摘要： 介绍了作为抗干扰技术之一的WDT的原理及软硬件实现方法。以80386EX为例介绍了WDT 在嵌入式系统中的应用，通过分析原理图和源程序介绍了如何利用WDT防止系统死锁及一些常用的软件抗干扰技术。
关键词:
嵌入式系统,
抗干扰,
80386EX,
WDT
Abstract:
This paper presents the principle, software and hardware realization of WDT, which is one of the anti-jamming technique. Taking 80386EX as an example, it introduces application of WDT in the embedded system, analyses the theoretic diagram and the source programme, recommends how to use the WDT to prevent the deadlock and also presents some common software, anti-jamming technique.
Key words:
Embedded system,
Anti-jamming,
80386EX,
WDT
中图分类号:
吴龙彪；高海英；郑建群. WDT在嵌入式系统中的应用[J]. 计算机工程, 2006, 32(15): 283-封3.
WU Longbiao； GAO Haiying；ZHENG Jianqun. Application of WDT in Embedded System[J]. Computer Engineering, 2006, 32(15): 283-封3.