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* ./cumulus: 

- Bug: In placeandroute.py/createGrid(), VIAs of the big clock grid must
        have the same width as the wires (12l). But due to the layer extension
        the VIA side must be of 11l.
    - Bug: In placeandroute.py/createGrid(), wires connecting cell clock pin
        to the clock trunk must respect the preferred routing direction.
        The only exception being when the wire is completly enclosed under
        the trunk wire. This is for the obstacle stage of the detailed router.
This commit is contained in:
Jean-Paul Chaput 2012-01-02 21:20:36 +00:00
parent 65c30178f2
commit 81f3b2fa56
1 changed files with 27 additions and 29 deletions
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56
cumulus/src/placeandroute.py
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@ -387,7 +387,7 @@ def pyAlimHorizontalRail ( cell, ycoord ) :
## AlimConnectors ##
####################
def pyAlimConnectors ( cell ) :
'''This function creates the connectors in Alu 1 at the periphery of the core'''
'''Creates the METAL1 connectors on the east & west sides of the core'''
global nb_lignes, nb_vdd_pins, nb_vss_pins
@ -410,7 +410,7 @@ def pyAlimConnectors ( cell ) :
+ "Please place some instances before the placement of alim connectors.\n"
raise err
metal1 = getDataBase().getTechnology().getLayer ( "METAL1" )
metal1 = getDataBase().getTechnology().getLayer("METAL1")
string = getVddVss ( cell, 0 )
if re.search ( "vdd", string ) :
@ -431,26 +431,24 @@ def pyAlimConnectors ( cell ) :
if not netImpair:
err = "\n[Stratus ERROR] AlimConnectors : can't get net " + inv_string + ".\n"
raise err
for i in range ( nb_lignes + 1 ) :
pin_width = DbU_lambda(12)
pin_height = DbU_lambda(12)
pin_y = i * DbU_lambda(SLICE)
pin_x1 = 0 + ( pin_width / 4 )
pin_x2 = cell.getAbutmentBox().getWidth() - ( pin_width / 4 )
if i == 0 :
pin_height = pin_height / 2
pin_width = pin_width / 2
pin_y = pin_y + ( pin_height / 2 )
pin_x1 = 0
pin_x2 = cell.getAbutmentBox().getWidth()
elif i == nb_lignes :
pin_height = pin_height / 2
pin_width = pin_width / 2
pin_y = pin_y - ( pin_height / 2 )
pin_x1 = 0
pin_x2 = cell.getAbutmentBox().getWidth()
pin_x1 = 0 + ( pin_width / 2 )
pin_x2 = cell.getAbutmentBox().getWidth() - ( pin_width / 2 )
# Ligne impaire
if i % 2 :
pin_name = str(netImpair.getName()) + "." + str(nb_inv_pins)
@ -2029,8 +2027,8 @@ def createGrid ( my_tuple ) :
def CreateZ ( contact1, contact2 ) :
centerX = (contact1.getX() + contact2.getX() ) / 2
centerX = centerX - (centerX % DbU_lambda(5))
zContact1 = Contact ( net, via5, centerX, contact1.getY(), DbU_lambda(12), DbU_lambda(12) )
zContact2 = Contact ( net, via5, centerX, contact2.getY(), DbU_lambda(12), DbU_lambda(12) )
zContact1 = Contact ( net, via5, centerX, contact1.getY(), DbU_lambda(11), DbU_lambda(11) )
zContact2 = Contact ( net, via5, centerX, contact2.getY(), DbU_lambda(11), DbU_lambda(11) )
Horizontal ( contact1, zContact1, metal6, contact1.getY(), DbU_lambda(12) )
