405 lines
12 KiB
C++
405 lines
12 KiB
C++
/*****************************************************************************
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* | File : EPD_1in02.c
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* | Author : Waveshare team
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* | Function : Electronic paper driver
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2019-03-12
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* | Info :
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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_1in02d.h"
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/**
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* full screen update LUT
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**/
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const unsigned char lut_w1[] =
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{
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0x60 ,0x5A ,0x5A ,0x00 ,0x00 ,0x01 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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};
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const unsigned char lut_b1[] =
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{
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0x90 ,0x5A ,0x5A ,0x00 ,0x00 ,0x01 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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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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* partial screen update LUT
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**/
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const unsigned char lut_w[] =
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{
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0x60 ,0x01 ,0x01 ,0x00 ,0x00 ,0x01 ,
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0x80 ,0x0f ,0x00 ,0x00 ,0x00 ,0x01 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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};
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const unsigned char lut_b[] =
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{
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0x90 ,0x01 ,0x01 ,0x00 ,0x00 ,0x01 ,
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0x40 ,0x0f ,0x00 ,0x00 ,0x00 ,0x01 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,
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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_Reset(void)
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{
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DEV_Digital_Write(EPD_RST_PIN, 0);// Module reset
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DEV_Delay_ms(20);
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_Delay_ms(20);
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}
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/******************************************************************************
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function : send command
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parameter:
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command : Command register
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******************************************************************************/
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static void EPD_SendCommand(UBYTE command)
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{
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_Digital_Write(EPD_DC_PIN, 0);// command write
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DEV_SPI_WriteByte(command);
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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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static void EPD_SendData(UBYTE Data)
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{
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_Digital_Write(EPD_DC_PIN, 1); // command write
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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 : LUT download
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******************************************************************************/
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void EPD_SetFulltReg(void)
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{
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unsigned int count;
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EPD_SendCommand(0x23);
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for(count=0;count<42;count++)
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{EPD_SendData(lut_w1[count]);}
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EPD_SendCommand(0x24);
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for(count=0;count<42;count++)
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{EPD_SendData(lut_b1[count]);}
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}
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/******************************************************************************
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function : LUT download
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******************************************************************************/
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void EPD_SetPartReg(void)
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{
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unsigned int count;
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EPD_SendCommand(0x23);
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for(count=0;count<42;count++){
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EPD_SendData(lut_w[count]);
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}
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EPD_SendCommand(0x24);
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for(count=0;count<42;count++){
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EPD_SendData(lut_b[count]);
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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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******************************************************************************/
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void EPD_WaitUntilIdle(void)
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{
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unsigned char busy;
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do
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{
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EPD_SendCommand(0x71);
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busy = DEV_Digital_Read(EPD_BUSY_PIN);
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busy =!(busy & 0x01);
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}
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while(busy);
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DEV_Delay_ms(200);
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}
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/******************************************************************************
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function : Turn On Display
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******************************************************************************/
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void EPD_TurnOnDisplay(void)
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{
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EPD_SendCommand(0x04); //power on
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EPD_WaitUntilIdle();
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EPD_SendCommand(0x12); //Start refreshing the screen
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EPD_WaitUntilIdle();
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EPD_SendCommand(0x02);
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EPD_WaitUntilIdle(); //power off
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}
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/******************************************************************************
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function :Initialize the e-Paper register
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******************************************************************************/
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UBYTE EPD_Init(void)
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{
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EPD_Reset();
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EPD_SendCommand(0xD2);
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EPD_SendData(0x3F);
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EPD_SendCommand(0x00);
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EPD_SendData (0x6F); //from outside
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EPD_SendCommand(0x01); //power setting
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EPD_SendData (0x03);
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EPD_SendData (0x00);
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EPD_SendData (0x2b);
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EPD_SendData (0x2b);
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EPD_SendCommand(0x06); //Configuring the charge pump
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EPD_SendData(0x3f);
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EPD_SendCommand(0x2A); //Setting XON and the options of LUT
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EPD_SendData(0x00);
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EPD_SendData(0x00);
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EPD_SendCommand(0x30); //Set the clock frequency
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EPD_SendData(0x13); //50Hz
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EPD_SendCommand(0x50); //Set VCOM and data output interval
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EPD_SendData(0x57);
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EPD_SendCommand(0x60); //Set The non-overlapping period of Gate and Source.
