245 lines
6.9 KiB
C++
245 lines
6.9 KiB
C++
/*****************************************************************************
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* | File : EPD_2in13g.c
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* | Author : Waveshare team
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* | Function : 2inch13 e-paper (G)
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2023-05-29
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* | Info :
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* -----------------------------------------------------------------------------
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "EPD_2in13g.h"
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#include <stdlib.h>
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Epd::~Epd() {
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};
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Epd::Epd() {
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reset_pin = RST_PIN;
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dc_pin = DC_PIN;
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cs_pin = CS_PIN;
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busy_pin = BUSY_PIN;
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WIDTH = EPD_2IN13G_WIDTH;
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HEIGHT = EPD_2IN13G_HEIGHT;
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};
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/******************************************************************************
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function : Software reset
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parameter:
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******************************************************************************/
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void Epd::Reset(void)
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{
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DigitalWrite(RST_PIN, 1);
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DelayMs(200);
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DigitalWrite(RST_PIN, 0);
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DelayMs(2);
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DigitalWrite(RST_PIN, 1);
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DelayMs(200);
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}
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/******************************************************************************
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function : send command
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parameter:
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Reg : Command register
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******************************************************************************/
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void Epd::SendCommand(UBYTE Reg)
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{
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DigitalWrite(DC_PIN, 0);
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DigitalWrite(CS_PIN, 0);
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SpiTransfer(Reg);
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DigitalWrite(CS_PIN, 1);
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}
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/******************************************************************************
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function : send data
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parameter:
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Data : Write data
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******************************************************************************/
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void Epd::SendData(UBYTE Data)
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{
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DigitalWrite(DC_PIN, 1);
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DigitalWrite(CS_PIN, 0);
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SpiTransfer(Data);
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DigitalWrite(CS_PIN, 1);
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}
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/******************************************************************************
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function : Wait until the busy_pin goes HIGH
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parameter:
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******************************************************************************/
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void Epd::ReadBusy(void)
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{
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DelayMs(100);
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Serial.println("busy");
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while(DigitalRead(BUSY_PIN) != 1) { //HIGH: idle, LOW: busy
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DelayMs(100);
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}
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Serial.println("idie");
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}
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/******************************************************************************
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function : Turn On Display
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parameter:
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******************************************************************************/
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void Epd::TurnOnDisplay(void)
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{
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SendCommand(0x12); // DISPLAY_REFRESH
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SendData(0x00);
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ReadBusy();
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}
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/******************************************************************************
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function : Setting the display window
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parameter:
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******************************************************************************/
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void Epd::SetWindows(void)
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{
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SendCommand(0x61); //TRES
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SendData(Source_BITS/256); // EPD_2IN13G_WIDTH_H
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SendData(Source_BITS%256); // EPD_2IN13G_WIDTH_L
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SendData(EPD_2IN13G_HEIGHT/256); // EPD_2IN13G_HEIGHT_H
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SendData(EPD_2IN13G_HEIGHT%256); // EPD_2IN13G_HEIGHT_L
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}
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/******************************************************************************
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function : Initialize the e-Paper register
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parameter:
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******************************************************************************/
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int Epd::Init(void)
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{
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if (IfInit() != 0) {
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return -1;
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}
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Reset();
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ReadBusy();
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SendCommand(0x4D);
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SendData(0x78);
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SendCommand(0x00); //PSR
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SendData(0x0F);
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SendData(0x29);
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SendCommand(0x01); //PWRR
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SendData(0x07);
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SendData(0x00);
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SendCommand(0x03); //POFS
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SendData(0x10);
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SendData(0x54);
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SendData(0x44);
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SendCommand(0x06); //BTST_P
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SendData(0x05);
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SendData(0x00);
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SendData(0x3F);
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SendData(0x0A);
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SendData(0x25);
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SendData(0x12);
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SendData(0x1A);
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SendCommand(0x50); //CDI
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SendData(0x37);
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SendCommand(0x60); //TCON
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SendData(0x02);
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SendData(0x02);
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SetWindows(); // Setting the display window
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SendCommand(0xE7);
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SendData(0x1C);
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SendCommand(0xE3);
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SendData(0x22);
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SendCommand(0xB4);
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SendData(0xD0);
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SendCommand(0xB5);
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SendData(0x03);
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SendCommand(0xE9);
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SendData(0x01);
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SendCommand(0x30);
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SendData(0x08);
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SendCommand(0x04);
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ReadBusy();
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return 0;
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}
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/******************************************************************************
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function : Clear screen
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parameter:
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******************************************************************************/
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void Epd::Clear(UBYTE color)
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{
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UWORD Width, Height;
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Width = Source_BITS / 4 ;
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Height = EPD_2IN13G_HEIGHT;
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SendCommand(0x10);
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for (UWORD j = 0; j < Height; j++) {
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for (UWORD i = 0; i < Width; i++) {
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SendData((color << 6) | (color << 4) | (color << 2) | color);
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}
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}
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TurnOnDisplay();
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}
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/******************************************************************************
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function : Sends the image buffer in RAM to e-Paper and displays
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parameter:
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******************************************************************************/
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void Epd::Display(const UBYTE *Image)
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{
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UWORD Width, Height;
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Width = (EPD_2IN13G_WIDTH % 4 == 0)? (EPD_2IN13G_WIDTH / 4 ): (EPD_2IN13G_WIDTH / 4 + 1);
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Height = EPD_2IN13G_HEIGHT;
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SendCommand(0x10);
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for (UWORD j = 0; j < Height; j++) {
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for (UWORD i = 0; i < (Source_BITS/4); i++) {
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if(i < 31 )
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SendData(pgm_read_byte(&Image[i + j * Width]));
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else SendData(0x00);
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}
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}
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TurnOnDisplay();
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}
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/******************************************************************************
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function : Enter sleep mode
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parameter:
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******************************************************************************/
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void Epd::Sleep(void)
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{
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SendCommand(0x02); //power off
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ReadBusy(); //waiting for the electronic paper IC to release the idle signal
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DelayMs(100); //!!!The delay here is necessary,100mS at least!!!
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SendCommand(0x07); //deep sleep
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SendData(0XA5);
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}
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