S32KのトピックRe: s32k144 csec secure boot BOOT_MAC update

s32k144 csec secure boot BOOT_MAC update

kmh48301 — Wed, 11 Aug 2021 04:09:22 GMT

How can I update BOOT_MAC when secure boot is activated.

!!! I need to avoid erasing csec keys (returning to factory state). !!!

Thanks

Best Regards

Phillip

lukaszadrapa — Wed, 11 Aug 2021 07:44:43 GMT

Hi Phillip,

this is described in the AN5401:

So, the procedure is the same as when updating a key. You just need to calculate the new BOOT_MAC somehow.

Regards,

Lukas

cychen88 — Thu, 10 Nov 2022 05:59:09 GMT

if Secure Boot Modes is Strict Sequential Boot Mode，when secure boot check is error the flash system comes out of RESET，How to recover in this case？