parent
f02430b131
commit
52f4a38cb3
@ -0,0 +1,3 @@
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ifndef MAKEFILE_INCLUDED
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include ../../../Makefile
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endif
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@ -0,0 +1,49 @@
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#ifndef ERGODOX_ERGODONE_CONFIG_H
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#define ERGODOX_ERGODONE_CONFIG_H
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#include "../config.h"
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#include "config_common.h"
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/* USB Device descriptor parameter */
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#define VENDOR_ID 0xFEED
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#define PRODUCT_ID 0x1307
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#define DEVICE_VER 0x0001
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#define MANUFACTURER ErgoDone
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#define PRODUCT ErgoDone
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#define DESCRIPTION QMK keyboard firmware for ErgoDone
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/* key matrix size */
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#define MATRIX_ROWS 6
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#define MATRIX_COLS 14
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/* fix space cadet rollover issue */
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#define DISABLE_SPACE_CADET_ROLLOVER
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/* Set 0 if debouncing isn't needed */
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#define DEBOUNCE 5
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#define PREVENT_STUCK_MODIFIERS
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#define USB_MAX_POWER_CONSUMPTION 500
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/*
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* Feature disable options
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* These options are also useful to firmware size reduction.
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*/
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/* disable debug print */
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// #define NO_DEBUG
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/* disable print */
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// #define NO_PRINT
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/* disable action features */
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//#define NO_ACTION_LAYER
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//#define NO_ACTION_TAPPING
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//#define NO_ACTION_ONESHOT
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//#define NO_ACTION_MACRO
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//#define NO_ACTION_FUNCTION
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//#define DEBUG_MATRIX_SCAN_RATE
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#endif
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@ -0,0 +1,5 @@
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#include "ergodone.h"
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void matrix_init_kb(void) {
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matrix_init_user();
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}
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@ -0,0 +1,54 @@
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#ifndef ERGODOX_ERGODONE_H
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#define ERGODOX_ERGODONE_H
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#include "quantum.h"
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#include <stdint.h>
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#include <stdbool.h>
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#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
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#define CPU_16MHz 0x00
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void init_ergodox(void);
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inline void ergodox_right_led_1_off(void) {}
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inline void ergodox_right_led_1_on(void) {}
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inline void ergodox_right_led_2_off(void) {}
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inline void ergodox_right_led_2_on(void) {}
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inline void ergodox_right_led_3_off(void) {}
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inline void ergodox_right_led_3_on(void) {}
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inline void ergodox_board_led_off(void) {}
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inline void ergodox_board_led_on(void) {}
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#define KEYMAP( \
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\
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/* left hand, spatial positions */ \
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k00,k01,k02,k03,k04,k05,k06, \
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k10,k11,k12,k13,k14,k15,k16, \
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k20,k21,k22,k23,k24,k25, \
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k30,k31,k32,k33,k34,k35,k36, \
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k40,k41,k42,k43,k44, \
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k55,k56, \
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k54, \
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k53,k52,k51, \
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\
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/* right hand, spatial positions */ \
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k07,k08,k09,k0A,k0B,k0C,k0D, \
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k17,k18,k19,k1A,k1B,k1C,k1D, \
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k28,k29,k2A,k2B,k2C,k2D, \
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k37,k38,k39,k3A,k3B,k3C,k3D, \
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k49,k4A,k4B,k4C,k4D, \
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k57,k58, \
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k59, \
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k5C,k5B,k5A ) \
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\
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/* matrix positions */ \
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{ \
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{ k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0A, k0B, k0C, k0D }, \
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{ k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1A, k1B, k1C, k1D }, \
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{ k20, k21, k22, k23, k24, k25, KC_NO, KC_NO, k28, k29, k2A, k2B, k2C, k2D }, \
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{ k30, k31, k32, k33, k34, k35, k36, k37, k38, k39, k3A, k3B, k3C, k3D }, \
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{ k40, k41, k42, k43, k44, KC_NO, KC_NO, KC_NO, KC_NO, k49, k4A, k4B, k4C, k4D }, \
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{ KC_NO, k51, k52, k53, k54, k55, k56, k57, k58, k59, k5A, k5B, k5C, KC_NO } \
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}
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#endif
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@ -0,0 +1,120 @@
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#include <stdbool.h>
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#include "action.h"
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#include "i2cmaster.h"
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#include "expander.h"
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#include "debug.h"
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static uint8_t expander_status = 0;
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static uint8_t expander_input = 0;
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void expander_config(void);
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uint8_t expander_write(uint8_t reg, uint8_t data);
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uint8_t expander_read(uint8_t reg, uint8_t *data);
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void expander_init(void)
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{
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i2c_init();
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expander_scan();
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}
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void expander_scan(void)
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{
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dprintf("expander status: %d ... ", expander_status);
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uint8_t ret = i2c_start(EXPANDER_ADDR | I2C_WRITE);
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if (ret == 0) {
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i2c_stop();
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if (expander_status == 0) {
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dprintf("attached\n");
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expander_status = 1;
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expander_config();
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clear_keyboard();
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}
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}
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else {
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if (expander_status == 1) {
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dprintf("detached\n");
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expander_status = 0;
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clear_keyboard();
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}
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}
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dprintf("%d\n", expander_status);
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}
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void expander_read_cols(void)
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{
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expander_read(EXPANDER_REG_GPIOA, &expander_input);
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}
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uint8_t expander_get_col(uint8_t col)
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{
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if (col > 4) {
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col++;
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}
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return expander_input & (1<<col) ? 1 : 0;
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}
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matrix_row_t expander_read_row(void)
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{
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expander_read_cols();
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/* make cols */
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matrix_row_t cols = 0;
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for (uint8_t col = 0; col < MATRIX_COLS; col++) {
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if (expander_get_col(col)) {
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cols |= (1UL << (MATRIX_COLS - 1 - col));
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}
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}
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return cols;
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}
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void expander_unselect_rows(void)
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{
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expander_write(EXPANDER_REG_IODIRB, 0xFF);
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}
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void expander_select_row(uint8_t row)
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{
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expander_write(EXPANDER_REG_IODIRB, ~(1<<(row+1)));
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}
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void expander_config(void)
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{
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expander_write(EXPANDER_REG_IPOLA, 0xFF);
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expander_write(EXPANDER_REG_GPPUA, 0xFF);
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expander_write(EXPANDER_REG_IODIRB, 0xFF);
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}
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uint8_t expander_write(uint8_t reg, uint8_t data)
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{
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if (expander_status == 0) {
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return 0;
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}
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uint8_t ret;
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ret = i2c_start(EXPANDER_ADDR | I2C_WRITE);
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if (ret) goto stop;
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ret = i2c_write(reg);
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if (ret) goto stop;
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ret = i2c_write(data);
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stop:
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i2c_stop();
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return ret;
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}
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uint8_t expander_read(uint8_t reg, uint8_t *data)
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{
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if (expander_status == 0) {
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return 0;
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}
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uint8_t ret;
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ret = i2c_start(EXPANDER_ADDR | I2C_WRITE);
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if (ret) goto stop;
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ret = i2c_write(reg);
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if (ret) goto stop;
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ret = i2c_rep_start(EXPANDER_ADDR | I2C_READ);
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if (ret) goto stop;
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*data = i2c_readNak();
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stop:
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i2c_stop();
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return ret;
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}
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#ifndef EXPANDER_H
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#define EXPANDER_H
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#include <stdint.h>
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#include "matrix.h"
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#define MCP23017
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#define MCP23017_A0 0
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#define MCP23017_A1 0
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#define MCP23017_A2 0
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#ifdef MCP23017
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#define EXPANDER_ADDR ((0x20|(MCP23017_A0<<0)|(MCP23017_A1<<1)|(MCP23017_A2<<2)) << 1)
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enum EXPANDER_REG_BANK0 {
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EXPANDER_REG_IODIRA = 0,
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EXPANDER_REG_IODIRB,
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EXPANDER_REG_IPOLA,
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EXPANDER_REG_IPOLB,
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EXPANDER_REG_GPINTENA,
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EXPANDER_REG_GPINTENB,
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EXPANDER_REG_DEFVALA,
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EXPANDER_REG_DEFVALB,
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EXPANDER_REG_INTCONA,
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EXPANDER_REG_INTCONB,
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EXPANDER_REG_IOCONA,
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EXPANDER_REG_IOCONB,
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EXPANDER_REG_GPPUA,
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EXPANDER_REG_GPPUB,
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EXPANDER_REG_INTFA,
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EXPANDER_REG_INTFB,
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EXPANDER_REG_INTCAPA,
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EXPANDER_REG_INTCAPB,
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EXPANDER_REG_GPIOA,
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EXPANDER_REG_GPIOB,
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EXPANDER_REG_OLATA,
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EXPANDER_REG_OLATB
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};
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#endif
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void expander_init(void);
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void expander_scan(void);
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void expander_read_cols(void);
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uint8_t expander_get_col(uint8_t col);
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matrix_row_t expander_read_row(void);
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void expander_unselect_rows(void);
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void expander_select_row(uint8_t row);
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#endif
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#ifndef _I2CMASTER_H
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#define _I2CMASTER_H 1
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/*************************************************************************
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* Title: C include file for the I2C master interface
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* (i2cmaster.S or twimaster.c)
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* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
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* File: $Id: i2cmaster.h,v 1.10 2005/03/06 22:39:57 Peter Exp $
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* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3
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* Target: any AVR device
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* Usage: see Doxygen manual
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**************************************************************************/
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#ifdef DOXYGEN
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/**
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@defgroup pfleury_ic2master I2C Master library
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@code #include <i2cmaster.h> @endcode
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@brief I2C (TWI) Master Software Library
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Basic routines for communicating with I2C slave devices. This single master
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implementation is limited to one bus master on the I2C bus.
