update min distance between io pins for sky130hd/aes

Signed-off-by: Eder Monteiro <[email protected]>

Author: eder-matheus

flow/designs/sky130hd/aes/config.mk

@@ -5,7 +5,9 @@ export PLATFORM    = sky130hd
 export VERILOG_FILES = $(sort $(wildcard ./designs/src/$(DESIGN_NICKNAME)/*.v))
 export SDC_FILE      = ./designs/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.sdc
 
-export CORE_UTILIZATION = 20 
+export PLACE_PINS_ARGS = -min_distance 4 -min_distance_in_tracks
+
+export CORE_UTILIZATION = 20
 export CORE_ASPECT_RATIO = 1
 export CORE_MARGIN = 2
 

flow/scripts/global_route.tcl

@@ -24,7 +24,7 @@ if {[info exist env(FASTROUTE_TCL)]} {
 global_route -guide_file $env(RESULTS_DIR)/route.guide \
                -congestion_report_file $env(REPORTS_DIR)/congestion.rpt \
                {*}[expr {[info exists ::env(GLOBAL_ROUTE_ARGS)] ? $::env(GLOBAL_ROUTE_ARGS) : \
-               {-congestion_iterations 50 -congestion_report_iter_step 5 -verbose}}]
+               {-congestion_iterations 30 -congestion_report_iter_step 5 -verbose}}]
 
 
 set_propagated_clock [all_clocks]