Chris Taylor / LCD_ST7735 Featured

SPI based library for the ST7735 LCD controller.

Dependents:   RayCastingEngine RETRO_LCD_PerformanceTest RETRO_loop_test RETRO_RickGame ... more

LCD_ST7735.cpp@0:7b3fb3085867, 2014-09-19 (annotated)

Committer:
taylorza
Date:
Fri Sep 19 02:43:29 2014 +0000
Revision:
0:7b3fb3085867
Child:
1:33ff5fad4320
Initial commit of the library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
taylorza 0:7b3fb3085867 1 #include "mbed.h"
taylorza 0:7b3fb3085867 2 #include "LCD_ST7735.h"
taylorza 0:7b3fb3085867 3
taylorza 0:7b3fb3085867 4 LCD_ST7735::LCD_ST7735(
taylorza 0:7b3fb3085867 5 PinName backlightPin,
taylorza 0:7b3fb3085867 6 PinName resetPin,
taylorza 0:7b3fb3085867 7 PinName dsPin,
taylorza 0:7b3fb3085867 8 PinName mosiPin,
taylorza 0:7b3fb3085867 9 PinName misoPin,
taylorza 0:7b3fb3085867 10 PinName clkPin,
taylorza 0:7b3fb3085867 11 PinName csPin) :
taylorza 0:7b3fb3085867 12 _backlight(backlightPin, 0),
taylorza 0:7b3fb3085867 13 _reset(resetPin, 1),
taylorza 0:7b3fb3085867 14 _ds(dsPin, 0),
taylorza 0:7b3fb3085867 15 _cs(csPin, 1),
taylorza 0:7b3fb3085867 16 _spi(mosiPin, misoPin, clkPin)
taylorza 0:7b3fb3085867 17 {
taylorza 0:7b3fb3085867 18 _spi.format(8, 3);
taylorza 0:7b3fb3085867 19 _spi.frequency(12000000);
taylorza 0:7b3fb3085867 20
taylorza 0:7b3fb3085867 21 initDisplay();
taylorza 0:7b3fb3085867 22 clearScreen();
taylorza 0:7b3fb3085867 23 setForegroundColor(0xffff);
taylorza 0:7b3fb3085867 24 setBackgroundColor(0x0000);
taylorza 0:7b3fb3085867 25 }
taylorza 0:7b3fb3085867 26
taylorza 0:7b3fb3085867 27 void LCD_ST7735::setBacklight(bool state)
taylorza 0:7b3fb3085867 28 {
taylorza 0:7b3fb3085867 29 _backlight = state ? 1 : 0;
taylorza 0:7b3fb3085867 30 }
taylorza 0:7b3fb3085867 31
taylorza 0:7b3fb3085867 32 void LCD_ST7735::clearScreen(uint16_t color)
taylorza 0:7b3fb3085867 33 {
taylorza 0:7b3fb3085867 34 clipRect(0, 0, 127, 159);
taylorza 0:7b3fb3085867 35 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 36 for(int i = 0; i < 128 * 160 * 2; ++i)
taylorza 0:7b3fb3085867 37 {
taylorza 0:7b3fb3085867 38 writeBatchData(color);
taylorza 0:7b3fb3085867 39 }
taylorza 0:7b3fb3085867 40 endBatchCommand();
taylorza 0:7b3fb3085867 41 }
taylorza 0:7b3fb3085867 42
taylorza 0:7b3fb3085867 43 void LCD_ST7735::setPixel(int x, int y, uint16_t color)
taylorza 0:7b3fb3085867 44 {
taylorza 0:7b3fb3085867 45 write(CMD_CASET, (uint8_t[]){0, x, 0, x}, 4);
taylorza 0:7b3fb3085867 46 write(CMD_RASET, (uint8_t[]){0, y, 0, y}, 4);
taylorza 0:7b3fb3085867 47 write(CMD_RAMWR, color);
taylorza 0:7b3fb3085867 48 }
