diff options
Diffstat (limited to 'klippy/extras/display/uc1701.py')
| -rw-r--r-- | klippy/extras/display/uc1701.py | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/klippy/extras/display/uc1701.py b/klippy/extras/display/uc1701.py index ba564395..6b42cdef 100644 --- a/klippy/extras/display/uc1701.py +++ b/klippy/extras/display/uc1701.py @@ -12,6 +12,7 @@ BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000 TextGlyphs = { 'right_arrow': '\x1a', 'degrees': '\xf8' } class UC1701: + DATA_PIN_NAME = "a0_pin" CURRENT_BUF, OLD_BUF = 0, 1 EMPTY_CHAR = (0, 32, 255) def __init__(self, config): @@ -20,7 +21,7 @@ class UC1701: mcu = self.spi.get_mcu() # Create a0 pin ppins = config.get_printer().lookup_object('pins') - a0_pin_params = ppins.lookup_pin(config.get('a0_pin')) + a0_pin_params = ppins.lookup_pin(config.get(self.DATA_PIN_NAME)) if a0_pin_params['chip'] != mcu: raise ppins.error("uc1701 all pins must be on same mcu") self.a0_oid = mcu.create_oid() @@ -158,3 +159,29 @@ class UC1701: page[:] = zeros def get_dimensions(self): return (16, 4) + +# The SSD1306 (in 4-wire SPI mode) differs from UC1701 only in display init +class SSD1306(UC1701): + DATA_PIN_NAME = "dc_pin" + def init(self): + init_cmds = [ + 0xAE, # Display off + 0xD5, 0x80, # Set oscillator frequency + 0xA8, 0x3f, # Set multiplex ratio + 0xD3, 0x00, # Set display offset + 0x40, # Set display start line + 0x8D, 0x14, # Charge pump setting + 0x20, 0x02, # Set Memory addressing mode + 0xA1, # Set Segment re-map + 0xC8, # Set COM output scan direction + 0xDA, 0x12, # Set COM pins hardware configuration + 0x81, 0xEF, # Set contrast control + 0xD9, 0xA1, # Set pre-charge period + 0xDB, 0x00, # Set VCOMH deselect level + 0x2E, # Deactivate scroll + 0xA4, # Output ram to display + 0xA6, # Normal display + 0xAF, # Display on + ] + self.send(init_cmds) + self.flush() |