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内部看门狗与外部看门狗本页已使用福昕阅读器进行编辑。福昕软件（Ｃ）２００５－２００７，版权所有，仅供试用。Maxim>AppNotes>AUTOMOTIVECIRCUITPROTECTIONKeywords:WatchdogTimer,Reset,Timeout,Code,Toggle,Softwareerror,ReliabilityApr25,2008APPLICATIONNOTE4229ComparisonofInternalandExternalWatchdogTimersBy:EricSchlaepfer,ApplicationsEngineerAbstract:Thisarticlecomparesthebenefitsanddrawbacksofinternal(integratedwiththemicroprocessor)andexternal(hardware-based)watchdogtimers(WDTs).Itexplainsthatinternalwatchdogtimersar