stm32f746 discovery external memory memory mapped

[Chandan Bhatia1]

Hi, In STM32746 discovery, We are using external flash memory in memory-mapped. My doubt is that all external flash memory supports memory-mapped mode or few specific? Can I use MX35LF1GE4AB in memory map mode?

[TDK]

It's not the memory chip that is supporting this mode, it's the microcontroller translating things for you. Any chip which is supported by the FMC will be able to be memory mapped.

[Chandan Bhatia1]

@TDK​ Thanks for the reply. With QSPI flash also we can do memory-mapped (not sure about spi).

[TDK]

QUADSPI memory can also be memory mapped.

SPI memory cannot, unless there's a compatible QUADSPI mode for them, which might be the case, not sure.