26 lines
568 B
Python
26 lines
568 B
Python
# SPDX-FileCopyrightText: 2021 Scott Shawcroft, written for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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import rp2pio
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import board
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import adafruit_pioasm
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squarewave = """
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.program squarewave
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set pins 1 [1] ; Drive pin high and then delay for one cycle
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set pins 0 ; Drive pin low
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"""
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assembled = adafruit_pioasm.assemble(squarewave)
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sm = rp2pio.StateMachine(
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assembled,
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frequency=80,
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init=adafruit_pioasm.assemble("set pindirs 1"),
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first_set_pin=board.LED,
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)
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print("real frequency", sm.frequency)
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time.sleep(120)
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