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py32f0-template/Libraries/EPaper/Lib/EPD_7in5bc.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_7IN5BC.h
* | Author : Waveshare team
* | Function : 7.5inch e-paper b&c
* | Info :
* | This version: V3.0
* | Date : 2019-06-13
* | Info :
* -----------------------------------------------------------------------------
* V3.0(2019-06-13):
* 1.Change:
* EPD_Reset() => EPD_7IN5BC_Reset()
* EPD_SendCommand() => EPD_7IN5BC_SendCommand()
* EPD_SendData() => EPD_7IN5BC_SendData()
* EPD_WaitUntilIdle() => EPD_7IN5BC_ReadBusy()
* EPD_Init() => EPD_7IN5BC_Init()
* EPD_Clear() => EPD_7IN5BC_Clear()
* EPD_Display() => EPD_7IN5BC_Display()
* EPD_Sleep() => EPD_7IN5BC_Sleep()
* 2.Remove:
* #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 IMAGE_PROCESS 0x13
* #define LUT_FOR_VCOM 0x20
* #define LUT_BLUE 0x21
* #define LUT_WHITE 0x22
* #define LUT_GRAY_1 0x23
* #define LUT_GRAY_2 0x24
* #define LUT_RED_0 0x25
* #define LUT_RED_1 0x26
* #define LUT_RED_2 0x27
* #define LUT_RED_3 0x28
* #define LUT_XON 0x29
* #define PLL_CONTROL 0x30
* #define TEMPERATURE_SENSOR_COMMAND 0x40
* #define TEMPERATURE_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 SPI_FLASH_CONTROL 0x65
* #define REVISION 0x70
* #define GET_STATUS 0x71
* #define AUTO_MEASUREMENT_VCOM 0x80
* #define READ_VCOM_VALUE 0x81
* #define VCM_DC_SETTING 0x82
* 3.add:
* EPD_7IN5BC_DisplayHalfScreen()
* -----------------------------------------------------------------------------
* V2.0(2018-11-09):
* 1.Remove:ImageBuff[EPD_HEIGHT * EPD_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_7in5bc.h"
#ifdef EPD_7IN5BC
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_7IN5BC_Reset(void)
{
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(200);
EPD_Digital_Write(EPD_RST_PIN, 0);
EPD_Delay_ms(2);
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_7IN5BC_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_7IN5BC_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_7IN5BC_ReadBusy(void)
{
UBYTE busy;
EPD_Printf("e-Paper busy\r\n");
do {
EPD_7IN5BC_SendCommand(0x71);
busy = EPD_Digital_Read(EPD_BUSY_PIN);
busy =!(busy & 0x01);
} while(busy);
EPD_Printf("e-Paper busy release\r\n");
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
static void EPD_7IN5BC_TurnOnDisplay(void)
{
EPD_7IN5BC_SendCommand(0x04); // POWER ON
EPD_7IN5BC_ReadBusy();
EPD_7IN5BC_SendCommand(0x12); // display refresh
EPD_Delay_ms(100);
EPD_7IN5BC_ReadBusy();
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_7IN5BC_Init(void)
{
EPD_7IN5BC_Reset();
EPD_7IN5BC_SendCommand(0x01); // POWER_SETTING
EPD_7IN5BC_SendData(0x37);
EPD_7IN5BC_SendData(0x00);
EPD_7IN5BC_SendCommand(0x00); // PANEL_SETTING
EPD_7IN5BC_SendData(0xCF);
EPD_7IN5BC_SendData(0x08);
EPD_7IN5BC_SendCommand(0x30); // PLL_CONTROL
EPD_7IN5BC_SendData(0x3A); // PLL: 0-15:0x3C, 15+:0x3A
EPD_7IN5BC_SendCommand(0x82); // VCM_DC_SETTING
EPD_7IN5BC_SendData(0x28); //all temperature range
EPD_7IN5BC_SendCommand(0x06); // BOOSTER_SOFT_START
EPD_7IN5BC_SendData (0xc7);
EPD_7IN5BC_SendData (0xcc);
EPD_7IN5BC_SendData (0x15);
EPD_7IN5BC_SendCommand(0x50); // VCOM AND DATA INTERVAL SETTING
EPD_7IN5BC_SendData(0x77);
EPD_7IN5BC_SendCommand(0x60); // TCON_SETTING
