Optional 32.768kHz crystalhttps://devzone.nordicsemi.com/f/nordic-q-a/107490/optional-32-768khz-crystalI have a question about the 32.768kHz crystal in relation to Bluetooth. Is the crystal necessary for Bluetooth functionality, or is it optional? If it is required, could you please provide information on the ppm requirement for this crystal?&quot;en-USTelligent Community 13Mon, 19 Feb 2024 17:31:34 GMTRE: Optional 32.768kHz crystalhttps://devzone.nordicsemi.com/thread/469628?ContentTypeID=1Mon, 19 Feb 2024 17:31:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:711cf3e0-361d-484d-b70b-4dc69861da04AMarch<p>Thanks Michal.&nbsp; This was what I ended up using for the build.</p><div style="clear:both;"></div>RE: Optional 32.768kHz crystalhttps://devzone.nordicsemi.com/thread/469610?ContentTypeID=1Mon, 19 Feb 2024 16:26:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3d3386e2-9107-4c88-938f-6d52e8f68567Michal<p>Could you try to set <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.5.2/kconfig/index.html#CONFIG_CLOCK_CONTROL_NRF_SOURCE">CONFIG_CLOCK_CONTROL_NRF_SOURCE</a> to <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.5.2/kconfig/index.html#CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC">CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC</a>?</p> <p>Best regards,</p> <p>Michal</p><div style="clear:both;"></div>RE: Optional 32.768kHz crystalhttps://devzone.nordicsemi.com/thread/468887?ContentTypeID=1Wed, 14 Feb 2024 15:38:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bddcf2a1-6e28-462d-8971-21b16c2991feMichal<p>Hello,</p> <p>I will look into this and get back to you,</p> <p>Best regards,</p> <p>Michal</p><div style="clear:both;"></div>RE: Optional 32.768kHz crystalhttps://devzone.nordicsemi.com/thread/468125?ContentTypeID=1Thu, 08 Feb 2024 18:36:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4055e4aa-62cf-456d-ac26-8112c287febdAMarch<p>Can you supply the proper configuration for the prj.conf without a crystal? Is it better to use the RC or create a timer from the 32Mhz crystal?<br />A M</p><div style="clear:both;"></div>RE: Optional 32.768kHz crystalhttps://devzone.nordicsemi.com/thread/464872?ContentTypeID=1Thu, 18 Jan 2024 15:25:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8ab88dec-8807-46fc-a666-748b8576dd15Michal<p>Hello,</p> <p>No, the 32.768kHz crystal is not necessary for Bluetooth.</p> <p>Best regards,</p> <p>Michal</p><div style="clear:both;"></div>