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EPD_SendData(0x22);
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EPD_SendCommand(0x61); //resolution setting
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EPD_SendData (0x50); //source 128
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EPD_SendData (0x80);
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EPD_SendCommand(0x82); //sets VCOM_DC value
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EPD_SendData(0x12); //-1v
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EPD_SendCommand(0xe3);//Set POWER SAVING
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EPD_SendData(0x33);
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EPD_SetFulltReg();
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EPD_SendCommand(0x04);//Set POWER SAVING
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EPD_WaitUntilIdle();
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return 0;
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}
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/******************************************************************************
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function :Partial refresh initialization e-paper
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******************************************************************************/
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void EPD_Part_Init(void)
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{
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EPD_Reset();
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EPD_SendCommand(0xD2);
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EPD_SendData(0x3F);
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EPD_SendCommand(0x00);
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EPD_SendData (0x6F); //from outside
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EPD_SendCommand(0x01); //power setting
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EPD_SendData (0x03);
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EPD_SendData (0x00);
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EPD_SendData (0x2b);
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EPD_SendData (0x2b);
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EPD_SendCommand(0x06); //Configuring the charge pump
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EPD_SendData(0x3f);
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EPD_SendCommand(0x2A); //Setting XON and the options of LUT
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EPD_SendData(0x00);
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EPD_SendData(0x00);
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EPD_SendCommand(0x30); //Set the clock frequency
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EPD_SendData(0x17);
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EPD_SendCommand(0x50); //Set VCOM and data output interval
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EPD_SendData(0xf2);
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EPD_SendCommand(0x60); //Set The non-overlapping period of Gate and Source.
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EPD_SendData(0x22);
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EPD_SendCommand(0x82); //Set VCOM_DC value
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EPD_SendData(0x12);//-1v
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EPD_SendCommand(0xe3);//Set POWER SAVING
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EPD_SendData(0x33);
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EPD_SetPartReg();
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EPD_SendCommand(0x04);//Set POWER SAVING
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EPD_WaitUntilIdle();
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}
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/******************************************************************************
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function : Clear screen
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******************************************************************************/
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void EPD_Clear(void)
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{
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unsigned int i;
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EPD_SendCommand(0x10);
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for(i=0;i<1280;i++){
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EPD_SendData(0X00);
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}
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EPD_SendCommand(0x13); //Transfer new data
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for(i=0;i<1280;i++){
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EPD_SendData(0xff);
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}
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EPD_TurnOnDisplay();
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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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Image :Displayed data
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******************************************************************************/
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void EPD_Display_Image(UBYTE *Image)
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{
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UWORD Width;
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Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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//EPD_Init();
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EPD_SendCommand(0x10);
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for (UWORD j = 0; j < EPD_HEIGHT; j++) {
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for (UWORD i = 0; i < Width; i++) {
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EPD_SendData(0xff);
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}
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}
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EPD_SendCommand(0x13);
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for (UWORD j = 0; j < EPD_HEIGHT; j++) {
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for (UWORD i = 0; i < Width; i++) {
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EPD_SendData(~pgm_read_byte(&Image[i + j * Width]));
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}
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}
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EPD_TurnOnDisplay();
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}
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void EPD_Display(UBYTE *Image)
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{
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UWORD Width;
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Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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//EPD_Init();
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EPD_SendCommand(0x10);
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for (UWORD j = 0; j < EPD_HEIGHT; j++) {
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for (UWORD i = 0; i < Width; i++) {
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EPD_SendData(0xff);
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}
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}
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EPD_SendCommand(0x13);
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for (UWORD j = 0; j < EPD_HEIGHT; j++) {
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for (UWORD i = 0; i < Width; i++) {
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EPD_SendData(~(Image[i + j * Width]));
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}
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}
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EPD_TurnOnDisplay();
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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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old_Image: Last displayed data
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Image2 : New data
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******************************************************************************/
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void EPD_DisplayPartial(UBYTE *old_Image, UBYTE *Image)
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{
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/* Set partial Windows */
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EPD_SendCommand(0x91); //This command makes the display enter partial mode
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EPD_SendCommand(0x90); //resolution setting
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EPD_SendData(0); //x-start
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EPD_SendData(79); //x-end
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EPD_SendData(0);
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EPD_SendData(127); //y-end
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EPD_SendData(0x00);
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UWORD Width;
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Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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/* send data */
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EPD_SendCommand(0x10);
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for (UWORD j = 0; j < EPD_HEIGHT; j++) {
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for (UWORD i = 0; i < Width; i++) {
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EPD_SendData(old_Image[i + j * Width]);
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}
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}
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EPD_SendCommand(0x13);
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for (UWORD j = 0; j < EPD_HEIGHT; j++) {
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for (UWORD i = 0; i < Width; i++) {
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EPD_SendData(Image[i + j * Width]);
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}
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}
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/* Set partial refresh */
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EPD_TurnOnDisplay();
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}
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/******************************************************************************
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function : Enter sleep mode
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******************************************************************************/
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void EPD_Sleep(void)
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{
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EPD_SendCommand(0X02); //power off
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EPD_WaitUntilIdle();
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EPD_SendCommand(0X07); //deep sleep
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EPD_SendData(0xA5);
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DEV_Digital_Write(EPD_RST_PIN, 0);// Module reset
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}
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