https://devzone.nordicsemi.com/f/nordic-q-a/46613/recommended-softdevice-clock-configuration-using-rcIs there any documentation about how to configure the SoftDevice clock configuration using the RC as SoftDevice clock source? My target is the nRF52832 with the S132 Softdevice and no external 32kHz crystall. I configured the Softdevice with followingen-USTelligent Community 13Mon, 29 Apr 2019 09:25:20 GMThttps://devzone.nordicsemi.com/thread/184254?ContentTypeID=1Mon, 29 Apr 2019 09:25:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:280a6e1c-1a5e-4424-ac7d-3f5dfddb65f9Simon<p>I think the problem is that you have too high accuracy. As mentioned in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/29786/ble_hci_connection_timeout-and-nrf_clock_lf_xtal_accuracy_xx_ppm">this answer</a>,&nbsp;a high accuracy will lead to a smaller receive window and you will be more likely to miss packets. Due to&nbsp;<a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Ferrata_nRF52832_Rev2%2FERR%2FnRF52832%2FRev2%2Flatest%2Fanomaly_832_146.html&amp;cp=3_1_1_0_1_38">this errata</a>&nbsp;you should set the accuracy to 500ppm. Otherwise, the recommended configuration is to set&nbsp; <span>NRF_SDH_CLOCK_LF_RC_CTIV&nbsp;&nbsp;equal&nbsp;</span>16 (No need to calibrate more often than necessary since it will consume more power) and <span>NRF_SDH_CLOCK_LF_RC_TEMP_CTIV&nbsp; equal to&nbsp;</span>2.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>