taylorza 0:7b3fb3085867 49
taylorza 0:7b3fb3085867 50 void LCD_ST7735::drawLine(int x1, int y1, int x2, int y2, uint16_t color)
taylorza 0:7b3fb3085867 51 {
taylorza 0:7b3fb3085867 52 int dx = abs(x2 - x1);
taylorza 0:7b3fb3085867 53 int dy = abs(y2 - y1);
taylorza 0:7b3fb3085867 54
taylorza 0:7b3fb3085867 55 if (dx == 0)
taylorza 0:7b3fb3085867 56 {
taylorza 0:7b3fb3085867 57 drawVertLine(x1, y1, y2, color);
taylorza 0:7b3fb3085867 58 return;
taylorza 0:7b3fb3085867 59 }
taylorza 0:7b3fb3085867 60 else if(dy == 0)
taylorza 0:7b3fb3085867 61 {
taylorza 0:7b3fb3085867 62 drawHorizLine(x1, y1, x2, color);
taylorza 0:7b3fb3085867 63 return;
taylorza 0:7b3fb3085867 64 }
taylorza 0:7b3fb3085867 65
taylorza 0:7b3fb3085867 66 int sx = (x1 < x2) ? 1 : -1;
taylorza 0:7b3fb3085867 67 int sy = (y1 < y2) ? 1 : -1;
taylorza 0:7b3fb3085867 68 int err = dx - dy;
taylorza 0:7b3fb3085867 69 while(x1 != x2 || y1 != y2)
taylorza 0:7b3fb3085867 70 {
taylorza 0:7b3fb3085867 71 setPixel(x1, y1, color);
taylorza 0:7b3fb3085867 72 int e2 = err << 1;
taylorza 0:7b3fb3085867 73 if (e2 > -dy)
taylorza 0:7b3fb3085867 74 {
taylorza 0:7b3fb3085867 75 err -= dy;
taylorza 0:7b3fb3085867 76 x1 += sx;
taylorza 0:7b3fb3085867 77 }
taylorza 0:7b3fb3085867 78 if (e2 < dx)
taylorza 0:7b3fb3085867 79 {
taylorza 0:7b3fb3085867 80 err += dx;
taylorza 0:7b3fb3085867 81 y1 += sy;
taylorza 0:7b3fb3085867 82 }
taylorza 0:7b3fb3085867 83 }
taylorza 0:7b3fb3085867 84 setPixel(x2, y2, color);
taylorza 0:7b3fb3085867 85 }
taylorza 0:7b3fb3085867 86
taylorza 0:7b3fb3085867 87 void LCD_ST7735::swap(int &a, int &b)
taylorza 0:7b3fb3085867 88 {
taylorza 0:7b3fb3085867 89 int t = a;
taylorza 0:7b3fb3085867 90 a = b;
taylorza 0:7b3fb3085867 91 b = t;
taylorza 0:7b3fb3085867 92 }
taylorza 0:7b3fb3085867 93
taylorza 0:7b3fb3085867 94 void LCD_ST7735::drawRect(int x1, int y1, int x2, int y2, uint16_t color)
taylorza 0:7b3fb3085867 95 {
taylorza 0:7b3fb3085867 96 if (x1 > x2) swap(x1, x2);
taylorza 0:7b3fb3085867 97 if (y1 > y2) swap(y1, y2);
taylorza 0:7b3fb3085867 98
taylorza 0:7b3fb3085867 99 drawHorizLine(x1, y1, x2, color);
taylorza 0:7b3fb3085867 100 drawHorizLine(x1, y2, x2, color);
taylorza 0:7b3fb3085867 101 drawVertLine(x1, y1, y2, color);
taylorza 0:7b3fb3085867 102 drawVertLine(x2, y1, y2, color);
taylorza 0:7b3fb3085867 103 }
taylorza 0:7b3fb3085867 104
taylorza 0:7b3fb3085867 105 void LCD_ST7735::drawCircle(int x, int y, int r, uint16_t color)
taylorza 0:7b3fb3085867 106 {
taylorza 0:7b3fb3085867 107 int ix = r;
taylorza 0:7b3fb3085867 108 int iy = 0;
taylorza 0:7b3fb3085867 109 int err = 1 - r;
