add components/epaper/EPD_4in2_V2.c.

新增4.2寸墨水屏SSD1683  主控的驱动，不过这个只能刷新黑白

Signed-off-by: yingfumei96 <yingfumei961108@126.com>

components/epaper/EPD_4in2_V2.c

@@ -0,0 +1,576 @@
+/*****************************************************************************
+* | File      	:   EPD_4in2_V2.h
+* | Author      :   Waveshare team
+* | Function    :   4.2inch e-paper V2
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2023-09-11
+* | Info        :
+* -----------------------------------------------------------------------------
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_4in2_V2.h"
+#include "Debug.h"
+
+const unsigned char LUT_ALL[233]={							
+0x01,	0x0A,	0x1B,	0x0F,	0x03,	0x01,	0x01,	
+0x05,	0x0A,	0x01,	0x0A,	0x01,	0x01,	0x01,	
+0x05,	0x08,	0x03,	0x02,	0x04,	0x01,	0x01,	
+0x01,	0x04,	0x04,	0x02,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x0A,	0x1B,	0x0F,	0x03,	0x01,	0x01,	
+0x05,	0x4A,	0x01,	0x8A,	0x01,	0x01,	0x01,	
+0x05,	0x48,	0x03,	0x82,	0x84,	0x01,	0x01,	
+0x01,	0x84,	0x84,	0x82,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x0A,	0x1B,	0x8F,	0x03,	0x01,	0x01,	
+0x05,	0x4A,	0x01,	0x8A,	0x01,	0x01,	0x01,	
+0x05,	0x48,	0x83,	0x82,	0x04,	0x01,	0x01,	
+0x01,	0x04,	0x04,	0x02,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x8A,	0x1B,	0x8F,	0x03,	0x01,	0x01,	
+0x05,	0x4A,	0x01,	0x8A,	0x01,	0x01,	0x01,	
+0x05,	0x48,	0x83,	0x02,	0x04,	0x01,	0x01,	
+0x01,	0x04,	0x04,	0x02,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x8A,	0x9B,	0x8F,	0x03,	0x01,	0x01,	
+0x05,	0x4A,	0x01,	0x8A,	0x01,	0x01,	0x01,	
+0x05,	0x48,	0x03,	0x42,	0x04,	0x01,	0x01,	
+0x01,	0x04,	0x04,	0x42,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x01,	0x00,	0x00,	0x00,	0x00,	0x01,	0x01,	
+0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	
+0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	0x00,	
+0x02,	0x00,	0x00,	0x07,	0x17,	0x41,	0xA8,	
+0x32,	0x30,						
+};		
+
+/******************************************************************************
+function :	Software reset
+parameter:
+******************************************************************************/
+static void EPD_4IN2_V2_Reset(void)
+{
+    DEV_Digital_Write(EPD_RST_PIN, 1);
+    DEV_Delay_ms(100);
+    DEV_Digital_Write(EPD_RST_PIN, 0);
+    DEV_Delay_ms(2);
+    DEV_Digital_Write(EPD_RST_PIN, 1);
+    DEV_Delay_ms(100);
+}
+
+/******************************************************************************
+function :	send command
+parameter:
+     Reg : Command register
+******************************************************************************/
+static void EPD_4IN2_V2_SendCommand(UBYTE Reg)
+{
+    DEV_Digital_Write(EPD_DC_PIN, 0);
+    DEV_Digital_Write(EPD_CS_PIN, 0);
+    DEV_SPI_WriteByte(Reg);
+    DEV_Digital_Write(EPD_CS_PIN, 1);
+}
+
+/******************************************************************************
+function :	send data
+parameter:
+    Data : Write data
+******************************************************************************/
+static void EPD_4IN2_V2_SendData(UBYTE Data)
+{
+    DEV_Digital_Write(EPD_DC_PIN, 1);
+    DEV_Digital_Write(EPD_CS_PIN, 0);
+    DEV_SPI_WriteByte(Data);
+    DEV_Digital_Write(EPD_CS_PIN, 1);
+}
+
+/******************************************************************************
+function :	Wait until the busy_pin goes LOW
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_ReadBusy(void)
