USB can't print debug log

[skylin008]

Thank you shared this impressive project. I had finished the new schematic and PCB from your schematic. Attatch the schematic and PCB( kicad ), but when plug the usb, it can't found the new device from Device management(Win 10),How to solove this issue. Thanks!
GPSDO_V10.pdf

[skylin008]

Attatch the pcb file(Kicad)
Precision_GPSDO_PCB.zip

[skylin008]

I used the platformIO

[ZsZs73]

I know that you openned this issue long ago, but on the Weact Blackpill schematics there are 10k resistors between PA11/PA12 and the USB connector. Is there any reason why you've left them out?

edit: forget about this, just realized that these resistors are 10 Ohm instead of 10k
btw, I like your pcb design. Have you made it work?

[ZsZs73]

@skylin008 not sure that you are checking this, but the SBU1 and SBU2 pins of the USB connector are grounded on your schematic. Afaik they should be left floating if not used.