e-paper-display/bcm2835-1.71/e-Paper/Arduino/epd7in5_V2/epd7in5_V2.cpp

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/**
* @filename : epd7in5.cpp
* @brief : Implements for e-paper library
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare August 10 2017
*
* 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 "epd7in5_V2.h"
unsigned char Voltage_Frame_7IN5_V2[]={
0x6, 0x3F, 0x3F, 0x11, 0x24, 0x7, 0x17,
};
unsigned char LUT_VCOM_7IN5_V2[]={
0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0xF, 0x1, 0xF, 0x1, 0x2,
0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
};
unsigned char LUT_WW_7IN5_V2[]={
0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x20, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
};
unsigned char LUT_BW_7IN5_V2[]={
0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x20, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
};
unsigned char LUT_WB_7IN5_V2[]={
0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x40, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
};
unsigned char LUT_BB_7IN5_V2[]={
0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x40, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
};
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;
};
int Epd::Init(void) {
if (IfInit() != 0) {
return -1;
}
Reset();
// SendCommand(0x01);
// SendData(0x07);
// SendData(0x07);
// SendData(0x3f);
// SendData(0x3f);
// SendCommand(0x04);
// DelayMs(100);
// WaitUntilIdle();
// SendCommand(0X00); //PANNEL SETTING
// SendData(0x1F); //KW-3f KWR-2F BWROTP 0f BWOTP 1f
// SendCommand(0x61); //tres
// SendData(0x03); //source 800
// SendData(0x20);
// SendData(0x01); //gate 480
// SendData(0xE0);
// SendCommand(0X15);
// SendData(0x00);
// SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
// SendData(0x10);
// SendData(0x07);
// SendCommand(0X60); //TCON SETTING
// SendData(0x22);
SendCommand(0x01); // power setting
SendData(0x17); // 1-0=11: internal power
SendData(*(Voltage_Frame_7IN5_V2+6)); // VGH&VGL
SendData(*(Voltage_Frame_7IN5_V2+1)); // VSH
SendData(*(Voltage_Frame_7IN5_V2+2)); // VSL
SendData(*(Voltage_Frame_7IN5_V2+3)); // VSHR
SendCommand(0x82); // VCOM DC Setting
SendData(*(Voltage_Frame_7IN5_V2+4)); // VCOM
SendCommand(0x06); // Booster Setting
SendData(0x27);
SendData(0x27);
SendData(0x2F);
SendData(0x17);
SendCommand(0x30); // OSC Setting
SendData(*(Voltage_Frame_7IN5_V2+0)); // 2-0=100: N=4 ; 5-3=111: M=7 ; 3C=50Hz 3A=100HZ
SendCommand(0x04); //POWER ON
DelayMs(100);
WaitUntilIdle();
SendCommand(0X00); //PANNEL SETTING
SendData(0x3F); //KW-3f KWR-2F BWROTP 0f BWOTP 1f
SendCommand(0x61); //tres
SendData(0x03); //source 800
SendData(0x20);
SendData(0x01); //gate 480
SendData(0xE0);
SendCommand(0X15);
SendData(0x00);
SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
SendData(0x10);
SendData(0x00);
SendCommand(0X60); //TCON SETTING
SendData(0x22);
SendCommand(0x65); // Resolution setting
SendData(0x00);
SendData(0x00);//800*480
SendData(0x00);
SendData(0x00);
SetLut_by_host(LUT_VCOM_7IN5_V2, LUT_WW_7IN5_V2, LUT_BW_7IN5_V2, LUT_WB_7IN5_V2, LUT_BB_7IN5_V2);
return 0;
}
/**
* @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) {
unsigned char busy;
Serial.print("e-Paper Busy\r\n ");
do{
SendCommand(0x71);
busy = DigitalRead(busy_pin);
}while(busy == 0);
Serial.print("e-Paper Busy Release\r\n ");
DelayMs(20);
}
/**
* @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(4);
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
}
void Epd::DisplayFrame(const unsigned char* frame_buffer) {
SendCommand(0x13);
for (unsigned long j = 0; j < height; j++) {
for (unsigned long i = 0; i < width/8; i++) {
SendData(~frame_buffer[i + j * width/8]);
}
}
SendCommand(0x12);
DelayMs(100);
WaitUntilIdle();
}
void Epd::Displaypart(const unsigned char* pbuffer, unsigned long xStart, unsigned long yStart,unsigned long Picture_Width,unsigned long Picture_Height) {
SendCommand(0x13);
// xStart = xStart/8;
// xStart = xStart*8;
for (unsigned long j = 0; j < height; j++) {
for (unsigned long i = 0; i < width/8; i++) {
if( (j>=yStart) && (j<yStart+Picture_Height) && (i*8>=xStart) && (i*8<xStart+Picture_Width)){
SendData(~(pgm_read_byte(&(pbuffer[i-xStart/8 + (Picture_Width)/8*(j-yStart)]))) );
// SendData(0xff);
}else {
SendData(0x00);
}
}
}
SendCommand(0x12);
DelayMs(100);
WaitUntilIdle();
}
void Epd::SetLut_by_host(unsigned char* lut_vcom, unsigned char* lut_ww, unsigned char* lut_bw, unsigned char* lut_wb, unsigned char* lut_bb)
{
unsigned char count;
SendCommand(0x20); //VCOM
for(count=0; count<42; count++)
SendData(lut_vcom[count]);
SendCommand(0x21); //LUTBW
for(count=0; count<42; count++)
SendData(lut_ww[count]);
SendCommand(0x22); //LUTBW
for(count=0; count<42; count++)
SendData(lut_bw[count]);
SendCommand(0x23); //LUTWB
for(count=0; count<42; count++)
SendData(lut_wb[count]);
SendCommand(0x24); //LUTBB
for(count=0; count<42; count++)
SendData(lut_bb[count]);
}
/**
* @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_Reset() to awaken
*/
void Epd::Sleep(void) {
SendCommand(0X02);
WaitUntilIdle();
SendCommand(0X07);
SendData(0xA5);
}
void Epd::Clear(void) {
// SendCommand(0x10);
// for(unsigned long i=0; i<height*width; i++) {
// SendData(0x00);
// }
SendCommand(0x13);
for(unsigned long i=0; i<height*width; i++) {
SendData(0x00);
}
SendCommand(0x12);
DelayMs(100);
WaitUntilIdle();
}
/* END OF FILE */