luke
/
OpenRAM
mirror of https://github.com/VLSIDA/OpenRAM.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
2,655 Commits 4 Branches 63 Tags 78 MiB
Commit Graph

641 Commits

Author SHA1 Message Date
mrg f1b7b91b1a Use non-channel route for s8 port_data 2020-06-02 11:43:57 -07:00
mrg 45b0601e4b Fix via directions in s8 col mux 2020-06-02 11:43:31 -07:00
mrg a1c7474f80 Revert to channel route of bitlines 2020-06-02 10:08:53 -07:00
mrg b3b03d4d39 Hard cells can accept height parameter too. 2020-06-01 16:46:00 -07:00
mrg 496a24389c Remove prints 2020-05-29 16:57:47 -07:00
mrg 82dc937768 Add missing vias by using via stack function 2020-05-29 16:53:47 -07:00
Joey Kunzler b00163e4e1 lvs fix for regression tests 2020-05-29 13:50:34 -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
Joey Kunzler 218a553ac5 fix for replica column mirroring over y 2020-05-28 20:31:21 -07:00
Joey Kunzler 7505fa5aef update for end caps 2020-05-27 20:03:11 -07:00
Joey Kunzler 9a6b38b67e merge conflict 2020-05-26 16:03:36 -07:00
Aditi Sinha c7d86b21ae Spare cols with wmask enabled 2020-05-16 10:09:03 +00:00
Aditi Sinha c14190c5aa Changes in control logic for spare columns 2020-05-14 10:41:54 +00:00
Aditi Sinha 8bd1052fc2 Spare columns in full sram layout 2020-05-14 10:30:29 +00:00
mrg 4b526f0d5f Check min size inverter. 2020-05-13 16:54:26 -07:00
Aditi Sinha a5c211bd90 Merge branch 'dev' into bisr 2020-05-13 22:39:29 +00:00
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 dd73afc983 Changes to allow decoder height to be a 2x multiple of bitcell height. 
Convert to use li layer in pgates.
Fix multifinger devices with li layers.
Simplify wordline driver input routing.
Fix power pin direction option update.
PEP8 cleanup
Changes to simplify metal preferred directions and pitches.
Split of control logic tests.
 2020-05-10 06:56:22 -07:00
Aditi Sinha 5c50cf234b Fixed lvs errors for spare columns 2020-05-09 07:56:19 +00:00
Aditi Sinha e30938fb66 Spare columns working at bank level 2020-05-03 15:23:30 +00:00
Aditi Sinha 2498ff07ea Merge branch 'dev' into bisr 2020-05-02 07:48:35 +00:00
Joey Kunzler 1b6634bb97 port data routing fix 2020-04-29 15:48:15 -07:00
Joey Kunzler 0bae652be9 fix merge conflicts 2020-04-23 11:51:46 -07:00
Joey Kunzler fed1c0bbe1 s8 col mux array 2020-04-22 16:22:34 -07:00
mrg 32576fb62c Convert wordline driver to pand2 rather than pnand2+pdriver 2020-04-22 13:27:50 -07:00
mrg f1c1adc9bd Simplify supply contacts in delay chain. 2020-04-21 16:12:54 -07:00
mrg 0f6998a1c5 PEP8 cleanup 2020-04-21 15:36:38 -07:00
mrg cd66ddb37c Add supply rails to dff array. PEP8 cleanup. 2020-04-21 15:21:29 -07:00
mrg f6135f3471 PEP8 formatting 2020-04-20 16:38:30 -07:00
mrg 7995451cbb PEP8 formatting 2020-04-20 14:45:18 -07:00
mrg 7f65176908 Configured bitline directions into prot_data 2020-04-20 14:23:40 -07:00
mrg 843e9414df Parameterize vdd and gnd pin in write driver array. 2020-04-16 11:28:35 -07:00
mrg 770533e7b1 Parameterize vdd and gnd pin in sense amp array. 2020-04-16 11:27:26 -07:00
mrg 9d2902de9e Conditional well spacing 2020-04-15 15:55:49 -07:00
mrg e95c97d7a5 PEP8 cleanup 2020-04-15 14:29:43 -07:00
mrg 331a4f4606 Fix wire width bug in short jogs. PEP8 cleanup. 2020-04-15 09:48:42 -07:00
mrg 0941ebc3da Fix well spacing issue 2020-04-14 14:08:07 -07:00
mrg 32d190b8b1 Jog connection on M1 for bank select. 2020-04-14 12:15:56 -07:00
mrg 43dcf675a1 Move pnand outputs to M1. Debug hierarchical decoder multirow. 2020-04-14 10:52:25 -07:00
Aditi Sinha 2661a42726 changes to support spare columns 2020-04-14 03:09:10 +00:00
mrg 2e67d44cd7 First pass of multiple bitcells per decoder row 2020-04-10 13:29:41 -07:00
mrg 7888e54fc4 Remove dynamic bitcell multiple detection. 
