一些串行通信程序，可以作为大家做串行接口的一个参考-It a a good programme for serial communication,you can read it and maybe get some benifit from it!

这个程序为两个电脑用户开通直接的通信端口-The purpose of this application is to provide a direct communication between 2 computers in a peer to peer like environment. This code should be a great start for people who want to build a full blown chat program using C/C++ and

改程序为rs232调试程序，以pc等上位机，将此程序写入单片机，可以调试通信。-Change program for rs232 debugger to pc and other PC, this program is written microcontroller, you can debug communications.