https://devzone.nordicsemi.com/f/nordic-q-a/2127/lfclk-in-nrf51822Hello! We are using a custom hardware design based on nRF51822. Recently we switched to the new chip version QFAAG0 with softdevice 6.0.0. Our application needs a repeating timer with period of 5 milliseconds, for which we are using the Applicationen-USTelligent Community 13Tue, 08 Apr 2014 06:13:14 GMThttps://devzone.nordicsemi.com/thread/9065?ContentTypeID=1Tue, 08 Apr 2014 06:13:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:51938d82-0fd8-4759-9ba5-23d63f158b08Dmitri Vorobiev<p>Thanks Stefan!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/9064?ContentTypeID=1Mon, 07 Apr 2014 16:23:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bf019ac4-ab3c-4038-9575-73582898348fStefan Birnir Sverrisson<p>Hi</p> <p>Perhaps you can take a look at <a href="https://devzone.nordicsemi.com/index.php/what-low-frequency-clock-sources-can-i-use">this thread</a> for additional info on low frequency clock properties.</p> <p>The crystal should not depend on any other subsystems.</p><div style="clear:both;"></div>