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Replacing vias

budnoel

I have approximately 3000 vias on my board all with the same name.  I would like to change only a select group of vias in different areas of my board to a different via.  How can I select and change only those in those in those area without selecting and changing them individually one at a time?  Please help.  Thank you.

  • There is a SKILL program that has been around for a long time that can do just this.  It is located in the Allegro SKILL Library on the Cadence Support Site. 

    replace_via.il Replace Via padstack by window

    Hope this helps,
    Mike Catrambone
    Plexus Engineering Solutions

  • Hi Mike – I downloaded the replace_via.il and placed it with the rest of my skill files.  I am able to run all the other skill files but when I run the replace_via one it tells me “Command not found: replace_via”  I can’t for the life of me figure out what’s going on.  Any suggestions?
  • Hi,

    The command is “replace via” not “replace_via”  (Space instead of an underscore)

    One quick way to check is by searching thru the SKILL Code for the axlCmdRegister line which tells you what the Allegro command would be.

    axlCmdRegister("replace via"  `rplc_via)

    Hope this helps,

    Mike Catrambone
    Plexus Engineering Solutions
  • Ok. I’ve got the command correct now.  The command window is asking to “Enter a selection point”.  I window around the three vias I want to replace and then a pop-up window appears asking for the new padstack name.  I type in a new name and the command window indicates that “3 vias were replaced”  The vias remain unchanged however.  I query them and they are still the same.  What am I doing wrong?

    Bill Noel

    Exelis Inc.

     
  • I’ve got the command correct now.  The command window is asking to “Enter a selection point”.  I window around the three vias I want to replace and then a pop-up window appears asking for the new padstack name.  I type in a new name and the command window indicates that “3 vias were replaced”  The vias remain unchanged however.  I query them and they are still the same.  What am I doing wrong?
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