filllib.bsh

The ElectricTM VLSI Design System is an open-source Electronic Design Automation (EDA) system that c

/* -*- tab-width: 4 -*-
 * Electric(tm) VLSI Design System
 *
 * File: fillLib.bsh
 * bean shell script to generate fill cell library
 *
 * Copyright (c) 2003 Sun Microsystems and Static Free Software
 *
 * Electric(tm) is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Electric(tm) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Electric(tm); see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, Mass 02111-1307, USA.
 */
import com.sun.electric.tool.generator.layout.fill.FillGeneratorTool;
import com.sun.electric.tool.generator.layout.fill.FillGeneratorTool.Units;
import com.sun.electric.tool.generator.layout.fill.FillGen;
import com.sun.electric.tool.generator.layout.fill.ExportConfig;
import com.sun.electric.tool.generator.layout.TechType;

// These constant declarations make the following code more compact.
// They won't be necessary once we upgrade to JDK 1.5.
Units LAMBDA = FillGeneratorTool.LAMBDA;
Units TRACKS = FillGeneratorTool.TRACKS;
ExportConfig PERIMETER = ExportConfig.PERIMETER;
ExportConfig PERIMETER_AND_INTERNAL = ExportConfig.PERIMETER_AND_INTERNAL;

// The argument to the FillGenerator constructor may be 
// TechType.MOCMOS or TechType.TSMC180 or TechType.CMOS90
FillGen fg = new FillGen(TechType.MOCMOS);
fg.setFillLibrary("fillLib");
fg.setFillCellWidth(245);
fg.setFillCellHeight(175);
fg.makeEvenLayersHorizontal(true);

// Floor plan of a typical fill Cell metal layer:
//                          (ground space specified by user)/2
//  gggggggggggggggggggg    ground bus bar
//                          wide space set by design rules
//  vvvvvvvvvvvvvvvvvvvv    vdd bus bar
//                          Vdd space specified by user
//  vvvvvvvvvvvvvvvvvvvv    vdd bus bar
//                          wide space set by design rules
//  gggggggggggggggggggg    ground bus bar
//                          (ground space specified by user)/2
//
// Arguments to reserveSpaceOnLayer():
//     layer number, 
//     vdd space, 
//     vdd space units (TRACKS or LAMBDA), 
//     gnd space, 
//     gnd space units (TRACKS or LAMBDA) 

fg.reserveSpaceOnLayer(2, 3, TRACKS, 3, TRACKS);
fg.reserveSpaceOnLayer(3, 3, TRACKS, 3, TRACKS);
fg.reserveSpaceOnLayer(4, 3, TRACKS, 3, TRACKS);
fg.reserveSpaceOnLayer(5, 3, TRACKS, 3, TRACKS);
fg.reserveSpaceOnLayer(6, 2, TRACKS, 2, TRACKS);

// Arguments to ExportConfig():
//     perimeterExportLayers   // layers that should get perimeter exports
//     internalExportLayers    // layers that should get internal exports
ExportConfig exportsForVddGndPadConnections = 
	new ExportConfig(new int[] {5,6}, new int[] {2,3});


// create a procedure because I want to do this twice
void makeCells() {
	// Arguments to makeFillCell():
	//     low layer number
	//     high layer number
	//     export configuration (PERIMETER or PERIMETER_AND_INTERNAL)
	//     array of int's specifying how to tile this fill cell into 
	//        larger ones. null means don't tile.
	fg.makeFillCell(1, 6, PERIMETER, new int[] {2,3,4,5,10,12});
	fg.makeFillCell(2, 6, PERIMETER, new int[] {2,3});
	fg.makeFillCell(3, 6, PERIMETER, null);
	fg.makeFillCell(4, 6, PERIMETER, null);
	fg.makeFillCell(5, 6, PERIMETER, null);
	fg.makeFillCell(6, 6, PERIMETER, new int[] {2,3,4,5,10,12});
	
	fg.makeFillCell(2, 6, PERIMETER_AND_INTERNAL, null);
	fg.makeFillCell(3, 6, PERIMETER_AND_INTERNAL, null);
	fg.makeFillCell(4, 6, PERIMETER_AND_INTERNAL, null);
	fg.makeFillCell(5, 6, PERIMETER_AND_INTERNAL, null);
	fg.makeFillCell(6, 6, PERIMETER_AND_INTERNAL, null);
	
	fg.makeFillCell(2, 6, exportsForVddGndPadConnections, null);
	
	fg.makeGallery();
	fg.writeLibrary();
}

makeCells();

// Now generate a library with no gap in the vdd strap
// We must choose a different library because the Cell names
// don't reflect all the different parameters.
fg.setFillLibrary("noGapLib");
fg.reserveSpaceOnLayer(2, 0, TRACKS, 6, TRACKS);
fg.reserveSpaceOnLayer(3, 0, TRACKS, 6, TRACKS);
fg.reserveSpaceOnLayer(4, 0, TRACKS, 6, TRACKS);
fg.reserveSpaceOnLayer(5, 0, TRACKS, 6, TRACKS);
fg.reserveSpaceOnLayer(6, 0, TRACKS, 4, TRACKS);

makeCells();