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waveshareteam-e-Paper/RaspberryPi_JetsonNano/c/lib/e-Paper/EPD_2in7b.c
hnwangkg-ezio 04d4621789 2020-12-10
2020-12-11 14:36:30 +08:00

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/*****************************************************************************
* | File : EPD_2in7b.c
* | Author : Waveshare team
* | Function : 2.7inch e-paper b
* | Info :
*----------------
* | This version: V3.0
* | Date : 2019-06-12
* | Info :
* -----------------------------------------------------------------------------
* V3.0(2019-06-12):
* lut_vcom_dc[] => EPD_2in7B_lut_vcom_dc[]
* lut_ww[] => EPD_2in7B_lut_ww[]
* lut_bw[] => EPD_2in7B_lut_bw[]
* lut_bb[] => EPD_2in7B_lut_bb[]
* lut_wb[] => EPD_2in7B_lut_wb[]
* EPD_Reset() => EPD_2in7B_Reset()
* EPD_2IN7B_SendCommand() => EPD_2in7B_SendCommand()
* EPD_2IN7B_SendData() => EPD_2in7B_SendData()
* EPD_2IN7B_ReadBusy() => EPD_2in7B_ReadBusy()
* EPD_SetLut() => EPD_2in7B_SetLut()
* EPD_Init() => EPD_2in7B_Init()
* EPD_Clear() => EPD_2in7B_Clear()
* EPD_Display() => EPD_2in7B_Display()
* EPD_Sleep() => EPD_2in7B_Sleep()
* 2.remove commands define:
* #define PANEL_SETTING 0x00
* #define POWER_SETTING 0x01
* #define POWER_OFF 0x02
* #define POWER_OFF_SEQUENCE_SETTING 0x03
* #define POWER_ON 0x04
* #define POWER_ON_MEASURE 0x05
* #define BOOSTER_SOFT_START 0x06
* #define DEEP_SLEEP 0x07
* #define DATA_START_TRANSMISSION_1 0x10
* #define DATA_STOP 0x11
* #define DISPLAY_REFRESH 0x12
* #define DATA_START_TRANSMISSION_2 0x13
* #define PARTIAL_DATA_START_TRANSMISSION_1 0x14
* #define PARTIAL_DATA_START_TRANSMISSION_2 0x15
* #define PARTIAL_DISPLAY_REFRESH 0x16
* #define LUT_FOR_VCOM 0x20
* #define LUT_WHITE_TO_WHITE 0x21
* #define LUT_BLACK_TO_WHITE 0x22
* #define LUT_WHITE_TO_BLACK 0x23
* #define LUT_BLACK_TO_BLACK 0x24
* #define PLL_CONTROL 0x30
* #define TEMPERATURE_SENSOR_COMMAND 0x40
* #define TEMPERATURE_SENSOR_CALIBRATION 0x41
* #define TEMPERATURE_SENSOR_WRITE 0x42
* #define TEMPERATURE_SENSOR_READ 0x43
* #define VCOM_AND_DATA_INTERVAL_SETTING 0x50
* #define LOW_POWER_DETECTION 0x51
* #define TCON_SETTING 0x60
* #define TCON_RESOLUTION 0x61
* #define SOURCE_AND_GATE_START_SETTING 0x62
* #define GET_STATUS 0x71
* #define AUTO_MEASURE_VCOM 0x80
* #define VCOM_VALUE 0x81
* #define VCM_DC_SETTING_REGISTER 0x82
* #define PROGRAM_MODE 0xA0
* #define ACTIVE_PROGRAM 0xA1
* #define READ_OTP_DATA 0xA2
* -----------------------------------------------------------------------------
* V2.0(2018-10-30):
* 1.Remove:ImageBuff[EPD_2IN7B_HEIGHT * EPD_2IN7B_WIDTH / 8]
* 2.Change:EPD_Display(UBYTE *Image)
* Need to pass parameters: pointer to cached data
#
# 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_2in7b.h"
#include "Debug.h"
static const unsigned char EPD_2IN7B_lut_vcom_dc[] = {
0x00, 0x00,
0x00, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
};
//R21H
static const unsigned char EPD_2IN7B_lut_ww[] = {
0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x40, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x80, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
};
//R22H r
static const unsigned char EPD_2IN7B_lut_bw[] = {
0xA0, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x90, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0xB0, 0x04, 0x10, 0x00, 0x00, 0x05,
0xB0, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0xC0, 0x23, 0x00, 0x00, 0x00, 0x01
};
//R23H w
static const unsigned char EPD_2IN7B_lut_bb[] = {
0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x40, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x80, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
};
//R24H b
static const unsigned char EPD_2IN7B_lut_wb[] = {
0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x20, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x10, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_2IN7B_Reset(void)
