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Defining power supply symbols

markbeck

I'm trying to do something which is common in BiPolar analog design, but not as much in CMOS design.  I'm trying to figure out how to create a symbol which will allow me to define a net's connectivity when placed upon that net. 

For example:
I have a schematic and symbol which have VCC and VEE defined as ports (Note: they are defined as ports to make power supply modeling easier).  To make the schematic more readable, I wish to place instance symbols which represent VCC and VEE inside the schematic which will connect those nets to the actual VCC and VEE power ports.

I know that it is possible, and I think that it was done in the past using netset, but I can't seem to find any information about netset which doesn't pertain to defining a global power and ground supply (something that I do NOT want).

Any ideas?
Mark

 

Parents
  • markbeck

    Ok, while the above method worked, I was still getting warnings in the CIW when netlisting.

    I found that the nlAction = ignore needed to be added as a property to the schematic (It has no real effect inside the CDF parameters).  Then everything worked as desired (as far as I can tell today)

     sigh...

     

Reply
  • markbeck

    Ok, while the above method worked, I was still getting warnings in the CIW when netlisting.

    I found that the nlAction = ignore needed to be added as a property to the schematic (It has no real effect inside the CDF parameters).  Then everything worked as desired (as far as I can tell today)

     sigh...

     

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