nRF5340 running direction_finding_connectionless_rx cannot sync with periodic advertisements if extended advertising data is added

[atrujillo]

Hello,

Not sure if this is the best forum, or a forum related to Zephyr would be better. I am testing with the direction_finding_connectionless_rx sample project. I have another device with a CTE attached to its periodic advertisement. The strange thing is that when I add data to the extended advertising packet, the nRF5340 can't sync with the periodic advertisement. No messages or errors are printed to the console. When I don't add any data to the extended advertisement, it syncs with the periodic advertisement just fine, and IQ samples the CTE.

I was just wondering if anyone else had a similar issue and if they have solved it.

[Sigurd]

Hi!

What version of nRF Connect SDK(NCS) are you using?

Do you see this behavior on the latest version, NCS v2.7.0 ?

[atrujillo]

I was using version v2.6.1, but I downloaded and built the same example application on v2.7.0 and experienced the same issue. Using Wireshark and the nRF Sniffer tool, I was able to verify that there is periodic advertising coming from my other device. This functionality isn't exactly critical, since I was mainly using it for a test but it was definitely strange to me that the inclusion of data in the extended packet.