452 lines
11 KiB
C++
452 lines
11 KiB
C++
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/**
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* @filename : epd4in26.cpp
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* @brief : Implements for e-paper library
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* @author : Yehui from Waveshare
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*
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* Copyright (C) Waveshare 23-12-20
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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 "epd4in26.h"
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const unsigned char LUT_DATA_4Gray[112] = //112bytes
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{
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0x80, 0x48, 0x4A, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x0A, 0x48, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x88, 0x48, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xA8, 0x48, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x07, 0x1E, 0x1C, 0x02, 0x00,
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0x05, 0x01, 0x05, 0x01, 0x02,
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0x08, 0x01, 0x01, 0x04, 0x04,
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0x00, 0x02, 0x00, 0x02, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01,
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0x22, 0x22, 0x22, 0x22, 0x22,
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0x17, 0x41, 0xA8, 0x32, 0x30,
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0x00, 0x00,
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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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DelayMs(100);
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ReadBusy();
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SendCommand(0x12); //SWRESET
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ReadBusy();
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SendCommand(0x18); // use the internal temperature sensor
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SendData(0x80);
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SendCommand(0x0C); //set soft start
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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(0x80);
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SendCommand(0x01); // drive output control
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SendData((HEIGHT-1)%256); // Y
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SendData((HEIGHT-1)/256); // Y
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SendData(0x02);
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SendCommand(0x3C); // Border Border setting
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SendData(0x01);
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SendCommand(0x11); // data entry mode
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SendData(0x01); // X-mode x+ y-
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SetWindows(0, HEIGHT-1, WIDTH-1, 0);
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SetCursor(0, 0);
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ReadBusy();
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return 0;
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}
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int Epd::Init_Fast(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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DelayMs(100);
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ReadBusy();
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SendCommand(0x12); //SWRESET
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ReadBusy();
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SendCommand(0x18); // use the internal temperature sensor
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SendData(0x80);
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SendCommand(0x0C); //set soft start
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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(0x80);
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SendCommand(0x01); // drive output control
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SendData((HEIGHT-1)%256); // Y
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SendData((HEIGHT-1)/256); // Y
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SendData(0x02);
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SendCommand(0x3C); // Border Border setting
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SendData(0x01);
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SendCommand(0x11); // data entry mode
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SendData(0x01); // X-mode x+ y-
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SetWindows(0, HEIGHT-1, WIDTH-1, 0);
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SetCursor(0, 0);
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ReadBusy();
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//TEMP (1.5s)
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SendCommand(0x1A);
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SendData(0x5A);
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SendCommand(0x22);
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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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int Epd::Init_4GRAY(void) {
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unsigned int count;
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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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DelayMs(100);
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ReadBusy();
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SendCommand(0x12); //SWRESET
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ReadBusy();
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SendCommand(0x18); // use the internal temperature sensor
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SendData(0x80);
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SendCommand(0x0C); //set soft start
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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(0x80);
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SendCommand(0x01); // drive output control
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SendData((WIDTH-1)%256); // Y
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SendData((WIDTH-1)/256); // Y
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SendData(0x02);
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SendCommand(0x3C); // Border Border setting
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SendData(0x01);
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SendCommand(0x11); // data entry mode
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SendData(0x01); // X-mode x+ y-
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SetWindows(0, HEIGHT-1, WIDTH-1, 0);
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SetCursor(0, 0);
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ReadBusy();
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SendCommand(0x32); //vcom
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for(count = 0; count < 105 ; count++) {
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SendData(LUT_DATA_4Gray[count]);
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}
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SendCommand(0x03); //VGH
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SendData(LUT_DATA_4Gray[105]);
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SendCommand(0x04); //
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SendData(LUT_DATA_4Gray[106]); //VSH1
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SendData(LUT_DATA_4Gray[107]); //VSH2
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SendData(LUT_DATA_4Gray[108]); //VSL
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SendCommand(0x2C); //VCOM Voltage
