upcd8544.py 文件源码

def __init__(self, spi, rst, ce, dc, light, pwr=None):
        self.width  = 84
        self.height = 48
        self.power      = self.POWER_DOWN
        self.addressing = self.ADDRESSING_HORIZ
        self.instr      = self.INSTR_BASIC
        self.display_mode = self.DISPLAY_BLANK
        self.temp_coeff = self.TEMP_COEFF_0
        self.bias       = self.BIAS_1_11
        self.voltage    = 3060

        # init the SPI bus and pins
        spi.init(spi.MASTER, baudrate=328125, bits=8, polarity=0, phase=1, firstbit=spi.MSB)
        if "OUT_PP" in dir(rst):
            # pyBoard style
            rst.init(rst.OUT_PP, rst.PULL_NONE)  # Reset line
            ce.init(ce.OUT_PP, ce.PULL_NONE)     # Chip Enable
            dc.init(dc.OUT_PP, dc.PULL_NONE)     # Data(1) / Command(0) mode
            light.init(light.OUT_PP, light.PULL_NONE)
            if pwr:
                pwr.init(pwr.OUT_PP, pwr.PULL_NONE)
        else:
            # WiPy style
            rst.init(rst.OUT, None)
            ce.init(ce.OUT, None)
            dc.init(dc.OUT, None)
            light.init(light.OUT, None)
            if pwr:
                pwr.init(pwr.OUT, None)

        self.spi   = spi
        self.rst   = rst
        self.ce    = ce
        self.dc    = dc
        self.light = light
        self.pwr   = pwr

        self.light_off()
        self.power_on()
        self.ce.value(1)  # set chip to disable (don't listen to input)
        self.reset()
        self.set_contrast(0xbf)
        self.clear()

        self.lcd_font = font.FONT6_8()