mowbly
Posts: 2
Joined: Fri Feb 23, 2024 8:59 am

RP2040 what to do with unused USB pins

Fri Feb 23, 2024 9:14 am

Hi all,
I'm designing a board with the RP2040 but am not including USB, what should I do with the USB_DP and USB_DM pins in the design?

Apologies in advance if this is written somewhere I've gone through the RP2040 datasheet and hardware design guide but couldn't find any reference to it.

hippy
Posts: 16120
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: RP2040 what to do with unused USB pins

Fri Feb 23, 2024 11:14 am

The USB pins are unconnected when no USB cable is plugged in so you can leave them unconnected. I would recommend running them to holes for header pins or test points in case you do find a USB connection useful during development.

mowbly
Posts: 2
Joined: Fri Feb 23, 2024 8:59 am

Re: RP2040 what to do with unused USB pins

Fri Feb 23, 2024 12:03 pm

Great thanks a lot for the reply. Running them to some test points sounds like a pretty good idea, thanks for the help.

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