[util] New i2csvg utility to make pictures of I2C transactions

Add a new util to convert text representations of the data
written to the master I2C fifo into pictures matching those in
the SMBus specification.

i2csvg can work from either a readable text format or from a
hex dump of values written to the fifo. See the README.md for
details and examples.

Used to show how all the SMBus 3.0 chapter 6.7 commands can
be encoded using the interface. Added markdown that can be
merged into the I2C documentation eventually.

Signed-off-by: Mark Hayter <mark.hayter@gmail.com>
25 files changed
tree: 2839ba38ad0e19eb5478f7a13c293384e9757480
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. site/
  6. sw/
  7. test/
  8. util/
  9. .clang-format
  10. .gitignore
  11. .style.yapf
  12. _index.md
  13. apt-requirements.txt
  14. azure-pipelines.yml
  15. CLA
  16. COMMITTERS
  17. CONTRIBUTING.md
  18. LICENSE
  19. meson.build
  20. meson_init.sh
  21. meson_options.txt
  22. python-requirements.txt
  23. README.md
  24. toolchain.txt
README.md

OpenTitan

OpenTitan logo

About the project

OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the the OpenTitan site and OpenTitan docs for more information about the project.

About this repository

This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.

Documentation

The project contains comprehensive documentation of all IPs and tools. You can either access it online or build it locally by following the steps below.

  1. Ensure that you have the required Python modules installed (to be executed in the repository root):
$ sudo apt install curl python3 python3-pip
$ pip3 install --user -r python-requirements.txt
  1. Execute the build script:
$ ./util/build_docs.py --preview

This compiles the documentation into ./build/docs and starts a local server, which allows you to access the documentation at http://127.0.0.1:1313.

How to contribute

Have a look at CONTRIBUTING for guidelines on how to contribute code to this repository.

Licensing

Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).