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OpenRAM
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Always use min area power/IO pins

This commit is contained in:
mrg 2021-01-13 13:56:46 -08:00
parent 3ef56a29ea
commit 88f2198524
1 changed files with 3 additions and 5 deletions
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8
compiler/base/hierarchy_layout.py
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@ -56,8 +56,6 @@ class layout():
self.visited = [] self.visited = []
# Flag for library cells # Flag for library cells
self.is_library_cell = False self.is_library_cell = False
# Flag for top level (used for min area metal pins etc.)
self.is_top_level = False
self.gds_read() self.gds_read()
@ -1222,7 +1220,7 @@ class layout():
pin.height()) pin.height())
elif add_vias: elif add_vias:
self.add_power_pin(pin) self.copy_power_pin(pin)
def add_io_pin(self, instance, pin_name, new_name, start_layer=None): def add_io_pin(self, instance, pin_name, new_name, start_layer=None):
""" """
@ -1239,7 +1237,7 @@ class layout():
def add_power_pin(self, name, loc, directions=None, start_layer="m1"): def add_power_pin(self, name, loc, directions=None, start_layer="m1"):
# Hack for min area # Hack for min area
if OPTS.tech_name == "sky130" and self.is_top_level: if OPTS.tech_name == "sky130":
min_area = drc["minarea_{}".format(self.pwr_grid_layer)] min_area = drc["minarea_{}".format(self.pwr_grid_layer)]
width = round_to_grid(sqrt(min_area)) width = round_to_grid(sqrt(min_area))
height = round_to_grid(min_area / width) height = round_to_grid(min_area / width)
@ -1280,7 +1278,7 @@ class layout():
loc = pin.center() loc = pin.center()
# Hack for min area # Hack for min area
if OPTS.tech_name == "sky130" and self.is_top_level: if OPTS.tech_name == "sky130":
min_area = drc["minarea_{}".format(self.pwr_grid_layer)] min_area = drc["minarea_{}".format(self.pwr_grid_layer)]
width = round_to_grid(sqrt(min_area)) width = round_to_grid(sqrt(min_area))
height = round_to_grid(min_area / width) height = round_to_grid(min_area / width)