Edge Not on Grid

Discussion in 'Cadence' started by Aby, May 13, 2005.

  1. Aby

    Aby Guest

    Hi everyone,
    I wrote some skill code to generate a custom power-grid. The grid
    appears fine but when I run DRC on it, it gives me errors stating "Edge
    not on grid". I think that it may be because the dimensions I compute
    in the skill code are not multiples of the manufactuing grid
    resoultion. Is there any simple way to fix these errors?

    Any comments would be appreciated.

    Saby.
     
    Aby, May 13, 2005
    #1
  2. Aby

    Bernd Fischer Guest

    Hi,

    f_grid = techGetMfgGridResolution( techGetTechFile( ddGetObj( t_libName ) ) )

    where 't_libName' is your technology library name;

    returns the mfgGridResolution value form your tech library technology file
    which should probably be the right manufacturing gird.

    Use the value to calculate your power grid.

    Bernd

    wrote:
     
    Bernd Fischer, May 13, 2005
    #2
  3. Aby

    G Vandevalk Guest

    Also be careful about paths. Centerlines need to be 2 times the grid or the
    edges
    end up off grid.

    -- Gerry @ www.ictooling.com
     
    G Vandevalk, May 13, 2005
    #3
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