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Independent WatchDog

Anand A
Associate III
Posted on December 28, 2017 at 09:12

We are using Independent WatchDog in our system configured for every 2 seconds. The intention is that if the Refresh is not happening for every 2 seconds, the software will be resetted.

   But, what is observed is that on every power RESET, I can see the RCC->CSR register with Independent WatchDog flag SET. So, this indicates a wrong note to the software that a WatchDog Reset has happened.

   Why is the RCC->CSR SET with IWDG Flag on every power RESET?

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