Commit Graph

16 Commits

Author SHA1 Message Date
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