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macro distance

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Hi All

 Can you please suggest me how i can find the distance among all the macros , i am writting a script in which i am inserting soft blockage if distance among macros is less than 15 microns.

 

  • Great question. You could probably achieve this by using dbShape to perform and ANDNOT operation between the placeable area in the design and the area occupied by the macros then calling SIZEX/SIZEY operations on those shapes to identify the gaps. It's pretty tricky conceptually but...

    Have you tried the finishFloorplan? It has an automatic facility for this:

    finishFloorplan -fillPlaceBlockage soft 15

    Let us know how this goes. It would make for a good blog post I think. 

  • Hi BobD ,

     Thanks for your suggestion i used the following command for my requirement and i got what i need by the following command.

    finishFloorplan -fillPlaceBlockage soft 12 -overridePlaceBlockage

  • Hi, I would like to know the basic importance of a macro.. And why do we require around 100's of macros on a design? Can a limited number of macros be utilized for entire functionality? How could that be like an embedded manner?
  • the term "macro" can refer to hard IP, like a RAM, SerDes, etc. or it can be a sub-block in a hierarchical design. the number needed or used really depends on the design.

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