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foss-eda-tools / third_party / opencircuitdesign.com / open_pdks / 64be4f9e2204aa8dff3fb0aa97f90bec6267eb53
commit64be4f9e2204aa8dff3fb0aa97f90bec6267eb53[log] [tgz]
authorTim Edwards <tim@opencircuitdesign.com>Sat Jul 29 14:35:42 2023 -0400
committerTim Edwards <tim@opencircuitdesign.com>Sat Jul 29 14:35:42 2023 -0400
tree9f2fa155ef49428bd91ba762fb338d4309064d22
parent405227f0d564aa8a291b91365a561ccd468b1dbe [diff]
Added a new script that can remove wildcarded labels from .mag
files after running foundry_install.py.  Applied the script to
the GF SRAM cell, which has labels that virtually merge a number
of bit lines if "extract unique" is not used.
5 files changed
tree: 9f2fa155ef49428bd91ba762fb338d4309064d22
  1. .github/
  2. common/
  3. gf180mcu/
  4. runtime/
  5. scripts/
  6. sky130/
  7. .gitignore
  8. configure
  9. docs.txt
  10. LICENSE
  11. Makefile.in
  12. README.md
  13. 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
[sudo] 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 --enable-[PDK_name]-pdk=[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 --prefix=[path] --enable-[PDK_name]-pdk=[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.