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caravel
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Reworked part of the layouts of both caravel and caravan to move 

the clocking subcircuit from inside the pad area near the "clock"
pin to under the DLL.  This prevents the DLL from having its
outputs travel all the way across the chip to reach the clocking
cell and then have the multiplexed clock travel all the way back,
especially as the DLL outputs are high-speed signals (up to 150
MHz).
This commit is contained in:
Tim Edwards 2021-12-02 20:45:39 -05:00
parent 024801ab56
commit 2691903104
6 changed files with 1339 additions and 1411 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1167
mag/caravan.mag
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mag/caravan_power_routing.mag
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@ -1,7 +1,7 @@
magic
tech sky130A
magscale 1 2
timestamp 1637791793
timestamp 1638483672
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<< comment >>
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@ -1826,8 +1787,6 @@ flabel metal5 664092 267180 666518 267904 0 FreeSans 3200 0 0 0 vssa1_core
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flabel metal5 639514 76786 640576 77484 0 FreeSans 4800 0 0 0 vccd_core
<< end >>

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@ -1,7 +1,7 @@
magic
tech sky130A
magscale 1 2
timestamp 1637790566
timestamp 1638492834
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rect 602390 47188 605390 79938
rect 625618 75868 627034 89012
rect 643544 85474 646544 93154
rect 650994 92590 653994 95956
rect 666426 93406 669426 105300
@ -3210,9 +3178,6 @@ rect 662504 89822 669426 90142
rect 641968 85154 646544 85474
rect 643544 81082 646544 85154
rect 666426 81082 669426 89822
rect 602390 79938 602454 80438
rect 605324 79938 605390 80438
rect 602390 47188 605390 79938
rect 632002 80900 669426 81082
rect 632002 80776 640210 80900
rect 632002 78326 632200 80776
@ -3220,6 +3185,46 @@ rect 632864 78326 640210 80776
rect 632002 78256 640210 78326
rect 640810 78256 669426 80900
rect 632002 78082 669426 78256
rect 645256 77268 647084 78082
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rect 629786 77208 633018 77222
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rect 634814 74904 640764 74908
rect 631720 74900 640764 74904
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rect 644128 74926 644188 75832
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rect 625618 74868 644188 74900
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rect 666426 47282 669426 78082
rect 602390 47124 649668 47188
rect 602390 46788 648166 47124
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rect 255638 42856 605396 45788
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rect 46836 42788 605396 42842
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rect 221534 18528 237824 18544
rect 218426 18516 237824 18528
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rect 205820 18472 237824 18506
rect 204580 18036 224806 18072
rect 204580 18018 222828 18036
rect 204580 18014 216622 18018
rect 204580 18010 213514 18014
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rect 204580 17104 210420 17128
rect 210682 17108 213514 18010
rect 213776 17112 216622 18014
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rect 210682 17104 219726 17108
rect 219988 17130 222828 18010
rect 223090 17130 224806 18036
rect 219988 17104 224806 17130
rect 204580 17072 224806 17104
rect 204580 14000 205380 17072
rect 225246 15690 226046 18472
rect 224498 15370 226046 15690
rect 204580 13680 205930 14000
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rect 225246 12310 226046 15370
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rect 204580 10300 205808 10620
rect 204580 8096 205380 10300
rect 225246 8930 226046 11990
rect 224586 8610 226046 8930
rect 225246 7838 226046 8610
<< comment >>
rect 0 1037400 717600 1037600
rect 0 200 200 1037400
@ -3464,8 +3422,6 @@ flabel metal5 664092 267180 666518 267904 0 FreeSans 3200 0 0 0 vssa1_core
flabel metal5 667280 263142 669706 263866 0 FreeSans 3200 0 0 0 vdda1_core
flabel metal5 634330 96284 638114 98514 0 FreeSans 16000 0 0 0 vssd_core
flabel metal5 633452 78554 637236 80784 0 FreeSans 16000 0 0 0 vccd_core
flabel metal5 206106 18628 207168 19326 0 FreeSans 4800 0 0 0 vccd_core
flabel metal5 206018 17180 207080 17878 0 FreeSans 4800 0 0 0 vssd_core
flabel metal5 182024 250550 190042 253308 0 FreeSans 16000 0 0 0 vssd1_core
flabel metal5 182160 246638 190178 249396 0 FreeSans 16000 0 0 0 vccd1_core
flabel metal5 181852 266620 189870 269378 0 FreeSans 16000 0 0 0 vssa1_core
@ -3476,4 +3432,6 @@ flabel metal5 621512 258708 630212 261250 0 FreeSans 16000 0 0 0 vssa2_core
flabel metal5 621598 254668 630298 257210 0 FreeSans 16000 0 0 0 vdda2_core
flabel metal5 621936 242776 630636 245318 0 FreeSans 16000 0 0 0 vssd2_core
flabel metal5 621794 238736 630494 241278 0 FreeSans 16000 0 0 0 vccd2_core
flabel metal5 627056 74976 628118 75674 0 FreeSans 4800 0 0 0 vssd_core
flabel metal5 644752 76466 645814 77164 0 FreeSans 4800 0 0 0 vccd_core
<< end >>

14
mag/run_caravan_lvs.sh
View File

@ -1,4 +1,18 @@
#!/bin/sh
#
magic -dnull -noconsole -rcfile /usr/share/pdk/sky130A/libs.tech/magic/sky130A.magicrc << EOF
drc off
crashbackups stop
load caravan
select top cell
expand
extract do local
extract all
ext2spice lvs
ext2spice
EOF
rm *.ext
export NETGEN_COLUMNS=60
netgen -batch lvs "caravan.spice caravan" "../verilog/gl/caravan.v caravan" ./sky130A_setup.tcl comp.out

14
mag/run_caravel_lvs.sh
View File

@ -1,4 +1,18 @@
#!/bin/sh
#
magic -dnull -noconsole -rcfile /usr/share/pdk/sky130A/libs.tech/magic/sky130A.magicrc << EOF
drc off
crashbackups stop
load caravel
select top cell
expand
extract do local
extract all
ext2spice lvs
ext2spice
EOF
rm *.ext
export NETGEN_COLUMNS=60
netgen -batch lvs "caravel.spice caravel" "../verilog/gl/caravel.v caravel" ./sky130A_setup.tcl comp.out