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OpenRAM
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75 Commits

Author SHA1 Message Date
mrg d92c7a634d Use packages for imports. 
Must set PYTHONPATH to include OPENRAM_HOME now.
Reorganizes subdirs as packages.
Rewrites unit tests to use packages.
Update README.md with instructions, dependencies etc.
Update sky130 module imports.
Change tech specific package from modules to custom.
 2022-07-13 15:55:57 -07:00
mrg ad6633ddca Update versions of tools. Fix supply bug in predecode. 2022-06-08 13:50:25 -07:00
mrg b1bb9151c4 Reimplement off grid pins. 
Long pins aren't accessed on end pins anymore.
Fix problem with multiple non-enclosed space causing blockages.
Add partial pin offgrid enclosure algorithm.
 2022-05-02 15:43:14 -07:00
mrg 5e546ee974 New power strapping mostly working. 
Each module uses M3/M4 power straps with pins on the ends.
Works in all technologies for a single no mux, dual port SRAM.
 2022-04-05 13:51:55 -07:00
mrg d69e55c2e3 Power routing changes. 
Make the power rails an "experimental_power" option and conditional.
Rename route_vdd_gnd to route_supplies everywhere for consistency.
 2022-03-06 09:56:00 -08:00
mrg 51ba88d896 Port address with vertical power stripes 2022-03-02 16:29:43 -08:00
mrg 0c3ee643ab Remove add_mod and add module whenever calling add_inst. 2021-11-22 11:33:27 -08:00
Jesse Cirimelli-Low d9afe89770 remove print statement 2021-06-17 03:23:46 -07:00
Jesse Cirimelli-Low 1ce6b4d41a fix freepdk45 2021-06-17 03:21:01 -07:00
Jesse Cirimelli-Low 25bc178132 extend input rail 2021-06-14 15:13:17 -07:00
Jesse Cirimelli-Low bee9b07516 fix decoder routing 2021-06-11 18:19:07 -07:00
Jesse Cirimelli-Low 2e72da0e53 rotate input to rail contacts for drc 2021-06-10 14:01:28 -07:00
Jesse Cirimelli-Low 3a3da9e0d7 56 drc errors on col mux 1port 2021-05-02 21:49:09 -07:00
Jesse Cirimelli-Low 33e8bce79d dynamic predecode working 2021-04-25 01:22:36 -07:00
mrg 439003e203 Respect the bus spacing parameter in predecoder. 2021-04-19 10:51:16 -07:00
mrg 671470f5f2 Skywater changes. 
Default 1 thread and no temp subdirectory.
Add skywater setup/hold golden data
Add CLI option for simulation threads (-m)
Add compatibility mode option and nomodcheck for ngspice to speed up sky130 model loading.
Make subdir when using default /tmp dir.
Pass num_threads so temp subdirs are created.
 2021-03-22 15:48:14 -07:00
Matt Guthaus 30fc81a1f0 Update copyright year. 2021-01-22 11:23:28 -08:00
mrg 01d312d65c Refactor add power pins 2021-01-13 10:57:12 -08:00
mrg a31e0dab02 Remove via-to-via path width hack 2020-12-01 13:27:32 -08:00
mrg 8be1436d51 Use OPTS.bitcell everywhere 2020-11-05 16:55:08 -08:00
mrg da721a677d Remove EOL whitespace globally 2020-11-03 06:29:17 -08:00
mrg 857f5cb136 Fix copy pasta: decoder to predecode 2020-10-28 15:46:10 -07:00
mrg 611a4155b9 Add initial custom layer properties. 2020-10-27 15:11:04 -07:00
jcirimel 4a1a7e637e merge in dev 2020-10-07 11:54:07 -07:00
mrg f8146e3f69 Add decoder4x16 2020-10-02 15:52:09 -07:00
jcirimel 3f45d10797 fix column decoder 2020-08-25 02:46:16 -07:00
jcirimel 854d51c721 merge dev 2020-08-19 14:25:41 -07:00
jcirimel b7ef5496c4 decoder drc clean 2020-08-19 00:39:55 -07:00
mrg 30976df48f Change inheritance inits to use super 2020-08-06 11:33:26 -07:00
mrg 66df659ad4 Col decoders are anything not bitcell pitch. 2020-06-25 14:25:48 -07:00
mrg f84ee04fa9 Single bank passing. 
Parameterized gate column mux of dff height.
End-cap only supply option instead of no vdd in bitcell.
 2020-06-25 14:03:59 -07:00
mrg abb5ff7bae Separate route conditions for s8 2020-06-15 10:30:27 -07:00
mrg 79b3b9a8b0 Switch input/output layers for predecodes 2020-06-15 10:06:04 -07:00
mrg 443b8fbe23 Change s8 to sky130 2020-06-12 14:23:26 -07:00
mrg 9cc36c6d3a Bus code converted to pins. Fix layers on control signal routes in bank. 2020-06-08 11:01:14 -07:00
mrg 34209dac3d A port option for correct mirroring in port_data. 2020-06-02 16:50:07 -07:00
mrg b3b03d4d39 Hard cells can accept height parameter too. 2020-06-01 16:46:00 -07:00
mrg 4a67f7dc71 Thin-cell decoder changes. 
Add hard decoder gates (nand, inv, pnan)
Add conditions for routing using LI layer in s8.
Generalize bus layers for decoders.
Move custom cells to own directory.
Fixed via directions, etc.
Add 4x16 hierarchical decoder and test case
 2020-05-29 10:36:07 -07:00
mrg b7c66d7e07 Changes to simplify metal preferred directions and pitches. 
Changes to allow decoder height to be a 2x multiple of bitcell height.
Split of control logic tests.
Fixed track spacing in SRAM and channel router
PEP8 cleanup.
 2020-05-10 11:32:45 -07:00
mrg dd73afc983 Changes to allow decoder height to be a 2x multiple of bitcell height. 
Convert to use li layer in pgates.
Fix multifinger devices with li layers.
Simplify wordline driver input routing.
Fix power pin direction option update.
PEP8 cleanup
Changes to simplify metal preferred directions and pitches.
Split of control logic tests.
 2020-05-10 06:56:22 -07:00
mrg 23501c7b35 Convert pnand+pinv to pand in decoders. 2020-03-06 13:26:40 -08:00
mrg f0ecf385e8 Nwell fixes in pgates. 
Fix minor PEP8 format fixes.
Fix nwell to be 55% of cell height.
Move contact in hierarchical decoder for DRC error.
 2020-02-06 16:20:09 +00:00
mrg 79391b84da Cleanup and rename vias. 2020-01-30 01:45:33 +00:00
Matt Guthaus ed28b4983b Clean up and generalize layer rules. 
Convert metalN to mN.
Generalize helper constants in modules for
space, width, enclose, etc.
Use layer stacks whever possible.
Try to remove drc() calls in liu of helper constants.
 2019-12-17 11:03:36 -08:00
Matt Guthaus e143a6033f Use layer stacks from tech file in design class and throughout 2019-12-13 14:13:41 -08:00
Matt Guthaus ad35f8745e Add direction to pins of all modules 2019-08-06 14:14:09 -07:00
Matt Guthaus a234b0af88 Fix space before comment 2019-06-14 08:43:41 -07:00
Matt Guthaus 0f03553689 Update copyright to correct years. 2019-05-06 06:50:15 -07:00
Matt Guthaus 3f9a987e51 Update copyright. Add header to all OpenRAM files. 2019-04-26 12:33:53 -07:00
Matt Guthaus be20408fb2 Rewrite add_contact to use layer directions. 2019-04-15 18:00:36 -07:00