1 /* 2 * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha (at) intel.com> 3 * Copyright (c) 2014 Intel Corporation. 4 * 5 * Credits to Adafruit. 6 * Based on Adafruit ST7735 library, see original license in license.txt file. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining 9 * a copy of this software and associated documentation files (the 10 * "Software"), to deal in the Software without restriction, including 11 * without limitation the rights to use, copy, modify, merge, publish, 12 * distribute, sublicense, and/or sell copies of the Software, and to 13 * permit persons to whom the Software is furnished to do so, subject to 14 * the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be 17 * included in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 */ 27 #pragma once 28 29 #include <string> 30 #include <mraa/aio.hpp> 31 #include <mraa/common.hpp> 32 33 #include <mraa/gpio.hpp> 34 35 #include <mraa/spi.hpp> 36 #include <gfx.h> 37 38 #define INITR_GREENTAB 0x0 39 #define INITR_REDTAB 0x1 40 #define INITR_BLACKTAB 0x2 41 42 #define ST7735_TFTWIDTH 128 43 #define ST7735_TFTHEIGHT 160 44 45 #define ST7735_NOP 0x00 46 #define ST7735_SWRESET 0x01 47 #define ST7735_RDDID 0x04 48 #define ST7735_RDDST 0x09 49 50 #define ST7735_SLPIN 0x10 51 #define ST7735_SLPOUT 0x11 52 #define ST7735_PTLON 0x12 53 #define ST7735_NORON 0x13 54 55 #define ST7735_INVOFF 0x20 56 #define ST7735_INVON 0x21 57 #define ST7735_DISPOFF 0x28 58 #define ST7735_DISPON 0x29 59 #define ST7735_CASET 0x2A 60 #define ST7735_RASET 0x2B 61 #define ST7735_RAMWR 0x2C 62 #define ST7735_RAMRD 0x2E 63 64 #define ST7735_PTLAR 0x30 65 #define ST7735_COLMOD 0x3A 66 #define ST7735_MADCTL 0x36 67 68 #define ST7735_FRMCTR1 0xB1 69 #define ST7735_FRMCTR2 0xB2 70 #define ST7735_FRMCTR3 0xB3 71 #define ST7735_INVCTR 0xB4 72 #define ST7735_DISSET5 0xB6 73 74 #define ST7735_PWCTR1 0xC0 75 #define ST7735_PWCTR2 0xC1 76 #define ST7735_PWCTR3 0xC2 77 #define ST7735_PWCTR4 0xC3 78 #define ST7735_PWCTR5 0xC4 79 #define ST7735_VMCTR1 0xC5 80 81 #define ST7735_RDID1 0xDA 82 #define ST7735_RDID2 0xDB 83 #define ST7735_RDID3 0xDC 84 #define ST7735_RDID4 0xDD 85 86 #define ST7735_PWCTR6 0xFC 87 88 #define ST7735_GMCTRP1 0xE0 89 #define ST7735_GMCTRN1 0xE1 90 91 // Color definitions 92 #define ST7735_BLACK 0x0000 93 #define ST7735_BLUE 0x001F 94 #define ST7735_RED 0xF800 95 #define ST7735_GREEN 0x07E0 96 #define ST7735_CYAN 0x07FF 97 #define ST7735_MAGENTA 0xF81F 98 #define ST7735_YELLOW 0xFFE0 99 #define ST7735_WHITE 0xFFFF 100 101 #define HIGH 1 102 #define LOW 0 103 104 #define DELAY 0x80 105 106 namespace upm { 107 108 static const uint8_t Bcmd[] = { 109 // Initialization commands for 7735B screens 110 18, // 18 commands in list: 111 ST7735_SWRESET, DELAY, // 1: Software reset, no args, w/delay 112 50, // 50 ms delay 113 ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, no args, w/delay 114 255, // 255 = 500 ms delay 115 ST7735_COLMOD , 1+DELAY, // 3: Set color mode, 1 arg + delay: 116 0x05, // 16-bit color 117 10, // 10 ms delay 118 ST7735_FRMCTR1, 3+DELAY, // 4: Frame rate control, 3 args + delay: 119 0x00, // fastest refresh 120 0x06, // 6 lines front porch 121 0x03, // 3 lines back porch 122 10, // 10 ms delay 123 ST7735_MADCTL , 1 , // 5: Memory access ctrl (directions), 1 arg: 124 0x08, // Row addr/col addr, bottom to top refresh 125 ST7735_DISSET5, 2 , // 6: Display settings #5, 2 args, no delay: 126 0x15, // 1 clk cycle nonoverlap, 2 cycle gate 127 // rise, 3 cycle osc equalize 128 0x02, // Fix on VTL 129 ST7735_INVCTR , 1 , // 7: Display inversion control, 1 arg: 130 0x0, // Line inversion 131 ST7735_PWCTR1 , 2+DELAY, // 8: Power control, 2 args + delay: 132 0x02, // GVDD = 4.7V 133 0x70, // 1.0uA 134 10, // 10 ms delay 135 ST7735_PWCTR2 , 1 , // 9: Power control, 1 arg, no delay: 136 0x05, // VGH = 14.7V, VGL = -7.35V 137 ST7735_PWCTR3 , 2 , // 10: Power control, 2 args, no delay: 138 0x01, // Opamp current small 139 0x02, // Boost frequency 140 ST7735_VMCTR1 , 2+DELAY, // 11: Power control, 2 args + delay: 141 0x3C, // VCOMH = 4V 142 0x38, // VCOML = -1.1V 143 10, // 10 ms delay 144 ST7735_PWCTR6 , 2 , // 12: Power control, 2 args, no delay: 145 0x11, 0x15, 146 ST7735_GMCTRP1,16 , // 13: Magical unicorn dust, 16 args, no delay: 147 0x09, 0x16, 0x09, 0x20, // (seriously though, not sure what 148 0x21, 0x1B, 0x13, 0x19, // these config values represent) 149 0x17, 0x15, 0x1E, 0x2B, 150 0x04, 0x05, 0x02, 0x0E, 151 ST7735_GMCTRN1,16+DELAY, // 14: Sparkles and rainbows, 16 args + delay: 152 0x0B, 0x14, 0x08, 0x1E, // (ditto) 153 0x22, 0x1D, 0x18, 0x1E, 154 0x1B, 0x1A, 0x24, 0x2B, 155 0x06, 0x06, 0x02, 0x0F, 156 10, // 10 ms delay 157 ST7735_CASET , 4 , // 15: Column addr set, 4 args, no delay: 158 0x00, 0x02, // XSTART = 2 159 0x00, 0x81, // XEND = 129 160 ST7735_RASET , 4 , // 16: Row addr set, 4 args, no delay: 161 0x00, 0x02, // XSTART = 1 162 0x00, 0x81, // XEND = 160 163 ST7735_NORON , DELAY, // 17: Normal display on, no args, w/delay 164 10, // 10 ms