Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/f/nordic-q-a/95625/custom-nrf5340-board-not-start-and-fail-second-programHello, for our project we develop a custom board based on nrf5340 SoC by using Raytac module MDBT53. We design de board by using LDO module and external 32kHz (with external capacitors). The custom board files was written by copy and modify theen-USTelligent Community 13Wed, 25 Jan 2023 13:28:08 GMTRE: Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/thread/406465?ContentTypeID=1Wed, 25 Jan 2023 13:28:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:31853d98-5fc9-445f-ad14-b3634508cd51warcomeb-am<p>Hello Kazi,</p> <p>ok, I get it! Thank you!</p> <p>Best</p> <p>Marco</p><div style="clear:both;"></div>RE: Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/thread/406448?ContentTypeID=1Wed, 25 Jan 2023 12:29:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4684f406-5649-4f66-b51f-df727430c680Kazi Afroza Sultana<p><span><span dir="ltr">Hello Marco,</span></span></p> <p><span><span dir="ltr">Because enabling DCDC in the project file applied only for the application core image, but DCDC is needed to be disabled on the network core image as well.&nbsp;</span></span></p><div style="clear:both;"></div>RE: Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/thread/405783?ContentTypeID=1Fri, 20 Jan 2023 09:02:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:15d06d91-67f2-4032-96ed-945003e5da67warcomeb-am<p>Hello Kazi,</p> <p>My question is: why if I disable the DCDC only in the pro.conf the project doesn&#39;t work and instead if I disable the DCDC in the Kconfig file it works?</p> <p>Best</p> <p>Marco</p><div style="clear:both;"></div>RE: Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/thread/405782?ContentTypeID=1Fri, 20 Jan 2023 08:56:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6f2f42c2-84c1-44c2-ac2e-18cb3d21545fKazi Afroza Sultana<p>Hello Marco,</p> <p>It is correct that you have disabled the DCDC configuration in your application core. Based on the application, you need to do the same for network core child image, also for the MCUBoot image which enables DCDC converter if you are using a bootloader.&nbsp;</p><div style="clear:both;"></div>RE: Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/thread/404728?ContentTypeID=1Fri, 13 Jan 2023 08:28:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8a93416b-243d-4acc-bfa9-916a48318511warcomeb-am<p>Dear Kazi,</p> <p>I found the issue: when I copy the board files of nrf5340dk I didn&#39;t touch the Kconfig file where&nbsp;</p> <p><pre class="ui-code" data-mode="text">config BOARD_ENABLE_DCDC_APP bool &quot;Application MCU DCDC converter&quot; select SOC_DCDC_NRF53X_APP default y config BOARD_ENABLE_DCDC_NET bool &quot;Network MCU DCDC converter&quot; select SOC_DCDC_NRF53X_NET default y config BOARD_ENABLE_DCDC_HV bool &quot;High Voltage DCDC converter&quot; select SOC_DCDC_NRF53X_HV default y</pre></p> <p>And I added into pro.conf:</p> <p><pre class="ui-code" data-mode="text">CONFIG_BOARD_ENABLE_DCDC_APP=n CONFIG_BOARD_ENABLE_DCDC_NET=n CONFIG_BOARD_ENABLE_DCDC_HV=n</pre></p> <p>In this way I supposed the DCDC was disabled.</p> <p>Just for test, yesterday evening I changed to n each DCDC configuration into Kconfig file... and now it works without any problem!!&nbsp;</p> <p>Why?!?!&nbsp;</p> <p>Best</p> <p>Marco</p><div style="clear:both;"></div>RE: Custom nRF5340 board not start and fail second programhttps://devzone.nordicsemi.com/thread/404636?ContentTypeID=1Thu, 12 Jan 2023 16:07:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cfecf5b4-a8fc-4b8e-b904-425336582f17Kazi Afroza Sultana<p>Hello,</p> <p>Can you please share your schematic design of custom board with us?</p> <p>Thanks.</p> <p>Best Regards,</p> <p>Kazi Afroza Sultana</p><div style="clear:both;"></div>