def _rcheckUnplaced ( self, path, cell ):
for instance in cell.getInstances():
if instance.getPlacementStatus() == Instance.PlacementStatus.UNPLACED:
self.unplaceds.append( Occurrence(instance,path) )
rpath = Path( path, instance )
self._rcheckUnplaced( rpath, instance.getMasterCell() )
return
def _rpByPlug ( self, plug, net ):
if plug in self._plugToRp:
rp = self._plugToRp[plug]
else:
occurrence = Occurrence( plug, Path(net.getCell(),'') )
rp = RoutingPad.create( net, occurrence, RoutingPad.BiggestArea )
self._plugToRp[plug] = rp
return rp
def connectLeaf(self):
trace(550, '\tConnecting leafs.\n')
UpdateSession.open()
leafsByBuffer = {}
hyperMasterClock = HyperNet.create(Occurrence(self.masterClock))
for plugOccurrence in hyperMasterClock.getLeafPlugOccurrences():
trace(550, '\tAdding leaf <%s>.\n' % plugOccurrence)
position = plugOccurrence.getBoundingBox().getCenter()
self.addLeaf(position, plugOccurrence)
self.childs[0].connectLeafs()
sys.stdout.flush()
getPlugByName(self.topBuffer, self.bufferIn).setNet(self.masterClock)
UpdateSession.close()
return
def connectClock ( self ):
if not self.useClockTree:
print(WarningMessage( "Clock tree generation has been disabled ('chip.clockTree':False)." ))
return
if not self.cko:
print(ErrorMessage( 1, 'Cannot build clock terminal as ck is not known.' ))
return
blockCk = None
for plug in self.path.getTailInstance().getPlugs():
if plug.getNet() == self.cko:
blockCk = plug.getMasterNet()
if not blockCk:
print(ErrorMessage( 1, 'Block <%s> has no net connected to the clock <%s>.'
% (self.path.getTailInstance().getName(),self.ck.getName()) ))
return
htPlugs = []
ffPlugs = []
for plug in blockCk.getPlugs():
if plug.getInstance().getName() == 'ck_htree':
htPlugs.append( plug )
else:
if plug.getInstance().getMasterCell().isTerminal():
ffPlugs.append( plug )
if len(ffPlugs) > 0:
message = 'Clock <%s> of block <%s> is not organized as a H-Tree.' \
% (blockCk.getName(),self.path.getTailInstance().getName())
print(ErrorMessage( 1, message ))
return
if len(htPlugs) > 1:
message = 'Block <%s> has not exactly one H-Tree connecteds to the clock <%s>:' \
% (self.path.getTailInstance().getName(),blockCk.getName())
for plug in htPlugs:
message += '\n - %s' % plug
print(ErrorMessage( 1, message ))
return
UpdateSession.open()
bufferRp = self.rpAccessByOccurrence( Occurrence(htPlugs[0], self.path), self.cko )
blockAb = self.block.getAbutmentBox()
self.path.getTransformation().applyOn( blockAb )
layerGauge = self.routingGauge.getLayerGauge(self.verticalDepth)
contact = Contact.create( self.cko
, self.routingGauge.getRoutingLayer(self.verticalDepth)
, bufferRp.getX()
, blockAb.getYMax()
, layerGauge.getViaWidth()
, layerGauge.getViaWidth()
)
segment = self.createVertical( bufferRp, contact, bufferRp.getX() )
self.activePlane = self.planes[ layerGauge.getLayer().getName() ]
bb = segment.getBoundingBox( self.activePlane.metal.getBasicLayer() )
self.path.getTransformation().getInvert().applyOn( bb )
self.activePlane.addTerminal( self.cko, Plane.Vertical, bb )
UpdateSession.close()
return