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Thomas Farstrike
88 lines
2.3 KiB
Python
88 lines
2.3 KiB
Python
# Hardware initialization for ESP32-S3-Touch-LCD-2
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# Manufacturer's website at https://www.waveshare.com/wiki/ESP32-S3-Touch-LCD-2
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from machine import Pin, SPI
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import st7789
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import lcd_bus
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import machine
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import cst816s
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import i2c
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import lvgl as lv
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import task_handler
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import mpos.ui
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# Pin configuration
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SPI_BUS = 2
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SPI_FREQ = 40000000
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LCD_SCLK = 39
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LCD_MOSI = 38
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LCD_MISO = 40
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LCD_DC = 42
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LCD_CS = 45
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LCD_BL = 1
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I2C_BUS = 0
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I2C_FREQ = 100000
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TP_SDA = 48
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TP_SCL = 47
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TP_ADDR = 0x15
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TP_REGBITS = 8
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TFT_HOR_RES=320
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TFT_VER_RES=240
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spi_bus = machine.SPI.Bus(
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host=SPI_BUS,
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mosi=LCD_MOSI,
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miso=LCD_MISO,
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sck=LCD_SCLK
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)
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display_bus = lcd_bus.SPIBus(
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spi_bus=spi_bus,
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freq=SPI_FREQ,
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dc=LCD_DC,
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cs=LCD_CS,
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)
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# lv.color_format_get_size(lv.COLOR_FORMAT.RGB565) = 2 bytes per pixel * 320 * 240 px = 153600 bytes
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# The default was /10 so 15360 bytes.
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# /2 = 76800 shows something on display and then hangs the board
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# /2 = 38400 works and pretty high framerate but camera gets ESP_FAIL
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# /2 = 19200 works, including camera at 9FPS
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# 28800 is between the two and still works with camera!
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# 30720 is /5 and is already too much
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_BUFFER_SIZE = const(28800)
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fb1 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
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fb2 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
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display = st7789.ST7789(
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data_bus=display_bus,
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frame_buffer1=fb1,
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frame_buffer2=fb2,
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display_width=TFT_VER_RES,
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display_height=TFT_HOR_RES,
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backlight_pin=LCD_BL,
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backlight_on_state=st7789.STATE_PWM,
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color_space=lv.COLOR_FORMAT.RGB565,
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color_byte_order=st7789.BYTE_ORDER_BGR,
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rgb565_byte_swap=True,
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)
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display.init()
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display.set_power(True)
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display.set_backlight(100)
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# Touch handling:
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i2c_bus = i2c.I2C.Bus(host=I2C_BUS, scl=TP_SCL, sda=TP_SDA, freq=I2C_FREQ, use_locks=False)
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touch_dev = i2c.I2C.Device(bus=i2c_bus, dev_id=TP_ADDR, reg_bits=TP_REGBITS)
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indev=cst816s.CST816S(touch_dev,startup_rotation=lv.DISPLAY_ROTATION._180) # button in top left, good
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lv.init()
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display.set_rotation(lv.DISPLAY_ROTATION._90) # must be done after initializing display and creating the touch drivers, to ensure proper handling
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# Battery voltage ADC measuring
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import mpos.battery_voltage
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mpos.battery_voltage.init_adc(5, 262 / 100000)
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print("boot.py finished")
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