https://devzone.nordicsemi.com/f/nordic-q-a/117385/how-to-approach-to-solve-the-problem-about-irq-multiple-registrationsI want to set serial communication over USB and try to implement CDC ACM functions on nrf52840dk-nrf52840. prj.conf: .overlay: But now, build on NCS v2.7.0 stops with the following error: gen_isr_tables.py: error: multiple registrationsen-USTelligent Community 13Thu, 19 Dec 2024 14:11:28 GMThttps://devzone.nordicsemi.com/thread/515765?ContentTypeID=1Thu, 19 Dec 2024 14:11:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:026d2e71-9022-4e31-af7c-d3dd781bd17eAmanda Hsieh<p>Happy to know you fix it. <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/515625?ContentTypeID=1Thu, 19 Dec 2024 02:13:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:31b8ba0d-48e4-4341-b2f5-b8e1fe04fd16hiro.maezawa<p>Hi,&nbsp;</p> <p>Thanks for your reply.</p> <p></p> <p>I configured only:&nbsp;</p> <p>CONFIG_USB_DEVICE_STACK=y</p> <p></p> <p>The posted case does not match completely, but it gave&nbsp;me big hints.</p> <p>I configured also:</p> <p>CONFIG_UDC_DRIVER=y</p> <p>It may be for the &#39;New USB device support&#39; and I think some of settings are duplicated with current drivers.</p> <p>This configuration tells me an experimental symbol warning.</p> <p>My build is successfully finished with eliminating this configuration.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/515590?ContentTypeID=1Wed, 18 Dec 2024 19:30:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b0688c99-bbe5-4477-bd24-b1086e2e66acAmanda Hsieh<p>Hi,&nbsp;</p> <p>Hope <a href="https://devzone.nordicsemi.com/f/nordic-q-a/108110/irq_connect-duplicate-issue/467823">this post</a> can help.&nbsp;</p> <p>Regards,<br />Amanda H.</p><div style="clear:both;"></div>