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OpenRAM
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199 Commits

Author SHA1 Message Date
Michael Timothy Grimes af0756382f Merging changes and updating multiport syntax across several tests 2018-09-03 19:36:20 -07:00
Michael Timothy Grimes 1e5924d1b7 Adding multiported bank_sel pins 2018-09-03 17:35:00 -07:00
Michael Timothy Grimes d3441c7ba4 Altering wordline driver to size for any bitcell. Editting multi-port test cases for sense amp array, write driver array, and wordline driver to least number of ports as a better test of spacing betwwen amps/drivers 2018-09-03 17:31:12 -07:00
Michael Timothy Grimes f3cca7eea0 Altering sense amp array and write driver array so spacing between amps/drivers accomodates multiport. Also altering sense amp array and write driver array tests to include multiport cases. 2018-08-31 23:28:06 -07:00
Matt Guthaus c3bd54696f Merge branch 'dev' into multiport 2018-08-31 12:56:25 -07:00
Matt Guthaus 563ff77d44 Add sram_config class. Rename port variables for better description. 2018-08-31 12:03:28 -07:00
Matt Guthaus 93a6247f26 Unrotate vias in delay chain 2018-08-29 17:21:53 -07:00
Matt Guthaus 27bb1d2ee7 Rewrite blockage routines in router. Clean up GdsMill code. 2018-08-29 15:34:45 -07:00
Matt Guthaus 5386b7a0f4 Initial refactor of signal and supply router classes. 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 19d46f5954 Finalized separation of netlist/layout creation. 2018-08-27 14:18:32 -07:00
Matt Guthaus 0daad338e4 All modules have split netlist/layout. 2018-08-27 11:13:34 -07:00
Matt Guthaus 87f539f3a8 Separate netlist/layout for flop and precharge array. 2018-08-27 10:54:21 -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
Michael Timothy Grimes 8e3dc332f3 changed control signal names in bank select to accommodate multi-port changes in bank 2018-08-19 00:00:42 -07:00
Michael Timothy Grimes 19ca0d6c2a Changing control logic names to match naming scheme for multi-port. din[0] to din0[0], s_en to s_en0, addr[0] to addr0[0], etc. Sram level should pass unit tests for single port but will not currently pass for multi-port 2018-08-18 16:51:21 -07:00
Michael Timothy Grimes 0f8da1510e Reverting pin name changes of precharge cell and array back to 'bl' and 'br'. Also clarifying bl and br init parameters to reflect that they refer to the bitcell lines. 2018-08-18 15:27:07 -07:00
Michael Timothy Grimes e4a94e8597 Merging changes to bank. Bank has been altered to accommodate multiport. Single port still passes unit test, though some control signal names have been changed to have a following 0 (e.g. s_en to s_en0). Multiport does not pass drc yet, but can accurately generate a spice netlist. 2018-08-15 04:00:48 -07:00
Michael Timothy Grimes e592d95146 Altered bank to accommodate multiport. Single port still works, though some of the control signal names have been changes to have a following 0 (e.g. s_en to s_en0). Multiport does not pass drc yet, but can generate an accurate spice netlist. 2018-08-15 03:36:40 -07:00
Michael Timothy Grimes 040340b49f editted naming convention on precharge to accommodate multiport 2018-08-15 02:14:45 -07:00
Michael Timothy Grimes 8d97862f6e altered precharge array and precharge unit tests to accommodate multiport 2018-08-15 00:55:23 -07:00
Matt Guthaus 3420b1002c Connect data and column DFF clocks in 1 bank. 2018-08-14 10:09:41 -07:00
Matt Guthaus 5ff49d322d bank_sel_bar only used for clk now 2018-08-13 15:14:52 -07:00
Matt Guthaus f7f318d72e Remove tri_en signals from bank control logic. 2018-08-13 14:47:03 -07:00
Matt Guthaus 49bee6a96e Remove OEB signal since we split DIN/DOUT ports 2018-08-13 14:09:49 -07:00
Matt Guthaus 34736b7b3f Remove carriage returns form python files 2018-08-07 09:44:01 -07:00
Michael Timothy Grimes c2a9e91dba Merge branch 'dev' of https://github.com/VLSIDA/PrivateRAM into multiport 2018-08-05 19:53:28 -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 01cbc71a2a Limit sizes for dff_buf too. Add comments about restriction. 2018-07-27 08:17:50 -07:00
Matt Guthaus b541efe959 Fix wide gnd rail spacing to inverter NMOS by adding size limit to pinv. 2018-07-27 07:23:18 -07:00
Matt Guthaus e827c1b8c7 Make pinvbuf have unique names for GDS compliance. 
