基于ARM9和μC/OS-Ⅱ的Modbus通信协议的实现  

Implementation of Modbus Communication Protocol Based on ARM9 and μC/OS-Ⅱ

作　　者：周军[1] 陈伟峰[1] 

机构地区：[1]河海大学机电工程学院,江苏常州213022

出　　处：《自动化仪表》2009年第2期24-26,共3页Process Automation Instrumentation

摘　　要：介绍了μC/OS-Ⅱ实时操作系统在S3C2410A微处理器上的移植过程及要点,分析了Modbus RTU通信协议的原理,并设计了基于Modbus RTU通信协议的主机和从机通信的程序包。通过ADS1.2集成开发环境,成功地将μC/OS-Ⅱ实时操作系统和Modbus通信协议移植到了S3C2410A微处理器上。通过实验及对其结果的分析,表明Modbus通信协议在32位微处理器上应用是可行的。The procedures and major points of transplanting μC/OS-Ⅱ real-time operating system into S3C2410A microprocessor are intro- duced. The principle of Modbus RTU communication protocol is analyzed ; and the communication software package for host computer and slave computer based on Modbus RTL protocol is designed. Under ADS1.2 integration development environment, the μC/OS-Ⅱ real-time operating system and Modbus communication protocol have been transplanted into S3C2410A microprocessor successfully. Through both experiments and analysis on the results,it is indicated that running Modbus communication protocol on 32-bit microprocessors is feasible.

关 键 词：S3C2410A μC/OS-Ⅱ 移植 MODBUS通信协议 循环冗余校验 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]