RE: Question: Can QSPI and SPIM be used simultaneously?

Kenta — Wed, 18 Dec 2024 00:49:56 GMT

Hi, Kazi.

Thank you very much!

Best regards.

RE: Question: Can QSPI and SPIM be used simultaneously?

Kazi Afroza Sultana — Tue, 17 Dec 2024 15:33:51 GMT

Hello,

Yes, it is possible.

These pins are for external flash.

External memory

And the pins you selected for external MCU also looks ok according to pin assignments of nR54L15. None of the pins are collide to one another.

But it is also mentioned here in this section of cross-power domain notes

''Selected pins of P2 can be used for some serial interfaces in the peripheral domain — SPIM, SPIS, and UARTE. This is not the most power-efficient way of connecting these serial interfaces but adds flexibility when designing a circuit board. When setting up the peripheral's PSEL register for cross-domain connections, it must be connected only to the corresponding function listed in the pin assignments table. For example, the peripheral's PSEL.MOSI register must use the P2 MOSI pin from the pin assignment table. The pin assignments table shows which pins can be configured for cross power-domain connections.''

So, you have to consider these issues also.

NB: You can look at the memory requirements of Matter here Matter hardware and memory requirements.

Thanks,

Kazi