Add back gating of w_en since write should happen in second half
or else we will have write and precharge simultaneously active.
 2018-07-26 11:40:40 -07:00
Matt Guthaus 00a87d57ab Modified pinvbuf to have a stage effort of 4 for driving the 
clock bar to wordline enable.
Fixed comments in stimulus file to have right cycle numbers.
Removed clock gating on we signal since clock gating is already
done on the WL signals. It is redundant.
 2018-07-26 11:28:48 -07:00
Matt Guthaus b7525a14c2 Change DIN to DOUT in characterizer. Spacing dff flops down by m2 not m1 pitch. 2018-07-25 15:50:49 -07:00
Matt Guthaus a4bfbe3545 Move dff_array pins to center of rail 2018-07-25 15:08:04 -07:00
Matt Guthaus 44f0e4a1de Fix new offset coordinate syntax error 2018-07-25 13:47:36 -07:00
Matt Guthaus 16a084fde1 Add vdd/gnd at right end of rails. Rename some signals for clarity. 2018-07-24 14:15:11 -07:00
Matt Guthaus aa2ea26db3 Convert control module to use hierarchy bus API 2018-07-24 10:35:07 -07:00
Matt Guthaus b50f57ea3a Remove control logic supply rails and replace with M3 supply pins 2018-07-24 10:12:54 -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 311ab97bfc Fix s_en stages to be even per Kevin's bug report. Assert minimum fanout to ensure vdd/gnd connections. 2018-07-19 10:51:20 -07:00
Matt Guthaus 128dfd5830 Add internal vdd/gnd connections for delay chain 2018-07-19 10:37:47 -07:00
Matt Guthaus 51958814a0 Fixing power via problems in freepdk45 2018-07-19 10:23:08 -07:00
Matt Guthaus 3f57853969 Use lower case names except for leaf cells and top level 2018-07-18 15:10:57 -07:00
Matt Guthaus f43d4cc98f Fix routing clk connections of dff arrays 2018-07-18 11:38:58 -07:00
Matt Guthaus b8a3bc9b1a Space hier decoder input connections along rails to avoid conflicts 2018-07-18 10:21:58 -07:00
Matt Guthaus ef60b02a81 Add vdd/gnd pins to dff_array 2018-07-17 15:01:31 -07:00
Matt Guthaus 6133d54684 Fix spacing between adjacent decoders 2018-07-17 15:01:16 -07:00
Matt Guthaus ffc866ef78 Single bank working except for channel routing error in 4-way case. 2018-07-17 14:40:04 -07:00
Matt Guthaus 7a69fc1bca Add col addr routing and data routing 2018-07-17 14:24:44 -07:00
Matt Guthaus 0175c88a16 Convert predecodes to use create_bus api 2018-07-17 14:23:06 -07:00
Matt Guthaus ac22b1145f Convert bank to use create_bus routines. 
Modify control logic to have correct offset in SRAM.
 2018-07-16 14:13:41 -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
Matt Guthaus 3bbb604504 Add new power supplies to delay chain 2018-07-16 10:19:52 -07:00
Matt Guthaus f3ae29fe0b Getting single bank to work reliably. Removed tri_gate from bank 
for now. Will add it in multibank arrays only. Not needed for
separate DIN and DOUT ports.
