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Fix offsets for ring

This commit is contained in:
mrg 2021-05-25 15:04:59 -07:00
parent e611f66767
commit 6de5787e58
2 changed files with 32 additions and 18 deletions
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8
compiler/router/grid.py
View File

@ -132,25 +132,25 @@ class grid:
# Add the left/right columns
if side=="all" or side=="left":
for x in range(self.ll.x + offset, self.ll.x + width + offset, 1):
for y in range(self.ll.y + margin, self.ur.y - margin, 1):
for y in range(self.ll.y + offset + margin, self.ur.y - offset - margin, 1):
for layer in layers:
perimeter_list.append(vector3d(x, y, layer))
if side=="all" or side=="right":
for x in range(self.ur.x - width - offset, self.ur.x - offset, 1):
for y in range(self.ll.y + margin, self.ur.y - margin, 1):
for y in range(self.ll.y + offset + margin, self.ur.y - offset - margin, 1):
for layer in layers:
perimeter_list.append(vector3d(x, y, layer))
if side=="all" or side=="bottom":
for y in range(self.ll.y + offset, self.ll.y + width + offset, 1):
for x in range(self.ll.x + margin, self.ur.x - margin, 1):
for x in range(self.ll.x + offset + margin, self.ur.x - offset - margin, 1):
for layer in layers:
perimeter_list.append(vector3d(x, y, layer))
if side=="all" or side=="top":
for y in range(self.ur.y - width - offset, self.ur.y - offset, 1):
for x in range(self.ll.x + margin, self.ur.x - margin, 1):
for x in range(self.ll.x + offset + margin, self.ur.x - offset - margin, 1):
for layer in layers:
perimeter_list.append(vector3d(x, y, layer))

42
compiler/router/router.py
View File

@ -75,6 +75,9 @@ class router(router_tech):
self.margin = margin
self.init_bbox(bbox, margin)
# New pins if we create a ring or side pins or etc.
self.new_pins = {}
def init_bbox(self, bbox=None, margin=0):
"""
Initialize the ll,ur values with the paramter or using the layout boundary.
@ -907,18 +910,23 @@ class router(router_tech):
layers=[1]))
pg.enclosures = pg.compute_enclosures()
pg.pins = set(pg.enclosures)
self.cell.pin_map[name].update(pg.pins)
self.pin_groups[name].append(pg)
self.new_pins[name] = pg.pins
def add_ring_supply_pin(self, name, width=2):
"""
Adds a ring supply pin
Adds a ring supply pin that goes inside the given bbox.
"""
pg = pin_group(name, [], self)
# Offset the vdd inside one ring width
# Units are in routing grids
if name == "vdd":
offset = width
offset = width + 1
else:
offset = 0
offset = 1
# LEFT
left_grids = set(self.rg.get_perimeter_list(side="left",
@ -946,23 +954,29 @@ class router(router_tech):
offset=offset,
layers=[0]))
# The big pin group
pg.grids = left_grids | right_grids | top_grids | bottom_grids
pg.enclosures = pg.compute_enclosures()
pg.pins = set(pg.enclosures)
self.cell.pin_map[name].update(pg.pins)
self.pin_groups[name].append(pg)
# Must move to the same layer
horizontal_layer_grids = left_grids | right_grids
# Must move to the same layer to find layer 1 corner grids
vertical_layer_grids = set()
for x in top_grids | bottom_grids:
vertical_layer_grids.add(vector3d(x.x, x.y, 1))
horizontal_layer_grids = left_grids | right_grids
# Add vias in the overlap points
corner_grids = vertical_layer_grids & horizontal_layer_grids
for g in corner_grids:
horizontal_corner_grids = vertical_layer_grids & horizontal_layer_grids
for g in horizontal_corner_grids:
self.add_via(g)
# The big pin group, but exclude the corners from the pins
pg.grids = (left_grids | right_grids | top_grids | bottom_grids)
pg.enclosures = pg.compute_enclosures()
pg.pins = set(pg.enclosures)
self.cell.pin_map[name].update(pg.pins)
self.pin_groups[name].append(pg)
self.new_pins[name] = pg.pins
def get_new_pins(self, name):
return self.new_pins[name]
def add_perimeter_target(self, side="all"):
"""