Can I read extended advertising data without sync

[Jay_Lin]

I am working on a project that need to receive extended advertising data, I modify periodic_sync from nrf connect sdk to get the data and it works for my device, but I need to receive another device's data which is manufacture by Texas Instrument, I can't receive the data. I check the packet with sniffer, I found out in Extended Header Flags the Sync Info is Not present, Is it possible to receive extended advertising data without sync.

 

[Hung Bui]

Hi Jay, 

There is a chance that the TI device doesn't do periodic advertising, for example if it simply want to send data on extended advertising (ADV_EXT_IND, AUX_ADV_IND or AUX_CHAIN_IND). 

Please check how the extended advertising is done on the TI chip either by looking at the code or by using a sniffer. 

[Jay_Lin]

Is there other way that nordic can receive extended advertising without sync?

[Hung Bui]

It is possible but we need to know what you are trying to scan. 

You can try to test using the central_hr_coded example. What you need to do is to remove the scan filter (then you need to use this call back: scan_filter_no_match()) or change the filter to match with your advertiser. And you need to change the PHYconfiguration to use 1Mbps instead of Coded PHY. 

[Jay_Lin]

I can't really change anything on the TX side, the device is non connectable.

[Hung Bui]

I didn't  ask for changing in the TX side (advertiser) the example I suggested was the scanner (RX). 

[Jay_Lin]

sorry for the misunderstanding. I 'll test it out.