter_value);
WWDGT_CTL = reg;
}
/*!
\brief configure counter value, window value, and prescaler divider value
\param[in] counter: 0x00 - 0x7F
\param[in] window: 0x00 - 0x7F
\param[in] prescaler: wwdgt prescaler value
only one parameter can be selected which is shown as below:
\arg WWDGT_CFG_PSC_DIV1: the time base of window watchdog counter = (PCLK1/4096)/1
\arg WWDGT_CFG_PSC_DIV2: the time base of window watchdog counter = (PCLK1/4096)/2
\arg WWDGT_CFG_PSC_DIV4: the time base of window watchdog counter = (PCLK1/4096)/4
\arg WWDGT_CFG_PSC_DIV8: the time base of window watchdog counter = (PCLK1/4096)/8
\param[out] none
\retval none
*/
void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler)
{
uint32_t reg_cfg = 0U, reg_ctl = 0U;
/* clear WIN and PSC bits, clear CNT bit */
reg_cfg = (WWDGT_CFG &(~(WWDGT_CFG_WIN|WWDGT_CFG_PSC)));
reg_ctl = (WWDGT_CTL &(~WWDGT_CTL_CNT));
/* configure WIN and PSC bits, configure CNT bit */
reg_cfg |= CFG_WIN(window);
reg_cfg |= prescaler;
reg_ctl |= CTL_CNT(counter);
WWDGT_CTL = reg_ctl;
WWDGT_CFG = reg_cfg;
}
/*!
\brief enable early wakeup interrupt of WWDGT
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_interrupt_enable(void)
{
WWDGT_CFG |= WWDGT_CFG_EWIE;
}
/*!
\brief check early wakeup interrupt state of WWDGT
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus wwdgt_flag_get(void)
{
if(WWDGT_STAT & WWDGT_STAT_EWIF){
return SET;
}
return RESET;
}
/*!
\brief clear early wakeup interrupt state of WWDGT
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_flag_clear(void)
{
WWDGT_STAT &= (~WWDGT_STAT_EWIF);
}

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RISC-V/Firmware/GD32VF103_standard_peripheral/gd32vf103.h
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/*!
\file gd32vf103.h
\brief general definitions for GD32VF103
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32VF103_H
#define GD32VF103_H
#ifdef cplusplus
extern "C" {
#endif
/* IO definitions (access restrictions to peripheral registers) */
/**
<strong>IO Type Qualifiers</strong> are used
\li to specify the access to peripheral variables.
\li for automatic generation of peripheral register debug information.
*/
#ifdef __cplusplus
#define __I volatile /*!< Defines 'read only' permissions */
#else
#define __I volatile const /*!< Defines 'read only' permissions */
#endif
#define __O volatile /*!< Defines 'write only' permissions */
#define __IO volatile /*!< Defines 'read / write' permissions */
/* define value of high speed crystal oscillator (HXTAL) in Hz */
#if !defined HXTAL_VALUE
#ifdef GD32VF103R_START
#define HXTAL_VALUE ((uint32_t)25000000) /*!< value of the external oscillator in Hz */
#define HXTAL_VALUE_8M HXTAL_VALUE
#elif defined(GD32VF103V_EVAL) || defined(GD32VF103C_START) || defined(GD32VF103T_START)
#define HXTAL_VALUE ((uint32_t)8000000) /*!< value of the external oscillator in Hz */
#define HXTAL_VALUE_25M HXTAL_VALUE
#else
