nRF5340 audio sync lost when adding oscillator CONFIG

RE: nRF5340 audio sync lost when adding oscillator CONFIG

LandyWang — Tue, 20 Aug 2024 08:07:17 GMT

It works.

Thank you for your assistance.

RE: nRF5340 audio sync lost when adding oscillator CONFIG

Maria Gilje — Tue, 20 Aug 2024 06:46:59 GMT

Hello,

Setting CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH=y in nrf5340_audio/child_image/hci_ipc.conf resolved the sync loss issue. Let me know if you still have issues after the modification.

Best regards,

Maria

RE: nRF5340 audio sync lost when adding oscillator CONFIG

LandyWang — Mon, 19 Aug 2024 03:41:52 GMT

Thank you for your reply.

[quote userid="116814" url="~/f/nordic-q-a/113731/nrf5340-audio-sync-lost-when-adding-oscillator-config/498664"]The building procedure is the same, but the flashing has changed for the command line.[/quote]

I always use the Programmer Tool to do the erase and flashing instead of using the command line. So I think this should have no impact.

[quote userid="116814" url="~/f/nordic-q-a/113731/nrf5340-audio-sync-lost-when-adding-oscillator-config/498664"]Please double check which clock control source you actually need (RC or SYNTH).[/quote]

I checked which clock control source I need, and confirmed that what I need is CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH.

So I still need to solve the sync loss problem.

RE: nRF5340 audio sync lost when adding oscillator CONFIG

Maria Gilje — Fri, 16 Aug 2024 14:27:40 GMT

Hello,

Yes, sorry about your wait.

[quote user="LandyWang"]Will the differences between these two versions of firmware require additional steps during burning, or will the software require additional modifications?[/quote]

The building procedure is the same, but the flashing has changed for the command line. For NCS v2.6.0 you can use west flash --erase instead of using nrfjprog. The commands used with the buildprog.py script are the same for both NCS versions.

[quote user=""]After adding these configurations, bis headset cannot sync with bis gateway.[/quote]

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC and CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH are a choice for CONFIG_CLOCK_CONTROL_NRF_SOURCE which means that the last symbol to be set will n-select all the other choices. So in your case, only CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH is selected.

Based on previous discussions on this topic, it should be compatible with the audio application, but there could be updates which I am not aware about.

Please double check which clock control source you actually need (RC or SYNTH).

I was able to reproduce the sync loss with SYNTH, so if this is what you need, I will search for a possible solution for the sync loss.

Best regards,

Maria

RE: nRF5340 audio sync lost when adding oscillator CONFIG

LandyWang — Thu, 15 Aug 2024 00:58:18 GMT

Hello,

Is anyone still following this issue?

RE: nRF5340 audio sync lost when adding oscillator CONFIG

LandyWang — Mon, 12 Aug 2024 01:07:34 GMT

Will the differences between these two versions of firmware require additional steps during burning, or will the software require additional modifications?

RE: nRF5340 audio sync lost when adding oscillator CONFIG

Maria Gilje — Wed, 07 Aug 2024 15:12:14 GMT

Hello,

The first important difference in terms of firmware I can think of between the two versions is that NCS v2.6.0 uses the SoftDevice Controller while the v2.2.0 uses the LE Audio controller for nRF5340. I will ask internally and come back to you before the weekend with more.

Best regards,

Maria