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Initial commit
This commit is contained in:
Shuanglei Tao
621
EPD/EPD_4in2_V2.c
Normal file
621
EPD/EPD_4in2_V2.c
Normal file
@@ -0,0 +1,621 @@
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/*****************************************************************************
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* | File : EPD_4in2_V2.h
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* | Author : Waveshare team
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* | Function : 4.2inch e-paper V2
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2023-09-12
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* | Info :
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* -----------------------------------------------------------------------------
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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_4in2_V2.h"
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const unsigned char LUT_ALL[233]={
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0x01, 0x0A, 0x1B, 0x0F, 0x03, 0x01, 0x01,
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0x05, 0x0A, 0x01, 0x0A, 0x01, 0x01, 0x01,
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0x05, 0x08, 0x03, 0x02, 0x04, 0x01, 0x01,
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0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x0A, 0x1B, 0x0F, 0x03, 0x01, 0x01,
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0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
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0x05, 0x48, 0x03, 0x82, 0x84, 0x01, 0x01,
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0x01, 0x84, 0x84, 0x82, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x0A, 0x1B, 0x8F, 0x03, 0x01, 0x01,
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0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
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0x05, 0x48, 0x83, 0x82, 0x04, 0x01, 0x01,
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0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x8A, 0x1B, 0x8F, 0x03, 0x01, 0x01,
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0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
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0x05, 0x48, 0x83, 0x02, 0x04, 0x01, 0x01,
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0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x8A, 0x9B, 0x8F, 0x03, 0x01, 0x01,
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0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
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0x05, 0x48, 0x03, 0x42, 0x04, 0x01, 0x01,
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0x01, 0x04, 0x04, 0x42, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x02, 0x00, 0x00, 0x07, 0x17, 0x41, 0xA8,
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0x32, 0x30,
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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_4IN2_V2_Reset(void)
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{
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_Delay_ms(100);
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DEV_Digital_Write(EPD_RST_PIN, 0);
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DEV_Delay_ms(2);
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_Delay_ms(100);
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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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void EPD_4IN2_V2_SendCommand(UBYTE Reg)
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{
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_SPI_WriteByte(Reg);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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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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void EPD_4IN2_V2_SendData(UBYTE Data)
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{
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DEV_Digital_Write(EPD_DC_PIN, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_SPI_WriteByte(Data);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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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_4IN2_V2_ReadBusy(void)
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{
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while(DEV_Digital_Read(EPD_BUSY_PIN) == 1) { //LOW: idle, HIGH: busy
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DEV_Delay_ms(10);
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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_4IN2_V2_TurnOnDisplay(void)
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{
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EPD_4IN2_V2_SendCommand(0x22);
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EPD_4IN2_V2_SendData(0xF7);
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EPD_4IN2_V2_SendCommand(0x20);
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EPD_4IN2_V2_ReadBusy();
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}
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static void EPD_4IN2_V2_TurnOnDisplay_Fast(void)
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{
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EPD_4IN2_V2_SendCommand(0x22);
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EPD_4IN2_V2_SendData(0xC7);
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EPD_4IN2_V2_SendCommand(0x20);
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EPD_4IN2_V2_ReadBusy();
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}
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static void EPD_4IN2_V2_TurnOnDisplay_Partial(void)
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{
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EPD_4IN2_V2_SendCommand(0x22);
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EPD_4IN2_V2_SendData(0xFF);
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EPD_4IN2_V2_SendCommand(0x20);
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EPD_4IN2_V2_ReadBusy();
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}
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static void EPD_4IN2_V2_TurnOnDisplay_4Gray(void)
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{
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EPD_4IN2_V2_SendCommand(0x22);
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EPD_4IN2_V2_SendData(0xCF);
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EPD_4IN2_V2_SendCommand(0x20);
