基于串口通信的单片机全双工通信系统研究

Research on full-duplex communication system for single-chip microcomputer based on serial communication mode

介绍了单片机串行口工作原理,设计了AT89C51与PC机串行通信系统,利用电平转换器件实现了单片机与PC间的串口通信,进而利用串口通信方式设计了双AT89C51单片机串行全双工通信系统,采用中断方式实现了A/B单片机数据互发互收,最终实现串行口的全双工双机通信,并使用Protues仿真软件进行了系统仿真。

This paper introduces the working principle of the single chip microcomputer serial port. A serial port communication system was designed to achieve the communication between AT89C51 and PC.A full-duplex communication system for double AT89C51 single chip microcomputer serial port was also designed based on the serial port communication mode to achieve the data sending and receiving between the single chip microcomputers A and B. These systems were simulated and validated by using Protues software.