We are planning to use an external flash memory connected via QuadSPI to the OCTOSPI peripheral of a STM32H735 (at a later stage that would be STM32H733).
This will be used to run firmware and store downloaded firmware updates with SBSFU. For that we will need the OTFDEC peripheral to ensure date is encrypted for storage.
What I need to know is whether the Quad SPI interface of OCTOSPI will be able to work with OTFDEC in memory mapped mode? The memory also does not support HyperFlash.
It is my understanding (from AN5050 and AN5281) that OTFDEC and OCTOSPI are independent peripherals in operation but where OTFDEC comes in between OCTOSPI and the AXI bus so it should be possible.
