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DJens · 2024-09-23

I'm struggling with entering RDP level 1 using the ST Cubemx code examples. I am stuck with OPTVERR bit set and never being successful in getting FLASH_OPTR RDP bits set to 0xBB AND written into flash so that it boots using 0xBB and not 0xAA. (I ca...

DJens · 2019-08-12

I am using two LPS22HB on one board to measure two pressures. In about half of the boards, both sensors work wonderfully. In the other half boards, one of two sensors operates perfectly normally but the other sensor reports barometric pressure and...

DJens · 2024-09-27

Panic over.I received production silicon today. Swapping out the EC silicon resulted in expected RDP=level 1 operation, so the main issue is resolved.Thanks for the help,Doug

DJens · 2024-09-25

Thank you Jocelyn: I would obtain production parts but they are not in production yet. I will work with my sales folks to obtain real production parts (STM32U031F8P6)I confirmed the bootloader version by reading the flash location in STM32CubeProg...

DJens · 2024-09-24

Thanks folks: It just struck me that I should have mentioned this, whether it is a red herring or not: The only parts I have access to were provided by ST are pre-production samples. Using the STM32CubeProgrammer I have exactly the same results with...

DJens · 2024-09-24

Thank you Jocelyn: What should be dead simple is very frustrating but I can't put my finger on what I could be doing so wrong with so few lines of code copied from an example that you've demonstrated as working fine. There is something else happeni...

DJens · 2024-09-24

TDK: Thanks for the hint. I should have mentioned that point. Calling HAL_FLASH_OB_Launch does not change behavior (RDP remains at level 0).I should clarify one of my comments in the original post:WAS: ...FLASH_OPTR RDP bits set to 0xBB AND writt...

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STM32U0 Attempting to reach RDP level 1, stuck at RDP level 0 with OPTVERR bit HIGH

LPS22HB: Vastly inaccurate pressure and temperature readings: >25KPa (not HPa) and > 20C error.

Re: STM32U0 Attempting to reach RDP level 1, stuck at RDP level 0 with OPTVERR bit HIGH

Re: STM32U0 Attempting to reach RDP level 1, stuck at RDP level 0 with OPTVERR bit HIGH

Re: STM32U0 Attempting to reach RDP level 1, stuck at RDP level 0 with OPTVERR bit HIGH

Re: STM32U0 Attempting to reach RDP level 1, stuck at RDP level 0 with OPTVERR bit HIGH

Re: STM32U0 Attempting to reach RDP level 1, stuck at RDP level 0 with OPTVERR bit HIGH