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Windows Subsystem for Linux (WSL) is a part of Windows 10, that allows the user to run Linux applications on Windows.

J-Link specifics

As of now WSL does not fully support USB devices.

In order to connect to a J-Link from WSL you either have to use the Ethernet / WiFi interface (if present, see Model overview) or make use of the J-Link Remote Server that runs on an another machine, capable of USB.

For more details please refer to the following article: Connecting to J-Link using J-Link Remote Server

Example setup with USB

J-Link Commander

In this example we will connect to our J-Link (connected via USB to the host) from WSL using the J-Link Remote Server on the host side and the J-Link Commander on the WSL side.



  1. Start the J-Link Remote Server in LAN mode on the Windows 10 host system and select the correct J-Link if prompted.
    J-Link Remote Server: Startup screen

  2. The J-Link Remote Server will now wait for incoming connections:
    J-Link Remote Server: Started and waiting for connections

  3. Switch to the command-line prompt of your WSL Linux system.
  4. Insert your target device and interface into the following command and execute it: JLinkExe -device <your-device> -ip localhost -if <target-interface> -speed 4000 -autoconnect 1
    • In this example we will connect to the NXP Kinetis K66 device on our emPower board, so the command would be as follows: JLinkExe -device MK66FN2M0XXX18 -ip localhost -if SWD -speed 4000 -autoconnect 1
  5. Now you should be able to make use of the commands of the J-Link Commander.
    J-Link Commander: Connected to an NXP K66 MCU