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Move clk up in dff arrays for supply pin access

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This commit is contained in:
Matt Guthaus
2018-10-05 08:18:38 -07:00
parent 68b30d601e
commit bb83e5f1be
3 changed files with 12 additions and 9 deletions
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compiler/modules/dff_array.py
+4 -3
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@@ -136,11 +136,12 @@ class dff_array(design.design):
# Create vertical spines to a single horizontal rail
clk_pin = self.dff_insts[0,0].get_pin("clk")
clk_ypos = 2*self.m3_pitch+self.m3_width
debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2")
self.add_layout_pin_segment_center(text="clk",
layer="metal3",
start=vector(0,self.m3_pitch+self.m3_width),
end=vector(self.width,self.m3_pitch+self.m3_width))
start=vector(0,clk_ypos),
end=vector(self.width,clk_ypos))
for col in range(self.columns):
clk_pin = self.dff_insts[0,col].get_pin("clk")
# Make a vertical strip for each column
@@ -150,7 +151,7 @@ class dff_array(design.design):
height=self.height)
# Drop a via to the M3 pin
self.add_via_center(layers=("metal2","via2","metal3"),
offset=vector(clk_pin.cx(),self.m3_pitch+self.m3_width))
offset=vector(clk_pin.cx(),clk_ypos))