实时通信监测的单片机多机通信电路设计

Design of Multi-computer Communication Circuit for Real-time Communication Monitoring

为了改善单片机通信过程中时常会产生一些异常状态,本文采用Proteus软件设计及仿真了一个主要由4个80C51单片机、3个七段LED数码管、4×4矩阵式键盘、模拟开关及电压探针等构成的改进多机通信电路,并借助Proteus仿真图表、示波器及查看寄存器存储窗口等虚拟工具对仿真过程进行了验证性分析。仿真结果表明,改进多机通信电路能够实时监测通信是否正常,提高了单片机的通信稳定性。

In order to improve some abnormal conditions that often occurrs in the communication process of single chip microcomputer(SCM),the Proteus software is used to design and simulate an improved multi-computer communication circuit mainly composed of four 80C51 single chip microcomputers,three 7-segment LED digital tubes,4×4 matrix keyboard,analog switch and voltage probe,etc.The simulation process is verified and analyzed by means of Proteus simulation chart,oscilloscope and virtual tools such as viewing register storage window.The simulation results show that the improved multi-computer communication circuit can monitor whether the communication is normal or not in real time and improve the communication stability of SCM.