Introduction
============
.. image:: https://readthedocs.org/projects/adafruit-circuitpython-pioasm/badge/?version=latest
:target: https://docs.circuitpython.org/projects/pioasm/en/latest/
:alt: Documentation Status
.. image:: https://raw.githubusercontent.com/adafruit/Adafruit_CircuitPython_Bundle/main/badges/adafruit_discord.svg
:target: https://adafru.it/discord
:alt: Discord
.. image:: https://github.com/adafruit/Adafruit_CircuitPython_PIOASM/workflows/Build%20CI/badge.svg
:target: https://github.com/adafruit/Adafruit_CircuitPython_PIOASM/actions
:alt: Build Status
.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
:target: https://github.com/astral-sh/ruff
:alt: Code Style: Ruff
Simple assembler to convert pioasm to bytes
Dependencies
=============
This driver depends on:
* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
Please ensure all dependencies are available on the CircuitPython filesystem.
This is easily achieved by downloading
`the Adafruit library and driver bundle <https://circuitpython.org/libraries>`_.
Installing from PyPI
=====================
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
PyPI <https://pypi.org/project/adafruit-circuitpython-pioasm/>`_. To install for current user:
.. code-block:: shell
pip3 install adafruit-circuitpython-pioasm
To install system-wide (this may be required in some cases):
.. code-block:: shell
sudo pip3 install adafruit-circuitpython-pioasm
To install in a virtual environment in your current project:
.. code-block:: shell
mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-pioasm
Usage Example
=============
.. code-block:: python
import time
import rp2pio
import board
import adafruit_pioasm
squarewave = """
.program squarewave
set pins 1 [1] ; Drive pin high and then delay for one cycle
set pins 0 ; Drive pin low
"""
assembled = adafruit_pioasm.assemble(squarewave)
sm = rp2pio.StateMachine(
assembled,
frequency=4000,
init=adafruit_pioasm.assemble("set pindirs 1"),
first_set_pin=board.LED,
)
print("real frequency", sm.frequency)
time.sleep(120)
Documentation
=============
API documentation for this library can be found on `Read the Docs <https://docs.circuitpython.org/projects/pioasm/en/latest/>`_.
For information on building library documentation, please check out `this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>`_.
Contributing
============
Contributions are welcome! Please read our `Code of Conduct
<https://github.com/adafruit/Adafruit_CircuitPython_PIOASM/blob/master/CODE_OF_CONDUCT.md>`_
before contributing to help this project stay welcoming.
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