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e-paper-display/bcm2835-1.71/e-Paper/STM32/STM32-F103ZET6/User/e-Paper/EPD_2in9bc.c

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/*****************************************************************************
* | File : EPD_2in9bc.c
* | Author : Waveshare team
* | Function : 2.9inch e-paper b&c
* | Info :
*----------------
* | This version: V3.0
* | Date : 2019-06-12
* | Info :
* -----------------------------------------------------------------------------
* V3.0(2019-06-12):
* 1.Change:
* EPD_Reset() => EPD_2IN9BC_Reset()
* EPD_SendCommand() => EPD_2IN9BC_SendCommand()
* EPD_SendData() => EPD_2IN9BC_SendData()
* EPD_WaitUntilIdle() => EPD_2IN9BC_ReadBusy()
* EPD_Init() => EPD_2IN9BC_Init()
* EPD_Clear() => EPD_2IN9BC_Clear()
* EPD_Display() => EPD_2IN9BC_Display()
* EPD_Sleep() => EPD_2IN9BC_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 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 GET_STATUS 0x71
* #define AUTO_MEASURE_VCOM 0x80
* #define VCOM_VALUE 0x81
* #define VCM_DC_SETTING_REGISTER 0x82
* #define PARTIAL_WINDOW 0x90
* #define PARTIAL_IN 0x91
* #define PARTIAL_OUT 0x92
* #define PROGRAM_MODE 0xA0
* #define ACTIVE_PROGRAM 0xA1
* #define READ_OTP_DATA 0xA2
* #define POWER_SAVING 0xE3
* -----------------------------------------------------------------------------
* V2.0(2018-11-06):
* 1.Remove:ImageBuff[EPD_HEIGHT * EPD_WIDTH / 8]
* 2.Change:EPD_Display(UBYTE *Image)
* Need to pass parameters: pointer to cached data
* 3.Change:
* EPD_RST -> EPD_RST_PIN
* EPD_DC -> EPD_DC_PIN
* EPD_CS -> EPD_CS_PIN
* EPD_BUSY -> EPD_BUSY_PIN
#
# 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_2in9bc.h"
#include "Debug.h"
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_2IN9BC_Reset(void)
{
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
DEV_Digital_Write(EPD_RST_PIN, 0);
DEV_Delay_ms(1);
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_2IN9BC_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_2IN9BC_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:
******************************************************************************/
void EPD_2IN9BC_ReadBusy(void)
{
Debug("e-Paper busy\r\n");
while(DEV_Digital_Read(EPD_BUSY_PIN) == 0) { //LOW: idle, HIGH: busy
DEV_Delay_ms(100);
}
Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_2IN9BC_Init(void)
{
EPD_2IN9BC_Reset();
EPD_2IN9BC_SendCommand(0x06); // BOOSTER_SOFT_START
EPD_2IN9BC_SendData(0x17);
EPD_2IN9BC_SendData(0x17);
EPD_2IN9BC_SendData(0x17);
EPD_2IN9BC_SendCommand(0x04); // POWER_ON
EPD_2IN9BC_ReadBusy();
EPD_2IN9BC_SendCommand(0x00); // PANEL_SETTING
EPD_2IN9BC_SendData(0x8F);
EPD_2IN9BC_SendCommand(0x50); // VCOM_AND_DATA_INTERVAL_SETTING
EPD_2IN9BC_SendData(0x77);
EPD_2IN9BC_SendCommand(0x61); // TCON_RESOLUTION
EPD_2IN9BC_SendData(0x80);
EPD_2IN9BC_SendData(0x01);
EPD_2IN9BC_SendData(0x28);
EPD_2IN9BC_SendCommand(0x82); // VCM_DC_SETTING_REGISTER
EPD_2IN9BC_SendData(0X0A);
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_2IN9BC_Clear(void)
{
UWORD Width = (EPD_2IN9BC_WIDTH % 8 == 0)? (EPD_2IN9BC_WIDTH / 8 ): (EPD_2IN9BC_WIDTH / 8 + 1);
UWORD Height = EPD_2IN9BC_HEIGHT;
//send black data
EPD_2IN9BC_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9BC_SendData(0xFF);
}
}
//send red data
EPD_2IN9BC_SendCommand(0x13);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9BC_SendData(0xFF);
}
}
EPD_2IN9BC_SendCommand(0x12);
EPD_2IN9BC_ReadBusy();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_2IN9BC_Display(const UBYTE *blackimage, const UBYTE *ryimage)
{
UWORD Width, Height;
Width = (EPD_2IN9BC_WIDTH % 8 == 0)? (EPD_2IN9BC_WIDTH / 8 ): (EPD_2IN9BC_WIDTH / 8 + 1);
Height = EPD_2IN9BC_HEIGHT;
EPD_2IN9BC_SendCommand(0x10);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9BC_SendData(blackimage[i + j * Width]);
}
}
EPD_2IN9BC_SendCommand(0x92);
EPD_2IN9BC_SendCommand(0x13);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN9BC_SendData(ryimage[i + j * Width]);
}
}
EPD_2IN9BC_SendCommand(0x92);
EPD_2IN9BC_SendCommand(0x12);
EPD_2IN9BC_ReadBusy();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_2IN9BC_Sleep(void)
{
EPD_2IN9BC_SendCommand(0x02); // POWER_OFF
EPD_2IN9BC_ReadBusy();
EPD_2IN9BC_SendCommand(0x07); // DEEP_SLEEP
EPD_2IN9BC_SendData(0xA5); // check code
}
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