how to check nRF5340 LE audio "Air log" or "hcisnoop"

RE: how to check nRF5340 LE audio "Air log" or "hcisnoop"

Maria Gilje — Thu, 27 Oct 2022 09:40:52 GMT

Hello,

[quote user="lsy"]Please answer the additional questions I asked 5 days ago.[/quote]

Your case was removed from my list when this reply was marked as an answer. Sorry about the delay this has caused.

[quote user="lsy"]1. If there is no way to LE audio sniffing in VS Code, is there any other development environment? (ex, linux... or using command line hcisnoop)[/quote]

Not to my knowledge, no.

[quote user="lsy"]2. The "Airlog" is sniffed communication between master and Slave in the air using Dongle. [/quote]

Ok. Thank you for specifying.

[quote user="lsy"]3. could you tell me about how to get a "LE Audio data packet level"[/quote]

You need a professional packet analyzer to be able to sniff LE Audio packets. The device which is sniffing needs to be compatible with isochronous channels.

The LTK which is logged in a serial terminal when running the audio application with CONFIG_BT_LOG_SNIFFER_INFO=y configured is used as the decryption key for the packets.

Kind Regards,
Maria

RE: how to check nRF5340 LE audio "Air log" or "hcisnoop"

lsy — Tue, 25 Oct 2022 00:16:40 GMT

Hello Maria

Please answer the additional questions I asked 5 days ago.
After all, what I want is to do "Hcidump" in my current development environment and review the contents at the Profile packet level.
I'd appreciate it if you could guide me through what's possible.

Thank you.

RE: how to check nRF5340 LE audio "Air log" or "hcisnoop"

lsy — Thu, 20 Oct 2022 00:24:23 GMT

Hello. Thank you for answering all the question cases.
I have an additional question for you.
1. If there is no way to LE audio sniffing in VS Code, is there any other development environment? (ex, linux... or using command line hcisnoop)
2. The "Airlog" is sniffed communication between master and Slave in the air using Dongle.
Is it possible to update the dongle(nRF52840) for sniffing LE Audio packet?
3. could you tell me about how to get a "LE Audio data packet level"

Thank you.

RE: how to check nRF5340 LE audio "Air log" or "hcisnoop"

Maria Gilje — Wed, 19 Oct 2022 12:45:33 GMT

Hello Isy,

Thank you for waiting. I apologize for the delay caused by me having to prioritize other cases.

[quote user=""]I want to check the LE Audio (CIS/BIS) function by capturing it as "Airlog" or "hcisnoop" with nRF5340 LE audio EVK.[/quote]

I am not familiar with "Air log". Can you please elaborate what this is?

[quote user=""]1. Can I check "Airlog" or "hcisnoop" with the Nordic USB dongle(nRF52840-Dongle)?[/quote][quote user=""]3. If you can capture "CIS/BIS Airlog" with nRF USB dongle sniffer, please provide detailed guide as well.[/quote]

No, it is not possible to use the nRF52840 Dongle to sniff LE Audio packets.

[quote user=""]2. Or is it possible to extract "Airlog" or "hcisnoop" in Windows VS code environment?[/quote]

To my knowledge there is no module in VS code for packet sniffing.

[quote user=""]4. It seems that LTK is needed.[/quote]

This is correct when using the configs you are using.

[quote user=""]Below is all of my J-link output.
00> *** Booting Zephyr OS build v3.1.99-ncs1 ***
00> nRF5340 APP core started
00>
00> rtt:~$[/quote]

The nRF5340 Audio application uses the UART serial terminal for logging output by default. Have you changed this on your end?

If not, try to connect to your nRF5340 Audio DK with a serial terminal of your choice, or from the "Connected Devices" menu in the nRF Connect for VS Code extension. The COM port outputting the log is the lowest enumeration of the three visible ports per device.

Kind Regards,
Maria

RE: how to check nRF5340 LE audio "Air log" or "hcisnoop"

lsy — Tue, 18 Oct 2022 06:01:27 GMT

Thank you for your reply.
All right.
I'll wait for the results of the review.

RE: how to check nRF5340 LE audio "Air log" or "hcisnoop"

Maria Gilje — Mon, 17 Oct 2022 13:59:57 GMT

Hello Isy,

I have been assigned your case, and will get back to you after I have had the time to take a look at it. Thank you for your patience.

Kind Regards,
Maria