About ASiem.3

ASiem.3 · 2022-09-19

Hi, we are using dual bank mode for stable firmware update. We simply set bootaddr0 in option bytes to the opposite bank and reboot the new firmware. Everything works fine. Now we want to enable Level2 chip protection for security reasons. Now I read...

ASiem.3 · 2022-04-20

ASiem.3 · 2022-09-20

Thanks Piranha, yes I'm aware of the drawbacks of using option byte rewrite. And yes, we have a bootloader in place that works just fine. And we swap only if we update firmware which is not happening often.

ASiem.3 · 2022-09-20

Thanks GLASS, yes I was mainly looking for some sample code as all application notes I read just explained what to do but never how. Now I found some sample code that uses remapping. Since we use HAL I discovered that there even is a HAL function for...

ASiem.3 · 2022-04-22

Your screenshot does not show nDBOOT either.

ASiem.3 · 2022-04-22

Yes, dual boot works just fine. The problem is that I cannot disable nDBOOT with the latest Stm32CubeProgrammer because the option does not show up under option bytes. It works just fine with the old version of STM32CubeProgrammer that I used before.

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Can I implement STM32F7 bank switch via option bytes and Level2, chip protection?

We use dual boot on a stm32F7 MCU and set the nDBOOT option via STM32CubeProgrammer. Now I downloaded the latest version of the tool, but the nDBOOT option does not show anymore, thus I cannot enable dual boot.

Re: Can I implement STM32F7 bank switch via option bytes and Level2, chip protection?

Re: Can I implement STM32F7 bank switch via option bytes and Level2, chip protection?

Re: We use dual boot on a stm32F7 MCU and set the nDBOOT option via STM32CubeProgrammer. Now I downloaded the latest version of the tool, but the nDBOOT option does not show anymore, thus I cannot enable dual boot.

Re: We use dual boot on a stm32F7 MCU and set the nDBOOT option via STM32CubeProgrammer. Now I downloaded the latest version of the tool, but the nDBOOT option does not show anymore, thus I cannot enable dual boot.