STM32H7 Secure User Software
I'm planning out a bootloader for the STM32H743zi. I'd like to store two identical images in banks 1 and 2 of flash, and my preference would be to check validity of an image (and copy over a bad image) inside the secure user software section of system memory. This section is described briefly in RM0433, but it doesn't sufficiently describe how to program that area or what happens exactly on boot up. Is there a document somewhere that I've missed that describes how to program and use the system memory?