[SOLVED] How to program target with JTAG isolator

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  • [SOLVED] How to program target with JTAG isolator

    Hi,

    I recently purchased the Segger JTAG isolator product and have been unable to use it with my J-Link to program my target. When I program via J-Flash (or debug via GDB), I get the error:

    Could not establish a connection to target.
    - ERROR: Could not auto program target, not connected

    I assume that the VTref is not passed back through from the target due to the isolator, but how do I defeat this check to allow the tools to run?

    Thanks,
    Wyatt

  • Hello Wyatt,

    Thank you for your inquiry.
    Did you follow the steps described on our website? segger.com/products/debug-prob…ors/j-link-jtag-isolator/
    Sections "Using the Isolator with J-Link" and "Preparing J-Link to Supply Power" are important here.


    Best regards,
    Nino
    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.

  • Hello Wyatt,

    Great to hear that you are up and running again.
    This thread will be closed now.

    Best regards,
    Nino
    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.