Commit Graph

8 Commits

Author SHA1 Message Date
R. Timothy Edwards 71600440bc
Caravan top lvs (#67)
* - update caravan configuration
* change correct gpio_default blocks instance names
* implement powerrouting work around
* place spare logic blocks
* keep the history of runs and sym link last/final one

* - update caravan mag, def and gl views
- add fake power routing cell in the rtl as a placeholder for openlane
  to prevent routing on that cell
- fix some syntax errors in chip_io_alt
- match simple_por lef pins with mag by regenerating it

* Apply automatic changes to Manifest and README.rst

* add caravan power routing lef

* - update mag and def view of caravan
- add_macro_placement for fake cell

* Added back the power routing to Caravan, fixed DRC errors, ran LVS,
corrected placement of isolated substrate regions, and replaced the
signal routing for the analog lines.  Be aware that merging with
main may cause issues with the mgmt_protect.mag file and its
subcells mprj2_logic_high.mag and mprj_logic_high.mag.  It may be
worth cherry-picking the files to merge and exclude those layouts.

Co-authored-by: kareem <kareem.farid@efabless.com>
Co-authored-by: kareefardi <kareefardi@users.noreply.github.com>
Co-authored-by: Jeff DiCorpo <42048757+jeffdi@users.noreply.github.com>
2022-04-14 15:05:16 -07:00
Marwan Abbas e9f023f9fa
Introduction of PDK variable (#39)
* added PDK_VARIENT variable

* changed variable name to PDK

* resolve issue

Co-authored-by: Marwan Abbas <marwan@ciic.c.catx-ext-efabless.internal>
2022-04-08 09:05:58 -07:00
Tim Edwards 5f563c3f4f Corrected a statement in the LVS scripts in the mag/ directory that
is Makefile syntax, not bash syntax, and will cause the script to
produce an incorrect LVS result without generating a syntax error.
2021-12-17 22:27:32 -05:00
Tim Edwards 8cac89ec74 Changed the user project wrapper and user analog project wrapper
to be abstract views, and modified the LVS scripts accordingly
(they no longer need a special version of the netgen setup
script).  LVS was verified on both caravel and caravan using this
setup.
2021-12-07 22:21:49 -05:00
Tim Edwards 79828c00b3 Revised the LVS run scripts to use $PDK_ROOT instead of a hard-
coded path.
2021-12-07 10:32:22 -05:00
Tim Edwards c3fc004072 Corrected an error in verilog/gl/chip_io_alt.v, which was missing
connections to the core side VCCD1 and VSSD1 on the clamped3 pads.
Also added scripts for running LVS on chip_io to the mag/ directory,
and revised the scripts so that they will only re-run extraction if
there is no netlist file in the mag/ directory.
2021-12-07 10:06:35 -05:00
Tim Edwards 2691903104 Reworked part of the layouts of both caravel and caravan to move
the clocking subcircuit from inside the pad area near the "clock"
pin to under the DLL.  This prevents the DLL from having its
outputs travel all the way across the chip to reach the clocking
cell and then have the multiplexed clock travel all the way back,
especially as the DLL outputs are high-speed signals (up to 150
MHz).
2021-12-02 20:45:39 -05:00
Tim Edwards 5262f35610 Modifications done as part of LVS on the caravel top level. 2021-11-21 22:07:16 -05:00