摘要
本文介绍了用一片DS80C520单片机和两片RS-485接口芯片SN74LBC184设计RS-485通讯中继器的原理和方法,给出了硬件电原理图和软件流程图,设计简单,可靠性高,性价比高,传输速率比较高。
In this paper, the principle and design of RS-485 repeater, composed of one micro-controller DS80C520 and two SN74LBC184 RS-485 tranceivers mainly, are discussed in details. The circuit diagram and program flow chart are provided. The repeater has the characters of high reliability ,high speed and simplicity.
出处
《微计算机信息》
2004年第7期100-101,共2页
Control & Automation
