20 lines
522 B
Python
20 lines
522 B
Python
# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""NeoPixel write for Pico u2if."""
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from .rp2040_u2if import rp2040_u2if
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def neopixel_write(gpio, buf):
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"""NeoPixel Writing Function"""
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# pad output buffer from 3 bpp to 4 bpp
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buffer = []
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for i in range(0, len(buf), 3):
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buffer.append(0)
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buffer.append(buf[i + 2])
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buffer.append(buf[i + 1])
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buffer.append(buf[i])
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rp2040_u2if.neopixel_write(gpio, buffer)
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