Connect several nrf5340 DK Audio together

RE: Connect several nrf5340 DK Audio together

ovrebekk — Tue, 13 Dec 2022 13:55:31 GMT

Hi Asbjørn

The top folder (the one containing the other subfolders like nrf, zephyr etc) can be named anything you like, but the nrf folder itself should not be renamed.

As an example this is how it looks for me:

I created a new folder called D:\ncs\rick_dual_bis_demo, and then I ran the earlier mentioned west commands from within that folder to set up a new nRF Connect SDK instance based on Rick's changes.

The nrf repository/folder is the manifest repository, which means it contains the manifest file that west uses to download the right version of the various other repositories, including Zephyr.
It also contains most of the Nordic unique libraries and samples, such as the 5340 LE Audio application.

Are you still having issues getting the example to build?
If so I will check with Rick how much work it is to integrate his example with the standard v2.2.0 release of the nRF Connect SDK.

Best regards
Torbjørn

RE: Connect several nrf5340 DK Audio together

Asbjorn Bjorkkjar — Mon, 12 Dec 2022 15:12:34 GMT

Ok.

I install the SDK at nrf Connect, but this gateway-demo is placed in a different folder named nordic_devzone. Is this a problem? Should I make some changes in the root folder?

What is the difference/necessity of the nrf-folder?

Asbjørn

RE: Connect several nrf5340 DK Audio together

ovrebekk — Mon, 12 Dec 2022 09:27:02 GMT

Hi Asbjørn

How did you install the SDK?
The folder naming is a bit untraditional...

To set up the nRF Connect SDK in the standard way, using the right repository and branch for this demo, you can run the following commands from an empty folder:

west init -m https://github.com/rick1082/sdk-nrf/ --mr dual_gateway_bis_demo
west update

Also, when you run the buildprog command I believe you need to be in the nrf/applications/nrf5340_audio folder, rather than inside the tools/buildprog folder. Then the build command should look something like this:

python tools/buildprog/buildprog.py -c both -b debug -d both

Best regards
Torbjørn

RE: Connect several nrf5340 DK Audio together

Asbjorn Bjorkkjar — Sat, 10 Dec 2022 17:36:55 GMT

Thanks - it helped a lot! (I use Windows 11)

I am now trying to build the program from cmd prompt, and it seems like I am doing something wrong at the initializing of the parameters for core, build etc.

The following was tried out:

C:\ncs\nordic_devzone\sdk-nrf-dual_gateway_bis_demo\applications\nrf5340_audio\tools\buildprog>python buildprog.py -c both -b debug -d both -p
usage: buildprog.py [-h] [-r] [-p] [-c {app,net,both}] [--pristine] -b {release,debug} -d {headset,gateway,both} [-s [SEQUENTIAL_PROG]]
buildprog.py: error: unrecognized arguments: -f

How could this be written correct:

options:
-h, --help show this help message and exit
-r, --only_reboot Only reboot, no building or programming
-p, --program Will program and reboot nRF5340 Audio DK.
-c {app,net,both}, --core {app,net,both}
app, net, or both
--pristine Will build cleanly
-b {release,debug}, --build {release,debug}
Release or debug
-d {headset,gateway,both}, --device {headset,gateway,both}
nRF5340 Audio on the application core can be built for either ordinary headset (earbuds/headphone..) use or gateway (USB dongle)
-s [SEQUENTIAL_PROG], --sequential [SEQUENTIAL_PROG]
Run nrfjprog sequentially instead of in parallel.

I have also received this message:

-- Configuring incomplete, errors occurred!
←[91mFATAL ERROR: command exited with status 1: 'C:\Program Files\CMake\bin\cmake.EXE' '-DWEST_PYTHON=C:\Python310\python.exe' '-BC:\ncs\nordic_devzone\sdk-nrf-dual_gateway_bis_demo\applications\nrf5340_audio\build\dev_headset\build_debug' '-SC:\ncs\nordic_devzone\sdk-nrf-dual_gateway_bis_demo\applications\nrf5340_audio' -GNinja
←[0mTraceback (most recent call last):

File "C:\ncs\nordic_devzone\sdk-nrf-dual_gateway_bis_demo\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 319, in <module>
__main()
File "C:\ncs\nordic_devzone\sdk-nrf-dual_gateway_bis_demo\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 302, in __main
__build_module(build_cfg)
File "C:\ncs\nordic_devzone\sdk-nrf-dual_gateway_bis_demo\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 130, in __build_module

raise Exception("cmake error: " + str(ret_val))

Do you have any suggestions?

-Asbjørn

RE: Connect several nrf5340 DK Audio together

ovrebekk — Wed, 07 Dec 2022 09:43:10 GMT

Hi Asbjørn

Which operating system are you using?

It is possible to install NCS from the command line, using west. Then you can choose exactly which version to check out, you are not limited to only the official releases in the ToolChain Manager.

For more information about this please read this part of the documentation.

[quote user="Asbjorn Bjorkkjar"]And, in the demo, what is meant by building the "headset program" and the "gateway program" to the DKs? Shouldn't the whole code be uploaded to the DKs?[/quote]

The audio application includes an application level configuration parameter called AUDIO_DEV, which is used to set the application in either a gateway or a headset mode.

Various parts of the audio application will check the value of this parameter to determine how the application should be configured.

In order to change this you can simply add a line to your prj.conf file, such as:

CONFIG_AUDIO_DEV=1

If you do a global search for "CONFIG_AUDIO_DEV" you can find all the parts of the code that uses this parameter.

Best regards
Torbjørn

RE: Connect several nrf5340 DK Audio together

Asbjorn Bjorkkjar — Tue, 06 Dec 2022 14:32:15 GMT

Thanks!
It seems like the demo can help us a little further.

The version NCS 1.9.99-dev1 is not available at the nRF Connect. Is there any way for downloading it?

And, in the demo, what is meant by building the "headset program" and the "gateway program" to the DKs? Shouldn't the whole code be uploaded to the DKs?

-Asbjørn

RE: Connect several nrf5340 DK Audio together

ovrebekk — Tue, 06 Dec 2022 11:06:35 GMT

Hi Asbjørn

One of the developers made a demo which sounds quite close to what you are trying to implement:
https://github.com/rick1082/sdk-nrf/tree/dual_gateway_bis_demo/applications/nrf5340_audio

The demo consist of 2 BIS gateways sending out a stream, and one BIS headset that can select one of the streams by pressing button 4.

The demo will need some changes if you want to run connected streams instead (CIS).

It should be possible to run 2 ACL connections as well, allowing you to control the playback from the two gateways by sending a play command over the ACL connection.

Best regards
Torbjørn