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Fix too narrow blockages areas for the SRAM/macro wrapper. 

* In Cumulus/plugins/block/macro.py, the METAL3 blokage was too narrow
    on the left side, allowing use of METAL3 track too close from
    internal components.
      The METAL5 blockages around jumpers where also too narrow.
      Thoses problems where seen with the density filler which put
    wires everywhere.
This commit is contained in:
Jean-Paul Chaput 2021-06-26 14:37:37 +02:00
parent 5a43c1465e
commit 3f42981fb2
1 changed files with 18 additions and 18 deletions
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36
cumulus/src/plugins/alpha/macro/macro.py
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@ -141,6 +141,10 @@ class Macro ( object ):
minSpacingMetal2 = gaugeMetal2.getLayer().getMinimalSpacing()
minSpacingMetal3 = gaugeMetal3.getLayer().getMinimalSpacing()
minSpacingMetal4 = gaugeMetal4.getLayer().getMinimalSpacing()
pitchMetal2 = gaugeMetal2.getPitch()
pitchMetal3 = gaugeMetal3.getPitch()
pitchMetal4 = gaugeMetal4.getPitch()
pitchMetal5 = gaugeMetal5.getPitch()
useJumper = False
xMinAdjust = 0
yMinAdjust = 0
@ -149,18 +153,18 @@ class Macro ( object ):
if self.cell.getName().lower() == 'spblock_512w64b8w':
print( ' o Ad-hoc patch for "{}".'.format(self.cell.getName()) )
useJumper = True
xMinAdjust = 3*self.rg.getPitch( gaugeMetal5.getLayer() )
xMinAdjust = self.rg.getPitch( gaugeMetal5.getLayer() )
pitch = gaugeMetal2.getPitch()
if xMinAdjust % pitch:
xMinAdjust += pitch - (xMinAdjust % pitch)
for net in self.cell.getNets():
for component in net.getComponents():
if isinstance(component,Rectilinear) and component.getLayer() == blockageMetal2:
bb = component.getBoundingBox()
bb.inflate( minSpacingMetal2 + xMinAdjust
, minSpacingMetal2 + u(0.19)
, minSpacingMetal2
, minSpacingMetal2 )
bb = Box( component.getBoundingBox() )
bb.inflate( 2*pitchMetal5 + xMinAdjust
, pitchMetal2 + u(0.19)
, pitchMetal2
, pitchMetal2 )
Horizontal.create( component.getNet()
, blockageMetal2
, bb.getYCenter()
@ -174,23 +178,19 @@ class Macro ( object ):
, bb.getXMin()
, bb.getXMax() )
elif isinstance(component,Rectilinear) and component.getLayer() == blockageMetal3:
bb = component.getBoundingBox()
bb.inflate( 2*minSpacingMetal3, minSpacingMetal3/2 )
bb = Box( component.getBoundingBox() )
deltaAbXMin = bb.getXMin() + minSpacingMetal3/2 - ab.getXMin()
bb.inflate( pitchMetal3 + deltaAbXMin
, minSpacingMetal3/2
, pitchMetal3
, pitchMetal3
)
Vertical.create( component.getNet()
, blockageMetal3
, bb.getXCenter()
, bb.getWidth()
, bb.getYMin()
, bb.getYMax() )
elif isinstance(component,Rectilinear) and component.getLayer() == blockageMetal4:
bb = component.getBoundingBox()
bb.inflate( minSpacingMetal4 )
Horizontal.create( component.getNet()
, blockageMetal4
, bb.getYCenter()
, bb.getHeight()
, bb.getXMin()
, bb.getXMax() )
if self.cell.getName().lower() in [ 'pll', 'gds_pll', 'cmpt_pll' ]:
print( ' o Ad-hoc patch for "{}".'.format(self.cell.getName()) )
self.innerAb = ab
@ -289,7 +289,7 @@ class Macro ( object ):
for gauge in [ gaugeMetal3, gaugeMetal3, gaugeMetal4, gaugeMetal5 ]:
bb = bvia1.getPlate( gauge.getLayer() ).getBoundingBox()
bb.merge( bvia2.getPlate( gauge.getLayer() ).getBoundingBox() )
bb.inflate( gauge.getLayer().getMinimalSpacing() )
bb.inflate( gauge.getPitch() )
Pad.create( blockageNet
, gauge.getLayer().getBlockageLayer()
, bb )