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This I2c library is implemented as a compact assembler software implementation of the I2C protocol
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which runs on any AVR (i2cmaster.S) and as a TWI hardware interface for all AVR with built-in TWI hardware (twimaster.c).
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Since the API for these two implementations is exactly the same, an application can be linked either against the
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software I2C implementation or the hardware I2C implementation.
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Use 4.7k pull-up resistor on the SDA and SCL pin.
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Adapt the SCL and SDA port and pin definitions and eventually the delay routine in the module
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i2cmaster.S to your target when using the software I2C implementation !
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Adjust the CPU clock frequence F_CPU in twimaster.c or in the Makfile when using the TWI hardware implementaion.
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@note
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The module i2cmaster.S is based on the Atmel Application Note AVR300, corrected and adapted
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to GNU assembler and AVR-GCC C call interface.
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Replaced the incorrect quarter period delays found in AVR300 with
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half period delays.
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@author Peter Fleury pfleury@gmx.ch http://jump.to/fleury
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@par API Usage Example
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The following code shows typical usage of this library, see example test_i2cmaster.c
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@code
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#include <i2cmaster.h>
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#define Dev24C02 0xA2 // device address of EEPROM 24C02, see datasheet
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int main(void)
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{
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unsigned char ret;
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i2c_init(); // initialize I2C library
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// write 0x75 to EEPROM address 5 (Byte Write)
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i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode
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i2c_write(0x05); // write address = 5
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i2c_write(0x75); // write value 0x75 to EEPROM
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i2c_stop(); // set stop conditon = release bus
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// read previously written value back from EEPROM address 5
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i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode
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i2c_write(0x05); // write address = 5
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i2c_rep_start(Dev24C02+I2C_READ); // set device address and read mode
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ret = i2c_readNak(); // read one byte from EEPROM
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i2c_stop();
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for(;;);
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}
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@endcode
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*/
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#endif /* DOXYGEN */
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/**@{*/
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#if (__GNUC__ * 100 + __GNUC_MINOR__) < 304
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#error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !"
