Zbus problems with using the nRF Connect for VS Code add-in

RE: Zbus problems with using the nRF Connect for VS Code add-in

lcj — Fri, 03 Nov 2023 10:13:51 GMT

Yes. The "too few arguments in invocation of macro" when using ZBUS_OBSERVERS_EMPTY continues but doesn't prevent me from building and running. This happens in the sample as well.

RE: Zbus problems with using the nRF Connect for VS Code add-in

Hung Bui — Fri, 03 Nov 2023 08:36:07 GMT

Great. Thanks for the info. I assume the issue is now resolved ?

RE: Zbus problems with using the nRF Connect for VS Code add-in

lcj — Thu, 02 Nov 2023 16:15:34 GMT

Added this to the prj.conf and it compiled:

CONFIG_ZBUS_RUNTIME_OBSERVERS_POOL_SIZE=2

RE: Zbus problems with using the nRF Connect for VS Code add-in

lcj — Thu, 02 Nov 2023 15:19:16 GMT

I do get a ZBUS_CHAN_DESIGN I get a "too few arguments in invocation of macro", but adding the ZBUS_OBS_DECLARE gets me through this challenge, so it does not appear to be an issue from an upgrading Zephyr standpoint...maybe only intellisense.

My error in the other project is "undefined reference to `zbus_chan_add_obs'" which is why I thought there was a problem with the Zephry version, but the sample seems to take it.

Here is my code (edited to simplify):

void screen_watchface_add_obs() {

    zbus_chan_add_obs(&clock_second_chan, &screen_watchface_clock_second_listener, K_MSEC(100));

}

RE: Zbus problems with using the nRF Connect for VS Code add-in

Hung Bui — Thu, 02 Nov 2023 14:57:11 GMT

Hi Leo,

Could you tell what exact error you have ?
This worked for me:

ZBUS_OBS_DECLARE(consumer_sub);
ZBUS_CHAN_DEFINE(processed_data_chan, struct sensor_msg, NULL, NULL, ZBUS_OBSERVERS_EMPTY,
		 ZBUS_MSG_INIT(.x = 0, .y = 0, .z = 0));

RE: Zbus problems with using the nRF Connect for VS Code add-in

lcj — Thu, 02 Nov 2023 12:44:59 GMT

I have zbus running and I did get the runtime_obs_registration sample working as well. But what if I want the observer to be EMPTY. I have seen examples of this, but can't adapt the sample to conform.

This works:

ZBUS_CHAN_DEFINE(processed_data_chan, struct sensor_msg, NULL, NULL, ZBUS_OBSERVERS(consumer_sub),
ZBUS_MSG_INIT(.x = 0, .y = 0, .z = 0));

This gets an error:

ZBUS_CHAN_DEFINE(processed_data_chan, struct sensor_msg, NULL, NULL, ZBUS_OBSERVERS_EMPTY,
ZBUS_MSG_INIT(.x = 0, .y = 0, .z = 0));

Which is similar to what I want to do so that a given service needs to know about the channel but the channel does not need to be defined with the service.

RE: Zbus problems with using the nRF Connect for VS Code add-in

Hung Bui — Fri, 27 Oct 2023 12:43:39 GMT

Hi Leo,

The west.yml I was looking at was in nrf folder.

Could you try testing on our SDK v2.4.2 with no modification ? (which use Zephyr 3.3.99) ?
I did a quick test here and had no problem with the runtime_obs_registration example.

Have you managed to run the \zephyr\samples\subsys\zbus\hello_world ?

RE: Zbus problems with using the nRF Connect for VS Code add-in

lcj — Fri, 27 Oct 2023 10:17:27 GMT

I have nRF Connect version 2.4.2 and know how to update it. I have multiple west.yml files, which one? It looks like you have Zephyr 3.3.99-ncls-1. It looks like the latest version of Zephyr is 3.5.99 but nRF Connect uses a different version.

RE: Zbus problems with using the nRF Connect for VS Code add-in

Hung Bui — Thu, 26 Oct 2023 07:45:11 GMT

Hi,
How did you install NRF Connect SDK ?
If you have updated nRF Connect for VSCode to latest version (2023.10.49) you can install new nRF Connect SDK inside nRF Connect for VS Code.

Otherwise you can use west command line tool to update. See here: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/installation/updating.html

You can find your zephyr version by looking at the nrf\west.yml.

RE: Zbus problems with using the nRF Connect for VS Code add-in

lcj — Thu, 26 Oct 2023 01:28:18 GMT

How do I find my Zephyr version? Is there a way to upgrade my Zephyr version through nRF connect for vs code?

RE: Zbus problems with using the nRF Connect for VS Code add-in

Hung Bui — Wed, 25 Oct 2023 11:32:50 GMT

Hi Leo,

Please state which Zephyr/NCS version you are using.
ZBUS is only supported in Zephyr lately so there is a chance that your version doesn't have it supported.
Also, my suggestion is to also ask the question in Zephyr Discord channel that you may have better support:
RE: One-to-many event handling for Zephyr with data transfer?