Trying to reset M33 with IWDG4

[richard1wang]

Hi

    I am trying to reset M33 with IWDG4. I configured the IWDG4 and enable IWDG4 Reset Interrupt in EXTI2.

 Now I see it loop into the IWDG4_RST_IRQHandler. But M33 not reset.

  Can anyone help to figure it out?

Thanks a lot