Changed "convert_spectre.py" to "spectre_to_spice.py". Corrected the script
to properly identify weird "spectreisms" in which resistors or capacitors
are prefixed as subcircuits with "x" but use a model which is a resistor or
capacitor. Also: Added more handling of SRAM (coreid) layers in the magic
techfile for support of OpenRAM, and added a first pass at fill pattern
generation in magic.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 9f41101..1e2861d 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -251,12 +251,14 @@
metal1 via1,m2contact,m2cut,m2c,via,v,v1
-metal1 obsm1
-metal1 padl
+ -metal1 m1fill
# Metal 2
metal2 metal2,m2,met2
-metal2 rmetal2,rm2,rmet2
metal2 via2,m3contact,m3cut,m3c,v2
-metal2 obsm2
+ -metal2 m2fill
# Metal 3
metal3 metal3,m3,met3
@@ -264,6 +266,7 @@
-metal3 obsm3
#ifdef METAL5
metal3 via3,v3
+ -metal3 m3fill
#ifdef MIM
-cap1 mimcap,mim,capm
@@ -275,6 +278,7 @@
-metal4 rmetal4,rm4,rmet4
-metal4 obsm4
metal4 via4,v4
+ -metal4 m4fill
#ifdef MIM
-cap2 mimcap2,mim2,capm2
@@ -285,6 +289,7 @@
metal5 metal5,m5,met5
-metal5 rm5,rmetal5,rmet5
-metal5 obsm5
+ -metal5 m5fill
#endif (METAL5)
#ifdef REDISTRIBUTION
@@ -518,14 +523,17 @@
obslic metal1 metal2 via1arrow
metal1 metal2
+ m1fill metal2
rm1 metal2 poly_resist_stripes
obsm1 metal2
m2c metal2 metal3 via2arrow
metal2 metal3
+ m2fill metal3
rm2 metal3 poly_resist_stripes
obsm2 metal3
m3c metal3 metal4 via3alt
metal3 metal4
+ m3fill metal4
rm3 metal4 poly_resist_stripes
obsm3 metal4
#ifdef METAL5
@@ -537,10 +545,12 @@
#endif (MIM)
via3 metal4 metal5 via4
metal4 metal5
+ m4fill metal5
rm4 metal5 poly_resist_stripes
obsm4 metal5
via4 metal5 metal6 via5
metal5 metal6
+ m5fill metal6
rm5 metal6 poly_resist_stripes
obsm5 metal6
#endif (METAL5)
@@ -635,12 +645,12 @@
*nwell,*nsd,*mvnsd,dnwell *nwell,*nsd,*mvnsd,dnwell
pwell,*psd,*mvpsd pwell,*psd,*mvpsd
*li,coreli *li,coreli
- *m1 *m1
- *m2 *m2
- *m3 *m3
+ *m1,m1fill *m1,m1fill
+ *m2,m2fill *m2,m2fill
+ *m3,m3fill *m3,m3fill
#ifdef METAL5
- *m4 *m4
- *m5 *m5
+ *m4,m4fill *m4,m4fill
+ *m5,m5fill *m5,m5fill
#ifdef MIM
*mimcap *mimcap
*mimcap2 *mimcap2
@@ -1031,7 +1041,7 @@
#----------------------------------------------------------------
# MET1
#----------------------------------------------------------------
- layer MET1 allm1
+ layer MET1 allm1,m1fill
calma 68 20
layer MET1TXT
@@ -1056,7 +1066,7 @@
#----------------------------------------------------------------
# MET2
#----------------------------------------------------------------
- layer MET2 allm2
+ layer MET2 allm2,m2fill
calma 69 20
layer MET2TXT
@@ -1081,7 +1091,7 @@
#----------------------------------------------------------------
# MET3
#----------------------------------------------------------------
- layer MET3 allm3
+ layer MET3 allm3,m3fill
calma 70 20
layer MET3TXT
@@ -1110,7 +1120,7 @@
#----------------------------------------------------------------
# MET4
#----------------------------------------------------------------
- layer MET4 allm4
+ layer MET4 allm4,m4fill
calma 71 20
layer MET4TXT
@@ -1138,7 +1148,7 @@
#----------------------------------------------------------------
# MET5
#----------------------------------------------------------------
- layer MET5 allm5
+ layer MET5 allm5,m5fill
calma 72 20
layer MET5TXT
@@ -1467,26 +1477,356 @@
style wafflefill
#----------------------------------------------------------------
# Style used by scripts for automatically generating fill layers
-# (under development)
