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OpenRAM
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56 Commits

Author SHA1 Message Date
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 3074cf3b86 Small format cleanup 2020-04-01 11:15:29 -07:00
mrg 79391b84da Cleanup and rename vias. 2020-01-30 01:45:33 +00:00
mrg aa8f389f28 Add fudge factor to pbitcell wells 2020-01-24 17:45:24 +00:00
mrg 9beb0f4ece Add separate well design rules. 
Needed to fix various pgates with wells.
Did some cleanup of these gates as well.
 2020-01-23 19:43:41 +00:00
Matt Guthaus 0da8164ea6 Remove some unnecessary via directions. 2019-12-19 13:54:50 -08:00
Matt Guthaus b7d78ec2ec Fix ptx active contact orientation to non-default M1 direction. 2019-12-19 12:54:10 -08:00
Matt Guthaus aceaa9fb21 Standardize contact names. 2019-12-17 15:55:20 -08:00
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 f71cfe0d9d Generalize active and poly stacks 2019-12-13 14:56:14 -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 8d3f1d19cb Fix missing rule 2019-12-11 18:02:32 -08:00
Matt Guthaus 69bb245f28 Updates to gdsMill/tech layers 
Create active and poly contact types.
Define standard cell boundary option.
DataType and PurposeLayer are the same. Text must have type 0.
Remove vector from vlsiLayout. More debug in reader.
 2019-12-04 16:12:53 -08:00
vagrant 67c768d22c Refactor bitcell to bitcell_base. Pep8 format bitcells. 2019-10-06 01:08:23 +00:00
Hunter Nichols fc1cba099c Made all cin function relate to farads and all input_load relate to relative units. 2019-08-08 01:57:04 -07:00
Hunter Nichols 6860d3258e Added graph functions to compute analytical delay based on graph path. 2019-08-07 01:50:48 -07:00
Hunter Nichols c12dd987dc Fixed pbitcell graph edge formation. 2019-07-30 00:49:43 -07:00
mrg e2602dd79b Add comments for pins. Fix noconn in dummy pbitcell. 2019-07-16 17:30:31 -07:00
mrg 2f55911604 Simplify column decoder placement. 2019-07-16 11:55:25 -07:00
mrg e550d6ff10 Port name maps between bank and replica array working. 2019-07-15 11:29:29 -07:00
mrg 043018e8ba Functional tests working with new RBL. 2019-07-12 08:42:36 -07:00
mrg b841fd7ce3 Replica bitcell array with arbitrary RBLs working 2019-07-10 15:56:51 -07:00
Hunter Nichols 4e08e2da87 Merged and fixed conflicts with dev 2019-06-25 16:55:50 -07:00
Matt Guthaus 6e044b776f Merge branch 'pep8_cleanup' into dev 2019-06-14 08:47:10 -07:00
Matt Guthaus a234b0af88 Fix space before comment 2019-06-14 08:43:41 -07:00
mrg 8418aea95a Revert height to width 2019-06-03 15:36:14 -07:00
Hunter Nichols ad229b1504 Altered indexing of objects in SRAM factory to remove duplications of items using OPTS names. Added smarter bitline name checking. 2019-05-28 16:55:09 -07:00
mrg c2cc901300 Add boundary to every module and pgate for visual debug. 2019-05-27 16:32:38 -07:00
mrg e738353b5c Pbitcell updates. 
Fix module offset error.
Add boundary for debugging.
Line wrap code.
 2019-05-27 16:19:29 -07:00
Hunter Nichols d08181455c Added multiport bitcell support for storage node checks 2019-05-20 22:50:03 -07:00
Hunter Nichols d8617acff2 Merged with dev 2019-05-15 18:48:00 -07:00
Hunter Nichols d54074d68e Made timing graph more gate-level. Changed edges to be defined by inputs/ouputs and name based. 2019-05-07 00:52:27 -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
Hunter Nichols e292767166 Added graph creation and functions in base class and lower level modules. 2019-04-24 14:23:22 -07:00
Matt Guthaus 25bc3a66ed Add far left option for contact placement in pgates. 2019-04-17 13:41:35 -07:00
Matt Guthaus be20408fb2 Rewrite add_contact to use layer directions. 2019-04-15 18:00:36 -07:00
Hunter Nichols a500d7ee3d Adjusted bitcell analytical delays for multiport cells. 2019-04-09 02:49:52 -07:00
Hunter Nichols 80a325fe32 Added corner information for analytical power estimation. 2019-03-04 19:27:53 -08:00
Hunter Nichols 0e96648211 Added linear corner factors in analytical delay model. 2019-03-04 00:42:18 -08:00
Matt Guthaus a418431a42 First draft of sram_factory code 2019-01-16 16:15:38 -08:00
Hunter Nichols 722bc907c4 Merged with dev. Fixed conflicts in tests. 2018-12-02 23:09:00 -08:00
Matt Guthaus 90d1fa7c43 Bitcell supply routing fixes. 
Flatten and simplify 1rw 1r bitcell.
Move bitcell vias to M3 if rotation is limited.
Simplify replica bitcell vdd routing.
 2018-11-30 12:32:13 -08:00
Hunter Nichols bad55cfd05 Merged with dev. Fixed merge conflict. 2018-11-09 17:18:19 -08:00
Hunter Nichols 8957c556db Added sense amp enable delay calculation. 2018-11-08 23:54:18 -08:00
Matt Guthaus 31eff6f24e Merge branch 'dev' into multiport_layout 2018-11-08 18:00:28 -08:00
Matt Guthaus ef2ed9a92c Simplify bl and br name lists. 2018-11-08 15:48:49 -08:00
Michael Timothy Grimes 6711630463 Altering the routing slightly in the column mux to give the gnd contacts a wider berth. This prevents drc errors when the bitlines are close to the edge of the cell. 2018-11-02 05:59:47 -07:00
Michael Timothy Grimes dc96d86082 Optimizations to pbitcell spacings 2018-11-01 07:58:20 -07:00
Hunter Nichols 98a00f985b Changed the analytical delay model to accept multiport options. Little substance to the values generated. 2018-10-26 00:08:13 -07:00