nRF52 USB CDC driver install fails in Windows 8.1 Pro

RE: nRF52 USB CDC driver install fails in Windows 8.1 Pro

Krishnarao — Tue, 09 Jun 2020 04:36:52 GMT

Hi Edvin,

I have installed nRF Connect for Desktop as per Stian's suggestion and the driver "nRF Connect USB CDC ACM" included in nRF Connect for Desktop works and unblocks me for testing

Thanks,

Krishna.

RE: nRF52 USB CDC driver install fails in Windows 8.1 Pro

Edvin — Mon, 08 Jun 2020 13:21:42 GMT

Hello Krishna,

Unfortunately, I don't have access to a Windows 8.1 computer.

Can you please try the suggestions that Stian provides in this thread:

https://devzone.nordicsemi.com/f/nordic-q-a/41853/usb-driver-install-fail-on-window-7-8-nrf52840-nordic_cdc_acm-inf

Best regards,

Edvin

RE: nRF52 USB CDC driver install fails in Windows 8.1 Pro

Krishnarao — Mon, 08 Jun 2020 12:32:50 GMT

Hello,

Thanks for your reponse.

I performed same test on another PC where I have Windows 10 and found no issue. When I plug the cable, the USB is getting recognized automatically and COM port is popping up.

I also tried resetting COM ports as per your suggestion, but no luck.

Is it possibe for you to perform the test on Windows 8.1 at your end?

Thanks,

Krishna

RE: nRF52 USB CDC driver install fails in Windows 8.1 Pro

Edvin — Mon, 08 Jun 2020 12:02:27 GMT

Hello,

Have you used the same DK with another USB example? Perhaps the computer has cached some old USB settings for that COM port that aren't compatible with the driver you are trying to use now?

Is it possible to test with either another computer or another DK to see if that is the issue? Alternatively, you can try to reset the COM ports. I am not entirely sure how to do this, but perhaps this thread is a good start.