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SendData(LUT_DATA_4Gray[109]); //0x1C
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return 0;
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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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void Epd::SetWindows(unsigned long Xstart, unsigned long Ystart, unsigned long Xend, unsigned long Yend)
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{
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SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
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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); // SET_RAM_Y_ADDRESS_START_END_POSITION
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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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}
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/******************************************************************************
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function : Set Cursor
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parameter:
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******************************************************************************/
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void Epd::SetCursor(unsigned long Xstart, unsigned long Ystart)
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{
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SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
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SendData(Xstart & 0xFF);
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SendData((Xstart>>8) & 0x03);
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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) & 0x03);
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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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unsigned char busy;
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Serial.print("e-Paper Busy\r\n ");
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while(1)
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{ //=1 BUSY
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if(DigitalRead(busy_pin)==0)
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break;
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DelayMs(20);
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}
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Serial.print("e-Paper Busy Release\r\n ");
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DelayMs(20);
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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(4);
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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 : 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_Part(void)
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{
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SendCommand(0x22); //Display Update Control
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SendData(0xFF);
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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_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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void Epd::Display(const unsigned char* frame_buffer) {
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SendCommand(0x24);
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for (unsigned long j = 0; j < HEIGHT; j++) {
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for (unsigned long i = 0; i < WIDTH/8; i++) {
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SendData(frame_buffer[i + j * WIDTH/8]);
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}
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}
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TurnOnDisplay();
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}
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void Epd::Displaypart(const unsigned char* pbuffer, unsigned long xStart, unsigned long yStart,unsigned long Picture_Width,unsigned long Picture_Height) {
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SendCommand(0x24);
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// xStart = xStart/8;
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// xStart = xStart*8;
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for (unsigned long j = 0; j < HEIGHT; j++) {
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for (unsigned long i = 0; i < WIDTH/8; i++) {
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if( (j>=yStart) && (j<yStart+Picture_Height) && (i*8>=xStart) && (i*8<xStart+Picture_Width)){
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SendData(pgm_read_byte(&(pbuffer[i-xStart/8 + (Picture_Width)/8*(j-yStart)])) );
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// SendData(0xff);
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}else {
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SendData(0xFF);
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}
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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(const unsigned char* frame_buffer) {
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SendCommand(0x24);
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for (unsigned long j = 0; j < HEIGHT; j++) {
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for (unsigned long i = 0; i < WIDTH/8; i++) {
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SendData(frame_buffer[i + j * WIDTH/8]);
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}
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}
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SendCommand(0x26);
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for (unsigned long j = 0; j < HEIGHT; j++) {
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for (unsigned long i = 0; i < WIDTH/8; i++) {
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SendData(frame_buffer[i + j * WIDTH/8]);
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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* frame_buffer) {
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SendCommand(0x24);
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for (unsigned long j = 0; j < HEIGHT; j++) {
|
||
|
|
for (unsigned long i = 0; i < WIDTH/8; i++) {
|
||
|
|
SendData(frame_buffer[i + j * WIDTH/8]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
TurnOnDisplay_Fast();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Epd::Display_Part(unsigned char *Image, unsigned long x, unsigned long y, unsigned long w, unsigned long l)
|
||
|
|
{
|
||
|
|
unsigned long i;
|
||
|
|
unsigned long height = l;
|
||
|
|
unsigned long width = (w % 8 == 0)? (w / 8 ): (w / 8 + 1);
|
||
|
|
|
||
|
|
Reset();
|
||
|
|
|
||
|
|
SendCommand(0x18); // use the internal temperature sensor
|
||
|
|
SendData(0x80);
|
||
|
|
|
||
|
|
SendCommand(0x3C); // Border Border setting
|
||
|
|
SendData(0x80);
|
||
|
|
|
||
|
|
SetWindows(x, y, x+w-1, y+l-1);
|
||
|
|
|
||
|
|
SetCursor(x, y);
|
||
|
|
|
||
|
|
SendCommand(0x24); //write RAM for black(0)/white (1)
|
||
|
|
for (unsigned long j = 0; j < height; j++) {
|
||
|
|
for (unsigned long i = 0; i < width; i++) {
|
||
|
|
SendData(Image[i + j * width]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
TurnOnDisplay_Part();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @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
|
||
|
|
*/
|
||
|
|
void Epd::Sleep(void) {
|
||
|
|
SendCommand(0x10);
|
||
|
|
SendData(0x03);
|
||
|
|
DelayMs(100);
|
||
|
|
ReadBusy();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Epd::Clear(void) {
|
||
|
|
|
||
|
|
SendCommand(0x24);
|
||
|
|
for(unsigned long i=0; i<HEIGHT*WIDTH; i++) {
|
||
|
|
SendData(0xff);
|
||
|
|
}
|
||
|
|
// SendCommand(0x26);
|
||
|
|
// for(unsigned long i=0; i<HEIGHT*WIDTH; i++) {
|
||
|
|
// SendData(0xff);
|
||
|
|
// }
|
||
|
|
TurnOnDisplay();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* END OF FILE */
|
||
|
|
|
||
|
|
|