Check for decoder bitcell multiple in tech file or assume 1.
PEP8 fixes.
 2020-04-09 11:38:18 -07:00
mrg 8a55c223df Use single height for netlist_only mode 2020-04-09 09:48:54 -07:00
mrg 58fbc5351a Change rows to outputs in hierarchical decoder 2020-04-08 17:05:16 -07:00
mrg 0c27942bb2 Dynamically try and DRC decoder for height 2020-04-08 16:45:28 -07:00
Jesse Cirimelli-Low b59c789dec remove whitespace 2020-04-05 03:58:26 -07:00
Jesse Cirimelli-Low 8b33cb519f Merge branch 'dev' into custom_mod 2020-04-03 17:05:56 -07:00
mrg 2850b9efb5 Don't force check in lib characterization. PEP8 formatting. 2020-04-02 12:52:42 -07:00
mrg 5349323acd PEP8 cleanup. DRC/LVS returns errors. 2020-04-02 09:47:39 -07:00
mrg a9d3548be1 Refactor drc/lvs error output 2020-04-01 15:54:06 -07:00
Jesse Cirimelli-Low cdf0315a90 Merge branch 'dev' into custom_mod 2020-04-01 15:35:33 -07:00
mrg 7956b63d9f Add licon option to precharge 2020-04-01 11:26:45 -07:00
mrg d916322b74 PEP8 updates 2020-03-31 10:15:46 -07:00
Joey Kunzler b0d2946c80 update to sense amp and write driver modules 2020-03-30 20:00:32 -07:00
Jesse Cirimelli-Low 341bde7a48 Merge branch 'dev' into custom_mod 2020-03-26 02:40:37 -07:00
Aditi Sinha b75eeb7688 Merge branch 'dev' into bisr 2020-03-22 21:58:04 +00:00
mrg c5a1be703c Rotate via and PEP8 formatting 2020-03-06 13:39:46 -08:00
mrg 23501c7b35 Convert pnand+pinv to pand in decoders. 2020-03-06 13:26:40 -08:00
mrg 1a2efd77ad Move rbl route away from bitcell array 2020-03-06 09:48:20 -08:00
mrg ee18f61cbf Route RBL to edge of bank. 2020-03-06 09:03:52 -08:00
mrg ad98137cd4 Merge branch 'dev' into tech_migration 2020-03-05 14:18:06 -08:00
mrg 9c1f0657dd PEP8 Formatting 2020-03-05 11:58:36 -08:00
mrg 7adeef6c9e PEP8 Formatting 2020-03-05 10:21:18 -08:00
mrg 287a31f598 Precharge updates. 
Enable different layers for bitlines.
Jog bitlines to fit precharge transistors for close proximity bitlines.
PEP8 cleanup.
 2020-03-04 17:39:11 -08:00
Joey Kunzler d7529ce526 Vdd/gnd via stacks now use perferred directions, added cell property to override 2020-03-04 17:05:19 -08:00
mrg 7ba9e09e12 Incomplete precharge layer decoupling 2020-03-04 22:23:05 +00:00
Jesse Cirimelli-Low f62016ad9f revert dff_buf for no body contact 2020-03-03 12:40:08 +00:00
mrg bb2305d56a PEP8 format fixes 2020-02-28 18:24:39 +00:00
Bastian Koppelmann 0e641bf905 Remove write_driver_array.py.orig 
this was the remainder of applying a diff using "patch". To avoid this
mistake, add the filetypes created by "patch" to the .gitignore.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-21 13:29:43 +01:00
Aditi Sinha 694ea5c20e Characterization for extra rows 2020-02-20 17:31:58 +00:00
Aditi Sinha 34939ebd70 Merge branch 'dev' into bisr 2020-02-20 17:09:09 +00:00
Matt Guthaus da4c69ab98 Merge branch 'pin-pull3' into dev 2020-02-20 09:07:58 -08:00
Hunter Nichols c1cb6bf512 Changed layout input names of s_en AND gate to match the schematic 2020-02-19 23:32:11 -08:00
Hunter Nichols 843fce41d7 Fixed issues with sen control logic for read ports. 2020-02-19 03:06:11 -08:00
Bastian Koppelmann 76256a2f1b sense_amp: Allow custom pin names 
we don't want to propagate the sense amp's bl/br names out of the
sense_amp_array. Thus the sense_amp_array gets them named as
"bl"/"br" again.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-17 15:20:12 +01:00
Bastian Koppelmann 680dc6d2c7 sense_amp/array: Remove hardcoded pin names 
all pin names should be wrapped into a function/property. This ensures
that there is exactly one place to change the name.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-17 15:20:06 +01:00
Bastian Koppelmann 9a12b68680 write_driver: Allow custom pin names 
we don't want to propagate the write driver bl/br names out of the
write_driver_array. Thus the write_driver_array gets them named as
"bl"/"br" again.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-17 14:25:00 +01:00
Bastian Koppelmann c06cb2bfc2 write_driver/array: Remove hardcoded pin names 
all pin names should be wrapped into a function/property. This ensures
that there is exactly one place to change the name.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-17 14:23:26 +01:00
Bastian Koppelmann 656fdd1008 port_data: Refactor channel_route/connect_bitlines() 
both functions share a lot of code and are passing around a lot of data
under similar names (inst1, inst1_start_bit, inst1_bl_name, ...). Thus
we group all these elements in a named tuple to ease passing around
these elements.

