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update gf180 layer resistance with segment-based regression results #4228

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Merged
eder-matheus merged 1 commit into from
May 13, 2026
+4 −15
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update gf180 layer resistance with segment-based regression results #4228

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19 changes: 4 additions & 15 deletions flow/platforms/gf180/setRC.tcl
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Original file line number Diff line number Diff line change
@@ -1,18 +1,7 @@
# OpenRCX - RC file for OpenROAD FS
# Platform - GF180 gf180mcu-pdk
#
# NOTE: LEF contains RC values per layer

# Tech LEF has the same unit RC for all layers
# CAPACITANCE CPERSQDIST 0.0000394 ;
# RESISTANCE RPERSQ 0.090000

# These values are from five gf180 designs: ibex, jpeg, aes-hybrid, riscv32i, aes
set_layer_rc -layer Metal2 -resistance 3.85861E-04 -capacitance 1.35357E-04
set_layer_rc -layer Metal3 -resistance 2.06673E-04 -capacitance 1.46141E-04
set_layer_rc -layer Metal4 -resistance 1.68609E-04 -capacitance 1.50688E-04
set_layer_rc -layer Metal5 -resistance 7.92778E-05 -capacitance 1.55595E-04
#set_wire_rc -resistance 2.35501E-04 -capacitance 1.42149E-04
set_layer_rc -layer Metal2 -resistance 2.25636E-04 -capacitance 1.35357E-04
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set_layer_rc -layer Metal3 -resistance 2.25636E-04 -capacitance 1.46141E-04
set_layer_rc -layer Metal4 -resistance 2.25637E-04 -capacitance 1.50688E-04
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set_layer_rc -layer Metal5 -resistance 5.85545E-05 -capacitance 1.55595E-04

regexp {(\d+)} $::env(METAL_OPTION) metal

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