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caravel
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1,431 Commits 140 Branches 61 Tags 15 GiB
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326 Commits

Author SHA1 Message Date
manarabdelaty 56f672bbd8 [DATA] Add HK views 2021-11-15 13:23:54 +02:00
manarabdelaty 85a1ffc5aa [DATA] Add views for the mgmt_protect 2021-11-15 13:21:52 +02:00
Tim Edwards 67e48e53c5 Corrected minor DRC errors around the padframe cell and in the new 
caravan logo layout.  Current design is DRC clean with the new
open_pdks maglef views of the I/O cells.
 2021-11-12 16:12:12 -05:00
Tim Edwards 46dd9493f6 Removed some vestiges of top-level routing that were left over 
from the previous version of the caravel and caravan layouts.
 2021-11-12 13:45:58 -05:00
Tim Edwards d5ef31e391 Added an empty management core wrapper to the caravel top level. 2021-11-12 12:17:52 -05:00
Tim Edwards 27fdba364b Added user 1.8V power supply rails to the chip_io and chip_io_alt 
layouts.  Because the 1.8V domains are no longer within the pad
ring buses, they need to be connected together in the cell.  These
internal lines were previously in the power routing cells.
 2021-11-10 17:13:43 -05:00
Tim Edwards 38dbd8d5d9 Added logo graphic for Caravan. 2021-11-09 22:47:31 -05:00
Tim Edwards 8da7d5124b Added a logo for Caravel. 2021-11-09 17:18:20 -05:00
manarabdelaty 89bb33fbc0 Merge branch 'main' of https://github.com/efabless/caravel_openframe into main 2021-11-08 13:35:16 +02:00
manarabdelaty bee7b4ed78 Add initial config for the digital_pll 2021-11-08 13:34:59 +02:00
Tim Edwards 27e0c94997 Added caravan top level and seeded with the GPIO control blocks, 
default blocks, and updated copyright.
 2021-11-06 22:34:49 -04:00
Tim Edwards cd906cbf8a Updated the copyright block for the new designs. Added caravel 
layout and placed the GPIO control blocks and default blocks.
 2021-11-06 22:13:19 -04:00
Tim Edwards 6a93ea582d Added a script which parses the file "user_defines.v" in 
verilog/rtl/, and creates all the layout files needed to represent
all unique combinations of defaults used in the file.  Not done:
Modifying the top level layout to use the correct defaults (because
the top level layout does not yet exist).
 2021-11-06 21:19:42 -04:00
Tim Edwards f53590d4b5 Split the layout of the GPIO defaults block into three versions, for the 
three parameterized values used in the RTL verilog.  Modified the
"user_defines.v" file to create verilog definitions that match the C-style
definitions from "defs.h", for convenience/simplicity.
 2021-11-06 13:28:26 -04:00
Tim Edwards 33140b67a5 Edited the gpio_defaults_block layout like the user_id_programming 
cell to have landing sites for vias on both the HI and LO pins of
each conb_1 cell, in preparation for via programming.
 2021-11-06 12:59:49 -04:00
manarabdelaty 59076d499a Update gpio_defaults_block to align the pins with the gpio_control_block 2021-11-05 23:27:32 +02:00
manarabdelaty 49c506f052 Update gpio_control_block after constrainting the clock period to be half the mgmt_core frequency 2021-11-05 18:36:43 +02:00
manarabdelaty e68664101c Update gpio_control_block 2021-11-05 16:54:55 +02:00
manarabdelaty 53b09f43d1 Add gpio_defaults_block views 2021-11-05 12:33:36 +02:00
manarabdelaty 78ce7265c1 Update gpio_control block 2021-11-04 17:58:58 +02:00
manarabdelaty cb9990f97e harden gpio_control_block 2021-11-04 16:19:12 +02:00
Tim Edwards ba932643e6 Changed the chip_io and chip_io_alt layouts to implement the 
continuous ring of vccd and vssd.  The clamp connections for the
vccd1/vssd1 and vccd2/vssd2 pads still need to be done, although
the pads themselves have been changed to the base cell, matching
the new verilog RTL.
 2021-11-03 15:57:46 -04:00
Tim Edwards 9fb3925649 Updated the OSHW (open source hardware) icon graphic layout, which was 
badly digitized, and not taking advantage of the allowance of 45 degree
angles on metal5.
 2021-11-01 17:25:34 -04:00
Tim Edwards dd66d1e5ca Renamed the poorly and awkwardly named "sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped" 
cell to the simpler (and easier to remember) "xres_buf".
 2021-10-31 21:43:09 -04:00
Tim Edwards 3a57940371 Revised the management protect block to include protections against 
an unconnected wishbone bus (unconnected inputs).  Added the missing
signals for the user IRQ enables to management protect (which have
to come from the management SoC).
 2021-10-27 19:36:43 -04:00
Tim Edwards a7148378a0 Added as many of the magic database layout files as are expected to remain 
unchanged between the caravel and caravel_openframe repositories.
 2021-10-26 10:27:03 -04:00