taylorza 0:7b3fb3085867 110
taylorza 0:7b3fb3085867 111 while(ix >= iy)
taylorza 0:7b3fb3085867 112 {
taylorza 0:7b3fb3085867 113 setPixel(x + ix, y + iy, color);
taylorza 0:7b3fb3085867 114 setPixel(x + iy, y + ix, color);
taylorza 0:7b3fb3085867 115 setPixel(x - ix, y + iy, color);
taylorza 0:7b3fb3085867 116 setPixel(x - iy, y + ix, color);
taylorza 0:7b3fb3085867 117 setPixel(x - ix, y - iy, color);
taylorza 0:7b3fb3085867 118 setPixel(x - iy, y - ix, color);
taylorza 0:7b3fb3085867 119 setPixel(x + ix, y - iy, color);
taylorza 0:7b3fb3085867 120 setPixel(x + iy, y - ix, color);
taylorza 0:7b3fb3085867 121 iy++;
taylorza 0:7b3fb3085867 122 if (err < 0)
taylorza 0:7b3fb3085867 123 {
taylorza 0:7b3fb3085867 124 err += 2 * iy + 1;
taylorza 0:7b3fb3085867 125 }
taylorza 0:7b3fb3085867 126 else
taylorza 0:7b3fb3085867 127 {
taylorza 0:7b3fb3085867 128 ix--;
taylorza 0:7b3fb3085867 129 err += 2 * (iy - ix + 1);
taylorza 0:7b3fb3085867 130 }
taylorza 0:7b3fb3085867 131 }
taylorza 0:7b3fb3085867 132 }
taylorza 0:7b3fb3085867 133
taylorza 0:7b3fb3085867 134 void LCD_ST7735::fillRect(int x1, int y1, int x2, int y2, uint16_t borderColor, uint16_t fillColor)
taylorza 0:7b3fb3085867 135 {
taylorza 0:7b3fb3085867 136 if (x1 > x2) swap(x1, x2);
taylorza 0:7b3fb3085867 137 if (y1 > y2) swap(y1, y2);
taylorza 0:7b3fb3085867 138
taylorza 0:7b3fb3085867 139 drawRect(x1, y1, x2, y2, borderColor);
taylorza 0:7b3fb3085867 140 clipRect(x1 + 1, y1 + 1, x2 - 1, y2 - 1);
taylorza 0:7b3fb3085867 141 int c = ((x2-x1-2) * (y2-y1-2)) << 1;
taylorza 0:7b3fb3085867 142 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 143 while(c--)
taylorza 0:7b3fb3085867 144 {
taylorza 0:7b3fb3085867 145 writeBatchData(fillColor);
taylorza 0:7b3fb3085867 146 }
taylorza 0:7b3fb3085867 147 endBatchCommand();
taylorza 0:7b3fb3085867 148 }
taylorza 0:7b3fb3085867 149
taylorza 0:7b3fb3085867 150 void LCD_ST7735::fillCircle(int x, int y, int r, uint16_t borderColor, uint16_t fillColor)
taylorza 0:7b3fb3085867 151 {
taylorza 0:7b3fb3085867 152 int ix = r;
taylorza 0:7b3fb3085867 153 int iy = 0;
taylorza 0:7b3fb3085867 154 int err = 1 - r;
taylorza 0:7b3fb3085867 155
taylorza 0:7b3fb3085867 156 while(ix >= iy)
taylorza 0:7b3fb3085867 157 {
taylorza 0:7b3fb3085867 158 setPixel(x - ix, y + iy, borderColor);
taylorza 0:7b3fb3085867 159 setPixel(x + ix, y + iy, borderColor);
taylorza 0:7b3fb3085867 160 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 0:7b3fb3085867 161
taylorza 0:7b3fb3085867 162 setPixel(x - iy, y + ix, borderColor);
taylorza 0:7b3fb3085867 163 setPixel(x + iy, y + ix, borderColor);
