A hardware timer that is periodically reset by software. If the software crashesor hangs, the watchdog timer will expire, and the entire system will be reset automatically.

 
  • 一種由軟件定時(shí)重設的硬件定時(shí)器。如果軟件被破壞而掛起,看門(mén)狗定時(shí)器將超時(shí),整個(gè)系統將自動(dòng)重啟。
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