EPD_2in7b.c (12840B)
1 /***************************************************************************** 2 * | File : EPD_2in7b.c 3 * | Author : Waveshare team 4 * | Function : 2.7inch e-paper b 5 * | Info : 6 *---------------- 7 * | This version: V3.0 8 * | Date : 2019-06-12 9 * | Info : 10 * ----------------------------------------------------------------------------- 11 * V3.0(2019-06-12): 12 * lut_vcom_dc[] => EPD_2in7B_lut_vcom_dc[] 13 * lut_ww[] => EPD_2in7B_lut_ww[] 14 * lut_bw[] => EPD_2in7B_lut_bw[] 15 * lut_bb[] => EPD_2in7B_lut_bb[] 16 * lut_wb[] => EPD_2in7B_lut_wb[] 17 * EPD_Reset() => EPD_2in7B_Reset() 18 * EPD_2IN7B_SendCommand() => EPD_2in7B_SendCommand() 19 * EPD_2IN7B_SendData() => EPD_2in7B_SendData() 20 * EPD_2IN7B_ReadBusy() => EPD_2in7B_ReadBusy() 21 * EPD_SetLut() => EPD_2in7B_SetLut() 22 * EPD_Init() => EPD_2in7B_Init() 23 * EPD_Clear() => EPD_2in7B_Clear() 24 * EPD_Display() => EPD_2in7B_Display() 25 * EPD_Sleep() => EPD_2in7B_Sleep() 26 * 2.remove commands define: 27 * #define PANEL_SETTING 0x00 28 * #define POWER_SETTING 0x01 29 * #define POWER_OFF 0x02 30 * #define POWER_OFF_SEQUENCE_SETTING 0x03 31 * #define POWER_ON 0x04 32 * #define POWER_ON_MEASURE 0x05 33 * #define BOOSTER_SOFT_START 0x06 34 * #define DEEP_SLEEP 0x07 35 * #define DATA_START_TRANSMISSION_1 0x10 36 * #define DATA_STOP 0x11 37 * #define DISPLAY_REFRESH 0x12 38 * #define DATA_START_TRANSMISSION_2 0x13 39 * #define PARTIAL_DATA_START_TRANSMISSION_1 0x14 40 * #define PARTIAL_DATA_START_TRANSMISSION_2 0x15 41 * #define PARTIAL_DISPLAY_REFRESH 0x16 42 * #define LUT_FOR_VCOM 0x20 43 * #define LUT_WHITE_TO_WHITE 0x21 44 * #define LUT_BLACK_TO_WHITE 0x22 45 * #define LUT_WHITE_TO_BLACK 0x23 46 * #define LUT_BLACK_TO_BLACK 0x24 47 * #define PLL_CONTROL 0x30 48 * #define TEMPERATURE_SENSOR_COMMAND 0x40 49 * #define TEMPERATURE_SENSOR_CALIBRATION 0x41 50 * #define TEMPERATURE_SENSOR_WRITE 0x42 51 * #define TEMPERATURE_SENSOR_READ 0x43 52 * #define VCOM_AND_DATA_INTERVAL_SETTING 0x50 53 * #define LOW_POWER_DETECTION 0x51 54 * #define TCON_SETTING 0x60 55 * #define TCON_RESOLUTION 0x61 56 * #define SOURCE_AND_GATE_START_SETTING 0x62 57 * #define GET_STATUS 0x71 58 * #define AUTO_MEASURE_VCOM 0x80 59 * #define VCOM_VALUE 0x81 60 * #define VCM_DC_SETTING_REGISTER 0x82 61 * #define PROGRAM_MODE 0xA0 62 * #define ACTIVE_PROGRAM 0xA1 63 * #define READ_OTP_DATA 0xA2 64 * ----------------------------------------------------------------------------- 65 * V2.0(2018-10-30): 66 * 1.Remove:ImageBuff[EPD_2IN7B_HEIGHT * EPD_2IN7B_WIDTH / 8] 67 * 2.Change:EPD_Display(UBYTE *Image) 68 * Need to pass parameters: pointer to cached data 69 # 70 # Permission is hereby granted, free of charge, to any person obtaining a copy 71 # of this software and associated documnetation files (the "Software"), to deal 72 # in the Software without restriction, including without limitation the rights 73 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 74 # copies of the Software, and to permit persons to whom the Software is 75 # furished to do so, subject to the following conditions: 76 # 77 # The above copyright notice and this permission notice shall be included in 78 # all copies or substantial portions of the Software. 