#----------------------------------------------------------------
scalefactor 10 nanometers
options calma-permissive-labels
gridlimit 5
#---------------------------------------------------
-# MET1 fill (under development)
+# FOM fill (under development)
#---------------------------------------------------
- templayer slots_m1
- bbox top
- slots 33400 1150 1650 46000 13350 14650
- templayer obstruct_m1 allm1,allpad,obsm1
- grow 800
- shrink 500
+ templayer slots_fom_pass1
+ bbox top
+ slots 0 4080 1320 0 4080 1320 1360 0
+ templayer obstruct_fom_pass1 alldiff,allpoly,rpw
grow 500
- layer met1fill slots_m1
- and-not obstruct_m1
- shrink 550
- grow 550
+ templayer fomfill_pass1 slots_fom_pass1
+ and-not obstruct_fom_pass1
+ shrink 2035
+ grow 2035
+
+ templayer slots_fom_pass2
+ bbox top
+ slots 0 2500 1320 0 2500 1320 1360 0
+ templayer obstruct_fom_pass2 fomfill_pass1
+ grow 820
+ or alldiff,allpoly,rpw
+ grow 500
+ templayer fomfill_pass2 slots_fom_pass2
+ and-not obstruct_fom_pass2
+ shrink 1245
+ grow 1245
+
+ templayer slots_fom_coarse
+ bbox top
+ slots 0 1500 1320 0 1500 1320 1360 0
+ templayer obstruct_fom_coarse fomfill_pass1,fomfill_pass2
+ grow 820
+ or alldiff,allpoly,rpw
+ grow 500
+ templayer fomfill_coarse slots_fom_coarse
+ and-not obstruct_fom_coarse
+ shrink 745
+ grow 745
+
+ templayer slots_fom_fine
+ bbox top
+ slots 0 500 400 0 500 400 160 0
+ templayer obstruct_fom_fine fomfill_pass1,fomfill_pass2,fomfill_coarse
+ grow 820
+ or alldiff,allpoly,rpw
+ grow 500
+ templayer fomfill_fine slots_fom_fine
+ and-not obstruct_fom_fine
+ shrink 245
+ grow 245
+
+ layer FOMMASK fomfill_pass1
+ or fomfill_pass2
+ or fomfill_coarse
+ or fomfill_fine
+ calma 23 0
+
+#---------------------------------------------------
+# POLY fill (under development)
+#---------------------------------------------------
+ templayer slots_poly_pass1
+ bbox top
+ slots 0 720 360 0 720 360 240 0
+ templayer obstruct_poly_pass1 alldiff,allpoly,rpw
+ grow 1000
+ templayer polyfill_pass1 slots_poly_pass1
+ and-not obstruct_poly_pass1
+ shrink 355
+ grow 355
+
+ templayer slots_poly_coarse
+ bbox top
+ slots 0 720 360 0 720 360 240 120
+ templayer obstruct_poly_coarse alldiff,allpoly,rpw
+ grow 640
+ or polyfill_pass1
+ grow 360
+ templayer polyfill_coarse slots_poly_coarse
+ and-not obstruct_poly_coarse
+ shrink 355
+ grow 355
+
+ templayer slots_poly_medium
+ bbox top
+ slots 0 540 360 0 540 360 240 100
+ templayer obstruct_poly_medium alldiff,allpoly,rpw
+ grow 650
+ or polyfill_pass1,polyfill_coarse
+ grow 360
+ templayer polyfill_medium slots_poly_medium
+ and-not obstruct_poly_medium
+ shrink 265
+ grow 265
+
+ templayer slots_poly_fine
+ bbox top
+ slots 0 480 360 0 480 360 240 200
+ templayer obstruct_poly_fine alldiff,allpoly,rpw
+ grow 650
+ or polyfill_pass1,polyfill_coarse,polyfill_medium
+ grow 360
+ templayer polyfill_fine slots_poly_fine
+ and-not obstruct_poly_fine
+ shrink 235
+ grow 235
+
+ layer POLYMASK polyfill_pass1
+ or polyfill_coarse
+ or polyfill_medium
+ or polyfill_fine
+ calma 28 0
+
+#---------------------------------------------------
+# MET1 fill
+#---------------------------------------------------
+ templayer slots_m1_coarse
+ bbox top
+ slots 0 2000 200 0 2000 200 700 0
+ templayer obstruct_m1_coarse allm1,allpad,obsm1,m1fill,fillblock
+ grow 3000
+ templayer met1fill_coarse slots_m1_coarse
+ and-not obstruct_m1_coarse
+ shrink 995
+ grow 995
+
+ templayer slots_m1_medium
+ bbox top
