[SOLVED]Driver 4.20b couldn't enumerate the J-Link Ultra

This site uses cookies. By continuing to browse this site, you are agreeing to our Cookie Policy.

  • [SOLVED]Driver 4.20b couldn't enumerate the J-Link Ultra

    Hi,

    The new driver 4.20b couldn't enumerate the J-Link Ultra!

    SEGGER J-Link Commander V4.20b ('?' for help)
    Compiled Sep 23 2010 16:08:00

    WARNING: Out of sync , resynchronising...


    WARNING: Out of sync , resynchronising...


    WARNING: Out of sync , resynchronising...

    Can not connect to J-Link via USB.
    J-Link>

    And a windows dialog:
    JLink.exe has encountered a problem and needs to close.
    We are sorry for the inconvenience.


    What's wrong with my J-Link ultra? Or just a bug of driver? ?(

    The post was edited 1 time, last by Taoist ().

  • I tried 4.20c, it still failed.

    The command window:

    SEGGER J-Link Commander V4.20c ('?' for help)
    Compiled Sep 24 2010 19:46:58

    WARNING: Out of sync , resynchronising...

    Updating firmware: J-Link Ultra Rev.1 compiled Sep 24 2010 17:28:29
    Replacing firmware: J-Link Ultra Rev.1 compiled Sep 7 2010 17:35:10

    The dialog information:

    New firmware: J-Link Ultra Rev.1 compiled Sep 24 2010 17:28:29
    Current firmware: J-Link Ultra Rev.1 compiled Sep 7 2010 17:35:10
    Starting bootloader...
    Waiting for emulator to detach... Timeout, assuming emulator has already re-enumerated.
    Waiting for emulator to attach... OK after 0ms.
    Sending firmware data...


    But the Driver 4.20a is OK.

    SEGGER J-Link Commander V4.20a ('?' for help)
    Compiled Sep 17 2010 19:01:02
    DLL version V4.20a, compiled Sep 17 2010 19:00:43
    Firmware: J-Link Ultra Rev.1 compiled Sep 7 2010 17:35:10
    Hardware: V1.00
    S/N:
    OEM: IAR
    J-Link>
  • Hi,

    the problem has been fixed in V4.20d which is planned to be released today.


    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.