586 lines
16 KiB
C++
586 lines
16 KiB
C++
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/**
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* @filename : epd2in7_V2.cpp
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* @brief : Implements for e-paper library
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* @author : Waveshare
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*
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* Copyright (C) Waveshare September 20 2022
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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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#include <stdlib.h>
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#include "epd2in7_V2.h"
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static const unsigned char LUT_DATA_4Gray[159] =
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{
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0x40, 0x48, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x8, 0x48, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x2, 0x48, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x20, 0x48, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0xA, 0x19, 0x0, 0x3, 0x8, 0x0, 0x0,
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0x14, 0x1, 0x0, 0x14, 0x1, 0x0, 0x3,
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0xA, 0x3, 0x0, 0x8, 0x19, 0x0, 0x0,
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0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x0, 0x0, 0x0,
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0x22, 0x17, 0x41, 0x0, 0x32, 0x1C
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};
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Epd::~Epd() {
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};
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Epd::Epd() {
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reset_pin = RST_PIN;
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dc_pin = DC_PIN;
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cs_pin = CS_PIN;
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busy_pin = BUSY_PIN;
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WIDTH = EPD_WIDTH;
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HEIGHT = EPD_HEIGHT;
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};
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int Epd::Init(void) {
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/* this calls the peripheral hardware interface, see epdif */
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if (IfInit() != 0) {
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return -1;
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}
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Reset();
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ReadBusy();
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SendCommand(0x12); //SWRESET
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ReadBusy();
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SendCommand(0x45); //set Ram-Y address start/end position
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SendData(0x00);
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SendData(0x00);
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SendData(0x07); //0x0107-->(263+1)=264
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SendData(0x01);
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SendCommand(0x4F); // set RAM y address count to 0;
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x11); // data entry mode
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SendData(0x03);
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return 0;
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}
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int Epd::Init_Fast(void) {
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/* this calls the peripheral hardware interface, see epdif */
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if (IfInit() != 0) {
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return -1;
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}
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Reset();
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ReadBusy();
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SendCommand(0x12); //SWRESET
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ReadBusy();
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SendCommand(0x18); //Read built-in temperature sensor
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SendData(0x80);
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SendCommand(0x22); // Load temperature value
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SendData(0xB1);
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SendCommand(0x20);
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ReadBusy();
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SendCommand(0x1A); // Write to temperature register
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SendData(0x64);
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SendData(0x00);
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SendCommand(0x45); //set Ram-Y address start/end position
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SendData(0x00);
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SendData(0x00);
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SendData(0x07); //0x0107-->(263+1)=264
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SendData(0x01);
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SendCommand(0x4F); // set RAM y address count to 0;
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x11); // data entry mode
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SendData(0x03);
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SendCommand(0x22); // Load temperature value
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SendData(0x91);
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SendCommand(0x20);
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ReadBusy();
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return 0;
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}
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void Epd::Init_4Gray(void)
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{
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Reset();
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ReadBusy();
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SendCommand(0x12); // soft reset
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ReadBusy();
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SendCommand(0x74); //set analog block control
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SendData(0x54);
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SendCommand(0x7E); //set digital block control
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SendData(0x3B);
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SendCommand(0x01); //Driver output control
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SendData(0x07);
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SendData(0x01);
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SendData(0x00);
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SendCommand(0x11); //data entry mode
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SendData(0x03);
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SendCommand(0x44); //set Ram-X address start/end position
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SendData(0x00);
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SendData(0x15); //0x15-->(21+1)*8=176
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SendCommand(0x45); //set Ram-Y address start/end position
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SendData(0x00);
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SendData(0x00);
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SendData(0x07);//0x0107-->(263+1)=264
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SendData(0x01);
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SendCommand(0x3C); //BorderWavefrom
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SendData(0x00);
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SendCommand(0x2C); //VCOM Voltage
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SendData(LUT_DATA_4Gray[158]); //0x1C
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SendCommand(0x3F); //EOPQ
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SendData(LUT_DATA_4Gray[153]);
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SendCommand(0x03); //VGH
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SendData(LUT_DATA_4Gray[154]);
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SendCommand(0x04); //
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SendData(LUT_DATA_4Gray[155]); //VSH1
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SendData(LUT_DATA_4Gray[156]); //VSH2
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SendData(LUT_DATA_4Gray[157]); //VSL
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Lut(); //LUT
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SendCommand(0x4E); // set RAM x address count to 0;
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SendData(0x00);
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SendCommand(0x4F); // set RAM y address count to 0X199;
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SendData(0x00);
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SendData(0x00);
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ReadBusy();
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}
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/**
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* @brief: basic function for sending commands
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*/
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void Epd::SendCommand(unsigned char command) {
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DigitalWrite(dc_pin, LOW);
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SpiTransfer(command);
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}
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/**
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* @brief: basic function for sending data
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*/
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void Epd::SendData(unsigned char data) {
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DigitalWrite(dc_pin, HIGH);
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SpiTransfer(data);
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}
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/**
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* @brief: Wait until the busy_pin goes HIGH
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*/
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void Epd::ReadBusy(void) {
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Serial.print("e-Paper busy\r\n");
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while(DigitalRead(busy_pin) == 1) { //1: busy, 0: idle
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DelayMs(100);
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}
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Serial.print("e-Paper busy release\r\n");
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}
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/**
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* @brief: module reset.