+ slots 0 1000 200 0 1000 200 700 0
+ templayer obstruct_m1_medium allm1,allpad,obsm1,m1fill,fillblock
+ grow 2800
+ or met1fill_coarse
+ grow 200
+ templayer met1fill_medium slots_m1_medium
+ and-not obstruct_m1_medium
+ shrink 495
+ grow 495
+
+ templayer slots_m1_fine
+ bbox top
+ slots 0 580 200 0 580 200 700 0
+ templayer obstruct_m1_fine allm1,allpad,obsm1,m1fill,fillblock
+ grow 300
+ or met1fill_coarse,met1fill_medium
+ grow 200
+ templayer met1fill_fine slots_m1_fine
+ and-not obstruct_m1_fine
+ shrink 285
+ grow 285
+
+ templayer slots_m1_veryfine
+ bbox top
+ slots 0 300 200 0 300 200 100 50
+ templayer obstruct_m1_veryfine allm1,allpad,obsm1,m1fill,fillblock
+ grow 100
+ or met1fill_coarse,met1fill_medium,met1fill_fine
+ grow 200
+ templayer met1fill_veryfine slots_m1_veryfine
+ and-not obstruct_m1_veryfine
+ shrink 145
+ grow 145
+
+ layer MET1MASK met1fill_coarse
+ or met1fill_medium
+ or met1fill_fine
+ or met1fill_veryfine
+ calma 36 0
+
+#---------------------------------------------------
+# MET2 fill
+#---------------------------------------------------
+ templayer slots_m2_coarse
+ bbox top
+ slots 0 2000 200 0 2000 200 700 350
+ templayer obstruct_m2 allm2,allpad,obsm2,m2fill,fillblock
+ grow 3000
+ templayer met2fill_coarse slots_m2_coarse
+ and-not obstruct_m2
+ shrink 995
+ grow 995
+
+ templayer slots_m2_medium
+ bbox top
+ slots 0 1000 200 0 1000 200 700 350
+ templayer obstruct_m2_medium allm2,allpad,obsm2,m2fill,fillblock
+ grow 2800
+ or met2fill_coarse
+ grow 200
+ templayer met2fill_medium slots_m2_medium
+ and-not obstruct_m2_medium
+ shrink 495
+ grow 495
+
+ templayer slots_m2_fine
+ bbox top
+ slots 0 580 200 0 580 200 700 350
+ templayer obstruct_m2_fine allm2,allpad,obsm2,m2fill,fillblock
+ grow 300
+ or met2fill_coarse,met2fill_medium
+ grow 200
+ templayer met2fill_fine slots_m2_fine
+ and-not obstruct_m2_fine
+ shrink 285
+ grow 285
+
+ templayer slots_m2_veryfine
+ bbox top
+ slots 0 300 200 0 300 200 100 100
+ templayer obstruct_m2_veryfine allm2,allpad,obsm2,m2fill,fillblock
+ grow 100
+ or met2fill_coarse,met2fill_medium,met2fill_fine
+ grow 200
+ templayer met2fill_veryfine slots_m2_veryfine
+ and-not obstruct_m2_veryfine
+ shrink 145
+ grow 145
+
+ layer MET2MASK met2fill_coarse
+ or met2fill_medium
+ or met2fill_fine
+ or met2fill_veryfine
+ calma 41 0
+
+#---------------------------------------------------
+# MET3 fill
+#---------------------------------------------------
+ templayer slots_m3_coarse
+ bbox top
+ slots 0 2000 300 0 2000 300 700 700
+ templayer obstruct_m3 allm3,allpad,obsm3,m3fill,fillblock
+ grow 3000
+ templayer met3fill_coarse slots_m3_coarse
+ and-not obstruct_m3
+ shrink 995
+ grow 995
+
+ templayer slots_m3_medium
+ bbox top
+ slots 0 1000 300 0 1000 300 700 700
+ templayer obstruct_m3_medium allm3,allpad,obsm3,m3fill,fillblock
+ grow 2700
+ or met3fill_coarse
+ grow 300
+ templayer met3fill_medium slots_m3_medium
+ and-not obstruct_m3_medium
+ shrink 495
+ grow 495
+
+ templayer slots_m3_fine
+ bbox top
+ slots 0 580 300 0 580 300 700 700
+ templayer obstruct_m3_fine allm3,allpad,obsm3,m3fill,fillblock
+ grow 200
+ or met3fill_coarse,met3fill_medium
+ grow 300
+ templayer met3fill_fine slots_m3_fine
+ and-not obstruct_m3_fine
+ shrink 285
+ grow 285
+
+ templayer slots_m3_veryfine
+ bbox top
+ slots 0 400 300 0 400 300 150 200
+ templayer obstruct_m3_veryfine allm3,allpad,obsm3,m3fill,fillblock
+ or met3fill_coarse,met3fill_medium,met3fill_fine
