41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import board
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import audiobusio
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from microcontroller import Pin
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def is_hardware_i2s(bit_clock, word_select, data):
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try:
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p = audiobusio.I2SOut(bit_clock, word_select, data)
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p.deinit()
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return True
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except ValueError:
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return False
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def get_unique_pins():
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exclude = ['NEOPIXEL', 'APA102_MOSI', 'APA102_SCK']
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pins = [pin for pin in [
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getattr(board, p) for p in dir(board) if p not in exclude]
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if isinstance(pin, Pin)]
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unique = []
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for p in pins:
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if p not in unique:
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unique.append(p)
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return unique
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for bit_clock_pin in get_unique_pins():
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for word_select_pin in get_unique_pins():
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for data_pin in get_unique_pins():
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if bit_clock_pin is word_select_pin or bit_clock_pin is data_pin or word_select_pin\
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is data_pin:
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continue
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if is_hardware_i2s(bit_clock_pin, word_select_pin, data_pin):
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print("Bit clock pin:", bit_clock_pin, "\t Word select pin:", word_select_pin,
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"\t Data pin:", data_pin)
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else:
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pass
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