IWDG not able to trigger reset in U-Boot/Kernel

johnnyc · ‎2023-03-09

On an STM32MP157C the IWDG is setup correctly, but when I trigger an endless loop in U-Boot or a panic in the Kernel, after the timeout the reset does not work. All I know is that the debugger shows a Vector catch. In OPTEE OS the reset works. Is this due to the fact, that OPTEE OS is in trusted world and U-Boot isn't?

Olivier GALLIEN · ‎2023-03-16

Hi @johnnyc ,

Do you have any log to share in case of reset failure / vector catch ?

Thanks

Olivier

Olivier GALLIEN
In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.