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EPD_4IN2_V2_ReadBusy();
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}
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/******************************************************************************
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function : Setting the display window
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parameter:
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******************************************************************************/
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static void EPD_4IN2_V2_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
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{
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EPD_4IN2_V2_SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
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EPD_4IN2_V2_SendData((Xstart>>3) & 0xFF);
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EPD_4IN2_V2_SendData((Xend>>3) & 0xFF);
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EPD_4IN2_V2_SendCommand(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION
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EPD_4IN2_V2_SendData(Ystart & 0xFF);
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EPD_4IN2_V2_SendData((Ystart >> 8) & 0xFF);
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EPD_4IN2_V2_SendData(Yend & 0xFF);
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EPD_4IN2_V2_SendData((Yend >> 8) & 0xFF);
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}
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/******************************************************************************
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function : Set Cursor
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parameter:
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******************************************************************************/
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static void EPD_4IN2_V2_SetCursor(UWORD Xstart, UWORD Ystart)
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{
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EPD_4IN2_V2_SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
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EPD_4IN2_V2_SendData(Xstart & 0xFF);
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EPD_4IN2_V2_SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER
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EPD_4IN2_V2_SendData(Ystart & 0xFF);
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EPD_4IN2_V2_SendData((Ystart >> 8) & 0xFF);
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}
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//LUT download
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static void EPD_4IN2_V2_4Gray_lut(void)
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{
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unsigned char i;
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//WS byte 0~152, the content of VS[nX-LUTm], TP[nX], RP[n], SR[nXY], FR[n] and XON[nXY]
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EPD_4IN2_V2_SendCommand(0x32);
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for(i=0;i<227;i++)
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{
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EPD_4IN2_V2_SendData(LUT_ALL[i]);
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}
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//WS byte 153, the content of Option for LUT end
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EPD_4IN2_V2_SendCommand(0x3F);
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EPD_4IN2_V2_SendData(LUT_ALL[i++]);
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//WS byte 154, the content of gate leve
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EPD_4IN2_V2_SendCommand(0x03);
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EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VGH
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//WS byte 155~157, the content of source level
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EPD_4IN2_V2_SendCommand(0x04);
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EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VSH1
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EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VSH2
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EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VSL
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//WS byte 158, the content of VCOM level
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EPD_4IN2_V2_SendCommand(0x2c);
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EPD_4IN2_V2_SendData(LUT_ALL[i++]);//VCOM
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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_4IN2_V2_Init(void)
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{
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EPD_4IN2_V2_Reset();
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EPD_4IN2_V2_ReadBusy();
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EPD_4IN2_V2_SendCommand(0x12); // soft reset
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EPD_4IN2_V2_ReadBusy();
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// EPD_4IN2_V2_SendCommand(0x01); //Driver output control
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// EPD_4IN2_V2_SendData((EPD_4IN2_V2_HEIGHT-1)%256);
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// EPD_4IN2_V2_SendData((EPD_4IN2_V2_HEIGHT-1)/256);
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// EPD_4IN2_V2_SendData(0x00);
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EPD_4IN2_V2_SendCommand(0x21); // Display update control
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EPD_4IN2_V2_SendData(0x40);
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EPD_4IN2_V2_SendData(0x00);
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EPD_4IN2_V2_SendCommand(0x3C); //BorderWavefrom
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EPD_4IN2_V2_SendData(0x05);
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EPD_4IN2_V2_SendCommand(0x11); // data entry mode
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EPD_4IN2_V2_SendData(0x03); // X-mode
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EPD_4IN2_V2_SetWindows(0, 0, EPD_4IN2_V2_WIDTH-1, EPD_4IN2_V2_HEIGHT-1);
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EPD_4IN2_V2_SetCursor(0, 0);
