291 lines
8.4 KiB
C++
291 lines
8.4 KiB
C++
/**
|
|
* @filename : epd5in83b.cpp
|
|
* @brief : Implements for 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 "epd5in83b.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)
|
|
{
|
|
if (IfInit() != 0) {
|
|
return -1;
|
|
}
|
|
Reset();
|
|
|
|
SendCommand(POWER_SETTING);
|
|
SendData(0x37);
|
|
SendData(0x00);
|
|
|
|
SendCommand(PANEL_SETTING);
|
|
SendData(0xCF);
|
|
SendData(0x08);
|
|
|
|
SendCommand(BOOSTER_SOFT_START);
|
|
SendData(0xc7);
|
|
SendData(0xcc);
|
|
SendData(0x28);
|
|
|
|
SendCommand(PLL_CONTROL);
|
|
SendData(0x3A);
|
|
|
|
SendCommand(TEMPERATURE_CALIBRATION);
|
|
SendData(0x00);
|
|
|
|
SendCommand(VCOM_AND_DATA_INTERVAL_SETTING);
|
|
SendData(0x77);
|
|
|
|
SendCommand(TCON_SETTING);
|
|
SendData(0x22);
|
|
|
|
SendCommand(TCON_RESOLUTION);
|
|
SendData(0x02); //source 600
|
|
SendData(0x58);
|
|
SendData(0x01); //gate 448
|
|
SendData(0xC0);
|
|
|
|
SendCommand(VCM_DC_SETTING);
|
|
SendData(0x20); //decide by LUT file
|
|
|
|
SendCommand(0xe5); //FLASH MODE
|
|
SendData(0x03);
|
|
|
|
SendCommand(POWER_ON);
|
|
WaitUntilIdle();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @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(DigitalRead(busy_pin) == 0) { //0: busy, 1: idle
|
|
DelayMs(100);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief: module reset.
|
|
* often used to awaken the module in deep sleep,
|
|
* see Epd::Sleep();
|
|
*/
|
|
void Epd::Reset(void)
|
|
{
|
|
DigitalWrite(reset_pin, LOW); //module reset
|
|
DelayMs(200);
|
|
DigitalWrite(reset_pin, HIGH);
|
|
DelayMs(200);
|
|
}
|
|
|
|
void Epd::DisplayFrame(const unsigned char* image_black, const unsigned char* image_red)
|
|
{
|
|
unsigned char Data_Black, Data_Red, Data;
|
|
unsigned int i, j, k;
|
|
SendCommand(DATA_START_TRANSMISSION_1);
|
|
for(i = 0; i < 448; i++) {
|
|
for(j = 0; j < 600 / 8; i++) {
|
|
Data_Black = pgm_read_byte(image_black + i*(600 / 8) + k);
|
|
Data_Red = pgm_read_byte(image_red + i*(600 / 8) + k);
|
|
k = 0;
|
|
while (k < 8) {
|
|
if ((Data_Red & 0x80) == 0x00) {
|
|
Data = 0x04; //red
|
|
} else if ((Data_Black & 0x80) == 0x00) {
|
|
Data = 0x00; //black
|
|
} else {
|
|
Data = 0x03; //white
|
|
}
|
|
Data = (Data << 4) & 0xFF;
|
|
Data_Black = (Data_Black << 1) & 0xFF;
|
|
Data_Red = (Data_Red << 1) & 0xFF;
|
|
k += 1;
|
|
|
|
if((Data_Red & 0x80) == 0x00) {
|
|
Data |= 0x04; //red
|
|
} else if ((Data_Black & 0x80) == 0x00) {
|
|
Data |= 0x00; //black
|
|
} else {
|
|
Data |= 0x03; //white
|
|
}
|
|
Data_Black = (Data_Black << 1) & 0xFF;
|
|
Data_Red = (Data_Red << 1) & 0xFF;
|
|
SendData(Data);
|
|
k += 1;
|
|
}
|
|
}
|
|
}
|
