def begin_transaction(self):
"""Begin the SPI transaction by locking, configuring, and setting Chip Select
"""
- if not self._spi.try_lock():
- return False
+ while not self._spi.try_lock():
+ pass
self._spi.configure(
baudrate=self._frequency, polarity=self._polarity, phase=self._phase
)
self._chip_select.value = False
- return True
def end_transaction(self):
"""End the SPI transaction by unlocking and setting Chip Select
class Glyph:
"""Storage of glyph info"""
- def __init__(self, *, bitmap, tile_index, width, height, dx, dy, shift_x, shift_y):
+ def __init__(self, bitmap, tile_index, width, height, dx, dy, shift_x, shift_y):
self.bitmap = bitmap
self.width = width
self.height = height