Added 2.36inch e-Paper (G) program and some fixes.
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267
Arduino/epd2in36g/epd2in36g.cpp
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267
Arduino/epd2in36g/epd2in36g.cpp
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/**
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* @filename : epd2in36g.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 2022/08/17
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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 "epd2in36g.h"
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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() {
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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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SendCommand(0x66);
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SendData(0x49);
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SendData(0x55);
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SendData(0x13);
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SendData(0x5D);
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SendCommand(0x66);
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SendData(0x49);
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SendData(0x55);
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SendCommand(0xB0);
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SendData(0x03);//1 boost 20211113
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SendCommand(0x00);
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SendData(0x4F);
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SendData(0x69);
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SendCommand(0x03);
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SendData(0x00);
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SendCommand(0xF0);
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SendData(0xF6);
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SendData(0x0D);
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SendData(0x00);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x06); //20211113
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SendData(0xCF);
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SendData(0xDE);
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SendData(0x0F);
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SendCommand(0x41);
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SendData(0x00);
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SendCommand(0x50);
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SendData(0x30);
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SendCommand(0x60);
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SendData(0x0C);
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SendData(0x05);
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SendCommand(0x61);
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SendData(0xA8);
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SendData(0x01);
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SendData(0x28);
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SendCommand(0x84);
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SendData(0x01);
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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 LOW
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*/
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void Epd::ReadBusyH(void) {
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Serial.print("e-Paper busy H\r\n ");
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while(DigitalRead(busy_pin) == LOW) { //LOW: busy, HIGH: idle
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DelayMs(5);
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}
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Serial.print("e-Paper busy release H\r\n ");
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}
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void Epd::ReadBusyL(void) {
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Serial.print("e-Paper busy L\r\n ");
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while(DigitalRead(busy_pin) == HIGH) { //LOW: idle, HIGH: busy
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DelayMs(5);
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}
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Serial.print("e-Paper busy release L\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 : 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(0x12); // DISPLAY_REFRESH
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SendData(0x00);
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ReadBusyH();
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SendCommand(0x02); // POWER_OFF
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SendData(0X00);
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ReadBusyH();
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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(UBYTE color)
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{
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UWORD Width, Height;
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Width = (WIDTH % 4 == 0)? (WIDTH / 4 ): (WIDTH / 4 + 1);
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Height = HEIGHT;
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SendCommand(0x68); // POWER_OFF
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SendData(0X01);
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SendCommand(0x04);
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ReadBusyH();
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SendCommand(0x10);
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for (UWORD j = 0; j < Height; j++) {
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for (UWORD i = 0; i < Width; i++) {
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SendData((color<<6) | (color<<4) | (color<<2) | color);
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}
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}
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SendCommand(0x68); // POWER_OFF
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SendData(0X00);
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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(UBYTE *Image)
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{
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UWORD Width, Height;
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Width = (WIDTH % 4 == 0)? (WIDTH / 4 ): (WIDTH / 4 + 1);
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Height = HEIGHT;
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SendCommand(0x68); // POWER_OFF
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SendData(0X01);
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SendCommand(0x04);
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ReadBusyH();
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SendCommand(0x10);
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for (UWORD j = 0; j < Height; j++) {
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for (UWORD 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(0x68); // POWER_OFF
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SendData(0X00);
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TurnOnDisplay();
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}
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void Epd::Display_part(UBYTE *Image, UWORD xstart, UWORD ystart, UWORD image_width, UWORD image_height)
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{
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UWORD Width, Height, i, j;
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Width = (WIDTH % 4 == 0)? (WIDTH / 4 ): (WIDTH / 4 + 1);
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Height = HEIGHT;
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SendCommand(0x68); // POWER_OFF
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SendData(0X01);
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SendCommand(0x04);
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ReadBusyH();
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SendCommand(0x10);
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for(i=0; i<Height; i++) {
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for(j=0; j< Width; j++) {
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if(i<image_height+ystart && i>=ystart && j<(image_width+xstart)/4 && j>=xstart/4) {
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SendData(pgm_read_byte(&Image[(j-xstart/4) + (image_width/4*(i-ystart))]));
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}
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else {
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SendData(0x55);
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}
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}
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}
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SendCommand(0x68); // POWER_OFF
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SendData(0X00);
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TurnOnDisplay();
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}
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/******************************************************************************
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function : Enter sleep mode
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parameter:
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******************************************************************************/
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void Epd::Sleep(void)
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{
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SendCommand(0x02); // POWER_OFF
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SendData(0X00);
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SendCommand(0x07); // DEEP_SLEEP
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SendData(0XA5);
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}
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/* END OF FILE */
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