https://devzone.nordicsemi.com/f/nordic-q-a/122076/ble---custom-board-configuration---devicetree-kconfigHi, I have created my own hardware with nRF54L15 – 2xLED, 2xPWM, and Radio (BLE). I am trying to create a custom board using the graphical wizard. LED and PWM seems to work – the project compiles, but I could not test it on hardware yet. Now, I wanten-USTelligent Community 13Fri, 06 Jun 2025 18:18:32 GMThttps://devzone.nordicsemi.com/thread/538468?ContentTypeID=1Fri, 06 Jun 2025 18:18:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6151cb6b-cea6-4df2-835e-8354288d61f5Hieu<p>Hello witc,</p> <p>Let&#39;s look at the two macro definitions that is&nbsp;mentioned in the error log. They are:<br /><a href="https://github.com/nrfconnect/sdk-zephyr/blob/v4.0.99-ncs1-2/modules/hal_nordic/nrfx/nrfx_config_reserved_resources_ncs.h#L63">https://github.com/nrfconnect/sdk-zephyr/blob/v4.0.99-ncs1-2/modules/hal_nordic/nrfx/nrfx_config_reserved_resources_ncs.h#L63</a><br />and<br /><a href="https://github.com/nrfconnect/sdk-zephyr/blob/v4.0.99-ncs1-2/modules/hal_nordic/nrfx/nrfx_config_reserved_resources_ncs.h#L85">https://github.com/nrfconnect/sdk-zephyr/blob/v4.0.99-ncs1-2/modules/hal_nordic/nrfx/nrfx_config_reserved_resources_ncs.h#L85</a></p> <p>You can see that one is nested under a <span style="font-family:&#39;courier new&#39;, courier;">#if defined(<a href="https://docs.nordicsemi.com/bundle/ncs-3.0.2/page/kconfig/index.html#CONFIG_BT_LL_SOFTDEVICE">CONFIG_BT_LL_SOFTDEVICE</a>)</span> and one is under a <span style="font-family:&#39;courier new&#39;, courier;">#if defined(<a href="https://docs.nordicsemi.com/bundle/ncs-3.0.2/page/kconfig/index.html#CONFIG_BT_LL_SW_SPLIT">CONFIG_BT_LL_SW_SPLIT</a>)</span>.</p> <p>It appears that your setup somehow enabled both of the two BLE Controller choices in the nRF Connect SDK (NCS), while only one can be enabled at a time.<br />In NCS, the default is the SoftDevice Controller, so only CONFIG_BT_LL_SOFTDEVICE should be set.</p> <p>Please review your files and see where&nbsp;those options are enabled, and if anything was set accidentally.</p> <p>Hieu</p><div style="clear:both;"></div>