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Refresh IWDG before initializing it , result in Flash PGSERR

Agao.1
Associate II

I looked at reference manual and didn't see what was causing this. ​

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1 ACCEPTED SOLUTION

Accepted Solutions
Agao.1
Associate II

Thanks, I've found out why. Before initalize IWDG, hiwdg point to NULL. When i refresh IWDG with hiwdg, the problem comes.

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3 REPLIES 3
waclawek.jan
Super User

Which STM32?

What exactly do you do and what are the symptoms?

JW

Agao.1
Associate II

Thanks, I've found out why. Before initalize IWDG, hiwdg point to NULL. When i refresh IWDG with hiwdg, the problem comes.

waclawek.jan
Super User

Please select your post as Best so that the thread is marked as solved.

JW