https://devzone.nordicsemi.com/f/nordic-q-a/19173/always-extend-timeslot-after-another-consecutive-extensionAccording to S130_SDS_v2.0, I can choose to return NRF_RADIO_SIGNAL_CALLBACK_ACTION_NONE after NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_SUCCEEDED to stop extend more timeslots. But all examples I can see always extend another timeslot after a success oneen-USTelligent Community 13Mon, 23 Jan 2017 13:43:41 GMThttps://devzone.nordicsemi.com/thread/74232?ContentTypeID=1Mon, 23 Jan 2017 13:43:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eeb0565f-0457-4b3d-85ec-8da3a7adb648Petter Myhre<p>That is probably the reason yes.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/74231?ContentTypeID=1Sun, 22 Jan 2017 10:19:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:371acc14-c2ec-439d-bd86-e6f1fe354be3summer<p>maybe I know the reason now. After return NRF_RADIO_SIGNAL_CALLBACK_ACTION_NONE and out of the timeslot, I still use TIMER0 which caused crash.</p><div style="clear:both;"></div>