本程序实现PC机与单片机之间的RS232通讯。-This program RS232 communication between PC and MCU.

在ＶＣ＋＋上实现通信串口的ＭＦＣ界面编程，可以实现单片机之间以及计算机之间的数据接收与发送功能。-Implemented in VC++ MFC programming interface serial communication can be achieved between the microcontroller and the computer receiving and sending data between functions.

PC机和单片机之间的通信，实现单片机数字量的输出-For the digtal signal output of MCU,based on the communication of PC and MCU.