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* often used to awaken the module in deep sleep,
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* see Epd::Sleep();
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*/
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void Epd::Reset(void) {
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DigitalWrite(reset_pin, HIGH);
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DelayMs(200);
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DigitalWrite(reset_pin, LOW);
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DelayMs(2);
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DigitalWrite(reset_pin, HIGH);
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DelayMs(200);
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}
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/**
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* @brief: set the look-up tables
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*/
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void Epd::Lut(void) {
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unsigned int count;
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SendCommand(0x32); //vcom
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for(count = 0; count < 153; count++) {
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SendData(LUT_DATA_4Gray[count]);
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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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void Epd::TurnOnDisplay(void)
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{
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SendCommand(0x22); //Display Update Control
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SendData(0xF7);
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SendCommand(0x20); //Activate Display Update Sequence
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ReadBusy();
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}
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void Epd::TurnOnDisplay_Fast(void)
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{
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SendCommand(0x22); //Display Update Control
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SendData(0xC7);
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SendCommand(0x20); //Activate Display Update Sequence
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ReadBusy();
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}
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void Epd::TurnOnDisplay_Partial(void)
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{
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SendCommand(0x22);
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SendData(0xFF);
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SendCommand(0x20);
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ReadBusy();
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}
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void Epd::TurnOnDisplay_4GRAY(void)
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{
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SendCommand(0x22);
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SendData(0xC7);
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SendCommand(0x20);
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ReadBusy();
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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::Clear(void)
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{
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unsigned int Width, Height;
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Width = (WIDTH % 8 == 0)? (WIDTH / 8 ): (WIDTH / 8 + 1);
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Height = HEIGHT;
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SendCommand(0x24);
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for (unsigned int j = 0; j < Height; j++) {
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for (unsigned int i = 0; i < Width; i++) {
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SendData(0XFF);
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}
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}
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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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******************************************************************************/
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void Epd::Display(const unsigned char* Image)
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{
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unsigned int Width, Height;
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Width = (WIDTH % 8 == 0)? (WIDTH / 8 ): (WIDTH / 8 + 1);
