Hi,
I want to send 2-bytes from I2C in a single transaction with std peripheral library. For 1-byte i can handle with code below, but how can i send 2 bytes ? Any advise ?
void I2C_Write_Byte(I2C_TypeDef* I2Cx, uint8_t reg_addr , uint8_t reg_data, uint8_t dev_Addr)
{
switch(i2c_write_seq)
{
case 0:
if(!I2C_GetFlagStatus(I2Cx, I2C_FLAG_BUSY))
{
i2c_write_seq ++ ;
}
break;
case 1:
I2C_GenerateSTART(I2Cx, ENABLE);
i2c_write_seq ++ ;
break;
case 2:
if(I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_MODE_SELECT))
{
i2c_write_seq ++ ;
}
break;
case 3:
I2C_Send7bitAddress(I2Cx, dev_Addr , I2C_Direction_Transmitter);/* Send Device slave Address for write */
i2c_write_seq ++ ;
break;
case 4:
if(I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
{
i2c_write_seq ++ ;
}
break;
case 5:
I2C_SendData(I2Cx, reg_addr);/* Send the Device internal register address */
i2c_write_seq ++ ;
break;
case 6:
if(I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
{
i2c_write_seq ++ ;
}
break;
case 7:
I2C_SendData(I2Cx, reg_data);/* Send I2C3 EEPROM data */
i2c_write_seq ++ ;
break;
case 8:
if(I2C_CheckEvent(I2Cx, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
{
i2c_write_seq ++ ;
}
break;
case 9:
I2C_AcknowledgeConfig(I2Cx, DISABLE);
I2C_GenerateSTOP(I2Cx, ENABLE);/* Send I2C3 STOP Condition */
I2C_AcknowledgeConfig(I2Cx,ENABLE);/* Enable Acknowledgement to be ready for another reception */
i2c_write_seq = 0 ;
break;
}
}
