Update openlane PDN config
- generally, children should be powered through their vertical met4
power pins
- halo calculated correctly
diff --git a/sky130/openlane/common_pdn.tcl b/sky130/openlane/common_pdn.tcl
index a7a271b..d7357a7 100644
--- a/sky130/openlane/common_pdn.tcl
+++ b/sky130/openlane/common_pdn.tcl
@@ -55,15 +55,16 @@
# A general macro that follows the premise of the set heirarchy. You may want to modify this or add other macro configs
pdngen::specify_grid macro {
orient {R0 R180 MX MY R90 R270 MXR90 MYR90}
- power_pins "VDDE"
- ground_pins "VSSE"
- blockages "li1 met1 met2 met3 met4 met5"
- straps {
- }
+ power_pins "VDD VPWR"
+ ground_pins "VSS VGND"
+ blockages "li1 met1 met2 met3 met4"
+ straps {
+ }
connect {{met4_PIN_ver met5}}
}
-set ::halo 0
+set ::halo [expr min($::env(FP_HORIZONTAL_HALO), $::env(FP_VERTICAL_HALO))]
+
# Metal layer for rails on every row
set ::rails_mlayer "met1" ;
