Can not execute firmware update

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  • Can not execute firmware update

    I am running Debian, and have been using J-Link Commander V4.69b for some time, without issue. Today, I downloaded the 64-bit DEB of the latest version (V4.78d) and installed it. When I ran JLinkExe, it attempted to update the firmware, but seemed to be unsuccessful.

    Source Code

    1. SEGGER J-Link Commander V4.78d ('?' for help)
    2. Compiled Oct 18 2013 19:18:43
    3. Updating firmware: J-Link ARM V8 compiled Sep 20 2013 15:09:45
    4. Replacing firmware: J-Link ARM V8 compiled Nov 14 2012 22:34:52
    5. New firmware booted successfully
    6. Communication timed out - Can not execute firmware update
    7. J-Link>


    After attempting to update, I can no longer communicate with the J-Link at all, I always get a connection error.

    Source Code

    1. SEGGER J-Link Commander V4.78d ('?' for help)
    2. Compiled Oct 18 2013 19:18:43
    3. Can not connect to J-Link via USB.
    4. J-Link>


    The device seems to be enumerated fine, and shows up in lsusb.

    Source Code

    1. [ 1681.047459] usb 1-1.2.2: new full-speed USB device number 6 using ehci-pci
    2. [ 1681.157462] usb 1-1.2.2: New USB device found, idVendor=1366, idProduct=0101
    3. [ 1681.157473] usb 1-1.2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    4. [ 1681.157479] usb 1-1.2.2: Product: J-Link
    5. [ 1681.157483] usb 1-1.2.2: Manufacturer: SEGGER
    6. [ 1681.157487] usb 1-1.2.2: SerialNumber: 123456


    Source Code

    1. Bus 001 Device 005: ID 1366:0101 SEGGER J-Link ARM


    However, I can't connect to it. I have also tried running JLinkExe as root, to no avail. I would try an older version of the software, but I cannot seem to find any downloads for old Linux versions, and I do not have access to a Windows installation that I can test with.

    EDIT: Additionally, the LED on the device appears to behave the same as before, blinking quickly momentarily, then becoming solid.
  • Hi,

    The firmware that comes with V4.78d is fine.
    We will check if we can reproduce any problems with the firmware update process under Linux.


    Best regards
    Alex
    Please read the forum rules before posting.

    Keep in mind, this is *not* a support forum.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support you can contact us via our support system: segger.com/ticket/

    Or you can contact us via e-mail.
  • Hi,

    We have found the problem (only happened under special circumstances)
    and will fix it in the next version, planned for the end of this week.


    Best regards
    Alex
    Please read the forum rules before posting.

    Keep in mind, this is *not* a support forum.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support you can contact us via our support system: segger.com/ticket/

    Or you can contact us via e-mail.