EPD_7IN5BC_SendData(0x22);
EPD_7IN5BC_SendCommand(0x65); // FLASH CONTROL
EPD_7IN5BC_SendData(0x00);
EPD_7IN5BC_SendCommand(0x61); // TCON_RESOLUTION
EPD_7IN5BC_SendData(EPD_7IN5BC_WIDTH >> 8); // source 640
EPD_7IN5BC_SendData(EPD_7IN5BC_WIDTH & 0xff);
EPD_7IN5BC_SendData(EPD_7IN5BC_HEIGHT >> 8); // gate 384
EPD_7IN5BC_SendData(EPD_7IN5BC_HEIGHT & 0xff);
EPD_7IN5BC_SendCommand(0xe5); // FLASH MODE
EPD_7IN5BC_SendData(0x03);
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_7IN5BC_Clear(void)
{
UWORD Width, Height;
Width = (EPD_7IN5BC_WIDTH % 8 == 0)? (EPD_7IN5BC_WIDTH / 8): (EPD_7IN5BC_WIDTH / 8 + 1);
Height = EPD_7IN5BC_HEIGHT;
EPD_7IN5BC_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
for(UBYTE k = 0; k < 4; k++) {
EPD_7IN5BC_SendData(0x33);
}
}
}
EPD_7IN5BC_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_7IN5BC_Display(const UBYTE *blackimage, const UBYTE *ryimage)
{
UBYTE Data_Black, Data_RY, Data;
UDOUBLE i, j, Width, Height;
Width = (EPD_7IN5BC_WIDTH % 8 == 0)? (EPD_7IN5BC_WIDTH / 8 ): (EPD_7IN5BC_WIDTH / 8 + 1);
Height = EPD_7IN5BC_HEIGHT;
EPD_7IN5BC_SendCommand(0x10);
for (j = 0; j < Height; j++) {
for (i = 0; i < Width; i++) {
Data_Black = blackimage[i + j * Width];
Data_RY = ryimage[i + j * Width]; // red or yellow
for(UBYTE k = 0; k < 8; k++) {
if ((Data_RY & 0x80) == 0x00) {
Data = 0x04; //red
} else if ((Data_Black & 0x80) == 0x00) {
Data = 0x00; //black
} else {
Data = 0x03; //white
}
Data = (Data << 4) & 0xFF;
Data_Black = (Data_Black << 1) & 0xFF;
Data_RY = (Data_RY << 1) & 0xFF;
k += 1;
if((Data_RY & 0x80) == 0x00) {
Data |= 0x04; //red
} else if ((Data_Black & 0x80) == 0x00) {
Data |= 0x00; //black
} else {
Data |= 0x03; //white
}
Data_Black = (Data_Black << 1) & 0xFF;
Data_RY = (Data_RY << 1) & 0xFF;
EPD_7IN5BC_SendData(Data);
}
}
}
EPD_7IN5BC_TurnOnDisplay();
}
void EPD_7IN5BC_DisplayHalfScreen(const UBYTE *blackimage, const UBYTE *ryimage)
{
UBYTE Data_Black, Data_RY, Data;
UDOUBLE i, j, Width, Height;
Width = (EPD_7IN5BC_WIDTH % 8 == 0)? (EPD_7IN5BC_WIDTH / 8 ): (EPD_7IN5BC_WIDTH / 8 + 1);
Height = EPD_7IN5BC_HEIGHT;
EPD_7IN5BC_SendCommand(0x10);
for (j = 0; j < Height / 2; j++) {
for (i = 0; i < Width; i++) {
Data_Black = blackimage[i + j * Width];
Data_RY = ryimage[i + j * Width]; // red or yellow
for(UBYTE k = 0; k < 8; k++) {
if ((Data_RY & 0x80) == 0x00) {
Data = 0x04; //red
} else if ((Data_Black & 0x80) == 0x00) {
Data = 0x00; //black
} else {
Data = 0x03; //white
}
Data = (Data << 4) & 0xFF;
Data_Black = (Data_Black << 1) & 0xFF;
Data_RY = (Data_RY << 1) & 0xFF;
k += 1;
if((Data_RY & 0x80) == 0x00) {
Data |= 0x04; //red
} else if ((Data_Black & 0x80) == 0x00) {
Data |= 0x00; //black
} else {
Data |= 0x03; //white
}
Data_Black = (Data_Black << 1) & 0xFF;
Data_RY = (Data_RY << 1) & 0xFF;
EPD_7IN5BC_SendData(Data);
}
}
}
for (j = 0; j < Height / 2; j++) {
for (i = 0; i < Width; i++) {
for(UBYTE k = 0; k < 4; k++) {
EPD_7IN5BC_SendData(Data);
}
}
}
EPD_7IN5BC_TurnOnDisplay();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_7IN5BC_Sleep(void)
{
EPD_7IN5BC_SendCommand(0x02); // POWER_OFF
EPD_7IN5BC_ReadBusy();
EPD_7IN5BC_SendCommand(0x07); // DEEP_SLEEP
EPD_7IN5BC_SendData(0XA5);
}
#endif
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