基于ARM9微处理器的Modbus通信协议的实现  

Realization of Modbus Communication Protocol Based on ARM9 Microprocessor

作　　者：郑鸿彦[1] 苗世洪[1] 张军民[2] 

机构地区：[1]华中科技大学电气与电子工程学院,430074 [2]河南省平顶山市天鹰集团,467200

出　　处：《电气应用》2007年第5期45-48,79,共5页Electrotechnical Application

摘　　要：ARM(Advanced RISC Machines)是ARM公司设计开发的通用32位RISC微处理器,不仅适用于网络通信设备,在工业级现场控制系统中也得到了广泛应用。介绍了如何实现ARM9开发板与PC机之间的Modbus通信协议,重点阐述了ARM中断处理机制及软件的实现方法。ARM （Advanced RISC Machines） is general 32-bit RISC microprocessor developped by ARM corporation, which possesses the characters of high capability, micro power consumption and low price. It is not only applied to the network communi-cation equipment but also to the local control system in industrial grade widely. How to realize Modbus communication protocol between ARM9 developped-board and PC is introduced, the interrupt-handler mechanism of ARM is emphatically expounded, and the implementation method of software is introduced in detail.

关 键 词：ARM 串行通信 RS485 MODBUS通信协议 

分 类 号：TM73[电气工程—电力系统及自动化]