All callers of channel_route/connect_bitlines() either pass in the bl/br
names or rely on "br_{}"/"bl_{}" as defaults. These hard coded values
should be determined by the instances. Thus we get the bitline names
based on the instances passed in. The callers only provide a template
string, to take care of the case that bitlines are called "bl_out_{}".

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-17 14:20:03 +01:00
Bastian Koppelmann 5e1f64c8f9 modules/port_data: Add get_bl/br_name method 
if we rely on the names of the submodules (sense_amp_array,
write_driver_array, etc.) for port_data's pins, we get into trouble on
multiport SRAMs. To avoid this we use explicit names for br/bl depending
on the port number in port_data. Now each submodule does no longer need to
figure out the right name depending on the port number.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-17 14:18:32 +01:00
Bastian Koppelmann f6302caeac replica_bitcell_array: Connect bitcells based on bitcell bl/br/wl names 
this allows us to override the bl/br/wl names of each bitcell.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-12 15:37:47 +01:00
Bastian Koppelmann f9babcf666 port_data: Each submodule now specifies their bl/br names 
before the names of bl/br from the bitcell were assumed. If we want to
allow renaming of bl/br from bitcells, we have to seperate the other
modules from that. Note, that we don't touch every occurence of bl/br,
but only the once necessary that pin renaming of the bitcell works.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-12 15:00:50 +01:00
Bastian Koppelmann 64bf93e4e5 bank: Connect instances by their individual bl/br names 
each module should be able to state how their bl/br lines are named. Here we
always connect port_data with the bitcell_array, so port_data needs function
that return the names of bl/br.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
 2020-02-12 15:00:50 +01:00
Jesse Cirimelli-Low a23f72d5a3 Merge branch 'dev' of https://github.com/VLSIDA/PrivateRAM into dev 2020-02-12 06:54:03 +00:00
Jesse Cirimelli-Low aedbc5f968 merge custom cell and module properties 2020-02-12 04:09:40 +00:00
mrg 5928a93772 Merge branch 'dev' into tech_migration 2020-02-10 22:42:50 +00:00
mrg 0ef06ec1e1 Fix dff_buf width in netlist_only mode 2020-02-10 20:06:34 +00:00
mrg 6bf33a980f Add conservative well spacing between library FF and our pgates. 2020-02-10 19:28:30 +00:00
jcirimel 27eced1fbe netlist_only done 2020-02-09 23:51:01 -08:00
jcirimel 7038fad930 s8 gdsless netlist only working up to pdriver 2020-02-09 23:10:33 -08:00
jcirimel b212b3e85a s8 gdsless netlist only working up to dff array 2020-02-09 21:37:09 -08:00
mrg 2ff058f5d5 PEP8 Cleanup and reverse pitch offset of col addr routing 2020-02-06 22:59:30 +00:00
mrg f0ecf385e8 Nwell fixes in pgates. 
Fix minor PEP8 format fixes.
Fix nwell to be 55% of cell height.
Move contact in hierarchical decoder for DRC error.
 2020-02-06 16:20:09 +00:00
Jesse Cirimelli-Low 3a06141030 add simple sram sizing for netlist only 2020-02-06 12:10:49 +00:00
jcirimel 7cb3091140 Merge branch 'dev' of https://github.com/VLSIDA/PrivateRAM into custom_mod 2020-02-04 23:40:54 -08:00
jcirimel ed11145ca4 add custom module file, make dff clk pin dynamic 2020-02-04 23:35:06 -08:00
Jesse Cirimelli-Low 6cf20a0353 add technology based module customization 2020-01-30 19:44:24 +00:00
mrg 400cf0333a Pgates are 8 M1 high by default. Port data is bitcell height. 2020-01-30 03:34:04 +00:00
mrg 0880c393fd Fix base bitcell syntax error. Remove some unused imports. 2020-01-30 01:58:30 +00:00
mrg 79391b84da Cleanup and rename vias. 2020-01-30 01:45:33 +00:00