嵌入式uClinux下网络虚拟设备的实现

网络虚拟设备主要用于基于计算机的测试、测量与控制系统。详细描述了在uC linux环境下简单网络虚拟设备的实现过程,主要包括以下3部分:宿主机上运行的设备仿真程序,通过串口实时发送设备的相关信息;目标板上的后台服务程序,用于接收设备信息;简化的HTTP(超文本传输协议),用于宿主机与目标板之间的传输。目标板上的服务程序通过TCP/IP套接口编程实现,其中实现了一个简化的HTTP,其功能类似于一个简单的web服务器。开发的服务程序已在宿主机(Red-Hat 9.0)上完成调试,并成功移植到华恒HHARM4510-R1目标板(uC linux)上。测试结果表明:该实时监控系统可以监测到所要监控的设备运行情况,实现了设备管理员远程管理的功能。

Implementation of NDE Based on Embedded uClinux

The Network Dummy Equipment mainly used for computer based testing,measurement and control systems.This paper presents the implementation of Network Dummy Equipment based on uClinux.It mainly includes three parts: Equipment emulation program used to real-time send information of the equipment through the series port,the background service program of the target board used to receive the equipment information,and the simplified HTTP protocol used to transmit information between host and the target board.The service program of the target board works as a simple web server.The developed service program has been tested on the host(Red Hat 9.0) and is successfully transported to the target board(uClinux).The result of the test shows that the real time monitor system can inspect the run status of the equipment being monitored and carry out the remote management function.