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OpenRAM
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93 Commits

Author SHA1 Message Date
Sam Crow 7581df2255 change pins to OrderedDict 2023-07-17 15:22:35 -07:00
Sam Crow c8c43f75d9 add spice nets and a way to connect them to pins 2023-07-14 16:18:10 -07:00
Sam Crow 146efc5070 implement pin_spice object 2023-07-13 16:45:05 -07:00
Sam Crow 4e649aad6b fix typo bug in spice comments code 2023-07-10 13:21:24 -07:00
Eren Dogan e5fc25da6f Update copyright year 2023-01-28 22:56:27 -08:00
mrg 7ddb1a39dc Line wrap output spice subckt and instance lines at 80 characters. 2022-12-12 13:58:30 -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
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 e460eff014 Add per tool lvs directories 2021-12-17 10:21:34 -08:00
mrg 0c3ee643ab Remove add_mod and add module whenever calling add_inst. 2021-11-22 11:33:27 -08:00
Hunter Nichols 1236a0773a Added SA parameters for CACTI delay. Fixed syntax issues in several modules. Fixed issue with slew not being propogated to the next delay stage. 2021-09-07 15:56:27 -07:00
Hunter Nichols 6b8d143073 Changed cacti RC delay function to better match cacti code in bitcell. Sense amp also has similar changed but is missing transconductance parameter. 2021-09-01 14:27:13 -07:00
Hunter Nichols 680d7b5d93 Added special RC delay functions for the bitline and sense amp to match CACTI. Contains temporary parameters which need to be defined. 2021-08-25 16:12:05 -07:00
Hunter Nichols 12c03ddd9f Fixed issues with load capcitance units. Changed freepdk45 r and c wire values to be more in line with cacti. 2021-08-16 22:58:26 -07:00
Hunter Nichols b3500982ca Fixed issue with wire resistance in total resistance equations for cacti. Fixed issue with sense amp resistance values. 2021-08-04 16:10:27 -07:00
Hunter Nichols b44f840814 Changed delay calculation to include wire resistance and wire capacitance. Added bitline r and c values. 2021-08-01 19:25:54 -07:00
Hunter Nichols 54cbef1aff Replaced cacti tech params with already existing params. Added an existence check in design_rules. 2021-07-27 14:31:22 -07:00
Hunter Nichols 7dd9023ce4 Uncommented horowitz delay function. 2021-07-21 15:02:39 -07:00
Hunter Nichols 10085d85ab Changed CACTI drain cap function to be roughly equivalent but use less parameters. Added drain cap functions to relevant modules. Added drain cap parameters in tech files. 2021-07-21 14:59:02 -07:00
Hunter Nichols 1acc10e9d5 Added name changes to on resistance params. Added input capacitance functions to relevant modules for CACTI input load functions. 2021-07-21 12:24:08 -07:00
Hunter Nichols f6924b7cc2 Removed unusued inputs in drain_c function 2021-07-20 11:33:18 -07:00
Hunter Nichols ebc91814e5 Fixed various issues with imported code from CACTI, added CACTI as an option for analytical sim, added placeholder names in tech files for CACTI 2021-07-12 15:48:47 -07:00
Hunter Nichols 2c9f755a73 Added on resistance functions for pgates, custom cells, and bitcell. 2021-07-12 14:25:37 -07:00
Hunter Nichols e9bea4f0b6 Changed names of some functions in base CACTI delay function. Removed unused analytical delay functions. 2021-07-12 13:02:22 -07:00
Hunter Nichols c1efa2de59 Added delay function for cacti, moved cacti related delay functions to hierarchy_spice, and trimmed the functions to remove irrelevant options for OpenRAM. 2021-07-07 13:22:30 -07:00
Hunter Nichols 16e658726e When determining bitline names, added a technology check for sky130. 2021-06-16 17:04:02 -07:00
mrg d609e4ea04 Reimplement trim options (except on unit tests). 
Allow trim netlist to be used for delay and functional simulation.
Each class implements a "trim_insts" set of instances that can be removed.
By default far left, right, top and bottom cells in the bitcell arrays are kept.

Use lvs option in sp_write

Fix lvs option in sram.
 2021-04-07 16:07:56 -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 fbed738b4a Merge multiple cell_name fix. 2020-11-18 16:27:28 -08:00
mrg baae28194b Add custom cell custom port order code. Update setup/hold to use it. 2020-11-17 11:12:59 -08:00
mrg 86799ae3ff Small bug fixes related to new name mapping. 2020-11-16 13:42:42 -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 c472a94f1e Rework bitcells. 
Name them 1port and 2port consistently.
Allow cell overrides to cell_1rw and cell_2rw or other.
Will use 2rw for 1rw/1r, 2rw, 1w/1r, etc.
 2020-11-13 10:07:40 -08:00
mrg 662d4ea724 Merge remote-tracking branch 'private/drclvs' into dev 2020-11-12 16:01:07 -08:00
mrg 9eeab14639 Add comment before pininfo 2020-11-12 14:33:42 -08:00
mrg 190234df58 Add PININFO to outputs too 2020-11-12 12:12:53 -08:00
mrg d3cb22c8c1 Fix pin vs module names issue #26 2020-11-12 09:33:48 -08:00
mrg da721a677d Remove EOL whitespace globally 2020-11-03 06:29:17 -08:00
mrg fa89b73ef8 PR from mithro + other changable GDS file names 2020-11-02 16:00:16 -08:00
mrg d7e2340e62 Lots of PEP8 cleanup. Refactor path graph to simulation class. 2020-09-29 10:26:31 -07:00
Hunter Nichols 8bcbf005bf Merge branch 'dev' into characterizer_bug_fixes 2020-09-04 02:25:01 -07:00
Hunter Nichols 13b1d4613c Moved spice naming checking code from design to the spice base module 2020-08-31 14:36:13 -07:00
mrg 11a82b7283 Fixed local bitcell array for single and dual port 2020-08-27 14:03:05 -07:00
mrg 83001e1ab5 PEP8 formatting 2020-06-23 15:39:26 -07:00
mrg 54120f8405 Add option for removing subckt/instances of cells for row/col caps 2020-06-22 12:35:37 -07:00
mrg a13d535945 PEP8 cleanup 2020-06-22 11:33:02 -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