/* Generate a stop condition on I2C bus. 
The  */
void I2CStopSend(unsigned long ulBase)
/* Generate a stop condition on I2C bus. 
The  */
void I2CStopSend(unsigned long ulBase)
{
    xASSERT((ulBase == I2C2_BASE) || (ulBase == I2C1_BASE));
    xHWREG(ulBase + I2C_CR1) |= I2C_CR1_STOP;
}