https://devzone.nordicsemi.com/f/nordic-q-a/59646/sdk16-s112-52810-can-t-boot-after-power-off-and-on-againSDK16, S112, 52810. I have DCDC set up and external 32.768 crystal oscillator on my board. Here is my code part: main() nrf_power_dcdcen_set(true); nrf_delay_ms(100); // Initialize. log_init(); timers_init(); power_management_init(); ble_stack_initen-USTelligent Community 13Tue, 31 Mar 2020 00:51:33 GMThttps://devzone.nordicsemi.com/thread/242564?ContentTypeID=1Tue, 31 Mar 2020 00:51:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93a1ee72-b5f1-4c84-bb03-593a8fc577fdkfcube<p>Any further suggestions? Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242408?ContentTypeID=1Mon, 30 Mar 2020 12:31:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f05efb67-db18-45b7-9b0c-c931f04a9f84haakonsh<p>Does it work if you only comment out the DCDC part or the LF_SRC part?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242390?ContentTypeID=1Mon, 30 Mar 2020 11:56:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0d7cd253-e0e6-4495-a1f4-39665b6c73e1kfcube<p>Well, it does work after I comment out the DCDC part, and changed the&nbsp;NRF_SDH_CLOCK_LF_SRC to use&nbsp;NRF_CLOCK_LF_SRC_RC.&nbsp;I don&#39;t have a&nbsp;<span>oscilloscope. So you think that&#39;s the hardware issue than the code side?&nbsp;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242386?ContentTypeID=1Mon, 30 Mar 2020 11:47:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:185280e2-dbdf-45ac-9b5e-592497778e15haakonsh<p>Do you have any logs, or any data at all as to where the code stops executing?&nbsp;<br /><br />You can monitor the LFXO line with an oscilloscope to verify its operation.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242382?ContentTypeID=1Mon, 30 Mar 2020 11:40:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bcfc33f6-cb11-469f-b26e-885299ebb052kfcube<p>the&nbsp;<span>schematics is exactly&nbsp;the same as the 52810 spec</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242381?ContentTypeID=1Mon, 30 Mar 2020 11:38:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8a554df9-6379-435f-83f1-223b18985ecckfcube<p>The sensor part means those code that deal with external sensors which the 52 DK doesn&#39;t have, that&#39;s why I said (do not include the sensor part). Did you really read my questions? My code works fine on the DK and my board, but just doens&#39;t work after power off/on. I need to know is it because of the DCDC or the crystal oscillator? The board hardware design is exactlly the same as the 52810 spec. So I don&#39;t think its the hardware issue. It should be something wrong on the code side. Does that make sense? I am not sure if you understand my questions.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242378?ContentTypeID=1Mon, 30 Mar 2020 11:32:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:032557e8-ae8e-4fd3-9d69-103ed85f9c79haakonsh<p>the sensor part?<br /><br />Have you had your schematics and layout reviewed by anyone?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242371?ContentTypeID=1Mon, 30 Mar 2020 10:56:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e3ccff58-6587-4492-a78f-55bc81cdde13kfcube<p>Any suggestions? Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242351?ContentTypeID=1Mon, 30 Mar 2020 09:53:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9c4594a1-a3f3-4b0f-a6be-41bc26649385kfcube<p>It does, if do not include the sensor part.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/242339?ContentTypeID=1Mon, 30 Mar 2020 09:33:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b83b455-cff8-4efa-8d08-a07284b3ed5chaakonsh<p>Does the code work on the DK?</p><div style="clear:both;"></div>