STM32 MCUs Security

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Resolved! secure firmware update using USART

Hi everyone,I'm working in a Medical devices company and we use currently plenty of STM32s (F0,F1,F4, maybe soon H7). Until now, we didn't bother that much the cybersecurity topic for the firmwares but now the norms are forcing us :D.I checked a bit ...

TKopp.67 by Associate II
  • 2 replies
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Resolved! How to enable the STM32H750VBT6 HW crypto?

I've tried to enable the CRYPT and HASH peripherals by setting bits 5 and 4 in the AHB2ENR register, but all peripheral registers read as zero and writes are ignored as if the clock wasn't enabled or the peripheral was missing. Does this chip have ha...

JBram.1 by Associate II
  • 14 replies
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Resolved! H7 SBSFU DTCM usage

Hi All,Does the SBSFU reserve all of the DTCM in an H7 (stored state information, etc., expected to be stable across Core resets) such that the application shouldn't touch any of it after beginning execution?  The "Protected RAM ..." note in AN5056 F...

Resolved! core locked up and read out fails

Hi,My STM32H735G-DK is having issues.When I try to flash a known good firmware, I get the following:command: STM32_Programmer_CLI -c port=SWD freq=4000 mode=UR --erase all -d build/stm32h735.bin 0x08000000 -v --start 0x08000000-----------------------...

Arno1 by Senior
  • 6 replies
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Resolved! Strategies for storing SBSFU private key

Hello,We have an STM32 project with SBSFU bootloader used for firmware updates. We have a pipeline that is triggered from GitLab that will compile and sign the firmware and update pakcage. Before taking production private keys into use, we are consid...

sute by Associate III
  • 2 replies
  • 0 kudos