#error "Please select the target board type used in your application (in gd32vf103.h file)"
#endif
#endif /* high speed crystal oscillator value */
/* define startup timeout value of high speed crystal oscillator (HXTAL) */
#if !defined (HXTAL_STARTUP_TIMEOUT)
#define HXTAL_STARTUP_TIMEOUT ((uint16_t)0xFFFF)
#endif /* high speed crystal oscillator startup timeout */
/* define value of internal 8MHz RC oscillator (IRC8M) in Hz */
#if !defined (IRC8M_VALUE)
#define IRC8M_VALUE ((uint32_t)8000000)
#endif /* internal 8MHz RC oscillator value */
/* define startup timeout value of internal 8MHz RC oscillator (IRC8M) */
#if !defined (IRC8M_STARTUP_TIMEOUT)
#define IRC8M_STARTUP_TIMEOUT ((uint16_t)0x0500)
#endif /* internal 8MHz RC oscillator startup timeout */
/* define value of internal 40KHz RC oscillator(IRC40K) in Hz */
#if !defined (IRC40K_VALUE)
#define IRC40K_VALUE ((uint32_t)40000)
#endif /* internal 40KHz RC oscillator value */
/* define value of low speed crystal oscillator (LXTAL)in Hz */
#if !defined (LXTAL_VALUE)
#define LXTAL_VALUE ((uint32_t)32768)
#endif /* low speed crystal oscillator value */
/* define interrupt number */
typedef enum IRQn
{
CLIC_INT_RESERVED = 0, /*!< RISC-V reserved */
CLIC_INT_SFT = 3, /*!< Software interrupt */
CLIC_INT_TMR = 7, /*!< CPU Timer interrupt */
CLIC_INT_BWEI = 17, /*!< Bus Error interrupt */
CLIC_INT_PMOVI = 18, /*!< Performance Monitor */
/* interruput numbers */
WWDGT_IRQn = 19, /*!< window watchDog timer interrupt */
LVD_IRQn = 20, /*!< LVD through EXTI line detect interrupt */
TAMPER_IRQn = 21, /*!< tamper through EXTI line detect */
RTC_IRQn = 22, /*!< RTC alarm interrupt */
FMC_IRQn = 23, /*!< FMC interrupt */
RCU_CTC_IRQn = 24, /*!< RCU and CTC interrupt */
EXTI0_IRQn = 25, /*!< EXTI line 0 interrupts */
EXTI1_IRQn = 26, /*!< EXTI line 1 interrupts */
EXTI2_IRQn = 27, /*!< EXTI line 2 interrupts */
EXTI3_IRQn = 28, /*!< EXTI line 3 interrupts */
EXTI4_IRQn = 29, /*!< EXTI line 4 interrupts */
DMA0_Channel0_IRQn = 30, /*!< DMA0 channel0 interrupt */
DMA0_Channel1_IRQn = 31, /*!< DMA0 channel1 interrupt */
DMA0_Channel2_IRQn = 32, /*!< DMA0 channel2 interrupt */
DMA0_Channel3_IRQn = 33, /*!< DMA0 channel3 interrupt */
DMA0_Channel4_IRQn = 34, /*!< DMA0 channel4 interrupt */
DMA0_Channel5_IRQn = 35, /*!< DMA0 channel5 interrupt */
DMA0_Channel6_IRQn = 36, /*!< DMA0 channel6 interrupt */
ADC0_1_IRQn = 37, /*!< ADC0 and ADC1 interrupt */
CAN0_TX_IRQn = 38, /*!< CAN0 TX interrupts */
CAN0_RX0_IRQn = 39, /*!< CAN0 RX0 interrupts */
CAN0_RX1_IRQn = 40, /*!< CAN0 RX1 interrupts */
CAN0_EWMC_IRQn = 41, /*!< CAN0 EWMC interrupts */
EXTI5_9_IRQn = 42, /*!< EXTI[9:5] interrupts */
TIMER0_BRK_IRQn = 43, /*!< TIMER0 break interrupts */
TIMER0_UP_IRQn = 44, /*!< TIMER0 update interrupts */
TIMER0_TRG_CMT_IRQn = 45, /*!< TIMER0 trigger and commutation interrupts */
TIMER0_Channel_IRQn = 46, /*!< TIMER0 channel capture compare interrupts */
TIMER1_IRQn = 47, /*!< TIMER1 interrupt */
