What is a watchdog timer?

All Questions › Category: Embedded System › What is a watchdog timer?
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chetan shidling asked 4 years ago

I need short information.

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chetan shidling answered 4 years ago

A watchdog timer (WDT) is a hardware timer that automatically creates a system reset if the main program skips to regularly maintain it. It is often used to automatically reset an embedded device that hangs because of a fault due to hardware and software.