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			259 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			259 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*****************************************************************************
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| * | File      	:   EPD_2IN13.c
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| * | Author      :   Waveshare team
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| * | Function    :   2.13inch e-paper
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| * | Info        :
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| *----------------
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| * |	This version:   V3.0
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| * | Date        :   2019-06-12
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| * | Info        :
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| * -----------------------------------------------------------------------------
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| * V3.0(2019-06-12):
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| * 1.Change:
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| *    EPD_Reset() => EPD_2IN13_Reset()
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| *    EPD_SendCommand() => EPD_2IN13_SendCommand()
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| *    EPD_SendData() => EPD_2IN13_SendData()
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| *    EPD_WaitUntilIdle() => EPD_2IN13_ReadBusy()
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| *    EPD_Init() => EPD_2IN13_Init()
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| *    EPD_Clear() => EPD_2IN13_Clear()
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| *    EPD_Display() => EPD_2IN13_Display()
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| *    EPD_Sleep() => EPD_2IN13_Sleep()
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| * -----------------------------------------------------------------------------
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| * V2.0(2019-01-03):
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| * 1.Remove:ImageBuff[EPD_2IN13_HEIGHT * EPD_2IN13_WIDTH / 8]
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| * 2.Change:EPD_Display(UBYTE *Image)
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| *   Need to pass parameters: pointer to cached data
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| * 3.Change:
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| *   EPD_RST -> EPD_RST_PIN
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| *   EPD_DC -> EPD_DC_PIN
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| *   EPD_CS -> EPD_CS_PIN
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| *   EPD_BUSY -> EPD_BUSY_PIN
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| #
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| # Permission is hereby granted, free of charge, to any person obtaining a copy
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| # of this software and associated documnetation files (the "Software"), to deal
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| # in the Software without restriction, including without limitation the rights
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| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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| # copies of the Software, and to permit persons to  whom the Software is
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| # furished to do so, subject to the following conditions:
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| #
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| # The above copyright notice and this permission notice shall be included in
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| # all copies or substantial portions of the Software.
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| #
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| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| # FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| # LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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| # THE SOFTWARE.
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| #
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| ******************************************************************************/
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| #include "EPD_2in13.h"
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| 
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| #ifdef EPD_2IN13
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| 
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| const unsigned char EPD_2IN13_lut_full_update[] = {
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|     0x22, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x11,
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|     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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|     0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E,
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|     0x01, 0x00, 0x00, 0x00, 0x00, 0x00
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| };
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| 
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| const unsigned char EPD_2IN13_lut_partial_update[] = {
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|     0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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|     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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|     0x0F, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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|     0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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| };
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| /******************************************************************************
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| function :	Software reset
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| parameter:
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| ******************************************************************************/
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| static void EPD_2IN13_Reset(void)
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| {
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|     EPD_Digital_Write(EPD_RST_PIN, 1);
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|     EPD_Delay_ms(200);
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|     EPD_Digital_Write(EPD_RST_PIN, 0);
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|     EPD_Delay_ms(2);
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|     EPD_Digital_Write(EPD_RST_PIN, 1);
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|     EPD_Delay_ms(200);
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| }
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| 
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| /******************************************************************************
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| function :	send command
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| parameter:
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|      Reg : Command register
