Refresh IWDG before initializing it , result in Flash PGSERR

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

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Best answer by Agao.1

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

Super User

Which STM32?

What exactly do you do and what are the symptoms?

JW

Agao.1AuthorBest answer

Associate

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

Super User

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

JW

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