432 lines
12 KiB
C++
432 lines
12 KiB
C++
/*****************************************************************************
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* | File : epd2in13_V4.cpp
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* | Author : Waveshare team
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* | Function : 2.13inch e-paper V4
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2023-6-25
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* | Info :
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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 <stdlib.h>
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#include "epd2in13_V4.h"
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Epd::~Epd()
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{
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};
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/******************************************************************************
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function : Pin definition
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parameter:
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******************************************************************************/
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Epd::Epd()
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{
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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_WIDTH;
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height = EPD_HEIGHT;
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bufwidth = 128/8; //16
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bufheight = 63;
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};
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/******************************************************************************
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function : send command
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parameter:
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command : Command register
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******************************************************************************/
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void Epd::SendCommand(unsigned char command)
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{
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DigitalWrite(dc_pin, LOW);
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SpiTransfer(command);
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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(unsigned char data)
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{
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DigitalWrite(dc_pin, HIGH);
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SpiTransfer(data);
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}
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/******************************************************************************
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function : Wait until the busy_pin goes LOW
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parameter:
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******************************************************************************/
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void Epd::WaitUntilIdle(void)
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{
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while(1) { //LOW: idle, HIGH: busy
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if(DigitalRead(busy_pin) == 0)
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break;
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DelayMs(10);
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}
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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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Xstart : X-axis starting position
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Ystart : Y-axis starting position
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Xend : End position of X-axis
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Yend : End position of Y-axis
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******************************************************************************/
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void Epd::SetWindows(unsigned char Xstart, unsigned char Ystart, unsigned char Xend, unsigned char Yend)
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{
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SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
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SendData((Xstart>>3) & 0xFF);
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SendData((Xend>>3) & 0xFF);
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SendCommand(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION
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SendData(Ystart & 0xFF);
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SendData((Ystart >> 8) & 0xFF);
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SendData(Yend & 0xFF);
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SendData((Yend >> 8) & 0xFF);
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}
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/******************************************************************************
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function : Set Cursor
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parameter:
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Xstart : X-axis starting position
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Ystart : Y-axis starting position
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******************************************************************************/
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void Epd::SetCursor(unsigned char Xstart, unsigned char Ystart)
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{
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SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
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SendData(Xstart & 0xFF);
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SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER
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SendData(Ystart & 0xFF);
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SendData((Ystart >> 8) & 0xFF);
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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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Mode : Mode selection
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******************************************************************************/
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int Epd::Init(char Mode)
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{
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/* this calls the peripheral hardware interface, see epdif */
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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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int count;
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if(Mode == FULL) {
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WaitUntilIdle();
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SendCommand(0x12); // soft reset
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WaitUntilIdle();
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SendCommand(0x01); //Driver output control
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SendData(0xF9);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x11); //data entry mode
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SendData(0x03);
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SetWindows(0, 0, EPD_WIDTH-1, EPD_HEIGHT-1);
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SetCursor(0, 0);
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SendCommand(0x3C); //BorderWavefrom
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SendData(0x05);
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SendCommand(0x21); // Display update control
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SendData(0x00);
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SendData(0x80);
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SendCommand(0x18); //Read built-in temperature sensor
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SendData(0x80);
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WaitUntilIdle();
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}
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else if(Mode == FAST) {
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WaitUntilIdle();
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SendCommand(0x12); // soft reset
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WaitUntilIdle();
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SendCommand(0x18); // Read built-in temperature sensor
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SendData(0x80);
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SendCommand(0x11); // data entry mode
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SendData(0x03);
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SetWindows(0, 0, EPD_WIDTH-1, EPD_HEIGHT-1);
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SetCursor(0, 0);
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SendCommand(0x22); // Load temperature value
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SendData(0xB1);
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SendCommand(0x20);
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WaitUntilIdle();
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SendCommand(0x1A); // Write to temperature register
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SendData(0x64);
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SendData(0x00);
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SendCommand(0x22); // Load temperature value
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SendData(0x91);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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else if(Mode == PART) {
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DigitalWrite(reset_pin, LOW); //module reset
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DelayMs(1);
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DigitalWrite(reset_pin, HIGH);
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SendCommand(0x3C); //BorderWavefrom
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SendData(0x80);
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SendCommand(0x01); //Driver output control
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SendData(0xF9);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x11); // data entry mode
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SendData(0x03);
