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E shaped floorplan

I am working on a chip that needs to be shaped like an inverted "E". I was trying out the rectilinear option as per what is mentioned in the user guide, but it doesnt seem to work. Basically two portions need to be cut out from the normally rectangular FP. I am using the gui.

What do you do when you need the shape of a floorplan in a shape other than a rectangle or a square ? .

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BobD over 13 years ago

You should be able to use the rectilinear cut widget to define the shape you want, similarly as demonstrated in this video:
/blogs/di/archive/2008/09/02/demo-interactive-floorplanning-in-soc-encounter.aspx
If the tool isn't allowing you to create a rectilinear top level it may be because your design contains 1 or more IO cells which makes the tool think you're working on a chip and rectilinear chips are unusual. If that's the case check this solution:
http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11735168;searchHash=1c2a26da5b0ab872dc6ae9f165ad8d90
Hope this helps,
Bob
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BobD over 13 years ago

You should be able to use the rectilinear cut widget to define the shape you want, similarly as demonstrated in this video:
/blogs/di/archive/2008/09/02/demo-interactive-floorplanning-in-soc-encounter.aspx
If the tool isn't allowing you to create a rectilinear top level it may be because your design contains 1 or more IO cells which makes the tool think you're working on a chip and rectilinear chips are unusual. If that's the case check this solution:
http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11735168;searchHash=1c2a26da5b0ab872dc6ae9f165ad8d90
Hope this helps,
Bob
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Vote Up 0 Vote Down

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