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e-Paper/Arduino/epd2in9_V2/epd2in9_V2.cpp
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631
e-Paper/Arduino/epd2in9_V2/epd2in9_V2.cpp
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/**
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* @filename : epd2in9_V2.cpp
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* @brief : Implements for e-paper library
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* @author :
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*
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* Copyright (C) Waveshare Nov 9 2020
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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
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* 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
|
||||
* 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
|
||||
* 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,
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||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include "epd2in9_V2.h"
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unsigned char _WF_PARTIAL_2IN9[159] =
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||||
{
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||||
0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x0,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x0A,0x0,0x0,0x0,0x0,0x0,0x2,
|
||||
0x1,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x1,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
|
||||
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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0x0,0x0,0x0,0x0,0x0,0x0,0x0,
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||||
0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0,
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0x22,0x17,0x41,0xB0,0x32,0x36,
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||||
};
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||||
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||||
unsigned char WS_20_30[159] =
|
||||
{
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0x80, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0,
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||||
0x10, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0,
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0x80, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0,
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0x10, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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||||
0x14, 0x8, 0x0, 0x0, 0x0, 0x0, 0x1,
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||||
0xA, 0xA, 0x0, 0xA, 0xA, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
|
||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
|
||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
|
||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
|
||||
0x14, 0x8, 0x0, 0x1, 0x0, 0x0, 0x1,
|
||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1,
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||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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||||
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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||||
0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x0, 0x0, 0x0,
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||||
0x22, 0x17, 0x41, 0x0, 0x32, 0x36
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||||
};
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unsigned char Gray4[159] =
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||||
{
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||||
0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L0 //2.28s
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0x20, 0x60, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L1
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||||
0x28, 0x60, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L2
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||||
0x2A, 0x60, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L3
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||||
0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L4
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||||
0x00, 0x02, 0x00, 0x05, 0x14, 0x00, 0x00, //TP, SR, RP of Group0
|
||||
0x1E, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x01, //TP, SR, RP of Group1
|
||||
0x00, 0x02, 0x00, 0x05, 0x14, 0x00, 0x00, //TP, SR, RP of Group2
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group3
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group4
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group5
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group6
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group7
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group8
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group9
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group10
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||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group11
|
||||
0x24, 0x22, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00, //FR, XON
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||||
0x22, 0x17, 0x41, 0xAE, 0x32, 0x28, //EOPT VGH VSH1 VSH2 VSL VCOM
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||||
};
|
||||
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unsigned char WF_FULL[159] =
|
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{
|
||||
0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L0 1.00S
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||||
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L1
|
||||
0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L2
|
||||
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L3
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //VS L4
|
||||
0x19, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group0
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group1
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group2
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group3
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group4
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group5
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group6
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group7
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group8
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group9
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group10
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //TP, SR, RP of Group11
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0x24, 0x42, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00, //FR, XON
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0x22, 0x17, 0x41, 0xAE, 0x32, 0x38, //EOPT VGH VSH1 VSH2 VSL VCOM
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};
|
||||
|
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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_WIDTH;
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height = EPD_HEIGHT;
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};
|
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|
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int Epd::Init() {
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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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|
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/* EPD hardware init start */
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WaitUntilIdle();
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SendCommand(0x12); //SWRESET
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WaitUntilIdle();
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SendCommand(0x01); //Driver output control
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SendData(0x27);
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SendData(0x01);
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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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SetMemoryArea(0, 0, width-1, height-1);
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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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SetMemoryPointer(0, 0);
