Help with SPI Flash sample and Info

RE: Help with SPI Flash sample and Info

Amanda Hsieh — Wed, 17 Aug 2022 08:36:37 GMT

Happy to help. 🙂

-Amanda

RE: Help with SPI Flash sample and Info

Gary T — Tue, 16 Aug 2022 14:54:27 GMT

Hi Amanda.

I have found the issue preventing this from working on my PC.

In VS Code when I created the build configuration there is a "configuration" setting that needs to be set to prj.conf.

I am sure this has automatically been set for all the other projects and samples I have used so I didn't think to check it. For some reason it wasn't set correctly for me in this instance. Once I set it to prj.conf the code works correctly on my DK.

Thanks again for your help!

Regards,

Gary

RE: Help with SPI Flash sample and Info

Amanda Hsieh — Tue, 16 Aug 2022 13:50:33 GMT

Hi,

I can build your project without issue by adding the application to VScode. Maybe you could try to add the project as the doc.

If you still get the same error, please provide the completed log.

-Amanda

RE: Help with SPI Flash sample and Info

Gary T — Tue, 16 Aug 2022 12:19:48 GMT

Hi Amanda

Thank you for your quick response and for the info you have provided. It is very helpful.

devzone.nordicsemi.com/.../nrf_5F00_test_2D00_spi_5F00_flash2.zip

With respect to question 1, yes, I am using the standard nRF52840DK.

I tested this again by creating a brand new project and importing the sample. It still doesn't work.

When I inspect the compile logs in more detail I see the following error which may explain why it isn't working.

I am not sure why it is giving this error. I haven't changed anything in the settings.

I have had other sample apps that required updating before they would work but in this case I'm not sure what needs to change as there is very little in the project to start with.

I have attached the project for your reference.

Thanks,

Gary

RE: Help with SPI Flash sample and Info

Amanda Hsieh — Tue, 16 Aug 2022 11:22:57 GMT

Hi,

[quote user=""]1) Is there something in the settings I am missing to get this working?[/quote]

Are you using nRF52840DK or the custom board? Without modification, you should be able to run zephyr/samples/drivers/spi_flash on nRF52840DK. Maybe try to run nrfjprog --recover before running the test.

[quote user=""]I assume this is using a Nordic provided qspi-nor driver as the interface for this flash chip?[/quote]

Yes, see https://github.com/nrfconnect/sdk-zephyr/blob/4c5893f9683681bc7c63312a18a0f7af39a483ce/samples/drivers/spi_flash/boards/nrf52840dk_nrf52840.conf#L8

[quote user=""]I would like to include a 512kb SPI NOR chip on my device.[/quote]

JEDEC ID and the size should be all that's necessary to change in the overlay (.dts) file of your project.

[quote user=""]2) Is there any way to tell which specific manufacturers or chips the Nordic driver is compatible with that will help me with my selection or should all SPI NOR chips work with this driver?[/quote]

Most SPI NOR flashes (that run on ~3V) should work as far as we know.

[quote user=""]3) Can the Nordic driver only handle Quad SPI chips or can it also work with Dual and Single SPI chips?[/quote]

Yes, it also works with dual and single SPI.

[quote user=""]4) Is this a standard Zephyr driver for SPI-NOR? How does this this driver differ from the Nordic one?[/quote]

This is the Nordic driver used in the zephyr/samples/drivers/spi_flash sample. See
https://github.com/nrfconnect/sdk-zephyr/blob/4c5893f9683681bc7c63312a18a0f7af39a483ce/samples/drivers/spi_flash/boards/nrf52840dk_nrf52840.conf#L8
https://github.com/nrfconnect/sdk-zephyr/blob/42a1b2637a135036c5355473058cef3d2821af2c/samples/drivers/spi_flash/src/main.c#L18

I am not familiar with the Zephyr driver for SPI-NOR, so not able to point out the difference.

Regards,
Amanda