389 lines
11 KiB
C++
389 lines
11 KiB
C++
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/**
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* @filename : epd3in7.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 July 17 2020
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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 "epd3in7.h"
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#include "imagedata.h"
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static const UBYTE lut_4Gray_GC[] =
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{
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0x2A,0x06,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//1
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0x28,0x06,0x14,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//2
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0x20,0x06,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//3
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0x14,0x06,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//4
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//5
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0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x08,0x08,0x02,//6
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0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,//7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//8
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//9
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//10
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0x22,0x22,0x22,0x22,0x22
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};
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static const UBYTE lut_1Gray_GC[] =
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{
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0x2A,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//1
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0x05,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//2
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0x2A,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//3
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0x05,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//4
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//5
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0x00,0x02,0x03,0x0A,0x00,0x02,0x06,0x0A,0x05,0x00,//6
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//8
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//9
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//10
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0x22,0x22,0x22,0x22,0x22
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};
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static const UBYTE lut_1Gray_DU[] =
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{
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//1
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0x01,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x0A,0x55,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//3
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//5
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0x00,0x00,0x05,0x05,0x00,0x05,0x03,0x05,0x05,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//9
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x22,0x22,0x22,0x22,0x22
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};
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static const UBYTE lut_1Gray_A2[] =
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{
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //1
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0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //2
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0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //3
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //4
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //5
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0x00,0x00,0x03,0x05,0x00,0x00,0x00,0x00,0x00,0x00, //6
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //8
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //9
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //10
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0x22,0x22,0x22,0x22,0x22
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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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if (IfInit() != 0) {
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return -1;
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}
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Reset();
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SendCommand(0x12);
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DelayMs(300);
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SendCommand(0x46);
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SendData(0xF7);
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WaitUntilIdle();
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SendCommand(0x47);
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SendData(0xF7);
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WaitUntilIdle();
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SendCommand(0x01); // setting gaet number
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SendData(0xDF);
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SendData(0x01);
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SendData(0x00);
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SendCommand(0x03); // set gate voltage
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SendData(0x00);
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SendCommand(0x04); // set source voltage
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SendData(0x41);
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SendData(0xA8);
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SendData(0x32);
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SendCommand(0x11); // set data entry sequence
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SendData(0x03);
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SendCommand(0x3C); // set border
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SendData(0x00);
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SendCommand(0x0C); // set booster strength
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SendData(0xAE);
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SendData(0xC7);
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SendData(0xC3);
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SendData(0xC0);
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SendData(0xC0);
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SendCommand(0x18); // set internal sensor on
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SendData(0x80);
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SendCommand(0x2C); // set vcom value
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SendData(0x44);
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SendCommand(0x37); // set display option, these setting turn on previous function
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SendData(0x00);
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SendData(0xff);
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SendData(0xff);
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SendData(0xff);
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SendData(0xff);
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SendData(0x4f);
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SendData(0xff);
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SendData(0xff);
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SendData(0xff);
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SendData(0xff);
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SendCommand(0x44); // setting X direction start/end position of RAM
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SendData(0x00);
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SendData(0x00);
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SendData(0x17);
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SendData(0x01);
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SendCommand(0x45); // setting Y direction start/end position of RAM
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SendData(0x00);
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SendData(0x00);
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SendData(0xDF);
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SendData(0x01);
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SendCommand(0x22); // Display Update Control 2
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SendData(0xCF);
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return 0;
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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::WaitUntilIdle(void) {