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EPD_4IN2_V2_ReadBusy();
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}
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/******************************************************************************
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function : Initialize Fast the e-Paper register
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parameter:
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******************************************************************************/
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void EPD_4IN2_V2_Init_Fast(UBYTE Mode)
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{
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EPD_4IN2_V2_Reset();
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EPD_4IN2_V2_ReadBusy();
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EPD_4IN2_V2_SendCommand(0x12); // soft reset
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EPD_4IN2_V2_ReadBusy();
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EPD_4IN2_V2_SendCommand(0x21);
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EPD_4IN2_V2_SendData(0x40);
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EPD_4IN2_V2_SendData(0x00);
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EPD_4IN2_V2_SendCommand(0x3C);
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EPD_4IN2_V2_SendData(0x05);
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if(Mode == Seconds_1_5S)
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{
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//1.5s
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EPD_4IN2_V2_SendCommand(0x1A); // Write to temperature register
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EPD_4IN2_V2_SendData(0x6E);
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}
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else if(Mode == Seconds_1S)
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{
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//1s
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EPD_4IN2_V2_SendCommand(0x1A); // Write to temperature register
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EPD_4IN2_V2_SendData(0x5A);
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}
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EPD_4IN2_V2_SendCommand(0x22); // Load temperature value
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EPD_4IN2_V2_SendData(0x91);
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EPD_4IN2_V2_SendCommand(0x20);
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EPD_4IN2_V2_ReadBusy();
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EPD_4IN2_V2_SendCommand(0x11); // data entry mode
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EPD_4IN2_V2_SendData(0x03); // X-mode
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EPD_4IN2_V2_SetWindows(0, 0, EPD_4IN2_V2_WIDTH-1, EPD_4IN2_V2_HEIGHT-1);
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EPD_4IN2_V2_SetCursor(0, 0);
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EPD_4IN2_V2_ReadBusy();
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}
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void EPD_4IN2_V2_Init_4Gray(void)
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{
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EPD_4IN2_V2_Reset();
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EPD_4IN2_V2_SendCommand(0x12); //SWRESET
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EPD_4IN2_V2_ReadBusy();
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EPD_4IN2_V2_SendCommand(0x21);
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EPD_4IN2_V2_SendData(0x00);
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EPD_4IN2_V2_SendData(0x00);
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EPD_4IN2_V2_SendCommand(0x3C);
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EPD_4IN2_V2_SendData(0x03);
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EPD_4IN2_V2_SendCommand(0x0C); //BTST
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EPD_4IN2_V2_SendData(0x8B);//8B
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EPD_4IN2_V2_SendData(0x9C);//9C
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EPD_4IN2_V2_SendData(0xA4);//96 A4
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EPD_4IN2_V2_SendData(0x0F);//0F
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// EPD_4IN2_V2_SendCommand(0x01); // 驱动输出控制 drive output control
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// EPD_4IN2_V2_SendData(0x2B); // Y 的低字节
|
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// EPD_4IN2_V2_SendData(0x01); // Y 的高字节
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// EPD_4IN2_V2_SendData(0x00);
|
||||
|
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EPD_4IN2_V2_4Gray_lut(); //LUT
|
||||
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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)
|
||||
{
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UWORD Width, Height;
|
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Width = (EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 8 ): (EPD_4IN2_V2_WIDTH / 8 + 1);
|
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Height = EPD_4IN2_V2_HEIGHT;
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||||
|
||||
EPD_4IN2_V2_SendCommand(0x24);
|
||||
for (UWORD j = 0; j < Height; j++) {
|
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for (UWORD i = 0; i < Width; i++) {
|
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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_Half(UBYTE *Image, UBYTE Region)
|
||||
{
|
||||
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;
|
||||
|
||||
if(Region == 1){
|
||||
EPD_4IN2_V2_SendCommand(0x24);
|
||||
for (UWORD j = 0; j < Height/2; 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/2; j++) {
|
||||
for (UWORD i = 0; i < Width; i++) {
|
||||
EPD_4IN2_V2_SendData(Image[i + j * Width]);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if(Region == 2){
|
||||
EPD_4IN2_V2_SendCommand(0x24);
|
||||
for (UWORD j = 0; j < Height/2; 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/2; 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 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();
|
||||
}
|
||||
|
||||
void EPD_4IN2_V2_UpdateDisplay(void)
|
||||
{
|
||||
EPD_4IN2_V2_TurnOnDisplay();
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
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);
|
||||
}
|
||||
Reference in New Issue
Block a user