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qspi flash sample in zephyr

Abderrezak Mekkaoui

Dear All,

I am looking for sample code to use an external QSPI flash (MACRONIX MX25R6435FZAIL0). The code is run an nRF52840 based custom board.

Your help is appreciated.

Thanks

  • 0

    I'm sorry, but we don't have any QSPI sample projects in NCS as of yet, and I was not able to find a sample in Zephyr either. You can check out our QSPi driver located here, but a full sample is still in the works. 

    Alternatively, you can check out the QSPI example in our nRF5 SDK and use that as a base for a template of sorts in a Zephyr project, just to get a feel for how initialization is done and so on.

    Best regards,

    Simon

  • 0

    , isn't the "spi_flash" example (in "/ncs/zephyr/samples/drivers/spi_flash") an example of the the nRF52840-DK using the MX25R624 with QSPI?

    Additionally, I have a related question, from the following https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf52840%2Fqspi.html, it mentions that the QSPI can be used for “Single/dual/quad SPI input/output”. In the "spi_flash" example quad spi is used. Do you know how I could go about getting dual-spi to work within Zephyr for the MX25R64?

  • 0

    Hi Matt

    Yes, this is correct. I'm not entirely sure, but this might not have been part of the Zephyr version available in August, but I could be wrong of course and I may simply have missed it. Either way,the SPI_Flash sample project should indeed work for using the MX25R624 with QSPI. Thank you for the update!

    I'm sorry, it doesn't seem like we've got any dual-SPI examples in particular. If you have any particular questions/issues with setting this up, I suggest creating a separate ticket where you describe in detail what exactly you need help with in regards of implementing dual SPI and we'll do our best to assist you.

    Best regards,

    Simon

  • 0 in reply to Simonr

    , is there any new information regarding getting dual-spi to work within Zephyr for the MX25R64?

  • 0

    Hi

    No, we do not have any particular dual SPI examples, but it should be able to modify the QSPI example to run in dual SPI mode. I would suggest that you create a separate DevZone ticket if you need any details on how to do that though.

    Best regards,

    Simon

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