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py32f0-template/Libraries/EPaper/Lib/EPD_2in9d.c
IOsetting f879eebe17 feat: lib and demo of waveshare e-paper
2023-03-10 02:20:01 +08:00

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/*****************************************************************************
* | File : EPD_2in9d.c
* | Author : Waveshare team
* | Function : 2.9inch e-paper d
* | Info :
*----------------
* | This version: V3.1
* | Date : 2021-03-18
* | Info :
* -----------------------------------------------------------------------------
* V3.0(2019-06-12):
* 1.Change:
* lut_vcomDC[] => EPD_2IN9D_lut_vcomDC[]
* lut_ww[] => EPD_2IN9D_lut_ww[]
* lut_bw[] => EPD_2IN9D_lut_bw[]
* lut_wb[] => EPD_2IN9D_lut_wb[]
* lut_bb[] => EPD_2IN9D_lut_bb[]
* lut_vcom1[] => EPD_2IN9D_lut_vcom1[]
* lut_ww1[] => EPD_2IN9D_lut_ww1[]
* lut_bw1[] => EPD_2IN9D_lut_bw1[]
* lut_wb1[] => EPD_2IN9D_lut_wb1[]
* lut_bb1[] => EPD_2IN9D_lut_bb1[]
* EPD_Reset() => EPD_2IN9D_Reset()
* EPD_SendCommand() => EPD_2IN9D_SendCommand()
* EPD_SendData() => EPD_2IN9D_SendData()
* EPD_WaitUntilIdle() => EPD_2IN9D_ReadBusy()
* EPD_SetFullReg() => EPD_2IN9D_SetFullReg()
* EPD_SetPartReg() => EPD_2IN9D_SetPartReg()
* EPD_TurnOnDisplay() => EPD_2IN9D_TurnOnDisplay()
* EPD_Init() => EPD_2IN9D_Init()
* EPD_Clear() => EPD_2IN9D_Clear()
* EPD_Display() => EPD_2IN9D_Display()
* EPD_Sleep() => EPD_2IN9D_Sleep()
*
# 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_2in9d.h"
#ifdef EPD_2IN9D
/**
* partial screen update LUT
**/
const unsigned char EPD_2IN9D_lut_vcom1[] = {
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
,0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_ww1[] = {
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_bw1[] = {
0x80, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_wb1[] = {
0x40, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const unsigned char EPD_2IN9D_lut_bb1[] = {
0x00, 0x19, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_2IN9D_Reset(void)
{
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(20);
EPD_Digital_Write(EPD_RST_PIN, 0);
EPD_Delay_ms(2);
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(20);
EPD_Digital_Write(EPD_RST_PIN, 0);
EPD_Delay_ms(2);
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(20);
EPD_Digital_Write(EPD_RST_PIN, 0);
EPD_Delay_ms(2);
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(20);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_2IN9D_SendCommand(UBYTE Reg)
{
EPD_Digital_Write(EPD_DC_PIN, 0);
EPD_Digital_Write(EPD_CS_PIN, 0);
EPD_SPI_WriteByte(Reg);
EPD_Digital_Write(EPD_CS_PIN, 1);
}
/******************************************************************************
function : send data
parameter:
Data : Write data
******************************************************************************/
static void EPD_2IN9D_SendData(UBYTE Data)
{
EPD_Digital_Write(EPD_DC_PIN, 1);
EPD_Digital_Write(EPD_CS_PIN, 0);
EPD_SPI_WriteByte(Data);
EPD_Digital_Write(EPD_CS_PIN, 1);
}
/******************************************************************************
function : Wait until the busy_pin goes LOW
parameter:
******************************************************************************/
void EPD_2IN9D_ReadBusy(void)
{
EPD_Printf("e-Paper busy\r\n");
UBYTE busy;
do {
EPD_2IN9D_SendCommand(0x71);
busy = EPD_Digital_Read(EPD_BUSY_PIN);
busy =!(busy & 0x01);
} while(busy);
EPD_Delay_ms(20);
EPD_Printf("e-Paper busy release\r\n");
}
/******************************************************************************
function : LUT download
parameter:
******************************************************************************/
static void EPD_2IN9D_SetPartReg(void)
{
EPD_2IN9D_SendCommand(0x01); //POWER SETTING
EPD_2IN9D_SendData(0x03);
EPD_2IN9D_SendData(0x00);
EPD_2IN9D_SendData(0x2b);
EPD_2IN9D_SendData(0x2b);
EPD_2IN9D_SendData(0x03);
EPD_2IN9D_SendCommand(0x06); //boost soft start
EPD_2IN9D_SendData(0x17); //A