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WaitUntilIdle();
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SetLut_by_host(WS_20_30);
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/* EPD hardware init end */
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return 0;
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}
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int Epd::Init_Fast() {
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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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/* EPD hardware init start */
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WaitUntilIdle();
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SendCommand(0x12); //SWRESET
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WaitUntilIdle();
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SendCommand(0x01); //Driver output control
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SendData(0x27);
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SendData(0x01);
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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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SetMemoryArea(0, 0, width-1, height-1);
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SendCommand(0x3C);
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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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SetMemoryPointer(0, 0);
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WaitUntilIdle();
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SetLut_by_host(WF_FULL);
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/* EPD hardware init end */
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return 0;
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}
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int Epd::Init_4Gray() {
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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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|
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/* EPD hardware init start */
|
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WaitUntilIdle();
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SendCommand(0x12); //SWRESET
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WaitUntilIdle();
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|
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SendCommand(0x01); //Driver output control
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SendData(0x27);
|
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SendData(0x01);
|
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SendData(0x00);
|
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|
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SendCommand(0x11); //data entry mode
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SendData(0x03);
|
||||
|
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SetMemoryArea(8, 0, width, height-1);
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SendCommand(0x3C);
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SendData(0x04);
|
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|
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SetMemoryPointer(8, 0);
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WaitUntilIdle();
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|
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SetLut_by_host(Gray4);
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||||
/* EPD hardware init end */
|
||||
return 0;
|
||||
}
|
||||
|
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/**
|
||||
* @brief: basic function for sending commands
|
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*/
|
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void Epd::SendCommand(unsigned char command) {
|
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DigitalWrite(dc_pin, LOW);
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DigitalWrite(cs_pin, LOW);
|
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SpiTransfer(command);
|
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DigitalWrite(cs_pin, HIGH);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: basic function for sending data
|
||||
*/
|
||||
void Epd::SendData(unsigned char data) {
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DigitalWrite(dc_pin, HIGH);
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DigitalWrite(cs_pin, LOW);
|
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SpiTransfer(data);
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DigitalWrite(cs_pin, HIGH);
|
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}
|
||||
|
||||
/**
|
||||
* @brief: Wait until the busy_pin goes LOW
|
||||
*/
|
||||
void Epd::WaitUntilIdle(void) {
|
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while(1) { //=1 BUSY
|
||||
if(DigitalRead(busy_pin)==LOW)
|
||||
break;
|
||||
DelayMs(5);
|
||||
}
|
||||
DelayMs(5);
|
||||
}
|
||||
|
||||
/**
|
||||
* @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);
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||||
DigitalWrite(reset_pin, LOW); //module reset
|
||||
DelayMs(5);
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||||
DigitalWrite(reset_pin, HIGH);
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||||
DelayMs(20);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: put an image buffer to the frame memory.
|
||||
* this won't update the display.
|
||||
*/
|
||||
void Epd::SetFrameMemory(
|
||||
const unsigned char* image_buffer,
|
||||
int x,
|
||||
int y,
|
||||
int image_width,
|
||||
int image_height
|
||||
) {
|
||||
int x_end;
|
||||
int y_end;
|
||||
|
||||
if (
|
||||
image_buffer == NULL ||
|
||||
x < 0 || image_width < 0 ||
|
||||
y < 0 || image_height < 0
|
||||
) {
|
||||
return;
|
||||
}
|
||||
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
|
||||
x &= 0xF8;
|
||||
image_width &= 0xF8;
|
||||
if (x + image_width >= this->width) {
|
||||
x_end = this->width - 1;
|
||||
} else {
|
||||
x_end = x + image_width - 1;
|
||||
}
|
||||
if (y + image_height >= this->height) {
|
||||
y_end = this->height - 1;
|
||||
} else {
|
||||
y_end = y + image_height - 1;
|
||||
}
|
||||
SetMemoryArea(x, y, x_end, y_end);
|
||||
SetMemoryPointer(x, y);
|
||||
SendCommand(0x24);
|
||||
/* send the image data */
|
||||
for (int j = 0; j < y_end - y + 1; j++) {
|
||||
for (int i = 0; i < (x_end - x + 1) / 8; i++) {
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SendData(image_buffer[i + j * (image_width / 8)]);
|
||||
}
|
||||
}
|
||||
}
|
||||
void Epd::SetFrameMemory_Partial(
|
||||
const unsigned char* image_buffer,
|
||||
int x,
|
||||
int y,
|
||||
int image_width,
|
||||
int image_height
|
||||
) {
|
||||
int x_end;
|
||||
int y_end;
|
||||
|
||||
if (
|
||||
image_buffer == NULL ||
|
||||
x < 0 || image_width < 0 ||
|
||||
y < 0 || image_height < 0
|
||||
) {
|
||||
return;
|
||||
}
|
||||
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
|
||||
x &= 0xF8;
|
||||
image_width &= 0xF8;
|
||||
if (x + image_width >= this->width) {
|
||||
x_end = this->width - 1;
|
||||
} else {
|
||||
x_end = x + image_width - 1;
|
||||
}
|
||||
if (y + image_height >= this->height) {
|
||||
y_end = this->height - 1;
|
||||
} else {
|
||||
y_end = y + image_height - 1;
|
||||
}
|
||||
|
||||
DigitalWrite(reset_pin, LOW);
|
||||
DelayMs(2);
|
||||
DigitalWrite(reset_pin, HIGH);
|
||||
DelayMs(2);
|
||||
|
||||
SetLut(_WF_PARTIAL_2IN9);
|
||||
SendCommand(0x37);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
SendData(0x40);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
SendData(0x00);
|
||||
|
||||
SendCommand(0x3C); //BorderWavefrom
|
||||
SendData(0x80);
|
||||
|
||||
SendCommand(0x22);
|
||||
SendData(0xC0);
|
||||
SendCommand(0x20);
|
||||
WaitUntilIdle();
|
||||
|
||||
SetMemoryArea(x, y, x_end, y_end);
|
||||
SetMemoryPointer(x, y);
|
||||
SendCommand(0x24);
|
||||
/* send the image data */
|
||||
for (int j = 0; j < y_end - y + 1; j++) {
|
||||
for (int i = 0; i < (x_end - x + 1) / 8; i++) {
|
||||
SendData(image_buffer[i + j * (image_width / 8)]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: put an image buffer to the frame memory.
