I'm working on H745 dualcore MCU and I'm trying to get STM32 UID from M4 core accessing to addres 0x1FF1E800UL. Reading datasheet I can't find explanation why that address range is not accessible.

I successfully create 0x40 bytes on "not initialized" area on top of AXI RAM (0x24000000) for CORE M7 and on top of AHB SRAM1 (0x30000000) in order to info about a fault immediately before reset MCU (for example if a trap of NULL pointer is triggered...

I'm trying to use Internal Flash Interrupt API on M4 but I can't get HAL_FLASH_EndOfOperationCallback. Debugging code, I get interrupt but in the HAL_FLASH_IRQHandler callback event is not called!Can you help ME?