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Place multiple instances in layout editor window with co-ordinates as specified in the text file and check if the layout is on grid.

ManuNarayan

Hi all,

I am facing a problem in writing a code for following query .

Place multiple instances in layout editor window with co-ordinates as specified in the text file and check if the layout is on grid.

my text file would be (cell name) (x y) , please help in the regards,  
  • ManuNarayan
    Hi All ,

    Can anyone help me in this regards , I am serching for code for following query.

    Place multiple instances in layout editor window with co-ordinates as specified in the text file and check if the layout is on grid

    Thanking you,

    Regards,

    Arjun
  • Austin CAD Guy

     Quote: my text file would be (cell name) (x y) ,

    Your format needs to be very specific, the example you gave is unclear. Is there a space between the cellName and the parentheses? There cannot be a space in the cell name. Do you have control over the output format of the file?

    I have tried using fscanf but it is subject to the format. A better solution is to use lineread which is less sensitive to the format, it interprets the data as if it were SKILL. It will return a list of the parsed data. According to your format, it will be the following:

    list( list(myCell) list(3.3 5.2))

    Because the cell name is not surrounded by quotes, it is a symbol, use get_pname to turn it into a string:

    cell = get_pname(caar(curLine))

    The second element in the list is  the point for placement.

    Use dbCreateInst to do the placement. See the document for the format.

    As for checking for layout on grid, it depends on what you are trying to do. If it is for the placement points, I would process that before placing the instance. If you want to check the resulting hierarchical data, use a DRC checkeras it would be much faster.

    Ted

  • ManuNarayan
    Below is my code, if any changes the code inform me .procedure(Inst_place()myport=infile("/h/arjus4/scripts/skill/inst_place.text")let((master cellname data x y )while(gets(Line myport)data= parseString(Line " ()")cellname = nth(0 data)x = nth(1 data)  y = nth(2 data)a = techGetMfgGridResolution(techGetTechFile(deGetEditCellView()))if( mod(y a)== 0 && mod(x a)== 0printf("The Insatance are in Grid ")elseprintf("The Insatance are Not in Grid "))printf("The Given Cell is %s " cellname);printf("The Coordinate value is(%s %s)" x y);master = dbOpenCellViewByType("tsmcN90rf" cellname "layout")dbCreateInst(deGetEditCellView( ) master "" list(atof(x) atof(y)) "R0")))close(myport));

     
  • Andrew Beckett

    Hard to read that given that the code has got squished onto a single line (perhaps you were using Chrome, which seems to have problems on this site). Maybe you can re-post from a different browser?

    One thing I noticed is that you seem to have used ; at the end of various lines (that's not necessary - in fact ";" means the start of a comment in SKILL). Won't affect the running of the code though.

    Regards,

    Andrew.

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