单片机应用系统软件可靠性设计

Reliability Design of Software in System of Single Chip Computer

由于现场工业环境的恶化,存在着大量的干扰源,使单片机控制系统在硬件上无法满足工业环境要求,因此,软件抗干扰技术越来越引起人们的重视。采用软件抗干扰不需增加硬件设备、可靠性高、稳定性好、功能多样、使用灵活,可在一定程度上实现"以软补硬"。文章论述了多种软件抗干扰方法,如"结构化程序设计"、"软件冗余"、"软件拦截"、"程序失控恢复"等,来提高单片机应用系统的可靠性。

Because of the deterioration of the industry circumstance,there are lots of interaction,which make the hardware of the single-chip microcomputer system can't meet the demands of the industry circumstance.Then people pay more attention to antidisturbance by software,for its reliability,stability,function diversity,dexterity,it can make up the shortcoming of the hardware.Introduced the based requirement to insure the reliability of the single-chip microcomputer system, and based on this,expounds some methodology to the reliability such as procedure device, endure fault on software, recovery and so on.