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

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?
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  • 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

Reply
  • 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

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