Problem with uploading ossc firmware with TJAG

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  • Author
    Posts
  • #34726
    croc
    Participant

    Hello everyone,

    I just assembled one of the boards.

    I try to upload the firmware but when I upload the file it fails directly. I get the error first “Error (209040): Can’t access JTAG chain
    ” following up with “Error (209012): Operation failed” then I get this “Info (209061): Ended Programmer operation at Wed Jan 22 01:24:25 2020”

    Then I try to do an autodetect and I get this image.

    Error

    error during test

    What can I do to resolve this ? Already thank you for your reply.

    • This topic was modified 8 months ago by croc.
    #35290
    marqs
    Participant

    I’d check the JTAG lines (TCK, TMS, TDI, TDO) for any short-circuits or missing pull-ups/downs as shown in the schematic.

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