nRF9151DK Loading Boards Issue in VSC

[NautDesigner]

Trying to work with the nRF9151DK and having lots of issues flashing, seeing RTT output and just connecting in general.  Most of the time several sections of Visual Studio Code just show as spinning until the nRF9151DK is powered off. When trying to view RTT output, it says the board isn't recognized and asks me to select from a list of boards and only selecting the nRF9160 shows output. The J-Link version is V7.94i VSC is up to date as are the Nordic extensions.

Any ideas on how to get this working correctly?

Settings sync is suspended temporarily because the current devices is making too many requests. Please restart VSC to resume.

[Øyvind]

Hello, 

Have you enabled logging over RTT in your application? A quick test on my side, just connecting to RTT with my nRF9151DK in VS Code, I get this output when choosing memory address automatic. 

Mine does not load any boards as yours does. Could you please elaborate more on what that is? 

Thanks! 

Kind regards,
Øyvind

[NautDesigner]

Yes, RTT output works but only when selecting the 9160. It won't automatically connect. 

The main issue is that VSC just shows spinning icons everywhere when when nRF9150 is turned on first and then VSC is opened. "Loading boards..." on the status bar never stops.

[NautDesigner]

I have the JLinkCDC, yes, but not the other one.

[Øyvind]

Could you please try reinstalling JLink drivers, and making sure that "legacy USB drivers for J-Link" is checked

[NautDesigner]

I needed to follow this post to see and check the legacy drivers box:

(2) J-Link legacy USB driver required on Windows for some DK boards - Nordic Q&A - Nordic DevZone - Nordic DevZone

However, I still don't see that second JLink USB package. I've uninstalled everything and reinstalled just the JLink drivers. 

I've tried with V7.94i and V8.10j.

[Øyvind]

Still looking into this. Wil update when I know more.

[Øyvind]

Hello, thanks for your patience with this. 

There seems to be an issue with nrfutil device, where it uses the wrong name for the nRF9151. This will be fixed in a future version. 

Our team presented two possible workarounds for this, depending on the J-Link DLL version used:

• If version v7.94m or newer is used, the nRF9151_xxCA can be selected manually in the device selection screen.
• For older versions of the J-Link DLL, selecting CORTEX-M33 or one of the other nRF91xx devices should work, the correct device selection is more relevant for flashing, for RTT it should be fine with a slightly wrong one as well.

Hope this helps while waiting for the fix.

Kind regards,
Øyvind