optimizing nRF5340 Audio application for maximum range

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Fri, 12 Jul 2024 18:24:45 GMT

Please contact our regional sales manager on this requirement or Use the sales-related questions on contact us:
https://www.nordicsemi.com/About-us/Contact-us

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Fri, 12 Jul 2024 16:50:32 GMT

Thank you for the investigation. We can design the prototypes of the product without coded phy and update it later (hopefully it will be ready in few months). Can I get some notification when this feature will be ready?

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Fri, 12 Jul 2024 14:10:23 GMT

Hi,

Sorry for the delay.

I have checked with the team and got

Unfortunately, we might not be able to support coded PHY properly at this moment.

Since coded PHY will need more time to transmit an encoded frame, we cannot use the 10ms ISO interval. However, all of our audio datapath is designed for the 10ms ISO interval. We are working on it, but no schedule promise.

Regards,
Amanda H.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Fri, 12 Jul 2024 13:57:11 GMT

I did more experiments:

When I create new clean application i can find

Bluetooth Controller (BT_CTLR)

and inside

Coded PHY Support (BT_CTLR_PHY_CODED)

option in Kconfig GUI, however it does not build.

warning: ENTROPY_NRF5_RNG (defined at drivers/entropy/Kconfig.nrf5:14) has direct dependencies !ENTROPY_NRF_FORCE_ALT && DT_HAS_NORDIC_NRF_RNG_ENABLED && ENTROPY_GENERATOR with value n, but is currently being y-selected by the following symbols:
- BT_LLL_VENDOR_NORDIC (defined at subsys/bluetooth\controller\Kconfig.ll_sw_split:8), with value y, direct dependencies SOC_COMPATIBLE_NRF && !n && !n && BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT (value: y), and select condition SOC_COMPATIBLE_NRF && !n && !n && BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT (value: y)

error: Aborting due to Kconfig warnings

This is all very confusing.

I need someone to test the Audio Application with coded PHY enable option.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Fri, 12 Jul 2024 10:45:39 GMT

Here is another picture that may explain something.

Options under nrf5340_audio/build/hci_ipc/zephyr/.config do not match the kconfig

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Wed, 10 Jul 2024 18:58:04 GMT

The options are in nrf5340_audio/build/hci_ipc/zephyr even in unmodified project. I than add the 3 options to child_image/gci_ipc.conf.

To demonstrate i added check to main. Those options do not propagate to the preprocessor.

Does the same work on your size? Could you share your project?

I have 2pcs of DK. Of course i make the settings on both sides when i test range...

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Wed, 10 Jul 2024 18:16:29 GMT

Then, your audio DK should support coded phy now.

What is your other target, phone or another Audio DK? Do you also set coded phy on another board?

How do you measure the distance? Outdoor without building?

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Wed, 10 Jul 2024 07:35:16 GMT

Hello, yes all the 5 options are included in the file.

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Tue, 09 Jul 2024 18:52:41 GMT

Hi,

Could you build the unmodified audio application for nrf5340_audio_dk_nrf5340_cpuapp and check the values included in the .config under nrf5340_audio/build/hci_ipc/zephyr?

CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y
CONFIG_BT_CTLR_PHY_CODED=y

You also should see the relevant configs are set.

CONFIG_BT_CTLR_ADV_EXT_SUPPORT=y
CONFIG_BT_CTLR_PHY_CODED_SUPPORT=y

-Amanda H.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Tue, 09 Jul 2024 15:32:48 GMT

I experimented with the central_hr_coded sample. It builds with nfr52480dk_nrf52840 board. But when I switch to nfr5340dk_nrf5340_cpuapp if also reports missing dependencies.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Tue, 09 Jul 2024 11:40:06 GMT

I can not do that. The phy member does not exist. This means CONFIG_BT_USER_PHY_UPDATE is not defined although i have it in the hci_ipc.conf as you advised.

I do not understand why the missing dependencies messages are sometimes there and sometimes not.

Could you please just try to build the audio application with coded phy on your size? I got stuck and need to move forward with this.

Thank you

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Mon, 08 Jul 2024 14:44:56 GMT

Do you print phy info as this line on both sides to check?

You can refer to the Central Heart Rate Monitor with Coded PHY and the Peripheral Heart Rate Monitor with Coded PHY samples.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Mon, 08 Jul 2024 12:04:56 GMT

Hello, yes, this build correctly. But there it nothing in the log to on TX/RX side to confirm the correct settings. Tried "Project default" and "Optimize for debugging".
Also could you please give some insight regarding the other settings for maximum range?

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Fri, 05 Jul 2024 19:45:35 GMT

You should add the configs as this hci_ipc.conf:

CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y
CONFIG_BT_CTLR_PHY_CODED=y

Make sure you add the coded PHY settings on both devices.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Fri, 05 Jul 2024 14:28:06 GMT

To be sure i have just created new build configuration. I left all the options untouched.

This is strange because i can now see the message with dependencies again.

I can see some information about the audio stream for example but nothing about PHY settings.

I also quickly tested the range and it seems about the same as before adding the options.

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Fri, 05 Jul 2024 13:51:49 GMT

Hi,

How/What command do you build the application? The default prj.conf would provide full logging capabilities and debug optimizations to ease development.

Regards,
Amanda H.

RE: optimizing nRF5340 Audio application for maximum range

JeraDrson — Fri, 05 Jul 2024 13:24:42 GMT

v 2.6.1

I moved the option to hci_ipc.conf (i tried it before).

I cleared the project, restarted to visual studio and i no longer see the dependencies issues. Is there a way to know ir is really working? Maybe some debug prints?

RE: optimizing nRF5340 Audio application for maximum range

Amanda Hsieh — Fri, 05 Jul 2024 12:47:07 GMT

Hi,

Which NCS version are you using?

[quote user=""]

I added

CONFIG_BT_CTLR_PHY_CODED=y

CONFIG_BT_EXT_ADV=y

CONFIG_BT_USER_PHY_UPDATE=y

to the prj.conf

[/quote]

Please try to add those configs to hci_ipc.conf.

Regards,
Amanda H.