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Altera_Forum's avatar
Altera_Forum
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16 years ago

Pins not used

Hi,

I'm new with Quartus and I have a question. I have a design where i use 7 4-pins NAND gates connected to one 8-pins NAND gate. When I'm trying to compile, it doesn't work because of the pin not connected in the 8-pin NAND gate. My question is, what should I do with that unused pin? How should I connect it?

Thank you very much for your help.

1 Reply

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

    You can make an 8 input NAND gate function as a 7 input NAND gate by tying the unused input high.