TIMER2_IRQn = 48, /*!< TIMER2 interrupt */
TIMER3_IRQn = 49, /*!< TIMER3 interrupts */
I2C0_EV_IRQn = 50, /*!< I2C0 event interrupt */
I2C0_ER_IRQn = 51, /*!< I2C0 error interrupt */
I2C1_EV_IRQn = 52, /*!< I2C1 event interrupt */
I2C1_ER_IRQn = 53, /*!< I2C1 error interrupt */
SPI0_IRQn = 54, /*!< SPI0 interrupt */
SPI1_IRQn = 55, /*!< SPI1 interrupt */
USART0_IRQn = 56, /*!< USART0 interrupt */
USART1_IRQn = 57, /*!< USART1 interrupt */
USART2_IRQn = 58, /*!< USART2 interrupt */
EXTI10_15_IRQn = 59, /*!< EXTI[15:10] interrupts */
RTC_ALARM_IRQn = 60, /*!< RTC alarm interrupt EXTI */
USBFS_WKUP_IRQn = 61, /*!< USBFS wakeup interrupt */
EXMC_IRQn = 67, /*!< EXMC global interrupt */
TIMER4_IRQn = 69, /*!< TIMER4 global interrupt */
SPI2_IRQn = 70, /*!< SPI2 global interrupt */
UART3_IRQn = 71, /*!< UART3 global interrupt */
UART4_IRQn = 72, /*!< UART4 global interrupt */
TIMER5_IRQn = 73, /*!< TIMER5 global interrupt */
TIMER6_IRQn = 74, /*!< TIMER6 global interrupt */
DMA1_Channel0_IRQn = 75, /*!< DMA1 channel0 global interrupt */
DMA1_Channel1_IRQn = 76, /*!< DMA1 channel1 global interrupt */
DMA1_Channel2_IRQn = 77, /*!< DMA1 channel2 global interrupt */
DMA1_Channel3_IRQn = 78, /*!< DMA1 channel3 global interrupt */
DMA1_Channel4_IRQn = 79, /*!< DMA1 channel3 global interrupt */
CAN1_TX_IRQn = 82, /*!< CAN1 TX interrupt */
CAN1_RX0_IRQn = 83, /*!< CAN1 RX0 interrupt */
CAN1_RX1_IRQn = 84, /*!< CAN1 RX1 interrupt */
CAN1_EWMC_IRQn = 85, /*!< CAN1 EWMC interrupt */
USBFS_IRQn = 86, /*!< USBFS global interrupt */
ECLIC_NUM_INTERRUPTS
} IRQn_Type;
/* includes */
#include "system_gd32vf103.h"
#include <stdint.h>
/* enum definitions */
typedef enum {DISABLE = 0, ENABLE = !DISABLE} EventStatus, ControlStatus;
typedef enum {FALSE = 0, TRUE = !FALSE} bool;
typedef enum {RESET = 0, SET = 1,MAX = 0X7FFFFFFF} FlagStatus;
typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrStatus;
/* bit operations */
#define REG32(addr) (*(volatile uint32_t *)(uint32_t)(addr))
#define REG16(addr) (*(volatile uint16_t *)(uint32_t)(addr))
#define REG8(addr) (*(volatile uint8_t *)(uint32_t)(addr))
#define BIT(x) ((uint32_t)((uint32_t)0x01U<<(x)))
#define BITS(start, end) ((0xFFFFFFFFUL << (start)) & (0xFFFFFFFFUL >> (31U - (uint32_t)(end))))
#define GET_BITS(regval, start, end) (((regval) & BITS((start),(end))) >> (start))
/* main flash and SRAM memory map */
#define FLASH_BASE ((uint32_t)0x08000000U) /*!< main FLASH base address */
#define SRAM_BASE ((uint32_t)0x20000000U) /*!< SRAM0 base address */
#define OB_BASE ((uint32_t)0x1FFFF800U) /*!< OB base address */
#define DBG_BASE ((uint32_t)0xE0042000U) /*!< DBG base address */
#define EXMC_BASE ((uint32_t)0xA0000000U) /*!< EXMC register base address */
/* peripheral memory map */
#define APB1_BUS_BASE ((uint32_t)0x40000000U) /*!< apb1 base address */
#define APB2_BUS_BASE ((uint32_t)0x40010000U) /*!< apb2 base address */
#define AHB1_BUS_BASE ((uint32_t)0x40018000U) /*!< ahb1 base address */