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#endif
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#include <avr/io.h>
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/** defines the data direction (reading from I2C device) in i2c_start(),i2c_rep_start() */
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#define I2C_READ 1
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/** defines the data direction (writing to I2C device) in i2c_start(),i2c_rep_start() */
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#define I2C_WRITE 0
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/**
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@brief initialize the I2C master interace. Need to be called only once
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@param void
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@return none
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*/
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extern void i2c_init(void);
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/**
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@brief Terminates the data transfer and releases the I2C bus
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@param void
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@return none
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*/
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extern void i2c_stop(void);
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/**
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@brief Issues a start condition and sends address and transfer direction
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@param addr address and transfer direction of I2C device
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@retval 0 device accessible
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@retval 1 failed to access device
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*/
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extern unsigned char i2c_start(unsigned char addr);
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/**
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@brief Issues a repeated start condition and sends address and transfer direction
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@param addr address and transfer direction of I2C device
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@retval 0 device accessible
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@retval 1 failed to access device
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*/
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extern unsigned char i2c_rep_start(unsigned char addr);
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/**
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@brief Issues a start condition and sends address and transfer direction
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If device is busy, use ack polling to wait until device ready
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@param addr address and transfer direction of I2C device
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@return none
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*/
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extern void i2c_start_wait(unsigned char addr);
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/**
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@brief Send one byte to I2C device
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@param data byte to be transfered
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@retval 0 write successful
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@retval 1 write failed
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*/
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extern unsigned char i2c_write(unsigned char data);
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/**
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@brief read one byte from the I2C device, request more data from device
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@return byte read from I2C device
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*/
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extern unsigned char i2c_readAck(void);
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/**
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@brief read one byte from the I2C device, read is followed by a stop condition
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@return byte read from I2C device
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*/
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extern unsigned char i2c_readNak(void);
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/**
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@brief read one byte from the I2C device
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Implemented as a macro, which calls either i2c_readAck or i2c_readNak
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@param ack 1 send ack, request more data from device<br>
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0 send nak, read is followed by a stop condition
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@return byte read from I2C device
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*/
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extern unsigned char i2c_read(unsigned char ack);
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#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
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/**@}*/
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#endif
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@ -0,0 +1,295 @@
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#include <stdint.h>
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#include <stdbool.h>
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#include <avr/io.h>
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#include "wait.h"
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#include "action_layer.h"
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#include "print.h"
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#include "debug.h"
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#include "util.h"
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#include "matrix.h"
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#include "ergodone.h"
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#include "expander.h"
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#ifdef DEBUG_MATRIX_SCAN_RATE
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#include "timer.h"
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#endif
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/*
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* This constant define not debouncing time in msecs, but amount of matrix
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* scan loops which should be made to get stable debounced results.
|
||||
*
|
||||
* On Ergodox matrix scan rate is relatively low, because of slow I2C.
|
||||
* Now it's only 317 scans/second, or about 3.15 msec/scan.
|
||||
* According to Cherry specs, debouncing time is 5 msec.
|
||||
*
|
||||
* And so, there is no sense to have DEBOUNCE higher than 2.
|
||||
*/
|
||||
|
||||
#ifndef DEBOUNCE
|
||||
# define DEBOUNCE 5
|
||||
#endif
|
||||
|
||||
/* matrix state(1:on, 0:off) */
|
||||
static matrix_row_t matrix[MATRIX_ROWS];
|
||||
|
||||
// Debouncing: store for each key the number of scans until it's eligible to
|
||||
// change. When scanning the matrix, ignore any changes in keys that have
|
||||
// already changed in the last DEBOUNCE scans.
|
||||
static uint8_t debounce_matrix[MATRIX_ROWS * MATRIX_COLS];
|
||||
|
||||
static matrix_row_t read_cols(uint8_t row);
|
||||
static void init_cols(void);
|
||||
static void unselect_rows(void);
|
||||
static void select_row(uint8_t row);
|
||||
|
||||
#ifdef DEBUG_MATRIX_SCAN_RATE
|
||||
uint32_t matrix_timer;
|
||||
uint32_t matrix_scan_count;
|
||||
#endif
|
||||
|
||||
|
||||
__attribute__ ((weak))
|
||||
void matrix_init_user(void) {}
|
||||
|
||||
__attribute__ ((weak))
|
||||
void matrix_scan_user(void) {}
|
||||
|
||||
__attribute__ ((weak))
|
||||
void matrix_init_kb(void) {
|
||||
matrix_init_user();
|
||||
}
|
||||
|
||||
__attribute__ ((weak))
|
||||
void matrix_scan_kb(void) {
|
||||
matrix_scan_user();
|
||||
}
|
||||
|
||||
inline
|
||||
uint8_t matrix_rows(void)
|
||||
{
|
||||
return MATRIX_ROWS;
|
||||
}
|
||||
|
||||
inline
|
||||
uint8_t matrix_cols(void)
|
||||
{
|
||||
return MATRIX_COLS;
|
||||
}
|
||||
|
||||
void matrix_init(void)
|
||||
{
|
||||
// disable JTAG
|
||||
MCUCR = (1<<JTD);
|
||||
MCUCR = (1<<JTD);
|
||||
|
||||
unselect_rows();
|
||||
init_cols();
|
||||
|
||||
// initialize matrix state: all keys off
|
||||
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
||||
matrix[i] = 0;
|
||||
for (uint8_t j=0; j < MATRIX_COLS; ++j) {
|
||||
debounce_matrix[i * MATRIX_COLS + j] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef DEBUG_MATRIX_SCAN_RATE
|
||||
matrix_timer = timer_read32();
|
||||
matrix_scan_count = 0;
|
||||
#endif
|
||||
|
||||
matrix_init_quantum();
|
||||
|
||||
}
|
||||
|
||||
void matrix_power_up(void) {
|
||||
unselect_rows();
|
||||
init_cols();
|
||||
|
||||
// initialize matrix state: all keys off
|
||||
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
||||
matrix[i] = 0;
|
||||
}
|
||||
|
||||
#ifdef DEBUG_MATRIX_SCAN_RATE
|
||||
matrix_timer = timer_read32();
|
||||
matrix_scan_count = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
// Returns a matrix_row_t whose bits are set if the corresponding key should be
|
||||
// eligible to change in this scan.
