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Altera_Forum's avatar
Altera_Forum
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12 years ago

error: jtag chain problem detected

Having an issue programming. When i click start to begin programing this is the following error message i get. i have version 13 free web edition on windows 8. im using a max7032aelc44-10. any help is much appreciated. error: no device detected

error: jtag chain problem detected

error: tdi connection to the first detected device unknown_1 might be shorted to gnd

error: the tck and tms connections to the device before the first detected device unknown_1 might have a problem

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    Check the JTAG connections from your programming header to the device are correct.

    Check your CPLD is powered correctly - with the board powered take a multimeter round the power pins (there aren't many). All the power pins must be powered correctly.

    Is this a board you've built yourself? If so, the programming errors may well be guiding you to a build fault - a solder splash or short.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    Also make sure you've got the pull-ups in there according to Altera's reference design. Sounds indeed like a physical problem.

    -Mux