|
SendCommand(DISPLAY_REFRESH);
|
|
DelayMs(100);
|
|
WaitUntilIdle();
|
|
}
|
|
|
|
void Epd::Clean(void)
|
|
{
|
|
SendCommand(DATA_START_TRANSMISSION_1);
|
|
for (long i = 0; i < 448; i++) {
|
|
for (long j = 0; j < 600 / 2; j++) {
|
|
SendData(0x33);
|
|
}
|
|
}
|
|
SendCommand(DISPLAY_REFRESH);
|
|
DelayMs(100);
|
|
WaitUntilIdle();
|
|
}
|
|
|
|
void Epd::DisplayOneQuarterFrame(const unsigned char* image_black, const unsigned char* image_red)
|
|
{
|
|
unsigned char Data_Black, Data_Red, Data;
|
|
unsigned int j;
|
|
SendCommand(DATA_START_TRANSMISSION_1);
|
|
|
|
for (long i = 0; i < 224; i++) {
|
|
for (long k = 0; k < 38; k++) {//38 => 300 / 8 = 37.5
|
|
Data_Black = pgm_read_byte(image_black + i*38 + k);
|
|
Data_Red = pgm_read_byte(image_red + i*38 + k);
|
|
j = 0;
|
|
if(k == 37) {
|
|
while (j < 4) {
|
|
if ((Data_Red & 0x80) == 0x00) {
|
|
Data = 0x04; //red
|
|
} else if ((Data_Black & 0x80) == 0x00) {
|
|
Data = 0x00; //black
|
|
} else {
|
|
Data = 0x03; //white
|
|
}
|
|
Data = (Data << 4) & 0xFF;
|
|
Data_Black = (Data_Black << 1) & 0xFF;
|
|
Data_Red = (Data_Red << 1) & 0xFF;
|
|
j += 1;
|
|
|
|
if((Data_Red & 0x80) == 0x00) {
|
|
Data |= 0x04; //red
|
|
} else if ((Data_Black & 0x80) == 0x00) {
|
|
Data |= 0x00; //black
|
|
} else {
|
|
Data |= 0x03; //white
|
|
}
|
|
Data_Black = (Data_Black << 1) & 0xFF;
|
|
Data_Red = (Data_Red << 1) & 0xFF;
|
|
SendData(Data);
|
|
j += 1;
|
|
}
|
|
} else {
|
|
while (j < 8) {
|
|
if ((Data_Red & 0x80) == 0x00) {
|
|
Data = 0x04; //red
|
|
} else if ((Data_Black & 0x80) == 0x00) {
|
|
Data = 0x00; //black
|
|
} else {
|
|
Data = 0x03; //white
|
|
}
|
|
Data = (Data << 4) & 0xFF;
|
|
Data_Black = (Data_Black << 1) & 0xFF;
|
|
Data_Red = (Data_Red << 1) & 0xFF;
|
|
j += 1;
|
|
|
|
if((Data_Red & 0x80) == 0x00) {
|
|
Data |= 0x04; //red
|
|
} else if ((Data_Black & 0x80) == 0x00) {
|
|
Data |= 0x00; //black
|
|
} else {
|
|
Data |= 0x03; //white
|
|
}
|
|
Data_Black = (Data_Black << 1) & 0xFF;
|
|
Data_Red = (Data_Red << 1) & 0xFF;
|
|
SendData(Data);
|
|
j += 1;
|
|
}
|
|
}
|
|
}
|
|
for (long k = 0; k < 150; k++) { // 1/4 show white
|
|
SendData(0x33);
|
|
}
|
|
}
|
|
for (long i = 0; i < 224; i++) {
|
|
for (long k = 0; k < 150; k++) { // 1/4 show red
|
|
SendData(0x44);
|
|
}
|
|
for (long k = 0; k < 150; k++) { // 1/4 show black
|
|
SendData(0x00);
|
|
}
|
|
}
|
|
SendCommand(DISPLAY_REFRESH);
|
|
DelayMs(100);
|
|
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_Reset() to awaken
|
|
*/
|
|
void Epd::Sleep(void)
|
|
{
|
|
SendCommand(POWER_OFF);
|
|
WaitUntilIdle();
|
|
SendCommand(DEEP_SLEEP);
|
|
SendData(0xa5);
|
|
}
|
|
|
|
/* END OF FILE */
|
|
|
|
|