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/**
* @filename : epd4in2_V2.cpp
* @brief : Implements for Dual-color e-paper library
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare August 10 2017
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documnetation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdlib.h>
#include "epd4in2_V2.h"
Epd::~Epd() {
};
Epd::Epd() {
reset_pin = RST_PIN;
dc_pin = DC_PIN;
cs_pin = CS_PIN;
busy_pin = BUSY_PIN;
width = EPD_WIDTH;
height = EPD_HEIGHT;
};
int Epd::Init(void) {
/* this calls the peripheral hardware interface, see epdif */
if (IfInit() != 0) {
return -1;
}
/* EPD hardware init start */
Reset();
ReadBusy();
SendCommand(0x12);
ReadBusy();
SendCommand(0x21);
SendData(0x40);
SendData(0x00);
SendCommand(0x3C);
SendData(0x05);
SendCommand(0x11);
SendData(0x03);
SendCommand(0x44);
SendData(0x00);
SendData(0x31);
SendCommand(0x45);
SendData(0x00);
SendData(0x00);
SendData(0x2B);
SendData(0x01);
SendCommand(0x4E);
SendData(0x00);
SendCommand(0x4F);
SendData(0x00);
SendData(0x00);
ReadBusy();
/* EPD hardware init end */
return 0;
}
int Epd::Init_Fast(char mode) {
/* this calls the peripheral hardware interface, see epdif */
if (IfInit() != 0) {
return -1;
}
/* EPD hardware init start */
Reset();
ReadBusy();
SendCommand(0x12);
ReadBusy();
SendCommand(0x21);
SendData(0x40);
SendData(0x00);
SendCommand(0x3C);
SendData(0x05);
if(mode == Seconds_1_5S)
{
SendCommand(0x1A);
SendData(0x6E);
}
else
{
SendCommand(0x1A);
SendData(0x5A);
}
SendCommand(0x22);
SendData(0x91);
SendCommand(0x20);
ReadBusy();
SendCommand(0x11);
SendData(0x03);
SendCommand(0x44);
SendData(0x00);
SendData(0x31);
SendCommand(0x45);
SendData(0x00);
SendData(0x00);
SendData(0x2B);
SendData(0x01);
SendCommand(0x4E);
SendData(0x00);
SendCommand(0x4F);
SendData(0x00);
SendData(0x00);
ReadBusy();
/* EPD hardware init end */
return 0;
}
void Epd::Lut(void){
SendCommand(0x32);
for(int i=0; i<227; i++)
SendData(LUT_ALL[i]);
SendCommand(0x3F);
SendData(LUT_ALL[227]);
SendCommand(0x03);
SendData(LUT_ALL[228]);
SendCommand(0x04);
SendData(LUT_ALL[229]);
SendData(LUT_ALL[230]);
SendData(LUT_ALL[231]);
SendCommand(0x2c);
SendData(LUT_ALL[232]);
}
int Epd::Init_4Gray(void) {
/* this calls the peripheral hardware interface, see epdif */
if (IfInit() != 0) {
return -1;
}
/* EPD hardware init start */
Reset();
ReadBusy();
SendCommand(0x12);
ReadBusy();
SendCommand(0x21);
SendData(0x00);
SendData(0x00);
SendCommand(0x3C);
SendData(0x03);
SendCommand(0x0C);
SendData(0x8B);
SendData(0x9C);
SendData(0xA4);
SendData(0x0F);
Lut();
SendCommand(0x11);
SendData(0x03);
SendCommand(0x44);
SendData(0x00);
SendData(0x31);
SendCommand(0x45);
SendData(0x00);
SendData(0x00);
SendData(0x2B);
SendData(0x01);
SendCommand(0x4E);
SendData(0x00);
SendCommand(0x4F);
SendData(0x00);
SendData(0x00);
ReadBusy();
}
/**
* @brief: basic function for sending commands
*/
void Epd::SendCommand(unsigned char command) {
DigitalWrite(dc_pin, LOW);
SpiTransfer(command);
}
/**
* @brief: basic function for sending data
*/
void Epd::SendData(unsigned char data) {
DigitalWrite(dc_pin, HIGH);
SpiTransfer(data);
}
/**
* @brief: Wait until the busy_pin goes HIGH
*/
void Epd::ReadBusy(void) {
while(DigitalRead(busy_pin) == 1) { //1: busy, 0: idle
// Wait
}
}
/**
* @brief: module reset.
