api/fc/imu__i2c_8h_source.html

#ifndef IMU_I2C_H

#define IMU_I2C_H


#include "main.h"

#include "sensor_bus.h"

#include "cmsis_os2.h"


void    imu_i2c_bus_init(I2C_HandleTypeDef *hi2c);

int     imu_i2c_lock(void);

void    imu_i2c_unlock(void);

I2C_HandleTypeDef *imu_i2c_handle(void);

void    imu_i2c_make_bus(sensor_bus_t *bus, I2C_HandleTypeDef *hi2c, uint8_t addr7);

int32_t imu_i2c_read_dma(uint8_t reg, uint8_t *buf, uint16_t len, uint32_t timeout_ms);

void    imu_i2c_rx_cplt_isr(I2C_HandleTypeDef *hi2c);

void    imu_i2c_error_isr(I2C_HandleTypeDef *hi2c);


#endif /* IMU_I2C_H */

imu_i2c_make_bus
void imu_i2c_make_bus(sensor_bus_t *bus, I2C_HandleTypeDef *hi2c, uint8_t addr7)
Definition imu_i2c.c:66

imu_i2c_error_isr
void imu_i2c_error_isr(I2C_HandleTypeDef *hi2c)
Definition imu_i2c.c:96

imu_i2c_rx_cplt_isr
void imu_i2c_rx_cplt_isr(I2C_HandleTypeDef *hi2c)
To be called from HAL_I2C_MemRxCpltCallback / HAL_I2C_ErrorCallback.
Definition imu_i2c.c:91

imu_i2c_read_dma
int32_t imu_i2c_read_dma(uint8_t reg, uint8_t *buf, uint16_t len, uint32_t timeout_ms)
Starts the DMA read and blocks the calling task until completion.
Definition imu_i2c.c:76

imu_i2c_lock
int imu_i2c_lock(void)
0 = taken (or no kernel yet), -1 = timeout
Definition imu_i2c.c:28

imu_i2c_unlock
void imu_i2c_unlock(void)
Definition imu_i2c.c:34

imu_i2c_bus_init
void imu_i2c_bus_init(I2C_HandleTypeDef *hi2c)
Creates the bus lock: call once before starting the tasks that use the bus.
Definition imu_i2c.c:21

imu_i2c_handle
I2C_HandleTypeDef * imu_i2c_handle(void)
Definition imu_i2c.c:39

sensor_bus.h
Platform-independent bus interface.

sensor_bus_t
Definition sensor_bus.h:19