Confirmation on STM32CubeMX Configuration for Two 8-bit External Memories.

[siddum]

Dear ST Support Team,

We are using the STM32N657X0H3Q1 microcontroller with the XSPI1 interface and have connected two external memory devices, each with an 8-bit data bus.

As described in the STM32N6 reference manual (XSPI dual-octal configuration), the two 8-bit memories are connected in parallel and together form a 16-bit wide external memory interface, sharing a single NCS signal.

In STM32CubeMX, what we have configured the XSPI peripheral as attached below.

And XSPI clock we set as 140mhz.

Could you please confirm whether this STM32CubeMX configuration is correct? If there are any additional settings or recommended , kindly let us know.

Thank you for your support.

Best regards,
siddu marka.

[Souhaib MAZHOUD]

Hello @siddum 

I recommend that you take a look at this article: Integrating and debugging external memory on STM32 MCUs: part 1 – hardware and device fundamentals. It might be helpful.

KR, Souhaib