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Altera_Forum
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13 years ago

Cyclone IV configuration problem

Hi All, I have a problem with a Cyclone IV device not working correctly on my own hardware PCB. If I connect to the board using a USB blaster cable, Quartus can see the device correctly. I...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Are you using a part with an exposed pad on the bottom? I've seen this type of behavior when the pad is not connected to ground. In particular the CONF_DONE at ~1V is a tip-off.