* often used to awaken the module in deep sleep,
* see Epd::Sleep();
*/
void Epd::Reset(void) {
DigitalWrite(reset_pin, HIGH);
DelayMs(100);
DigitalWrite(reset_pin, LOW);
DelayMs(2);
DigitalWrite(reset_pin, HIGH);
DelayMs(100);
}
/**
* @brief: Turn On Display
*/
void Epd::TurnOnDisplay(void)
{
SendCommand(0x22);
SendData(0xF7);
SendCommand(0x20);
ReadBusy();
}
void Epd::TurnOnDisplay_Fast(void)
{
SendCommand(0x22);
SendData(0xC7);
SendCommand(0x20);
ReadBusy();
}
void Epd::TurnOnDisplay_Partial(void)
{
SendCommand(0x22);
SendData(0xFF);
SendCommand(0x20);
ReadBusy();
}
void Epd::TurnOnDisplay_4Gray(void)
{
SendCommand(0x22);
SendData(0xCF);
SendCommand(0x20);
ReadBusy();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void Epd::Clear(void)
{
unsigned int Width, Height;
Width = (width % 8 == 0)? (width / 8 ): (width / 8 + 1);
Height = height;
SendCommand(0x24);
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(0xff);
}
}
SendCommand(0x26);
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(0xff);
}
}
TurnOnDisplay();
}
void Epd::Display(const unsigned char* Image)
{
unsigned int Width, Height;
Width = (width % 8 == 0)? (width / 8 ): (width / 8 + 1);
Height = height;
SendCommand(0x24);
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(pgm_read_byte(&Image[i + j * Width]));
}
}
SendCommand(0x26);
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(pgm_read_byte(&Image[i + j * Width]));
}
}
TurnOnDisplay();
}
void Epd::Display_Fast(const unsigned char* Image)
{
unsigned int Width, Height;
Width = (width % 8 == 0)? (width / 8 ): (width / 8 + 1);
Height = height;
SendCommand(0x24);
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(pgm_read_byte(&Image[i + j * Width]));
}
}
SendCommand(0x26);
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(pgm_read_byte(&Image[i + j * Width]));
}
}
TurnOnDisplay_Fast();
}
void Epd::Display_Base(const unsigned char* Image)
{
unsigned int Width, Height;
Width = (width % 8 == 0)? (width / 8 ): (width / 8 + 1);
Height = height;
SendCommand(0x24); //Write Black and White image to RAM
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(pgm_read_byte(&Image[i + j * Width]));
}
}
SendCommand(0x26); //Write Black and White image to RAM
for (unsigned int j = 0; j < Height; j++) {
for (unsigned int i = 0; i < Width; i++) {
SendData(pgm_read_byte(&Image[i + j * Width]));
}
}
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(0x21);
SendData(0x00);
SendData(0x00);
SendCommand(0x3C);
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(0x21);
SendData(0x00);
SendData(0x00);
SendCommand(0x3C);
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();
}
//Функция редактирована!!!
void Epd::Set_4GrayDisplay(const unsigned char *Image, int x, int y, int w, int l)
{
int i,j,k,m;
int z=0;
unsigned char temp1,temp2,temp3;
/****Color display description****
white gray1 gray2 black
0x10| 01 01 00 00
0x13| 01 00 01 00
*********************************/
//ЗАМЕНА!!!