79 # 80 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 81 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 82 # FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 83 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 84 # LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 85 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 86 # THE SOFTWARE. 87 # 88 ******************************************************************************/ 89 #include "EPD_2in7b.h" 90 #include "Debug.h" 91 92 static const unsigned char EPD_2IN7B_lut_vcom_dc[] = { 93 0x00, 0x00, 94 0x00, 0x1A, 0x1A, 0x00, 0x00, 0x01, 95 0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08, 96 0x00, 0x0E, 0x01, 0x0E, 0x01, 0x10, 97 0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08, 98 0x00, 0x04, 0x10, 0x00, 0x00, 0x05, 99 0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A, 100 0x00, 0x23, 0x00, 0x00, 0x00, 0x01 101 }; 102 103 //R21H 104 static const unsigned char EPD_2IN7B_lut_ww[] = { 105 0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01, 106 0x40, 0x0A, 0x0A, 0x00, 0x00, 0x08, 107 0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10, 108 0x80, 0x0A, 0x0A, 0x00, 0x00, 0x08, 109 0x00, 0x04, 0x10, 0x00, 0x00, 0x05, 110 0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A, 111 0x00, 0x23, 0x00, 0x00, 0x00, 0x01 112 }; 113 114 //R22H r 115 static const unsigned char EPD_2IN7B_lut_bw[] = { 116 0xA0, 0x1A, 0x1A, 0x00, 0x00, 0x01, 117 0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08, 118 0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10, 119 0x90, 0x0A, 0x0A, 0x00, 0x00, 0x08, 120 0xB0, 0x04, 0x10, 0x00, 0x00, 0x05, 121 0xB0, 0x03, 0x0E, 0x00, 0x00, 0x0A, 122 0xC0, 0x23, 0x00, 0x00, 0x00, 0x01 123 }; 124 125 //R23H w 126 static const unsigned char EPD_2IN7B_lut_bb[] = { 127 0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01, 128 0x40, 0x0A, 0x0A, 0x00, 0x00, 0x08, 129 0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10, 130 0x80, 0x0A, 0x0A, 0x00, 0x00, 0x08, 131 0x00, 0x04, 0x10, 0x00, 0x00, 0x05, 132 0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A, 133 0x00, 0x23, 0x00, 0x00, 0x00, 0x01 134 }; 135 136 //R24H b 137 static const unsigned char EPD_2IN7B_lut_wb[] = { 138 0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01, 139 0x20, 0x0A, 0x0A, 0x00, 0x00, 0x08, 140 0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10, 141 0x10, 0x0A, 0x0A, 0x00, 0x00, 0x08, 142 0x00, 0x04, 0x10, 0x00, 0x00, 0x05, 143 0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A, 144 0x00, 0x23, 0x00, 0x00, 0x00, 0x01 145 }; 146 147 /****************************************************************************** 148 function : Software reset 149 parameter: 150 ******************************************************************************/ 151 static void EPD_2IN7B_Reset(void) 152 { 153 DEV_Digital_Write(EPD_RST_PIN, 1); 154 DEV_Delay_ms(200); 155 DEV_Digital_Write(EPD_RST_PIN, 