STM32 MCUs Security

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STM32WB55 CPU2 HardFault for unknown reason.

Hey guys, how are you?It's been a long time that i'm facing a issue with STM32WB CPU2, most of the times i just fix it without really knowing the cause of it. Basically what happens is after power-up CPU2 simply won't initialize on the first try. I h...

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MBuen.1 by Senior
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BLE ER key and IR key

I see that those keys are hardcoded in the code. As I understand they are responsible to LTK and CSRK.Should I change ERK and IRK between devices , so they are not the same? Asking for security reasons.

DS.4 by Senior II
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Resolved! Hardware Semaphores for SBSFU in STM32WB

Hello guys,I've implemented SBSFU along side with an USB standalone loader for my project using a STM32WB. My question is, should i implement hardware semaphores and shci_notification for CPU2 during flash erasing and writing operations on my USB ext...

MBuen.1 by Senior
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