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增加tac9535驱动

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This commit is contained in:
kevin
2026-07-30 19:51:54 +08:00
parent b1e8ffbf85
commit 61f831d948
6 changed files with 201 additions and 1 deletions
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MSOS_ESP/main/CMakeLists.txt
+1 -1
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@@ -1,3 +1,3 @@
idf_component_register(SRCS "hello_world_main.c" "iic.c" "oled.c" "state.c"
idf_component_register(SRCS "hello_world_main.c" "iic.c" "oled.c" "state.c" "tca9535.c"
PRIV_REQUIRES spi_flash esp_driver_i2c log
INCLUDE_DIRS ".")
MSOS_ESP/main/hello_world_main.c
+2
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@@ -16,6 +16,7 @@
#include "iic.h"
#include "oled.h"
#include "state.h"
#include "tca9535.h"
void app_main(void)
{
@@ -48,6 +49,7 @@ void app_main(void)
state_init();
iic_init();
tca9535_init();
oled_init();
while(1){
MSOS_ESP/main/iic.c
+12
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@@ -53,6 +53,18 @@ esp_err_t iic_send_bytes(unsigned char addr, unsigned char *txd, unsigned int le
return i2c_master_transmit(s_iic_dev, (const uint8_t *)txd, (size_t)len, IIC_TIMEOUT_MS);
}
esp_err_t iic_read_reg(unsigned char addr, unsigned char reg, unsigned char *rxd, unsigned int len)
{
if (rxd == NULL || len == 0 || s_iic_dev == NULL) {
return ESP_ERR_INVALID_STATE;
}
esp_err_t ret = i2c_master_device_change_address(s_iic_dev, (uint16_t)addr, IIC_TIMEOUT_MS);
if (ret != ESP_OK) {
return ret;
}
return i2c_master_transmit_receive(s_iic_dev, &reg, 1, rxd, len, IIC_TIMEOUT_MS);
}
unsigned char iic_read_byte(unsigned char addr)
{
uint8_t byte = 0;
MSOS_ESP/main/iic.h
+1
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@@ -12,6 +12,7 @@
esp_err_t iic_init(void);
void iic_scan(void);
esp_err_t iic_send_bytes(unsigned char addr, unsigned char *txd, unsigned int len);
esp_err_t iic_read_reg(unsigned char addr, unsigned char reg, unsigned char *rxd, unsigned int len);
unsigned char iic_read_byte(unsigned char addr);
#endif
MSOS_ESP/main/tca9535.c
+148
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@@ -0,0 +1,148 @@
#include "tca9535.h"
#include "iic.h"
#include "esp_log.h"
static const char *TAG = "TCA9535";
esp_err_t tca9535_read_reg(uint8_t reg, uint8_t *val)
{
if (val == NULL) {
return ESP_ERR_INVALID_ARG;
}
return iic_read_reg(TCA9535_ADDRESS, reg, val, 1);
}
esp_err_t tca9535_write_reg(uint8_t reg, uint8_t val)
{
unsigned char buf[2] = {reg, val};
return iic_send_bytes(TCA9535_ADDRESS, buf, 2);
}
esp_err_t tca9535_set_dir(uint16_t dir)
{
esp_err_t ret = tca9535_write_reg(TCA9535_REG_CONFIG0, (uint8_t)(dir & 0xFF));
if (ret != ESP_OK) {
return ret;
}
return tca9535_write_reg(TCA9535_REG_CONFIG1, (uint8_t)(dir >> 8));
}
esp_err_t tca9535_set_output(uint16_t val)
{
esp_err_t ret = tca9535_write_reg(TCA9535_REG_OUTPUT0, (uint8_t)(val & 0xFF));
if (ret != ESP_OK) {
return ret;
}
return tca9535_write_reg(TCA9535_REG_OUTPUT1, (uint8_t)(val >> 8));
}
esp_err_t tca9535_get_output(uint16_t *val)
{
if (val == NULL) {
return ESP_ERR_INVALID_ARG;
}
uint8_t p0 = 0, p1 = 0;
esp_err_t ret = tca9535_read_reg(TCA9535_REG_OUTPUT0, &p0);
if (ret != ESP_OK) {
return ret;
}
