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Capture CIS netlist error to PCB Editor

SharonPaige

My schematic has a part U12 with duplicate pin names like GND on pins 2 and 4.  When trying to create an Allegro PCB Editor netlist, I get an error message "Duplicate Pin Name "GND" found on Package LT3009_2, U12 Pin number 2: .....Please renumber one of these.  I have done this in many previous schematics and can netlist fine into OrCAD Layout but the netlist into PCB Editor aborts and says to please correct the above error and retry.  Is this duplicate pin name situation not allowed in Allegro? We are new to Allegro...

 Thanks,

Sharon

  • Prasanna

    Sharon,

    Yes, this is not allowed in allegro.  If duplicate pin is creating the problem then change the name of the pins like  GND1, GND2 for remaining ground pins, it works without any error. Ans also keep in mind that all pins ahould be numbered properly.

    Hope this helps....

     Thanks,

    Prasanna Hegde

  • SharonPaige

    Prasanna,

    Thanks for your reply.  Funny thing, Capture allowed duplicate power names in the same schematic.  I changed the ground names and all was well.

     -Sharon

  • steve

    If the pin type is power then capture will allow duplicate pin names. If it is not then you will get the duplicate pin names error.

  • John Davies

    steve said:

    If the pin type is power then capture will allow duplicate pin names. If it is not then you will get the duplicate pin names error.

     

    That's interesting. I had to rename several unconnected pins on a header recently so that their names were not all NC but presumably could have avoided that if I had redefined them as power pins. Would that have any undesirable side-effects? Or would the NC property be better? I don't want to hide the pins.

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