Written in VS210MFC serial interface controls a serial port software, debugging, connect the serial port 2, 3 can realize spontaneous since closed, debug the receive buffer m_Mscom. Get_Input () data is correct; When communicate with serial assistants, receiving the number is not correct, when debugging found a serial port to receive buffer m_Mscom. Get_Input () the data error, do not tally with the data, what reason is this? Great god show me the data sent is 0 x01, read cache becomes the value 0 xf0.