在单片机与上位机PC通信的过程中,通信速率一般是固定的,并且是一致的,否则通信不会成功,此程序介绍了如何实现串口通信的波特率自动识别.-in SCM between PC and communications process, the communication speed is usually fixed, and is the same. Otherwise communications will not be successful, this procedure on how to ach