https://test-devzone.nordicsemi.com/f/nordic-q-a/87781/zigbee-timerzigbee stops working when I use timer 2 for asynchronous UARTE operation. Tell me where to see which stack uses which periphery. Or is it some kind of mistake on my part? With timer 3 all OK. --- CONFIG_ZIGBEE =y CONFIG_ZIGBEE_APP_UTILS =y CONFIG_ZIGBEE_ROLE_COORDINATORen-USTelligent Community 13 Non-ProductionWed, 11 May 2022 12:31:23 GMThttps://test-devzone.nordicsemi.com/thread/367402?ContentTypeID=1Wed, 11 May 2022 12:31:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f21789e5-3689-4dce-88b0-26409c91d771user77782<p>Hi,&nbsp;</p> <p><span>TIMER2 is used by the Zigbee stack, so you should use another timer instance. You can see this in <a href="https://github.com/nrfconnect/sdk-nrf/blob/main/subsys/zigbee/osif/zb_nrf_timer_counter.c#L16">zb_nrf_timer_counter.c&nbsp;(found in nrf/subsys/zigbee/osif)</a>. Also, i</span><span>f you look at&nbsp;</span><a title="https://developer.nordicsemi.com/nrf_connect_sdk/doc/1.9.1/kconfig/config_zigbee.html#std-kconfig-config_zigbee" href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_ZIGBEE.html#std-kconfig-CONFIG_ZIGBEE" rel="noopener noreferrer" target="_blank">CONFIG_ZIGBEE</a><span>&nbsp;you can see that it implies</span><span>&nbsp;COUNTER_TIMER2, so enabling Zigbee will enable counter on TIMER2.</span></p> <p><span>Regards,<br />Amanda</span></p><div style="clear:both;"></div>