STM32F103 STD Periph I2C help

[er3481]

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;
	}
 
}