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)
def procControlGPIO():
pinId = request.args['pId'] # parse pinID on request parameter
proc = request.args['proc'] # parse pinOnOff on request parameter
callback = request.args['callback'] # parse callback string ( jsonp )
if proc and proc == "on":
ret = ControlGPIO.pinHigh(pinId)
return callback + "(" + str(ret) + ")"
elif proc == "off":
ret = ControlGPIO.pinLow(pinId)
return callback + "(" + str(ret) + ")"
def readControlGPIO():
uId = request.args['deviceUid']
pinId = request.args['pinId'] # parse pinID on request parameter
callback = request.args['callback'] # parse callback string ( jsonp )
ret = ControlGPIO.pinStatus(uId, pinId)
return callback + "(" + str(ret) + ")"
def ConfigAdapter():
nRet = ControlSPI.VSI_ScanDevice()
if (nRet <= 0):
print("No device connect!")
exit()
else:
print(nRet)
nRet = ControlSPI.VSI_OpenDevice(ControlSPI.VSI_USBSPI, 0, 0)
if (nRet != ControlSPI.ERR_SUCCESS):
print("No device connect!")
print(nRet)
exit()
SPI_Init = ControlSPI.VSI_INIT_CONFIG()
SPI_Init.ClockSpeed = 4500000
SPI_Init.ControlMode = 1
SPI_Init.CPHA = 0
SPI_Init.CPOL = 0
SPI_Init.LSBFirst = 0
SPI_Init.MasterMode = 1
SPI_Init.SelPolarity = 0
SPI_Init.TranBits = 8
nRet = ControlSPI.VSI_InitSPI(ControlSPI.VSI_USBSPI, 0, byref(SPI_Init))
if (nRet != ControlSPI.ERR_SUCCESS):
print("Initialization device error!")
exit()
else:
print("Initialization device success!")
#Config RST,DC,BL pin
nRet = ControlGPIO.VGI_SetOutput(ControlGPIO.VGI_USBGPIO, 0,
LCD_BL_PIN | LCD_DC_PIN | LCD_RST_PIN)
if (nRet != ControlSPI.ERR_SUCCESS):
print("Config GPIO error!!")
exit()
else:
print("Config GPIO success!")
WriteData = (c_byte * 8)()
for i in range(0, len(WriteData)):
WriteData[i] = i
nRet = ControlI2C.VII_WriteBytes(ControlI2C.VII_USBI2C, 0, 0, 0xA0, 0x08,
byref(WriteData), 8)
if (nRet != ControlI2C.ERR_SUCCESS):
print("Write data error! %d" % nRet)
exit()
else:
print("Write data success!")
# Delay to ensure write complete
sleep(0.1)
# Control GPIO
# Set GPIO_7 and GPIO_8 to output mode
nRet = ControlGPIO.VGI_SetOutput(
ControlGPIO.VGI_USBGPIO, 0,
ControlGPIO.VGI_GPIO_PIN7 | ControlGPIO.VGI_GPIO_PIN8)
if (nRet != ControlGPIO.ERR_SUCCESS):
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!")
Program test environment
Pyhone version:3.4.1
Firmware version:2.7.21
Dependent files(MacOSX):libGinkgo_Driver.dylib,libusb-0.1.4.dylib,libusb-1.0.0.dylib,ControlGPIO.py
Dependent files(Windows):Ginkgo_Driver.dll,ControlGPIO.py
Dependent files(Linux):libGinkgo_Driver.so,libusb-1.0.so,ControlGPIO.py
More Infomation:www.viewtool.com
"""
from ctypes import *
from time import sleep
# import USB-GPIO module
import ControlGPIO
# Scan device(must call one more time)
nRet = c_int(0)
nRet = ControlGPIO.VGI_ScanDevice(1)
if (nRet <= 0):
print("No device connect!")
exit()
else:
print("Connected device number is:" + repr(nRet))
# Open device(must call)
nRet = ControlGPIO.VGI_OpenDevice(ControlGPIO.VGI_USBGPIO, 0, 0)
if (nRet != ControlGPIO.ERR_SUCCESS):
print("Open device error!")
exit()
else:
print("Open device success!")
# Set GPIO_7 and GPIO_8 to output
nRet = ControlGPIO.VGI_SetOutput(
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)