/****Color display description****
white gray1 gray2 black
0x10| 01 00 01 00
0x13| 01 01 00 00
*********************************/
SendCommand(0x24);
z=0;
x= x/8*8;
for(m = 0; m<EPD_HEIGHT;m++)
for(i=0;i<EPD_WIDTH/8;i++)
{
if(i >= x/8 && i <(x+w)/8 && m >= y && m < y+l){
temp3=0;
for(j=0;j<2;j++)
{
temp1 = ~pgm_read_byte(&Image[z*2+j]);//ЗАМЕНА!!!
for(k=0;k<2;k++)
{
temp2 = temp1&0xC0 ;
if(temp2 == 0xC0)
temp3 |= 0x01;//white
else if(temp2 == 0x00)
temp3 |= 0x00; //black
else if(temp2 == 0x80)
temp3 |= 0x00; //gray1//ЗАМЕНА!!!
else //0x40
temp3 |= 0x01; //gray2//ЗАМЕНА!!!
temp3 <<= 1;
temp1 <<= 2;
temp2 = temp1&0xC0 ;
if(temp2 == 0xC0) //white
temp3 |= 0x01;
else if(temp2 == 0x00) //black
temp3 |= 0x00;
else if(temp2 == 0x80)
temp3 |= 0x00; //gray1//ЗАМЕНА!!!
else //0x40
temp3 |= 0x01; //gray2//ЗАМЕНА!!!
if(j!=1 || k!=1)
temp3 <<= 1;
temp1 <<= 2;
}
}
z++;
SendData(temp3);
}else{
SendData(0xff);
}
}
// new data
SendCommand(0x26);
z=0;
for(m = 0; m<EPD_HEIGHT;m++)
for(i=0;i<EPD_WIDTH/8;i++)
{
if(i >= x/8 && i <(x+w)/8 && m >= y && m < y+l){
temp3=0;
for(j=0;j<2;j++)
{
temp1 = ~pgm_read_byte(&Image[z*2+j]);//ЗАМЕНА!!!
for(k=0;k<2;k++)
{
temp2 = temp1&0xC0 ;
if(temp2 == 0xC0)
temp3 |= 0x01;//white
else if(temp2 == 0x00)
temp3 |= 0x00; //black
else if(temp2 == 0x80)
temp3 |= 0x01; //gray1//ЗАМЕНА!!!
else //0x40
temp3 |= 0x00; //gray2//ЗАМЕНА!!!
temp3 <<= 1;
temp1 <<= 2;
temp2 = temp1&0xC0 ;
if(temp2 == 0xC0) //white
temp3 |= 0x01;
else if(temp2 == 0x00) //black
temp3 |= 0x00;
else if(temp2 == 0x80)
temp3 |= 0x01; //gray1//
else //0x40
temp3 |= 0x00; //gray2//
if(j!=1 || k!=1)
temp3 <<= 1;
temp1 <<= 2;
}
}
z++;
SendData(temp3);
}else {
SendData(0xff);
}
}
TurnOnDisplay_4Gray();
}
void Epd::Sleep() {
SendCommand(0x10);
SendData(0x01);
DelayMs(100);
}
const unsigned char LUT_ALL[233]={
0x01, 0x0A, 0x1B, 0x0F, 0x03, 0x01, 0x01,
0x05, 0x0A, 0x01, 0x0A, 0x01, 0x01, 0x01,
0x05, 0x08, 0x03, 0x02, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x0A, 0x1B, 0x0F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x03, 0x82, 0x84, 0x01, 0x01,
0x01, 0x84, 0x84, 0x82, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x0A, 0x1B, 0x8F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x83, 0x82, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x8A, 0x1B, 0x8F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x83, 0x02, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x02, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x8A, 0x9B, 0x8F, 0x03, 0x01, 0x01,
0x05, 0x4A, 0x01, 0x8A, 0x01, 0x01, 0x01,
0x05, 0x48, 0x03, 0x42, 0x04, 0x01, 0x01,
0x01, 0x04, 0x04, 0x42, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x07, 0x17, 0x41, 0xA8,
0x32, 0x30,
};
/* END OF FILE */