I made a board base on STM32H743VI (8MHz crystal, no bootloader), after burn in, both on PA11&12 / PB14&15 no access. If currently only support “SE BX” board?
I made a test program that my board work well, all port are ok.
by select “internal clock” the board can work. So should be a bug that set the clock.
change to 25M crystal, work ok