+{
+    Debug("e-Paper busy\r\n");
+    while(DEV_Digital_Read(EPD_BUSY_PIN) == 1) {      //LOW: idle, HIGH: busy
+        DEV_Delay_ms(10);
+    }
+    Debug("e-Paper busy release\r\n");
+}
+
+/******************************************************************************
+function :	Turn On Display
+parameter:
+******************************************************************************/
+static void EPD_4IN2_V2_TurnOnDisplay(void)
+{
+    EPD_4IN2_V2_SendCommand(0x22);
+	EPD_4IN2_V2_SendData(0xF7);
+    EPD_4IN2_V2_SendCommand(0x20);
+    EPD_4IN2_V2_ReadBusy();
+}
+
+static void EPD_4IN2_V2_TurnOnDisplay_Fast(void)
+{
+    EPD_4IN2_V2_SendCommand(0x22);
+	EPD_4IN2_V2_SendData(0xC7);
+    EPD_4IN2_V2_SendCommand(0x20);
+    EPD_4IN2_V2_ReadBusy();
+}
+
+static void EPD_4IN2_V2_TurnOnDisplay_Partial(void)
+{
+    EPD_4IN2_V2_SendCommand(0x22);
+	EPD_4IN2_V2_SendData(0xFF);
+    EPD_4IN2_V2_SendCommand(0x20);
+    EPD_4IN2_V2_ReadBusy();
+}
+
+static void EPD_4IN2_V2_TurnOnDisplay_4Gray(void)
+{
+    EPD_4IN2_V2_SendCommand(0x22);
+	EPD_4IN2_V2_SendData(0xCF);
+    EPD_4IN2_V2_SendCommand(0x20);
+    EPD_4IN2_V2_ReadBusy();
+}
+
+/******************************************************************************
+function :	Setting the display window
+parameter:
+******************************************************************************/
+static void EPD_4IN2_V2_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
+{
+    EPD_4IN2_V2_SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
+    EPD_4IN2_V2_SendData((Xstart>>3) & 0xFF);
+    EPD_4IN2_V2_SendData((Xend>>3) & 0xFF);
+	
+    EPD_4IN2_V2_SendCommand(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION
+    EPD_4IN2_V2_SendData(Ystart & 0xFF);
+    EPD_4IN2_V2_SendData((Ystart >> 8) & 0xFF);
+    EPD_4IN2_V2_SendData(Yend & 0xFF);
+    EPD_4IN2_V2_SendData((Yend >> 8) & 0xFF);
+}
+
+/******************************************************************************
+function :	Set Cursor
+parameter:
+******************************************************************************/
+static void EPD_4IN2_V2_SetCursor(UWORD Xstart, UWORD Ystart)
+{
+    EPD_4IN2_V2_SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
+    EPD_4IN2_V2_SendData(Xstart & 0xFF);
+
+    EPD_4IN2_V2_SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER
+    EPD_4IN2_V2_SendData(Ystart & 0xFF);
+    EPD_4IN2_V2_SendData((Ystart >> 8) & 0xFF);
+}
+
+//LUT download
+static void EPD_4IN2_V2_4Gray_lut(void)
+{
+    unsigned char i;
+
+    //WS byte 0~152, the content of VS[nX-LUTm], TP[nX], RP[n], SR[nXY], FR[n] and XON[nXY]
+    EPD_4IN2_V2_SendCommand(0x32);					
+    for(i=0;i<227;i++)
+    {
+        EPD_4IN2_V2_SendData(LUT_ALL[i]);
+    }	
+    //WS byte 153, the content of Option for LUT end	
+    EPD_4IN2_V2_SendCommand(0x3F);					
+    EPD_4IN2_V2_SendData(LUT_ALL[i++]);
+
+    //WS byte 154, the content of gate leve
+    EPD_4IN2_V2_SendCommand(0x03);					
+    EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VGH
+
+    //WS byte 155~157, the content of source level
+    EPD_4IN2_V2_SendCommand(0x04);					
+    EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VSH1
+    EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VSH2
+    EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VSL
+
+    //WS byte 158, the content of VCOM level