delay 165 ST7735_DISPON , DELAY, // 18: Main screen turn on, no args, w/delay 166 255 }, // 255 = 500 ms delay 167 168 Rcmd1[] = { // Init for 7735R, part 1 (red or green tab) 169 15, // 15 commands in list: 170 ST7735_SWRESET, DELAY, // 1: Software reset, 0 args, w/delay 171 150, // 150 ms delay 172 ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, 0 args, w/delay 173 255, // 500 ms delay 174 ST7735_FRMCTR1, 3 , // 3: Frame rate ctrl - normal mode, 3 args: 175 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) 176 ST7735_FRMCTR2, 3 , // 4: Frame rate control - idle mode, 3 args: 177 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) 178 ST7735_FRMCTR3, 6 , // 5: Frame rate ctrl - partial mode, 6 args: 179 0x01, 0x2C, 0x2D, // Dot inversion mode 180 0x01, 0x2C, 0x2D, // Line inversion mode 181 ST7735_INVCTR , 1 , // 6: Display inversion ctrl, 1 arg, no delay: 182 0x07, // No inversion 183 ST7735_PWCTR1 , 3 , // 7: Power control, 3 args, no delay: 184 0xA2, 185 0x02, // -4.6V 186 0x84, // AUTO mode 187 ST7735_PWCTR2 , 1 , // 8: Power control, 1 arg, no delay: 188 0xC5, // VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD 189 ST7735_PWCTR3 , 2 , // 9: Power control, 2 args, no delay: 190 0x0A, // Opamp current small 191 0x00, // Boost frequency 192 ST7735_PWCTR4 , 2 , // 10: Power control, 2 args, no delay: 193 0x8A, // BCLK/2, Opamp current small & Medium low 194 0x2A, 195 ST7735_PWCTR5 , 2 , // 11: Power control, 2 args, no delay: 196 0x8A, 0xEE, 197 ST7735_VMCTR1 , 1 , // 12: Power control, 1 arg, no delay: 198 0x0E, 199 ST7735_INVOFF , 0 , // 13: Don't invert display, no args, no delay 200 ST7735_MADCTL , 1 , // 14: Memory access control (directions), 1 arg: 201 0xC8, // row addr/col addr, bottom to top refresh 202 ST7735_COLMOD , 1 , // 15: set color mode, 1 arg, no delay: 203 0x05 }, // 16-bit color 204 205 Rcmd2green[] = { // Init for 7735R, part 2 (green tab only) 206 2, // 2 commands in list: 207 ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay: 208 0x00, 0x02, // XSTART = 0 209 0x00, 0x7F+0x02, // XEND = 127 210 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay: 211 0x00, 0x01, // XSTART = 0 212 0x00, 0x9F+0x01 }, // XEND = 159 213 Rcmd2red[] = { // Init for 7735R, part 2 (red tab only) 214 2, // 2 commands in list: 215 ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay: 216 0x00, 0x00, // XSTART = 0 217 0x00, 0x7F, // XEND = 127 218 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay: 219 0x00, 0x00, // XSTART = 0 