摘要
分析了单片机串行控制寄存器SCON实现多机通信的方法,以及IBM—PC机中的8250线路控制器程序设计要点,还讨论了如何达到通信双方波特率的一致,给出了RS232C/RS422相互转换的接口电路。
This paper analyses the method for multi-computer serial communication of serial control regis-ter of the single chip microcomputer,describes the design of the routine of 825C controller and discusses the agreement of band rate of both sides. The interface circuit is drawn.
关键词
串行通信
波特率
接口电路
微机
single-chip microcomputer
serial communication
band rate
interinse circuit
