Peripheral Codegen

This project is an example of how to describe peripherals with an intermediary layer (YAML files) which can be used to generate library files for a peripheral.

It can also generate reference documentation for a peripheral, useful for embedding into datasheets.

The tool works well for I2C devices, while SPI support is in alpha.

This is not an official Google product.

Setup

Note: This project requires Python3. You can install using pip

pip install cyanobyte

Run Codegen

cyanobyte-codegen -t templates/doc.md -o ./build peripherals/MCP4725.yaml

Options

• -t - A template file. You can provide multiple template files.
• -o - The output directory where files will be generated.
• -e - The directory that emboss folder is stored.
• -d - Debug flag to print out additional information.
• -c - Clean the output directory before generating files.

One or multiple files can be passed as an argument.

Clean

rm -rf ./build

Run Validator

cyanobyte-validator peripherals/MCP9808.yaml

One or multiple files can be passed as an argument.

Peripheral YAML file

The current spec is described in docs/cyanobyte.md. You can find all examples in the peripherals/ directory.

Test

Lint

python3 -m pylint --rcfile=test/pylintrc cyanobyte/*.py
python3 -m pylint --rcfile=test/pylintrc test/sampleData/*.py

Unit test

python3 -m unittest test.test_codegen

Templates

The templates directory includes a set of canonical templates which can be used with this codegen tool.

The peripherals directory includes a set of peripheral description files that have been created along with the project. It is not an exhaustive list.

Development setup

pip install -r requirements.txt --user

For more advanced development, also install the dev list. pip install -r requirements-dev.txt --user

Contributors

Contributions are welcome! See CONTRIBUTING.md for more information.

When a pull request is submitted, a continuous integration task is run. The CI task must be completed successfully before a patch is merged. You can see the specific rules run in cloudbuild.yaml.

License

See LICENSE