摘要
介绍了RS-485总线标准及其通信接口器件MAX487,通过与RS-232C的比较,运用Proteus仿真软件,设计了基于RS-485总线的PC机与单片机组成的串行通信测控系统,并介绍了接口原理及程序设计。
This paper introduces the RS-485 bus and the transceiver MAX487.By comparing with RS-232c bus,the serial communication simulation system based on RS-485 bus between PC and single-chip microcomputer is given by using Proteus ISIS.The communication interface and some programs are also introduced in detail.
出处
《机电产品开发与创新》
2011年第1期147-148,共2页
Development & Innovation of Machinery & Electrical Products
