增加tac9535驱动

2026-07-30 19:51:54 +08:00
parent b1e8ffbf85
commit 61f831d948
6 changed files with 201 additions and 1 deletions
@@ -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