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| ******************************************************************************/
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| static void EPD_2IN13_SendCommand(UBYTE Reg)
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| {
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|     EPD_Digital_Write(EPD_DC_PIN, 0);
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|     EPD_Digital_Write(EPD_CS_PIN, 0);
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|     EPD_SPI_WriteByte(Reg);
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|     EPD_Digital_Write(EPD_CS_PIN, 1);
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| }
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| 
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| /******************************************************************************
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| function :	send data
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| parameter:
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|     Data : Write data
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| ******************************************************************************/
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| static void EPD_2IN13_SendData(UBYTE Data)
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| {
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|     EPD_Digital_Write(EPD_DC_PIN, 1);
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|     EPD_Digital_Write(EPD_CS_PIN, 0);
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|     EPD_SPI_WriteByte(Data);
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|     EPD_Digital_Write(EPD_CS_PIN, 1);
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| }
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| 
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| /******************************************************************************
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| function :	Wait until the busy_pin goes LOW
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| parameter:
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| ******************************************************************************/
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| void EPD_2IN13_ReadBusy(void)
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| {
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|     EPD_Printf("e-Paper busy\r\n");
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|     while(EPD_Digital_Read(EPD_BUSY_PIN) == 1) {      //LOW: idle, HIGH: busy
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|         EPD_Delay_ms(100);
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|     }
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|     EPD_Printf("e-Paper busy release\r\n");
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| }
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| 
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| /******************************************************************************
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| function :	Turn On Display
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| parameter:
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| ******************************************************************************/
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| static void EPD_2IN13_TurnOnDisplay(void)
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| {
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|     EPD_2IN13_SendCommand(0x22); // DISPLAY_UPDATE_CONTROL_2
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|     EPD_2IN13_SendData(0xC4);
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|     EPD_2IN13_SendCommand(0X20);	// MASTER_ACTIVATION
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|     EPD_2IN13_SendCommand(0xFF);	// TERMINATE_FRAME_READ_WRITE
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| 
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|     EPD_2IN13_ReadBusy();
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| }
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| 
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| static void EPD_2IN13_SetWindows(int x_start, int y_start, int x_end, int y_end)
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| {
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|     EPD_2IN13_SendCommand(0x44);
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|     /* x point must be the multiple of 8 or the last 3 bits will be ignored */
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|     EPD_2IN13_SendData((x_start >> 3) & 0xFF);
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|     EPD_2IN13_SendData((x_end >> 3) & 0xFF);
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|     EPD_2IN13_SendCommand(0x45);
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|     EPD_2IN13_SendData(y_start & 0xFF);
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|     EPD_2IN13_SendData((y_start >> 8) & 0xFF);
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|     EPD_2IN13_SendData(y_end & 0xFF);
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|     EPD_2IN13_SendData((y_end >> 8) & 0xFF);
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| }
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| 
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| static void EPD_2IN13_SetCursor(int x, int y)
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| {
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|     EPD_2IN13_SendCommand(0x4E);
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|     /* x point must be the multiple of 8 or the last 3 bits will be ignored */
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|     EPD_2IN13_SendData((x >> 3) & 0xFF);
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|     EPD_2IN13_SendCommand(0x4F);
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|     EPD_2IN13_SendData(y & 0xFF);
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|     EPD_2IN13_SendData((y >> 8) & 0xFF);
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| //    EPD_2IN13_ReadBusy();
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| }
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| 
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| /******************************************************************************
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| function :	Initialize the e-Paper register
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| parameter:
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| ******************************************************************************/
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| void EPD_2IN13_Init(UBYTE Mode)
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| {
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|     EPD_2IN13_Reset();
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| 
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|     EPD_2IN13_SendCommand(0x01); // DRIVER_OUTPUT_CONTROL
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|     EPD_2IN13_SendData((EPD_2IN13_HEIGHT - 1) & 0xFF);
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|     EPD_2IN13_SendData(((EPD_2IN13_HEIGHT - 1) >> 8) & 0xFF);
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|     EPD_2IN13_SendData(0x00);			// GD = 0; SM = 0; TB = 0;
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| 
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|     EPD_2IN13_SendCommand(0x0C);	// BOOSTER_SOFT_START_CONTROL