0); 156 DEV_Delay_ms(10); 157 DEV_Digital_Write(EPD_RST_PIN, 1); 158 DEV_Delay_ms(200); 159 } 160 161 /****************************************************************************** 162 function : send command 163 parameter: 164 Reg : Command register 165 ******************************************************************************/ 166 static void EPD_2IN7B_SendCommand(UBYTE Reg) 167 { 168 DEV_Digital_Write(EPD_DC_PIN, 0); 169 DEV_Digital_Write(EPD_CS_PIN, 0); 170 DEV_SPI_WriteByte(Reg); 171 DEV_Digital_Write(EPD_CS_PIN, 1); 172 } 173 174 /****************************************************************************** 175 function : send data 176 parameter: 177 Data : Write data 178 ******************************************************************************/ 179 static void EPD_2IN7B_SendData(UBYTE Data) 180 { 181 DEV_Digital_Write(EPD_DC_PIN, 1); 182 DEV_Digital_Write(EPD_CS_PIN, 0); 183 DEV_SPI_WriteByte(Data); 184 DEV_Digital_Write(EPD_CS_PIN, 1); 185 } 186 187 /****************************************************************************** 188 function : Wait until the busy_pin goes LOW 189 parameter: 190 ******************************************************************************/ 191 static void EPD_2IN7B_ReadBusy(void) 192 { 193 Debug("e-Paper busy\r\n"); 194 while(DEV_Digital_Read(EPD_BUSY_PIN) == 0) { //0: busy, 1: idle 195 DEV_Delay_ms(100); 196 } 197 Debug("e-Paper busy release\r\n"); 198 } 199 200 /****************************************************************************** 201 function : set the look-up tables 202 parameter: 203 ******************************************************************************/ 204 static void EPD_2IN7B_SetLut(void) 205 { 206 unsigned int count; 207 EPD_2IN7B_SendCommand(0x20); //vcom 208 for(count = 0; count < 44; count++) { 209 EPD_2IN7B_SendData(EPD_2IN7B_lut_vcom_dc[count]); 210 } 211 212 EPD_2IN7B_SendCommand(0x21); //ww -- 213 for(count = 0; count < 42; count++) { 214 EPD_2IN7B_SendData(EPD_2IN7B_lut_ww[count]); 215 } 216 217 EPD_2IN7B_SendCommand(0x22); //bw r 218 for(count = 0; count < 42; count++) { 219 EPD_2IN7B_SendData(EPD_2IN7B_lut_bw[count]); 220 } 221 222 EPD_2IN7B_SendCommand(0x23); //wb w 223 for(count = 0; count < 42; count++) { 224 EPD_2IN7B_SendData(EPD_2IN7B_lut_bb[count]); 225 } 226 227 EPD_2IN7B_SendCommand(0x24); //bb b 228 for(count = 0; count < 42; count++) { 229 EPD_2IN7B_SendData(EPD_2IN7B_lut_wb[count]); 230 } 231 } 232 233 /****************************************************************************** 234 function : Initialize the e-Paper register 235 parameter: 236 ******************************************************************************/ 237 void EPD_2IN7B_Init(void) 238 { 239 EPD_2IN7B_Reset(); 240 241 EPD_2IN7B_SendCommand(0x06); //boost soft start 242 EPD_2IN7B_SendData (0x07); //A 243 EPD_2IN7B_SendData (0x07); //B 244 EPD_2IN7B_SendData (0x17); //C 245 246 EPD_2IN7B_SendCommand(0x04); 247 EPD_2IN7B_ReadBusy();//waiting for the electronic paper IC to release the idle signal 248 249 EPD_2IN7B_SendCommand(0x00); //panel setting 250 EPD_2IN7B_SendData(0x0f); //LUT from OTP￡?128x296 251 252 EPD_2IN7B_SendCommand(0x16); 253 EPD_2IN7B_SendData(0x00); //KW-BF KWR-AF BWROTP 0f 254 255 EPD_2IN7B_SendCommand(0xF8); //boostéè?