220 0x00, 0x9F }, // XEND = 159 221 222 Rcmd3[] = { // Init for 7735R, part 3 (red or green tab) 223 4, // 4 commands in list: 224 ST7735_GMCTRP1, 16 , // 1: Magical unicorn dust, 16 args, no delay: 225 0x02, 0x1c, 0x07, 0x12, 226 0x37, 0x32, 0x29, 0x2d, 227 0x29, 0x25, 0x2B, 0x39, 228 0x00, 0x01, 0x03, 0x10, 229 ST7735_GMCTRN1, 16 , // 2: Sparkles and rainbows, 16 args, no delay: 230 0x03, 0x1d, 0x07, 0x06, 231 0x2E, 0x2C, 0x29, 0x2D, 232 0x2E, 0x2E, 0x37, 0x3F, 233 0x00, 0x00, 0x02, 0x10, 234 ST7735_NORON , DELAY, // 3: Normal display on, no args, w/delay 235 10, // 10 ms delay 236 ST7735_DISPON , DELAY, // 4: Main screen turn on, no args w/delay 237 100 }; // 100 ms delay 238 239 #define swap(a, b) { int16_t t = a; a = b; b = t; } 240 241 const unsigned char font[] = { 242 0x00, 0x00, 0x00, 0x00, 0x00, 243 0x3E, 0x5B, 0x4F, 0x5B, 0x3E, 244 0x3E, 0x6B, 0x4F, 0x6B, 0x3E, 245 0x1C, 0x3E, 0x7C, 0x3E, 0x1C, 246 0x18, 0x3C, 0x7E, 0x3C, 0x18, 247 0x1C, 0x57, 0x7D, 0x57, 0x1C, 248 0x1C, 0x5E, 0x7F, 0x5E, 0x1C, 249 0x00, 0x18, 0x3C, 0x18, 0x00, 250 0xFF, 0xE7, 0xC3, 0xE7, 0xFF, 251 0x00, 0x18, 0x24, 0x18, 0x00, 252 0xFF, 0xE7, 0xDB, 0xE7, 0xFF, 253 0x30, 0x48, 0x3A, 0x06, 0x0E, 254 0x26, 0x29, 0x79, 0x29, 0x26, 255 0x40, 0x7F, 0x05, 0x05, 0x07, 256 0x40, 0x7F, 0x05, 0x25, 0x3F, 257 0x5A, 0x3C, 0xE7, 0x3C, 0x5A, 258 0x7F, 0x3E, 0x1C, 0x1C, 0x08, 259 0x08, 0x1C, 0x1C, 0x3E, 0x7F, 260 0x14, 0x22, 0x7F, 0x22, 0x14, 261 0x5F, 0x5F, 0x00, 0x5F, 0x5F, 262 0x06, 0x09, 0x7F, 0x01, 0x7F, 263 0x00, 0x66, 0x89, 0x95, 0x6A, 264 0x60, 0x60, 0x60, 0x60, 0x60, 265 0x94, 0xA2, 0xFF, 0xA2, 0x94, 266 0x08, 0x04, 0x7E, 0x04, 0x08, 267 0x10, 0x20, 0x7E, 0x20, 0x10, 268 0x08, 0x08, 0x2A, 0x1C, 0x08, 269 0x08, 0x1C, 0x2A, 0x08, 0x08, 270 0x1E, 0x10, 0x10, 0x10, 0x10, 271 0x0C, 0x1E, 0x0C, 0x1E, 0x0C, 272 0x30, 0x38, 0x3E, 0x38, 0x30, 273 0x06, 0x0E, 0x3E, 0x0E, 0x06, 274 0x00, 0x00, 0x00, 0x00, 0x00, 275 0x00, 0x00, 0x5F, 0x00, 0x00, 276 0x00, 0x07, 0x00, 0x07, 0x00, 277 0x14, 0x7F, 0x14, 0x7F, 0x14, 278 0x24, 0x2A, 0x7F, 0x2A, 0x12, 279 0x23, 0x13, 0x08, 0x64, 0x62, 280 0x36, 0x49, 0x56, 0x20, 0x50, 281 0x00, 0x08, 0x07, 0x03, 0x00, 282 0x00, 0x1C, 0x22, 0x41, 0x00, 283 0x00, 0x41, 0x22, 0x1C, 0x00, 284 0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 285 0x08, 0x08, 0x3E, 0x08, 0x08, 286 0x00, 0x80, 0x70, 0x30, 0x00, 287 0x08, 0x08, 0x08, 0x08, 0x08, 288 0x00, 0x00, 0x60, 0x60, 0x00, 289 0x20, 0x10, 0x08, 0x04, 0x02, 290 0x3E, 0x51, 0x49, 0x45, 0x3E, 291 0x00, 0x42, 0x7F, 0x40, 0x00, 