RE: Using Zephyr Flash library rather than NVS

DamoL — Wed, 14 Sep 2022 11:24:56 GMT

Ohhh this is embarrassing ...

I think I must have been tired yesterday - I totally forgot the fact that in my old code, before I initialised the NVS library I also pulled up the write protect pin.

I just tried pulling that pin up and it worked straight away.

Sorry to waste your time - and thank you for your answer Simon!

Thanks,

Damien

RE: Using Zephyr Flash library rather than NVS

Simon — Wed, 14 Sep 2022 10:58:26 GMT

I just tested the sample spi_flash with the board selection nrf9160dk_nrf9160_ns v0.14.0 (that revision will enable external flash) and NCS v2.0.0.

I used the board nRF9160 DK v1.0.1

I also created a file \zephyr\samples\drivers\spi_flash\boards\nrf9160dk_nrf9160_ns.conf and added CONFIG_SPI_NOR=y.

I got the following output:

*** Booting Zephyr OS build v3.0.99-ncs1  ***

JEDEC SPI-NOR SPI flash testing
==========================

Test 1: Flash erase
Flash erase succeeded!

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

Which means that I'm successfully able to read and write to external flash using the API zephyr/drivers/flash.h

I see now that you're using NCS v1.6.0. Let me know if the above works on that version too.

Best regards,

Simon