[STM32H7] external flash in Memory mapped mode with write access

[JShih.2]

Hi,

I'm working on the project using STM32H723 with an external flash (GFX02Z1), I'm moving the application code to that 8MB external flash on GFX02Z1, I saw the guidence mentioned that only read access after memory mapped enabled?

The reason I asked is that we will need to support firmware upgrade, so we may need to conside other solution if not have the write access after memory mapped mode enabled.

Please help to confirm, thanks.

Best Regards,

James Shih

[LCE]

You can always switch off memory-mapped mode and get back to regular (register CR, bits FMODE, called "indirect-write / read") SPI-like read / write mode, you just can't do both (mm / indirect) at the same time.