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OpenRAM
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109 Commits

Author SHA1 Message Date
Eren Dogan 0a1de57cae Update copyright year 2024-01-03 14:32:44 -08:00
Eren Dogan e5fc25da6f Update copyright year 2023-01-28 22:56:27 -08:00
Eren Dogan 96e57507bf Add copyright check to code format test 2022-11-30 14:50:43 -08:00
Eren Dogan fccdc3c45b Use library imports globally 2022-11-27 13:01:20 -08:00
Eren Dogan e3fe8c3229 Remove line ending whitespace 2022-07-22 19:52:38 +03:00
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 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 7e7670581c Add some vertical/horizontal pins for sky130 only 2022-03-16 07:58:29 -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 8b3c10ae79 Improvements to power routing. 
Improved the route horizontal and vertical pin functions to
create a single pin at the end.
Swapped A and B on wordline driver input for cleaner routing
in most technologies.
Fixed vertical supply routing in port_address.
 2022-03-04 15:44:07 -08:00
mrg 51ba88d896 Port address with vertical power stripes 2022-03-02 16:29:43 -08:00
mrg 5451a8d07a Don't make internal bus pins because magic will extract ports 2022-02-23 14:06:01 -08:00
Jesse Cirimelli-Low a54eb90371 place decoder rail contacts at least m2 min spacing away 2022-02-15 14:37:07 -08:00
mrg 0c3ee643ab Remove add_mod and add module whenever calling add_inst. 2021-11-22 11:33:27 -08:00
mrg 1e486cd344 Use local spacing rule 2021-06-16 18:41:39 -07:00
Jesse Cirimelli-Low bee9b07516 fix decoder routing 2021-06-11 18:19:07 -07:00
Jesse Cirimelli-Low 10f561648f remove hierarchical decoder vertial m1 above pins 2021-06-09 18:24:21 -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 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 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
jcirimel 888646cdf9 merge in wlbuf and begin work on 32kb memory 2020-10-06 05:03:59 -07:00
mrg 4a58f09c1c Use 4x16 decoder with dual port bitcell in tests. 2020-10-05 10:52:56 -07:00
mrg c7d32089f3 Create RBL wordline buffer with correct polarity. 2020-09-17 14:45:49 -07:00
Hunter Nichols 73b2277daa Removed dead code related to older characterization scheme 2020-08-27 17:30:58 -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 58846a4a25 Limit wordline driver size. Place row addr dff near predecoders. 2020-07-20 17:57:38 -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 cfa234a4d0 Extra space between decoders for well spacing 2020-06-23 15:39:42 -07:00
mrg abb5ff7bae Separate route conditions for s8 2020-06-15 10:30:27 -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 2fcecb7227 Variable zjog. 512 port address test. s8 port address working. 2020-06-04 16:01:32 -07:00
mrg 3927c62e32 Undo extra space due to nwell spacing 2020-06-03 16:39:33 -07:00
mrg 3b1fe26d25 Spacing between decoder and driver for s8 2020-06-03 14:33:30 -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 32576fb62c Convert wordline driver to pand2 rather than pnand2+pdriver 2020-04-22 13:27:50 -07:00
mrg 331a4f4606 Fix wire width bug in short jogs. PEP8 cleanup. 2020-04-15 09:48:42 -07:00
mrg 43dcf675a1 Move pnand outputs to M1. Debug hierarchical decoder multirow. 2020-04-14 10:52:25 -07:00
mrg 2e67d44cd7 First pass of multiple bitcells per decoder row 2020-04-10 13:29:41 -07:00
mrg 7888e54fc4 Remove dynamic bitcell multiple detection. 
Check for decoder bitcell multiple in tech file or assume 1.
PEP8 fixes.
 2020-04-09 11:38:18 -07:00