基于RS485通信方式的多单片机控制系统  

A Control System using serial communication based on RS485 Bus between Multi-singlechip Microcomputers

作　　者：邰鸣[1] 李双田[1] 

机构地区：[1]中国科学院声学研究所

出　　处：《微计算机应用》2008年第7期109-112,共4页Microcomputer Applications

摘　　要：目前,单片机已成为高科技领域中的有力工具。在一些控制任务较复杂的应用场合,多单片机系统具有开发简单、价格低廉、可靠性较高的优势,是智能控制领域的主要发展方向。本文介绍了一套多单片机控制系统的体系结构。该系统有主从机之分,芯片采用菲利浦的LPC900系列中的P89LPC932,系统采用RS485通信协议,以实现可靠的中长距离的智能控制。Currently, single- chip microcomputer has become a powerful tool in the high -tech field. Further more, Multi -SCM （single -chip microcomputers） system becomes a major development direction in intelligent control. In some complex control applications, multi -SCM system takes good advantage of its simple design, low cost and high reliability. In this paper, we introduce a multi - SCM system consisting of a mainframe and several sub - SCM. We use the SCM P89LPC932 in the LPC900 series produced by the Philips Company as the controlling chips. This system implements serial communication based on RS485 Bus between Multi - single- chip in order to achieve a reliable long - range intelligent control.

关 键 词：多单片机系统 RS485 80C51 LPC900 串口通信 智能控制 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]