Merge pull request #3244 from jeffng-or/asap7-cva6-slvt-for-cts

asap7 cva6 - switch to use SLVT library for CTS

Author: maliberty

flow/designs/asap7/cva6/config.mk

@@ -88,10 +88,10 @@ export ADDITIONAL_LIBS = $(PLATFORM_DIR)/lib/NLDM/fakeram7_64x256.lib \
 
 export SDC_FILE               = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/constraint.sdc
 
-export CORE_UTILIZATION       = 40
+export CORE_UTILIZATION       = 50
 export CORE_MARGIN            = 2
 export MACRO_HALO             = 5
-export PLACE_DENSITY          = 0.50
+export PLACE_DENSITY          = 0.64
 
 # a smoketest for this option, there are a
 # few last gasp iterations
@@ -101,3 +101,7 @@ export SKIP_LAST_GASP ?= 1
 export SYNTH_MINIMUM_KEEP_SIZE ?= 40000
 
 export SYNTH_HDL_FRONTEND = slang
+
+export ASAP7_USE_VT = RVT LVT SLVT
+
+export CTS_LIB_NAME = asap7sc7p5t_INVBUF_SLVT_FF_nldm_211120

flow/designs/asap7/cva6/rules-base.json

@@ -1,38 +1,38 @@
 {
     "synth__design__instance__area__stdcell": {
-        "value": 19930.01,
+        "value": 19725.15,
         "compare": "<="
     },
     "constraints__clocks__count": {
         "value": 1,
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 23688,
+        "value": 20743,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 152015,
+        "value": 137118,
         "compare": "<="
     },
     "detailedplace__design__violations": {
         "value": 0,
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 13219,
+        "value": 11923,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 13219,
+        "value": 11923,
         "compare": "<="
     },
     "globalroute__antenna_diodes_count": {
         "value": 0,
         "compare": "<="
     },
     "detailedroute__route__wirelength": {
-        "value": 1332082,
+        "value": 1124948,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -48,23 +48,23 @@
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -147.23,
+        "value": -68.36,
         "compare": ">="
     },
     "finish__design__instance__area": {
-        "value": 23925,
+        "value": 20933,
         "compare": "<="
     },
     "finish__timing__drv__setup_violation_count": {
-        "value": 6609,
+        "value": 5962,
         "compare": "<="
     },
     "finish__timing__drv__hold_violation_count": {
         "value": 100,
         "compare": "<="
     },
     "finish__timing__wns_percent_delay": {
-        "value": -16.08,
+        "value": -10.27,
         "compare": ">="
     }
 }