def LCD_Reset(self):
GPIO.output(LCD_Config.LCD_RST_PIN, GPIO.HIGH)
LCD_Config.Driver_Delay_ms(100)
GPIO.output(LCD_Config.LCD_RST_PIN, GPIO.LOW)
LCD_Config.Driver_Delay_ms(100)
GPIO.output(LCD_Config.LCD_RST_PIN, GPIO.HIGH)
LCD_Config.Driver_Delay_ms(100)
def LCD_Clear(self):
# hello
_buffer = [0xFF] * (self.width * self.height * 2)
self.LCD_SetWindows(0, 0, self.width, self.height)
GPIO.output(LCD_Config.LCD_DC_PIN, GPIO.HIGH)
for i in range(0, len(_buffer), 4096):
LCD_Config.SPI_Write_Byte(_buffer[i:i + 4096])
def LCD_Init(self, Lcd_ScanDir):
if LCD_Config.GPIO_Init() != 0:
return -1
# Turn on the backlight
GPIO.output(LCD_Config.LCD_BL_PIN, GPIO.HIGH)
# Hardware reset
self.LCD_Reset()
# Set the initialization register
self.LCD_InitReg()
# Set the display scan and color transfer modes
self.LCD_SetGramScanWay(Lcd_ScanDir)
LCD_Config.Driver_Delay_ms(200)
# sleep out
self.LCD_WriteReg(0x11)
LCD_Config.Driver_Delay_ms(120)
# Turn on the LCD display
self.LCD_WriteReg(0x29)
def LCD_ShowImage(self, Image, Xstart, Ystart):
if Image == None:
return
imwidth, imheight = Image.size
if imwidth != self.width or imheight != self.height:
raise ValueError("Image must be same dimensions as display \
({0}x{1}).".format(self.width, self.height))
img = np.asarray(Image)
pix = np.zeros((self.width, self.height, 2), dtype=np.uint8)
pix[..., [0]] = np.add(np.bitwise_and(img[..., [0]], 0xF8),
np.right_shift(img[..., [1]], 5))
pix[..., [1]] = np.add(
np.bitwise_and(np.left_shift(img[..., [1]], 3), 0xE0),
np.right_shift(img[..., [2]], 3))
pix = pix.flatten().tolist()
self.LCD_SetWindows(0, 0, self.width, self.height)
GPIO.output(LCD_Config.LCD_DC_PIN, GPIO.HIGH)
for i in range(0, len(pix), 4096):
LCD_Config.SPI_Write_Byte(pix[i:i + 4096])
def LCD_WriteData_NLen16Bit(self, Data, DataLen):
GPIO.output(LCD_Config.LCD_DC_PIN, GPIO.HIGH)
for i in range(0, DataLen):
LCD_Config.SPI_Write_Byte([Data >> 8])
LCD_Config.SPI_Write_Byte([Data & 0xFF])
def LCD_WriteData_8bit(self, Data):
GPIO.output(LCD_Config.LCD_DC_PIN, GPIO.HIGH)
LCD_Config.SPI_Write_Byte([Data])
def LCD_WriteReg(self, Reg):
GPIO.output(LCD_Config.LCD_DC_PIN, GPIO.LOW)
LCD_Config.SPI_Write_Byte([Reg])