STM32 MCUs Security

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STM32F103xx Option bytes getting corrupted

Hello, I am using STM32F103c6 cortex-m3. I am using 100 micro controllers in various boards. In some around 10 micro controllers, I have seen a issue of option bytes getting corrupted. Even though I am writing 0xA5 to RDP to remove read protection wh...

how to protect code ?

hello everyone , how can i protect code in stm32f103 with the ability to upgrade code in future ? i am using stmcube programmer ide and stlink programmer

ahmash by Associate II
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  • 3 replies
  • 2 kudos

Resolved! what does the polynomial become when crc8

Greetings. I ran into a problem, I can’t figure out how to become a polynomial if I use not 32 binary mode but in 8 bit mode. MCU STM32F072x8/xBif I use a 32-bit setting, I get the correct data and can process it on a PC, but with 8 bits it doesn’t w...

RSolo.1 by Associate II
  • 2064 Views
  • 4 replies
  • 1 kudos

wireless stack did not start and stop in SBSFU

Hi,I am replacing Standalone Loader(Ymodem serial) and porting BLE_OTA in SBSFU as mention in AN5056 section 8.4 How to replace the standalone loader with a BLE OTA loader i am successfully ported and run BLE OTA but as wireless stack not started it ...

asala.19 by Associate III
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  • 7 replies
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Secure boot on STM32F405 & STM32F407

I see the listing of all variants of STM32F405 & STM32F407 shows secure boot as one of the security functions. But I haven't been able to find any documentation for the same.It would be helpful if someone can point me to the relevant documentation.  

Basavesh by Associate
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  • 1 replies
  • 1 kudos

Resolved! Option bytes in STM32F207

Hi It stated in PM0059 page 16:  The value of an option is automatically modified by first erasing the user configuration sector and then programming all the option bytes with the values contained in the FLASH_OPTCR register.I want to  know : What's ...

HXiao1_0-1704684400808.png
HXiao.1 by Associate II
  • 661 Views
  • 1 replies
  • 1 kudos