The watchdog timer (WDT, Watch Dog Timer) is a component of the single chip computer. It is actually a counter, usually a large number of watchdogs, and the watchdog starts counting down after the program starts to run. If the program is running normally, CPU should issue an instruction to let the watchdog start counting again. If the watchdog is reduced to 0, it is considered that the program is not working properly, forcing the entire system to reset.

Filename	Size	Update
软件看门狗.txt	6139	2018-05-15

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