2019.06.24
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hnwangkg-ezio
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2990 changed files with 667957 additions and 444550 deletions
294
Raspberry Pi/c/lib/e-Paper/EPD_2in9.c
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294
Raspberry Pi/c/lib/e-Paper/EPD_2in9.c
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/*****************************************************************************
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* | File : EPD_2in9.c
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* | Author : Waveshare team
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* | Function : 2.9inch e-paper
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* | Info :
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*----------------
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* | This version: V3.0
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* | Date : 2019-06-12
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* | Info :
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* -----------------------------------------------------------------------------
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* V3.0(2019-06-12):
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* 1.Change:
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* lut_full_update[] => EPD_2IN9_lut_full_update[]
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* lut_partial_update[] => EPD_2IN9_lut_partial_update[]
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* EPD_Reset() => EPD_2IN9_Reset()
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* EPD_SendCommand() => EPD_2IN9_SendCommand()
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* EPD_SendData() => EPD_2IN9_SendData()
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* EPD_WaitUntilIdle() => EPD_2IN9_ReadBusy()
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* EPD_SetLut() => EPD_2IN9_SetLut()
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* EPD_SetWindow() => EPD_2IN9_SetWindow()
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* EPD_SetCursor() => EPD_2IN9_SetCursor()
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* EPD_TurnOnDisplay() => EPD_2IN9_TurnOnDisplay()
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* EPD_Init() => EPD_2IN9_Init()
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* EPD_Clear() => EPD_2IN9_Clear()
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* EPD_Display() => EPD_2IN9_Display()
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* EPD_Sleep() => EPD_2IN9_Sleep()
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* 2.remove commands define:
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* #define DRIVER_OUTPUT_CONTROL 0x01
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* #define BOOSTER_SOFT_START_CONTROL 0x0C
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* #define GATE_SCAN_START_POSITION 0x0F
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* #define DEEP_SLEEP_MODE 0x10
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* #define DATA_ENTRY_MODE_SETTING 0x11
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* #define SW_RESET 0x12
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* #define TEMPERATURE_SENSOR_CONTROL 0x1A
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* #define MASTER_ACTIVATION 0x20
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* #define DISPLAY_UPDATE_CONTROL_1 0x21
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* #define DISPLAY_UPDATE_CONTROL_2 0x22
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* #define WRITE_RAM 0x24
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* #define WRITE_VCOM_REGISTER 0x2C
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* #define WRITE_LUT_REGISTER 0x32
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* #define SET_DUMMY_LINE_PERIOD 0x3A
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* #define SET_GATE_TIME 0x3B
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* #define BORDER_WAVEFORM_CONTROL 0x3C
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* #define SET_RAM_X_ADDRESS_START_END_POSITION 0x44
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* #define SET_RAM_Y_ADDRESS_START_END_POSITION 0x45
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* #define SET_RAM_X_ADDRESS_COUNTER 0x4E
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* #define SET_RAM_Y_ADDRESS_COUNTER 0x4F
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* #define TERMINATE_FRAME_READ_WRITE 0xFF
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* -----------------------------------------------------------------------------
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* V2.0(2018-11-06):
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* 1.Remove:ImageBuff[EPD_2IN9_HEIGHT * EPD_2IN9_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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* 3.Change:
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* EPD_RST -> EPD_RST_PIN
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* EPD_DC -> EPD_DC_PIN
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* EPD_CS -> EPD_CS_PIN
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* EPD_BUSY -> EPD_BUSY_PIN
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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_2in9.h"
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#include "Debug.h"
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const unsigned char EPD_2IN9_lut_full_update[] = {
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0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22,
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0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99, 0x88,
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0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51,
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0x35, 0x51, 0x51, 0x19, 0x01, 0x00
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};
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const unsigned char EPD_2IN9_lut_partial_update[] = {
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0x10, 0x18, 0x18, 0x08, 0x18, 0x18, 0x08, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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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_2IN9_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(200);
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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_2IN9_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_2IN9_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_2IN9_ReadBusy(void)
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{
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Debug("e-Paper busy\r\n");
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while(DEV_Digital_Read(EPD_BUSY_PIN) == 1) { //LOW: idle, HIGH: busy
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DEV_Delay_ms(100);
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}
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Debug("e-Paper busy release\r\n");
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}
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/******************************************************************************
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function : Setting the display window
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parameter:
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******************************************************************************/
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static void EPD_2IN9_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
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{
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EPD_2IN9_SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
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EPD_2IN9_SendData((Xstart >> 3) & 0xFF);
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EPD_2IN9_SendData((Xend >> 3) & 0xFF);
