摘要
针对嵌入式产品维护和无人值守区嵌入式产品升级困难的问题,提出了一种基于TFTP协议的ARM软件远程更新系统的设计方案。该系统主要由LPC2290微控制器、DM9000E网卡芯片以及SST39VF1601型NOR FLASH、MT45W4MW16型RAM组成,采用bootloader技术及以太网TFTP协议来远程更新无操作系统运行环境下ARM微控制器的应用软件。测试结果表明,该系统能够保证数据的正确传输和存储,大大降低了ARM嵌入式系统软件的升级维护难度。
In order to resolve problems of maintenance and upgrade of embedded products in unattended area,a design scheme of remote update system of ARM software based on TFTP protocol was proposed.The system is mainly composed of LPC2290 micro-controller,DM9000E network card chip,SST39VF1601 NOR FLASH and MT45W4MW16 RAM.It can remotely update application software of ARM micro-controller without operating system by use of bootloader technology and TFTP protocol of Ethernet.The testing result showed that the system can ensure correct transmission and storage of data,and reduce difficulty of upgrade and maintenance of ARM embedded system software greatly.
出处
《工矿自动化》
2010年第7期22-25,共4页
Journal Of Mine Automation
基金
天津市科委自然科学基金项目(08JCYBJC14700)
