About SebastianAdams

SebastianAdams · 2024-10-24

Hi all,I'm new to using the STM secure boot/secure firmware update and I'm trying to understand how the verification works when sending a new firmware image to the board. I got SBSFU running on an STM32H750B-DK dev board and successfully loaded the e...

SebastianAdams · 2024-10-25

Hi @Jocelyn RICARD,I'm using the example under Projects -> STM32H750B-DK -> Applications -> 2_Images_ExtFlash from the stm32cube-expansion-sbsfu-v2.6.2 software archive available from your site. I'm also using Tera Term to connect to the STM32H750B-...

SebastianAdams · 2024-10-24

Ok, we looked into it a bit more, and reading through UM2262 we expect that corrupting either the header tag or the firmware tag in the .sfb firmware image file by flipping a bit would result in the SBSFU rejecting that firmware, but that does not se...

SebastianAdams · 2024-10-24

Hi @Jocelyn RICARD,Interesting, that's about what I assumed since the check failed when I flipped bits at or past byte 1024. However, the corrupted firmware loads without issue even if I flip bits in byte 1, which I assume is part of the header. I te...

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STM32H7 SBSFU Firmware Validation

Re: STM32H7 SBSFU Firmware Validation

Re: STM32H7 SBSFU Firmware Validation

Re: STM32H7 SBSFU Firmware Validation