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|     EPD_2IN13_SendData(0xD7);
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|     EPD_2IN13_SendData(0xD6);
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|     EPD_2IN13_SendData(0x9D);
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| 
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|     EPD_2IN13_SendCommand(0x2C);	// WRITE_VCOM_REGISTER
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|     EPD_2IN13_SendData(0xA8);     // VCOM 7C
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| 
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|     EPD_2IN13_SendCommand(0x3A);	// SET_DUMMY_LINE_PERIOD
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|     EPD_2IN13_SendData(0x1A);			// 4 dummy lines per gate
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| 
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|     EPD_2IN13_SendCommand(0x3B);	// SET_GATE_TIME
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|     EPD_2IN13_SendData(0x08);			// 2us per line
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| 
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|     EPD_2IN13_SendCommand(0X3C);	// BORDER_WAVEFORM_CONTROL
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|     EPD_2IN13_SendData(0x03);
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| 
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|     EPD_2IN13_SendCommand(0X11);	// DATA_ENTRY_MODE_SETTING
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|     EPD_2IN13_SendData(0x03);			// X increment; Y increment
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| 
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|     //set the look-up table register
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|     EPD_2IN13_SendCommand(0x32);
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|     if(Mode == EPD_2IN13_FULL) {
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|         for (UWORD i = 0; i < 30; i++) {
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|             EPD_2IN13_SendData(EPD_2IN13_lut_full_update[i]);
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|         }
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|     } else if(Mode == EPD_2IN13_PART) {
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|         for (UWORD i = 0; i < 30; i++) {
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|             EPD_2IN13_SendData(EPD_2IN13_lut_partial_update[i]);
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|         }
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|     } else {
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|         EPD_Printf("error, the Mode is EPD_2IN13_FULL or EPD_2IN13_PART");
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|     }
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| }
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| /******************************************************************************
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| function :	Clear screen
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| parameter:
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| ******************************************************************************/
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| void EPD_2IN13_Clear(void)
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| {
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|     UWORD Width, Height;
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|     Width = (EPD_2IN13_WIDTH % 8 == 0)? (EPD_2IN13_WIDTH / 8 ): (EPD_2IN13_WIDTH / 8 + 1);
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|     Height = EPD_2IN13_HEIGHT;
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| 
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|     EPD_2IN13_SetWindows(0, 0, EPD_2IN13_WIDTH, EPD_2IN13_HEIGHT);
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|     for (UWORD j = 0; j < Height; j++) {
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|         EPD_2IN13_SetCursor(0, j);
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|         EPD_2IN13_SendCommand(0x24);
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|         for (UWORD i = 0; i < Width; i++) {
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|             EPD_2IN13_SendData(0Xff);
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|         }
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|     }
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|     EPD_2IN13_TurnOnDisplay();
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| }
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| 
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| /******************************************************************************
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| function :	Sends the image buffer in RAM to e-Paper and displays
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| parameter:
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| ******************************************************************************/
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| void EPD_2IN13_Display(UBYTE *Image)
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| {
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|     UWORD Width, Height;
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|     Width = (EPD_2IN13_WIDTH % 8 == 0)? (EPD_2IN13_WIDTH / 8 ): (EPD_2IN13_WIDTH / 8 + 1);
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|     Height = EPD_2IN13_HEIGHT;
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| 
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|     EPD_2IN13_SetWindows(0, 0, EPD_2IN13_WIDTH, EPD_2IN13_HEIGHT);
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|     for (UWORD j = 0; j < Height; j++) {
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|         EPD_2IN13_SetCursor(0, j);
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|         EPD_2IN13_SendCommand(0x24);
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|         for (UWORD i = 0; i < Width; i++) {
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|             EPD_2IN13_SendData(Image[i + j * Width]);
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|         }
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|     }
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|     EPD_2IN13_TurnOnDisplay();
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| }
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| 
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| /******************************************************************************
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| function :	Enter sleep mode
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| parameter:
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| ******************************************************************************/
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| void EPD_2IN13_Sleep(void)
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| {
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|     EPD_2IN13_SendCommand(0x10); //DEEP_SLEEP_MODE
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|     EPD_2IN13_SendData(0x01);
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| }
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| 
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| #endif
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