adafruit-mirror/Adafruit_CircuitPython_SSD1680
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Adjust colstart to support top/bottom row correction

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Added column_corection argument to ssd1680 to set colstart so can be adjusted in simpletest to fix issue #10  and can still work with previous sampletest file if needed as only tested on ESP32-S2.
This commit is contained in:
David Edwards 2023-02-15 20:20:48 +00:00
parent 68ba28bce2
commit e181b0ac6e
2 changed files with 10 additions and 6 deletions
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8
adafruit_ssd1680.py
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@ -18,6 +18,7 @@ Implementation Notes
* `Adafruit 2.13" Tri-Color eInk Display Breakout <https://www.adafruit.com/product/4947>`_
* `Adafruit 2.13" Tri-Color eInk Display FeatherWing <https://www.adafruit.com/product/4814>`_
* `Adafruit 2.13" Mono eInk Display FeatherWing <https://www.adafruit.com/product/4195>`_
**Software and Dependencies:**
@ -51,6 +52,7 @@ class SSD1680(displayio.EPaperDisplay):
r"""SSD1680 driver
:param bus: The data bus the display is on
:param column_correction: Adjust colstart, defaults to 1 (``int``)
:param \**kwargs:
See below
@ -63,7 +65,7 @@ class SSD1680(displayio.EPaperDisplay):
Display rotation
"""
def __init__(self, bus: displayio.Fourwire, **kwargs) -> None:
def __init__(self, bus: displayio.Fourwire, column_correction=1, **kwargs) -> None:
stop_sequence = bytearray(_STOP_SEQUENCE)
try:
bus.reset()
@ -95,6 +97,6 @@ class SSD1680(displayio.EPaperDisplay):
set_current_column_command=0x4E,
set_current_row_command=0x4F,
refresh_display_command=0x20,
colstart=1,
colstart=column_correction,
always_toggle_chip_select=True,
)
)

8
examples/ssd1680_simpletest.py
View file

@ -9,10 +9,9 @@ Supported products:
* https://www.adafruit.com/product/4947
* Adafruit 2.13" Tri-Color eInk Display FeatherWing
* https://www.adafruit.com/product/4814
* Adafruit 2.13" Mono eInk Display FeatherWing
* https://www.adafruit.com/product/4195
To use Adafruit 2.13" Monochrome FeatherWing - 250x122 Monochrome with SSD1680:
* https://www.adafruit.com/product/4195
Set change height in display from 122 to 127
"""
@ -35,8 +34,10 @@ display_bus = displayio.FourWire(
)
time.sleep(1)
# For issues with display not updating top/bottom rows correctly set column_correction to 8
display = adafruit_ssd1680.SSD1680(
display_bus,
column_correction=1,
width=250,
height=122,
busy_pin=epd_busy,
@ -44,6 +45,7 @@ display = adafruit_ssd1680.SSD1680(
rotation=270,
)
g = displayio.Group()
with open("/display-ruler.bmp", "rb") as f: