https://devzone.nordicsemi.com/f/nordic-q-a/62421/changing-tx-power-with-radio-notificaiton-nrf52833-s140Hi, We are developing a solution with our partner company based on nrf52833 using S140 softdevice. I would like to change the advertisement power after every advertisement and also update the adveritsment data with the current power level. Radioen-USTelligent Community 13Wed, 10 Jun 2020 20:50:19 GMThttps://devzone.nordicsemi.com/thread/254337?ContentTypeID=1Wed, 10 Jun 2020 20:50:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:23c45012-8254-4183-a49c-3d01fa78be3eStratosphere<p>Hi Ole,</p> <p>Thanks for your reply. Setting priority to 6 worked.</p> <p>I had based my code on this tutorial which uses priority 3 :&nbsp;<a href="https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/radio-notification">https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/radio-notification</a></p> <p></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/254333?ContentTypeID=1Wed, 10 Jun 2020 19:48:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:98c18d7c-7476-4560-84c0-28af2498150eOle Morten<p>Softdevice functions can only be called from interrupt priorities below 4 (e.g. with higher number), as per&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/processor_avail_interrupt_latency/exception_mgmt_sd.html">this section</a> in the SDS. By default, the radio notification event should run on level 6, so it should be fine to call softdevice functions, but the priority level of the notifications can be changed when <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__ble__radio__notification.html">initializing the ble_radio_notification module</a>. Have you perhaps increased the priority (to 4 or lower), and hence caused this to fail?</p><div style="clear:both;"></div>