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Serial.print("e-Paper busy \r\n ");
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UBYTE busy;
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do {
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busy = DigitalRead(busy_pin);
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} while(busy);
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DelayMs(200);
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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(20);
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DigitalWrite(reset_pin, LOW); //module reset
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DelayMs(2);
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DigitalWrite(reset_pin, HIGH);
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DelayMs(20);
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}
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/******************************************************************************
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function : Display
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******************************************************************************/
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void Epd::DisplayFrame(const UBYTE *Image, bool isBase) {
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UWORD i;
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UWORD IMAGE_COUNTER = width * height / 8;
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SendCommand(0x4E);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x4F);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x24);
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for (i = 0; i < IMAGE_COUNTER; i++) {
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SendData(pgm_read_byte(&Image[i]));
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}
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if(isBase) {
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SendCommand(0x26);
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for (i = 0; i < IMAGE_COUNTER; i++) {
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SendData(pgm_read_byte(&Image[i]));
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}
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}
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Load_LUT(1);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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/******************************************************************************
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function : Partial Display
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note:
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1. iwidth must be a multiple of 8
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2. The update will clear other parts of the image data
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******************************************************************************/
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void Epd::DisplayFrame_Partial(const UBYTE *Image, UWORD Xstart, UWORD Ystart, UWORD iwidth, UWORD iheight) {
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UWORD i, j;
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SendCommand(0x4E);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x4F);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x24);
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for(i=0; i<EPD_WIDTH; i++) {
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for(j=0; j<EPD_HEIGHT/8; j++) {
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if(i>=Ystart && i<Ystart+iheight && j>=Xstart/8 && j<(Xstart+iwidth)/8)
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SendData(Image[(j-Xstart/8) + (i-Ystart)*iwidth/8]);
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else
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SendData(0xff);
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}
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}
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Load_LUT(0);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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/******************************************************************************
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function : Sends part the image buffer in RAM to e-Paper and displays
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notes:
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1. Xstart must be a multiple of 8
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1. isGC: use GC mode to clear base-image
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******************************************************************************/
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void Epd::DisplayFrame_Part(const UBYTE *Image, UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend, bool isGC)
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{
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UWORD i, Width;
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Width = (Xend-Xstart)%8 == 0 ? (Xend-Xstart)/8 : (Xend-Xstart)/8+1;
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UWORD IMAGE_COUNTER = Width * (Yend-Ystart);
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Xend -= 1;
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Yend -= 1;
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SendCommand(0x44);
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SendData(Xstart & 0xff);
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SendData((Xstart>>8) & 0x03);
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SendData(Xend & 0xff);
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SendData((Xend>>8) & 0x03);
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SendCommand(0x45);
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SendData(Ystart & 0xff);
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SendData((Ystart>>8) & 0x03);
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SendData(Yend & 0xff);
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SendData((Yend>>8) & 0x03);
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SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
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SendData(Xstart & 0xFF);
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SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER
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SendData(Ystart & 0xFF);
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SendData((Ystart >> 8) & 0xFF);
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SendCommand(0x24);
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for (i = 0; i < IMAGE_COUNTER; i++)
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{
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SendData(Image[i]);
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}
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if(isGC)
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Load_LUT(1);
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else
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|
|
Load_LUT(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void Epd::TurnOnDisplay(void) {
|
||
|
|
SendCommand(0x20);
|
||
|
|
WaitUntilIdle();
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
function : set the look-up tables
|
||
|
|
parameter:
|
||
|
|
******************************************************************************/
|
||
|
|
void Epd::Load_LUT(UBYTE mode) {
|
||
|
|
UWORD i;
|
||
|
|
SendCommand(0x32);
|
||
|
|
for (i = 0; i < 105; i++) {
|
||
|
|
if(mode == 1)
|
||
|
|
SendData(lut_1Gray_GC[i]);
|
||
|
|
else if(mode == 0)
|
||
|
|
SendData(lut_1Gray_A2[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
function : Clear Screen
|
||
|
|
parameter:
|
||
|
|
mode: 0:just partial mode
|
||
|
|
1:clear all
|
||
|
|
******************************************************************************/
|
||
|
|
void Epd::Clear(UBYTE mode) {
|
||
|
|
UWORD i;
|
||
|
|
UWORD IMAGE_COUNTER = width * height / 8;
|
||
|
|
|
||
|
|
SendCommand(0x4E);
|
||
|
|
SendData(0x00);
|
||
|
|
SendData(0x00);
|
||
|
|
SendCommand(0x4F);
|
||
|
|
SendData(0x00);
|
||
|
|
SendData(0x00);
|
||
|
|
|
||
|
|
SendCommand(0x24);
|
||
|
|
for (i = 0; i < IMAGE_COUNTER; i++)
|
||
|
|
{
|
||
|
|
SendData(0xff);
|
||
|
|
}
|
||
|
|
if(mode)
|
||
|
|
Load_LUT(1);
|
||
|
|
else
|
||
|
|
Load_LUT(0);
|
||
|
|
SendCommand(0x20);
|
||
|
|
WaitUntilIdle();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @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
|
||
|
|
* You can use EPD_Reset() to awaken
|
||
|
|
*/
|
||
|
|
void Epd::Sleep(void) {
|
||
|
|
SendCommand(0X10); //deep sleep
|
||
|
|
SendData(0x03);
|
||
|
|
}
|
||
|
|
/* END OF FILE */
|