+    EPD_4IN2_V2_SendCommand(0x2c);					
+    EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VCOM
+}
+
+/******************************************************************************
+function :	Initialize the e-Paper register
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_Init(void)
+{
+    EPD_4IN2_V2_Reset();
+
+    EPD_4IN2_V2_ReadBusy();   
+    EPD_4IN2_V2_SendCommand(0x12);   // soft  reset
+    EPD_4IN2_V2_ReadBusy();
+	
+    // EPD_4IN2_V2_SendCommand(0x01); //Driver output control      
+    // EPD_4IN2_V2_SendData((EPD_4IN2_V2_HEIGHT-1)%256);   
+    // EPD_4IN2_V2_SendData((EPD_4IN2_V2_HEIGHT-1)/256);
+    // EPD_4IN2_V2_SendData(0x00);
+
+    EPD_4IN2_V2_SendCommand(0x21); //  Display update control
+    EPD_4IN2_V2_SendData(0x40);		
+    EPD_4IN2_V2_SendData(0x00);		
+
+    EPD_4IN2_V2_SendCommand(0x3C); //BorderWavefrom
+    EPD_4IN2_V2_SendData(0x05);
+	
+    EPD_4IN2_V2_SendCommand(0x11);	// data  entry  mode
+    EPD_4IN2_V2_SendData(0x03);		// X-mode   
+		
+	EPD_4IN2_V2_SetWindows(0, 0, EPD_4IN2_V2_WIDTH-1, EPD_4IN2_V2_HEIGHT-1);
+	 
+	EPD_4IN2_V2_SetCursor(0, 0);
+	
+    EPD_4IN2_V2_ReadBusy();
+}
+
+/******************************************************************************
+function :	Initialize Fast the e-Paper register
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_Init_Fast(UBYTE Mode)
+{
+    EPD_4IN2_V2_Reset();
+
+    EPD_4IN2_V2_ReadBusy();   
+    EPD_4IN2_V2_SendCommand(0x12);   // soft  reset
+    EPD_4IN2_V2_ReadBusy();
+
+    EPD_4IN2_V2_SendCommand(0x21);	 
+    EPD_4IN2_V2_SendData(0x40);
+    EPD_4IN2_V2_SendData(0x00); 
+
+    EPD_4IN2_V2_SendCommand(0x3C);     
+    EPD_4IN2_V2_SendData(0x05);  
+
+    if(Mode == Seconds_1_5S)
+    {
+        //1.5s
+        EPD_4IN2_V2_SendCommand(0x1A); // Write to temperature register
+        EPD_4IN2_V2_SendData(0x6E);		
+    }
+    else if(Mode == Seconds_1S)
+    {
+        //1s
+        EPD_4IN2_V2_SendCommand(0x1A); // Write to temperature register
+        EPD_4IN2_V2_SendData(0x5A);	
+    }
+                 
+    EPD_4IN2_V2_SendCommand(0x22); // Load temperature value
+    EPD_4IN2_V2_SendData(0x91);		
+    EPD_4IN2_V2_SendCommand(0x20);	
+    EPD_4IN2_V2_ReadBusy();   
+	
+    EPD_4IN2_V2_SendCommand(0x11);	// data  entry  mode
+    EPD_4IN2_V2_SendData(0x03);		// X-mode   
+		
+	EPD_4IN2_V2_SetWindows(0, 0, EPD_4IN2_V2_WIDTH-1, EPD_4IN2_V2_HEIGHT-1);
+	 
+	EPD_4IN2_V2_SetCursor(0, 0);
+	
+    EPD_4IN2_V2_ReadBusy();
+}
+
+
+void EPD_4IN2_V2_Init_4Gray(void)
+{
+    EPD_4IN2_V2_Reset();
+
+    EPD_4IN2_V2_SendCommand(0x12);  //SWRESET
+    EPD_4IN2_V2_ReadBusy();   
+
+    EPD_4IN2_V2_SendCommand(0x21);	 
+    EPD_4IN2_V2_SendData(0x00);
+    EPD_4IN2_V2_SendData(0x00);
+
+    EPD_4IN2_V2_SendCommand(0x3C);     
+    EPD_4IN2_V2_SendData(0x03);
+
+    EPD_4IN2_V2_SendCommand(0x0C); //BTST
+    EPD_4IN2_V2_SendData(0x8B);//8B
+    EPD_4IN2_V2_SendData(0x9C);//9C
+    EPD_4IN2_V2_SendData(0xA4);//96 A4
+    EPD_4IN2_V2_SendData(0x0F);//0F	
+
+    // EPD_4IN2_V2_SendCommand(0x01);   // 驱动输出控制      drive output control    
+    // EPD_4IN2_V2_SendData(0x2B); //  Y 的低字节 
+    // EPD_4IN2_V2_SendData(0x01); //  Y 的高字节 
+    // EPD_4IN2_V2_SendData(0x00);
+
+    EPD_4IN2_V2_4Gray_lut(); //LUT
+
+    EPD_4IN2_V2_SendCommand(0x11);	// data  entry  mode
+    EPD_4IN2_V2_SendData(0x03);		// X-mode   
