本程序详细介绍了上位机为mfc界面，下位机位单片机的上位机程序部分，上位机与下位机采用RS232协议-This program details the PC interface for the mfc, lower machine bit microcontroller PC part of the program, the host computer and lower computer using the RS232 protocol

使用vc++6.0编写的mfc程序，用于串口调试，适合新手学习借鉴-Mfc program written using vc 6.0 for serial debugging , suitable for a novice to learn fro