STM32 MCUs Security

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Flash bricked after RDP changes on several STM32G0

Currently developing a product to update the firmware of a product through SWD, i encounter an issue with the flash of the target (STM32G070RB).After multiple changes in the RPD (from 0->1 & 1->0) the flash of the MCU can't be erased. Some word will ...

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rcard by Associate II
  • 1223 Views
  • 8 replies
  • 1 kudos

B-U585-IOT-2A Flash Write Protection

Hi @ communityI am working around the flash lock protection that was somehow enabled in my development board(B-U585-IOT2A) while testing the TF-M SBSFU Application and now i am unable to do a flash erase on my chip. The cube programmer is showing the...

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PJose.4 by Senior
  • 444 Views
  • 1 replies
  • 0 kudos

STM32L series first write to EEPROM fails

I have an STM32L073CZ that I'm having an occasional error with. I'm using the HAL libraries to program EEPROM and a number of our MCUs are seeing errors where they fail to write the first word. After that it'll start working correctly and everything ...

DPast.1 by Associate II
  • 617 Views
  • 0 replies
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Resolved! How to unlock STM32H5 Flash?

I set my flash OB to iROT-Provisioned (Dont know exactly Product life cycle state, but I can not debug anymore) Based on my understanding, it may be in a CLOSED state. However, I am not sure how to change the state as I want to follow the Debug authe...

HNguy.27 by Associate II
  • 809 Views
  • 6 replies
  • 0 kudos

STM32WB35 - Can't write or read flash memory (J-Link)

Hello, I'm a bit stuck and I am not sure what to do so I am asking for your help.Here is the problem :I have a custom board with a STM32WB35 that was working fine for a while. But after multiple (incomplete) boot when I was soldering the battery to m...

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EJean.1 by Associate II
  • 1486 Views
  • 5 replies
  • 0 kudos