* Fixed caravan top level power routing and updated views for mag, gds and lef
* caravan(rtl): updates
~ typos fix
- remove unused pin in chip_io_alt
+ add caravan_power_routing verilog
* Apply automatic changes to Manifest and README.rst
* ~ update caravan openlane configs to add extra cell references
~ correct placment and cell names of some macro in caravan interactive script
* reharden: caravan
+ add non functional blocks
+ add an initial iteration of caravan
* Apply automatic changes to Manifest and README.rst
* Revert "Fixed caravan top level power routing and updated views for mag, gds and lef"
This reverts commit 70628f748a.
* fixed caravan top level power routing
* reharden: caravan
based on new power routing
~ guard rtl chip_io power pins in the power macro guard
* Apply automatic changes to Manifest and README.rst
* fixed caravan top level power routing
* rehadren: caravan
+ add caravan signal routing to openlane run
~ change rtl to guard power and analog against routing by
openlane by ifndef TOP_ROUTING
~ add pr bounadry for caravan signal routing to fix origin issues
* Apply automatic changes to Manifest and README.rst
* fix power connection in buffering block and regenerate gl
* Apply automatic changes to Manifest and README.rst
* updated views for caravan
* Added extract unique to lvs-gds-cell target. (#313)
* This fixes errors in the top level RTL of caravan that failed to
hook up the buffers through the SoC correctly.
* Apply automatic changes to Manifest and README.rst
* reharden: caravan
~ rtl updated
* fixed caravan mag top level
* updated views for caravan + signoff
* fixed top level cell name
* fix syntax error related to signal initialization place in caravan (#319)
* fix syntax error related to signal initialization place in caravan- fixed in caravel in another commit
* Apply automatic changes to Manifest and README.rst
Co-authored-by: M0stafaRady <M0stafaRady@users.noreply.github.com>
* Apply automatic changes to Manifest and README.rst
Co-authored-by: Marwan Abbas <marwaneltoukhy@aucegypt.edu>
Co-authored-by: kareem <kareem.farid@efabless.com>
Co-authored-by: kareefardi <kareefardi@users.noreply.github.com>
Co-authored-by: Mitch Bailey <d-m-bailey@users.noreply.github.com>
Co-authored-by: Tim Edwards <tim@opencircuitdesign.com>
Co-authored-by: RTimothyEdwards <RTimothyEdwards@users.noreply.github.com>
Co-authored-by: Marwan Abbas <67271180+marwaneltoukhy@users.noreply.github.com>
Co-authored-by: M0stafaRady <107422726+M0stafaRady@users.noreply.github.com>
Co-authored-by: M0stafaRady <M0stafaRady@users.noreply.github.com>
Co-authored-by: jeffdi <jeffdi@users.noreply.github.com>
* Fix the simple_por to (logically) isolate the 1.8V and 3.3V grounds.
This commit does the following:
(1) Corrects the xschem simple_por schematic to separate the 1.8V and 3.3V grounds.
(2) Corrects the xschem simple_por symbol to separate the 1.8V and 3.3V grounds.
(3) Corrects the xschem testbench to connect to both grounds of simple_por.
(4) Corrects the simple_por layout to remove the 1.8V logic from the
3.3V ground and connect it instead to the 1.8V ground.
(5) Extends the top-level power routing of caravel and caravan to
make a better connection to the simple_por 1.8V ground.
(6) Adds an LVS script to properly check the simple_por layout against the
xschem-generated schematic netlist.
NOTE: None of these modifications change the function of any circuit. The
1.8V and 3.3V ground nets are only logically separated in the netlists but
share the substrate. This fix cleanly defines the 1.8V and 3.3V grounds
within the simple_por, where they were previously mingled. It also ensures
that the full LVS for caravel and caravan can now include the simple_por at
the transistor level and still pass.
* Updated the GDS of simple_por (previously did not remove GDS_FILE
from the .mag file and so it just overwrote the original GDS file
with itself).
* Corrected a route to simple_por in the top level of both caravel
and caravan that was shorting to the extra metals put on top of
the substrate contact across the top (bottom, in the top level)
of the simple_por layout.
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).
verilog for both caravel and caravan. Hand-edited the RTL and GL netlists to
correct this; still need to correct the layouts. The error causes the user1
side clock, load, and reset buffers to drive the user2 side as well as the user1
side, making a huge mess of the routing. Will route this by hand.
marwaneltoukhy
Jeff DiCorpo
R. Timothy Edwards