Python library for working with the PD Buddy Sink Serial Console Configuration Interface
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Clara Hobbs 066f44f92f Added get_source_cap and PDO support 6 лет назад
pdbuddy Added get_source_cap and PDO support 6 лет назад
test_pdbuddy Added get_source_cap and PDO support 6 лет назад
.gitignore Initial commit 6 лет назад
LICENSE Added a simple PD Buddy Sink configuration library 6 лет назад
README.rst Added get_source_cap and PDO support 6 лет назад
setup.py Bump version number to 0.2.1 6 лет назад

README.rst

pd-buddy-python
===============

Python library for working with the PD Buddy Sink Serial Console
Configuration Interface

Features
--------

- Provides a Pythonic interface to the PD Buddy Sink shell commands
- Configuration is represented as a SinkConfig object
- SinkConfig objects can be manipulated locally and written to the
device with one method call
- Allows control of whether or not the output is enabled
- Provides a Pythonic interface for reading advertised PDOs

Examples
--------

Open the first PD Buddy Sink device and read its configuration
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

::

>>> import pdbuddy
>>> pdbs = pdbuddy.Sink(list(pdbuddy.Sink.get_devices())[0])
>>> pdbs.get_cfg()
SinkConfig(status=<SinkStatus.VALID: 2>, flags=<SinkFlags.NONE: 0>, v=5000, i=3000)
>>> print(pdbs.get_cfg())
status: valid
flags: (none)
v: 5.00 V
i: 3.00 A

Locally manipulate a SinkConfig object
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

::

>>> cfg = pdbs.get_cfg()
>>> cfg = cfg._replace(v=20000, i=2250)
>>> cfg = cfg._replace(flags=cfg.flags | pdbuddy.SinkFlags.GIVEBACK)
>>> cfg
SinkConfig(status=<SinkStatus.VALID: 2>, flags=<SinkFlags.GIVEBACK: 1>, v=20000, i=2250)

Write the SinkConfig object to flash
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

::

>>> pdbs.set_tmpcfg(cfg)
>>> pdbs.write()
>>> pdbs.get_cfg()
SinkConfig(status=<SinkStatus.VALID: 2>, flags=<SinkFlags.GIVEBACK: 1>, v=20000, i=2250)

Requirements
------------

- Python 2.7, >= 3.3
- pySerial >= 3.0
- aenum >= 2.0 (if using Python < 3.6)

Testing
-------

To run the unit tests, run::

$ python setup.py test

This will test the Sink class only if a PD Buddy Sink is plugged in and in
setup mode, so make sure that's the case if you're testing any changes to the
Sink class. Also, make sure the Status LED is blinking quickly when the tests
are run, since that's the only real way to test the ``identify`` command. Be
aware that the Sink's configuration will get clobbered by the tests.