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Height = HEIGHT;
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SendCommand(0x24);
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for (unsigned int j = 0; j < Height; j++) {
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for (unsigned int i = 0; i < Width; i++) {
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SendData(pgm_read_byte(&Image[i + j * Width]));
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}
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}
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TurnOnDisplay();
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}
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void Epd::Display_Fast(const unsigned char* Image)
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{
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unsigned int Width, Height;
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Width = (WIDTH % 8 == 0)? (WIDTH / 8 ): (WIDTH / 8 + 1);
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Height = HEIGHT;
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SendCommand(0x24);
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for (unsigned int j = 0; j < Height; j++) {
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for (unsigned int i = 0; i < Width; i++) {
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SendData(pgm_read_byte(&Image[i + j * Width]));
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}
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}
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TurnOnDisplay_Fast();
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}
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void Epd::Display_Base(const unsigned char* Image)
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{
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unsigned int Width, Height;
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Width = (WIDTH % 8 == 0)? (WIDTH / 8 ): (WIDTH / 8 + 1);
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Height = HEIGHT;
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SendCommand(0x24); //Write Black and White image to RAM
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for (unsigned int j = 0; j < Height; j++) {
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for (unsigned int i = 0; i < Width; i++) {
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SendData(pgm_read_byte(&Image[i + j * Width]));
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}
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}
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SendCommand(0x26); //Write Black and White image to RAM
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for (unsigned int j = 0; j < Height; j++) {
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for (unsigned int i = 0; i < Width; i++) {
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SendData(pgm_read_byte(&Image[i + j * Width]));
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}
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}
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TurnOnDisplay();
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}
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void Epd::Display_Base_color(unsigned char color)
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{
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unsigned int Width, Height;
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Width = (WIDTH % 8 == 0)? (WIDTH / 8 ): (WIDTH / 8 + 1);
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Height = HEIGHT;
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SendCommand(0x24); //Write Black and White image to RAM
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for (unsigned int j = 0; j < Height; j++) {
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for (unsigned int i = 0; i < Width; i++) {
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SendData(color);
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}
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}
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SendCommand(0x26); //Write Black and White image to RAM
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||
|
|
for (unsigned int j = 0; j < Height; j++) {
|
||
|
|
for (unsigned int i = 0; i < Width; i++) {
|
||
|
|
SendData(color);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// TurnOnDisplay();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Epd::Display_Partial(unsigned char* Image, unsigned int Xstart, unsigned int Ystart, unsigned int Xend, unsigned int Yend)
|
||
|
|
{
|
||
|
|
|
||
|
|
unsigned int i, Width;
|
||
|
|
unsigned int IMAGE_COUNTER;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
Width = Xend - Xstart;
|
||
|
|
IMAGE_COUNTER = Width * (Yend-Ystart);
|
||
|
|
Serial.println(IMAGE_COUNTER);
|
||
|
|
|
||
|
|
Xend -= 1;
|
||
|