+ grow 300
+ templayer met3fill_veryfine slots_m3_veryfine
+ and-not obstruct_m3_veryfine
+ shrink 195
+ grow 195
+
+ layer MET3MASK met3fill_coarse
+ or met3fill_medium
+ or met3fill_fine
+ or met3fill_veryfine
+ calma 34 0
+
+#ifdef METAL5
+#---------------------------------------------------
+# MET4 fill
+#---------------------------------------------------
+ templayer slots_m4_coarse
+ bbox top
+ slots 0 2000 300 0 2000 300 700 1050
+ templayer obstruct_m4 allm4,allpad,obsm4,m4fill,fillblock
+ grow 3000
+ templayer met4fill_coarse slots_m4_coarse
+ and-not obstruct_m4
+ shrink 995
+ grow 995
+
+ templayer slots_m4_medium
+ bbox top
+ slots 0 1000 300 0 1000 300 700 1050
+ templayer obstruct_m4_medium allm4,allpad,obsm4,m4fill,fillblock
+ grow 2700
+ or met4fill_coarse
+ grow 300
+ templayer met4fill_medium slots_m4_medium
+ and-not obstruct_m4_medium
+ shrink 495
+ grow 495
+
+ templayer slots_m4_fine
+ bbox top
+ slots 0 580 300 0 580 300 700 1050
+ templayer obstruct_m4_fine allm4,allpad,obsm4,m4fill,fillblock
+ grow 200
+ or met4fill_coarse,met4fill_medium
+ grow 300
+ templayer met4fill_fine slots_m4_fine
+ and-not obstruct_m4_fine
+ shrink 285
+ grow 285
+
+ templayer slots_m4_veryfine
+ bbox top
+ slots 0 400 300 0 400 300 150 300
+ templayer obstruct_m4_veryfine allm4,allpad,obsm4,m4fill,fillblock
+ or met4fill_coarse,met4fill_medium,met4fill_fine
+ grow 300
+ templayer met4fill_veryfine slots_m4_veryfine
+ and-not obstruct_m4_veryfine
+ shrink 195
+ grow 195
+
+ layer MET4MASK met4fill_coarse
+ or met4fill_medium
+ or met4fill_fine
+ or met4fill_veryfine
+ calma 51 0
+
+#---------------------------------------------------
+# MET5 fill
+#---------------------------------------------------
+ templayer slots_m5
+ bbox top
+ slots 0 3000 1600 0 3000 1600 1000 100
+ templayer obstruct_m5 allm5,allpad,obsm5,m5fill,fillblock
+ grow 3000
+ templayer met5fill_gen slots_m5
+ and-not obstruct_m5
+ shrink 1495
+ grow 1495
+
+ layer MET5MASK met5fill_gen
+ calma 59 0
+#endif (METAL5)
end
@@ -2426,6 +2766,9 @@
and MET1RES,MET1SHORT
labels MET1RES,MET1SHORT
+ layer m1fill MET1FILL
+ labels MET1FILL
+
#ifdef MIM
layer mimcap MET3
and CAPM
@@ -2471,6 +2814,9 @@
and MET2RES,MET2SHORT
labels MET2RES,MET2SHORT
+ layer m2fill MET2FILL
+ labels MET2FILL
+
templayer m3cbase VIA2
grow 40
@@ -2494,6 +2840,9 @@
and MET3RES,MET3SHORT
labels MET3RES,MET3SHORT
+ layer m3fill MET3FILL
+ labels MET3FILL
+
#ifdef (METAL5)
templayer via3base VIA3
@@ -2522,6 +2871,9 @@
and MET4RES,MET4SHORT
labels MET4RES,MET4SHORT
+ layer m4fill MET4FILL
+ labels MET4FILL
+
layer m5 MET5,MET5TXT,MET5PIN
and-not MET5RES,MET5SHORT
labels MET5
@@ -2532,6 +2884,9 @@
and MET5RES,MET5SHORT
labels MET5RES,MET5SHORT
+ layer m5fill MET5FILL
+ labels MET5FILL
+
templayer via4base VIA4
#ifdef MIM
and-not CAPM2
@@ -2890,6 +3245,14 @@
calma MET5RES 72 13
#endif
+ calma MET1FILL 68 28
+ calma MET2FILL 69 28
+ calma MET3FILL 70 28
+#ifdef METAL5
+ calma MET4FILL 71 28
+ calma MET5FILL 72 28
+#endif
+
calma POLYSHORT 66 15
calma LISHORT 67 15
calma MET1SHORT 68 15
@@ -3294,6 +3657,7 @@
#ifdef METAL5
+#undef METAL5
#--------------------------------------------------
# VIA3 - Requires METAL5 Module
#--------------------------------------------------
@@ -3343,6 +3707,7 @@
spacing allm5 allm5,obsm5 1600 touching_ok "Metal5 spacing < %d (Met5 2)"
area allm5,obsm5 4000000 1600 "Metal5 minimum area < %a (Met5 4)"
+#define METAL5
#endif (METAL5)
#ifdef REDISTRIBUTION
