https://devzone.nordicsemi.com/f/nordic-q-a/41961/timer-configuration-for-nrf51dk-s110-keil-v5Hi I using nrf51DK using keil MDK 5 softdevice s110. I need to update battery level on every 60s and I have initialize timer and start with this code. static void battery_level_meas_timeout_handler(void * p_context) { UNUSED_PARAMETER(p_contexten-USTelligent Community 13Thu, 27 Dec 2018 14:22:29 GMThttps://devzone.nordicsemi.com/thread/163077?ContentTypeID=1Thu, 27 Dec 2018 14:22:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5a3963f6-d089-40da-98d5-585b2e76de85AndreasF<p>Hi.</p> <p>Is the LF clock already running? Because you have commented out the initialization.</p> <p>Have you had a look at the timer tutorial found <a href="https://devzone.nordicsemi.com/tutorials/b/software-development-kit/posts/application-timer-tutorial">here</a>?</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>