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Merge pull request #84 from mikeysklar/1680z-alignment

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off by one adjustments
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Limor "Ladyada" Fried 2024-12-02 20:56:09 -05:00 committed by GitHub
commit 47837b6bb8
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GPG key ID: B5690EEEBB952194
1 changed files with 28 additions and 3 deletions
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31
adafruit_epd/ssd1680.py
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@ -244,15 +244,30 @@ class Adafruit_SSD1680Z(Adafruit_SSD1680):
self.command( self.command(
_SSD1680_DRIVER_CONTROL, _SSD1680_DRIVER_CONTROL,
bytearray([self._height - 1, (self._height - 1) >> 8, 0x00]), bytearray([self._height, (self._height) >> 8, 0x00]),
) )
self.command(_SSD1680_DATA_MODE, bytearray([0x03])) self.command(_SSD1680_DATA_MODE, bytearray([0x03]))
self.command(_SSD1680_SET_RAMXPOS, bytearray([0x00, (self._width // 8) - 1]))
# Set voltages
self.command(_SSD1680_WRITE_VCOM_REG, bytearray([0x36]))
self.command(_SSD1680_GATE_VOLTAGE, bytearray([0x17]))
self.command(_SSD1680_SOURCE_VOLTAGE, bytearray([0x41, 0x00, 0x32]))
self.command(_SSD1680_SET_RAMXPOS, bytearray([0x00, (self._width // 8)]))
self.command( self.command(
_SSD1680_SET_RAMYPOS, _SSD1680_SET_RAMYPOS,
bytearray([0x00, 0x00, self._height - 1, (self._height - 1) >> 8]), bytearray([0x00, 0x00, self._height, (self._height) >> 8]),
) )
# Set border waveform
self.command(_SSD1680_WRITE_BORDER, bytearray([0x05]))
# Set ram X count
self.command(_SSD1680_SET_RAMXCOUNT, bytearray([0x01]))
# Set ram Y count
self.command(_SSD1680_SET_RAMYCOUNT, bytearray([self._height, 0]))
self.busy_wait()
def update(self): def update(self):
"""Update the display specifically for SSD1680Z.""" """Update the display specifically for SSD1680Z."""
self.command(_SSD1680_DISP_CTRL2, bytearray([0xF7])) # Full update for SSD1680Z self.command(_SSD1680_DISP_CTRL2, bytearray([0xF7])) # Full update for SSD1680Z
@ -260,3 +275,13 @@ class Adafruit_SSD1680Z(Adafruit_SSD1680):
self.busy_wait() self.busy_wait()
if not self.busy_pin: if not self.busy_pin:
time.sleep(3) # Wait for update to complete time.sleep(3) # Wait for update to complete
def set_ram_address(
self, x: int, y: int
) -> None: # pylint: disable=unused-argument, no-self-use
"""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]))
# Set RAM Y address counter
self.command(_SSD1680_SET_RAMYCOUNT, bytearray([y, y >> 8]))