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waveshareteam-e-Paper/STM32/STM32-F103ZET6/User/e-Paper/EPD_3in7.c

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/*****************************************************************************
* | File : EPD_3IN7.C
* | Author : Waveshare team
* | Function : 3.7inch e-paper
* | Info :
*----------------
* | This version: V1.0
* | Date : 2020-07-17
* | 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_3in7.h"
#include "Debug.h"
static const UBYTE lut_4Gray_GC[] =
{
0x2A,0x06,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//1
0x28,0x06,0x14,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//2
0x20,0x06,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//3
0x14,0x06,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//4
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//5
0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x08,0x08,0x02,//6
0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,//7
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//8
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//10
0x22,0x22,0x22,0x22,0x22
};
static const UBYTE lut_1Gray_GC[] =
{
0x2A,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//1
0x05,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//2
0x2A,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//3
0x05,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//4
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//5
0x00,0x02,0x03,0x0A,0x00,0x02,0x06,0x0A,0x05,0x00,//6
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//7
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//8
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//10
0x22,0x22,0x22,0x22,0x22
};
static const UBYTE lut_1Gray_DU[] =
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//1
0x01,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x0A,0x55,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//3
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//5
0x00,0x00,0x05,0x05,0x00,0x05,0x03,0x05,0x05,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//7
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x22,0x22,0x22,0x22,0x22
};
static const UBYTE lut_1Gray_A2[] =
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //1
0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //2
0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //3
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //4
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //5
0x00,0x00,0x03,0x05,0x00,0x00,0x00,0x00,0x00,0x00, //6
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //7
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //8
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, //10
0x22,0x22,0x22,0x22,0x22
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_3IN7_Reset(void)
{
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(300);
DEV_Digital_Write(EPD_RST_PIN, 0);
DEV_Delay_ms(3);
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(300);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_3IN7_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_3IN7_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);
}
static void EPD_3IN7_ReadBusy_HIGH(void)
{
Debug("e-Paper busy\r\n");
UBYTE busy;
do {
busy = DEV_Digital_Read(EPD_BUSY_PIN);
} while(busy);
DEV_Delay_ms(200);
Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function : set the look-up tables
parameter:
******************************************************************************/
void EPD_3IN7_Load_LUT(UBYTE lut)
{
UWORD i;
EPD_3IN7_SendCommand(0x32);
for (i = 0; i < 105; i++)
{
if(lut == 0)
EPD_3IN7_SendData(lut_4Gray_GC[i]);
else if(lut == 1)
EPD_3IN7_SendData(lut_1Gray_GC[i]);
else if(lut == 2)
EPD_3IN7_SendData(lut_1Gray_DU[i]);
else if(lut == 3)
EPD_3IN7_SendData(lut_1Gray_A2[i]);
