https://devzone.nordicsemi.com/f/nordic-q-a/11181/can-i-get-15-625ms-timer-by-using-app_timercan i get 15.625ms timer by using app_timer?? or just have to use RTC with detail CC value?en-USTelligent Community 13Thu, 07 Jan 2016 09:42:43 GMThttps://devzone.nordicsemi.com/thread/41886?ContentTypeID=1Thu, 07 Jan 2016 09:42:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:80a75a2c-fd4d-4109-a9e4-cd350194dd2fOle Bauck<p>You can get 15.625ms using app_timer with prescaler 0 and timout_ticks 512. As stated in the documentation, the maximum positive jitter is 3 ticks (91.6us) if multiple activities time out at the same time. You may be delayed by other interrupts as the priority of app_timer interrupt/callbacks is set to APP_IRQ_PRIORITY_LOW.</p> <p>If you are to use the RTC directly, you cannot use app_timer (assuming you are using nRF51) since there are only two RTC instances with one being occupied by the SoftDevice. Some modules in the SDK (ble_conn_params, app_button, bsp) uses app_timer, so these can then not be used.</p> <p>What do you aim to do every 15.625ms?</p><div style="clear:both;"></div>