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Altera_Forum
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15 years ago

using virtual pins to prevent optimization of unconnected ports

Hi, How does one declare a virtual pin? At the module i/o declaration or at the time of instance? My guess was declaring it at the time of instantiating a module. But that did not work in qu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What I tend to do is put a single wildcard assignment of "*" to Virtual in the assignment editor. This, in effect, makes sure that all pins not explicitly bound to a certain physical pin will be preserved as virtual pins and will not be optimised out.