单片机系统软件抗干扰措施研究  

Software Anti-interference Technique Research of Single Chip Microcomputer System

作　　者：姚敏锋[1] 张晶[1] 

机构地区：[1]广东外语外贸大学信息科学技术学院

出　　处：《电子技术（上海）》2007年第11期172-174,共3页Electronic Technology

摘　　要：单片机应用系统在使用过程中存在大量的干扰源,严重影响了系统运行的可靠性。抗干扰能力成为衡量单片机应用系统优劣的一项重要指标,在提高单片机硬件系统抗干扰能力的同时,软件抗干扰以其零成本实现,设计灵活、可靠性高等特点越来越受到重视。文章从实践的角度出发,对软件抗干扰措施进行了研究。The Single Chip Microcomputer application system has the massive noise sources in the use process, seriously affected the system movement reliability. The anti-interference ability becomes the important target to weight the application system fit and unfit, while sharpens the hardware system anti-interference ability, the software anti-interference by its zero cost realization, Nimble design and reliable higher characteristic, more and more receives takes. This article has conducted the research of the software antiinterference measure .from the practice angle.

关 键 词：单片机 指令冗余 软件拦截 软件看门狗 数字滤波 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]