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SetWindows(0, 0, EPD_WIDTH-1, EPD_HEIGHT-1);
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SetCursor(0, 0);
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} else {
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return -1;
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}
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return 0;
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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(reset_pin, HIGH);
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DelayMs(20);
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DigitalWrite(reset_pin, LOW); //module reset
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DelayMs(2);
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DigitalWrite(reset_pin, HIGH);
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DelayMs(20);
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this->count = 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(void)
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{
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int w, h;
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w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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h = EPD_HEIGHT;
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SendCommand(0x24);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(0xff);
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}
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}
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//DISPLAY REFRESH
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SendCommand(0x22);
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SendData(0xf7);
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SendCommand(0x20);
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WaitUntilIdle();
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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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frame_buffer : Image data
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******************************************************************************/
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void Epd::Display(const unsigned char* frame_buffer)
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{
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int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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int h = EPD_HEIGHT;
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if (frame_buffer != NULL) {
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SendCommand(0x24);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(pgm_read_byte(&frame_buffer[i + j * w]));
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}
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}
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}
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//DISPLAY REFRESH
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SendCommand(0x22);
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SendData(0xf7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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void Epd::Display1(const unsigned char* frame_buffer) {
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if(this->count == 0){
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SendCommand(0x24);
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this->count++;
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}else if(this->count > 0 && this->count < 4 ){
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this->count++;
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}
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for(int i = 0; i < this->bufwidth * this->bufheight; i++){
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SendData(frame_buffer[i]);
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}
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if(this->count == 4){
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SendCommand(0x22);
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SendData(0xf7);
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SendCommand(0x20);
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WaitUntilIdle();
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this->count = 0;
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}
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}
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/******************************************************************************
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function : Sends the image buffer in RAM to e-Paper and fast displays
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parameter:
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frame_buffer : Image data
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******************************************************************************/
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void Epd::Display_Fast(const unsigned char* frame_buffer)
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{
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int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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int h = EPD_HEIGHT;
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if (frame_buffer != NULL) {
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SendCommand(0x24);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(pgm_read_byte(&frame_buffer[i + j * w]));
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}
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}
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}
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//DISPLAY REFRESH
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SendCommand(0x22);
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SendData(0xC7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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/******************************************************************************
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function : Refresh a base image
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parameter:
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frame_buffer : Image data
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******************************************************************************/
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void Epd::DisplayPartBaseImage(const unsigned char* frame_buffer)
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{
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int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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int h = EPD_HEIGHT;
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if (frame_buffer != NULL) {
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SendCommand(0x24);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(pgm_read_byte(&frame_buffer[i + j * w]));
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}
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}
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SendCommand(0x26);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(pgm_read_byte(&frame_buffer[i + j * w]));
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}
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}
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}
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//DISPLAY REFRESH
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SendCommand(0x22);
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SendData(0xf7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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/******************************************************************************
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function : Sends the image buffer in RAM to e-Paper and partial refresh
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parameter:
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frame_buffer : Image data
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******************************************************************************/
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void Epd::DisplayPart(const unsigned char* frame_buffer)
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{
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int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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int h = EPD_HEIGHT;
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if (frame_buffer != NULL) {
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SendCommand(0x24);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(pgm_read_byte(&frame_buffer[i + j * w]));
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}
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}
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}
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//DISPLAY REFRESH
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SendCommand(0x22);
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SendData(0xff);
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SendCommand(0x20);
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WaitUntilIdle();
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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::ClearPart(void)
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{
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int w, h;
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w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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h = EPD_HEIGHT;
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SendCommand(0x24);
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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SendData(0xff);
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}
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}
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//DISPLAY REFRESH
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SendCommand(0x22);
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SendData(0x0f);
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SendCommand(0x20);
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WaitUntilIdle();
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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()
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{
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SendCommand(0x10); //enter deep sleep
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SendData(0x01);
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DelayMs(200);
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DigitalWrite(reset_pin, LOW);
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}
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/* END OF FILE */
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