nRFconnect Desktop prerequisites

Documentation and install should include prerequisite 

Segger J-link which has as a prerequisite Java

  • Hi Dennis,

    I did not see any prerequisite for java on the Segger J-Link Product page.

    I also test the Programmer app of nRF Connect Desktop after uninstalling Java runtime on my Windows PC, and I do not have problem programming firmware to the DK board.

    Can you provide more information about the issue you have encountered? It might be caused by other reasons.

    Best regards,

    Charlie

  • 0
    216 pts.
    in reply to Charlie

    Thanks for your response.

    FIrsrt error is Failed to get the library versions: JLINKARM_DKK_COULD_NOT_BE_OPENED

    I am on a Apple MacBookPro, M1 processor and it does not come with java installed. 

    When I started j-link it reports

    The operation couldn't be completed. Unable to locate Java Runtime .

    Please visit http://www.java.comfor information on installing Java

  • Hi Dennis,

    I test the Programmer app of nRF Connect Desktop after uninstalling Java runtime on a Mac Air(M1). I can program DK board without any issue. This means J-Link driver should work properly without Java runtime.

    How did you start J-Link?

    Which step did the first error appear in?  

    Best regards,

    Charlie

  • 0
    216 pts.
    in reply to Charlie

    Sorry I though the prerequisites were known I would have provided a better case description.

    When I start nRF Connect for Desktop v3.9.3, then click on RSSI viewer the log window at the bottom reports in red:

    Failed to get the Library versions: : JLINKARM_DKK_COULD_NOT_BE_OPENED (Origin Failed to get module versions"

  • Hi Dennis,

    I got the following logs without connecting any device:

    15:01:46.798	Using @nordicsemiconductor/nrf-device-lib-js version: 0.4.1
    15:01:46.799	Using nrf-device-lib version: 0.9.8
    15:01:46.799	Using nrfjprog dll version: 10.15.1
    15:01:46.799	Using JLink version: 7.58e
    15:01:47.287	Application data folder: /Users/charlie/Library/Application Support/nrfconnect/pc-nrfconnect-rssi

    macOS Monterey 12.1

    Best regards,

    Charlie

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