Unable to flash / debug device based on nRF52840 with J-LINK in the nRF Connect SDK (VS Code)

[Jev]

Hi, 

I am completely new to the nRF Connect SDK and trying to get used to it and having trouble with flashing / debugging the device using J-Link.

It shows the J-Link in the Connected Devices as 50117619, and displays the correct MCU, I can recover, and erase the device without issues, but when comes to flashing it gives me the error mentioned below. As well as it showing J-Link as J-Link in the nRF Programmer app.

The following error in the Terminal:

Flashing build to 50117619
C:\Windows\system32\cmd.exe /d /s /c "west flash -d c:\Nordic\MyApps\MyCentral\build --skip-rebuild -i 50117619"

-- west flash: using runner jlink
FATAL ERROR: required program JLink.exe not found; install it or add its location to PATH

Where and how should I add the PATH for the JLink.exe, please? Why it is so complicated?

Hardware: Adafruit Feather nRF52840 Express

SDK: nRF Connect SDK v2.3.0

Programmer: J-Link Base

Thanks,
Jev

[Karl Ylvisaker]

Hello Jev,

The nRF Command Line Tools should be setup and added to path as part of your toolchain installation (through the Toolchain Manager), but perhaps something failed during the install.
Are you able to run commands such as nrfjprog --version from a cmd terminal?

Could you download the nRF Command Line Tools from here, and re-install them to see if this resolves the issue?

Best regards,
Karl

[Jev]

Hi Karl,

Yes, I can run the commands.

nrfjprog --version command gives the following in reply:

nrfjprog version: 10.19.0 external

JLinkARM.dll version: 7.80c

How could I add the path, please?

Thanks,
Jev