|
||||
* this won't update the display.
|
||||
*
|
||||
* Question: When do you use this function instead of
|
||||
* void SetFrameMemory(
|
||||
* const unsigned char* image_buffer,
|
||||
* int x,
|
||||
* int y,
|
||||
* int image_width,
|
||||
* int image_height
|
||||
* );
|
||||
* Answer: SetFrameMemory with parameters only reads image data
|
||||
* from the RAM but not from the flash in AVR chips (for AVR chips,
|
||||
* you have to use the function pgm_read_byte to read buffers
|
||||
* from the flash).
|
||||
*/
|
||||
void Epd::SetFrameMemory(const unsigned char* image_buffer) {
|
||||
SetMemoryArea(0, 0, this->width - 1, this->height - 1);
|
||||
SetMemoryPointer(0, 0);
|
||||
SendCommand(0x24);
|
||||
/* send the image data */
|
||||
for (int i = 0; i < this->width / 8 * this->height; i++) {
|
||||
SendData(pgm_read_byte(&image_buffer[i]));
|
||||
}
|
||||
}
|
||||
void Epd::SetFrameMemory_Base(const unsigned char* image_buffer) {
|
||||
SetMemoryArea(0, 0, this->width - 1, this->height - 1);
|
||||
SetMemoryPointer(0, 0);
|
||||
SendCommand(0x24);
|
||||
/* send the image data */
|
||||
for (int i = 0; i < this->width / 8 * this->height; i++) {
|
||||
SendData(pgm_read_byte(&image_buffer[i]));
|
||||
}
|
||||
SendCommand(0x26);
|
||||
/* send the image data */
|
||||
for (int i = 0; i < this->width / 8 * this->height; i++) {
|
||||
SendData(pgm_read_byte(&image_buffer[i]));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: clear the frame memory with the specified color.
|
||||
* this won't update the display.
|
||||
*/
|
||||
void Epd::ClearFrameMemory(unsigned char color) {
|
||||
SetMemoryArea(0, 0, this->width - 1, this->height - 1);
|
||||
SetMemoryPointer(0, 0);
|
||||
SendCommand(0x24);
|
||||
/* send the color data */
|
||||
for (int i = 0; i < this->width / 8 * this->height; i++) {
|
||||
SendData(color);
|
||||
}
|
||||
|
||||
SendCommand(0x26);
|
||||
/* send the color data */
|
||||
for (int i = 0; i < this->width / 8 * this->height; i++) {
|
||||
SendData(color);
|
||||
}
|
||||
}
|
||||
|
||||
void Epd::Display4Gray(const unsigned char *Image)
|
||||
{
|
||||
int i,j,k;
|
||||
unsigned char temp1,temp2,temp3;
|
||||
|
||||
SendCommand(0x24);
|
||||
for(i=0;i<4736;i++)
|
||||
{
|
||||
temp3=0;
|
||||
for(j=0;j<2;j++)
|
||||
{
|
||||
temp1 = pgm_read_byte(&Image[i*2+j]);
|
||||
for(k=0;k<2;k++)
|
||||
{
|
||||
temp2 = temp1&0xC0 ;
|
||||
if(temp2 == 0xC0)
|
||||
temp3 |= 0x00;//white
|
||||
else if(temp2 == 0x00)
|
||||
temp3 |= 0x01; //black
|
||||
else if(temp2 == 0x80)
|
||||
temp3 |= 0x01; //gray1
|
||||
else //0x40
|
||||
temp3 |= 0x00; //gray2
|
||||
temp3 <<= 1;
|
||||
|
||||
temp1 <<= 2;
|
||||
temp2 = temp1&0xC0 ;
|
||||
if(temp2 == 0xC0) //white
|
||||
temp3 |= 0x00;
|
||||
else if(temp2 == 0x00) //black
|
||||
temp3 |= 0x01;
|
||||
else if(temp2 == 0x80)
|
||||
temp3 |= 0x01; //gray1
|
||||
else //0x40
|
||||
temp3 |= 0x00; //gray2
|
||||
if(j!=1 || k!=1)
|
||||
temp3 <<= 1;
|
||||
|
||||
temp1 <<= 2;
|
||||
}
|
||||
|
||||
}
|
||||
SendData(temp3);
|
||||
}
|
||||
// new data
|
||||
SendCommand(0x26);
|
||||
for(i=0;i<4736;i++)
|
||||
{
|
||||
temp3=0;
|
||||
for(j=0;j<2;j++)
|
||||
{
|
||||
temp1 = pgm_read_byte(&Image[i*2+j]);
