67 lines
2.1 KiB
Python
67 lines
2.1 KiB
Python
import board
|
|
import displayio
|
|
|
|
# Release any previously configured displays
|
|
displayio.release_displays()
|
|
|
|
# Setup SPI bus
|
|
spi_bus = board.SPI()
|
|
|
|
# Digital pins to use
|
|
tft_cs = board.D10
|
|
tft_dc = board.D9
|
|
|
|
# Setup the display bus
|
|
display_bus = displayio.FourWire(spi_bus, command=tft_dc, chip_select=tft_cs)
|
|
|
|
# Setup the initialization sequence
|
|
# stolen from adafruit_ili9341.py
|
|
INIT_SEQUENCE = (
|
|
b"\x01\x80\x80" # Software reset then delay 0x80 (128ms)
|
|
b"\xEF\x03\x03\x80\x02"
|
|
b"\xCF\x03\x00\xC1\x30"
|
|
b"\xED\x04\x64\x03\x12\x81"
|
|
b"\xE8\x03\x85\x00\x78"
|
|
b"\xCB\x05\x39\x2C\x00\x34\x02"
|
|
b"\xF7\x01\x20"
|
|
b"\xEA\x02\x00\x00"
|
|
b"\xc0\x01\x23" # Power control VRH[5:0]
|
|
b"\xc1\x01\x10" # Power control SAP[2:0];BT[3:0]
|
|
b"\xc5\x02\x3e\x28" # VCM control
|
|
b"\xc7\x01\x86" # VCM control2
|
|
b"\x36\x01\x38" # Memory Access Control
|
|
b"\x37\x01\x00" # Vertical scroll zero
|
|
b"\x3a\x01\x55" # COLMOD: Pixel Format Set
|
|
b"\xb1\x02\x00\x18" # Frame Rate Control (In Normal Mode/Full Colors)
|
|
b"\xb6\x03\x08\x82\x27" # Display Function Control
|
|
b"\xF2\x01\x00" # 3Gamma Function Disable
|
|
b"\x26\x01\x01" # Gamma curve selected
|
|
b"\xe0\x0f\x0F\x31\x2B\x0C\x0E\x08\x4E\xF1\x37\x07\x10\x03\x0E\x09\x00" # Set Gamma
|
|
b"\xe1\x0f\x00\x0E\x14\x03\x11\x07\x31\xC1\x48\x08\x0F\x0C\x31\x36\x0F" # Set Gamma
|
|
b"\x11\x80\x78" # Exit Sleep then delay 0x78 (120ms)
|
|
b"\x29\x80\x78" # Display on then delay 0x78 (120ms)
|
|
)
|
|
|
|
# Setup the Display
|
|
display = displayio.Display(display_bus, INIT_SEQUENCE, width=320, height=240)
|
|
|
|
#
|
|
# DONE - now you can use the display however you want
|
|
#
|
|
|
|
bitmap = displayio.Bitmap(320, 240, 2)
|
|
|
|
palette = displayio.Palette(2)
|
|
palette[0] = 0
|
|
palette[1] = 0xFFFFFF
|
|
|
|
for x in range(10, 20):
|
|
for y in range(10, 20):
|
|
bitmap[x, y] = 1
|
|
|
|
tile_grid = displayio.TileGrid(bitmap, pixel_shader=palette)
|
|
|
|
group = displayio.Group()
|
|
group.append(tile_grid)
|
|
display.show(group)
|
|
display.refresh_soon()
|