|
||||
matrix_row_t debounce_mask(uint8_t row) {
|
||||
matrix_row_t result = 0;
|
||||
for (uint8_t j=0; j < MATRIX_COLS; ++j) {
|
||||
if (debounce_matrix[row * MATRIX_COLS + j]) {
|
||||
--debounce_matrix[row * MATRIX_COLS + j];
|
||||
} else {
|
||||
result |= (1 << j);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
// Report changed keys in the given row. Resets the debounce countdowns
|
||||
// corresponding to each set bit in 'change' to DEBOUNCE.
|
||||
void debounce_report(matrix_row_t change, uint8_t row) {
|
||||
for (uint8_t i = 0; i < MATRIX_COLS; ++i) {
|
||||
if (change & (1 << i)) {
|
||||
debounce_matrix[row * MATRIX_COLS + i] = DEBOUNCE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t matrix_scan(void)
|
||||
{
|
||||
expander_scan();
|
||||
|
||||
#ifdef DEBUG_MATRIX_SCAN_RATE
|
||||
matrix_scan_count++;
|
||||
|
||||
uint32_t timer_now = timer_read32();
|
||||
if (TIMER_DIFF_32(timer_now, matrix_timer)>1000) {
|
||||
print("matrix scan frequency: ");
|
||||
pdec(matrix_scan_count);
|
||||
print("\n");
|
||||
matrix_print();
|
||||
|
||||
matrix_timer = timer_now;
|
||||
matrix_scan_count = 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
||||
select_row(i);
|
||||
wait_us(30); // without this wait read unstable value.
|
||||
matrix_row_t mask = debounce_mask(i);
|
||||
matrix_row_t cols = (read_cols(i) & mask) | (matrix[i] & ~mask);
|
||||
debounce_report(cols ^ matrix[i], i);
|
||||
matrix[i] = cols;
|
||||
|
||||
unselect_rows();
|
||||
}
|
||||
|
||||
matrix_scan_quantum();
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
inline
|
||||
bool matrix_is_on(uint8_t row, uint8_t col)
|
||||
{
|
||||
return (matrix[row] & ((matrix_row_t)1<<col));
|
||||
}
|
||||
|
||||
inline
|
||||
matrix_row_t matrix_get_row(uint8_t row)
|
||||
{
|
||||
return matrix[row];
|
||||
}
|
||||
|
||||
void matrix_print(void)
|
||||
{
|
||||
print("\nr/c 0123456789ABCDEF\n");
|
||||
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
|
||||
phex(row); print(": ");
|
||||
pbin_reverse16(matrix_get_row(row));
|
||||
print("\n");
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t matrix_key_count(void)
|
||||
{
|
||||
uint8_t count = 0;
