fw_i2c.c File Reference

#include "fw_i2c.h"

Go to the source code of this file.

Functions
uint8_t	I2C_Write (uint8_t devAddr, uint8_t memAddr, uint8_t *dat, uint16_t size)
uint8_t	I2C_Read (uint8_t devAddr, uint8_t memAddr, uint8_t *buf, uint16_t size)
uint8_t	I2C_Write16BitAddr (uint8_t devAddr, uint16_t memAddr, uint8_t *dat, uint16_t size)
uint8_t	I2C_Read16BitAddr (uint8_t devAddr, uint16_t memAddr, uint8_t *buf, uint16_t size)

Function Documentation

I2C_Read()

uint8_t I2C_Read	(	uint8_t	devAddr,
		uint8_t	memAddr,
		uint8_t *	buf,
		uint16_t	size
	)

Definition at line 36 of file fw_i2c.c.

{
    SFRX_ON();
    I2C_MasterStart();
    I2C_MasterSendData(devAddr & 0xFE);
    I2C_MasterRxAck();
    I2C_MasterSendData(memAddr);
    I2C_MasterRxAck();
    I2C_MasterStart();
    I2C_MasterSendData(devAddr | 0x01);
    I2C_MasterRxAck();
    while(size--)
    {
        I2C_SendMasterCmd(I2C_MasterCmd_Recv);
        *buf++ = I2CRXD;
        if (size == 0)
        {
            I2C_MasterNAck();
        }
        else
        {
            I2C_MasterAck();
        }
    }
    I2C_MasterStop();
    SFRX_OFF();
    return HAL_OK;
}

I2C_Read16BitAddr()

uint8_t I2C_Read16BitAddr	(	uint8_t	devAddr,
		uint16_t	memAddr,
		uint8_t *	buf,
		uint16_t	size
	)

Definition at line 85 of file fw_i2c.c.

{
    SFRX_ON();
    I2C_MasterStart();
    I2C_MasterSendData(devAddr & 0xFE);
    I2C_MasterRxAck();
    I2C_MasterSendData(memAddr >> 8);
    I2C_MasterRxAck();
    I2C_MasterSendData(memAddr & 0xFF);
    I2C_MasterRxAck();
    I2C_MasterStart();
    I2C_MasterSendData(devAddr | 0x01);
    I2C_MasterRxAck();
    while(size--)
    {
        I2C_SendMasterCmd(I2C_MasterCmd_Recv);
        *buf++ = I2CRXD;
        if (size == 0)
        {
            I2C_MasterNAck();
        }
        else
        {
            I2C_MasterAck();
        }
    }
    I2C_MasterStop();
    SFRX_OFF();
    return HAL_OK;
}

I2C_Write()

uint8_t I2C_Write	(	uint8_t	devAddr,
		uint8_t	memAddr,
		uint8_t *	dat,
		uint16_t	size
	)

Definition at line 18 of file fw_i2c.c.

{
    SFRX_ON();
    I2C_MasterStart();
    I2C_MasterSendData(devAddr & 0xFE);
    I2C_MasterRxAck();
    I2C_MasterSendData(memAddr);
    I2C_MasterRxAck();
    while(size--)
    {
        I2C_MasterSendData(*dat++);
        I2C_MasterRxAck();
    }
    I2C_MasterStop();
    SFRX_OFF();
    return HAL_OK;
}

I2C_Write16BitAddr()

uint8_t I2C_Write16BitAddr	(	uint8_t	devAddr,
		uint16_t	memAddr,
		uint8_t *	dat,
		uint16_t	size
	)

Definition at line 65 of file fw_i2c.c.

{
    SFRX_ON();
    I2C_MasterStart();
    I2C_MasterSendData(devAddr & 0xFE);
    I2C_MasterRxAck();
    I2C_MasterSendData(memAddr >> 8);
    I2C_MasterRxAck();
    I2C_MasterSendData(memAddr & 0xFF);
    I2C_MasterRxAck();
    while(size--)
    {
        I2C_MasterSendData(*dat++);
        I2C_MasterRxAck();
    }
    I2C_MasterStop();
    SFRX_OFF();
    return HAL_OK;
}