292 0x72, 0x49, 0x49, 0x49, 0x46, 293 0x21, 0x41, 0x49, 0x4D, 0x33, 294 0x18, 0x14, 0x12, 0x7F, 0x10, 295 0x27, 0x45, 0x45, 0x45, 0x39, 296 0x3C, 0x4A, 0x49, 0x49, 0x31, 297 0x41, 0x21, 0x11, 0x09, 0x07, 298 0x36, 0x49, 0x49, 0x49, 0x36, 299 0x46, 0x49, 0x49, 0x29, 0x1E, 300 0x00, 0x00, 0x14, 0x00, 0x00, 301 0x00, 0x40, 0x34, 0x00, 0x00, 302 0x00, 0x08, 0x14, 0x22, 0x41, 303 0x14, 0x14, 0x14, 0x14, 0x14, 304 0x00, 0x41, 0x22, 0x14, 0x08, 305 0x02, 0x01, 0x59, 0x09, 0x06, 306 0x3E, 0x41, 0x5D, 0x59, 0x4E, 307 0x7C, 0x12, 0x11, 0x12, 0x7C, 308 0x7F, 0x49, 0x49, 0x49, 0x36, 309 0x3E, 0x41, 0x41, 0x41, 0x22, 310 0x7F, 0x41, 0x41, 0x41, 0x3E, 311 0x7F, 0x49, 0x49, 0x49, 0x41, 312 0x7F, 0x09, 0x09, 0x09, 0x01, 313 0x3E, 0x41, 0x41, 0x51, 0x73, 314 0x7F, 0x08, 0x08, 0x08, 0x7F, 315 0x00, 0x41, 0x7F, 0x41, 0x00, 316 0x20, 0x40, 0x41, 0x3F, 0x01, 317 0x7F, 0x08, 0x14, 0x22, 0x41, 318 0x7F, 0x40, 0x40, 0x40, 0x40, 319 0x7F, 0x02, 0x1C, 0x02, 0x7F, 320 0x7F, 0x04, 0x08, 0x10, 0x7F, 321 0x3E, 0x41, 0x41, 0x41, 0x3E, 322 0x7F, 0x09, 0x09, 0x09, 0x06, 323 0x3E, 0x41, 0x51, 0x21, 0x5E, 324 0x7F, 0x09, 0x19, 0x29, 0x46, 325 0x26, 0x49, 0x49, 0x49, 0x32, 326 0x03, 0x01, 0x7F, 0x01, 0x03, 327 0x3F, 0x40, 0x40, 0x40, 0x3F, 328 0x1F, 0x20, 0x40, 0x20, 0x1F, 329 0x3F, 0x40, 0x38, 0x40, 0x3F, 330 0x63, 0x14, 0x08, 0x14, 0x63, 331 0x03, 0x04, 0x78, 0x04, 0x03, 332 0x61, 0x59, 0x49, 0x4D, 0x43, 333 0x00, 0x7F, 0x41, 0x41, 0x41, 334 0x02, 0x04, 0x08, 0x10, 0x20, 335 0x00, 0x41, 0x41, 0x41, 0x7F, 336 0x04, 0x02, 0x01, 0x02, 0x04, 337 0x40, 0x40, 0x40, 0x40, 0x40, 338 0x00, 0x03, 0x07, 0x08, 0x00, 339 0x20, 0x54, 0x54, 0x78, 0x40, 340 0x7F, 0x28, 0x44, 0x44, 0x38, 341 0x38, 0x44, 0x44, 0x44, 0x28, 342 0x38, 0x44, 0x44, 0x28, 0x7F, 343 0x38, 0x54, 0x54, 0x54, 0x18, 344 0x00, 0x08, 0x7E, 0x09, 0x02, 345 0x18, 0xA4, 0xA4, 0x9C, 0x78, 346 0x7F, 0x08, 0x04, 0x04, 0x78, 347 0x00, 0x44, 0x7D, 0x40, 0x00, 348 0x20, 0x40, 0x40, 0x3D, 0x00, 349 0x7F, 0x10, 0x28, 0x44, 0x00, 350 0x00, 0x41, 0x7F, 0x40, 0x00, 351 0x7C, 0x04, 0x78, 0x04, 0x78, 352 0x7C, 0x08, 0x04, 0x04, 0x78, 353 0x38, 0x44, 0x44, 0x44, 0x38, 354 0xFC, 0x18, 0x24, 0x24, 0x18, 355 0x18, 0x24, 0x24, 0x18, 0xFC, 356 0x7C, 0x08, 0x04, 0x04, 0x08, 357 0x48, 0x54, 0x54, 0x54, 0x24, 358 0x04, 0x04, 0x3F, 0x44, 0x24, 359 0x3C, 0x40, 0x40, 0x20, 0x7C, 360 0x1C, 0x20, 0x40, 0x20, 0x1C, 361 0x3C, 0x40, 0x30, 0x40, 0x3C, 362 0x44, 0x28, 0x10, 0x28, 0x44, 363 0x4C, 0x90, 0x90, 0x90, 0x7C, 364 0x44, 0x64, 0x54, 0x4C, 0x44, 365 0x00, 0x08, 0x36, 0x41, 