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Merge pull request #93 from adafruit/ssd1680_fix

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Update ssd1680.py
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Limor "Ladyada" Fried 2025-08-13 11:52:00 -04:00 committed by GitHub
commit dc6bda8a81
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1 changed files with 10 additions and 7 deletions
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17
adafruit_epd/ssd1680.py
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@ -153,7 +153,7 @@ class Adafruit_SSD1680(Adafruit_EPD):
# driver output control
self.command(
_SSD1680_DRIVER_CONTROL,
bytearray([self._height - 1, (self._height - 1) >> 8, 0x00]),
bytearray([(self._height - 1) & 0xFF, (self._height - 1) >> 8, 0x00]),
)
# data entry mode
self.command(_SSD1680_DATA_MODE, bytearray([0x03]))
@ -163,20 +163,23 @@ class Adafruit_SSD1680(Adafruit_EPD):
self.command(_SSD1680_GATE_VOLTAGE, bytearray([0x17]))
self.command(_SSD1680_SOURCE_VOLTAGE, bytearray([0x41, 0x00, 0x32]))
height = self._width
if height % 8 != 0:
height += 8 - (height % 8)
# Set ram X start/end postion
self.command(_SSD1680_SET_RAMXPOS, bytearray([0x01, 0x10]))
self.command(_SSD1680_SET_RAMXPOS, bytearray([0x00, (height // 8) - 1]))
# Set ram Y start/end postion
self.command(
_SSD1680_SET_RAMYPOS,
bytearray([0, 0, self._height - 1, (self._height - 1) >> 8]),
bytearray([0x00, 0x00, (self._height - 1) & 0xFF, (self._height - 1) >> 8]),
)
# Set border waveform
self.command(_SSD1680_WRITE_BORDER, bytearray([0x05]))
# Set ram X count
self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x01]))
self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x00]))
# Set ram Y count
self.command(_SSD1680_SET_RAMYCOUNT, bytearray([self._height - 1, 0]))
self.command(_SSD1680_SET_RAMYCOUNT, bytearray([0x00, 0x00]))
self.busy_wait()
def power_down(self) -> None:
@ -206,9 +209,9 @@ class Adafruit_SSD1680(Adafruit_EPD):
"""Set the RAM address location, not used on this chipset but required by
the superclass"""
# Set RAM X address counter
self.command(_SSD1680_SET_RAMXCOUNT, bytearray([x + 1]))
self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0]))
# Set RAM Y address counter
self.command(_SSD1680_SET_RAMYCOUNT, bytearray([y, y >> 8]))
self.command(_SSD1680_SET_RAMYCOUNT, bytearray([0, 0]))
class Adafruit_SSD1680Z(Adafruit_SSD1680):