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Steve-Mowbray-ENL's avatar
Steve-Mowbray-ENL
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2 years ago

Virtual Pin Assignments -- does Value=Off/On imply logic 0/1 for pin?

Probably dumb question but does setting a virtual pin value to ON imply that it will be at logic 1 state in the compiled design during user mode? For instance vpin1=1'b1 and vpin2=1'b0 resulting from...
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TingJiangT_Intel's avatar
TingJiangT_Intel
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2 years ago

Hi there, may I know why you need to know the initial value of the virtual pins. Do you need to do simulation?

Virtual pin usually used to do some optimization in timing and resources usage, so normally it won't be the final version of your design.


  • Steve-Mowbray-ENL's avatar
    Steve-Mowbray-ENL
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    2 years ago

    top level file is reused between multiple projects on different target hardware -- we can reuse the top level file with virtual pins on lesser hardware so long as the state of the virtual pin is fixed known in the lesser hardware project -- improved hardware will have the pin as physical and the state will come from external source