How to interface external flash memory through SPI protocol using nrf9160 with "ZEPHYR RTOS"

[_bhanu]

Hi,

I'm using nrf9160 with Zephyr RTOS  i need to interface  external flash memory  using SPI protocol.

but, I didn't get any example code for that. can you help me to find example code for SPI protocol using nrf9160 with Zephyr RTOS.

Thank you

[Hakon]

Hello,

can you help me to find example code for SPI protocol using nrf9160 with Zephyr RTOS.

I believe the spi_flash sample in zephyr\samples\drivers can be used with some minor modifications. You can try that, and let me know if you get stuck.

[_bhanu]

Hi Hakon,

thanks for reply,

Hakon said:

the spi_flash sample in zephyr\samples\drivers

I tried with this path to build  spi_flash for nRF9160  but I'm getting some errors.

can you help me to solve this errors

[Sigurd]

Hi,

Take a look at this sample: https://github.com/simon-iversen/sdk-nrf/tree/ext_flash_mcuboot_91dk/samples/nrf9160/http_update/application_update

[_bhanu]

Hi Sigurd,

Sigurd said:

Take a look at this sample: https://github.com/simon-iversen/sdk-nrf/tree/ext_flash_mcuboot_91dk/samples/nrf9160/http_update/application_update

Thank you for reply  but its not helpful foe me, can you suggest another example which is useful to integrate  SPI protocol with External FLASH  in my case I'm using "W25Q32JV" spi flash ,so can you suggest example which really helps to work on my "W25Q32JV" SPI FLASH.

Thanks in advance.

[Sigurd]

There are some boards that uses the W25Q32JV. You can take a look at how these boards have added W25Q32JV to the devicetree. E.g:

https://github.com/nrfconnect/sdk-zephyr/blob/v3.0.99-ncs1/boards/arm/sparkfun_thing_plus_nrf9160/sparkfun_thing_plus_nrf9160_common.dts#L142

[_bhanu]

Hi Sigurd,

Sigurd said:

github.com/.../sparkfun_thing_plus_nrf9160_common.dts

thanks it really helpful for me. I got that  but my qurey still not resloved.

as i mention in query  i want to configure SPI   in my code  but  I'm not getting any idea to configure SPI.

can you give any idea  how to configure SPI in my code...? 

Thanks in advance.

[Sigurd]

_bhanu said:

can you give any idea  how to configure SPI in my code...?

You can change the SPI node fields(pins to use, frequency , etc) in the devicetree