Merge branch 'master' of code.stanford.edu:ee272/skywater-digital-flow

GcdUnit/design/cadence-innovus-signoff/configure.yml

@@ -61,6 +61,7 @@ commands:
 
 parameters:
   order:
+    - fill-decap.tcl
     - main.tcl
     - generate-results.tcl
     - reporting.tcl

GcdUnit/design/cadence-innovus-signoff/scripts/fill-decap.tcl

+# Replace some fillers with decaps to meet density requirements
+
+# Set the desired core VDD/VSS decap value for the entire design
+set core_decap_value_pF 1000
+# Capacitance were values obtained in simulation from RC -3dB corner (commands expect fF)
+
+set decap_cells [list sky130_fd_sc_hd__decap_12 \
+                      sky130_fd_sc_hd__decap_8 \
+                      sky130_fd_sc_hd__decap_6 \
+                      sky130_fd_sc_hd__decap_4 \
+                      sky130_fd_sc_hd__decap_3 \
+                ]
+# these values may not be correct for sky130, but it is okay
+set decap_values_fF [list 531.681 255.288 128.376 56.747 11.216]
+# Populate decap candidates
+foreach capname $decap_cells capvalue $decap_values_fF {
+    addDeCapCellCandidates $capname $capvalue
+}
+# Add decap in between filler (requires earlier call to setFillerMode)
+deleteFiller
+addDeCap -totCap [expr $core_decap_value_pF * 1000] -cells $decap_cells -prefix DECAP
+addFiller
\ No newline at end of file

GcdUnit/design/construct.py

@@ -223,7 +223,7 @@ def construct():
   
   # DRC, LVS, timing signoff and power signoff
   g.connect_by_name( gdsmerge,        magic_drc       )
-  g.connect_by_name( signoff,         magic_antenna   )
+  g.connect_by_name( gdsmerge,        magic_antenna   )
 
   # LVS using DEF
   g.connect_by_name( signoff,         magic_def2spice )

GcdUnit/design/open-magic-antenna/configure.yml

@@ -12,7 +12,7 @@ name: open-magic-antenna
 #-------------------------------------------------------------------------
 inputs:
   - adk
-  - design.def.gz
+  - design_merged.gds
 
 outputs:
   - antenna_check.log
@@ -26,8 +26,4 @@ parameters:
 
 commands:
   - cp inputs/adk/magicrc .magicrc
-  - cp inputs/adk/rtk-tech.lef rtk-tech-nolicon.lef
-  - sed -i '/LAYER licon/,/END licon/d' rtk-tech-nolicon.lef
-  - cp -L inputs/design.def.gz design.def.gz 
-  - gunzip design.def.gz 
   - magic -noconsole -dnull run_antenna.tcl | tee outputs/antenna_check.log

GcdUnit/design/open-magic-antenna/run_antenna.tcl

-lef read rtk-tech-nolicon.lef
-lef read inputs/adk/stdcells.lef
+# Copied from https://github.com/efabless/caravel/blob/master/gds/antenna_on_gds.tcl
 
-def read design.def
+gds read inputs/design_merged.gds
 
 load $::env(design_name)
 
-# Extract for LVS
+select top cell
 extract do local
 extract no capacitance
 extract no coupling
@@ -14,6 +13,8 @@ extract no adjust
 extract unique
 extract
 
+feedback save ./outputs/antenna.feedback.txt
+
 antennacheck debug
 antennacheck