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Moving Pins

Philey

 Hi All,

I am completly new in SKILL programming and looking for a simple code to move automatically pins to instances (subblocks) generated in VXL.

 

Rgds

Philey 

Parents

  • I was just looking at the SKILL code I have which does something similar. Unfortunately it contains a lot of things specific to the customer I wrote it for, as well as a whole bunch of other things which make the code too complex an example to post.

    And I don't have time for the next week or two to produce a cut down, simplified example.

    Perhaps somebody else can post something...

    The general idea is that you would do something like:

    foreach(term cv~>terminals
      ; iterate over all the pins for this terminal
      foreach(pin term~>pins
        pinFig=pin~>fig
        net=term~>net
        ; only do this if there aren't more than one inst term
        unless(cdr(net~>instTerms)
          instTerm=car(net~>instTerms)
          childTerm=instTerm~>terminal
          childPinFig=car(childTerm~>pins)~>fig
          ; location within the instance master
          location=centerBox(childPinFig~>bBox)
          ; transform to the top level coordinate system
          location=dbTransformPoint(location instTerm~>inst~>transform)
          pinFigLocation=centerBox(pinFig~>bBox)
          ; calculate the overall transform to move the pin to the new location
          transform=dbConcatTransform(list(-xCoord(pinFigLocation):-yCoord(pinFigLocation) "R0" 1) location)
          dbMoveFig(pinFig transform)
        )
      )
    )

    Note this is completely off the top of my head, with no testing.  Indentation may be a bit awry because I just typed it into the browser.

    Regards,

    Andrew.

Reply

  • I was just looking at the SKILL code I have which does something similar. Unfortunately it contains a lot of things specific to the customer I wrote it for, as well as a whole bunch of other things which make the code too complex an example to post.

    And I don't have time for the next week or two to produce a cut down, simplified example.

    Perhaps somebody else can post something...

    The general idea is that you would do something like:

    foreach(term cv~>terminals
      ; iterate over all the pins for this terminal
      foreach(pin term~>pins
        pinFig=pin~>fig
        net=term~>net
        ; only do this if there aren't more than one inst term
        unless(cdr(net~>instTerms)
          instTerm=car(net~>instTerms)
          childTerm=instTerm~>terminal
          childPinFig=car(childTerm~>pins)~>fig
          ; location within the instance master
          location=centerBox(childPinFig~>bBox)
          ; transform to the top level coordinate system
          location=dbTransformPoint(location instTerm~>inst~>transform)
          pinFigLocation=centerBox(pinFig~>bBox)
          ; calculate the overall transform to move the pin to the new location
          transform=dbConcatTransform(list(-xCoord(pinFigLocation):-yCoord(pinFigLocation) "R0" 1) location)
          dbMoveFig(pinFig transform)
        )
      )
    )

    Note this is completely off the top of my head, with no testing.  Indentation may be a bit awry because I just typed it into the browser.

    Regards,

    Andrew.

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