|
||||
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
||||
count += bitpop16(matrix[i]);
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
/* Column pin configuration
|
||||
*
|
||||
* Pro Micro: 6 5 4 3 2 1 0
|
||||
* PD3 PD2 PD4 PC6 PD7 PE6 PB4
|
||||
*
|
||||
* Expander: 13 12 11 10 9 8 7
|
||||
*/
|
||||
static void init_cols(void)
|
||||
{
|
||||
// Pro Micro
|
||||
DDRE &= ~(1<<PE6);
|
||||
PORTE |= (1<<PE6);
|
||||
DDRD &= ~(1<<PD2 | 1<<PD3 | 1<<PD4 | 1<<PD7);
|
||||
PORTD |= (1<<PD2 | 1<<PD3 | 1<<PD4 | 1<<PD7);
|
||||
DDRC &= ~(1<<PC6);
|
||||
PORTC |= (1<<PC6);
|
||||
DDRB &= ~(1<<PB4);
|
||||
PORTB |= (1<<PB4);
|
||||
|
||||
// MCP23017
|
||||
expander_init();
|
||||
}
|
||||
|
||||
static matrix_row_t read_cols(uint8_t row)
|
||||
{
|
||||
return expander_read_row() |
|
||||
(PIND&(1<<PD3) ? 0 : (1<<6)) |
|
||||
(PIND&(1<<PD2) ? 0 : (1<<5)) |
|
||||
(PIND&(1<<PD4) ? 0 : (1<<4)) |
|
||||
(PINC&(1<<PC6) ? 0 : (1<<3)) |
|
||||
(PIND&(1<<PD7) ? 0 : (1<<2)) |
|
||||
(PINE&(1<<PE6) ? 0 : (1<<1)) |
|
||||
(PINB&(1<<PB4) ? 0 : (1<<0)) ;
|
||||
}
|
||||
|
||||
/* Row pin configuration
|
||||
*
|
||||
* Pro Micro: 0 1 2 3 4 5
|
||||
* F4 F5 F6 F7 B1 B2
|
||||
*
|
||||
* Expander: 0 1 2 3 4 5
|
||||
*/
|
||||
static void unselect_rows(void)
|
||||
{
|
||||
// Pro Micro
|
||||
DDRF &= ~(1<<PF4 | 1<<PF5 | 1<<PF6 | 1<<PF7);
|
||||
PORTF &= ~(1<<PF4 | 1<<PF5 | 1<<PF6 | 1<<PF7);
|
||||
DDRB &= ~(1<<PB1 | 1<<PB2);
|
||||
PORTB &= ~(1<<PB1 | 1<<PB2);
|
||||
|
||||
// Expander
|
||||
expander_unselect_rows();
|
||||
}
|
||||
|
||||
static void select_row(uint8_t row)
|
||||
{
|
||||
// Pro Micro
|
||||
switch (row) {
|
||||
case 0:
|
||||
DDRF |= (1<<PF4);
|
||||
PORTF &= ~(1<<PF4);
|
||||
break;
|
||||
case 1:
|
||||
DDRF |= (1<<PF5);
|
||||
PORTF &= ~(1<<PF5);
|
||||
break;
|
||||
case 2:
|
||||
DDRF |= (1<<PF6);
|
||||
PORTF &= ~(1<<PF6);
|
||||
break;
|
||||
case 3:
|
||||
DDRF |= (1<<PF7);
|
||||
PORTF &= ~(1<<PF7);
|
||||
break;
|
||||
case 4:
|
||||
DDRB |= (1<<PB1);
|
||||
PORTB &= ~(1<<PB1);
|
||||
break;
|
||||
case 5:
|
||||
DDRB |= (1<<PB2);
|
||||
PORTB &= ~(1<<PB2);
|
||||
break;
|
||||
}
|
||||
|
||||
expander_select_row(row);
