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Try render_mode = lv.DISPLAY_RENDER_MODE.FULL

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It's sort of okay but there's a skew/italic effect.
This commit is contained in:
Thomas Farstrike
2026-03-10 14:50:55 +01:00
parent d921cb3414
commit a3ad6ac8ab
1 changed files with 11 additions and 7 deletions
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internal_filesystem/lib/mpos/board/lilygo_t_display_s3.py
+11 -7
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@@ -29,18 +29,20 @@ except Exception as e:
time.sleep(3)
machine.reset()
_BUFFER_SIZE = const(28800)
#_BUFFER_SIZE = const(28800)
_BUFFER_SIZE = const(170 * 320 * 2) # without the + 1 this triggers render_mode = lv.DISPLAY_RENDER_MODE.FULL which is broken on emulated hardware (actual hardware still to test)
fb1 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
fb2 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
#fb1_aligned = lv.draw_buf_align(fb1, lv.COLOR_FORMAT.RGB565)
#fb2 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
import drivers.display.st7789 as st7789
import mpos.ui
mpos.ui.main_display = st7789.ST7789(
data_bus=display_bus,
frame_buffer1=fb1,
frame_buffer2=fb2,
display_width=170,
display_height=320,
#frame_buffer2=fb2,
display_width=320,
display_height=170,
color_space=lv.COLOR_FORMAT.RGB565,
# color_space=lv.COLOR_FORMAT.RGB888, # not supported on qemu
color_byte_order=st7789.BYTE_ORDER_BGR,
@@ -51,15 +53,17 @@ mpos.ui.main_display = st7789.ST7789(
backlight_pin=38, # needed
backlight_on_state=st7789.STATE_PWM,
offset_x=0,
offset_y=35
offset_y=0
) # this will trigger lv.init()
mpos.ui.main_display.set_power(True) # set RD pin to high before the rest, otherwise garbled output
mpos.ui.main_display.init()
mpos.ui.main_display.set_backlight(100) # works
mpos.ui.main_display.set_rotation(lv.DISPLAY_ROTATION._270) # must be done after initializing display and creating the touch drivers, to ensure proper handling
#mpos.ui.main_display.set_rotation(lv.DISPLAY_ROTATION._270) # must be done after initializing display and creating the touch drivers, to ensure proper handling
mpos.ui.main_display.set_rotation(lv.DISPLAY_ROTATION._180)
mpos.ui.main_display.set_color_inversion(True)
mpos.ui.frame_buffer1 = fb1
# Button handling code:
from machine import Pin