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在单片机应用系统中,软件的可靠性是最重要的指标之一.它要求:1)运行参数环境发生变化时,软件都能可靠运行并给出正确结果,即软件具有自适应性;2)工业环境极其恶劣,干扰严重时,软件必须保证能可靠运行。软件抗干扰是属于Mcs-51单片机系统的自身防御行为,采用软件抗干扰的最根本的前提条件是:系统中抗干扰软件不会因干扰而损坏,在单片机应用系统中,由于程序及一些重要常数都放置在ROM中,这就为软件抗干扰创造了良好的前提条件。因此,软件抗干扰的设置前提条件概括如下:1)在干扰作用下,微机系统硬件部分不会受到任何损坏,或易
In the SCM application system, software reliability is one of the most important indicators.It requires: 1) When the operating parameters of the environment changes, the software can run reliably and give the correct result, that is, the software has the adaptability; 2) Industrial environment is extremely harsh, serious interference, the software must ensure that reliable operation. Software anti-interference is part of Mcs-51 SCM system’s own defense behavior, the most fundamental prerequisite for the use of software anti-interference is: anti-jamming software in the system will not be damaged due to interference in the SCM applications, as the program and some important Constants are placed in the ROM, which creates a good prerequisite for the software anti-interference. Therefore, the software preconditions for anti-jamming are summarized as follows: 1) Under the interference, the hardware part of the computer system will not be any damage, or easy