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waveshareteam-e-Paper/STM32/STM32-F103ZET6/User/e-Paper/EPD_2in7_V2.c

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/*****************************************************************************
* | File : EPD_2in7_V2.c
* | Author : Waveshare team
* | Function : 2.7inch V2 e-paper
* | Info :
*----------------
* | This version: V1.0
* | Date : 2022-08-18
* | 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 "EPD_2in7_V2.h"
#include "Debug.h"
UBYTE LUT_DATA_4Gray[159] =
{
0x40, 0x48, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x8, 0x48, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x2, 0x48, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x20, 0x48, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xA, 0x19, 0x0, 0x3, 0x8, 0x0, 0x0,
0x14, 0x1, 0x0, 0x14, 0x1, 0x0, 0x3,
0xA, 0x3, 0x0, 0x8, 0x19, 0x0, 0x0,
0x1, 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, 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, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x0, 0x0, 0x0,
0x22, 0x17, 0x41, 0x0, 0x32, 0x1C
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_2IN7_V2_Reset(void)
{
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(20);
DEV_Digital_Write(EPD_RST_PIN, 0);
DEV_Delay_ms(2);
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(20);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_2IN7_V2_SendCommand(UBYTE Reg)
{
DEV_Digital_Write(EPD_DC_PIN, 0);
DEV_Digital_Write(EPD_CS_PIN, 0);
DEV_SPI_WriteByte(Reg);
DEV_Digital_Write(EPD_CS_PIN, 1);
}
/******************************************************************************
function : send data
parameter:
Data : Write data
******************************************************************************/
static void EPD_2IN7_V2_SendData(UBYTE Data)
{
DEV_Digital_Write(EPD_DC_PIN, 1);
DEV_Digital_Write(EPD_CS_PIN, 0);
DEV_SPI_WriteByte(Data);
DEV_Digital_Write(EPD_CS_PIN, 1);
}
/******************************************************************************
function : Wait until the busy_pin goes LOW
parameter:
******************************************************************************/
static void EPD_2IN7_V2_ReadBusy(void)
{
Debug("e-Paper busy\r\n");
do {
if(DEV_Digital_Read(EPD_BUSY_PIN) == 0)
break;
} while(1);
DEV_Delay_ms(20);
Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function : Turn on display
parameter:
******************************************************************************/
static void EPD_2IN7_V2_TurnOnDisplay(void)
{
EPD_2IN7_V2_SendCommand(0x22); //Display Update Control
EPD_2IN7_V2_SendData(0xF7);
EPD_2IN7_V2_SendCommand(0x20); //Activate Display Update Sequence
EPD_2IN7_V2_ReadBusy();
}
static void EPD_2IN7_V2_TurnOnDisplay_Fast(void)
{
EPD_2IN7_V2_SendCommand(0x22); //Display Update Control
EPD_2IN7_V2_SendData(0xC7);
EPD_2IN7_V2_SendCommand(0x20); //Activate Display Update Sequence
EPD_2IN7_V2_ReadBusy();
}
static void EPD_2IN7_V2_TurnOnDisplay_Partial(void)
{
EPD_2IN7_V2_SendCommand(0x22);
EPD_2IN7_V2_SendData(0xFF);
EPD_2IN7_V2_SendCommand(0x20);
EPD_2IN7_V2_ReadBusy();
}
static void EPD_2IN7_V2_TurnOnDisplay_4GRAY(void)
{
EPD_2IN7_V2_SendCommand(0x22);
EPD_2IN7_V2_SendData(0xC7);
EPD_2IN7_V2_SendCommand(0x20);
EPD_2IN7_V2_ReadBusy();
}
/******************************************************************************
function : set the look-up tables
parameter:
******************************************************************************/
static void EPD_2IN7_V2_Lut(void)
{
unsigned int count;
EPD_2IN7_V2_SendCommand(0x32); //vcom
for(count = 0; count < 153; count++) {
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[count]);
}
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_2IN7_V2_Init(void)
{
EPD_2IN7_V2_Reset();
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x12); //SWRESET
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x45); //set Ram-Y address start/end position
