https://devzone.nordicsemi.com/f/nordic-q-a/111824/multiple-uart-over-usbHi, I noticed all of your DK have multiple UART over the USB port. I believe some are from the nRF91 or nRf70 etc and some form the Segger module. For a new HW design I am wondering if following is possible: I would like to have 2 (or even 3) UARTen-USTelligent Community 13Tue, 11 Jun 2024 08:50:14 GMThttps://devzone.nordicsemi.com/thread/488255?ContentTypeID=1Tue, 11 Jun 2024 08:50:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a0444513-7551-49b0-b325-4a729c423d4fCharlie<p><span><span dir="ltr">One zephyr&nbsp;sample&nbsp;<a href="https://github.com/nrfconnect/sdk-zephyr/tree/v3.5.99-ncs1/samples/subsys/usb/cdc_acm_composite">sdk-zephyr/samples/subsys/usb/cdc_acm_composite at v3.5.99-ncs1 · nrfconnect/sdk-zephyr (github.com)</a>&nbsp;demonstrates how to get two virtual com ports on my USB connection.</span></span></p> <p><span><span dir="ltr">Best regards,</span></span></p> <p><span><span dir="ltr">Charlie</span></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/487558?ContentTypeID=1Wed, 05 Jun 2024 14:51:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ae46f274-2ac1-48ff-9d1a-a366d518506blseg<p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1717598997774v1.png" alt=" " /></p> <p><a id="" href="https://docs.nordicsemi.com/bundle/ug_nrf9160_dk/page/UG/nrf91_DK/hw_description/nrf9160_board_controller.html">https://docs.nordicsemi.com/bundle/ug_nrf9160_dk/page/UG/nrf91_DK/hw_description/nrf9160_board_controller.html</a><br /><br /></p> <p>So in this case it is the Segger that acts as an interface IC to translate 3 uarts to different com ports on the USB.<br /><br />Mmm, that IC is not an option for our board.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/487455?ContentTypeID=1Wed, 05 Jun 2024 09:10:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:54cfe09d-eaa3-485b-8f84-9d6fea1da944Charlie<p>Hi Luc,</p> <p>On most nRF DK boards, an interface IC works both as JLINK-OB and UART-USB converter on them.</p> <p>You can refer to this page about the design of nRF9160DK:&nbsp;<a href="https://docs.nordicsemi.com/bundle/ug_nrf9160_dk/page/UG/nrf91_DK/operating_modes/mcu_virtual_com_port.html">Virtual serial port (nordicsemi.com)</a>.</p> <p>Best regards,</p> <p>Charlie</p><div style="clear:both;"></div>