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Updating MPP Guardring in Skill

Terry S

Hi All.

I have been using Cadence IC Layout ( Both 5.1.4.1 and 6.1.5 ) tools for the last 6 years and am now diving into Skill Programming.

Occasionally, when I "Flip" a MPP Guardring that have multiple rings, they get turned inside-out.

I have created a Bindkey/Skill procedure to fix the "justification", but am noticing that the update only applies my changes to one of the "subParts"... If I go into the "Edit ROD Multipart Path Properties" menu and select "Subpart" and then click on the "Edit" button, then all my SKILL changes are applied and the MPP Guardring is as I intended.

First I select the MPP Guardring to modify

Here is my code:

procedure(fixHVRingR()
MPPath=car(selectedSet())
myShp=rodGetObj(MPPath)
mySubParts=myShp~>subParts
foreach(myLayer mySubParts
case(myLayer~>justification
      ("left" myLayer~>justification="right")
     )
     )
)

I also have a version for "right" -> ""left"

When I open the Edit ROD Subpart dialog, all of the changes are shown but not on the actual MPP Guardring until I click on "Edit". 

Any help would be appreciated...

BTW... I am currently using Layout Suite XL in 6.1.5 for this issue.

  • theopaone

     Hi Terry

     I don't have virtuoso open at the moment so I can't test my answer so this is just a guess. I used this trick a while ago but not recently.

    The directions that apply to the MPP are based on the digitizing order of the points of the master path. When you flip the data, the command may have changed the order of the points. This would mean that left is now the right and visa-versa.  You could reset the points by reversing the points:

    pathId = car(selectedSet()) ;; Get the master path ID

    pathId~>points = reverse(pathId~>points) ;; Reverse the points of the path

    Ted

     

     

  • Terry S

    Thank You Ted,

    That did it!!!

    I was taking the Long Way around the problem and there was a simple solution...

    And THAT, My fellow Cadence Users is why this forum is so invaluable.

    Terry

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