EPD_2IN9D_SendData(0x17); //B
EPD_2IN9D_SendData(0x17); //C
EPD_2IN9D_SendCommand(0x04);
EPD_2IN9D_ReadBusy();
EPD_2IN9D_SendCommand(0x00); //panel setting
EPD_2IN9D_SendData(0xbf); //LUT from OTP，128x296
EPD_2IN9D_SendCommand(0x30); //PLL setting
EPD_2IN9D_SendData(0x3a); // 3a 100HZ 29 150Hz 39 200HZ 31 171HZ
EPD_2IN9D_SendCommand(0x61); //resolution setting
EPD_2IN9D_SendData(EPD_2IN9D_WIDTH);
EPD_2IN9D_SendData((EPD_2IN9D_HEIGHT >> 8) & 0xff);
EPD_2IN9D_SendData(EPD_2IN9D_HEIGHT & 0xff);
EPD_2IN9D_SendCommand(0x82); //vcom_DC setting
EPD_2IN9D_SendData(0x12);
EPD_2IN9D_SendCommand(0X50);
EPD_2IN9D_SendData(0x97);
unsigned int count;
EPD_2IN9D_SendCommand(0x20);
for(count=0; count<44; count++) {
EPD_2IN9D_SendData(EPD_2IN9D_lut_vcom1[count]);
}
EPD_2IN9D_SendCommand(0x21);
for(count=0; count<42; count++) {
EPD_2IN9D_SendData(EPD_2IN9D_lut_ww1[count]);
}
EPD_2IN9D_SendCommand(0x22);
for(count=0; count<42; count++) {
EPD_2IN9D_SendData(EPD_2IN9D_lut_bw1[count]);
}
EPD_2IN9D_SendCommand(0x23);
for(count=0; count<42; count++) {
EPD_2IN9D_SendData(EPD_2IN9D_lut_wb1[count]);
}
EPD_2IN9D_SendCommand(0x24);
for(count=0; count<42; count++) {
EPD_2IN9D_SendData(EPD_2IN9D_lut_bb1[count]);
}
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
static void EPD_2IN9D_TurnOnDisplay(void)
{
EPD_2IN9D_SendCommand(0x12); //DISPLAY REFRESH
EPD_Delay_ms(10); //!!!The delay here is necessary, 200uS at least!!!
EPD_2IN9D_ReadBusy();
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_2IN9D_Init(void)
{
EPD_2IN9D_Reset();
EPD_2IN9D_SendCommand(0x04);
EPD_2IN9D_ReadBusy();//waiting for the electronic paper IC to release the idle signal
EPD_2IN9D_SendCommand(0x00); //panel setting
EPD_2IN9D_SendData(0x1f); //LUT from OTP，KW-BF KWR-AF BWROTP 0f BWOTP 1f
EPD_2IN9D_SendCommand(0x61); //resolution setting
EPD_2IN9D_SendData (0x80);
EPD_2IN9D_SendData (0x01);
EPD_2IN9D_SendData (0x28);
EPD_2IN9D_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
EPD_2IN9D_SendData(0x97); //WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_2IN9D_Clear(void)
{
UWORD Width, Height;
Width = (EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1);
Height = EPD_2IN9D_HEIGHT;
EPD_2IN9D_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9D_SendData(0x00);
}
}
EPD_2IN9D_SendCommand(0x13);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9D_SendData(0xFF);
}
}
EPD_2IN9D_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_2IN9D_Display(UBYTE *Image)
{
UWORD Width, Height;
Width = (EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1);
Height = EPD_2IN9D_HEIGHT;
EPD_2IN9D_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9D_SendData(0x00);
}
}
EPD_2IN9D_SendCommand(0x13);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9D_SendData(Image[i + j * Width]);
}
}
EPD_2IN9D_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_2IN9D_DisplayPart(UBYTE *Image)
{
/* Set partial Windows */
EPD_2IN9D_SetPartReg();
EPD_2IN9D_SendCommand(0x91); //This command makes the display enter partial mode
EPD_2IN9D_SendCommand(0x90); //resolution setting
EPD_2IN9D_SendData(0); //x-start
EPD_2IN9D_SendData(EPD_2IN9D_WIDTH - 1); //x-end
EPD_2IN9D_SendData(0);
EPD_2IN9D_SendData(0); //y-start
EPD_2IN9D_SendData(EPD_2IN9D_HEIGHT / 256);
EPD_2IN9D_SendData(EPD_2IN9D_HEIGHT % 256 - 1); //y-end
EPD_2IN9D_SendData(0x28);
UWORD Width;
Width = (EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1);
/* send data */
EPD_2IN9D_SendCommand(0x13);
for (UWORD j = 0; j < EPD_2IN9D_HEIGHT; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9D_SendData(Image[i + j * Width]);
}
}
/* Set partial refresh */
EPD_2IN9D_TurnOnDisplay();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_2IN9D_Sleep(void)
{
EPD_2IN9D_SendCommand(0X50);
EPD_2IN9D_SendData(0xf7);
EPD_2IN9D_SendCommand(0X02); //power off
EPD_2IN9D_ReadBusy();
EPD_2IN9D_SendCommand(0X07); //deep sleep
EPD_2IN9D_SendData(0xA5);
}
#endif
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