0x00, 366 0x00, 0x00, 0x77, 0x00, 0x00, 367 0x00, 0x41, 0x36, 0x08, 0x00, 368 0x02, 0x01, 0x02, 0x04, 0x02, 369 0x3C, 0x26, 0x23, 0x26, 0x3C, 370 0x1E, 0xA1, 0xA1, 0x61, 0x12, 371 0x3A, 0x40, 0x40, 0x20, 0x7A, 372 0x38, 0x54, 0x54, 0x55, 0x59, 373 0x21, 0x55, 0x55, 0x79, 0x41, 374 0x21, 0x54, 0x54, 0x78, 0x41, 375 0x21, 0x55, 0x54, 0x78, 0x40, 376 0x20, 0x54, 0x55, 0x79, 0x40, 377 0x0C, 0x1E, 0x52, 0x72, 0x12, 378 0x39, 0x55, 0x55, 0x55, 0x59, 379 0x39, 0x54, 0x54, 0x54, 0x59, 380 0x39, 0x55, 0x54, 0x54, 0x58, 381 0x00, 0x00, 0x45, 0x7C, 0x41, 382 0x00, 0x02, 0x45, 0x7D, 0x42, 383 0x00, 0x01, 0x45, 0x7C, 0x40, 384 0xF0, 0x29, 0x24, 0x29, 0xF0, 385 0xF0, 0x28, 0x25, 0x28, 0xF0, 386 0x7C, 0x54, 0x55, 0x45, 0x00, 387 0x20, 0x54, 0x54, 0x7C, 0x54, 388 0x7C, 0x0A, 0x09, 0x7F, 0x49, 389 0x32, 0x49, 0x49, 0x49, 0x32, 390 0x32, 0x48, 0x48, 0x48, 0x32, 391 0x32, 0x4A, 0x48, 0x48, 0x30, 392 0x3A, 0x41, 0x41, 0x21, 0x7A, 393 0x3A, 0x42, 0x40, 0x20, 0x78, 394 0x00, 0x9D, 0xA0, 0xA0, 0x7D, 395 0x39, 0x44, 0x44, 0x44, 0x39, 396 0x3D, 0x40, 0x40, 0x40, 0x3D, 397 0x3C, 0x24, 0xFF, 0x24, 0x24, 398 0x48, 0x7E, 0x49, 0x43, 0x66, 399 0x2B, 0x2F, 0xFC, 0x2F, 0x2B, 400 0xFF, 0x09, 0x29, 0xF6, 0x20, 401 0xC0, 0x88, 0x7E, 0x09, 0x03, 402 0x20, 0x54, 0x54, 0x79, 0x41, 403 0x00, 0x00, 0x44, 0x7D, 0x41, 404 0x30, 0x48, 0x48, 0x4A, 0x32, 405 0x38, 0x40, 0x40, 0x22, 0x7A, 406 0x00, 0x7A, 0x0A, 0x0A, 0x72, 407 0x7D, 0x0D, 0x19, 0x31, 0x7D, 408 0x26, 0x29, 0x29, 0x2F, 0x28, 409 0x26, 0x29, 0x29, 0x29, 0x26, 410 0x30, 0x48, 0x4D, 0x40, 0x20, 411 0x38, 0x08, 0x08, 0x08, 0x08, 412 0x08, 0x08, 0x08, 0x08, 0x38, 413 0x2F, 0x10, 0xC8, 0xAC, 0xBA, 414 0x2F, 0x10, 0x28, 0x34, 0xFA, 415 0x00, 0x00, 0x7B, 0x00, 0x00, 416 0x08, 0x14, 0x2A, 0x14, 0x22, 417 0x22, 0x14, 0x2A, 0x14, 0x08, 418 0xAA, 0x00, 0x55, 0x00, 0xAA, 419 0xAA, 0x55, 0xAA, 0x55, 0xAA, 420 0x00, 0x00, 0x00, 0xFF, 0x00, 421 0x10, 0x10, 0x10, 0xFF, 0x00, 422 0x14, 0x14, 0x14, 0xFF, 0x00, 423 0x10, 0x10, 0xFF, 0x00, 0xFF, 424 0x10, 0x10, 0xF0, 0x10, 0xF0, 425 0x14, 0x14, 0x14, 0xFC, 0x00, 426 0x14, 0x14, 0xF7, 0x00, 0xFF, 427 0x00, 0x00, 0xFF, 0x00, 0xFF, 428 0x14, 0x14, 0xF4, 0x04, 0xFC, 429 0x14, 0x14, 0x17, 0x10, 0x1F, 430 0x10, 0x10, 0x1F, 0x10, 0x1F, 431 0x14, 0x14, 0x14, 0x1F, 0x00, 432 0x10, 0x10, 0x10, 0xF0, 0x00, 433 0x00, 0x00, 0x00, 0x1F, 0x10, 434 0x10, 0x10, 0x10, 0x1F, 0x10, 435 0x10, 0x10, 0x10, 0xF0, 0x10, 436 0x00, 0x00, 0x00, 0xFF, 0x10, 437 0x10, 0x10, 0x10, 0x10, 0x10, 438 0x10, 0x10, 0x10, 0xFF, 0x10, 439 0x00, 0x00, 