¨ 256 EPD_2IN7B_SendData (0x60); 257 EPD_2IN7B_SendData(0xa5); 258 259 EPD_2IN7B_SendCommand(0xF8); //boostéè?¨ 260 EPD_2IN7B_SendData (0x90); 261 EPD_2IN7B_SendData (0x00); 262 263 EPD_2IN7B_SendCommand(0xF8); //boostéè?¨ 264 EPD_2IN7B_SendData (0x93); 265 EPD_2IN7B_SendData(0x2A); 266 267 EPD_2IN7B_SendCommand(0x01); // PANEL_SETTING 268 EPD_2IN7B_SendData(0x03); // VDS_EN, VDG_EN 269 EPD_2IN7B_SendData(0x00); // VCOM_HV, VGHL_LV[1], VGHL_LV[0] 270 EPD_2IN7B_SendData(0x2b); // VDH 271 EPD_2IN7B_SendData(0x2b); // VDL 272 EPD_2IN7B_SendData(0x2b); // VDHR 273 274 } 275 276 /****************************************************************************** 277 function : Clear screen 278 parameter: 279 ******************************************************************************/ 280 void EPD_2IN7B_Clear(void) 281 { 282 UWORD Width, Height; 283 Width = (EPD_2IN7B_WIDTH % 8 == 0)? (EPD_2IN7B_WIDTH / 8 ): (EPD_2IN7B_WIDTH / 8 + 1); 284 Height = EPD_2IN7B_HEIGHT; 285 286 EPD_2IN7B_SendCommand(0x10); 287 for (UWORD j = 0; j < Height; j++) { 288 for (UWORD i = 0; i < Width; i++) { 289 EPD_2IN7B_SendData(0X00); 290 } 291 } 292 EPD_2IN7B_SendCommand(0x11); // DATA_STOP 293 294 EPD_2IN7B_SendCommand(0x13); 295 for (UWORD j = 0; j < Height; j++) { 296 for (UWORD i = 0; i < Width; i++) { 297 EPD_2IN7B_SendData(0X00); 298 } 299 } 300 EPD_2IN7B_SendCommand(0x11); // DATA_STOP 301 302 EPD_2IN7B_SendCommand(0x12); 303 EPD_2IN7B_ReadBusy(); 304 } 305 306 /****************************************************************************** 307 function : Sends the image buffer in RAM to e-Paper and displays 308 parameter: 309 ******************************************************************************/ 310 void EPD_2IN7B_Display(UBYTE *Imageblack, UBYTE *Imagered) 311 { 312 UWORD Width, Height; 313 Width = (EPD_2IN7B_WIDTH % 8 == 0)? (EPD_2IN7B_WIDTH / 8 ): (EPD_2IN7B_WIDTH / 8 + 1); 314 Height = EPD_2IN7B_HEIGHT; 315 316 EPD_2IN7B_SendCommand(0x10); 317 for (UWORD j = 0; j < Height; j++) { 318 for (UWORD i = 0; i < Width; i++) { 319 EPD_2IN7B_SendData(~Imageblack[i + j * Width]); 320 } 321 } 322 EPD_2IN7B_SendCommand(0x11); // DATA_STOP 323 324 EPD_2IN7B_SendCommand(0x13); 325 for (UWORD j = 0; j < Height; j++) { 326 for (UWORD i = 0; i < Width; i++) { 327 EPD_2IN7B_SendData(~Imagered[i + j * Width]); 328 } 329 } 330 331 EPD_2IN7B_SendCommand(0x11); // DATA_STOP 332 333 EPD_2IN7B_SendCommand(0x12); 334 EPD_2IN7B_ReadBusy(); 335 } 336 337 /****************************************************************************** 338 function : Enter sleep mode 339 parameter: 340 ******************************************************************************/ 341 void EPD_2IN7B_Sleep(void) 342 { 343 EPD_2IN7B_SendCommand(0X50); 344 EPD_2IN7B_SendData(0xf7); 345 EPD_2IN7B_SendCommand(0X02); //power off 346 EPD_2IN7B_SendCommand(0X07); //deep sleep 347 EPD_2IN7B_SendData(0xA5); 348 }