I think the Cortex-M7's prefetch unit is performing speculative instruction fetches to a (partially undocumented) region of system memory (0x1FF0 0000 - 0x1FF7 FFFF) decoded by the flash controller, which sets RDSERR in protest. Mapping this region a...
I think the Cortex-M7's prefetch unit is performing speculative instruction fetches to a (partially undocumented) region of system memory (0x1FF0 0000 - 0x1FF7 FFFF) decoded by the flash controller, which sets RDSERR in protest. Mapping this region a...
Presumably that's because the STM32H7 does not implement a global exclusive monitor in the AXI interconnect, and so it doesn't support exclusive access.