0x00, 0xFF, 0x14, 440 0x00, 0x00, 0xFF, 0x00, 0xFF, 441 0x00, 0x00, 0x1F, 0x10, 0x17, 442 0x00, 0x00, 0xFC, 0x04, 0xF4, 443 0x14, 0x14, 0x17, 0x10, 0x17, 444 0x14, 0x14, 0xF4, 0x04, 0xF4, 445 0x00, 0x00, 0xFF, 0x00, 0xF7, 446 0x14, 0x14, 0x14, 0x14, 0x14, 447 0x14, 0x14, 0xF7, 0x00, 0xF7, 448 0x14, 0x14, 0x14, 0x17, 0x14, 449 0x10, 0x10, 0x1F, 0x10, 0x1F, 450 0x14, 0x14, 0x14, 0xF4, 0x14, 451 0x10, 0x10, 0xF0, 0x10, 0xF0, 452 0x00, 0x00, 0x1F, 0x10, 0x1F, 453 0x00, 0x00, 0x00, 0x1F, 0x14, 454 0x00, 0x00, 0x00, 0xFC, 0x14, 455 0x00, 0x00, 0xF0, 0x10, 0xF0, 456 0x10, 0x10, 0xFF, 0x10, 0xFF, 457 0x14, 0x14, 0x14, 0xFF, 0x14, 458 0x10, 0x10, 0x10, 0x1F, 0x00, 459 0x00, 0x00, 0x00, 0xF0, 0x10, 460 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 461 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 462 0xFF, 0xFF, 0xFF, 0x00, 0x00, 463 0x00, 0x00, 0x00, 0xFF, 0xFF, 464 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 465 0x38, 0x44, 0x44, 0x38, 0x44, 466 0x7C, 0x2A, 0x2A, 0x3E, 0x14, 467 0x7E, 0x02, 0x02, 0x06, 0x06, 468 0x02, 0x7E, 0x02, 0x7E, 0x02, 469 0x63, 0x55, 0x49, 0x41, 0x63, 470 0x38, 0x44, 0x44, 0x3C, 0x04, 471 0x40, 0x7E, 0x20, 0x1E, 0x20, 472 0x06, 0x02, 0x7E, 0x02, 0x02, 473 0x99, 0xA5, 0xE7, 0xA5, 0x99, 474 0x1C, 0x2A, 0x49, 0x2A, 0x1C, 475 0x4C, 0x72, 0x01, 0x72, 0x4C, 476 0x30, 0x4A, 0x4D, 0x4D, 0x30, 477 0x30, 0x48, 0x78, 0x48, 0x30, 478 0xBC, 0x62, 0x5A, 0x46, 0x3D, 479 0x3E, 0x49, 0x49, 0x49, 0x00, 480 0x7E, 0x01, 0x01, 0x01, 0x7E, 481 0x2A, 0x2A, 0x2A, 0x2A, 0x2A, 482 0x44, 0x44, 0x5F, 0x44, 0x44, 483 0x40, 0x51, 0x4A, 0x44, 0x40, 484 0x40, 0x44, 0x4A, 0x51, 0x40, 485 0x00, 0x00, 0xFF, 0x01, 0x03, 486 0xE0, 0x80, 0xFF, 0x00, 0x00, 487 0x08, 0x08, 0x6B, 0x6B, 0x08, 488 0x36, 0x12, 0x36, 0x24, 0x36, 489 0x06, 0x0F, 0x09, 0x0F, 0x06, 490 0x00, 0x00, 0x18, 0x18, 0x00, 491 0x00, 0x00, 0x10, 0x10, 0x00, 492 0x30, 0x40, 0xFF, 0x01, 0x01, 493 0x00, 0x1F, 0x01, 0x01, 0x1E, 494 0x00, 0x19, 0x1D, 0x17, 0x12, 495 0x00, 0x3C, 0x3C, 0x3C, 0x3C, 496 0x00, 0x00, 0x00, 0x00, 0x00 497 }; 498 499 /** 500 * @brief ST7735 LCD library 501 * @defgroup st7735 libupm-st7735 502 * @ingroup adafruit spi display 503 */ 504 /** 505 * @library st7735 506 * @sensor st7735 507 * @comname ST7735 LCD 508 * @type display 509 * @man adafruit 510 * @web http://www.adafruit.com/product/358 511 * @con spi 512 * 513 * @brief API for the ST7735 LCD 514 * 515 * This module defines the interface for the ST7735 display library 516 * 517 * @image html st7735.jpg 518 * @snippet