QSPI MASTER and SLAVE

Gowthami412 · ‎2025-01-05

Hi team,

I am working with QSPI I have 2 STM32-NUCLEO-L496ZG-P boards. I want to select one board as Master and one board as Slave and I want to transmit from one device and receive it on other device. But in stm32CubeIDE there is no option to select like Master or Slave. Is there any way to make it possible one as Master and one as Slave.

filipxsikora · ‎2025-01-05

Hi,

no, QSPI slave is not possible on STM32. QSPI interface is not intended for this purpose on STM32. It is mainly to connect external memories. And possibly displays. In both cases, you are always the master.

How much bandwidth do you need? Why do you want to utilize the QSPI for inter CPU communication in the first place?

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filipxsikora · ‎2025-01-05

Hi,

no, QSPI slave is not possible on STM32. QSPI interface is not intended for this purpose on STM32. It is mainly to connect external memories. And possibly displays. In both cases, you are always the master.

How much bandwidth do you need? Why do you want to utilize the QSPI for inter CPU communication in the first place?