https://devzone.nordicsemi.com/f/nordic-q-a/122256/help-needed-with-pwm-peripheral-on-custom-nrf54l15-boardHi, I have a custom board for the nRF54L15. I have already implemented LEDs and a button, which work fine. But I cannot get the PWM peripheral working, and I do not understand why. When I try to build my Zephyr project, I get a linker error and theen-USTelligent Community 13Fri, 13 Jun 2025 11:27:22 GMThttps://devzone.nordicsemi.com/thread/539186?ContentTypeID=1Fri, 13 Jun 2025 11:27:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dace74af-dd9d-4c12-9ce2-db15d06670a4Susheel Nuguru<p>You have this error</p> <p><strong><em>app/libapp.a(hw_init.c.obj): in function `hw_init`:</em></strong><br /><strong><em>C:/project.../src/HW/hw_init.c:38: undefined reference to `__device_dts_ord_30&#39;</em></strong><br /><strong><em>collect2.exe: error: ld returned 1 exit status</em></strong><br /><strong><em>ninja: build stopped: subcommand failed.</em></strong></p> <p>to know what that&nbsp;ord_30 is, you should look into&nbsp;&lt;build&gt;/zephyr/include/generated/zephyr/devicetree_generated.h and see what 30 represents in your build. Once you know what that is then you can see if you have that missing in your device tree or not.&nbsp; If that is PWM related make sure those are enabled</p> <p><pre class="ui-code" data-mode="text">CONFIG_PWM=y CONFIG_PWM_NRFX=y</pre></p> <p>You have shown me aliases but you have not shown how you have defined your pwm and pwm_buzzer. Can you please show what those look like in your devicetree files.</p><div style="clear:both;"></div>