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e-paper-display/bcm2835-1.71/e-Paper/Arduino/epd2in9d/epd2in9d.cpp

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add needed resources
2024-01-31 22:04:09 +00:00
/*****************************************************************************
* | File : epd2in9d.h
* | Author : Waveshare team
* | Function : 2.9inch e-paper
* | 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 "epd2in9d.h"
/**
* partial screen update LUT
**/
const unsigned char EPD_2IN9D_lut_vcom1[] = {
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
,0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_ww1[] = {
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_bw1[] = {
0x80, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_wb1[] = {
0x40, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_bb1[] = {
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
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)
{
char busy;
do {
SendCommand(0x71);
busy = DigitalRead(busy_pin);
busy =!(busy & 0x01);
} while(busy);
DelayMs(20);
}
/******************************************************************************
function : LUT download
parameter:
******************************************************************************/
void Epd::SetPartReg(void)
{
SendCommand(0x01); //POWER SETTING
SendData(0x03);
SendData(0x00);
SendData(0x2b);
SendData(0x2b);
SendData(0x03);
SendCommand(0x06); //boost soft start
SendData(0x17); //A
SendData(0x17); //B
SendData(0x17); //C
SendCommand(0x04);
WaitUntilIdle();
SendCommand(0x00); //panel setting
SendData(0xbf); //LUT from OTP，128x296
SendCommand(0x30); //PLL setting
SendData(0x3a); // 3a 100HZ 29 150Hz 39 200HZ 31 171HZ
SendCommand(0x61); //resolution setting
SendData(EPD_WIDTH);
SendData((EPD_WIDTH >> 8) & 0xff);
SendData(EPD_HEIGHT & 0xff);
SendCommand(0x82); //vcom_DC setting
SendData(0x12);
SendCommand(0X50);
SendData(0x97);
unsigned int count;
SendCommand(0x20);
for(count=0; count<44; count++) {
SendData(EPD_2IN9D_lut_vcom1[count]);
}
SendCommand(0x21);
for(count=0; count<42; count++) {
SendData(EPD_2IN9D_lut_ww1[count]);
}
SendCommand(0x22);
for(count=0; count<42; count++) {
SendData(EPD_2IN9D_lut_bw1[count]);
}
SendCommand(0x23);
for(count=0; count<42; count++) {
SendData(EPD_2IN9D_lut_wb1[count]);
}
SendCommand(0x24);
for(count=0; count<42; count++) {
SendData(EPD_2IN9D_lut_bb1[count]);
}
}
void Epd::TurnOnDisplay(void)
{
SendCommand(0x12); //DISPLAY REFRESH
DelayMs(10); //!!!The delay here is necessary, 200uS at least!!!
WaitUntilIdle();
}
int Epd::Init(void)
{
/* this calls the peripheral hardware interface, see epdif */
if (IfInit() != 0) {
return -1;
}
Reset();
SendCommand(0x04);
WaitUntilIdle();//waiting for the electronic paper IC to release the idle signal
SendCommand(0x00); //panel setting
SendData(0x1f); //LUT from OTP，KW-BF KWR-AF BWROTP 0f BWOTP 1f
SendCommand(0x61); //resolution setting
SendData (0x80);
SendData (0x01);
SendData (0x28);
SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
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(20);
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(2);
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(2);
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(2);
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
}
void Epd::Clear(void)
{
int w, h;
w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
h = EPD_HEIGHT;
SendCommand(0x10);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(0x00);
}
}
SendCommand(0x13);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(0xFF);
}
}
TurnOnDisplay();
}
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;
SendCommand(0x10);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(0x00);
}
}
// Dev_Delay_ms(10);
SendCommand(0x13);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(pgm_read_byte(&frame_buffer[i + j * w]));
}
}
// Dev_Delay_ms(10);
TurnOnDisplay();
}
void Epd::DisplayPart(const unsigned char* frame_buffer)
{
/* Set partial Windows */
SetPartReg();
SendCommand(0x91); //This command makes the display enter partial mode
SendCommand(0x90); //resolution setting
SendData(0); //x-start
SendData(EPD_WIDTH - 1); //x-end
SendData(0);
SendData(0); //y-start
SendData(EPD_HEIGHT / 256);
SendData(EPD_HEIGHT % 256 - 1); //y-end
SendData(0x28);
int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
int h = EPD_HEIGHT;
/* send data */
SendCommand(0x13);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
SendData(pgm_read_byte(&frame_buffer[i + j * w]));
}
}
/* Set partial refresh */
TurnOnDisplay();
}
/**
* @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(0X50);
SendData(0xf7);
SendCommand(0X02); //power off
WaitUntilIdle();
SendCommand(0X07); //deep sleep
SendData(0xA5);
DigitalWrite(reset_pin, LOW);
}
/* END OF FILE */
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