【Abstract】With the rapid development of science and technology, the application of single-chip microcomputer is more and more widely. In numerous application system to face a problem, is that it is in the security and reliability of the whole system, the characteristics of the single chip microcomputer system is real-time and the external environment interference factors, in this paper, the anti-interference measures of a few common analysis, from hardware anti-jamming are mainly introduced in the reliability, real-time for single chip microcomputer application system is strong, the characteristics of interference factors more, this paper introduces several practical anti-interference measures, in the design of power supply system, the layout of the circuit board applications and input of interference suppression and soft hardware anti-interference ways, such as redundancy, software trap, "watchdog" technology such as software and expounds the practical analysis.

【关键词】抗干扰  单片机 硬件设计 软件设计       

【 key words 】Anti-interference microcontroller hardware design the software design