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Altera_Forum's avatar
Altera_Forum
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15 years ago

Some answer for a beginner please

Hello, I've just bought an Altera BAIXUN on eBay. It is an Atera Cyclone EP1C6T144C8. Can you give me some answer ? Can I program it in VHDL without "USB Blaster" ? I have only USB cable. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

if your design looks like resetting all the time, it might be caused the wrong unused pins setting. by default quartus II grounds all the unused pins which might not be all right if you have some connections to other devices on board.

go to assignment->settings. find "device and pin options" and under "unused pins", set them as "input tri-stated"