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Improve border selection documentation/comment.

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antirez
2024-03-17 22:12:23 +01:00
parent 93665cd85f
commit 45174c431e
1 changed files with 7 additions and 5 deletions
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uc8151.py
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@@ -284,9 +284,11 @@ class UC8151:
# to invert the display so that black is white and white is black,
# without resorting to software changes.
#
# The first two bits are the "border data selection" and are
# pretty much undocumented, however with 00 or 11 the border
# will not flicker when the display updates, so that's what we use.
# The bits 7:6 are the "border data selection":
# For black/white mode: 00,11 = floating. 01: LUTBW, 10: LUTWB.
# For black/white/red: 00 floating, 01 LUTR, 10 LUTW, 11 LUTB.
# We keep it at 11 since it is floating in all the cases so
# that the border will not flicker.
self.write(CMD_CDI,0b11_01_1100 if self.inverted else 0b11_00_1100)
# PLL clock frequency. Setting it to 100 HZ means that each
@@ -770,8 +772,8 @@ if __name__ == "__main__":
spi = SPI(0, baudrate=12000000, phase=0, polarity=0, sck=Pin(18), mosi=Pin(19), miso=Pin(16))
eink = UC8151(spi,cs=17,dc=20,rst=21,busy=26,speed=2,no_flickering=False)
#eink.load_greyscale_image("dama.grey")
eink.load_greyscale_image("hopper.grey")
eink.load_greyscale_image("dama.grey")
#eink.load_greyscale_image("hopper.grey")
STOP
# eink.set_handmade_lut()