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OpenRAM
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1,843 Commits 4 Branches 63 Tags 78 MiB
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59 Commits

Author SHA1 Message Date
Hunter Nichols ce7e320505 Undid change to add bitcell as input to array mod. 2019-06-25 18:26:13 -07:00
Hunter Nichols 4e08e2da87 Merged and fixed conflicts with dev 2019-06-25 16:55:50 -07:00
Hunter Nichols 33c17ac41c Moved manual delay chain declarations from tech files to options. 2019-06-25 15:45:02 -07:00
Hunter Nichols 2b07db33c8 Added bitcell as input to array, but there are DRC errors now. 2019-06-17 15:31:16 -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 fc12ea24e9 Add boundary to every module and pgate for visual debug. 2019-06-03 15:27:37 -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
Matt Guthaus b58fd03083 Change pbuf/pinv to pdriver in control logic. 2019-01-23 12:03:52 -08:00
Matt Guthaus a418431a42 First draft of sram_factory code 2019-01-16 16:15:38 -08:00
Hunter Nichols ea55bda493 Changed s_en delay calculation based recent control logic changes. 2018-12-05 17:10:11 -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 e8f1c19af6 Merge branch 'dev' into multiport_characterization 2018-11-19 15:42:48 -08:00
Hunter Nichols 3716030a23 Added delay chain sizing for rise/fall delays. Disabled to some sizes being having very large fanouts. 2018-11-16 16:57:22 -08:00
Matt Guthaus ca750b698a Uniquify bitcell array 2018-11-16 12:52:22 -08:00
Hunter Nichols 6e47de3f9b Separated relative delay into rise/fall. 2018-11-14 23:34:53 -08:00
Hunter Nichols e9f6566e59 Fixed merge conflict, moved control logic mod instantiation, removed some commented out code. 2018-11-14 13:53:27 -08:00
Matt Guthaus aa779a7f82 Initial two port bank in SCMOS 2018-11-13 16:05:22 -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 d03c9d5294 Fix write bl name list in replica bitline 2018-11-08 17:02:20 -08:00
Matt Guthaus 7b10e3bfec Convert port index lists to three simple lists. 2018-11-08 12:19:40 -08:00
Hunter Nichols f05865b307 Fixed drc issues with replica bitline test. 2018-11-02 17:16:41 -07:00
Hunter Nichols b00fc040a3 Added replica 1rw+1r cell python modules. Also added drc/lvs checks in replica bitline, but test is failing due to pin error in freepdk45 and metal spacing error in scmos. 2018-11-01 12:29:49 -07:00
Matt Guthaus 7591f25a2e Merge branch 'dev' into supply_routing 2018-10-20 14:29:19 -07:00
Michael Timothy Grimes a06a0975db Removed L shaped routing from gnd contact to wordlines in replica bitline. Corrected slight DRC errors. Optimizations to pbitcell. 2018-10-18 07:05:47 -07:00
Matt Guthaus ce8c2d983d Update all drc usages to call function type 2018-10-12 14:37:51 -07:00
Matt Guthaus e22e658090 Converted all submodules to use _bit notation instead of [bit] 2018-10-11 09:53:08 -07:00
Michael Timothy Grimes a71486e22f Adding mutliport constants to design.py to reduce the need for copied code across multiple modules. 2018-09-28 00:11:39 -07:00
Michael Timothy Grimes 1ca0154027 Editting top level netlist for multiport. Now there are multiple control logic modules, one per port. Since diffent ports are driven by different clocks, also separating dff modules, one per port. 2018-09-26 19:10:24 -07:00
Michael Timothy Grimes f1560375fc Altering control logic for read ports and write ports, by including only read or write specific circuitry. Altering replica bitline layout to support multiport 2018-09-25 20:00:25 -07:00
Michael Timothy Grimes 2641841e4c Making correction to replica bitline netlist for multiport 2018-09-20 15:21:22 -07:00
Michael Timothy Grimes e0b9989d85 Adding replica_pbitcell and test for multi-ported purposes. Altering replica bitline and test to accomodate. 2018-09-13 01:42:06 -07:00
Michael Timothy Grimes 0cdd3b99bf Generalized wl names using bitcell's list_all_wl_names function to accomodate multiport 2018-09-09 22:42:52 -07:00
Michael Timothy Grimes 1429b9ab1a Commiting working version of multi-port that can generate a netlist on the sram level. Changes that will clean up the code are forthcoming. 2018-09-09 14:00:51 -07:00
Matt Guthaus 763f1e8dee Finish renaming replica bitcell and bitline pin names. 2018-09-04 14:03:15 -07:00
Matt Guthaus 27bb1d2ee7 Rewrite blockage routines in router. Clean up GdsMill code. 2018-08-29 15:34:45 -07:00
Matt Guthaus e17c69be3e Clean up new code for add_modules, add_pins and netlist/layouts. 2018-08-28 10:24:09 -07:00
Matt Guthaus 6401cbf2a6 Move place function to instance class rather than hierarchy. 2018-08-27 17:25:39 -07:00
Matt Guthaus 8664f7a0b8 Converted all modules to not run create_layout when netlist_only 
mode is enabled.
 2018-08-27 16:42:48 -07:00
Matt Guthaus 3420b1002c Connect data and column DFF clocks in 1 bank. 2018-08-14 10:09:41 -07:00
Matt Guthaus 45a53ed089 Rotate via in center for freepdk 2018-07-19 14:01:48 -07:00
Matt Guthaus 4c3bd0e42b Move WL gnd contacts outside the cell for simplicity 2018-07-19 13:38:45 -07:00
Matt Guthaus beee8229d1 Revert change. Add gnd pin to right on bitline load. 2018-07-19 13:26:12 -07:00
Matt Guthaus ea53066966 Align RBL inverter with first load inverter in delay chain to aid supply connections 2018-07-19 11:02:13 -07:00
Matt Guthaus afcc3563ae Add new supplies to RBL and control logic 2018-07-16 12:58:15 -07:00
Matt Guthaus 93e830e800 Add new supplies to replica bitline 2018-07-16 10:49:43 -07:00