#include "i2c.h"
#include "stm32f4xx_i2c.h"
#include "../lib/utils.h"

Macros
#define	WAIT_WITH_TIMEOUT(x)
	Repeats until the expression returns false, or the timeout is reached. More...

Functions
void	i2c_Init (void)
	Initializes the I2C bus. More...

void	i2c_Reset (void)
	Performs a stop condition, to abort the current transaction. More...

void	i2c_WriteRegister (uint8_t slaveAddress, uint8_t registerAddress, uint8_t registerValue, bool *ok)
	Writes a 8-bit value to a register. More...

void	i2c_WriteMultiBytesRegister (uint8_t slaveAddress, uint8_t registerAddress, uint8_t const registerValue, uint8_t registerSize, bool ok)
	Writes several bytes to a register. More...

uint8_t	i2c_ReadRegister (uint8_t slaveAddress, uint8_t registerAddress, bool *ok)
	Reads a 8-bit value from a register. More...

void	i2c_ReadMultiBytesRegister (uint8_t slaveAddress, uint8_t registerAddress, uint8_t readData, uint8_t registerSize, bool ok)
	Reads a multi bytes value from a register. More...

Variables
const uint32_t	TIMEOUT = 1000
	Approximate maximum time for a I2C operation to complete (approx. 100us). More...

Macro Definition Documentation

◆ WAIT_WITH_TIMEOUT

#define WAIT_WITH_TIMEOUT ( x )

Value:

do \
{ \
    uint32_t duration = 0;\
    while((x)) \
    { \
        if(duration++ > TIMEOUT) \
        { \
            i2c_Reset(); \
            if(ok != NULL) \
                *ok = false; \
            return; \
        } \
    } \
} while(0)

Repeats until the expression returns false, or the timeout is reached.

Function Documentation

◆ i2c_Reset()

void i2c_Reset ( void )

Performs a stop condition, to abort the current transaction.

Variable Documentation

◆ TIMEOUT

const uint32_t TIMEOUT = 1000

Approximate maximum time for a I2C operation to complete (approx. 100us).

Macros