Introduction - If you have any usage issues, please Google them yourself
in communications, in order to ensure safe and reliable transport firms, the standard serial I must have shook hands with many signals and state information. This is because the conduct of the mother-pocket walls flutter contented tenancy PU the same speed (which would lead to "the wrong frame") and transmitter to send data faster than fast receiver to receive (this would lead to "overshoot"). To address this problem, we have adopted a simple handshake signal that the transmitter to send only half of each byte (low 4), while the other half megabyte (four high) is used to transmit messages. The information we can place (four high), a simple code : OH : Send the new half-byte data 1H : last re-sending the wrong data transmission 2H : Name 3H end : the end of this document