e-paper-display/bcm2835-1.71/e-Paper/Arduino/epd7in3f/epd7in3f.cpp

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/*****************************************************************************
* | File : EPD_7in3f.c
* | Author : Waveshare team
* | Function : 7.3inch e-Paper (F)
* | Info :
*----------------
* | This version: V1.0
* | Date : 2022-10-21
* | 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 <stdlib.h>
#include "epd7in3f.h"
#include "imagedata.h"
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;
};
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
int Epd::Init(void) {
if (IfInit() != 0) {
return -1;
}
Reset();
DelayMs(20);
EPD_7IN3F_BusyHigh();
SendCommand(0xAA); // CMDH
SendData(0x49);
SendData(0x55);
SendData(0x20);
SendData(0x08);
SendData(0x09);
SendData(0x18);
SendCommand(0x01);
SendData(0x3F);
SendData(0x00);
SendData(0x32);
SendData(0x2A);
SendData(0x0E);
SendData(0x2A);
SendCommand(0x00);
SendData(0x5F);
SendData(0x69);
SendCommand(0x03);
SendData(0x00);
SendData(0x54);
SendData(0x00);
SendData(0x44);
SendCommand(0x05);
SendData(0x40);
SendData(0x1F);
SendData(0x1F);
SendData(0x2C);
SendCommand(0x06);
SendData(0x6F);
SendData(0x1F);
SendData(0x1F);
SendData(0x22);
SendCommand(0x08);
SendData(0x6F);
SendData(0x1F);
SendData(0x1F);
SendData(0x22);
SendCommand(0x13); // IPC
SendData(0x00);
SendData(0x04);
SendCommand(0x30);
SendData(0x3C);
SendCommand(0x41); // TSE
SendData(0x00);
SendCommand(0x50);
SendData(0x3F);
SendCommand(0x60);
SendData(0x02);
SendData(0x00);
SendCommand(0x61);
SendData(0x03);
SendData(0x20);
SendData(0x01);
SendData(0xE0);
SendCommand(0x82);
SendData(0x1E);
SendCommand(0x84);
SendData(0x00);
SendCommand(0x86); // AGID
SendData(0x00);
SendCommand(0xE3);
SendData(0x2F);
SendCommand(0xE0); // CCSET
SendData(0x00);
SendCommand(0xE6); // TSSET
SendData(0x00);
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);
}
void Epd::EPD_7IN3F_BusyHigh(void)// If BUSYN=0 then waiting
{
while(!DigitalRead(BUSY_PIN)) {
DelayMs(1);
}
}
/**
* @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(1);
DigitalWrite(reset_pin, HIGH);
DelayMs(20);
}
void Epd::TurnOnDisplay(void) {
SendCommand(0x04); // POWER_ON
EPD_7IN3F_BusyHigh();
SendCommand(0x12); // DISPLAY_REFRESH
SendData(0x00);
EPD_7IN3F_BusyHigh();
SendCommand(0x02); // POWER_OFF
SendData(0x00);
EPD_7IN3F_BusyHigh();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void Epd::EPD_7IN3F_Display(const UBYTE *image) {
unsigned long i,j;
SendCommand(0x10);
for(i=0; i<height; i++) {
for(j=0; j<width/2; j++) {
SendData(image[j + width/2*i]);
}
}
TurnOnDisplay();
}
/******************************************************************************
function : Sends the part image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void Epd::EPD_7IN3F_Display_part(const UBYTE *image, UWORD xstart, UWORD ystart,
UWORD image_width, UWORD image_heigh)
{
unsigned long i,j;
SendCommand(0x10);
for(i=0; i<height; i++) {
for(j=0; j< width/2; j++) {
if(i<image_heigh+ystart && i>=ystart && j<(image_width+xstart)/2 && j>=xstart/2) {
SendData(pgm_read_byte(&image[(j-xstart/2) + (image_width/2*(i-ystart))]));
}
else {
SendData(0x11);
}
}
}
TurnOnDisplay();
}
/******************************************************************************
function : show 7 kind of color block
parameter:
******************************************************************************/
void Epd::EPD_7IN3F_Show7Block(void)
{
unsigned long i, j, k;
unsigned char const Color_seven[8] =
{EPD_7IN3F_BLACK, EPD_7IN3F_BLUE, EPD_7IN3F_GREEN, EPD_7IN3F_ORANGE,
EPD_7IN3F_RED, EPD_7IN3F_YELLOW, EPD_7IN3F_WHITE, EPD_7IN3F_WHITE};
SendCommand(0x10);
for(i=0; i<240; i++) {
for(k = 0 ; k < 4; k ++) {
for(j = 0 ; j < 100; j ++) {
SendData((Color_seven[k]<<4) |Color_seven[k]);
}
}
}
for(i=0; i<240; i++) {
for(k = 4 ; k < 8; k ++) {
for(j = 0 ; j < 100; j ++) {
SendData((Color_seven[k]<<4) |Color_seven[k]);
}
}
}
TurnOnDisplay();
}
/******************************************************************************
function :
Clear screen
******************************************************************************/
void Epd::Clear(UBYTE color) {
SendCommand(0x10);
for(int i=0; i<width/2; i++) {
for(int j=0; j<height; j++) {
SendData((color<<4)|color);
}
}
TurnOnDisplay();
}
/**
* @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
* You can use EPD_Reset() to awaken
*/
void Epd::Sleep(void) {
SendCommand(0x07);
SendData(0xA5);
DelayMs(10);
DigitalWrite(RST_PIN, 0); // Reset
}
/* END OF FILE */