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Altera_Forum's avatar
Altera_Forum
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17 years ago

Output Pins stuck at VCC or GND

Hi all. I've just finished writing and simulating a program which functions as a calculator.. However upon compiling the program, there is this warning which says: "Output Pins stuck at VCC or ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

My previous statement wasn't fully correct. Pins not assigned to a design top port are treated according to the designs unused pin rule, but not reported with the said stuck-to message. The message appears with port pins driven intentionally or unintentionally by a constant driver. If the output is expected not to have constant output, the logic should be corrected.