2019.06.24
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hnwangkg-ezio
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1f82e4a488
2990 changed files with 667957 additions and 444550 deletions
331
Raspberry Pi/c/lib/e-Paper/EPD_7in5bc.c
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331
Raspberry Pi/c/lib/e-Paper/EPD_7in5bc.c
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/*****************************************************************************
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* | File : EPD_7IN5BC.h
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* | Author : Waveshare team
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* | Function : 7.5inch e-paper b&c
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* | Info :
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* | This version: V3.0
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* | Date : 2019-06-13
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* | Info :
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* -----------------------------------------------------------------------------
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* V3.0(2019-06-13):
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* 1.Change:
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* EPD_Reset() => EPD_7IN5BC_Reset()
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* EPD_SendCommand() => EPD_7IN5BC_SendCommand()
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* EPD_SendData() => EPD_7IN5BC_SendData()
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* EPD_WaitUntilIdle() => EPD_7IN5BC_ReadBusy()
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* EPD_Init() => EPD_7IN5BC_Init()
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* EPD_Clear() => EPD_7IN5BC_Clear()
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* EPD_Display() => EPD_7IN5BC_Display()
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* EPD_Sleep() => EPD_7IN5BC_Sleep()
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* 2.Remove:
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* #define PANEL_SETTING 0x00
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* #define POWER_SETTING 0x01
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* #define POWER_OFF 0x02
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* #define POWER_OFF_SEQUENCE_SETTING 0x03
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* #define POWER_ON 0x04
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* #define POWER_ON_MEASURE 0x05
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* #define BOOSTER_SOFT_START 0x06
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* #define DEEP_SLEEP 0x07
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* #define DATA_START_TRANSMISSION_1 0x10
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* #define DATA_STOP 0x11
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* #define DISPLAY_REFRESH 0x12
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* #define IMAGE_PROCESS 0x13
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* #define LUT_FOR_VCOM 0x20
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* #define LUT_BLUE 0x21
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* #define LUT_WHITE 0x22
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* #define LUT_GRAY_1 0x23
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* #define LUT_GRAY_2 0x24
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* #define LUT_RED_0 0x25
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* #define LUT_RED_1 0x26
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* #define LUT_RED_2 0x27
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* #define LUT_RED_3 0x28
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* #define LUT_XON 0x29
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* #define PLL_CONTROL 0x30
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* #define TEMPERATURE_SENSOR_COMMAND 0x40
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* #define TEMPERATURE_CALIBRATION 0x41
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* #define TEMPERATURE_SENSOR_WRITE 0x42
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* #define TEMPERATURE_SENSOR_READ 0x43
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* #define VCOM_AND_DATA_INTERVAL_SETTING 0x50
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* #define LOW_POWER_DETECTION 0x51
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* #define TCON_SETTING 0x60
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* #define TCON_RESOLUTION 0x61
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* #define SPI_FLASH_CONTROL 0x65
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* #define REVISION 0x70
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* #define GET_STATUS 0x71
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* #define AUTO_MEASUREMENT_VCOM 0x80
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* #define READ_VCOM_VALUE 0x81
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* #define VCM_DC_SETTING 0x82
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* 3.add:
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* EPD_7IN5BC_DisplayHalfScreen()
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* -----------------------------------------------------------------------------
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* V2.0(2018-11-09):
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* 1.Remove:ImageBuff[EPD_HEIGHT * EPD_WIDTH / 8]
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* 2.Change:EPD_Display(UBYTE *Image)
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* Need to pass parameters: pointer to cached data
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "EPD_7in5bc.h"
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#include "Debug.h"
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/******************************************************************************
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function : Software reset
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parameter:
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******************************************************************************/
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static void EPD_7IN5BC_Reset(void)
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{
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_Delay_ms(200);
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DEV_Digital_Write(EPD_RST_PIN, 0);
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DEV_Delay_ms(10);
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_Delay_ms(200);
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}
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/******************************************************************************
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function : send command
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parameter:
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Reg : Command register
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******************************************************************************/
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static void EPD_7IN5BC_SendCommand(UBYTE Reg)
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{
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_SPI_WriteByte(Reg);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function : send data
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parameter:
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Data : Write data
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******************************************************************************/
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static void EPD_7IN5BC_SendData(UBYTE Data)
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{
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DEV_Digital_Write(EPD_DC_PIN, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_SPI_WriteByte(Data);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function : Wait until the busy_pin goes LOW
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parameter:
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******************************************************************************/
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void EPD_7IN5BC_ReadBusy(void)
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{
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UBYTE busy;
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Debug("e-Paper busy\r\n");
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do {
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EPD_7IN5BC_SendCommand(0x71);
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busy = DEV_Digital_Read(EPD_BUSY_PIN);
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busy =!(busy & 0x01);
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} while(busy);
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Debug("e-Paper busy release\r\n");
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}
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/******************************************************************************
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function : Turn On Display
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parameter:
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******************************************************************************/
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static void EPD_7IN5BC_TurnOnDisplay(void)
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{
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EPD_7IN5BC_SendCommand(0x04); // POWER ON
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EPD_7IN5BC_ReadBusy();
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EPD_7IN5BC_SendCommand(0x12); // display refresh
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DEV_Delay_ms(100);
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EPD_7IN5BC_ReadBusy();
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}
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/******************************************************************************
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function : Initialize the e-Paper register
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parameter:
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******************************************************************************/
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void EPD_7IN5BC_Init(void)
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{
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EPD_7IN5BC_Reset();
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EPD_7IN5BC_SendCommand(0x01); // POWER_SETTING
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EPD_7IN5BC_SendData(0x37);
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EPD_7IN5BC_SendData(0x00);
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EPD_7IN5BC_SendCommand(0x00); // PANEL_SETTING
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EPD_7IN5BC_SendData(0xCF);
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EPD_7IN5BC_SendData(0x08);
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EPD_7IN5BC_SendCommand(0x30); // PLL_CONTROL
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EPD_7IN5BC_SendData(0x3A); // PLL: 0-15:0x3C, 15+:0x3A
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EPD_7IN5BC_SendCommand(0x82); // VCM_DC_SETTING
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EPD_7IN5BC_SendData(0x28); //all temperature range
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EPD_7IN5BC_SendCommand(0x06); // BOOSTER_SOFT_START
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EPD_7IN5BC_SendData (0xc7);
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EPD_7IN5BC_SendData (0xcc);
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EPD_7IN5BC_SendData (0x15);
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EPD_7IN5BC_SendCommand(0x50); // VCOM AND DATA INTERVAL SETTING
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EPD_7IN5BC_SendData(0x77);
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EPD_7IN5BC_SendCommand(0x60); // TCON_SETTING
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EPD_7IN5BC_SendData(0x22);
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EPD_7IN5BC_SendCommand(0x65); // FLASH CONTROL
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EPD_7IN5BC_SendData(0x00);
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EPD_7IN5BC_SendCommand(0x61); // TCON_RESOLUTION
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EPD_7IN5BC_SendData(EPD_7IN5BC_WIDTH >> 8); // source 640
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EPD_7IN5BC_SendData(EPD_7IN5BC_WIDTH & 0xff);
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EPD_7IN5BC_SendData(EPD_7IN5BC_HEIGHT >> 8); // gate 384
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EPD_7IN5BC_SendData(EPD_7IN5BC_HEIGHT & 0xff);
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EPD_7IN5BC_SendCommand(0xe5); // FLASH MODE
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EPD_7IN5BC_SendData(0x03);
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}
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/******************************************************************************
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function : Clear screen
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parameter:
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******************************************************************************/
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void EPD_7IN5BC_Clear(void)
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{
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UWORD Width, Height;
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Width = (EPD_7IN5BC_WIDTH % 8 == 0)? (EPD_7IN5BC_WIDTH / 8): (EPD_7IN5BC_WIDTH / 8 + 1);
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Height = EPD_7IN5BC_HEIGHT;
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EPD_7IN5BC_SendCommand(0x10);
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for (UWORD j = 0; j < Height; j++) {
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for (UWORD i = 0; i < Width; i++) {
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for(UBYTE k = 0; k < 4; k++) {
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EPD_7IN5BC_SendData(0x33);
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}
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}
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}
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EPD_7IN5BC_TurnOnDisplay();
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}
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/******************************************************************************
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function : Sends the image buffer in RAM to e-Paper and displays
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parameter:
