nrf5340 audio DK cannot configure BIS mode with two gateways

[uzer123]

I can successfully run BIS mode with 3 nrf5340 audio DK (one DK connected with USB with the PC as the source, and two DKs as receivers).

But the buildprog.py script gives an error when i add 

CONFIG_BT_USE_AUDIO_BROADCAST_NAME_ALT=y

in the prj.conf file according to the instructions here

The error i get is: 

myprojectfolder/nrf5340_audio2/prj.conf:66: warning: attempt to assign the value 'y' to the undefined symbol BT_USE_AUDIO_BROADCAST_NAME_ALT

I use windows 10, nrf connect SDK v2.2.0 with Vs Code extension.

[Priyanka]

Hi,

Are you using the debug version or the release version?

If debug version, then changes should be made in prj.conf and for release version, it should be to prj_release.conf

If your issue persists, could you attach your prj.conf or prj_release.conf here?

Best Regards,

Priyanka

[uzer123]

I edit the prj.conf and i compile the debug version:

python buildprog.py -c both -b debug -d both -p -f

prj.conf is the default. I just add:

CONFIG_TRANSPORT_BIS=y
CONFIG_BT_USE_AUDIO_BROADCAST_NAME_ALT=y

If i add only 

CONFIG_TRANSPORT_BIS=y 

i successfully run the BIS example. So i guess my prj.conf file is working correctly.

[uzer123]

I downloaded the SDK from here. I added to the prj.conf this:

CONFIG_TRANSPORT_BIS=y
CONFIG_BT_AUDIO_USE_BROADCAST_NAME_ALT=y
CONFIG_BT_AUDIO_BROADCAST_NAME_ALT="secondgateway"

I checked src/bluetooth/Kconfig and 

BT_AUDIO_BROADCAST_NAME_ALT and 

BT_AUDIO_USE_BROADCAST_NAME_ALT

are both included.

And i try this commad:

python buildprog.py -c both -b debug -d both -p -f --pristine

But i get this error:

warning: Experimental symbol NRF5340_AUDIO is enabled.


warning: Experimental symbol BT_ISO_SYNC_RECEIVER is enabled.


warning: Experimental symbol BT_AUDIO is enabled.


warning: Experimental symbol BT_AUDIO_BROADCAST_SINK is enabled.


warning: BT_VCP_VOL_REND (defined at C:/Users/username/myprojects/nrf5340_audio_apo_github\src/bluetooth\Kconfig.defaults:105) defined without a type

warning: BT_VCP_VOL_CTLR (defined at C:/Users/username/myprojects/nrf5340_audio_apo_github\src/bluetooth\Kconfig.defaults:169) defined without a type
Parsing C:/Users/username/myprojects/nrf5340_audio_apo_github/Kconfig
Loaded configuration 'C:/ncs/v2.2.0/nrf/boards/arm/nrf5340_audio_dk_nrf5340/nrf5340_audio_dk_nrf5340_cpuapp_defconfig'
Merged configuration 'C:/Users/username/myprojects/nrf5340_audio_apo_github/prj.conf'
Merged configuration 'C:/Users/username/myprojects/nrf5340_audio_apo_github/build/dev_headset/build_debug/zephyr/misc/generated/extra_kconfig_options.conf'

error: Aborting due to Kconfig warnings

CMake Error at C:/ncs/v2.2.0/zephyr/cmake/modules/kconfig.cmake:328 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  C:/ncs/v2.2.0/nrf/cmake/modules/kconfig.cmake:29 (include)
  C:/ncs/v2.2.0/zephyr/cmake/modules/zephyr_default.cmake:108 (include)
  C:/ncs/v2.2.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  C:/ncs/v2.2.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)     
  CMakeLists.txt:46 (find_package)


-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\v2.2.0\opt\bin\cmake.EXE' '-DWEST_PYTHON=C:\ncs\toolchains\v2.2.0\opt\bin\python.exe' '-BC:\Users\username\myprojects\nrf5340_audio_apo_github\build\dev_headset\build_debug' -GNinja -DBOARD=nrf5340_audio_dk_nrf5340_cpuapp -DCONFIG_AUDIO_DEV=1 '-SC:\username\myprojects\nrf5340_audio_apo_github'
Traceback (most recent call last):
  File "buildprog.py", line 406, in <module>
    __main()
  File "buildprog.py", line 389, in __main
    __build_module(build_cfg, options)
  File "buildprog.py", line 149, in __build_module
    raise Exception("cmake error: " + str(ret_val))
Exception: cmake error: 1

Any idea?

[Priyanka]

Hi,

Have you referred the programming with script?

Could you try just the following if you face error due to readback protection?: 

python buildprog.py -c both -b debug -d both -p -f 

Do you still get the same errors?

-Priyanka

[uzer123]

Yes, i used this command:

python buildprog.py -c both -b debug -d both -p -f --pristine

but without pristine it's the same..

This is from scratch try (i only changed the 

nrf5340_audio_dk_snr in nrf5340_audio_dk_devices.json) and run the command..Can you replicate it yourself?

[Priyanka]

Hi,

What changes did you do in nrf5340_audio_dk_devices.json ? Could you attach the json file?

Also, do you have problems when you try to build / program using command line?

-Priyanka

[uzer123]

I downloaded the latest SDK that was available in Toolchain Manager (2.2.99) and the project successfully compiled. Now, i have the following problem:

I use the default prj.conf (from the nrf5340 audio example application) and add only CONFIG_TRANSPORT_BIS=y

and flash it to the gateway as usual. 

Now i try to add the second gateway and add to prj.conf file:

CONFIG_BT_AUDIO_USE_BROADCAST_NAME_ALT=y

CONFIG_BT_AUDIO_BROADCAST_NAME_ALT="sndGw"

and flash it to the second DK.

But, whatever i've tried, i cannot make the headset switch between the two with button 5. I can listen only to one gateway, and gateway alt name for the second board never appears and the sound from the second gateway cannot be listened. The led of the 2 gateways are correct and the blue LED1 is blinking (=they are broadcasting). The led1 on the headset is blinking while connected to the first gateway, but solid blue when i press the button 5. This is what headset gives:

And these are the 2 gateways:

[Priyanka]

Hi Dimitrios,

Thank you for sharing this. I will discuss with the developers and get back to you as soon as I get their response.

-Priyanka

[uzer123]

Forget about it, i have some more information on this so i'll come back with an updated question.

[Priyanka]

Sure. No Problem.

[uzer123]

Problem solved with the latest SDK (2.3.0-rc1) and app version (3330)