串口通信的源码，利用KEILC51编程，并编译通过，在Proteus软件中仿真，能够实现通信。-It is Serial Communication source code! Use KEILC51 to program, and it has been compiled successfully. It can realize communication in Proteus Simulication.

GPIO模拟UART收发数据，单片机赛元SC91F722，开发环境KEILC51，工程正常运行-Sai Yuan microcontroller GPIO analog UART send and receive data, development environment KEILC51, the normal operation of the project