Possibility to configure "Aux Offset" in AUX Ptr in Extended advertising

[San]

In Bluetooth 5.0 speficication, during Extended advertising there is a possibility to specify an Aux offset value which defines a delay between ADV_EXT_IND and AUX_ADV_IND.

According to this thread, the softdevice did not allow us to modify this Aux offset value. Extended Adverts, AUX Ptr and the 'Aux Offset' value

1. Could you let us know whether this Aux offset can be modified in nRF Connect SDK?
2. Furthermore, is it possible to print or log this offset value?

[Karl Ylvisaker]

Hello,

Could you let us know whether this Aux offset can be modified in nRF Connect SDK?

I spoke to our developers about this and it can unfortunately not be changed. The SoftDevice Controller currently uses a static AUX offset of 330 µs, but this is not a number that we can guarantee wont change in the future.
I.e since it is strictly an internal number we may choose to change this without warning in future releases of the SoftDevice controller, and so you should not base any application critical behavior on this remaining unchanged.

Furthermore, is it possible to print or log this offset value?

Unfortunately no, since this is information internal to the controller that is not reported to the application, since the Bluetooth specification does not specify that this should be included in the advertising reports.

Best regards,
Karl

[San]

This is what I needed to know. Thank you for the reply and clarification.

[Karl Ylvisaker]

San said:

This is what I needed to know.

I am sorry that the answer was not the one you were looking for.

If the functionality is critical to your application you could reach out to your Regional Sales Manager to discuss whether it could be possible to create an API for in the future. Please do not hesitate to let me know if you would like me to put you in contact with the RSM for your region.

San said:

Thank you for the reply and clarification.

No problem at all, I am happy to help! :) 

Best regards,
Karl