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e-Paper

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shhds 2023-06-12 15:10:45 +08:00
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Arduino/epd2in13g/EPD_2in13g.cpp Normal file
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/*****************************************************************************
* | File : EPD_2in13g.c
* | Author : Waveshare team
* | Function : 2inch13 e-paper (G)
* | Info :
*----------------
* | This version: V1.0
* | Date : 2023-05-29
* | 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 "EPD_2in13g.h"
#include <stdlib.h>
Epd::~Epd() {
};
Epd::Epd() {
reset_pin = RST_PIN;
dc_pin = DC_PIN;
cs_pin = CS_PIN;
busy_pin = BUSY_PIN;
WIDTH = EPD_2IN13G_WIDTH;
HEIGHT = EPD_2IN13G_HEIGHT;
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
void Epd::Reset(void)
{
DigitalWrite(RST_PIN, 1);
DelayMs(200);
DigitalWrite(RST_PIN, 0);
DelayMs(2);
DigitalWrite(RST_PIN, 1);
DelayMs(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
void Epd::SendCommand(UBYTE Reg)
{
DigitalWrite(DC_PIN, 0);
DigitalWrite(CS_PIN, 0);
SpiTransfer(Reg);
DigitalWrite(CS_PIN, 1);
}
/******************************************************************************
function : send data
parameter:
Data : Write data
******************************************************************************/
void Epd::SendData(UBYTE Data)
{
DigitalWrite(DC_PIN, 1);
DigitalWrite(CS_PIN, 0);
SpiTransfer(Data);
DigitalWrite(CS_PIN, 1);
}
/******************************************************************************
function : Wait until the busy_pin goes HIGH
parameter:
******************************************************************************/
void Epd::ReadBusy(void)
{
DelayMs(100);
Serial.println("busy");
while(DigitalRead(BUSY_PIN) != 1) { //HIGH: idle, LOW: busy
DelayMs(100);
}
Serial.println("idie");
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
void Epd::TurnOnDisplay(void)
{
SendCommand(0x12); // DISPLAY_REFRESH
SendData(0x00);
ReadBusy();
}
/******************************************************************************
function : Setting the display window
parameter:
******************************************************************************/
void Epd::SetWindows(void)
{
SendCommand(0x61); //TRES
SendData(Source_BITS/256); // EPD_2IN13G_WIDTH_H
SendData(Source_BITS%256); // EPD_2IN13G_WIDTH_L
SendData(EPD_2IN13G_HEIGHT/256); // EPD_2IN13G_HEIGHT_H
SendData(EPD_2IN13G_HEIGHT%256); // EPD_2IN13G_HEIGHT_L
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
int Epd::Init(void)
{
if (IfInit() != 0) {
return -1;
}
Reset();
ReadBusy();
SendCommand(0x4D);
SendData(0x78);
SendCommand(0x00); //PSR
SendData(0x0F);
SendData(0x29);
SendCommand(0x01); //PWRR
SendData(0x07);
SendData(0x00);
SendCommand(0x03); //POFS
SendData(0x10);
SendData(0x54);
SendData(0x44);
SendCommand(0x06); //BTST_P
SendData(0x05);
SendData(0x00);
SendData(0x3F);
SendData(0x0A);
SendData(0x25);
SendData(0x12);
SendData(0x1A);
SendCommand(0x50); //CDI
SendData(0x37);
SendCommand(0x60); //TCON
SendData(0x02);
SendData(0x02);
SetWindows(); // Setting the display window
SendCommand(0xE7);
SendData(0x1C);
SendCommand(0xE3);
SendData(0x22);
SendCommand(0xB4);
SendData(0xD0);
SendCommand(0xB5);
SendData(0x03);
SendCommand(0xE9);
SendData(0x01);
SendCommand(0x30);
SendData(0x08);
SendCommand(0x04);
ReadBusy();
return 0;
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void Epd::Clear(UBYTE color)
{
UWORD Width, Height;
Width = Source_BITS / 4 ;
Height = EPD_2IN13G_HEIGHT;
SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
SendData((color << 6) | (color << 4) | (color << 2) | color);
}
}
TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void Epd::Display(const UBYTE *Image)
{
UWORD Width, Height;
Width = (EPD_2IN13G_WIDTH % 4 == 0)? (EPD_2IN13G_WIDTH / 4 ): (EPD_2IN13G_WIDTH / 4 + 1);
Height = EPD_2IN13G_HEIGHT;
SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < (Source_BITS/4); i++) {
if(i < 31 )
SendData(pgm_read_byte(&Image[i + j * Width]));
else SendData(0x00);
}
}
TurnOnDisplay();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void Epd::Sleep(void)
{
SendCommand(0x02); //power off
ReadBusy(); //waiting for the electronic paper IC to release the idle signal
DelayMs(100); //!!!The delay here is necessary,100mS at least!!!
SendCommand(0x07); //deep sleep
SendData(0XA5);
}