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******************************************************************************/
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void EPD_7IN5BC_Display(const UBYTE *blackimage, const UBYTE *ryimage)
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{
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UBYTE Data_Black, Data_RY, Data;
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UDOUBLE i, j, Width, Height;
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Width = (EPD_7IN5BC_WIDTH % 8 == 0)? (EPD_7IN5BC_WIDTH / 8 ): (EPD_7IN5BC_WIDTH / 8 + 1);
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Height = EPD_7IN5BC_HEIGHT;
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EPD_7IN5BC_SendCommand(0x10);
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for (j = 0; j < Height; j++) {
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for (i = 0; i < Width; i++) {
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Data_Black = blackimage[i + j * Width];
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Data_RY = ryimage[i + j * Width]; // red or yellow
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for(UBYTE k = 0; k < 8; k++) {
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if ((Data_RY & 0x80) == 0x00) {
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Data = 0x04; //red
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} else if ((Data_Black & 0x80) == 0x00) {
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Data = 0x00; //black
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} else {
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Data = 0x03; //white
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}
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Data = (Data << 4) & 0xFF;
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Data_Black = (Data_Black << 1) & 0xFF;
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Data_RY = (Data_RY << 1) & 0xFF;
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k += 1;
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if((Data_RY & 0x80) == 0x00) {
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Data |= 0x04; //red
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} else if ((Data_Black & 0x80) == 0x00) {
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Data |= 0x00; //black
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} else {
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Data |= 0x03; //white
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}
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Data_Black = (Data_Black << 1) & 0xFF;
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Data_RY = (Data_RY << 1) & 0xFF;
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EPD_7IN5BC_SendData(Data);
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}
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}
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}
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EPD_7IN5BC_TurnOnDisplay();
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}
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void EPD_7IN5BC_DisplayHalfScreen(const UBYTE *blackimage, const UBYTE *ryimage)
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{
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UBYTE Data_Black, Data_RY, Data;
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UDOUBLE i, j, Width, Height;
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Width = (EPD_7IN5BC_WIDTH % 8 == 0)? (EPD_7IN5BC_WIDTH / 8 ): (EPD_7IN5BC_WIDTH / 8 + 1);
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Height = EPD_7IN5BC_HEIGHT;
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EPD_7IN5BC_SendCommand(0x10);
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for (j = 0; j < Height / 2; j++) {
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for (i = 0; i < Width; i++) {
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Data_Black = blackimage[i + j * Width];
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Data_RY = ryimage[i + j * Width]; // red or yellow
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for(UBYTE k = 0; k < 8; k++) {
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if ((Data_RY & 0x80) == 0x00) {
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Data = 0x04; //red
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} else if ((Data_Black & 0x80) == 0x00) {
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Data = 0x00; //black
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} else {
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Data = 0x03; //white
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}
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Data = (Data << 4) & 0xFF;
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Data_Black = (Data_Black << 1) & 0xFF;
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Data_RY = (Data_RY << 1) & 0xFF;
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k += 1;
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if((Data_RY & 0x80) == 0x00) {
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Data |= 0x04; //red
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} else if ((Data_Black & 0x80) == 0x00) {
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Data |= 0x00; //black
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} else {
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Data |= 0x03; //white
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}
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Data_Black = (Data_Black << 1) & 0xFF;
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Data_RY = (Data_RY << 1) & 0xFF;
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EPD_7IN5BC_SendData(Data);
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}
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}
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}
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for (j = 0; j < Height / 2; j++) {
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for (i = 0; i < Width; i++) {
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for(UBYTE k = 0; k < 4; k++) {
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EPD_7IN5BC_SendData(Data);
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}
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}
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}
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EPD_7IN5BC_TurnOnDisplay();
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}
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/******************************************************************************
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function : Enter sleep mode
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parameter:
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******************************************************************************/
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void EPD_7IN5BC_Sleep(void)
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{
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EPD_7IN5BC_SendCommand(0x02); // POWER_OFF
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EPD_7IN5BC_ReadBusy();
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EPD_7IN5BC_SendCommand(0x07); // DEEP_SLEEP
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EPD_7IN5BC_SendData(0XA5);
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}
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