802.15.4 sniffer not working

[EnricoB]

Dear Nordic support,

I'm trying to install Nordic 802.15.4 sniffer but I am unable to see the DK as a interface in Wireshark.

My setup is:

- Windows 10

- nRF-Sniffer-for-802.15.4 on commit 2b76efe2 

- PCA10056 board flashed with nrf802154_sniffer.hex, led 1 is blinking so I suppose the DK is working correctly

- Python 3.10.8

- JLink driver 7.80

The board is correctly seen as JLink UART Port

But the interface could not be seen, this is the output of nrf802154_sniffer.bat:

PS C:\Program Files\Wireshark\extcap> .\nrf802154_sniffer.bat --extcap-interfaces
extcap {version=0.7.2}{help=https://github.com/NordicSemiconductor/nRF-Sniffer-for-802.15.4}{display=nRF Sniffer for 802.15.4}
control {number=6}{type=button}{role=logger}{display=Log}{tooltip=Show capture log}

I tried to install the Nordic BLE Sniffer on the same board and it works correctly.

Thank you for your support

[Simonr]

Hi

I just set up the nRF Sniffer myself (on a new computer). And did not see the "interface" either when running the --extcap-interfaces until I flashed the nRF Sniffer hex file onto the nRF52840 Dongle I used. Can you make sure the DK you're using is connected to the computer and try doing and Erase & Flash in the nRF Connect Programmer app?

Best regards,

Simon

[EnricoB]

Hi Simon,

I'm not using the dongle but the PCA10056, it is correclty flashed since I can the see the led blinking.

Anyway I found the problem, I used to connect to the JLINK Port (J2 connector) for Nordic BLE Sniffer. This seems not to work  for 802.15.4 sniffer, I have to connect to the nRF USB port. In this way I am able to sniff 802.15.4 packet. 

I think this should be explained better in the documentation.

Thank you

BR 

[Simonr]

I have forwarded your suggestion to make this clearer in the documentation. Thank you for your feedback!