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OpenRAM
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121 Commits

Author SHA1 Message Date
mrg 7f65176908 Configured bitline directions into prot_data 2020-04-20 14:23:40 -07:00
mrg 79391b84da Cleanup and rename vias. 2020-01-30 01:45:33 +00:00
Bastian Koppelmann dd1afe0313 Bitcell arrays: Allow mirroring on the y axis 
this allows for bitcells that need to be mirrored on the y axis, like
thin cells. However, the portdata elements also need to be mirrored on
the y axis. Otherwise the router will fail horribly when connecting
bitlines.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-01-28 15:51:21 +01:00
Bastian Koppelmann 3fb2b9c1c3 Bitcell arrays: Create abstract base class 
a lot of functions of dummy- and bitcell-array are either copy-pasted or
have just slight differences. Merge all of those into an abstract base
class such that we don't have too much duplicate code.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-01-28 10:59:58 +01:00
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 585ce63dff Removing unused tech parms. Simplifying redundant parms. 2019-09-04 16:08:18 -07:00
Hunter Nichols 3c44ce2df6 Replaced analytical characterization with graph implementation. Removed most analytical delay functions used by old chacterizer. 2019-08-08 02:33:51 -07:00
Hunter Nichols 2efc0a3983 Merge branch 'dev' into analytical_cleanup 2019-08-06 14:51:30 -07:00
Matt Guthaus ad35f8745e Add direction to pins of all modules 2019-08-06 14:14:09 -07:00
Hunter Nichols dc46d07ca3 Removed unused code for input loads 2019-07-26 14:20:47 -07:00
mrg e550d6ff10 Port name maps between bank and replica array working. 2019-07-15 11:29:29 -07:00
mrg 8b0b2e2817 Merge branch 'dev' into rbl_revamp 2019-07-03 14:05:28 -07:00
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
mrg 4523a7b9f6 Replica bitcell array working 2019-06-19 16:03:21 -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
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
Hunter Nichols 099bc4e258 Added bitcell check to storage nodes. 2019-05-20 18:35:52 -07:00
Hunter Nichols d8617acff2 Merged with dev 2019-05-15 18:48:00 -07:00
Hunter Nichols a80698918b Fixed test issues, removed all bitcells not relevant for timing graph. 2019-05-15 17:17:26 -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 be20408fb2 Rewrite add_contact to use layer directions. 2019-04-15 18:00:36 -07:00
Hunter Nichols 25c034f85d Added more accurate bitline delay capacitance estimations 2019-04-09 01:56:32 -07:00
Hunter Nichols cc5b347f42 Added analyical model test which compares measured delay to model delay. 2019-04-03 16:26:20 -07:00
Hunter Nichols f6eefc1728 Added updated analytical characterization with combined models 2019-04-02 01:09:31 -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 0c3baa5172 Added some comments to the spice files. 2019-01-25 15:00:00 -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
Matt Guthaus 7e054a51e2 Some techs don't need m1 power pins 2018-11-29 18:47:38 -08:00
Matt Guthaus 0af4263edb Remove extra rotated vias in bitcell array to simplify power routing 2018-11-29 18:13:15 -08:00
Hunter Nichols e8f1c19af6 Merge branch 'dev' into multiport_characterization 2018-11-19 15:42:48 -08:00
Matt Guthaus ca750b698a Uniquify bitcell array 2018-11-16 12:52:22 -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 b8061d3a4e Added initial code for determining the logical effort delay of the wordline. 2018-11-08 23:54:18 -08:00
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
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
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 138a70fc23 Add place_inst routine. 
Separate create netlist and layout in some modules.
 2018-08-27 10:42:40 -07:00
Michael Timothy Grimes 8c73a26daa Changing function names in bitcell and pbitcell to better reflect what values they're returning. Editting function calls in bitcell_array and bank accordingly. 2018-08-26 14:37:17 -07:00
Matt Guthaus 34736b7b3f Remove carriage returns form python files 2018-08-07 09:44:01 -07:00
Michael Timothy Grimes ecd4612167 altered bitcell, pbitcell, and bitcell array modules to accomodate additional bitline reference functions 2018-08-05 19:43:59 -07:00
Matt Guthaus beee8229d1 Revert change. Add gnd pin to right on bitline load. 2018-07-19 13:26:12 -07:00
Michael Timothy Grimes e19a422696 simplfying calculations in pbitcell and changing pbitcell_array_test to check different port combinations 2018-05-31 17:39:51 -07:00
Michael Timothy Grimes 5e4d4bf6cd resolved conflicts with bitcell_array after PrivateRAM merge 2018-05-22 14:12:14 -07:00
Michael Timothy Grimes b5df0cc30a Merging branch with PrivateRAM dev 2018-05-18 15:15:31 -07:00
Matt Guthaus 0e35937da5 Commit local changes. Forgot what the status is. 2018-05-11 09:15:29 -07:00
Michael Timothy Grimes 7f46a0dead merging changes in bitcell.py 2018-04-03 09:46:12 -07:00
Matt Guthaus a0bf5345f8 Mostly working for 1 bank. 2018-03-23 08:14:26 -07:00
Matt Guthaus ed8eaed54f Reworking control logic for veritcal poly. Rewrote delay line. Rewrote buffered-DFF array. 2018-03-23 08:12:47 -07:00
Michael Timothy Grimes 0cc077598e Added member functions to bitcell.py and pbitcell.py for use in bitcell_array.py. bitcell_array now used only one function for every type of bitcell. 2018-03-15 12:02:38 -07:00
Michael Timothy Grimes 65735c08e2 fixed bitcell_array to work with different sized pbitcells, changed sizing in pbitcell to minimize space between inverters 2018-03-08 16:39:26 -08:00
Michael Timothy Grimes 0ea5d0b6a7 making changes to bitcell_array to account for the addition nets from the multiported bitcells 2018-03-06 17:03:21 -08:00
Hunter Nichols d0dcd9f34b Fixed comment style on power functions. Also added power parameters to scn3me_subm tech file and tested functionality. 2018-03-01 23:34:15 -08:00
Hunter Nichols d0e6dc9ce7 First version of analytical power models. Still huge room for improvement. Analytical power printed with 1 verbose level. 2018-02-26 16:32:28 -08:00
Hunter Nichols 62ad30e741 Added initial version of analytical power esitmation. Loops through instances but power estimate is not accurate. 2018-02-22 19:35:54 -08:00
Hunter Nichols 179a27b0e3 Added some power functions. 2018-02-20 18:22:23 -08:00
Hunter Nichols 8ea384a761 Fixed merging issues with power branch 2018-02-14 15:21:42 -08:00
Matt Guthaus 7100d6f904 Organize top-level files into subdirs. 2018-02-09 10:25:24 -08:00