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-rw-r--r--klippy/extras/display/hd44780.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/klippy/extras/display/hd44780.py b/klippy/extras/display/hd44780.py
index 5601b567..7d7b5c6b 100644
--- a/klippy/extras/display/hd44780.py
+++ b/klippy/extras/display/hd44780.py
@@ -21,6 +21,8 @@ class HD44780:
ppins = self.printer.lookup_object('pins')
pins = [ppins.lookup_pin(config.get(name + '_pin'))
for name in ['rs', 'e', 'd4', 'd5', 'd6', 'd7']]
+ self.hd44780_protocol_init = config.getboolean('hd44780_protocol_init',
+ True)
self.line_length = config.getchoice('line_length', LINE_LENGTH_OPTIONS,
LINE_LENGTH_DEFAULT)
mcu = None
@@ -89,7 +91,10 @@ class HD44780:
curtime = self.printer.get_reactor().monotonic()
print_time = self.mcu.estimated_print_time(curtime)
# Program 4bit / 2-line mode and then issue 0x02 "Home" command
- init = [[0x33], [0x33], [0x32], [0x28, 0x28, 0x02]]
+ if self.hd44780_protocol_init:
+ init = [[0x33], [0x33], [0x32], [0x28, 0x28, 0x02]]
+ else:
+ init = [[0x02]]
# Reset (set positive direction ; enable display and hide cursor)
init.append([0x06, 0x0c])
for i, cmds in enumerate(init):