taylorza 0:7b3fb3085867 164 drawHorizLine(x - iy + 1, y + ix, x + iy - 1, fillColor);
taylorza 0:7b3fb3085867 165
taylorza 0:7b3fb3085867 166 setPixel(x - ix, y - iy, borderColor);
taylorza 0:7b3fb3085867 167 setPixel(x + ix, y - iy, borderColor);
taylorza 0:7b3fb3085867 168 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 0:7b3fb3085867 169
taylorza 0:7b3fb3085867 170 setPixel(x - iy, y - ix, borderColor);
taylorza 0:7b3fb3085867 171 setPixel(x + iy, y - ix, borderColor);
taylorza 0:7b3fb3085867 172 drawHorizLine(x - iy + 1, y - ix, x + iy - 1, fillColor);
taylorza 0:7b3fb3085867 173 iy++;
taylorza 0:7b3fb3085867 174 if (err < 0)
taylorza 0:7b3fb3085867 175 {
taylorza 0:7b3fb3085867 176 err += 2 * iy + 1;
taylorza 0:7b3fb3085867 177 }
taylorza 0:7b3fb3085867 178 else
taylorza 0:7b3fb3085867 179 {
taylorza 0:7b3fb3085867 180 ix--;
taylorza 0:7b3fb3085867 181 err += 2 * (iy - ix + 1);
taylorza 0:7b3fb3085867 182 }
taylorza 0:7b3fb3085867 183 }
taylorza 0:7b3fb3085867 184 }
taylorza 0:7b3fb3085867 185
taylorza 0:7b3fb3085867 186 void LCD_ST7735::drawBitmap(int x, int y, const uint16_t *pbmp)
taylorza 0:7b3fb3085867 187 {
taylorza 0:7b3fb3085867 188 int w = *pbmp++;
taylorza 0:7b3fb3085867 189 int h = *pbmp++;
taylorza 0:7b3fb3085867 190
taylorza 0:7b3fb3085867 191 clip(x, y, w, h);
taylorza 0:7b3fb3085867 192 int c = w * h;
taylorza 0:7b3fb3085867 193 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 194 while(c--)
taylorza 0:7b3fb3085867 195 {
taylorza 0:7b3fb3085867 196 writeBatchData(*pbmp++);
taylorza 0:7b3fb3085867 197 }
taylorza 0:7b3fb3085867 198 endBatchCommand();
taylorza 0:7b3fb3085867 199 }
taylorza 0:7b3fb3085867 200
taylorza 0:7b3fb3085867 201 void LCD_ST7735::setForegroundColor(uint16_t color)
taylorza 0:7b3fb3085867 202 {
taylorza 0:7b3fb3085867 203 _foregroundColor = color;
taylorza 0:7b3fb3085867 204 }
taylorza 0:7b3fb3085867 205
taylorza 0:7b3fb3085867 206 void LCD_ST7735::setBackgroundColor(uint16_t color)
taylorza 0:7b3fb3085867 207 {
taylorza 0:7b3fb3085867 208 _backgroundColor = color;
taylorza 0:7b3fb3085867 209 }
taylorza 0:7b3fb3085867 210
taylorza 0:7b3fb3085867 211 void LCD_ST7735::drawString(const uint8_t *pFont, int x, int y, const char *pString)
taylorza 0:7b3fb3085867 212 {
taylorza 0:7b3fb3085867 213 char *p = (char*)pString;
taylorza 0:7b3fb3085867 214 while(*p != 0)
taylorza 0:7b3fb3085867 215 {
taylorza 0:7b3fb3085867 216 drawChar(pFont, x, y, *p++);
taylorza 0:7b3fb3085867 217 x += 8;
taylorza 0:7b3fb3085867 218 }
taylorza 0:7b3fb3085867 219 }
taylorza 0:7b3fb3085867 220
