https://devzone.nordicsemi.com/f/nordic-q-a/40399/nrf52840-as-usb-to-uart-bridgeI am working on a custom board with two MCUs, one nRF52840 and one older MCU. In the previous iteration of this PCB the old MCU was connected to USB through an FTDI FT232 and flashing was done though USB using the UART bootloader that comes pre-loadeden-USTelligent Community 13Tue, 12 Mar 2019 07:27:25 GMThttps://devzone.nordicsemi.com/thread/175523?ContentTypeID=1Tue, 12 Mar 2019 07:27:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5029d70b-0fdc-4c48-9743-035c05f8ca77ovrebekk<p>Hi Erland</p> <p>Sorry for the slow reply, I lost track of this case unfortunately.&nbsp;</p> <p>Did you manage to combine the endpoints as you wanted, or do you still need help with this?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/157724?ContentTypeID=1Fri, 16 Nov 2018 13:14:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:580ff80c-5f4f-4e66-ab71-0faa73151183Erland<p>Great! How would I go about assigning endpoints to set this up?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/157267?ContentTypeID=1Wed, 14 Nov 2018 11:20:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:453a59e0-95fd-4b51-ba2b-f47e7c32b9abovrebekk<p>Hi Erland</p> <p>It is possible to have the nRF52840 enumerate two different com ports if you wish.&nbsp;</p> <p>One you can connect to the physical UART interface, to act as a bridge to your second controller, and the second one you can use to access the nRF52840 device itself.&nbsp;</p> <p>The USB stack will allow you to assign the 14 bulk/interrupt endpoints freely, and as long as you don&#39;t run out of endpoints you can add more USB classes.&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>