ncs zephyr logging and nrfx logging conflict

RE: ncs zephyr logging and nrfx logging conflict

lvh831 — Wed, 18 Oct 2023 20:04:17 GMT

Thank you so much for the links to the document. This explains a lot.

RE: ncs zephyr logging and nrfx logging conflict

Øivind — Wed, 18 Oct 2023 11:04:35 GMT

You can see the peripherals which are enabled by default by their node having

status = "okay";

in the board files:

https://github.com/nrfconnect/sdk-zephyr/blob/main/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts

To change this for your project, add an overlay file to the project folder with the same name as your board, for example nrf52840dk_nrf52840.overlay, which disables the node. For example, to disable spi1:

&spi1 {
	status = "disabled";
};

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/build/dts/intro-input-output.html#input-files

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/build/dts/howtos.html#set-devicetree-overlays

RE: ncs zephyr logging and nrfx logging conflict

lvh831 — Tue, 17 Oct 2023 22:50:12 GMT

Hi Oivind,

Could you please elaborate on how to check or disable the peripheral's node in the devicetree to stop Zephyr from initializing the peripheral? Thanks.

RE: ncs zephyr logging and nrfx logging conflict

Øivind — Mon, 16 Oct 2023 11:10:54 GMT

My pleasure!

If you are having issues initializing a peripheral using the nrfx api, make sure the peripheral's node is disabled in the devicetree. This is to stop Zephyr from initializing the peripheral.

RE: ncs zephyr logging and nrfx logging conflict

lvh831 — Fri, 13 Oct 2023 20:21:34 GMT

Wow! that's so simple and clean. Thank you so much. I wish Nordic zephyr academic (nRF Connect SDK Fundamentals) includes some examples using nrfx (from nordic) instead of generic drivers from zephyr. Thanks again.

RE: ncs zephyr logging and nrfx logging conflict

Øivind — Fri, 13 Oct 2023 14:30:12 GMT

Hi,

There should be no need to move your project to use the nrfx libraries, and Zephyr already defines NRFX_LOG as LOG: https://github.com/nrfconnect/sdk-zephyr/blob/v3.3.99-ncs1-1/modules/hal_nordic/nrfx/nrfx_log.h

To use nrfx libraries just include the header file for the driver and add the config to enable the peripheral.

For example, to use the nrfx spim driver for spim2, you would enable CONFIG_NRFX_SPIM2=y and include the header file in your code with:

#include <nrfx_spim.h>

It's a little hard to say why your current setup is not working, since I don't know exactly what you have changed. Are you using a custom logging implementation?