Add jumpers (antenna protection) on I/O pads and SRAM macro-block.
* New: In cumulus/plugins.chip.pads, add METAL5 jumpers on all wires
going to/from the I/O pads on the East & West side. This is a
quick hack as:
1. We should put it also on North/South, but no violation
happens here.
2. We should put it on *ouput* wire only (for only those are
connected to transistors gates).
* New: In cumulus/plugins.chip.macro, put jumpers on the East side
connectors for the SRAM block. Also a quick hack, not robust for
anything else than the SRAM.
This commit is contained in:
Jean-Paul Chaput
parent
dd49a185af
commit
92a3e32aaf
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@ -513,6 +513,7 @@ class CoreWire ( object ):
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self.offset = 0
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self.offsetType = CoreWire.NoOffset
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self.side = side
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self.addJumper = False
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self.preferredDir = preferredDir
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self.inCoronaRange = True
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self.arraySize = None
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@ -520,6 +521,8 @@ class CoreWire ( object ):
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self.viaPitch = DbU.fromLambda( 4.0 )
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self.gapWidth = 0
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self._computeCoreLayers()
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if self.conf.routingGauge.getName() == 'FlexLib':
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self.addJumper = True
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@property
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def conf ( self ): return self.corona.conf
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@ -627,6 +630,61 @@ class CoreWire ( object ):
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if not self.preferredDir:
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#xPadMin -= self.bbSegment.getHeight()/2
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xPadMin -= 3*vPitch
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if self.addJumper:
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rg = self.conf.routingGauge
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gaugeM5 = rg.getLayerGauge( 4 )
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wwidthM5 = gaugeM5.getWireWidth()
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jumperGap = 3*gaugeM5.getPitch()
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if self.side == East:
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gapCenter = xPadMin + 5*gaugeM5.getPitch()
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else:
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gapCenter = xPadMax - 5*gaugeM5.getPitch()
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xJumpMin = gapCenter - jumperGap/2
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xJumpMax = gapCenter + jumperGap/2
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hReal1 = Horizontal.create( self.chipNet
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, self.padSegment.getLayer()
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, self.bbSegment.getCenter().getY()
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, self.bbSegment.getHeight()
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, xPadMin
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, xJumpMin
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)
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trace( 550, '\thReal1: %s\n' % str(hReal1) )
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hReal2 = Horizontal.create( self.chipNet
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, self.padSegment.getLayer()
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, self.bbSegment.getCenter().getY()
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, self.bbSegment.getHeight()
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, xJumpMax
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, xPadMax
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)
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trace( 550, '\thReal2: %s\n' % str(hReal2) )
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hReal = hReal2 if self.side == West else hReal1
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bvia1 = BigVia( self.chipNet
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, rg.getLayerDepth( self.padSegment.getLayer() )
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, xJumpMin
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, self.bbSegment.getCenter().getY()
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, wwidthM5
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, 2*wwidthM5
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, flags=BigVia.AllowAllExpand )
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bvia1.mergeDepth( gaugeM5.getDepth() )
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trace( 550, '\tbvia1: %s\n' % str(bvia1) )
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bvia1.doLayout()
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bvia2 = BigVia( self.chipNet
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, rg.getLayerDepth( self.padSegment.getLayer() )
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, xJumpMax
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, self.bbSegment.getCenter().getY()
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, wwidthM5
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, 2*wwidthM5
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, flags=BigVia.AllowAllExpand )
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bvia2.mergeDepth( gaugeM5.getDepth() )
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bvia2.doLayout()
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trace( 550, '\tbvia2: %s\n' % str(bvia2) )
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Horizontal.create( bvia1.getPlate( gaugeM5.getLayer() )
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, bvia2.getPlate( gaugeM5.getLayer() )
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, gaugeM5.getLayer()
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, self.bbSegment.getCenter().getY()
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, wwidthM5
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)
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else:
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hReal = Horizontal.create( self.chipNet
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, self.padSegment.getLayer()
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, self.bbSegment.getCenter().getY()
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@ -134,19 +134,33 @@ class Macro ( object ):
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gaugeMetal2 = self.rg.getLayerGauge( 1 )
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gaugeMetal3 = self.rg.getLayerGauge( 2 )
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gaugeMetal4 = self.rg.getLayerGauge( 3 )
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gaugeMetal5 = self.rg.getLayerGauge( 4 )
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blockageMetal2 = gaugeMetal2.getBlockageLayer()
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blockageMetal3 = gaugeMetal3.getBlockageLayer()
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blockageMetal4 = gaugeMetal4.getBlockageLayer()
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minSpacingMetal2 = gaugeMetal2.getLayer().getMinimalSpacing()
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minSpacingMetal3 = gaugeMetal3.getLayer().getMinimalSpacing()
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minSpacingMetal4 = gaugeMetal4.getLayer().getMinimalSpacing()
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useJumper = False
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xMinAdjust = 0
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yMinAdjust = 0
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xMaxAdjust = 0
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yMaxAdjust = 0
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if self.cell.getName().lower() == 'spblock_512w64b8w':
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print( ' o Ad-hoc patch for "{}".'.format(self.cell.getName()) )
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useJumper = True
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xMinAdjust = 3*self.rg.getPitch( gaugeMetal5.getLayer() )
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pitch = gaugeMetal2.getPitch()
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if xMinAdjust % pitch:
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xMinAdjust += pitch - (xMinAdjust % pitch)
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for net in self.cell.getNets():
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for component in net.getComponents():
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if isinstance(component,Rectilinear) and component.getLayer() == blockageMetal2:
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bb = component.getBoundingBox()
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bb.inflate( minSpacingMetal2 )
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bb.inflate( minSpacingMetal2 + xMinAdjust
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, minSpacingMetal2
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, minSpacingMetal2
