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Altera_Forum's avatar
Altera_Forum
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12 years ago

Cyclone V - JTAG ID Error - download failed

Hi, I meet JTAG error while downloading the .sof file to the FPGA via "Programmer". It says that the JTAG Id isn't what the Programmer was expecting for. I use Cyclone V devloppement kit...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Interestingly I have got a what I think is a new Cyclone V GT development board because it has the updated silicon and it reported a JTAG speed of 24MHz.

I have now issued the config --setparam to 16MHz and see if that makes a difference, oddly it does work but not reliably - SignalTap usually causes it to go wrong.