The sulution to realize 32 bits serial communication in Windows 9x system is discussed in this article in detail The MFC application program by VC++ 6.0 Program and Communication Program of micro-controller by C51 is given.

• 本文详细介绍在Windows9x环境下实现32位串行通信的方法，给出了用VisualC＋＋6.；0 编写的32位MFC应用程序，以及用C51编写的下位机通信程序。