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x07); //0x0107-->(263+1)=264
EPD_2IN7_V2_SendData(0x01);
EPD_2IN7_V2_SendCommand(0x4F); // set RAM y address count to 0;
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendCommand(0x11); // data entry mode
EPD_2IN7_V2_SendData(0x03);
}
void EPD_2IN7_V2_Init_Fast(void)
{
EPD_2IN7_V2_Reset();
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x12); //SWRESET
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x18); //Read built-in temperature sensor
EPD_2IN7_V2_SendData(0x80);
EPD_2IN7_V2_SendCommand(0x22); // Load temperature value
EPD_2IN7_V2_SendData(0xB1);
EPD_2IN7_V2_SendCommand(0x20);
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x1A); // Write to temperature register
EPD_2IN7_V2_SendData(0x64);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendCommand(0x45); //set Ram-Y address start/end position
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x07); //0x0107-->(263+1)=264
EPD_2IN7_V2_SendData(0x01);
EPD_2IN7_V2_SendCommand(0x4F); // set RAM y address count to 0;
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendCommand(0x11); // data entry mode
EPD_2IN7_V2_SendData(0x03);
EPD_2IN7_V2_SendCommand(0x22); // Load temperature value
EPD_2IN7_V2_SendData(0x91);
EPD_2IN7_V2_SendCommand(0x20);
EPD_2IN7_V2_ReadBusy();
}
void EPD_2IN7_V2_Init_4GRAY(void)
{
EPD_2IN7_V2_Reset();
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x12); // soft reset
EPD_2IN7_V2_ReadBusy();
EPD_2IN7_V2_SendCommand(0x74); //set analog block control
EPD_2IN7_V2_SendData(0x54);
EPD_2IN7_V2_SendCommand(0x7E); //set digital block control
EPD_2IN7_V2_SendData(0x3B);
EPD_2IN7_V2_SendCommand(0x01); //Driver output control
EPD_2IN7_V2_SendData(0x07);
EPD_2IN7_V2_SendData(0x01);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendCommand(0x11); //data entry mode
EPD_2IN7_V2_SendData(0x03);
EPD_2IN7_V2_SendCommand(0x44); //set Ram-X address start/end position
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x15); //0x15-->(21+1)*8=176
EPD_2IN7_V2_SendCommand(0x45); //set Ram-Y address start/end position
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x07);//0x0107-->(263+1)=264
EPD_2IN7_V2_SendData(0x01);
EPD_2IN7_V2_SendCommand(0x3C); //BorderWavefrom
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendCommand(0x2C); //VCOM Voltage
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[158]); //0x1C
EPD_2IN7_V2_SendCommand(0x3F); //EOPQ
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[153]);
EPD_2IN7_V2_SendCommand(0x03); //VGH
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[154]);
EPD_2IN7_V2_SendCommand(0x04); //
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[155]); //VSH1
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[156]); //VSH2
EPD_2IN7_V2_SendData(LUT_DATA_4Gray[157]); //VSL
EPD_2IN7_V2_Lut(); //LUT
EPD_2IN7_V2_SendCommand(0x4E); // set RAM x address count to 0;
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendCommand(0x4F); // set RAM y address count to 0X199;
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_SendData(0x00);
EPD_2IN7_V2_ReadBusy();
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_2IN7_V2_Clear(void)
{
UWORD Width, Height;
Width = (EPD_2IN7_V2_WIDTH % 8 == 0)? (EPD_2IN7_V2_WIDTH / 8 ): (EPD_2IN7_V2_WIDTH / 8 + 1);
Height = EPD_2IN7_V2_HEIGHT;
EPD_2IN7_V2_SendCommand(0x24);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(0XFF);
}
}
EPD_2IN7_V2_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_2IN7_V2_Display(UBYTE *Image)
{
UWORD Width, Height;
Width = (EPD_2IN7_V2_WIDTH % 8 == 0)? (EPD_2IN7_V2_WIDTH / 8 ): (EPD_2IN7_V2_WIDTH / 8 + 1);
Height = EPD_2IN7_V2_HEIGHT;
EPD_2IN7_V2_SendCommand(0x24);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(Image[i + j * Width]);
}
}
EPD_2IN7_V2_TurnOnDisplay();
}
void EPD_2IN7_V2_Display_Fast(UBYTE *Image)
{
UWORD Width, Height;
Width = (EPD_2IN7_V2_WIDTH % 8 == 0)? (EPD_2IN7_V2_WIDTH / 8 ): (EPD_2IN7_V2_WIDTH / 8 + 1);