+		
+	EPD_4IN2_V2_SetWindows(0, 0, EPD_4IN2_V2_WIDTH-1, EPD_4IN2_V2_HEIGHT-1);
+	 
+	EPD_4IN2_V2_SetCursor(0, 0);
+}
+/******************************************************************************
+function :	Clear screen
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_Clear(void)
+{
+    UWORD Width, Height;
+    Width = (EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 8 ): (EPD_4IN2_V2_WIDTH / 8 + 1);
+    Height = EPD_4IN2_V2_HEIGHT;
+
+    EPD_4IN2_V2_SendCommand(0x24);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            EPD_4IN2_V2_SendData(0xFF);
+        }
+    }
+
+    EPD_4IN2_V2_SendCommand(0x26);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            EPD_4IN2_V2_SendData(0xFF);
+        }
+    }
+    EPD_4IN2_V2_TurnOnDisplay();
+}
+
+/******************************************************************************
+function :	Sends the image buffer in RAM to e-Paper and displays
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_Display(UBYTE *Image)
+{
+    UWORD Width, Height;
+    Width = (EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 8 ): (EPD_4IN2_V2_WIDTH / 8 + 1);
+    Height = EPD_4IN2_V2_HEIGHT;
+
+    EPD_4IN2_V2_SendCommand(0x24);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            EPD_4IN2_V2_SendData(Image[i + j * Width]);
+        }
+    }
+
+    EPD_4IN2_V2_SendCommand(0x26);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            EPD_4IN2_V2_SendData(Image[i + j * Width]);
+        }
+    }
+    EPD_4IN2_V2_TurnOnDisplay();
+}
+
+/******************************************************************************
+function :	Sends the image buffer in RAM to e-Paper and fast displays
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_Display_Fast(UBYTE *Image)
+{
+    UWORD Width, Height;
+    Width = (EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 8 ): (EPD_4IN2_V2_WIDTH / 8 + 1);
+    Height = EPD_4IN2_V2_HEIGHT;
+
+    EPD_4IN2_V2_SendCommand(0x24);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            EPD_4IN2_V2_SendData(Image[i + j * Width]);
+        }
+    }
+
+    EPD_4IN2_V2_SendCommand(0x26);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            EPD_4IN2_V2_SendData(Image[i + j * Width]);
+        }
+    }
+    EPD_4IN2_V2_TurnOnDisplay_Fast();
+}
+
+
+void EPD_4IN2_V2_Display_4Gray(UBYTE *Image)
+{
+    UDOUBLE i,j,k,m;
+    UBYTE temp1,temp2,temp3;
+/****Color display description****
+      white  gray2  gray1  black
+0x10|  01     01     00     00
+0x13|  01     00     01     00
+*********************************/
+	EPD_4IN2_V2_SendCommand(0x24);	       
+	// EPD_4IN2_HEIGHT
+	// EPD_4IN2_WIDTH
+	for(m = 0; m<EPD_4IN2_V2_HEIGHT;m++)
+		for(i=0;i<EPD_4IN2_V2_WIDTH/8;i++)
+		{
+			temp3=0;
+			for(j=0;j<2;j++)	
+			{
+				
+				temp1 = Image[(m*(EPD_4IN2_V2_WIDTH/8)+i)*2+j];
+				for(k=0;k<2;k++)	
+				{
+					temp2 = temp1&0xC0 ;
+					if(temp2 == 0xC0)
+						temp3 |= 0x01;//white
+					else if(temp2 == 0x00)
+						temp3 |= 0x00;  //black
+					else if(temp2 == 0x80) 
+						temp3 |= 0x00;  //gray1
+					else //0x40
+						temp3 |= 0x01; //gray2
+					temp3 <<= 1;	
+					
+					temp1 <<= 2;
+					temp2 = temp1&0xC0 ;
+					if(temp2 == 0xC0)  //white
+						temp3 |= 0x01;
+					else if(temp2 == 0x00) //black
+						temp3 |= 0x00;
+					else if(temp2 == 0x80)
