How to Read & Write onto the External Flash integrated in nRF7002dk

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Obaid Mufiz — Tue, 03 Dec 2024 11:00:51 GMT

No problem.

Thanks for the input.

You may close this ticket now.

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Håkon Alseth — Tue, 03 Dec 2024 10:20:04 GMT

Glad to hear it is working now!

My deepest apologies for not seeing this issue before recently. Hope you have a wonderful day!

Kind regards,

Håkon

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Obaid Mufiz — Tue, 03 Dec 2024 05:02:55 GMT

Thanks a lot.

It worked now with that commit.

mx25r6435f@0 SPI flash testing
==========================

Perform test on single sector
Test 1: Flash erase
Flash erase succeeded!

Test 2: Flash write
Attempting to write 4 bytes
Data read matches data written. Good!!

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Håkon Alseth — Mon, 02 Dec 2024 15:24:15 GMT

Hi,

My apologies, I was testing on a different SDK version.

The problem is the naming in the spi_flash/src/main.c file, where it should pick up on the "jedec,spi-nor" compatible type.

Could you try this specific commit and see if it works?

https://github.com/nrfconnect/sdk-zephyr/commit/54e61b025e43136df285c611488a1304a787a795

Kind regards,

Håkon

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Obaid Mufiz — Mon, 02 Dec 2024 10:22:53 GMT

I'm attaching it to doc since there is a word limit for the comments.
Click here: drive.google.com/.../view

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Håkon Alseth — Mon, 02 Dec 2024 10:01:52 GMT

Hi,

Can you please share the full log output?

Kind regards,

Håkon

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Obaid Mufiz — Mon, 02 Dec 2024 09:43:07 GMT

Tried building it without an overlay & these are the errors I got when I built it with nrf7002dk/nrf5340/cpuapp board:

build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\2d382dcd92\opt\bin\cmake.EXE' --build 'c:\nordic\myApps\spi_flash\build'

* The terminal process terminated with exit code: 1.
* Terminal will be reused by tasks, press any key to close it.

However when I build it with nrf5340dk/nrf5340/cpuapp board it is successfully build, no errors whatsoever.

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Håkon Alseth — Mon, 02 Dec 2024 09:32:06 GMT

Hi,

Try compiling the sample. It does not need an overlay, because the SPI flash is already setup in the board-files themselves.

Kind regards,

Håkon

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Obaid Mufiz — Mon, 02 Dec 2024 09:16:20 GMT

Hey there,

Yes I did try that but there isn't an option for the nrf7002dk/nrf5340/cpuapp board for this sample.
Check this out:

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Håkon Alseth — Thu, 28 Nov 2024 14:12:14 GMT

Hi,

Did you try to run the zephyr/samples/drivers/spi_flash for nrf7002dk/nrf5340/cpuapp board?

It should work out-of-the-box:

*** Booting nRF Connect SDK v2.8.0-a2386bfc8401 ***
*** Using Zephyr OS v3.7.99-0bc3393fb112 ***

mx25r6435f@0 SPI flash testing
==========================

Perform test on single sector
Test 1: Flash erase
Flash erase succeeded!

Test 2: Flash write
Attempting to write 4 bytes
Data read matches data written. Good!!

If you get any errors or similar, could you please share those?

Kind regards,

Håkon

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

Obaid Mufiz — Thu, 28 Nov 2024 07:10:42 GMT

Thanks for the input.

That's exactly what my question is.

I need to know what changes I need to be making in the configuration files in order to test this out.

RE: How to Read & Write onto the External Flash integrated in nRF7002dk

ujur007 — Thu, 28 Nov 2024 07:00:23 GMT

Hi,

You should wait for official reply from Nordic team but I have the same kit and looked at the documentation for the DK.

There it seems you need not change anything in the hardware to get the External chip working it is connected on SPI interface. You only need to do some modifications in case you want to change power domain and measure the current consumption by the Chip as well.

https://docs.nordicsemi.com/bundle/ug_nrf7002_dk/page/UG/nrf7002_DK/hw_external_memory.html