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Honored Contributor

15 years ago

Error: Can't access JTAG chain

When i try to program the FPGA cyclone III i get this error : error: can't access jtag chain error: operation failed. I am using a FPGA cyclone III .I would be able to program it a few months...

Altera_Forum

Honored Contributor

15 years ago

There can be a lot of reasons. Power supply, unconnected pin, missing pull-up... You can start with the JTAG chain debugger (described on pages 20-20 to 20-29 of the programmer datasheet (http://www.altera.com/literature/hb/qts/qts_qii53022.pdf)).

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Error: Can't access JTAG chain

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