/***************************************************************************** * | 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); }