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Fix spacing rule for non-max-width layer in router_tech

This commit is contained in:
Eren Dogan 2023-07-23 18:45:02 -07:00
parent 542e1a5e03
commit 7119f9a131
1 changed files with 20 additions and 12 deletions
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32
compiler/router/router_tech.py
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@ -67,6 +67,11 @@ class router_tech:
self.vert_layer_minwidth = max(self.vert_layer_minwidth, max_via_size)
self.horiz_layer_minwidth = max(self.horiz_layer_minwidth, max_via_size)
# Update spacing for the new widths
max_width = max(self.vert_layer_minwidth, self.horiz_layer_minwidth)
self.vert_layer_spacing = self.get_layer_space(1, max_width)
self.horiz_layer_spacing = self.get_layer_space(0, max_width)
self.horiz_track_width = self.horiz_layer_minwidth + self.horiz_layer_spacing
self.vert_track_width = self.vert_layer_minwidth + self.vert_layer_spacing
@ -114,18 +119,21 @@ class router_tech:
These are the width and spacing of a supply layer given a supply rail
of the given number of min wire widths.
"""
if zindex==1:
layer_name = self.vert_layer_name
elif zindex==0:
layer_name = self.horiz_layer_name
else:
debug.error("Invalid zindex for track", -1)
min_wire_width = drc("minwidth_{0}".format(layer_name), 0, math.inf)
min_width = self.route_track_width * drc("minwidth_{0}".format(layer_name), self.route_track_width * min_wire_width, math.inf)
min_spacing = drc(str(layer_name)+"_to_"+str(layer_name), self.route_track_width * min_wire_width, math.inf)
min_width = self.get_layer_width(zindex)
min_spacing = self.get_layer_space(zindex, min_width)
return (min_width, min_spacing)
def get_layer_width(self, zindex):
""" """
layer_name = self.get_layer(zindex)
min_wire_width = drc("minwidth_{0}".format(layer_name), 0, math.inf)
min_width = self.route_track_width * drc("minwidth_{0}".format(layer_name), self.route_track_width * min_wire_width, math.inf)
return min_width
def get_layer_space(self, zindex, width):
""" """
if width is None:
width = self.get_layer_width(zindex)
layer_name = self.get_layer(zindex)
min_spacing = drc(str(layer_name)+"_to_"+str(layer_name), self.route_track_width * width, math.inf)
return min_spacing