https://devzone.nordicsemi.com/f/nordic-q-a/100077/ble_radio_notification_init-is-no-longer-working-in-sdk12-3-0Hi Nordic team, I want to measure battery voltage while radio is idle. So I use ble_radio_notification_init function. but when I am compiling the code, NRF_APP_PRIORITY_LOW is not defined. After I set hard code as 2, then keil says Error: L6218Een-USTelligent Community 13Thu, 25 May 2023 05:38:31 GMThttps://devzone.nordicsemi.com/thread/427373?ContentTypeID=1Thu, 25 May 2023 05:38:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:06b3431d-c173-469d-8b0a-6198dfdeaf26bob<p>Hi Einar, thank you very much! I have fixed this issue.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/427213?ContentTypeID=1Wed, 24 May 2023 11:55:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0d303405-3864-43ed-a619-bb79e6702361Einar Thorsrud<p>Hi Bob,</p> <p>As you write &quot;no longer&quot; I assume you made a change that caused it to fail? Or did you come from another SDK version?</p> <p>Regarding&nbsp;NRF_APP_PRIORITY_LOW, that define does not exist in SDK 12.3.0. However, you have&nbsp; APP_IRQ_PRIORITY_LOW. This is define din app_util_platform.h. And&nbsp;sd_nvic_EnableIRQ is implemented inline in nrf_nvic.h. This header file exists in several variants, and when using a SoftDevice the one for the SoftDevice should be used (you must have components/softdevice/s130/headers/, which holds all the SoftDevice header files. Moreover, components/drivers_nrf/nrf_soc_nosd/ should <em>not</em> be in the include path (this has a variant of nrf_nvic.h that should only be used when not using a SoftDevice).</p> <p>Einar</p><div style="clear:both;"></div>