adafruit-circuitpython-pioasm

Introduction

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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=2000,
    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.