taylorza 0:7b3fb3085867 221 void LCD_ST7735::drawVertLine(int x1, int y1, int y2, uint16_t color)
taylorza 0:7b3fb3085867 222 {
taylorza 0:7b3fb3085867 223 clipRect(x1, y1, x1, y2);
taylorza 0:7b3fb3085867 224 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 225 for (int i = 0; i < (y2 - y1) * 2; ++i)
taylorza 0:7b3fb3085867 226 {
taylorza 0:7b3fb3085867 227 writeBatchData(color);
taylorza 0:7b3fb3085867 228 }
taylorza 0:7b3fb3085867 229 endBatchCommand();
taylorza 0:7b3fb3085867 230 }
taylorza 0:7b3fb3085867 231
taylorza 0:7b3fb3085867 232 void LCD_ST7735::drawHorizLine(int x1, int y1, int x2, uint16_t color)
taylorza 0:7b3fb3085867 233 {
taylorza 0:7b3fb3085867 234 clipRect(x1, y1, x2, y1);
taylorza 0:7b3fb3085867 235 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 236 for (int i = 0; i < (x2 - x1) * 2; ++i)
taylorza 0:7b3fb3085867 237 {
taylorza 0:7b3fb3085867 238 writeBatchData(color);
taylorza 0:7b3fb3085867 239 }
taylorza 0:7b3fb3085867 240 endBatchCommand();
taylorza 0:7b3fb3085867 241 }
taylorza 0:7b3fb3085867 242
taylorza 0:7b3fb3085867 243 void LCD_ST7735::drawChar(const uint8_t *pFont, int x, int y, char c)
taylorza 0:7b3fb3085867 244 {
taylorza 0:7b3fb3085867 245 const uint8_t *pChar = pFont + (c * 8);
taylorza 0:7b3fb3085867 246
taylorza 0:7b3fb3085867 247 clip(x, y, 8, 8);
taylorza 0:7b3fb3085867 248 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 249 for(int r = 0; r < 8; ++r)
taylorza 0:7b3fb3085867 250 {
taylorza 0:7b3fb3085867 251 uint8_t b = pChar[r];
taylorza 0:7b3fb3085867 252 for(int c = 0; c < 8; ++c)
taylorza 0:7b3fb3085867 253 {
taylorza 0:7b3fb3085867 254 if (b & 0x80)
taylorza 0:7b3fb3085867 255 writeBatchData(_foregroundColor);
taylorza 0:7b3fb3085867 256 else
taylorza 0:7b3fb3085867 257 writeBatchData(_backgroundColor);
taylorza 0:7b3fb3085867 258
taylorza 0:7b3fb3085867 259 b <<= 1;
taylorza 0:7b3fb3085867 260 }
taylorza 0:7b3fb3085867 261 }
taylorza 0:7b3fb3085867 262 endBatchCommand();
taylorza 0:7b3fb3085867 263 }
taylorza 0:7b3fb3085867 264
taylorza 0:7b3fb3085867 265 void LCD_ST7735::initDisplay()
taylorza 0:7b3fb3085867 266 {
taylorza 0:7b3fb3085867 267 reset();
taylorza 0:7b3fb3085867 268
taylorza 0:7b3fb3085867 269 write(CMD_SLPOUT);
taylorza 0:7b3fb3085867 270
taylorza 0:7b3fb3085867 271 write(CMD_FRMCTR1, (uint8_t[]){0x01, 0x2c, 0x2d}, 3);
taylorza 0:7b3fb3085867 272 write(CMD_FRMCTR1, (uint8_t[]){0x01, 0x2c, 0x2d}, 3);
taylorza 0:7b3fb3085867 273 write(CMD_FRMCTR1, (uint8_t[]){0x01, 0x2c, 0x2d, 0x01, 0x2c, 0x2d}, 6);
taylorza 0:7b3fb3085867 274
taylorza 0:7b3fb3085867 275 write(CMD_INVCTR, (uint8_t[]){0x07}, 1);
