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Altera_Forum
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18 years ago

Cyclone II I/O Output at Power Up!

Using a EP2C8F256C6 and found that during power up there is a 3.3V pulse coming out from the I/O pins. Pulse lasts for ~10ms. As I understand, during power up, pins should be tri-stated but I'...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

You have to configure the unused pins as input tristated. At power-up they won't produce any output signal.