Height = EPD_2IN7_V2_HEIGHT;
EPD_2IN7_V2_SendCommand(0x24);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(Image[i + j * Width]);
}
}
EPD_2IN7_V2_TurnOnDisplay_Fast();
}
void EPD_2IN7_V2_Display_Base(UBYTE *Image)
{
UWORD Width, Height;
Width = (EPD_2IN7_V2_WIDTH % 8 == 0)? (EPD_2IN7_V2_WIDTH / 8 ): (EPD_2IN7_V2_WIDTH / 8 + 1);
Height = EPD_2IN7_V2_HEIGHT;
EPD_2IN7_V2_SendCommand(0x24); //Write Black and White image to RAM
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(Image[i + j * Width]);
}
}
EPD_2IN7_V2_SendCommand(0x26); //Write Black and White image to RAM
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(Image[i + j * Width]);
}
}
EPD_2IN7_V2_TurnOnDisplay();
}
void EPD_2IN7_V2_Display_Base_color(UBYTE color)
{
UWORD Width, Height;
Width = (EPD_2IN7_V2_WIDTH % 8 == 0)? (EPD_2IN7_V2_WIDTH / 8 ): (EPD_2IN7_V2_WIDTH / 8 + 1);
Height = EPD_2IN7_V2_HEIGHT;
EPD_2IN7_V2_SendCommand(0x24); //Write Black and White image to RAM
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(color);
}
}
EPD_2IN7_V2_SendCommand(0x26); //Write Black and White image to RAM
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7_V2_SendData(color);
}
}
// EPD_2IN7_V2_TurnOnDisplay();
}
void EPD_2IN7_V2_Display_Partial(const UBYTE *Image, UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
{
if((Xstart % 8 + Xend % 8 == 8 && Xstart % 8 > Xend % 8) || Xstart % 8 + Xend % 8 == 0 || (Xend - Xstart)%8 == 0)
{
Xstart = Xstart / 8 ;
Xend = Xend / 8;
}
else
{
Xstart = Xstart / 8 ;
Xend = Xend % 8 == 0 ? Xend / 8 : Xend / 8 + 1;
}
UWORD i, Width;
Width = Xend - Xstart;
UWORD IMAGE_COUNTER = Width * (Yend-Ystart);
Xend -= 1;
Yend -= 1;
//Reset
EPD_2IN7_V2_Reset();
EPD_2IN7_V2_SendCommand(0x3C); //BorderWavefrom
EPD_2IN7_V2_SendData(0x80);
//
EPD_2IN7_V2_SendCommand(0x44); // set RAM x address start/end, in page 35
EPD_2IN7_V2_SendData(Xstart & 0xff); // RAM x address start at 00h;
EPD_2IN7_V2_SendData(Xend & 0xff); // RAM x address end at 0fh(15+1)*8->128
EPD_2IN7_V2_SendCommand(0x45); // set RAM y address start/end, in page 35
EPD_2IN7_V2_SendData(Ystart & 0xff); // RAM y address start at 0127h;
EPD_2IN7_V2_SendData((Ystart>>8) & 0x01); // RAM y address start at 0127h;
EPD_2IN7_V2_SendData(Yend & 0xff); // RAM y address end at 00h;
EPD_2IN7_V2_SendData((Yend>>8) & 0x01);
EPD_2IN7_V2_SendCommand(0x4E); // set RAM x address count to 0;
EPD_2IN7_V2_SendData(Xstart & 0xff);
EPD_2IN7_V2_SendCommand(0x4F); // set RAM y address count to 0X127;
EPD_2IN7_V2_SendData(Ystart & 0xff);
EPD_2IN7_V2_SendData((Ystart>>8) & 0x01);
EPD_2IN7_V2_SendCommand(0x24); //Write Black and White image to RAM
for (i = 0; i < IMAGE_COUNTER; i++) {
EPD_2IN7_V2_SendData(Image[i]);
}
EPD_2IN7_V2_TurnOnDisplay_Partial();
}
void EPD_2IN7_V2_4GrayDisplay(UBYTE *Image)
{
UDOUBLE i,j,k;
UBYTE temp1,temp2,temp3;
// old data
EPD_2IN7_V2_SendCommand(0x24);
for(i=0; i<5808; i++) { //5808*4 46464
temp3=0;
for(j=0; j<2; j++) {
temp1 = Image[i*2+j];
for(k=0; k<2; k++) {
temp2 = temp1&0xC0;
if(temp2 == 0xC0)
temp3 |= 0x00;
else if(temp2 == 0x00)
temp3 |= 0x01;
else if(temp2 == 0x80)
temp3 |= 0x01;
else //0x40
temp3 |= 0x00;
temp3 <<= 1;
temp1 <<= 2;
temp2 = temp1&0xC0 ;
if(temp2 == 0xC0)
temp3 |= 0x00;
else if(temp2 == 0x00)
temp3 |= 0x01;
else if(temp2 == 0x80)
temp3 |= 0x01;
else //0x40
temp3 |= 0x00;
if(j!=1 || k!=1)
temp3 <<= 1;
temp1 <<= 2;
}
}
EPD_2IN7_V2_SendData(temp3);
// printf("%x",temp3);
}
EPD_2IN7_V2_SendCommand(0x26); //write RAM for black(0)/white (1)
for(i=0; i<5808; i++) { //5808*4 46464
temp3=0;
for(j=0; j<2; j++) {
temp1 = 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;
}
}
EPD_2IN7_V2_SendData(temp3);
// printf("%x",temp3);
}
EPD_2IN7_V2_TurnOnDisplay_4GRAY();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_2IN7_V2_Sleep(void)
{
EPD_2IN7_V2_SendCommand(0X10);
EPD_2IN7_V2_SendData(0x01);
}
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