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hd44780: Increase timeout to 40us 

There have been several reports that increasing the delay from 37us to
40us eliminates screen corruption on some clone hd44780 displays.
Increase the timeout value so that the standard code works on these
displays.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2020-01-24 00:01:48 -05:00
parent fe76fbe820
commit ef4710c6e0
1 changed files with 1 additions and 1 deletions
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klippy/extras/display/hd44780.py
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@ -8,7 +8,7 @@ import logging
BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000
HD44780_DELAY = .000037
HD44780_DELAY = .000040
class HD44780:
def __init__(self, config):