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Skip partial pins if they are too small to prevent DRC overlap errors.

This commit is contained in:
mrg 2022-05-02 16:07:05 -07:00
parent b1bb9151c4
commit 3e48991acb
1 changed files with 13 additions and 3 deletions
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16
compiler/router/router.py
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@ -674,16 +674,26 @@ class router(router_tech):
"""
Return a list of pin shape parts that are in the tracks.
"""
# If pin is smaller than a track, just return it.
track_pin = self.convert_track_to_shape_pin(list(tracks)[0])
if pin.width() < track_pin.width() and pin.height() < track_pin.height():
return [pin]
overlap_pins = []
for track in tracks:
track_pin = self.convert_track_to_shape_pin(track)
overlap_rect = track_pin.intersection(pin)
if not overlap_rect:
continue
overlap_pin = pin_layout(pin.name,
overlap_rect,
pin.layer)
# If pin is smaller than minwidth, in one dimension, skip it.
min_pin_width = drc("minwidth_{0}". format(pin.layer))
if overlap_pin.width() < min_pin_width and overlap_pin.height() < min_pin_width:
continue
else:
overlap_pin = pin_layout(pin.name,
overlap_rect,
pin.layer)
overlap_pins.append(overlap_pin)
return overlap_pins