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Altera_Forum's avatar
Altera_Forum
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9 years ago

Quartus message re output drivers

Quartus gives me a message about no output drivers on pins. I have tried putting the .alt driver on the pins, no difference. So what drivers am I supposed to put on the pins?? The quantity of usel...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Then when I try to create the vhd file I get loads of this warning series.

Warning (275016): Found Altera-specific megafunction, primitive or component "7400"

Error (275069): Design file contains illegal characters for Verilog HDL

Error (275069): Design file contains illegal characters for Verilog HDL

Error (275069): Design file contains illegal characters for Verilog HDL

The 7400 I am using is an Altera function. Why on earth would it have illegal characters in it?

There is no information given on how to resolve this, or where to find the problem.