ret = tca9535_read_reg(TCA9535_REG_OUTPUT1, &p1);
if (ret != ESP_OK) {
return ret;
}
*val = (uint16_t)p0 | ((uint16_t)p1 << 8);
return ESP_OK;
}
esp_err_t tca9535_get_input(uint16_t *val)
{
if (val == NULL) {
return ESP_ERR_INVALID_ARG;
}
uint8_t p0 = 0, p1 = 0;
esp_err_t ret = tca9535_read_reg(TCA9535_REG_INPUT0, &p0);
if (ret != ESP_OK) {
return ret;
}
ret = tca9535_read_reg(TCA9535_REG_INPUT1, &p1);
if (ret != ESP_OK) {
return ret;
}
*val = (uint16_t)p0 | ((uint16_t)p1 << 8);
return ESP_OK;
}
esp_err_t tca9535_pin_mode(uint8_t pin, uint8_t mode)
{
if (pin >= TCA9535_PIN_COUNT) {
return ESP_ERR_INVALID_ARG;
}
uint8_t reg = (pin < 8) ? TCA9535_REG_CONFIG0 : TCA9535_REG_CONFIG1;
uint8_t bit = pin & 0x07;
uint8_t cur = 0;
esp_err_t ret = tca9535_read_reg(reg, &cur);
if (ret != ESP_OK) {
return ret;
}
if (mode == TCA9535_INPUT) {
cur |= (1 << bit);
} else {
cur &= ~(1 << bit);
}
return tca9535_write_reg(reg, cur);
}
esp_err_t tca9535_digital_write(uint8_t pin, uint8_t val)
{
if (pin >= TCA9535_PIN_COUNT) {
return ESP_ERR_INVALID_ARG;
}
uint8_t reg = (pin < 8) ? TCA9535_REG_OUTPUT0 : TCA9535_REG_OUTPUT1;
uint8_t bit = pin & 0x07;
uint8_t cur = 0;
esp_err_t ret = tca9535_read_reg(reg, &cur);
if (ret != ESP_OK) {
return ret;
}
if (val) {
cur |= (1 << bit);
} else {
cur &= ~(1 << bit);
}
return tca9535_write_reg(reg, cur);
}
esp_err_t tca9535_digital_read(uint8_t pin, uint8_t *val)
{
if (pin >= TCA9535_PIN_COUNT || val == NULL) {
return ESP_ERR_INVALID_ARG;
}
uint8_t reg = (pin < 8) ? TCA9535_REG_INPUT0 : TCA9535_REG_INPUT1;
uint8_t bit = pin & 0x07;
uint8_t cur = 0;
esp_err_t ret = tca9535_read_reg(reg, &cur);
if (ret != ESP_OK) {
return ret;
}
*val = (cur >> bit) & 0x01;
return ESP_OK;
}
esp_err_t tca9535_init(void)
{
esp_err_t ret = tca9535_write_reg(TCA9535_REG_POLARITY0, 0x00);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "TCA9535初始化失败");
return ret;
}
tca9535_write_reg(TCA9535_REG_POLARITY1, 0x00);
tca9535_write_reg(TCA9535_REG_OUTPUT0, 0x00);
tca9535_write_reg(TCA9535_REG_OUTPUT1, 0x00);
ret = tca9535_set_dir(0xFFFF);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "TCA9535初始化失败");
return ret;
}
ESP_LOGI(TAG, "TCA9535初始化成功, 地址0x%02X", TCA9535_ADDRESS);
return ESP_OK;
}
MSOS_ESP/main/tca9535.h
+37
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@@ -0,0 +1,37 @@
#ifndef TCA9535_H_
#define TCA9535_H_
#include "esp_err.h"
#include <stdint.h>
#define TCA9535_ADDRESS 0x20
#define TCA9535_REG_INPUT0 0x00
#define TCA9535_REG_INPUT1 0x01
#define TCA9535_REG_OUTPUT0 0x02
#define TCA9535_REG_OUTPUT1 0x03
#define TCA9535_REG_POLARITY0 0x04
#define TCA9535_REG_POLARITY1 0x05
#define TCA9535_REG_CONFIG0 0x06
#define TCA9535_REG_CONFIG1 0x07
#define TCA9535_INPUT 1
#define TCA9535_OUTPUT 0
#define TCA9535_PIN_COUNT 16
esp_err_t tca9535_init(void);
esp_err_t tca9535_read_reg(uint8_t reg, uint8_t *val);
esp_err_t tca9535_write_reg(uint8_t reg, uint8_t val);
esp_err_t tca9535_set_dir(uint16_t dir);
esp_err_t tca9535_set_output(uint16_t val);
esp_err_t tca9535_get_output(uint16_t *val);
esp_err_t tca9535_get_input(uint16_t *val);
esp_err_t tca9535_pin_mode(uint8_t pin, uint8_t mode);
esp_err_t tca9535_digital_write(uint8_t pin, uint8_t val);
esp_err_t tca9535_digital_read(uint8_t pin, uint8_t *val);
#endif