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Fix width of non-preferred trunk wire

This commit is contained in:
Matt Guthaus 2019-08-22 12:03:38 -07:00
parent 27ec617315
commit afaa946f9c
1 changed files with 17 additions and 15 deletions
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32
compiler/base/hierarchy_layout.py
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@ -708,29 +708,30 @@ class layout():
max_x = max([pin.center().x for pin in pins])
min_x = min([pin.center().x for pin in pins])
# Add the vertical trunk
half_minwidth = 0.5*self.vertical_width
# if we are less than a pitch, just create a non-preferred layer jog
if max_x-min_x <= pitch:
# Recalculate the far left and right of the pins for the trunk
max_x = max([pin.rx() for pin in pins])
min_x = min([pin.lx() for pin in pins])
# Add the horizontal trunk on the vertical layer!
self.add_path(layer_stack[2],[vector(min_x-half_minwidth,trunk_offset.y), vector(max_x+half_minwidth,trunk_offset.y)])
self.add_path(self.vertical_layer,[vector(min_x,trunk_offset.y), vector(max_x,trunk_offset.y)])
# Route each pin to the trunk
for pin in pins:
# No bend needed here
mid = vector(pin.center().x, trunk_offset.y)
self.add_path(layer_stack[2], [pin.center(), mid])
self.add_path(self.vertical_layer, [pin.center(), mid])
else:
# Add the horizontal trunk
self.add_path(layer_stack[0],[vector(min_x,trunk_offset.y), vector(max_x,trunk_offset.y)])
self.add_path(self.horizontal_layer,[vector(min_x,trunk_offset.y), vector(max_x,trunk_offset.y)])
trunk_mid = vector(0.5*(max_x+min_x),trunk_offset.y)
# Route each pin to the trunk
for pin in pins:
mid = vector(pin.center().x, trunk_offset.y)
self.add_path(layer_stack[2], [pin.center(), mid])
self.add_path(self.vertical_layer, [pin.center(), mid])
self.add_via_center(layers=layer_stack,
offset=mid)
@ -745,29 +746,30 @@ class layout():
max_y = max([pin.center().y for pin in pins])
min_y = min([pin.center().y for pin in pins])
# Add the vertical trunk
half_minwidth = 0.5*self.horizontal_width
# if we are less than a pitch, just create a non-preferred layer jog
if max_y-min_y <= pitch:
# Recalculate the far left and right of the pins for the trunk
max_y = max([pin.uy() for pin in pins])
min_y = min([pin.by() for pin in pins])
# Add the horizontal trunk on the vertical layer!
self.add_path(layer_stack[0],[vector(trunk_offset.x,min_y-half_minwidth), vector(trunk_offset.x,max_y+half_minwidth)])
# Add the vertical trunk on the horizontal layer!
self.add_path(self.horizontal_layer,[vector(trunk_offset.x,min_y), vector(trunk_offset.x,max_y)])
# Route each pin to the trunk
for pin in pins:
# No bend needed here
mid = vector(trunk_offset.x, pin.center().y)
self.add_path(layer_stack[0], [pin.center(), mid])
self.add_path(self.horizontal_layer, [pin.center(), mid])
else:
# Add the vertical trunk
self.add_path(layer_stack[2],[vector(trunk_offset.x,min_y), vector(trunk_offset.x,max_y)])
self.add_path(self.vertical_layer,[vector(trunk_offset.x,min_y), vector(trunk_offset.x,max_y)])
trunk_mid = vector(trunk_offset.x,0.5*(max_y+min_y),)
# Route each pin to the trunk
for pin in pins:
mid = vector(trunk_offset.x, pin.center().y)
self.add_path(layer_stack[0], [pin.center(), mid])
self.add_path(self.horizontal_layer, [pin.center(), mid])
self.add_via_center(layers=layer_stack,
offset=mid)