Windows not recognizing nRF52840 DK when connected via USB

RE: Windows not recognizing nRF52840 DK when connected via USB

Naeem Maroof — Tue, 22 Nov 2022 16:04:06 GMT

Hi Royce,

As you have updated windows as it solved some of the issues, could you do a fresh installation of everything (nrf command line tools, VS Code and NCS using nrf-connect-desktop).

You may follow this guide: nRF Connect for VS Code, 1: Installation - YouTube

Thanks,
Naeem

RE: Windows not recognizing nRF52840 DK when connected via USB

RoyceThomas — Tue, 22 Nov 2022 09:11:33 GMT

Hi Naeem,

The JLink driver version is 1.34.0.44950 and the nrf connect version is 3.12.0. I tried updating all of them but no luck.

RE: Windows not recognizing nRF52840 DK when connected via USB

Naeem Maroof — Mon, 21 Nov 2022 20:24:03 GMT

Hi Royce,

Good to know that updating the OS fixed some of the issues.

Which Jlink version and nrf connect version you are using? You can try updating these as well.

Thanks,

Naeem

RE: Windows not recognizing nRF52840 DK when connected via USB

RoyceThomas — Mon, 21 Nov 2022 13:51:52 GMT

Hi Naeem,

Thanks for the reply. I updated my windows OS and found that now my device is getting recognized by the nrf programmer and I can flash using the programmer tool.

But, the board gets disconnected when I try to flash using nrfjprog or from nrf Connect for VS Code. Even if I try "nrfjprog --deviceversion" the board gets disconnected. After that, I have to close nrf connect for desktop, toolchain manager, etc, and reconnect the board to the PC.

Don't know if it helps, but I was able to communicate with the board using the JLink commander tool. Are there any useful JLink commander commands that might be helpful to debug the issue further?

I don't know what is causing this weird issue. Please help.

Thanks,

Royce

RE: Windows not recognizing nRF52840 DK when connected via USB

Naeem Maroof — Fri, 18 Nov 2022 13:39:54 GMT

Hi Royce,

Thank you for contacting DevZone at NordicSemi.

Sorry to hear that you are struggling to connect a DK with you PC (let's call it PC1) and thank you for trying different solutions.

As per your information:
1) the cable is good (no problem in that)
2) software installation is good / updated (no problem in that)
3) connecting DK to other PC (let's call it PC2) is good
4) connecting another DK shows same issues

As per #3, the DK as well as the PC2 are good

for #4, you are connecting a different DK to PC1? if this is the case then it confirms that the problem is not with the DK and infact with your computer (PC1). I am not sure what problem it is, but could be USB port and/or driver issue.

Other things which you could try (at your own choice) are:
-update you windows operating system
-update your device drivers
-restart your pc
-hook DK into another USB port (if available)
-check software & driver on both PCs are same

What do you mean by "possibility to reset the board"? You have already updated MCU firmware.

with regards,
Naeem