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Add supply rails to dff array. PEP8 cleanup.

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This commit is contained in:
mrg
2020-04-21 15:21:29 -07:00
parent 5f76514cf0
commit cd66ddb37c
2 changed files with 44 additions and 23 deletions
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compiler/modules/dff_buf_array.py
+28 -6
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@@ -48,6 +48,7 @@ class dff_buf_array(design.design):
self.width = self.columns * self.dff.width
self.height = self.rows * self.dff.height
self.place_dff_array()
self.route_supplies()
self.add_layout_pins()
self.add_boundary()
self.DRC_LVS()
@@ -94,15 +95,25 @@ class dff_buf_array(design.design):
def place_dff_array(self):
well_spacing = max(self.nwell_space,
self.pwell_space,
self.pwell_to_nwell)
well_spacing = 0
try:
well_spacing = max(self.nwell_space, well_spacing)
except AttributeError:
pass
try:
well_spacing = max(self.pwell_space, well_spacing)
except AttributeError:
pass
try:
well_spacing = max(self.pwell_to_nwell, well_spacing)
except AttributeError:
pass
dff_pitch = self.dff.width + well_spacing + self.well_extend_active
for row in range(self.rows):
for col in range(self.columns):
name = "Xdff_r{0}_c{1}".format(row, col)
# name = "Xdff_r{0}_c{1}".format(row, col)
if (row % 2 == 0):
base = vector(col * dff_pitch, row * self.dff.height)
mirror = "R0"
@@ -141,8 +152,17 @@ class dff_buf_array(design.design):
dout_bar_name = "dout_bar_{0}_{1}".format(row, col)
return dout_bar_name
def add_layout_pins(self):
def route_supplies(self):
for row in range(self.rows):
vdd0_pin=self.dff_insts[row, 0].get_pin("vdd")
vddn_pin=self.dff_insts[row, self.columns - 1].get_pin("vdd")
self.add_path(vdd0_pin.layer, [vdd0_pin.lc(), vddn_pin.rc()], width=vdd0_pin.height())
gnd0_pin=self.dff_insts[row, 0].get_pin("gnd")
gndn_pin=self.dff_insts[row, self.columns - 1].get_pin("gnd")
self.add_path(gnd0_pin.layer, [gnd0_pin.lc(), gndn_pin.rc()], width=gnd0_pin.height())
for row in range(self.rows):
for col in range(self.columns):
# Continous vdd rail along with label.
@@ -152,6 +172,8 @@ class dff_buf_array(design.design):
# Continous gnd rail along with label.
gnd_pin=self.dff_insts[row, col].get_pin("gnd")
self.add_power_pin("gnd", gnd_pin.lc())
def add_layout_pins(self):
for row in range(self.rows):
for col in range(self.columns):