单片机控制系统抗干扰设计

单片机控制系统必须具有较高的灵敏度,但是灵敏度越高越容易把干扰引入系统中,因此抗干扰技术己成为单片机控制系统设计时必须考虑的环节.本文分析了单片机控制系统干扰的主要来源,介绍了印制电路板中地线和电源线的布线方法,从硬件和软件两个方面阐述了抗干扰设计.这些抗干扰方法实际应用中取得了良好的效果,使一些单片机控制系统在现场成功运行.

Anti-disturbance design in the micro-controller system

High sensitivity plays an indispensable role in micro-controller system.However,the higher the sensitivity is,the easier the disturbance is brought into the system.Therefore,anti-disturbance technology has been a necessary sector to consider in designing micro-controller system.The main sources of the disturbance for micro-controller system are analyzed in this paper.Some methods of locating the wire of ground wire and power wire of PCB are introduced.The design of anti-disturbance is stated from hardware and software two aspects respectively.These anti-disturbance technologies have practically brought about good effect,making some Micro-controller Systems run successfully in the working places.