Instruction redundancy and software trap technology can not get out of trouble, then the system will be paralyzed.

指令冗余和软件陷阱技术不能使失控的程序摆脱困境，这时系统将瘫痪。

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Power failure protection, instruction redundancy, software trap and digital filter are used to improve the stability of the controller.

控制器采用掉电保护、指令冗余、软件陷阱、数字滤波等方法，以提高控制器的稳定性。

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Based on the experiments, the reason of breakup and hardening technology are studied. The validity of instruction redundancy, software trap and watchdog for anti-breakup are validated by experiments.

在实验的基础上，分析了死机产生的原因及加固方法，并通过实验验证了指令冗余、软件陷阱和看门狗等措施对防止单片机死机的有效性。

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