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e-paper-display/bcm2835-1.71/e-Paper/Arduino/epd2in13_V2/epd2in13_V2.cpp

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/*****************************************************************************
* | File : epd2in13_V2.cpp
* | Author : Waveshare team
* | Function : 2.13inch e-paper V2
* | Info :
*----------------
* | This version: V1.0
* | Date : 2019-06-24
* | 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_V2.h"
const unsigned char lut_full_update[]= {
0x80,0x60,0x40,0x00,0x00,0x00,0x00, //LUT0: BB: VS 0 ~7
0x10,0x60,0x20,0x00,0x00,0x00,0x00, //LUT1: BW: VS 0 ~7
0x80,0x60,0x40,0x00,0x00,0x00,0x00, //LUT2: WB: VS 0 ~7
0x10,0x60,0x20,0x00,0x00,0x00,0x00, //LUT3: WW: VS 0 ~7
0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT4: VCOM: VS 0 ~7
0x03,0x03,0x00,0x00,0x02, // TP0 A~D RP0
0x09,0x09,0x00,0x00,0x02, // TP1 A~D RP1
0x03,0x03,0x00,0x00,0x02, // TP2 A~D RP2
0x00,0x00,0x00,0x00,0x00, // TP3 A~D RP3
0x00,0x00,0x00,0x00,0x00, // TP4 A~D RP4
0x00,0x00,0x00,0x00,0x00, // TP5 A~D RP5
0x00,0x00,0x00,0x00,0x00, // TP6 A~D RP6
0x15,0x41,0xA8,0x32,0x30,0x0A,
};
const unsigned char lut_partial_update[]= { //20 bytes
0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT0: BB: VS 0 ~7
0x80,0x00,0x00,0x00,0x00,0x00,0x00, //LUT1: BW: VS 0 ~7
0x40,0x00,0x00,0x00,0x00,0x00,0x00, //LUT2: WB: VS 0 ~7
0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT3: WW: VS 0 ~7
0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT4: VCOM: VS 0 ~7
0x0A,0x00,0x00,0x00,0x00, // TP0 A~D RP0
0x00,0x00,0x00,0x00,0x00, // TP1 A~D RP1
0x00,0x00,0x00,0x00,0x00, // TP2 A~D RP2
0x00,0x00,0x00,0x00,0x00, // TP3 A~D RP3
0x00,0x00,0x00,0x00,0x00, // TP4 A~D RP4
0x00,0x00,0x00,0x00,0x00, // TP5 A~D RP5
0x00,0x00,0x00,0x00,0x00, // TP6 A~D RP6
0x15,0x41,0xA8,0x32,0x30,0x0A,
};
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;
};
/**
* @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::WaitUntilIdle(void)
{
while(1) { //LOW: idle, HIGH: busy
if(DigitalRead(busy_pin) == 0)
break;
DelayMs(100);
}
}
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(0x74); //set analog block control
SendData(0x54);
SendCommand(0x7E); //set digital block control
SendData(0x3B);
SendCommand(0x01); //Driver output control
SendData(0xF9);
SendData(0x00);
SendData(0x00);
SendCommand(0x11); //data entry mode
SendData(0x01);
SendCommand(0x44); //set Ram-X address start/end position
SendData(0x00);
SendData(0x0F); //0x0C-->(15+1)*8=128
SendCommand(0x45); //set Ram-Y address start/end position
SendData(0xF9); //0xF9-->(249+1)=250
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendCommand(0x3C); //BorderWavefrom
SendData(0x03);
SendCommand(0x2C); //VCOM Voltage
SendData(0x55); //
SendCommand(0x03);
SendData(lut_full_update[70]);
SendCommand(0x04); //
SendData(lut_full_update[71]);
SendData(lut_full_update[72]);
SendData(lut_full_update[73]);
SendCommand(0x3A); //Dummy Line
SendData(lut_full_update[74]);
SendCommand(0x3B); //Gate time
SendData(lut_full_update[75]);
SendCommand(0x32);
for(count = 0; count < 70; count++) {
SendData(lut_full_update[count]);
}
SendCommand(0x4E); // set RAM x address count to 0;
SendData(0x00);
SendCommand(0x4F); // set RAM y address count to 0X127;
SendData(0xF9);
SendData(0x00);
WaitUntilIdle();
} else if(Mode == PART) {
SendCommand(0x2C); //VCOM Voltage
SendData(0x26);
WaitUntilIdle();
SendCommand(0x32);
for(count = 0; count < 70; count++) {
SendData(lut_partial_update[count]);
}
SendCommand(0x37);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendData(0x00);
SendData(0x40);
SendData(0x00);
SendData(0x00);
SendCommand(0x22);
SendData(0xC0);
SendCommand(0x20);
WaitUntilIdle();
SendCommand(0x3C); //BorderWavefrom
SendData(0x01);
} else {
return -1;
}
return 0;
}
/**
* @brief: module reset.
* often used to awaken the module in deep sleep,
* see Epd::Sleep();
*/
void Epd::Reset(void)
{
DigitalWrite(reset_pin, HIGH);
DelayMs(200);
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(10);
DigitalWrite(reset_pin, HIGH);
DelayMs(200);
}
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();
}
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::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();
}
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(0x0C);
SendCommand(0x20);
WaitUntilIdle();
}
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(0x0C);
SendCommand(0x20);
WaitUntilIdle();
}
/**
* @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::Init() to awaken
*/
void Epd::Sleep()
{
SendCommand(0x10); //enter deep sleep
SendData(0x01);
DelayMs(200);
DigitalWrite(reset_pin, LOW);
}
/* END OF FILE */
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