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, minSpacingMetal2 )
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Horizontal.create( component.getNet()
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, blockageMetal2
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, bb.getYCenter()
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@ -192,11 +206,9 @@ class Macro ( object ):
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elif ab.getXMin() == bb.getXMin(): westPins.append( component )
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elif ab.getYMax() == bb.getYMax(): northPins.append( component )
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elif ab.getYMin() == bb.getYMin(): southPins.append( component )
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xAdjust = 0
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yAdjust = 0
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if ab.getWidth () % sliceHeight: xAdjust = sliceHeight - ab.getWidth () % sliceHeight
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if ab.getHeight() % sliceHeight: yAdjust = sliceHeight - ab.getHeight() % sliceHeight
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self.innerAb.inflate( 0, 0, xAdjust, yAdjust )
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if ab.getWidth () % sliceHeight: xMaxAdjust = sliceHeight - (ab.getWidth ()+xMinAdjust) % sliceHeight
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if ab.getHeight() % sliceHeight: yMaxAdjust = sliceHeight - (ab.getHeight()+yMinAdjust) % sliceHeight
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self.innerAb.inflate( xMinAdjust, 0, xMaxAdjust, yMaxAdjust )
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self.outerAb = Box( self.innerAb )
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self.outerAb.inflate( sliceHeight )
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westPins .sort( key=lambda k: k.getBoundingBox().getYCenter() )
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@ -225,6 +237,57 @@ class Macro ( object ):
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else:
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ppYAxis += width/2
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ppYOngrid -= wwidth/2
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if useJumper:
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jpitch = self.rg.getPitch ( gaugeMetal5.getLayer() )
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jwwidth = self.rg.getWireWidth( gaugeMetal5.getLayer() )
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xMin -= 4*jpitch
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bvia1 = BigVia( component.getNet()
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, self.getLayerDepth(component.getLayer())
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, xMax
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, yOngrid
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, wwidth
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, 3*wwidth
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, flags=BigVia.AllowAllExpand )
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bvia1.mergeDepth( gaugeMetal5.getDepth() )
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bvia1.doLayout()
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bvia2 = BigVia( component.getNet()
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, self.getLayerDepth(component.getLayer())
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, xMax - 3*jpitch
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, yOngrid
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, wwidth
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, 3*wwidth
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, flags=BigVia.AllowAllExpand )
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bvia2.mergeDepth( gaugeMetal5.getDepth() )
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bvia2.doLayout()
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Horizontal.create( bvia1.getPlate( gaugeMetal5.getLayer() )
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, bvia2.getPlate( gaugeMetal5.getLayer() )
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, gaugeMetal5.getLayer()
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, yOngrid
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, jwwidth
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)
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horizontal = Horizontal.create( component.getNet()
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, component.getLayer()
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, yOngrid
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, wwidth
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, xMin
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, xMax - 3*jpitch
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)
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horizontal = Horizontal.create( component.getNet()
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, component.getLayer()
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, yOngrid
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, wwidth
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, xMin
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, xMin + ppitch + ppitch/2
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)
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blockageNet = self.cell.getNet( '*' )
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for gauge in [ gaugeMetal3, gaugeMetal3, gaugeMetal4, gaugeMetal5 ]:
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bb = bvia1.getPlate( gauge.getLayer() ).getBoundingBox()
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bb.merge( bvia2.getPlate( gauge.getLayer() ).getBoundingBox() )
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bb.inflate( gauge.getLayer().getMinimalSpacing() )
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Pad.create( blockageNet
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, gauge.getLayer().getBlockageLayer()
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, bb )
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else:
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vertical = Vertical.create( component.getNet()
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, component.getLayer()
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, bb.getXMin()
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@ -259,8 +322,8 @@ class Macro ( object ):
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bb = component.getBoundingBox()
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yAxis = bb.getYCenter()
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yOngrid = self.getNearestTrackAxis( layer, yAxis )
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xMin = self.innerAb.getXMax() - xAdjust
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xMax = xMin + xAdjust + hMargin*ppitch
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xMin = self.innerAb.getXMax() - xMaxAdjust
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xMax = xMin + xMaxAdjust + hMargin*ppitch
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width = bb.getHeight()
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ppYAxis = yAxis
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ppYOngrid = yOngrid
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@ -289,7 +352,7 @@ class Macro ( object ):
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, layer
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, yOngrid
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, wwidth
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, xMin + xAdjust + ppitch
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, xMin + xMaxAdjust + ppitch
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, xMax
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)
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NetExternalComponents.setExternal( horizontal )
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@ -347,8 +410,8 @@ class Macro ( object ):
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bb = component.getBoundingBox()
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xAxis = bb.getXCenter()
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xOngrid = self.getNearestTrackAxis( layer, xAxis )
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yMin = self.innerAb.getYMax() - yAdjust
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yMax = yMin + yAdjust + vMargin*ppitch
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yMin = self.innerAb.getYMax() - yMaxAdjust
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yMax = yMin + yMaxAdjust + vMargin*ppitch
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width = bb.getWidth()
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ppXAxis = xAxis
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ppXOngrid = xOngrid
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@ -388,7 +451,7 @@ class Macro ( object ):
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, layer
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, xOngrid
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, wwidth
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, yMin + ppitch + yAdjust
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, yMin + ppitch + yMaxAdjust
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, yMax
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)
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NetExternalComponents.setExternal( vertical )
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