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hierachy_layout: Move number of via arg to add_power_pins() 

this allows custom modules to state how many vias they need
for power rails.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann 2019-12-18 11:33:21 +01:00
parent 24546461ad
commit de6b207798
1 changed files with 3 additions and 1 deletions
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4
compiler/base/hierarchy_layout.py
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@ -1015,7 +1015,7 @@ class layout():
def add_power_pin(self, name, loc, vertical=False, start_layer="m1"):
def add_power_pin(self, name, loc, size=[1,1], vertical=False, start_layer="m1"):
"""
Add a single power pin from M3 down to M1 at the given center location.
The starting layer is specified to determine which vias are needed.
@ -1027,12 +1027,14 @@ class layout():
if start_layer=="m1":
self.add_via_center(layers=self.m1_stack,
size=size,
offset=loc,
directions=direction)
if start_layer=="m1" or start_layer=="m2":
via=self.add_via_center(layers=self.m2_stack,
size=size,
offset=loc,
directions=direction)