|
||||
for(k=0;k<2;k++)
|
||||
{
|
||||
temp2 = temp1&0xC0 ;
|
||||
if(temp2 == 0xC0)
|
||||
temp3 |= 0x00;//white
|
||||
else if(temp2 == 0x00)
|
||||
temp3 |= 0x01; //black
|
||||
else if(temp2 == 0x80)
|
||||
temp3 |= 0x00; //gray1
|
||||
else //0x40
|
||||
temp3 |= 0x01; //gray2
|
||||
temp3 <<= 1;
|
||||
|
||||
temp1 <<= 2;
|
||||
temp2 = temp1&0xC0 ;
|
||||
if(temp2 == 0xC0) //white
|
||||
temp3 |= 0x00;
|
||||
else if(temp2 == 0x00) //black
|
||||
temp3 |= 0x01;
|
||||
else if(temp2 == 0x80)
|
||||
temp3 |= 0x00; //gray1
|
||||
else //0x40
|
||||
temp3 |= 0x01; //gray2
|
||||
if(j!=1 || k!=1)
|
||||
temp3 <<= 1;
|
||||
|
||||
temp1 <<= 2;
|
||||
}
|
||||
|
||||
}
|
||||
SendData(temp3);
|
||||
}
|
||||
|
||||
DisplayFrame();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: update the display
|
||||
* there are 2 memory areas embedded in the e-paper display
|
||||
* but once this function is called,
|
||||
* the the next action of SetFrameMemory or ClearFrame will
|
||||
* set the other memory area.
|
||||
*/
|
||||
void Epd::DisplayFrame(void) {
|
||||
SendCommand(0x22);
|
||||
SendData(0xc7);
|
||||
SendCommand(0x20);
|
||||
WaitUntilIdle();
|
||||
}
|
||||
|
||||
void Epd::DisplayFrame_Partial(void) {
|
||||
SendCommand(0x22);
|
||||
SendData(0x0F);
|
||||
SendCommand(0x20);
|
||||
WaitUntilIdle();
|
||||
}
|
||||
|
||||
void Epd::SetLut(unsigned char *lut) {
|
||||
unsigned char count;
|
||||
SendCommand(0x32);
|
||||
for(count=0; count<153; count++)
|
||||
SendData(lut[count]);
|
||||
WaitUntilIdle();
|
||||
}
|
||||
|
||||
void Epd::SetLut_by_host(unsigned char *lut) {
|
||||
SetLut((unsigned char *)lut);
|
||||
SendCommand(0x3f);
|
||||
SendData(*(lut+153));
|
||||
SendCommand(0x03); // gate voltage
|
||||
SendData(*(lut+154));
|
||||
SendCommand(0x04); // source voltage
|
||||
SendData(*(lut+155)); // VSH
|
||||
SendData(*(lut+156)); // VSH2
|
||||
SendData(*(lut+157)); // VSL
|
||||
SendCommand(0x2c); // VCOM
|
||||
SendData(*(lut+158));
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: private function to specify the memory area for data R/W
|
||||
*/
|
||||
void Epd::SetMemoryArea(int x_start, int y_start, int x_end, int y_end) {
|
||||
SendCommand(0x44);
|
||||
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
|
||||
SendData((x_start >> 3) & 0xFF);
|
||||
SendData((x_end >> 3) & 0xFF);
|
||||
SendCommand(0x45);
|
||||
SendData(y_start & 0xFF);
|
||||
SendData((y_start >> 8) & 0xFF);
|
||||
SendData(y_end & 0xFF);
|
||||
SendData((y_end >> 8) & 0xFF);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief: private function to specify the start point for data R/W
|
||||
*/
|
||||
void Epd::SetMemoryPointer(int x, int y) {
|
||||
SendCommand(0x4E);
|
||||
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
|
||||
SendData((x >> 3) & 0xFF);
|
||||
SendCommand(0x4F);
|
||||
SendData(y & 0xFF);
|
||||
SendData((y >> 8) & 0xFF);
|
||||
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.
|
||||
* You can use Epd::Init() to awaken
|
||||
*/
|
||||
void Epd::Sleep() {
|
||||
SendCommand(0x10);
|
||||
SendData(0x01);
|
||||
// WaitUntilIdle();
|
||||
}
|
||||
|
||||
/* END OF FILE */
|
||||
Loading…
Add table
Add a link
Reference in a new issue