else
Debug("There is no such lut \r\n");
}
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_3IN7_4Gray_Init(void)
{
EPD_3IN7_Reset();
EPD_3IN7_SendCommand(0x12);
DEV_Delay_ms(300);
EPD_3IN7_SendCommand(0x46);
EPD_3IN7_SendData(0xF7);
EPD_3IN7_ReadBusy_HIGH();
EPD_3IN7_SendCommand(0x47);
EPD_3IN7_SendData(0xF7);
EPD_3IN7_ReadBusy_HIGH();
EPD_3IN7_SendCommand(0x01); // setting gaet number
EPD_3IN7_SendData(0xDF);
EPD_3IN7_SendData(0x01);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x03); // set gate voltage
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x04); // set source voltage
EPD_3IN7_SendData(0x41);
EPD_3IN7_SendData(0xA8);
EPD_3IN7_SendData(0x32);
EPD_3IN7_SendCommand(0x11); // set data entry sequence
EPD_3IN7_SendData(0x03);
EPD_3IN7_SendCommand(0x3C); // set border
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x0C); // set booster strength
EPD_3IN7_SendData(0xAE);
EPD_3IN7_SendData(0xC7);
EPD_3IN7_SendData(0xC3);
EPD_3IN7_SendData(0xC0);
EPD_3IN7_SendData(0xC0);
EPD_3IN7_SendCommand(0x18); // set internal sensor on
EPD_3IN7_SendData(0x80);
EPD_3IN7_SendCommand(0x2C); // set vcom value
EPD_3IN7_SendData(0x44);
EPD_3IN7_SendCommand(0x37); // set display option, these setting turn on previous function
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x44); // setting X direction start/end position of RAM
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x17);
EPD_3IN7_SendData(0x01);
EPD_3IN7_SendCommand(0x45); // setting Y direction start/end position of RAM
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0xDF);
EPD_3IN7_SendData(0x01);
EPD_3IN7_SendCommand(0x22); // Display Update Control 2
EPD_3IN7_SendData(0xCF);
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_3IN7_1Gray_Init(void)
{
EPD_3IN7_Reset();
EPD_3IN7_SendCommand(0x12);
DEV_Delay_ms(300);
EPD_3IN7_SendCommand(0x46);
EPD_3IN7_SendData(0xF7);
EPD_3IN7_ReadBusy_HIGH();
EPD_3IN7_SendCommand(0x47);
EPD_3IN7_SendData(0xF7);
EPD_3IN7_ReadBusy_HIGH();
EPD_3IN7_SendCommand(0x01); // setting gaet number
EPD_3IN7_SendData(0xDF);
EPD_3IN7_SendData(0x01);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x03); // set gate voltage
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x04); // set source voltage
EPD_3IN7_SendData(0x41);
EPD_3IN7_SendData(0xA8);
EPD_3IN7_SendData(0x32);
EPD_3IN7_SendCommand(0x11); // set data entry sequence
EPD_3IN7_SendData(0x03);
EPD_3IN7_SendCommand(0x3C); // set border
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x0C); // set booster strength
EPD_3IN7_SendData(0xAE);
EPD_3IN7_SendData(0xC7);
EPD_3IN7_SendData(0xC3);
EPD_3IN7_SendData(0xC0);
EPD_3IN7_SendData(0xC0);
EPD_3IN7_SendCommand(0x18); // set internal sensor on
EPD_3IN7_SendData(0x80);
EPD_3IN7_SendCommand(0x2C); // set vcom value
EPD_3IN7_SendData(0x44);
EPD_3IN7_SendCommand(0x37); // set display option, these setting turn on previous function
EPD_3IN7_SendData(0x00); //can switch 1 gray or 4 gray
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0x4F);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendData(0xFF);
EPD_3IN7_SendCommand(0x44); // setting X direction start/end position of RAM
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x17);
EPD_3IN7_SendData(0x01);
EPD_3IN7_SendCommand(0x45); // setting Y direction start/end position of RAM
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0xDF);
EPD_3IN7_SendData(0x01);
EPD_3IN7_SendCommand(0x22); // Display Update Control 2
EPD_3IN7_SendData(0xCF);
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_3IN7_4Gray_Clear(void)
{
UWORD Width, Height;
Width = (EPD_3IN7_WIDTH % 8 == 0)? (EPD_3IN7_WIDTH / 8 ): (EPD_3IN7_WIDTH / 8 + 1);
Height = EPD_3IN7_HEIGHT;