taylorza 0:7b3fb3085867 276
taylorza 0:7b3fb3085867 277 write(CMD_PWCTR1, (uint8_t[]){0xa2, 0x02, 0x84}, 3);
taylorza 0:7b3fb3085867 278 write(CMD_PWCTR2, (uint8_t[]){0xc5}, 1);
taylorza 0:7b3fb3085867 279 write(CMD_PWCTR3, (uint8_t[]){0x0a, 0x00}, 2);
taylorza 0:7b3fb3085867 280 write(CMD_PWCTR4, (uint8_t[]){0x8a, 0x2a}, 2);
taylorza 0:7b3fb3085867 281 write(CMD_PWCTR5, (uint8_t[]){0x8a, 0xee}, 2);
taylorza 0:7b3fb3085867 282
taylorza 0:7b3fb3085867 283 write(CMD_VMCTR1, (uint8_t[]){0x0e}, 1);
taylorza 0:7b3fb3085867 284
taylorza 0:7b3fb3085867 285 write(CMD_MADCTL, (uint8_t[]){0xc8}, 1);
taylorza 0:7b3fb3085867 286
taylorza 0:7b3fb3085867 287 // Gama sequence
taylorza 0:7b3fb3085867 288 write(CMD_GAMCTRP1, (uint8_t[])
taylorza 0:7b3fb3085867 289 {
taylorza 0:7b3fb3085867 290 0x0f, 0x1a,
taylorza 0:7b3fb3085867 291 0x0f, 0x18,
taylorza 0:7b3fb3085867 292 0x2f, 0x28,
taylorza 0:7b3fb3085867 293 0x20, 0x22,
taylorza 0:7b3fb3085867 294 0x1f, 0x1b,
taylorza 0:7b3fb3085867 295 0x23, 0x37,
taylorza 0:7b3fb3085867 296 0x00, 0x07,
taylorza 0:7b3fb3085867 297 0x02, 0x10
taylorza 0:7b3fb3085867 298 }, 16);
taylorza 0:7b3fb3085867 299
taylorza 0:7b3fb3085867 300 write(CMD_GAMCTRN1, (uint8_t[])
taylorza 0:7b3fb3085867 301 {
taylorza 0:7b3fb3085867 302 0x0f, 0x1b,
taylorza 0:7b3fb3085867 303 0x0f, 0x17,
taylorza 0:7b3fb3085867 304 0x33, 0x2c,
taylorza 0:7b3fb3085867 305 0x29, 0x2e,
taylorza 0:7b3fb3085867 306 0x30, 0x30,
taylorza 0:7b3fb3085867 307 0x39, 0x3f,
taylorza 0:7b3fb3085867 308 0x00, 0x07,
taylorza 0:7b3fb3085867 309 0x03, 0x10
taylorza 0:7b3fb3085867 310 }, 16);
taylorza 0:7b3fb3085867 311
taylorza 0:7b3fb3085867 312 write(CMD_CASET, (uint8_t[]){0x00, 0x00, 0x00, 0x7f}, 4);
taylorza 0:7b3fb3085867 313 write(CMD_RASET, (uint8_t[]){0x00, 0x00, 0x00, 0x9f}, 4);
taylorza 0:7b3fb3085867 314
taylorza 0:7b3fb3085867 315 write(CMD_EXTCTRL, (uint8_t[]){0x01}, 1);
taylorza 0:7b3fb3085867 316
taylorza 0:7b3fb3085867 317 // Disable RAM power save
taylorza 0:7b3fb3085867 318 write(0xf6, (uint8_t[]){0x00}, 1);
taylorza 0:7b3fb3085867 319
taylorza 0:7b3fb3085867 320 // 65k color mode
taylorza 0:7b3fb3085867 321 write(CMD_COLMOD, (uint8_t[]){0x05}, 1);
taylorza 0:7b3fb3085867 322
taylorza 0:7b3fb3085867 323 // Enable display
taylorza 0:7b3fb3085867 324 write(CMD_DISPON);
taylorza 0:7b3fb3085867 325
taylorza 0:7b3fb3085867 326 setBacklight(true);
taylorza 0:7b3fb3085867 327 }
taylorza 0:7b3fb3085867 328
taylorza 0:7b3fb3085867 329 void LCD_ST7735::reset()
taylorza 0:7b3fb3085867 330 {
taylorza 0:7b3fb3085867 331 _reset = 0;
