nRF52840-PDK USB not recognized

[pbirkner]

Hi,

I am attempting to run the various USB example programs on the nRF52840-PDK USB, but my nRF usb device is not being recognized (in windows OR linux device tree). Is there anything I need to change on the dev board itself? I have tried running various examples, and I don't see why I would be having trouble with the USB HID devices.

Thank you!

[bjorn-spockeli]

You are connecting the nRF52840 PDK to your computer through the nRF USB connector and not the one USB connector that goes to the interface MCU?

[pbirkner]

Yes, I am connecting through the nRF USB. Thank you.

[bjorn-spockeli]

OK, so NRF Power Source(SW9) is is set to VDD and SW6 is set to Default. If I flash the USB HID Generic Example to the nRF52840 PDK, then a mouse (nRF52 USB HID generic Demo) is added under Devices and Printers in Windows 7 .

[pbirkner]

I've tried this all with no luck. The program flashes fine, but I've tried plugging it into multiple Windows 7 machines and always get the same error: Error Code 43, USB device not recognized.

[bjorn-spockeli]

Are you using one USB cable to flash the nRF52840 and then you re-connect it to the nRF USB connector? Or are you using two separate cables?