 2018-07-13 14:45:46 -07:00
Matt Guthaus 25cf57ede5 Push create bus functions down into layout class. 2018-07-10 10:06:59 -07:00
Matt Guthaus 98f1914e9f Fix width of decoder with new input bus. Bank tests work again. 2018-07-10 09:31:41 -07:00
Matt Guthaus 94db2052dd Consolidate metal pitch rules to new design class 2018-07-09 15:42:46 -07:00
Matt Guthaus 2e5d60ae87 Fix input height error for input rail pins 2018-07-09 14:45:27 -07:00
Matt Guthaus e60d157310 Add input pin rails to hierarchical decoder for easier connections at SRAM level. 2018-07-09 13:16:38 -07:00
Matt Guthaus af84742c19 Simplify m2 pitch calculation 2018-07-09 09:57:57 -07:00
Matt Guthaus cc815f4c33 Fix sense amp spacing after modifying index to be increment by one. 2018-06-29 15:30:17 -07:00
Matt Guthaus 99fe3b87fe Remove temp file. Fixing indexing of sense amp outputs. 2018-06-29 15:22:58 -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 8f131ddb2f commiting changes from most recent pull from dev 2018-05-22 17:30:51 -07:00
Michael Timothy Grimes 766042fe69 changed case of handmade bitcell pins from upper case to lower case. Made changes in other modules that are affected by this case. Only for SCMOS for this commit 2018-05-22 14:16:51 -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 f34c4eb7dc Convert entire OpenRAM to use python3. Works with Python 3.6. 
Major changes:
Remove mpmath library and use numpy instead.
Convert bytes to new bytearrays.
Fix class name check for duplicate gds instances.
Add explicit integer conversion from floats.
Fix importlib reload from importlib library
Fix new key/index syntax issues.
Fix filter and map conversion to lists.
Fix deprecation warnings.
Fix Circuits vs Netlist in Magic LVS results.
Fix file closing warnings.
 2018-05-14 16:15:45 -07:00
Matt Guthaus 0e35937da5 Commit local changes. Forgot what the status is. 2018-05-11 09:15:29 -07:00
Michael Timothy Grimes 3971835f24 changed pbitcell_array tests in regards to addition of read/write ports in pbitcell 2018-05-10 09:40:43 -07:00
Matt Guthaus 875eb94a34 Move bank select below row decoder, col mux, or col decoder. 2018-04-23 12:17:16 -07:00
Matt Guthaus e04f53dc27 Rotate via 2018-04-23 09:18:34 -07:00
Matt Guthaus 269d553857 Move sense amp to tri gate routing to M3... not ideal. 2018-04-23 09:14:18 -07:00
Matt Guthaus cd502895c4 Undoing last change. 2018-04-23 08:48:50 -07:00
Matt Guthaus 8ce3809cad Divide index 2018-04-20 17:09:15 -07:00
Matt Guthaus ed76a784d2 Remove power rails and ring. 2018-04-20 15:51:19 -07:00
Matt Guthaus 19a957a57c Fix unattached label on sense amp out by changing layer. 2018-04-20 15:48:38 -07:00
Matt Guthaus d734c05b71 Fix missing vdd pins and fix routing between sense amp, bitcell array and column mux. 2018-04-20 15:47:21 -07:00
Matt Guthaus 929122b6dc Change default to scmos. Refactor add column mux. 2018-04-20 12:52:41 -07:00
Matt Guthaus c75eafe085 Fix some errors 2018-04-18 09:37:33 -07:00
Matt Guthaus 63a8f7c653 Remove m2 from write driver 2018-04-16 16:15:35 -07:00
Matt Guthaus bb1ec63c4f Removed msf data flop from bank 2018-04-16 16:03:46 -07:00
Matt Guthaus 1ba87c88f5 Remove supply rails in decoder 2018-04-16 15:59:52 -07:00
Matt Guthaus 13adfc3724 Add bank ground routing 2018-04-16 10:15:36 -07:00
Matt Guthaus 3fe4578feb Change stages of delay to odd 2018-04-16 10:15:15 -07:00
Matt Guthaus 70c92c27ef Supply to M3 for bank select logic 2018-04-11 16:55:09 -07:00
Matt Guthaus 010a187545 Remove dead logic 2018-04-11 16:54:55 -07:00
Matt Guthaus e038561b4a Move supply to M3 in wordline driver 2018-04-11 16:23:45 -07:00
Matt Guthaus 6640d3491d Tri gate and array supply to M2 and M3 2018-04-11 15:11:47 -07:00
Matt Guthaus 1e36e8e20c Fix ms_flop array for M3 supplies 2018-04-11 14:25:04 -07:00
Matt Guthaus 873be38e15 Add M3 pins on dff_buf array 2018-04-11 12:09:15 -07:00
Matt Guthaus 4971dde316 Rename pin variable 2018-04-11 12:08:57 -07:00
Matt Guthaus fa59b3d33d Copy predecoder supply pins 2018-04-11 11:56:41 -07:00