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This commit is contained in:
yelvlab
2026-02-18 17:44:38 +08:00
parent d324d5f92a
commit 7419dec1b5
14 changed files with 1076 additions and 281 deletions
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27
Inc/i2c.h
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@@ -18,7 +18,7 @@
/******************************************************************************/
#define I2C_SPEED 100000U /* 100kHz */
#define I2C_SPEED 20000U /* 20kHz */
#define I2C_TIME_OUT 5000U /* 5000 loops timeout */
#define I2C_MAX_RETRY 3U /* Maximum retry attempts */
#define I2C_DELAY_10US 10U /* Delay in microseconds for bus reset */
@@ -107,15 +107,29 @@ i2c_result_t i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data
*/
i2c_result_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data);
/* Generic read/write functions with configurable length */
/*!
\brief read 16-bit data from I2C device
\param[in] slave_addr: 7-bit slave address
\brief write data to I2C device with configurable length
\param[in] slave_addr: slave device address (7-bit)
\param[in] reg_addr: register address
\param[out] data: pointer to 2-byte data buffer
\retval i2c_result_t
\param[in] data: pointer to data buffer
\param[in] length: number of bytes to write (1-255)
\param[out] none
\retval i2c_result_t: operation result
*/
i2c_result_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data);
i2c_result_t i2c_write(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data, uint8_t length);
/*!
\brief read data from I2C device with configurable length
\param[in] slave_addr: slave device address (7-bit)
\param[in] reg_addr: register address
\param[out] data: pointer to data buffer
\param[in] length: number of bytes to read (1-255)
\retval i2c_result_t: operation result
*/
i2c_result_t i2c_read(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data, uint8_t length);
#ifdef DEBUG_VERBOSE
/*!
\brief get status string for debugging
\param[in] status: i2c_result_t value
@@ -123,5 +137,6 @@ i2c_result_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data
\retval const char* status string
*/
const char* i2c_get_status_string(i2c_result_t status);
#endif
#endif //I2C_H