EPD_3IN7_SendCommand(0x49);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4E);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4F);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x24);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_3IN7_SendData(0xff);
}
}
EPD_3IN7_SendCommand(0x4E);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4F);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x26);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_3IN7_SendData(0xff);
}
}
EPD_3IN7_Load_LUT(0);
EPD_3IN7_SendCommand(0x22);
EPD_3IN7_SendData(0xC7);
EPD_3IN7_SendCommand(0x20);
EPD_3IN7_ReadBusy_HIGH();
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_3IN7_1Gray_Clear(void)
{
UWORD i;
UWORD IMAGE_COUNTER = EPD_3IN7_WIDTH * EPD_3IN7_HEIGHT / 8;
EPD_3IN7_SendCommand(0x4E);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4F);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x24);
for (i = 0; i < IMAGE_COUNTER; i++)
{
EPD_3IN7_SendData(0xff);
}
EPD_3IN7_Load_LUT(2);
EPD_3IN7_SendCommand(0x20);
EPD_3IN7_ReadBusy_HIGH();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_3IN7_4Gray_Display(const UBYTE *Image)
{
UDOUBLE i,j,k;
UBYTE temp1,temp2,temp3;
EPD_3IN7_SendCommand(0x49);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4E);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4F);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x24);
for(i=0;i<16800;i++){
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 |= 0x01;//white
else if(temp2 == 0x00)
temp3 |= 0x00; //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 |= 0x01;
else if(temp2 == 0x00) //black
temp3 |= 0x00;
else if(temp2 == 0x80)
temp3 |= 0x00; //gray1
else //0x40
temp3 |= 0x01; //gray2
if(j!=1 || k!=1)
temp3 <<= 1;
temp1 <<= 2;
}
}
EPD_3IN7_SendData(temp3);
}
// new data
EPD_3IN7_SendCommand(0x4E);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4F);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x26);
for(i=0; i<16800; i++) {
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 |= 0x01;//white
else if(temp2 == 0x00)
temp3 |= 0x00; //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 |= 0x01;
else if(temp2 == 0x00) //black
temp3 |= 0x00;
else if(temp2 == 0x80)
temp3 |= 0x01; //gray1
else //0x40
temp3 |= 0x00; //gray2
if(j!=1 || k!=1)
temp3 <<= 1;
temp1 <<= 2;
}
}
EPD_3IN7_SendData(temp3);
}
EPD_3IN7_Load_LUT(0);
EPD_3IN7_SendCommand(0x22);
EPD_3IN7_SendData(0xC7);
EPD_3IN7_SendCommand(0x20);
EPD_3IN7_ReadBusy_HIGH();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_3IN7_1Gray_Display(const UBYTE *Image)
{
UWORD i;
UWORD IMAGE_COUNTER = EPD_3IN7_WIDTH * EPD_3IN7_HEIGHT / 8;
EPD_3IN7_SendCommand(0x4E);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x4F);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendData(0x00);
EPD_3IN7_SendCommand(0x24);
for (i = 0; i < IMAGE_COUNTER; i++)
{
EPD_3IN7_SendData(Image[i]);
}
EPD_3IN7_Load_LUT(2);
EPD_3IN7_SendCommand(0x20);
EPD_3IN7_ReadBusy_HIGH();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_3IN7_1Gray_Display_Part(const UBYTE *Image, UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
{
UWORD i, Width;
Width = (Xend-Xstart)%8 == 0 ? (Xend-Xstart)/8 : (Xend-Xstart)/8+1;
UWORD IMAGE_COUNTER = Width * (Yend-Ystart);
EPD_3IN7_SendCommand(0x44);
EPD_3IN7_SendData(Xstart & 0xff);
EPD_3IN7_SendData((Xstart>>8) & 0x03);
EPD_3IN7_SendData(Xend & 0xff);
EPD_3IN7_SendData((Xend>>8) & 0x03);
EPD_3IN7_SendCommand(0x45);
EPD_3IN7_SendData(Ystart & 0xff);
EPD_3IN7_SendData((Ystart>>8) & 0x03);
EPD_3IN7_SendData(Yend & 0xff);
EPD_3IN7_SendData((Yend>>8) & 0x03);
EPD_3IN7_SendCommand(0x24);
for (i = 0; i < IMAGE_COUNTER; i++)
{
EPD_3IN7_SendData(Image[i]);
}
EPD_3IN7_Load_LUT(2);
EPD_3IN7_SendCommand(0x20);
EPD_3IN7_ReadBusy_HIGH();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_3IN7_Sleep(void)
{
EPD_3IN7_SendCommand(0X10); //deep sleep
EPD_3IN7_SendData(0x03);
}
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