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Add a variable to allow shifting the column address an arbitrary amount #4

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Merged
merged 1 commit into from
Mar 20, 2022
Merged

Add a variable to allow shifting the column address an arbitrary amount #4

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7 changes: 5 additions & 2 deletions adafruit_st7565.py
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,9 @@ class ST7565(framebuf.FrameBuffer):
# LCD Page Order
pagemap = (0, 1, 2, 3, 4, 5, 6, 7)

# LCD Start Bytes
start_bytes = 0

CMD_DISPLAY_OFF = const(0xAE)
CMD_DISPLAY_ON = const(0xAF)
CMD_SET_DISP_START_LINE = const(0x40)
Expand Down Expand Up @@ -146,9 +149,9 @@ def show(self):
# Set page
self.write_cmd(self.CMD_SET_PAGE | self.pagemap[page])
# Set lower bits of column
self.write_cmd(self.CMD_SET_COLUMN_LOWER | (0 & 0xF))
self.write_cmd(self.CMD_SET_COLUMN_LOWER | (self.start_bytes & 0xF))
# Set upper bits of column
self.write_cmd(self.CMD_SET_COLUMN_UPPER | ((0 >> 4) & 0xF))
self.write_cmd(self.CMD_SET_COLUMN_UPPER | ((self.start_bytes >> 4) & 0xF))

# Page start row
row_start = page << 7
Expand Down