Vertical ( zContact1, zContact2, metal5, zContact1.getX(), DbU_lambda(12) )
@ -2039,8 +2037,8 @@ def createGrid ( my_tuple ) :
def CreateN ( contact1, contact2 ) :
centerY = ( contact1.getY() + contact2.getY() ) / 2
centerY = centerY - ( centerY % DbU_lambda(5) )
nContact1 = Contact ( net, via5, contact1.getX(), centerY, DbU_lambda(12), DbU_lambda(12) )
nContact2 = Contact ( net, via5, contact2.getX(), centerY, DbU_lambda(12), DbU_lambda(12) )
nContact1 = Contact ( net, via5, contact1.getX(), centerY, DbU_lambda(11), DbU_lambda(11) )
nContact2 = Contact ( net, via5, contact2.getX(), centerY, DbU_lambda(11), DbU_lambda(11) )
Vertical ( contact1, nContact1, metal5, contact1.getX(), DbU_lambda(12) )
Horizontal ( nContact1, nContact2, metal6, nContact1.getY(), DbU_lambda(12) )
@ -2102,10 +2100,10 @@ def createGrid ( my_tuple ) :
gridBoundingBox.inflate ( DbU_lambda(15) )
#Create the Bounding Box grid
NEContact = Contact ( net, via5, gridBoundingBox.getXMin(), gridBoundingBox.getYMax() , DbU_lambda(12), DbU_lambda(12) )
NWContact = Contact ( net, via5, gridBoundingBox.getXMax(), gridBoundingBox.getYMax() , DbU_lambda(12), DbU_lambda(12) )
SEContact = Contact ( net, via5, gridBoundingBox.getXMin(), gridBoundingBox.getYMin() , DbU_lambda(12), DbU_lambda(12) )
SWContact = Contact ( net, via5, gridBoundingBox.getXMax(), gridBoundingBox.getYMin() , DbU_lambda(12), DbU_lambda(12) )
NEContact = Contact ( net, via5, gridBoundingBox.getXMin(), gridBoundingBox.getYMax() , DbU_lambda(11), DbU_lambda(11) )
NWContact = Contact ( net, via5, gridBoundingBox.getXMax(), gridBoundingBox.getYMax() , DbU_lambda(11), DbU_lambda(11) )
SEContact = Contact ( net, via5, gridBoundingBox.getXMin(), gridBoundingBox.getYMin() , DbU_lambda(11), DbU_lambda(11) )
SWContact = Contact ( net, via5, gridBoundingBox.getXMax(), gridBoundingBox.getYMin() , DbU_lambda(11), DbU_lambda(11) )
northSegment = Segment ( NEContact, NWContact, metal6, DbU_lambda(12) )
southSegment = Segment ( SEContact, SWContact, metal6, DbU_lambda(12) )
eastSegment = Segment ( NEContact, SEContact, metal5, DbU_lambda(12) )
@ -2144,7 +2142,7 @@ def createGrid ( my_tuple ) :
elif x == gridBoundingBox.getXMax() :
gridContact = NEContact
else :
gridContact = Contact(southSegment, via5, x, 0, DbU_lambda(12), DbU_lambda(12))
gridContact = Contact(southSegment, via5, x, 0, DbU_lambda(11), DbU_lambda(11))
southContacts.append(x)
elif y > gridBoundingBox.getYMax() :
@ -2153,7 +2151,7 @@ def createGrid ( my_tuple ) :
elif x == gridBoundingBox.getXMax() :
gridBoundingBox = SEContact
else :
gridContact = Contact(northSegment, via5, x, 0, DbU_lambda(12), DbU_lambda(12))
gridContact = Contact(northSegment, via5, x, 0, DbU_lambda(11), DbU_lambda(11))
northContacts.append(x)
else :
raise "\n[Stratus ERROR] RouteCK : bad pad placement.\n"
@ -2166,7 +2164,7 @@ def createGrid ( my_tuple ) :
elif y == gridBoundingBox.getYMax() :
gridContact = NWContact
else :
