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waveshareteam-e-Paper/Arduino/epd2in13_V3/epd2in13_V3.cpp

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/*****************************************************************************
* | File : epd2in13_V3.cpp
* | Author : Waveshare team
* | Function : 2.13inch e-paper V3
* | Info :
*----------------
* | This version: V1.0
* | Date : 2021-11-01
* | Info :
#
# 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 "epd2in13_V3.h"
const unsigned char lut_full_update[]= {
0x80, 0x4A, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x40, 0x4A, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x80, 0x4A, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x40, 0x4A, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xF, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xF, 0x0, 0x0, 0xF, 0x0, 0x0, 0x2,
0xF, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x0, 0x0, 0x0,
0x22, 0x17, 0x41, 0x0, 0x32, 0x36
};
const unsigned char lut_partial_update[]= {
0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x14,0x0,0x0,0x0,0x0,0x0,0x0,
0x1,0x0,0x0,0x0,0x0,0x0,0x0,
0x1,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0,
0x22,0x17,0x41,0x00,0x32,0x36,
};
Epd::~Epd()
{
};
/******************************************************************************
function : Pin definition
parameter:
******************************************************************************/
Epd::Epd()
{
reset_pin = RST_PIN;
dc_pin = DC_PIN;
cs_pin = CS_PIN;
busy_pin = BUSY_PIN;
width = EPD_WIDTH;
height = EPD_HEIGHT;
bufwidth = 128/8; //16
bufheight = 63;
};
/******************************************************************************
function : send command
parameter:
command : Command register
******************************************************************************/
void Epd::SendCommand(unsigned char command)
{
DigitalWrite(dc_pin, LOW);
SpiTransfer(command);
}
/******************************************************************************
function : send data
parameter:
Data : Write data
******************************************************************************/
void Epd::SendData(unsigned char data)
{
DigitalWrite(dc_pin, HIGH);
SpiTransfer(data);
}
/******************************************************************************
function : Wait until the busy_pin goes LOW
parameter:
******************************************************************************/
void Epd::WaitUntilIdle(void)
{
while(1) { //LOW: idle, HIGH: busy
if(DigitalRead(busy_pin) == 0)
break;
DelayMs(10);
}
}
/******************************************************************************
function : Setting the display window
parameter:
Xstart : X-axis starting position
Ystart : Y-axis starting position
Xend : End position of X-axis
Yend : End position of Y-axis
******************************************************************************/
void Epd::SetWindows(unsigned char Xstart, unsigned char Ystart, unsigned char Xend, unsigned char Yend)
{
SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
SendData((Xstart>>3) & 0xFF);
SendData((Xend>>3) & 0xFF);
SendCommand(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION
SendData(Ystart & 0xFF);
SendData((Ystart >> 8) & 0xFF);
SendData(Yend & 0xFF);
SendData((Yend >> 8) & 0xFF);
}
/******************************************************************************
function : Set Cursor
parameter:
Xstart : X-axis starting position
Ystart : Y-axis starting position
******************************************************************************/
void Epd::SetCursor(unsigned char Xstart, unsigned char Ystart)
{
SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
SendData(Xstart & 0xFF);
SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER
SendData(Ystart & 0xFF);
SendData((Ystart >> 8) & 0xFF);
}
/******************************************************************************
function : Send lut data and configuration
parameter:
lut : lut data
******************************************************************************/
void Epd::Lut(unsigned char *lut)
{
unsigned char count;
SendCommand(0x32);
for(count = 0; count < 153; count++) {
SendData(lut[count]);
}
SendCommand(0x3f);
SendData(*(lut+153));
SendCommand(0x03); // gate voltage
SendData(*(lut+154));
SendCommand(0x04); // source voltage
SendData(*(lut+155)); // VSH
SendData(*(lut+156)); // VSH2
SendData(*(lut+157)); // VSL
SendCommand(0x2c); // VCOM
SendData(*(lut+158));
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
Mode : Mode selection
******************************************************************************/
int Epd::Init(char Mode)
