一种低功耗嵌入式系统中的软件抗干扰实现方法

低功耗嵌入式数据采集系统在长期工作过程中易受到干扰,导致程序跑飞。为了保证数据采集工作的不间断性,提高系统的可靠性,本文通过应用实例,设计了一种基于＂看门狗＂的抗干扰实现方案。当基于MSP430单片机的低功耗嵌入式数据采集系统退出休眠后,在不破坏休眠前变量值的前提下,通过对标志变量进行处理,实现系统热启动。并通过实验验证了该方案的可行性。

A Low-power Embedded Systems Software Anti-interference Method

Low-power embedded data acquisition system in the long course of their work are vulnerable to interference, resulting in program runaway.In order to ensure uninterrupted data collection, improve system reliability through application examples in this article, is designed based on a ＂watchdog＂ anti-interference implementations.After exiting Sleep low-power MSP430 microcontroller-based embedded data acquisition system, without damaging the value of the variable before sleep, through the flag variable processing, and system hot start.And through experiments to verify the feasibility of the program.