Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

HELP ME about EP2C20Q240C8,PLEASE!

HI ALL I'm using the cycloneII(EP2C20Q240C8).I want to know what the difference the pin 178 and the others.when i use the pin 178 as LVTTL output,it cannot output a wave (frequency about 25MHz whe...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

You didn't say a word about SignalTap in your original post! Did you check at all, if the pin is working correct without connecting SignalTap logic to it? If so, it's a completely different topic in my opinion.