Independent watchdog timer (STM32H743)

[Gaurav Singh]

Posted on June 08, 2018 at 15:19

Hello.,.,

I am using IWDG in our application, It is configured for 1SEC timeout . In this I have a requirement to know the Watchdog RESET status, As per reference manual I have seen the register RCC_RSR (bit 26th) but it was not updating even after Watchdog RESET occur. Is there any specific method to read this register or any other way to know the IWDG RESET status.

Any helps would be appreciated lot.,

Regards

GS

#watchdog #stm32h7

[Imen.D]

Posted on June 26, 2018 at 19:07

Hello

gsolankey

,

Are you sure that a reset happened?

May be you should check if the reset pin is toggled.

With Regards,

Imen

[Tesla DeLorean]

Posted on June 26, 2018 at 19:18

More specifically, make sure you aren't driving NRST high externally with any of your attached circuitry, this is known to cause failure in many ARM designs.