https://devzone.nordicsemi.com/f/nordic-q-a/91974/timerHI FLOKS,I HAVE DOUBT ON TIMER WHAT IS TIMER TICKS AND WHAT IS THE FORMULA TO CALCULATE IT? WHY TIMER IS CONVERTING INTO TIMER TICKS?en-USTelligent Community 13Thu, 15 Sep 2022 09:27:22 GMThttps://devzone.nordicsemi.com/thread/386338?ContentTypeID=1Thu, 15 Sep 2022 09:27:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fe1b01d6-e123-416e-8df4-c0c93f2f9b57J&#248;rgen Holmefjord<p>Hi,</p> <p>The&nbsp;<a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/timer.html?cp=4_0_0_5_29">TIMER</a>&nbsp;peripheral runs off the 16 MHz high-frequency clock, which does not necessarily match any standard time-unit. The frequency of the timer is determined by the configured&nbsp;<a title="PRESCALER" href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/timer.html?cp=4_0_0_5_29_4_12#register.PRESCALER">PRESCALER</a>. When the timer is running, it will tick at a given interval, determined by the frequency. For instance if the PRESCALER is 0, the timer will tick every 1/16MHz = 62.5 ns.</p> <p>We have functions in the SDK (<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/group__nrfx__timer.html#ga31fa2f12ecfe0cb09c0046424afeef6f">nrfx_timer_ms_to_ticks</a>()/<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/group__nrfx__timer.html#ga76edc54531996a98e2ddbb67f0faddbb">nrfx_timer_us_to_ticks</a>()) that can be used to calculate time to ticks. You can look at the <a href="https://github.com/NordicSemiconductor/nrfx/blob/v1.9.0/hal/nrf_timer.h#L683-L703">implementation of these functions</a> on how to calculate the ticks.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>