{
/* this calls the peripheral hardware interface, see epdif */
if (IfInit() != 0) {
return -1;
}
Reset();
int count;
if(Mode == FULL) {
WaitUntilIdle();
SendCommand(0x12); // soft reset
WaitUntilIdle();
SendCommand(0x01); //Driver output control
SendData(0xF9);
SendData(0x00);
SendData(0x00);
SendCommand(0x11); //data entry mode
SendData(0x03);
SetWindows(0, 0, EPD_WIDTH-1, EPD_HEIGHT-1);
SetCursor(0, 0);
SendCommand(0x3C); //BorderWavefrom
SendData(0x05);
SendCommand(0x21); // Display update control
SendData(0x00);
SendData(0x80);
SendCommand(0x18); //Read built-in temperature sensor
SendData(0x80);
WaitUntilIdle();
Lut(lut_full_update);
} else if(Mode == PART) {
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(1);
DigitalWrite(reset_pin, HIGH);
Lut(lut_partial_update);
SendCommand(0x37);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendData(0x40);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendCommand(0x3C); //BorderWavefrom
SendData(0x80);
SendCommand(0x22); //Display Update Sequence Option
SendData(0xC0); // Enable clock and Enable analog
SendCommand(0x20); //Activate Display Update Sequence
WaitUntilIdle();
SetWindows(0, 0, EPD_WIDTH-1, EPD_HEIGHT-1);
SetCursor(0, 0);
} else {
return -1;
}
return 0;
}
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
void Epd::Reset(void)
{
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(2);
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
this->count = 0;
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void Epd::Clear(void)
{
int w, h;
w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
h = EPD_HEIGHT;
SendCommand(0x24);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(0xff);
}
}
//DISPLAY REFRESH
SendCommand(0x22);
SendData(0xC7);
SendCommand(0x20);
WaitUntilIdle();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
frame_buffer : Image data
******************************************************************************/
void Epd::Display(const unsigned char* frame_buffer)
{
int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
int h = EPD_HEIGHT;
if (frame_buffer != NULL) {
SendCommand(0x24);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(pgm_read_byte(&frame_buffer[i + j * w]));
}
}
}
//DISPLAY REFRESH
SendCommand(0x22);
SendData(0xC7);
SendCommand(0x20);
WaitUntilIdle();
}
void Epd::Display1(const unsigned char* frame_buffer) {
if(this->count == 0){
SendCommand(0x24);
this->count++;
}else if(this->count > 0 && this->count < 4 ){
this->count++;
}
for(int i = 0; i < this->bufwidth * this->bufheight; i++){
SendData(frame_buffer[i]);
}
if(this->count == 4){
SendCommand(0x22);
SendData(0xC7);
SendCommand(0x20);
WaitUntilIdle();
this->count = 0;
}
}
/******************************************************************************
function : Refresh a base image
parameter:
frame_buffer : Image data
******************************************************************************/
void Epd::DisplayPartBaseImage(const unsigned char* frame_buffer)
{
int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
int h = EPD_HEIGHT;
if (frame_buffer != NULL) {
SendCommand(0x24);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(pgm_read_byte(&frame_buffer[i + j * w]));
}
}
SendCommand(0x26);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(pgm_read_byte(&frame_buffer[i + j * w]));
}
}
}
//DISPLAY REFRESH
SendCommand(0x22);
SendData(0xC7);
SendCommand(0x20);
WaitUntilIdle();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and partial refresh
parameter:
frame_buffer : Image data
******************************************************************************/
void Epd::DisplayPart(const unsigned char* frame_buffer)
{
int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
int h = EPD_HEIGHT;
if (frame_buffer != NULL) {
SendCommand(0x24);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(pgm_read_byte(&frame_buffer[i + j * w]));
}
}
}
//DISPLAY REFRESH
SendCommand(0x22);
SendData(0x0f);
SendCommand(0x20);
WaitUntilIdle();
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void Epd::ClearPart(void)
{
int w, h;
w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
h = EPD_HEIGHT;
SendCommand(0x24);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(0xff);
}
}
//DISPLAY REFRESH
SendCommand(0x22);
SendData(0x0f);
SendCommand(0x20);
WaitUntilIdle();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void Epd::Sleep()
{
SendCommand(0x10); //enter deep sleep
SendData(0x01);
DelayMs(200);
DigitalWrite(reset_pin, LOW);
}
/* END OF FILE */
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