174 lines
4.7 KiB
C++
174 lines
4.7 KiB
C++
/**
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* @filename : epd2in9b_V3.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 Dec 3 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 "epd2in9b_V3.h"
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#include "imagedata.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 / 8;
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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(0x04);//power on
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WaitUntilIdle();//waiting for the electronic paper IC to release the idle signal
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SendCommand(0x00);//panel setting
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SendData(0x0f);//default data
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SendData(0x89);//128x296,Temperature sensor, boost and other related timing settings
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SendCommand(0x61);//Display resolution setting
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SendData (0x80);
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SendData (0x01);
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SendData (0x28);
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SendCommand(0X50);//VCOM AND DATA INTERVAL SETTING
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SendData(0x77);//WBmode:VBDF 17|D7 VBDW 97 VBDB 57
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//WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
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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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unsigned char busy;
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Serial.print("e-Paper busy \r\n ");
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do
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{
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// SendCommand(0x71);
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busy = DigitalRead(busy_pin);
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busy =!(busy & 0x01);
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}
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while(busy);
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Serial.print("e-Paper busy release \r\n ");
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DelayMs(200);
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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); //module reset
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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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void Epd::DisplayFrame(const UBYTE *blackimage, const UBYTE *ryimage) {
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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(&blackimage[i + (j*width)]));
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}
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}
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SendCommand(0x92);
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SendCommand(0x13);
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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(&ryimage[i + (j*width)]));
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}
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}
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SendCommand(0x92);
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SendCommand(0x12);
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WaitUntilIdle();
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}
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void Epd::Clear(void) {
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//send black data
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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(0xff);
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}
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}
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//send red data
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SendCommand(0x13);
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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(0xff);
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}
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}
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SendCommand(0x12);
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WaitUntilIdle();
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}
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/**
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* @brief: After this command is transmitted, the chip would enter the
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* deep-sleep mode to save power.
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* The deep sleep mode would return to standby by hardware reset.
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* The only one parameter is a check code, the command would be
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* You can use EPD_Reset() to awaken
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*/
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void Epd::Sleep(void) {
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SendCommand(0x02); // POWER_OFF
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WaitUntilIdle();
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SendCommand(0x07); // DEEP_SLEEP
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SendData(0xA5); // check code
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}
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/* END OF FILE */
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