|
Yend -= 1;
|
||
|
|
//Reset
|
||
|
|
Reset();
|
||
|
|
|
||
|
|
SendCommand(0x3C); //BorderWavefrom
|
||
|
|
SendData(0x80);
|
||
|
|
//
|
||
|
|
SendCommand(0x44); // set RAM x address start/end, in page 35
|
||
|
|
SendData(Xstart & 0xff); // RAM x address start at 00h;
|
||
|
|
SendData(Xend & 0xff); // RAM x address end at 0fh(15+1)*8->128
|
||
|
|
SendCommand(0x45); // set RAM y address start/end, in page 35
|
||
|
|
SendData(Ystart & 0xff); // RAM y address start at 0127h;
|
||
|
|
SendData((Ystart>>8) & 0x01); // RAM y address start at 0127h;
|
||
|
|
SendData(Yend & 0xff); // RAM y address end at 00h;
|
||
|
|
SendData((Yend>>8) & 0x01);
|
||
|
|
|
||
|
|
SendCommand(0x4E); // set RAM x address count to 0;
|
||
|
|
SendData(Xstart & 0xff);
|
||
|
|
SendCommand(0x4F); // set RAM y address count to 0X127;
|
||
|
|
SendData(Ystart & 0xff);
|
||
|
|
SendData((Ystart>>8) & 0x01);
|
||
|
|
|
||
|
|
|
||
|
|
SendCommand(0x24); //Write Black and White image to RAM
|
||
|
|
for (i = 0; i < IMAGE_COUNTER; i++) {
|
||
|
|
SendData(Image[i]);
|
||
|
|
}
|
||
|
|
TurnOnDisplay_Partial();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Epd::Display_Partial_Not_refresh(unsigned char* Image, unsigned int Xstart, unsigned int Ystart, unsigned int Xend, unsigned int Yend)
|
||
|
|
{
|
||
|
|
|
||
|
|
unsigned int i, Width;
|
||
|
|
unsigned int IMAGE_COUNTER;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
Width = Xend - Xstart;
|
||
|
|
IMAGE_COUNTER = Width * (Yend-Ystart);
|
||
|
|
Serial.println(IMAGE_COUNTER);
|
||
|
|
|
||
|
|
Xend -= 1;
|
||
|
|
Yend -= 1;
|
||
|
|
//Reset
|
||
|
|
Reset();
|
||
|
|
|
||
|
|
SendCommand(0x3C); //BorderWavefrom
|
||
|
|
SendData(0x80);
|
||
|
|
//
|
||
|
|
SendCommand(0x44); // set RAM x address start/end, in page 35
|
||
|
|
SendData(Xstart & 0xff); // RAM x address start at 00h;
|
||
|
|
SendData(Xend & 0xff); // RAM x address end at 0fh(15+1)*8->128
|
||
|
|
SendCommand(0x45); // set RAM y address start/end, in page 35
|
||
|
|
SendData(Ystart & 0xff); // RAM y address start at 0127h;
|
||
|
|
SendData((Ystart>>8) & 0x01); // RAM y address start at 0127h;
|
||
|
|
SendData(Yend & 0xff); // RAM y address end at 00h;
|
||
|
|
SendData((Yend>>8) & 0x01);
|
||
|
|
|
||
|
|
SendCommand(0x4E); // set RAM x address count to 0;
|
||
|
|
SendData(Xstart & 0xff);
|
||
|
|
SendCommand(0x4F); // set RAM y address count to 0X127;
|
||
|
|
SendData(Ystart & 0xff);
|
||
|
|
SendData((Ystart>>8) & 0x01);
|
||
|
|
|
||
|
|
|
||
|
|
SendCommand(0x24); //Write Black and White image to RAM
|
||
|
|
for (i = 0; i < IMAGE_COUNTER; i++) {
|
||
|
|
SendData(Image[i]);
|
||
|
|
}
|
||
|
|
// TurnOnDisplay_Partial();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Epd::Display4Gray(const unsigned char *Image)
|
||
|
|
{
|
||
|
|
int i,j,k;
|
||
|
|
unsigned char temp1,temp2,temp3;
|
||
|
|
|
||
|
|
SendCommand(0x24);
|
||
|
|
for(i=0;i<5808;i++) //5808*4 46464
|
||
|
|
{
|
||
|
|
temp3=0;
|
||
|
|
for(j=0;j<2;j++)
|
||
|
|
{
|
||
|
|
temp1 = pgm_read_byte(&Image[i*2+j]);
|
||
|
|
for(k=0;k<2;k++)
|
||
|
|
{
|
||
|
|
temp2 = temp1&0xC0 ;
|
||
|
|
if(temp2 == 0xC0)
|
||
|
|
temp3 |= 0x00;//white
|
||
|
|
else if(temp2 == 0x00)
|
||
|
|
temp3 |= 0x01; //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 |= 0x00;
|
||
|
|
else if(temp2 == 0x00) //black
|
||
|
|
temp3 |= 0x01;
|
||
|
|
else if(temp2 == 0x80)
|
||
|
|
temp3 |= 0x01; //gray1
|
||
|
|
else //0x40
|
||
|
|
temp3 |= 0x00; //gray2
|
||
|
|
if(j!=1 || k!=1)
|
||
|
|
temp3 <<= 1;
|
||
|
|
|
||
|
|
temp1 <<= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
SendData(temp3);
|
||
|
|
}
|
||
|
|
// new data
|
||
|
|
SendCommand(0x26);
|
||
|
|
for(i=0;i<5808;i++) //5808*4 46464
|
||
|
|
{
|
||
|
|
temp3=0;
|
||
|
|
for(j=0;j<2;j++)
|
||
|
|
{
|
||
|
|
temp1 = pgm_read_byte(&Image[i*2+j]);
|
||
|
|
for(k=0;k<2;k++)
|
||
|
|
{
|
||
|
|
temp2 = temp1&0xC0 ;
|
||
|
|
if(temp2 == 0xC0)
|
||
|
|
temp3 |= 0x00;//white
|
||
|
|
else if(temp2 == 0x00)
|
||
|
|
temp3 |= 0x01; //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 |= 0x00;
|
||
|
|
else if(temp2 == 0x00) //black
|
||
|
|
temp3 |= 0x01;
|
||
|
|
else if(temp2 == 0x80)
|
||
|
|
temp3 |= 0x00; //gray1
|
||
|
|
else //0x40
|
||
|
|
temp3 |= 0x01; //gray2
|
||
|
|
if(j!=1 || k!=1)
|
||
|
|
temp3 <<= 1;
|
||
|
|
|
||
|
|
temp1 <<= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
SendData(temp3);
|
||
|
|
}
|
||
|
|
|
||
|
|
TurnOnDisplay_4GRAY();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief: After this command is transmitted, the chip would enter the deep-sleep mode to save power.
|
||
|
|
* The deep sleep mode would return to standby by hardware reset. The only one parameter is a
|
||
|
|
* check code, the command would be executed if check code = 0xA5.
|
||
|
|
* You can use Epd::Reset() to awaken and use Epd::Init() to initialize.
|
||
|
|
*/
|
||
|
|
void Epd::Sleep() {
|
||
|
|
SendCommand(0X10);
|
||
|
|
SendData(0x01);
|
||
|
|
}
|