{
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
DEV_Digital_Write(EPD_RST_PIN, 0);
DEV_Delay_ms(2);
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_2IN7B_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_2IN7B_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_2IN7B_ReadBusy(void)
{
Debug("e-Paper busy\r\n");
while(DEV_Digital_Read(EPD_BUSY_PIN) == 0) { //0: busy, 1: idle
DEV_Delay_ms(100);
}
Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function : set the look-up tables
parameter:
******************************************************************************/
static void EPD_2IN7B_SetLut(void)
{
unsigned int count;
EPD_2IN7B_SendCommand(0x20); //vcom
for(count = 0; count < 44; count++) {
EPD_2IN7B_SendData(EPD_2IN7B_lut_vcom_dc[count]);
}
EPD_2IN7B_SendCommand(0x21); //ww --
for(count = 0; count < 42; count++) {
EPD_2IN7B_SendData(EPD_2IN7B_lut_ww[count]);
}
EPD_2IN7B_SendCommand(0x22); //bw r
for(count = 0; count < 42; count++) {
EPD_2IN7B_SendData(EPD_2IN7B_lut_bw[count]);
}
EPD_2IN7B_SendCommand(0x23); //wb w
for(count = 0; count < 42; count++) {
EPD_2IN7B_SendData(EPD_2IN7B_lut_bb[count]);
}
EPD_2IN7B_SendCommand(0x24); //bb b
for(count = 0; count < 42; count++) {
EPD_2IN7B_SendData(EPD_2IN7B_lut_wb[count]);
}
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_2IN7B_Init(void)
{
EPD_2IN7B_Reset();
EPD_2IN7B_SendCommand(0x06); //boost soft start
EPD_2IN7B_SendData (0x07); //A
EPD_2IN7B_SendData (0x07); //B
EPD_2IN7B_SendData (0x17); //C
EPD_2IN7B_SendCommand(0x04);
EPD_2IN7B_ReadBusy();//waiting for the electronic paper IC to release the idle signal
EPD_2IN7B_SendCommand(0x00); //panel setting
EPD_2IN7B_SendData(0x0f); //LUT from OTP￡?128x296
EPD_2IN7B_SendCommand(0x16);
EPD_2IN7B_SendData(0x00); //KW-BF KWR-AF BWROTP 0f
EPD_2IN7B_SendCommand(0xF8); //boostéè?¨
EPD_2IN7B_SendData (0x60);
EPD_2IN7B_SendData(0xa5);
EPD_2IN7B_SendCommand(0xF8); //boostéè?¨
EPD_2IN7B_SendData (0x90);
EPD_2IN7B_SendData (0x00);
EPD_2IN7B_SendCommand(0xF8); //boostéè?¨
EPD_2IN7B_SendData (0x93);
EPD_2IN7B_SendData(0x2A);
EPD_2IN7B_SendCommand(0x01); // PANEL_SETTING
EPD_2IN7B_SendData(0x03); // VDS_EN, VDG_EN
EPD_2IN7B_SendData(0x00); // VCOM_HV, VGHL_LV[1], VGHL_LV[0]
EPD_2IN7B_SendData(0x2b); // VDH
EPD_2IN7B_SendData(0x2b); // VDL
EPD_2IN7B_SendData(0x2b); // VDHR
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_2IN7B_Clear(void)
{
UWORD Width, Height;
Width = (EPD_2IN7B_WIDTH % 8 == 0)? (EPD_2IN7B_WIDTH / 8 ): (EPD_2IN7B_WIDTH / 8 + 1);
Height = EPD_2IN7B_HEIGHT;
EPD_2IN7B_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7B_SendData(0X00);
}
}
EPD_2IN7B_SendCommand(0x11); // DATA_STOP
EPD_2IN7B_SendCommand(0x13);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7B_SendData(0X00);
}
}
EPD_2IN7B_SendCommand(0x11); // DATA_STOP
EPD_2IN7B_SendCommand(0x12);
EPD_2IN7B_ReadBusy();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_2IN7B_Display(UBYTE *Imageblack, UBYTE *Imagered)
{
UWORD Width, Height;
Width = (EPD_2IN7B_WIDTH % 8 == 0)? (EPD_2IN7B_WIDTH / 8 ): (EPD_2IN7B_WIDTH / 8 + 1);
Height = EPD_2IN7B_HEIGHT;
EPD_2IN7B_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7B_SendData(~Imageblack[i + j * Width]);
}
}
EPD_2IN7B_SendCommand(0x11); // DATA_STOP
EPD_2IN7B_SendCommand(0x13);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN7B_SendData(~Imagered[i + j * Width]);
}
}
EPD_2IN7B_SendCommand(0x11); // DATA_STOP
EPD_2IN7B_SendCommand(0x12);
EPD_2IN7B_ReadBusy();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_2IN7B_Sleep(void)
{
EPD_2IN7B_SendCommand(0X50);
EPD_2IN7B_SendData(0xf7);
EPD_2IN7B_SendCommand(0X02); //power off
EPD_2IN7B_SendCommand(0X07); //deep sleep
EPD_2IN7B_SendData(0xA5);
}
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