h3n3/klipper
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3 Commits

Author SHA1 Message Date
Kevin O'Connor
43dfb3c9ad lcd_hd44780: Minor change to timing delays 
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-11-26 09:49:43 -05:00
Kevin O'Connor
fb485e862d lcd_hd44780: Add proper timing delays around gpio updates 
A fast micro-controller may update the gpio pins faster than the
hd44780 chip can handle.  Add in the appropriate delays.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-11-26 09:37:30 -05:00
Kevin O'Connor
afc9bcf27b lcd_hd44780: Add micro-controller code for the HD44780 LCD chip 
Add support for passing messages to an HD44780 chip via a 4-bit
bit-banging interface.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2018-03-06 11:30:34 -05:00