在单片微机应用中,如何提高其可靠性是至关重要的问题。我们知道,微机在受到某种外界干扰的情况下,会出现程序跑飞(run out)和非法死循环(dead lock)等现象,导致程序失控,其后果往往是不堪设想的。因此,有必要对单片机应用系统采取一些有效措施,具体地说,就是对程序运行实行监视,一旦程序失控,便自动复位保护。下面介绍几种实用方法供读者参考。 In single-chip microcomputer applications, how to improve its reliability is a crucial issue. We know that when the microcomputer is exposed to some kind of external interference, run outs and illegal deadlocks may occur, causing the program to run out of control. The consequences are often unimaginable. Therefore, it is necessary to take some effective measures to the SCM application system, specifically, it is to monitor the running of the program and automatically reset the protection once the program runs out of control. Here are some practical ways for readers reference.