st7735.cxx Interesting 519 */ 520 class ST7735 : public GFX { 521 public: 522 /** 523 * Instantiates an ST7735 object 524 * 525 * @param csLCD LCD chip select pin 526 * @param cSD SD card chip select pin 527 * @param rs Data/command pin 528 * @param rst Reset pin 529 */ 530 ST7735 (uint8_t csLCD, uint8_t cSD, uint8_t rs, uint8_t rst); 531 532 /** 533 * Returns the name of the component 534 */ 535 std::string name() 536 { 537 return m_name; 538 } 539 540 /** 541 * Initializes the module GPIOs 542 */ 543 void initModule (); 544 545 /** 546 * Configures the chip via the SPI 547 */ 548 void configModule (); 549 550 /** 551 * Sends a command to an SPI bus (rs must be LOW) 552 * 553 * @param value Command number 554 */ 555 void write (uint8_t value); 556 557 /** 558 * Sends data to an SPI bus (rs must be HIGH) 559 * 560 * @param value Command number 561 */ 562 void data (uint8_t value); 563 564 /** 565 * Executes a set of commands and data 566 * 567 * @param addr Pointer to the start of the commands/data section 568 */ 569 void executeCMDList (const uint8_t *addr); 570 571 /** 572 * Sets the window size inside the screen where pixels data 573 * is written. 574 * 575 * @param x0 First coordinate 576 * @param y0 First coordinate 577 * @param x1 Second coordinate 578 * @param y1 Second coordinate 579 */ 580 void setAddrWindow (uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1); 581 582 /** 583 * Sends a pixel color (RGB) to the chip. 584 * 585 * @param x Axis on the horizontal scale 586 * @param y Axis on the vertical scale 587 * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15]) 588 */ 589 void drawPixel (int16_t x, int16_t y, uint16_t color); 590 591 /** 592 * Copies the buffer to the chip via the SPI. 593 */ 594 void refresh (); 595 596 /** 597 * LCD chip select is LOW 598 */ 599 mraa::Result lcdCSOn (); 600 601 /** 602 * LCD chip select is HIGH 603 */ 604 mraa::Result lcdCSOff (); 605 606 /** 607 * CD card chip select is LOW 608 */ 609 mraa::Result sdCSOn (); 610 611 /** 612 * CD card select is HIGH 613 */ 614 mraa::Result sdCSOff (); 615 616 /** 617 * Data select is HIGH 618 */ 619 mraa::Result rsHIGH (); 620 621 /** 622 * Data select is LOW 623 */ 624 mraa::Result rsLOW (); 625 626 uint8_t m_map[160 * 128 * 2]; /**< Screens buffer */ 627 private: 628 mraa::Spi m_spi; 629 uint8_t m_spiBuffer[32]; 630 631 mraa::Gpio m_csLCDPinCtx; 632 mraa::Gpio m_cSDPinCtx; 633 mraa::Gpio m_rSTPinCtx; 634 mraa::Gpio m_rSPinCtx; 635 636 std::string m_name; 637 }; 638 639 } 640