#define AHB3_BUS_BASE ((uint32_t)0x60000000U) /*!< ahb3 base address */
/* advanced peripheral bus 1 memory map */
#define TIMER_BASE (APB1_BUS_BASE + 0x00000000U) /*!< TIMER base address */
#define RTC_BASE (APB1_BUS_BASE + 0x00002800U) /*!< RTC base address */
#define WWDGT_BASE (APB1_BUS_BASE + 0x00002C00U) /*!< WWDGT base address */
#define FWDGT_BASE (APB1_BUS_BASE + 0x00003000U) /*!< FWDGT base address */
#define SPI_BASE (APB1_BUS_BASE + 0x00003800U) /*!< SPI base address */
#define USART_BASE (APB1_BUS_BASE + 0x00004400U) /*!< USART base address */
#define I2C_BASE (APB1_BUS_BASE + 0x00005400U) /*!< I2C base address */
#define CAN_BASE (APB1_BUS_BASE + 0x00006400U) /*!< CAN base address */
#define BKP_BASE (APB1_BUS_BASE + 0x00006C00U) /*!< BKP base address */
#define PMU_BASE (APB1_BUS_BASE + 0x00007000U) /*!< PMU base address */
#define DAC_BASE (APB1_BUS_BASE + 0x00007400U) /*!< DAC base address */
/* advanced peripheral bus 2 memory map */
#define AFIO_BASE (APB2_BUS_BASE + 0x00000000U) /*!< AFIO base address */
#define EXTI_BASE (APB2_BUS_BASE + 0x00000400U) /*!< EXTI base address */
#define GPIO_BASE (APB2_BUS_BASE + 0x00000800U) /*!< GPIO base address */
#define ADC_BASE (APB2_BUS_BASE + 0x00002400U) /*!< ADC base address */
/* advanced high performance bus 1 memory map */
#define DMA_BASE (AHB1_BUS_BASE + 0x00008000U) /*!< DMA base address */
#define RCU_BASE (AHB1_BUS_BASE + 0x00009000U) /*!< RCU base address */
#define FMC_BASE (AHB1_BUS_BASE + 0x0000A000U) /*!< FMC base address */
#define CRC_BASE (AHB1_BUS_BASE + 0x0000B000U) /*!< CRC base address */
#define USBFS_BASE (AHB1_BUS_BASE + 0x0FFE8000U) /*!< USBFS base address */
/* define marco USE_STDPERIPH_DRIVER */
#if !defined USE_STDPERIPH_DRIVER
#define USE_STDPERIPH_DRIVER
#endif
#ifdef USE_STDPERIPH_DRIVER
#include "gd32vf103_libopt.h"
#endif /* USE_STDPERIPH_DRIVER */
#ifdef cplusplus
}
#endif
#endif

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RISC-V/Firmware/GD32VF103_standard_peripheral/system_gd32vf103.h
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/*!
\file system_gd32vf103.h
\brief RISC-V Device Peripheral Access Layer Header File for
GD32VF103 Device Series
\version 2019-06-05, V1.0.0, firmware for GD32VF103
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
/* This file refers the RISC-V standard, some adjustments are made according to GigaDevice chips */
#ifndef SYSTEM_GD32VF103_H
#define SYSTEM_GD32VF103_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
/* system clock frequency (core clock) */
extern uint32_t SystemCoreClock;
/* function declarations */
/* initialize the system and update the SystemCoreClock variable */
extern void SystemInit(void);
/* update the SystemCoreClock with current core clock retrieved from cpu registers */
extern void SystemCoreClockUpdate(void);
#ifdef __cplusplus
}
#endif
#endif /* SYSTEM_GD32VF103_H */
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