Actually, I looked at the diffs for H745 and H755, in both their CMSIS device header files and startup files – they barely differ at all. There’s only a slight difference in the Crypto / Hash / RNG perpiheral. Every other peripheral is in the same place. Addresses for RAM / Flash are also the same in the linker script. So, the non-working of this is inexplicable to me right now.
Can you clone this project
and then start debugging. The debugger should halt in the first instruction of the Reset_Handler.
Carefully use the “Step Into”, “Step over” and “Run” buttons to check if the code recahes the here marked points, or whether it crashes and ends up in the Hardfault_Handler.
