目录摘要1引言............................................................................................................................12结构设计与方案选择................................................................................................22.1设计任务...........................................................................................................22.1.1单片机的选择..........................................................................................22.1.2电平转换..................................................................................................22.1.1单片机的选择..........................................................................................22.1.3单片机与pc机通信原理........................................................................22.2软件方案选择...................................................................................................22.2.1上位机编程方案选择.............................................................................32.2.2单片机编程方案选择.............................................................................32.3总体方案选择..................................................................................................23硬件设计....................................................................................................................83.1单片机主要特性...............................................................................................53.2MAX232电平芯片介绍10...........................................................................103.3硬件电路设计图............................................................................................113.3.1PC机与单片机通信接口电路设计框图..............................................113.3.2整体设计原理图....................................................................................114软件设计..................................................................................................................124.1上位机程序设计.............................................................................................124.2下位机程序设计.............................................................................................135软硬件调试部分......................................................................................................215.1PROTEUS软件仿真......................................................................................215.1.1Protues简介...........................................................................................215.1.2Protues仿真电路图...............................................................................225.2VC软件仿真..................................................................................................21结束语..........................................................................................................................27致谢..............................................................................................................................28参考文献......................................................................................................................29摘要本文主要描述了利用PC机与AT89C51单片机之间的通信程序设计实现温度显示。并详述了在VC6.0环境下，上位机利用MSCOMM通信控件与单片机之间串口通信实现温度显示。由单片机采集一个...
