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OpenRAM
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46 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 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
Jesse Cirimelli-Low 8879820af4 replica col lvs fix 2021-12-15 14:19:52 -08:00
Jesse Cirimelli-Low e280efda7b don't copy pwell pin onto nwell 2021-07-01 15:19:59 -07:00
Jesse Cirimelli-Low bcc956ecdc merge dev 2021-06-29 11:42:32 -07:00
Jesse Cirimelli-Low 24e42d7cbe refactor adding bias pins 2021-06-29 11:37:07 -07:00
mrg 930cc48e16 Add vdd/gnd for all bitcells 2021-06-29 09:37:30 -07:00
Jesse Cirimelli-Low c36f471333 add vnb/vpb lvs correspondence points 2021-06-29 02:31:56 -07:00
Matt Guthaus 30fc81a1f0 Update copyright year. 2021-01-22 11:23:28 -08:00
mrg 5ee3f4cc66 Many edits. 
Use internal vdd/gnd names.
Refactor getters in bitcell to base class.
Add BIAS signal type.
 2020-11-22 08:24:47 -08:00
mrg 93e94e26ec Get vdd/gnd from properties if it is defined. 2020-11-16 10:14:37 -08:00
mrg 8021430122 Fix pbitcell erros 2020-11-13 15:55:55 -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 20be7caf98 Make conditional wl and bl for dummy rows/cols. 2020-10-15 13:56:37 -07:00
mrg 6a1f12b62d Refactored to utilize OOP 2020-10-13 11:07:31 -07:00
mrg 68d74737f7 Different bitcell and array supply pins 2020-10-13 07:41:21 -07:00
jcirimel 05667d784f move sky130 specific stuff to tech module lib 2020-10-13 04:48:10 -07:00
mrg c3d6be27be Fix argument name bug for remove wordlines 2020-10-08 16:58:38 -07:00
mrg 01fe02bd90 Fixes to replica bitline array. 
Copy pasta error for right dummy column offset.
Put end_caps in try/except block.
PEP 8 formatting
 2020-10-08 14:53:44 -07:00
jcirimel 1e7ae06b7e fix extra wl in col end, work on bring wl pins out to row end array, TODO: mirror alternating row end 2020-10-08 05:32:03 -07:00
jcirimel d40c3588ed no wl for col end 2020-10-08 03:34:16 -07:00
jcirimel 888646cdf9 merge in wlbuf and begin work on 32kb memory 2020-10-06 05:03:59 -07:00
jcirimel efdc171b14 make split wl specific to each port 2020-09-23 00:08:34 -07:00
jcirimel fb6a665514 removed references to technology name 2020-09-22 18:33:03 -07:00
jcirimel 559dfbc7a6 single port bitcell array done 2020-09-16 05:46:14 -07:00
jcirimel d22164bd48 single port progess 2020-09-14 18:11:38 -07:00
mrg e95ab66916 Update to space according to the bitcell array. 2020-09-14 12:05:45 -07:00
mrg 8909ad7165 Update modules to use variable bit offsets. 
Bitcell arrays can return the bit offsets.
Port data and submodules can use offsets for spacing.
Default spacing for port data if no offsets given.
 2020-09-11 15:36:22 -07:00
mrg 7bb21fb73f Updates to local and global arrays to make bitline and wordlines consistent. 2020-09-09 11:54:46 -07:00
mrg 1269bf6e16 Global bitcell working 2020-09-04 13:06:58 -07:00
mrg 4ec47d8ee1 Refactor global and local to be a bitcell_base_array 2020-09-01 11:59:01 -07:00
mrg 28bd93bf51 Still working on array refactor 2020-08-25 11:50:44 -07:00
mrg 8dee5520e0 Standardize array names independent of bitcell 2020-08-21 13:44:35 -07:00
mrg eef97ff215 Reabstracting bit and word line names. 2020-08-06 11:17:49 -07:00
mrg 2fa561f98f Local bitcell array edits. Skip test by default. 2020-07-29 10:08:13 -07:00
mrg e1967dc548 Draft local and global arrays. Ensure rows before cols in usage. 2020-07-23 14:43:14 -07:00
mrg 5285468380 All bitcells need a vdd/gnd pin 2020-06-28 15:09:47 -07:00
mrg 051c8d8697 Only add bitcells to dummy and replica rows and columns (the perimeter) 2020-06-28 14:47:54 -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 443b8fbe23 Change s8 to sky130 2020-06-12 14:23:26 -07:00
Joey Kunzler 7505fa5aef update for end caps 2020-05-27 20:03:11 -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
Joey Kunzler d7529ce526 Vdd/gnd via stacks now use perferred directions, added cell property to override 2020-03-04 17:05:19 -08:00
Bastian Koppelmann f6302caeac replica_bitcell_array: Connect bitcells based on bitcell bl/br/wl names 
this allows us to override the bl/br/wl names of each bitcell.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-12 15:37:47 +01:00
mrg 79391b84da Cleanup and rename vias. 2020-01-30 01:45:33 +00:00