adafruit-mirror/Adafruit_CircuitPython_DotStar
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Revert "try to import bitbangio if busio SPI is not available"

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siddacious 2019-10-20 13:03:03 -07:00 committed by GitHub
parent be5b20480c
commit e708de0a64
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 8 deletions
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adafruit_dotstar.py
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@ -84,24 +84,18 @@ class DotStar:
def __init__(self, clock, data, n, *, brightness=1.0, auto_write=True, def __init__(self, clock, data, n, *, brightness=1.0, auto_write=True,
pixel_order=BGR, baudrate=4000000): pixel_order=BGR, baudrate=4000000):
self._spi = None self._spi = None
try:
try: try:
self._spi = busio.SPI(clock, MOSI=data) self._spi = busio.SPI(clock, MOSI=data)
except (NotImplementedError, ValueError):
import bitbangio
self._spi = bitbangio.SPI(clock, MOSI=data)
while not self._spi.try_lock(): while not self._spi.try_lock():
pass pass
self._spi.configure(baudrate=baudrate) self._spi.configure(baudrate=baudrate)
except (NotImplementedError, ValueError, ImportError): except (NotImplementedError, ValueError):
self.dpin = digitalio.DigitalInOut(data) self.dpin = digitalio.DigitalInOut(data)
self.cpin = digitalio.DigitalInOut(clock) self.cpin = digitalio.DigitalInOut(clock)
self.dpin.direction = digitalio.Direction.OUTPUT self.dpin.direction = digitalio.Direction.OUTPUT
self.cpin.direction = digitalio.Direction.OUTPUT self.cpin.direction = digitalio.Direction.OUTPUT
self.cpin.value = False self.cpin.value = False
self._n = n self._n = n
# Supply one extra clock cycle for each two pixels in the strip. # Supply one extra clock cycle for each two pixels in the strip.
self.end_header_size = n // 16 self.end_header_size = n // 16