由于单片机应用环境往往比较恶劣，干扰严重，这就要求单片机应用系统应有较强的抗干扰能力。尽管我们采取了硬件抗干扰措施，但由于干扰信号产生的原因很复杂，且具有很大的随机性，难免保证系统完全不受干扰。因此，通常在硬件抗干扰措施的基础上，采用软件抗干扰技术加以补充，作为硬件措施的辅助手段。
本文将重点从软件抗干扰方面介绍单片机所采取的措施。
关键词：单片机 软件 抗干扰

Because MCU application the environment be usually worse, interference severity, this will beg the MCU application system should have stronger nti- interference ability.Though we adopted the hardware anti- interference measure, because of interference signal creation of the reason be very complex, and have very big of random, unavoidably assurance system complete be free from interference.Therefore, usually at the hardware anti- interference the foundation of the measure up, the adoption software anti- interference technique take into complement, Be a hardware measure of assistance means.
This text the point is from the software anti- interference introduction MCU adopt of measure.
Keyword: MCU software anti- interference
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As SCM application environment often poor, serious interference, which calls for the MCU application systems should be strong anti-jamming capability. Although we have taken a hardware anti-jamming measures, but because the cause interference signal is complex, and has a lot of randomness, it is inevitable guarantee system completely uninterrupted. So it is usually in the anti-jamming measures hardware on the basis of anti-jamming technology used to add software, hardware measures as a means of support.
This paper will focus on anti-jamming software introduced the measures taken by the SCM.
Key words: SCM software anti-jamming