[SOLVED] JLink fails to connect to i.MX6ULL on i.MX6ULL EVK

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  • [SOLVED] JLink fails to connect to i.MX6ULL on i.MX6ULL EVK

    Hi!

    I'm trying to connect my JLink to the NXP i.MX6ULL EVK. Unfortunately this fails for now. Here the current log:

    $ JLinkExe -device MCIMX6Y2 -if JTAG -speed 1000 -JTAGConf -1,-1
    SEGGER J-Link Commander V6.60d (Compiled Jan 9 2020 17:47:03)
    DLL version V6.60d, compiled Jan 9 2020 17:46:47

    Connecting to J-Link via USB...O.K.
    Firmware: J-Link V11 compiled Jan 7 2020 16:52:13
    Hardware version: V11.00
    S/N: 51000154
    License(s): GDB
    VTref=3.333V

    Type "connect" to establish a target connection, '?' for help
    J-Link>con
    Device "MCIMX6Y2" selected.

    Connecting to target via JTAG
    ConfigTargetSettings() start
    J-Link script: Setting up AP map
    ConfigTargetSettings() end
    TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    ConfigTargetSettings() start
    J-Link script: Setting up AP map
    ConfigTargetSettings() end
    TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    ConfigTargetSettings() start
    J-Link script: Setting up AP map
    ConfigTargetSettings() end
    TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    ConfigTargetSettings() start
    J-Link script: Setting up AP map
    ConfigTargetSettings() end
    TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    Cannot connect to target.

    I already read this thread here:
    [SOLVED] J-Link cannot connect to i.MX6ULL target

    Here at least some JTAG infos are printed. In my test above not. I also checked the EVK board revision, if I need to change some resistors:
    wiki.segger.com/IMX6ULL-EVK

    But my board is not a revision one board. Its a rev "C3".

    I also tried all different MCIMX6Yx devices (Y0, Y1, Y2, Y7), without any change.

    What am I missing in my setup? Do you have any hints?

    Many thanks,
    Stefan
  • Hi Stefan,
    Thank you for your inquiry.
    We received your email via our support system and we will get back to you there, since you are still in support period.

    We will close this thread to keep communication to one channel,
    to make sure no information gets lost that way.

    Please keep communication to one channel for further cases.

    Best regards,
    Fabian
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