STM32 MCUs Security

Resetting option bytes of STM32U575xx with RAM application

Currently I write locked the first few sectors of my STM32U575xx. However I would also like the unlock the write protection. Since both J-Link and the ST-Link cannot do this I thought about writing a small application and run it from RAM to reset the...

If RDP is set to level 2, it disables the read and writes access to flash using the internal flash code/program, Which is not correct behavior as per Data sheet

enable MPU protect on SBSFU for STM32L1 returns memory fault on accessing eeprom

According to the integration guide (an5056) it should be possible to use the flash memory to store user data (chapter 8.2) . However, when turning on the MPU protect define the controller goes into a memory fault when accessing the eeprom for reading...

Firmware CRC / Debugger

Dear allI want to check flash integrity with CRC checksum – IAR workbench has built-in features to calculate and add the CRC to the firmware.Under STM32CubeIDE I use a post buildsrec_cat.exe firmware.bin -binary -stm32-l-e 0xEFFC -o firmware_withCRC....

SBSFU - Improve boot time not working

Hi,When I have a look at the AN5056(https://www.st.com/resource/en/application_note/dm00414677-integration-guide-for-the-xcubesbsfu-stm32cube-expansion-package-stmicroelectronics.pdf), there is a possibility on page 39 to improve the boot time. That ...

SBSFU Abnormal error during swapping of downloaded firmware image

Hi,I am facing untraceable issue with SBSFU. I integrated SBSFU features to our application running on device with 512kb flash. After downloading the firmware, during the swapping, it is throwing some abnormal errors while writing to addresses 0x0803...