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foss-eda-tools / third_party / opencircuitdesign.com / open_pdks / refs/heads/fom_fill
commit12f58a270f50bff1f8365abeac70153d9eb0ed26[log] [tgz]
authorTim Edwards <tim@opencircuitdesign.com>Wed Feb 17 12:24:11 2021 -0500
committerTim Edwards <tim@opencircuitdesign.com>Wed Feb 17 12:24:11 2021 -0500
tree2ede3e27493e62320847868e1a80d4ce05cb6f1b
parentb209d1e02a8700178ed9ec5728ea061f4d803d74 [diff]
Added sky130_ef_sc_hd__decap_12 cell to (hopefully) better resolve the
problem of conflicting density results for LI and FOM in digital
layouts with a lot of empty areas filled with decap.  This cell has
about 50% LI instead of 90% LI but does not change the DIFF layer.
3 files changed
tree: 2ede3e27493e62320847868e1a80d4ce05cb6f1b
  1. .travisCI/
  2. common/
  3. scripts/
  4. sky130/
  5. .gitignore
  6. .travis.yml
  7. configure
  8. LICENSE
  9. Makefile.in
  10. README
  11. README.md
  12. VERSION
README.md

Open-PDKs (open_pdks)

Summary:

Automatic setup of PDKs for open-source tools from foundry sources.

Builds out and populates a new set of directories and subdirectories in the efabless format, with the efabless name for the PDK at the top, followed by categories “libs.ref” (IP) and “libs.tech” (EDA tool setup), each with subcategories corresponding to layout, abstract views, netlists, etc. for the IP; and magic, netgen, qflow, etc., for the EDA tool setup.

The populated PDK directories can contain either copies of files from the foundry sources, links to the foundry sources, or links back to another PDK.

Generates magic layout views for all vendor IP for which either a GDS view or a LEF view exists. Annotates the views as needed to handle ports, bounding boxes, etc.

This distribution contains sources for building out the SkyWater SKY130 130nm process. Sources for the foundry process data must be obtained separately. Read the README file in subdirectory sky130/ for instructions on obtaining and building the SkyWater sky130A PDK.

License:

Open_PDKs is open-source software distributed under the Apache-2.0 license. See file LICENSE for the complete license text.

Instructions:

git clone https://github.com/RTimothyEdwards/open_pdks.git
cd open_pdks
./configure [options]
make
make install

where the configure [options] are specific to each foundry PDK supported by open_pdks and can be queried using

./configure --help

At a minimum you will want to pass a configure option to declare the location of the PDK vendor source distribution (which can be obtained separately),

./configure --with-[PDK_name]-source=[path]

The open_pdks version of the PDK can be built locally within open_pdks without the need to declare an install target or run “make install”. However, it is recommended to declare a target location and install there, using

./configure --with-[PDK_name]-source=[path] --with-[PDK_name]-local-path=[path]

followed by “make” and “make install”.

Also see the website at http://opencircuitdesign.com/open_pdks/. The “Install” page has full instructions for configuring and installing open_pdks.