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EPD_2IN9_SendCommand(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION
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EPD_2IN9_SendData(Ystart & 0xFF);
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EPD_2IN9_SendData((Ystart >> 8) & 0xFF);
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EPD_2IN9_SendData(Yend & 0xFF);
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EPD_2IN9_SendData((Yend >> 8) & 0xFF);
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}
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/******************************************************************************
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function : Set Cursor
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parameter:
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******************************************************************************/
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static void EPD_2IN9_SetCursor(UWORD Xstart, UWORD Ystart)
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{
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EPD_2IN9_SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
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EPD_2IN9_SendData((Xstart >> 3) & 0xFF);
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EPD_2IN9_SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER
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EPD_2IN9_SendData(Ystart & 0xFF);
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EPD_2IN9_SendData((Ystart >> 8) & 0xFF);
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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_2IN9_TurnOnDisplay(void)
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{
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EPD_2IN9_SendCommand(0x22); // DISPLAY_UPDATE_CONTROL_2
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EPD_2IN9_SendData(0xC4);
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EPD_2IN9_SendCommand(0x20); // MASTER_ACTIVATION
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EPD_2IN9_SendCommand(0xFF); // TERMINATE_FRAME_READ_WRITE
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EPD_2IN9_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_2IN9_Init(UBYTE Mode)
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{
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EPD_2IN9_Reset();
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EPD_2IN9_SendCommand(0x01); // DRIVER_OUTPUT_CONTROL
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EPD_2IN9_SendData((EPD_2IN9_HEIGHT - 1) & 0xFF);
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EPD_2IN9_SendData(((EPD_2IN9_HEIGHT - 1) >> 8) & 0xFF);
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EPD_2IN9_SendData(0x00); // GD = 0; SM = 0; TB = 0;
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EPD_2IN9_SendCommand(0x0C); // BOOSTER_SOFT_START_CONTROL
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EPD_2IN9_SendData(0xD7);
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EPD_2IN9_SendData(0xD6);
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EPD_2IN9_SendData(0x9D);
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EPD_2IN9_SendCommand(0x2C); // WRITE_VCOM_REGISTER
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EPD_2IN9_SendData(0xA8); // VCOM 7C
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EPD_2IN9_SendCommand(0x3A); // SET_DUMMY_LINE_PERIOD
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EPD_2IN9_SendData(0x1A); // 4 dummy lines per gate
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EPD_2IN9_SendCommand(0x3B); // SET_GATE_TIME
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EPD_2IN9_SendData(0x08); // 2us per line
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EPD_2IN9_SendCommand(0x3C); // BORDER_WAVEFORM_CONTROL
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EPD_2IN9_SendData(0x03);
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EPD_2IN9_SendCommand(0x11); // DATA_ENTRY_MODE_SETTING
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EPD_2IN9_SendData(0x03);
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//set the look-up table register
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EPD_2IN9_SendCommand(0x32); // WRITE_LUT_REGISTER
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if(Mode == EPD_2IN9_FULL){
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for (UWORD i = 0; i < 30; i++) {
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EPD_2IN9_SendData(EPD_2IN9_lut_full_update[i]);
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}
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}else if(Mode == EPD_2IN9_PART){
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for (UWORD i = 0; i < 30; i++) {
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EPD_2IN9_SendData(EPD_2IN9_lut_partial_update[i]);
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}
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}else{
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Debug("error, the Mode is EPD_2IN9_FULL or EPD_2IN9_PART");
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}
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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_2IN9_Clear(void)
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{
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UWORD Width, Height;
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Width = (EPD_2IN9_WIDTH % 8 == 0)? (EPD_2IN9_WIDTH / 8 ): (EPD_2IN9_WIDTH / 8 + 1);
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Height = EPD_2IN9_HEIGHT;
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EPD_2IN9_SetWindows(0, 0, EPD_2IN9_WIDTH, EPD_2IN9_HEIGHT);
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for (UWORD j = 0; j < Height; j++) {
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EPD_2IN9_SetCursor(0, j);
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EPD_2IN9_SendCommand(0x24);
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for (UWORD i = 0; i < Width; i++) {
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EPD_2IN9_SendData(0XFF);
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}
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}
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EPD_2IN9_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_2IN9_Display(UBYTE *Image)
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{
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UWORD Width, Height;
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Width = (EPD_2IN9_WIDTH % 8 == 0)? (EPD_2IN9_WIDTH / 8 ): (EPD_2IN9_WIDTH / 8 + 1);
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Height = EPD_2IN9_HEIGHT;
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UDOUBLE Addr = 0;
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// UDOUBLE Offset = ImageName;
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EPD_2IN9_SetWindows(0, 0, EPD_2IN9_WIDTH, EPD_2IN9_HEIGHT);
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for (UWORD j = 0; j < Height; j++) {
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EPD_2IN9_SetCursor(0, j);
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EPD_2IN9_SendCommand(0x24);
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for (UWORD i = 0; i < Width; i++) {
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Addr = i + j * Width;
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EPD_2IN9_SendData(Image[Addr]);
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}
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}
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EPD_2IN9_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_2IN9_Sleep(void)
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{
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EPD_2IN9_SendCommand(0x10);
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EPD_2IN9_SendData(0x01);
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// EPD_2IN9_ReadBusy();
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}
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