|
||||
}
|
||||
|
@ -0,0 +1,91 @@
|
||||
#----------------------------------------------------------------------------
|
||||
# On command line:
|
||||
#
|
||||
# make = Make software.
|
||||
#
|
||||
# make clean = Clean out built project files.
|
||||
#
|
||||
# That's pretty much all you need. To compile, always go make clean,
|
||||
# followed by make.
|
||||
#
|
||||
# For advanced users only:
|
||||
# make teensy = Download the hex file to the device, using teensy_loader_cli.
|
||||
# (must have teensy_loader_cli installed).
|
||||
#
|
||||
#----------------------------------------------------------------------------
|
||||
|
||||
# # project specific files
|
||||
SRC = \
|
||||
twimaster.c \
|
||||
matrix.c \
|
||||
expander.c \
|
||||
|
||||
# MCU name
|
||||
MCU = atmega32u4
|
||||
|
||||
# Processor frequency.
|
||||
# This will define a symbol, F_CPU, in all source code files equal to the
|
||||
# processor frequency in Hz. You can then use this symbol in your source code to
|
||||
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
|
||||
# automatically to create a 32-bit value in your source code.
|
||||
#
|
||||
# This will be an integer division of F_USB below, as it is sourced by
|
||||
# F_USB after it has run through any CPU prescalers. Note that this value
|
||||
# does not *change* the processor frequency - it should merely be updated to
|
||||
# reflect the processor speed set externally so that the code can use accurate
|
||||
# software delays.
|
||||
F_CPU = 16000000
|
||||
|
||||
#
|
||||
# LUFA specific
|
||||
#
|
||||
# Target architecture (see library "Board Types" documentation).
|
||||
ARCH = AVR8
|
||||
|
||||
# Input clock frequency.
|
||||
# This will define a symbol, F_USB, in all source code files equal to the
|
||||
# input clock frequency (before any prescaling is performed) in Hz. This value may
|
||||
# differ from F_CPU if prescaling is used on the latter, and is required as the
|
||||
# raw input clock is fed directly to the PLL sections of the AVR for high speed
|
||||
# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
|
||||
# at the end, this will be done automatically to create a 32-bit value in your
|
||||
# source code.
|
||||
#
|
||||
# If no clock division is performed on the input clock inside the AVR (via the
|
||||
# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
|
||||
F_USB = $(F_CPU)
|
||||
|
||||
# Interrupt driven control endpoint task(+60)
|
||||
OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
|
||||
|
||||
|
||||
# Boot Section Size in *bytes*
|
||||
# Teensy halfKay 512
|
||||
# Teensy++ halfKay 1024
|
||||
# Atmel DFU loader 4096
|
||||
# LUFA bootloader 4096
|
||||
# USBaspLoader 2048
|
||||
OPT_DEFS += -DBOOTLOADER_SIZE=4096
|
||||
|
||||
# Build Options
|
||||
# comment out to disable the options.
|
||||
#
|
||||
BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
|
||||
MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
|
||||
EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
|
||||
CONSOLE_ENABLE = no # Console for debug(+400)
|
||||
COMMAND_ENABLE = no # Commands for debug and configuration
|
||||
SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
|
||||
NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
|
||||
USB_6KRO_ENABLE = no # USB 6key Rollover
|
||||
BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
|
||||
KEYMAP_IN_EEPROM_ENABLE = no # External keymap in eeprom
|
||||
KEYMAP_SECTION_ENABLE = no # Fixed address keymap for keymap editor
|
||||
SOFTPWM_LED_ENABLE = no # Enable SoftPWM to drive backlight
|
||||
FADING_LED_ENABLE = no # Enable fading backlight
|
||||
BREATHING_LED_ENABLE = no # Enable breathing backlight
|
||||
LEDMAP_ENABLE = no # Enable LED mapping
|
||||
LEDMAP_IN_EEPROM_ENABLE = no # Read LED mapping from eeprom
|
||||
ONEHAND_ENABLE = no # Disable Onehand
|
||||
RGBLIGHT_ENABLE = no
|
||||
MIDI_ENABLE = no
|
@ -0,0 +1,208 @@
|
||||
/*************************************************************************
|
||||
* Title: I2C master library using hardware TWI interface
|
||||
* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
|
||||
* File: $Id: twimaster.c,v 1.3 2005/07/02 11:14:21 Peter Exp $
|
||||
* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3
|
||||
* Target: any AVR device with hardware TWI
|
||||
* Usage: API compatible with I2C Software Library i2cmaster.h
|
||||
**************************************************************************/
|
||||
#include <inttypes.h>
|
||||
#include <compat/twi.h>
|
||||
|
||||
#include <i2cmaster.h>
|
||||
|
||||
|
||||
/* define CPU frequency in Mhz here if not defined in Makefile */
|
||||
#ifndef F_CPU
|
||||
#define F_CPU 16000000UL
|
||||
#endif
|
||||
|
||||
/* I2C clock in Hz */
|
||||
#define SCL_CLOCK 400000L
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Initialization of the I2C bus interface. Need to be called only once
|
||||
*************************************************************************/
|
||||
void i2c_init(void)
|
||||
{
|
||||
/* initialize TWI clock
|
||||
* minimal values in Bit Rate Register (TWBR) and minimal Prescaler
|
||||
* bits in the TWI Status Register should give us maximal possible
|
||||
* I2C bus speed - about 444 kHz
|
||||
*
|
||||
* for more details, see 20.5.2 in ATmega16/32 secification
|
||||
*/
|
||||
|
||||
TWSR = 0; /* no prescaler */
|
||||
TWBR = 10; /* must be >= 10 for stable operation */
|
||||
|
||||
}/* i2c_init */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Issues a start condition and sends address and transfer direction.
|
||||
return 0 = device accessible, 1= failed to access device
|
||||
*************************************************************************/
|
||||
unsigned char i2c_start(unsigned char address)
|
||||
{
|
||||
uint8_t twst;
|
||||
|
||||
// send START condition
|
||||
TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
|
||||
|
||||
// wait until transmission completed
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
// check value of TWI Status Register. Mask prescaler bits.
