Auracast example

[JeroenT]

I am using NCS v2.8.0.

After successfully running the headset example with one gateway, one left channel receiver and one right channel receiver am trying to get the Auracast example working, so I can connect three receivers to the gateway.

I added CONFIG_TRANSPORT_BIS=Y to prj.cfg, but after compiling and programming the system functionality did not change to Auracast. Do I need to change something to nrf5340_audio_dk_devices.json as well? The current one see below. I also did not find any references to CONFIG_TRANSPORT_BIS in the source code of v2.8.0. Do I miss something?

[
{
"nrf5340_audio_dk_snr": 1050111739,
"nrf5340_audio_dk_dev": "headset",
"channel": "left"
},
{
"nrf5340_audio_dk_snr": 1050156869,
"nrf5340_audio_dk_dev": "gateway",
"channel": "NA"
},
{
"nrf5340_audio_dk_snr": 1050128347,
"nrf5340_audio_dk_dev": "headset",
"channel": "right"
}
]

[JeroenT]

Hi. I am trying to get stereo example working, but I get a build error. With the original v2.8.0\nrf directory it just works. I hope you could help me to correct my way of building it. I take these steps:

- Open cmd prompt

- Type: cd ncs\v2.8.0

- Type: git clone https://github.com/rick1082/sdk-nrf

- Type: cd sdk-nrf

- Type: git checkout stereo_bis_receiver_pre270

- Type: cd applications\nrf5340_audio\tools\buildprog

- Type: buildprog.py -c both -b debug -d both

+------------+----------+---------+--------------+---------------------+---------------------+
| snr | snr conn | device | only reboot | core app programmed | core net programmed |
+------------+----------+---------+--------------+---------------------+---------------------+
| 1050121107 | ←[33mFalse←[0m | headset | Not selected | Selected | Selected |
| 1050197742 | ←[33mFalse←[0m | gateway | Not selected | Selected | Selected |
| 1000 | ←[33mFalse←[0m | headset | Not selected | Selected | Selected |
+------------+----------+---------+--------------+---------------------+---------------------+
Invoking build step
Net core uses precompiled hex or child image
Run: west build C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio -b nrf5340_audio_dk/nrf5340/cpuapp --sysbuild -d C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\build\dev_headset\build_debug
ninja: error: loading 'build.ninja': The system cannot find the file specified.

FATAL ERROR: command exited with status 1: 'C:\Program Files\CMake\bin\cmake.EXE' --build 'C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\build\dev_headset\build_debug'

[Amanda Hsieh]

How do you install the NCS? I would suggest to Installate with Toolchain Manager, and then open the command prompt for NCS v2.8.0  to build. 

[JeroenT]

Hi! I installed it using the Toolchain Manager. I did not know the cmd prompt had to be opened using the Toolchain Manager. Maybe this can be added to the build instructions on this page: Building and running nRF5340 Audio applications

I get a different error now with the stereo_bis_receiver_pre270 branch. See below.

I do not get this error when building the standard v2.8.0 nrf5340_audio example.

I hope you can help me. We really want to use the NRF5340 in our product, but the build system is a bit problematic now...

(v2.8.0) C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\tools\buildprog> buildprog.py -c both -b debug -d both
No programmer/debugger connected to PC
No snrs connected
+------------+----------+---------+--------------+---------------------+---------------------+
| snr | snr conn | device | only reboot | core app programmed | core net programmed |
+------------+----------+---------+--------------+---------------------+---------------------+
| 1050121107 | ←[33mFalse←[0m | headset | Not selected | Selected | Selected |
| 1050197742 | ←[33mFalse←[0m | gateway | Not selected | Selected | Selected |
| 1000 | ←[33mFalse←[0m | headset | Not selected | Selected | Selected |
+------------+----------+---------+--------------+---------------------+---------------------+
Invoking build step
Net core uses precompiled hex or child image
Run: west build C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio -b nrf5340_audio_dk/nrf5340/cpuapp --sysbuild -d C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\build\dev_headset\build_debug -DCONFIG_AUDIO_DEV=1
usage: west [-h] [-z ZEPHYR_BASE] [-v] [-V] <command> ...
west: unknown command "build"; workspace C:\ncs\v2.8.0 does not define this extension command -- try "west help"
Traceback (most recent call last):
File "C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 418, in <module>
__main()
~~~~~~^^
File "C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 401, in __main
__build_module(build_cfg, options)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
File "C:\ncs\v2.8.0\sdk-nrf\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 176, in __build_module
raise Exception("cmake error: " + str(ret_val))
Exception: cmake error: 1

[Amanda Hsieh]

JeroenT said:

I get a different error now with the stereo_bis_receiver_pre270 branch. See below.

It's a branch of NCS v2.7.0. Please use NCS v2.7.0 to build.

[JeroenT]

Hi. I still have issues with building. It takes too much time, so I gave up for now... Is stereo support planned in a later SDK version? Then I will just wait for this I guess.

[Amanda Hsieh]

Here is the branch for NCS v2.8.0: https://github.com/rick1082/sdk-nrf/tree/cis_stereo_audio_sink_pre280