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how to instance array more efficiently

weihai

I create a skill code to layout array (only one dimension) like below.  Does the skill has any function code to layout the X-Y array?  Thanks a lot!

    fet_c_Inst = dbOpenCellView(pcLib "fet_center" "layout")
     fet_c = nil

    ;For loop to place nrow of instances
    for(instNumY 1 evalstring(nrow)    ;in Y direction
 
    ;Instantiate fet_center using calculated variables & user defined parameters
      nfet_c = append(nfet_c list(dbCreateParamInst(pcCV fet_c_Inst nil xLoc:yLoc "R0" instNumY paramList)))
    yLoc = yLoc + stepY
     ) ;; for

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  • weihai

    Yes, I also did like this.  Thank you.

    Andrew Beckett said:

    It does it by finding the width and length of the bBox of the cell being instantiated. If it's a pcell, then you'd really have to instantiate it to find that out - so probably you'd end up using

    inst=dbCreateParamInst(...)
    bBox=inst~>bBox
    width=xCoord(upperRight(bBox))-xCoord(lowerLeft(bBox))
    height=yCoord(upperRight(bBox))-yCoord(lowerLeft(bBox))
    dbDeleteObject(inst)
    dbCreateParamSimpleMosaic(...)

    Regards,

    Andrew.

Reply
  • weihai

    Yes, I also did like this.  Thank you.

    Andrew Beckett said:

    It does it by finding the width and length of the bBox of the cell being instantiated. If it's a pcell, then you'd really have to instantiate it to find that out - so probably you'd end up using

    inst=dbCreateParamInst(...)
    bBox=inst~>bBox
    width=xCoord(upperRight(bBox))-xCoord(lowerLeft(bBox))
    height=yCoord(upperRight(bBox))-yCoord(lowerLeft(bBox))
    dbDeleteObject(inst)
    dbCreateParamSimpleMosaic(...)

    Regards,

    Andrew.

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