gridContact = Contact(eastSegment, via5, 0, y, DbU_lambda(12), DbU_lambda(12))
gridContact = Contact(eastSegment, via5, 0, y, DbU_lambda(11), DbU_lambda(11))
eastContacts.append(y)
elif x > gridBoundingBox.getXMax() :
if y == gridBoundingBox.getYMin() :
@ -2174,7 +2172,7 @@ def createGrid ( my_tuple ) :
elif y == gridBoundingBox.getYMax() :
gridContact = SWContact
else :
gridContact = Contact(westSegment, via5, 0, y, DbU_lambda(12), DbU_lambda(12))
gridContact = Contact(westSegment, via5, 0, y, DbU_lambda(11), DbU_lambda(11))
westContacts.append(y)
else :
raise "\n[Stratus ERROR] RouteCK : bad pad placement.\n"
@ -2188,7 +2186,7 @@ def createGrid ( my_tuple ) :
+ str(DbU_getLambda(gridBoundingBox.getYMax())) + ".\n"
raise err
compContact = Contact ( net, via5, x, y, DbU_lambda(12), DbU_lambda(12) )
compContact = Contact ( net, via5, x, y, DbU_lambda(11), DbU_lambda(11) )
Segment ( compContact, gridContact, layer , DbU_lambda(12) )
@ -2208,8 +2206,8 @@ def createGrid ( my_tuple ) :
x = x - (x % DbU_lambda(5))
x = FindPositionForContact(x, northContacts, southContacts)
contact1 = Contact ( southSegment, via5, x, 0, DbU_lambda(12), DbU_lambda(12))
contact2 = Contact ( northSegment, via5, x, 0, DbU_lambda(12), DbU_lambda(12))
contact1 = Contact ( southSegment, via5, x, 0, DbU_lambda(11), DbU_lambda(11))
contact2 = Contact ( northSegment, via5, x, 0, DbU_lambda(11), DbU_lambda(11))
Segment ( contact1, contact2, metal5, DbU_lambda(12) )
@ -2220,14 +2218,14 @@ def createGrid ( my_tuple ) :
y = y - ( y % DbU_lambda(5) )
y = FindPositionForContact ( y, eastContacts, westContacts )
contact1 = Contact ( westSegment, via5, 0, y, DbU_lambda(12), DbU_lambda(12) )
contact2 = Contact ( eastSegment, via5, 0, y, DbU_lambda(12), DbU_lambda(12) )
contact1 = Contact ( westSegment, via5, 0, y, DbU_lambda(11), DbU_lambda(11) )
contact2 = Contact ( eastSegment, via5, 0, y, DbU_lambda(11), DbU_lambda(11) )
horizontal = Segment ( contact1, contact2, metal6, DbU_lambda(12) )
yList.append ( y )
for x in xList : Contact ( horizontal, via5, x, 0, DbU_lambda(12), DbU_lambda(12) )
for x in xList : Contact ( horizontal, via5, x, 0, DbU_lambda(11), DbU_lambda(11) )
# Connection to the grid
# Cette liste contient les contacts qui sont deja crees
@ -2257,7 +2255,7 @@ def createGrid ( my_tuple ) :
if xDistance != 0 or yDistance != 0 :
if ( xDistance <= yDistance + DbU_lambda(10) ): # test pour faire un horizontal
if xDistance != 0 :
if xDistance <= DbU_lambda(15) :
if abs(xDistance) <= DbU_lambda(3) :
gridContact = Contact ( net, metal5, xTarget, yContact, DbU_lambda(2), DbU_lambda(2) )
layer = metal5
else :
@ -2269,7 +2267,7 @@ def createGrid ( my_tuple ) :
gridContact = Contact ( net, via5, xTarget, yContact, DbU_lambda(2), DbU_lambda(2) )
else:
if yDistance != 0 :
if yDistance <= DbU_lambda(15) :
if abs(yDistance) <= DbU_lambda(3) :
layer = metal6
gridContact = Contact ( net, metal6, xContact, yTarget, DbU_lambda(2), DbU_lambda(2) )
Contact ( net, via5, xContact, yContact, DbU_lambda(2), DbU_lambda(2) )