def LCD_WriteByte(Data, Command):
if (Command != 0):
ControlGPIO.VGI_SetPins(ControlGPIO.VGI_USBGPIO, 0, LCD_DC_PIN)
else:
ControlGPIO.VGI_ResetPins(ControlGPIO.VGI_USBGPIO, 0, LCD_DC_PIN)
ControlSPI.VSI_WriteBytes(ControlSPI.VSI_USBSPI, 0, 0,
byref(c_uint8(Data)), 1)
print("Set pin output error!")
exit()
else:
print("Set pin output success!")
# GPIO_7 and GPIO_8 -> high level
nRet = ControlGPIO.VGI_SetOutput(
ControlGPIO.VGI_USBGPIO, 0,
ControlGPIO.VGI_GPIO_PIN7 | ControlGPIO.VGI_GPIO_PIN8)
if (nRet != ControlGPIO.ERR_SUCCESS):
print("Set pin high error!")
exit()
else:
print("Set pin high success!")
# GPIO_7 and GPIO_8 -> low level
nRet = ControlGPIO.VGI_ResetPins(
ControlGPIO.VGI_USBGPIO, 0,
ControlGPIO.VGI_GPIO_PIN7 | ControlGPIO.VGI_GPIO_PIN8)
if (nRet != ControlGPIO.ERR_SUCCESS):
print("Set pin low error!")
exit()
else:
print("Set pin low success!")
# Read data from 0x08
ReadData = (c_byte * 8)()
for i in range(0, len(ReadData)):
ReadData[i] = 0
nRet = ControlI2C.VII_ReadBytes(ControlI2C.VII_USBI2C, 0, 0, 0xA0, 0x08,
byref(ReadData), 8)
if (nRet != ControlI2C.ERR_SUCCESS):
print("Read data error! %d" % nRet)
def LCD_Reset():
ControlGPIO.VGI_ResetPins(ControlGPIO.VGI_USBGPIO, 0, LCD_RST_PIN)
sleep(0.01)
ControlGPIO.VGI_SetPins(ControlGPIO.VGI_USBGPIO, 0, LCD_RST_PIN)
def LCD_SetBacklightState(state):
if (state != 0):
ControlGPIO.VGI_SetPins(ControlGPIO.VGI_USBGPIO, 0, LCD_BL_PIN)
else:
ControlGPIO.VGI_ResetPins(ControlGPIO.VGI_USBGPIO, 0, LCD_BL_PIN)