+						temp3 |= 0x00; //gray1
+					else    //0x40
+							temp3 |= 0x01;	//gray2	
+					if(j!=1 || k!=1)				
+						temp3 <<= 1;
+					
+					temp1 <<= 2;
+				}
+				
+			 }
+			EPD_4IN2_V2_SendData(temp3);			
+		}
+    // new  data
+    EPD_4IN2_V2_SendCommand(0x26);	 
+	for(m = 0; m<EPD_4IN2_V2_HEIGHT;m++)
+		for(i=0;i<EPD_4IN2_V2_WIDTH/8;i++)
+		{
+			temp3=0;
+			for(j=0;j<2;j++)	
+			{
+				temp1 = Image[(m*(EPD_4IN2_V2_WIDTH/8)+i)*2+j];
+				for(k=0;k<2;k++)	
+				{
+					temp2 = temp1&0xC0 ;
+					if(temp2 == 0xC0)
+						temp3 |= 0x01;//white
+					else if(temp2 == 0x00)
+						temp3 |= 0x00;  //black
+					else if(temp2 == 0x80) 
+						temp3 |= 0x01;  //gray1
+					else //0x40
+						temp3 |= 0x00; //gray2
+					temp3 <<= 1;	
+					
+					temp1 <<= 2;
+					temp2 = temp1&0xC0 ;
+					if(temp2 == 0xC0)  //white
+						temp3 |= 0x01;
+					else if(temp2 == 0x00) //black
+						temp3 |= 0x00;
+					else if(temp2 == 0x80)
+						temp3 |= 0x01; //gray1
+					else    //0x40
+							temp3 |= 0x00;	//gray2
+					if(j!=1 || k!=1)					
+						temp3 <<= 1;
+					
+					temp1 <<= 2;
+				}
+				
+			 }
+			EPD_4IN2_V2_SendData(temp3);	
+		}
+    EPD_4IN2_V2_TurnOnDisplay_4Gray();
+}
+
+// Send partial data for partial refresh
+void EPD_4IN2_V2_PartialDisplay(UBYTE *Image, UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
+{
+    if((Xstart % 8 + Xend % 8 == 8 && Xstart % 8 > Xend % 8) || Xstart % 8 + Xend % 8 == 0 || (Xend - Xstart)%8 == 0)
+	{
+			Xstart = Xstart / 8 ;
+			Xend = Xend / 8;
+	}
+	else
+	{
+			Xstart = Xstart / 8 ;
+			Xend = Xend % 8 == 0 ? Xend / 8 : Xend / 8 + 1;
+	}
+
+
+	UWORD i, Width;
+	Width = Xend -  Xstart;
+	UWORD IMAGE_COUNTER = Width * (Yend-Ystart);
+
+	Xend -= 1;
+	Yend -= 1;	
+
+	EPD_4IN2_V2_SendCommand(0x3C); //BorderWavefrom,
+	EPD_4IN2_V2_SendData(0x80);	
+
+	EPD_4IN2_V2_SendCommand(0x21); 
+	EPD_4IN2_V2_SendData(0x00);
+	EPD_4IN2_V2_SendData(0x00);
+
+	EPD_4IN2_V2_SendCommand(0x3C); 
+	EPD_4IN2_V2_SendData(0x80); 
+
+	EPD_4IN2_V2_SendCommand(0x44);       // set RAM x address start/end, in page 35
+	EPD_4IN2_V2_SendData(Xstart & 0xff);    // RAM x address start at 00h;
+	EPD_4IN2_V2_SendData(Xend & 0xff);    // RAM x address end at 0fh(15+1)*8->128 
+	EPD_4IN2_V2_SendCommand(0x45);       // set RAM y address start/end, in page 35
+	EPD_4IN2_V2_SendData(Ystart & 0xff);    // RAM y address start at 0127h;
+	EPD_4IN2_V2_SendData((Ystart>>8) & 0x01);    // RAM y address start at 0127h;
+	EPD_4IN2_V2_SendData(Yend & 0xff);    // RAM y address end at 00h;
+	EPD_4IN2_V2_SendData((Yend>>8) & 0x01); 
+
+	EPD_4IN2_V2_SendCommand(0x4E);   // set RAM x address count to 0;
+	EPD_4IN2_V2_SendData(Xstart & 0xff); 
+	EPD_4IN2_V2_SendCommand(0x4F);   // set RAM y address count to 0X127;    
+	EPD_4IN2_V2_SendData(Ystart & 0xff);
+	EPD_4IN2_V2_SendData((Ystart>>8) & 0x01);
+	
+    EPD_4IN2_V2_SendCommand(0x24);
+    for (i = 0; i < IMAGE_COUNTER; i++) {
+		EPD_4IN2_V2_SendData(Image[i]);
+	}
+	
+	EPD_4IN2_V2_TurnOnDisplay_Partial();
+}
+
+/******************************************************************************
+function :	Enter sleep mode
+parameter:
+******************************************************************************/
+void EPD_4IN2_V2_Sleep(void)
+{
+    EPD_4IN2_V2_SendCommand(0x10); // DEEP_SLEEP
+    EPD_4IN2_V2_SendData(0x01);
+	DEV_Delay_ms(200);
+}