Commit Graph

5 Commits

Author SHA1 Message Date
Tim Edwards 0fd05dde39 This commit creates a LEF abstract view of the top level, which
establishes all the pin names, positions, classes, and uses.  Adds
a script which uses the LEF abstract view to annotate the top level
layouts for caravel and caravan with the chip pins (not yet run---
waiting for a valid top level layout after top-level routing).
Also:  Updated the copyright block to increase the chip version
number and update the date.
2022-10-11 16:19:06 -04:00
Kareem Farid c84e1393e7
updates to top level caravel (#59)
* REVERT ME: temporarily match simple_por pin in verilog with lef

* - update configs
- add patch file for power routing def

* - update the following caravel toplevel views
    - gl
    - mag
    - def
- add caravel power routing def

* Apply automatic changes to Manifest and README.rst

* update gl mag and def for caravel

* Revert "REVERT ME: temporarily match simple_por pin in verilog with lef"

This reverts commit b70c27c69f.

* update caravel gds

* Apply automatic changes to Manifest and README.rst

* Added text and logo cells back into the caravel top level.  Put an
isolated ground marker layer on the xres_buf layout.  Corrected
the power supply pin names on the gate level verilog netlist of
simple_por in caravel.v.  Updated the copyright block text.
Corrected DRC errors in the top level routing.

Co-authored-by: Tim Edwards <tim@opencircuitdesign.com>
2022-04-08 09:31:33 -07:00
Tim Edwards 6eb8bb54de Several more LVS corrections, including fixing a label in chip_io that
got removed from its net by a chang in the LEF view of an I/O pad, and
a lack of declaration of an array to attach to pwr_ctrl_out in the
verilog, which is valid verilog but netgen can't know the bus size
without the no-connect net being declared.  The remaining issue has to
do with separation of ground domains in the mgmt_protect block.
2021-11-21 22:58:39 -05:00
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 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