Hello,
I want to integrate a secure boot and secure software update (SBSFU) on a nucleo H753ZI board.
I downloaded the software from https://www.st.com/en/embedded-software/x-cube-sbsfu.html and followed the steps to compile the three programs (SECore, SBSFU and UserApp) proposed in the "projects" folder using the 1-image version of the SBSFU.
The next step was to program the SBSFU application on the board which I tried to do using STM32CubeProgrammer. However, the program has not been completely installed. The first image below shows the device memory after the introduction of the application and the second image shows what should have been programmed. You can observe that the code abruptly stops after the address 0x08000100 while it should continue.
I suspect that something went wrong when I prepared the board and that the region after 0x08000100 has been mistakenly let as an area protected against writing.
My problem is that since this incomplete code has been inserted inside the board, I can not access it in normal mode using STM32CubeProgrammer, I get a DEV_TARGET_NOT_HALTED error. The only way I can connect to the board is through hot plug mode. But from there I am unable to change any configuration, erase the memory or program anything else on the board.
Is there any way to somehow reset the board, or force it to clean anything that has been programmed on it to put it out from its idle and non-available state?
Any suggestions are welcome.
Thank you in advance.