|
||||
twst = TW_STATUS & 0xF8;
|
||||
if ( (twst != TW_START) && (twst != TW_REP_START)) return 1;
|
||||
|
||||
// send device address
|
||||
TWDR = address;
|
||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
||||
|
||||
// wail until transmission completed and ACK/NACK has been received
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
// check value of TWI Status Register. Mask prescaler bits.
|
||||
twst = TW_STATUS & 0xF8;
|
||||
if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1;
|
||||
|
||||
return 0;
|
||||
|
||||
}/* i2c_start */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Issues a start condition and sends address and transfer direction.
|
||||
If device is busy, use ack polling to wait until device is ready
|
||||
|
||||
Input: address and transfer direction of I2C device
|
||||
*************************************************************************/
|
||||
void i2c_start_wait(unsigned char address)
|
||||
{
|
||||
uint8_t twst;
|
||||
|
||||
|
||||
while ( 1 )
|
||||
{
|
||||
// send START condition
|
||||
TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
|
||||
|
||||
// wait until transmission completed
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
// check value of TWI Status Register. Mask prescaler bits.
|
||||
twst = TW_STATUS & 0xF8;
|
||||
if ( (twst != TW_START) && (twst != TW_REP_START)) continue;
|
||||
|
||||
// send device address
|
||||
TWDR = address;
|
||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
||||
|
||||
// wail until transmission completed
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
// check value of TWI Status Register. Mask prescaler bits.
|
||||
twst = TW_STATUS & 0xF8;
|
||||
if ( (twst == TW_MT_SLA_NACK )||(twst ==TW_MR_DATA_NACK) )
|
||||
{
|
||||
/* device busy, send stop condition to terminate write operation */
|
||||
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
|
||||
|
||||
// wait until stop condition is executed and bus released
|
||||
while(TWCR & (1<<TWSTO));
|
||||
|
||||
continue;
|
||||
}
|
||||
//if( twst != TW_MT_SLA_ACK) return 1;
|
||||
break;
|
||||
}
|
||||
|
||||
}/* i2c_start_wait */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Issues a repeated start condition and sends address and transfer direction
|
||||
|
||||
Input: address and transfer direction of I2C device
|
||||
|
||||
Return: 0 device accessible
|
||||
1 failed to access device
|
||||
*************************************************************************/
|
||||
unsigned char i2c_rep_start(unsigned char address)
|
||||
{
|
||||
return i2c_start( address );
|
||||
|
||||
}/* i2c_rep_start */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Terminates the data transfer and releases the I2C bus
|
||||
*************************************************************************/
|
||||
void i2c_stop(void)
|
||||
{
|
||||
/* send stop condition */
|
||||
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
|
||||
|
||||
// wait until stop condition is executed and bus released
|
||||
while(TWCR & (1<<TWSTO));
|
||||
|
||||
}/* i2c_stop */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Send one byte to I2C device
|
||||
|
||||
Input: byte to be transfered
|
||||
Return: 0 write successful
|
||||
1 write failed
|
||||
*************************************************************************/
|
||||
unsigned char i2c_write( unsigned char data )
|
||||
{
|
||||
uint8_t twst;
|
||||
|
||||
// send data to the previously addressed device
|
||||
TWDR = data;
|
||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
||||
|
||||
// wait until transmission completed
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
// check value of TWI Status Register. Mask prescaler bits
|
||||
twst = TW_STATUS & 0xF8;
|
||||
if( twst != TW_MT_DATA_ACK) return 1;
|
||||
return 0;
|
||||
|
||||
}/* i2c_write */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Read one byte from the I2C device, request more data from device
|
||||
|
||||
Return: byte read from I2C device
|
||||
*************************************************************************/
|
||||
unsigned char i2c_readAck(void)
|
||||
{
|
||||
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
return TWDR;
|
||||
|
||||
}/* i2c_readAck */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Read one byte from the I2C device, read is followed by a stop condition
|
||||
|
||||
Return: byte read from I2C device
|
||||
*************************************************************************/
|
||||
unsigned char i2c_readNak(void)
|
||||
{
|
||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
||||
while(!(TWCR & (1<<TWINT)));
|
||||
|
||||
return TWDR;
|
||||
|
||||
}/* i2c_readNak */
|
Loading…
Reference in new issue