You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
163 lines
6.1 KiB
163 lines
6.1 KiB
/**
|
|
******************************************************************************
|
|
* File Name : stm32f4xx_hal_msp.c
|
|
* Date : 03/02/2015 20:27:00
|
|
* Description : This file provides code for the MSP Initialization
|
|
* and de-Initialization codes.
|
|
******************************************************************************
|
|
*
|
|
* COPYRIGHT(c) 2015 STMicroelectronics
|
|
*
|
|
* 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 STMicroelectronics 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.
|
|
*
|
|
******************************************************************************
|
|
*
|
|
* Modifications by Robert Fisk
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "stm32f4xx_hal.h"
|
|
#include "interrupts.h"
|
|
#include "board_config.h"
|
|
|
|
|
|
DMA_HandleTypeDef spiTxDmaHandle;
|
|
DMA_HandleTypeDef spiRxDmaHandle;
|
|
|
|
|
|
/**
|
|
* Initializes the Global MSP.
|
|
*/
|
|
void HAL_MspInit(void)
|
|
{
|
|
// HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
|
|
//
|
|
// /* System interrupt init*/
|
|
///* SysTick_IRQn interrupt configuration */
|
|
HAL_NVIC_SetPriority(SysTick_IRQn, INT_PRIORITY_SYSTICK, 0);
|
|
|
|
}
|
|
|
|
|
|
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
|
|
{
|
|
GPIO_InitTypeDef GPIO_InitStruct;
|
|
if(hspi->Instance==SPI1)
|
|
{
|
|
/* Peripheral clock enable */
|
|
__HAL_RCC_SPI1_CLK_ENABLE();
|
|
__HAL_RCC_DMA2_CLK_ENABLE();
|
|
|
|
/**SPI1 GPIO Configuration
|
|
PA4 ------> GPIO manual slave select
|
|
PA5 ------> SPI1_SCK
|
|
PA6 ------> SPI1_MISO
|
|
PA7 ------> SPI1_MOSI
|
|
*/
|
|
GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
|
|
GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
|
|
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
|
|
|
SPI1_NSS_DEASSERT;
|
|
GPIO_InitStruct.Pin = SPI1_NSS_PIN;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
HAL_GPIO_Init(SPI1_NSS_PORT, &GPIO_InitStruct);
|
|
|
|
//Configure downstream request pin and interrupt
|
|
GPIO_InitStruct.Pin = DOWNSTREAM_TX_OK_PIN;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_INPUT | GPIO_MODE_IT_FALLING;
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
|
HAL_GPIO_Init(DOWNSTREAM_TX_OK_PORT, &GPIO_InitStruct);
|
|
HAL_NVIC_SetPriority(EXTI3_IRQn, INT_PRIORITY_EXT3I, 0);
|
|
HAL_NVIC_EnableIRQ(EXTI3_IRQn);
|
|
|
|
//Prepare Tx DMA stream
|
|
hspi->hdmatx = &spiTxDmaHandle;
|
|
spiTxDmaHandle.Instance = DMA2_Stream3;
|
|
spiTxDmaHandle.Parent = hspi;
|
|
spiTxDmaHandle.Init.Channel = DMA_CHANNEL_3;
|
|
spiTxDmaHandle.Init.Direction = DMA_MEMORY_TO_PERIPH;
|
|
spiTxDmaHandle.Init.PeriphInc = DMA_PINC_DISABLE;
|
|
spiTxDmaHandle.Init.MemInc = DMA_MINC_ENABLE;
|
|
spiTxDmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
|
|
spiTxDmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
|
|
spiTxDmaHandle.Init.Mode = DMA_NORMAL;
|
|
spiTxDmaHandle.Init.Priority = DMA_PRIORITY_MEDIUM;
|
|
spiTxDmaHandle.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
|
|
HAL_DMA_Init(&spiTxDmaHandle);
|
|
HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, INT_PRIORITY_SPI_DMA, 0);
|
|
HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
|
|
|
|
//Prepare Rx DMA stream
|
|
hspi->hdmarx = &spiRxDmaHandle;
|
|
spiRxDmaHandle.Instance = DMA2_Stream2;
|
|
spiRxDmaHandle.Parent = hspi;
|
|
spiRxDmaHandle.Init.Channel = DMA_CHANNEL_3;
|
|
spiRxDmaHandle.Init.Direction = DMA_PERIPH_TO_MEMORY;
|
|
spiRxDmaHandle.Init.PeriphInc = DMA_PINC_DISABLE;
|
|
spiRxDmaHandle.Init.MemInc = DMA_MINC_ENABLE;
|
|
spiRxDmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
|
|
spiRxDmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
|
|
spiRxDmaHandle.Init.Mode = DMA_NORMAL;
|
|
spiRxDmaHandle.Init.Priority = DMA_PRIORITY_MEDIUM;
|
|
spiRxDmaHandle.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
|
|
HAL_DMA_Init(&spiRxDmaHandle);
|
|
HAL_NVIC_SetPriority(DMA2_Stream2_IRQn, INT_PRIORITY_SPI_DMA, 0);
|
|
HAL_NVIC_EnableIRQ(DMA2_Stream2_IRQn);
|
|
}
|
|
}
|
|
|
|
void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
|
|
{
|
|
|
|
if(hspi->Instance==SPI1)
|
|
{
|
|
/* Peripheral clock disable */
|
|
__HAL_RCC_SPI1_CLK_DISABLE();
|
|
__HAL_RCC_DMA2_CLK_DISABLE();
|
|
|
|
/**SPI1 GPIO Configuration
|
|
PA4 ------> SPI1_NSS
|
|
PA5 ------> SPI1_SCK
|
|
PA6 ------> SPI1_MISO
|
|
PA7 ------> SPI1_MOSI
|
|
*/
|
|
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
|
|
HAL_DMA_DeInit(&spiTxDmaHandle);
|
|
HAL_DMA_DeInit(&spiRxDmaHandle);
|
|
|
|
HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn);
|
|
HAL_NVIC_DisableIRQ(DMA2_Stream2_IRQn);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|