taylorza 0:7b3fb3085867 332 wait_us(100);
taylorza 0:7b3fb3085867 333 _reset = 1;
taylorza 0:7b3fb3085867 334 wait_us(100);
taylorza 0:7b3fb3085867 335 }
taylorza 0:7b3fb3085867 336
taylorza 0:7b3fb3085867 337 void LCD_ST7735::clip(int x, int y, int w, int h)
taylorza 0:7b3fb3085867 338 {
taylorza 0:7b3fb3085867 339 clipRect(x, y, (x + w) - 1, (y + h) - 1);
taylorza 0:7b3fb3085867 340 }
taylorza 0:7b3fb3085867 341
taylorza 0:7b3fb3085867 342 void LCD_ST7735::clipRect(int x1, int y1, int x2, int y2)
taylorza 0:7b3fb3085867 343 {
taylorza 0:7b3fb3085867 344 uint8_t x1l = (uint8_t)(x1 & 0xff);
taylorza 0:7b3fb3085867 345 uint8_t x1h = (uint8_t)((x1 >> 8) & 0xff);
taylorza 0:7b3fb3085867 346 uint8_t x2l = (uint8_t)(x2 & 0xff);
taylorza 0:7b3fb3085867 347 uint8_t x2h = (uint8_t)((x2 >> 8) & 0xff);
taylorza 0:7b3fb3085867 348 write(CMD_CASET, (uint8_t[]){x1h, x1l, x2h, x2l}, 4);
taylorza 0:7b3fb3085867 349
taylorza 0:7b3fb3085867 350 uint8_t y1l = (uint8_t)(y1 & 0xff);
taylorza 0:7b3fb3085867 351 uint8_t y1h = (uint8_t)((y1 >> 8) & 0xff);
taylorza 0:7b3fb3085867 352 uint8_t y2l = (uint8_t)(y2 & 0xff);
taylorza 0:7b3fb3085867 353 uint8_t y2h = (uint8_t)((y2 >> 8) & 0xff);
taylorza 0:7b3fb3085867 354 write(CMD_RASET, (uint8_t[]){y1h, y1l, y2h, y2l}, 4);
taylorza 0:7b3fb3085867 355 }
taylorza 0:7b3fb3085867 356
taylorza 0:7b3fb3085867 357 void LCD_ST7735::write(uint8_t cmd)
taylorza 0:7b3fb3085867 358 {
taylorza 0:7b3fb3085867 359 write(cmd, NULL, 0);
taylorza 0:7b3fb3085867 360 }
taylorza 0:7b3fb3085867 361
taylorza 0:7b3fb3085867 362 void LCD_ST7735::write(uint8_t cmd, uint8_t data[], int dataLen)
taylorza 0:7b3fb3085867 363 {
taylorza 0:7b3fb3085867 364 _ds = 0;
taylorza 0:7b3fb3085867 365 _cs = 0;
taylorza 0:7b3fb3085867 366 _spi.write(cmd);
taylorza 0:7b3fb3085867 367 if (data != NULL & dataLen > 0)
taylorza 0:7b3fb3085867 368 {
taylorza 0:7b3fb3085867 369 _ds = 1;
taylorza 0:7b3fb3085867 370 for(int i = 0; i < dataLen; ++i)
taylorza 0:7b3fb3085867 371 {
taylorza 0:7b3fb3085867 372 _spi.write(data[i]);
taylorza 0:7b3fb3085867 373 }
taylorza 0:7b3fb3085867 374 _ds = 0;
taylorza 0:7b3fb3085867 375 }
taylorza 0:7b3fb3085867 376 _cs = 1;
taylorza 0:7b3fb3085867 377 }
taylorza 0:7b3fb3085867 378
taylorza 0:7b3fb3085867 379 void LCD_ST7735::write(uint8_t cmd, uint16_t data)
taylorza 0:7b3fb3085867 380 {
taylorza 0:7b3fb3085867 381 _ds = 0;
taylorza 0:7b3fb3085867 382 _cs = 0;
taylorza 0:7b3fb3085867 383 _spi.write(cmd);
taylorza 0:7b3fb3085867 384 _ds = 1;
taylorza 0:7b3fb3085867 385 _spi.write((data >> 8) & 0xff);
taylorza 0:7b3fb3085867 386 _spi.write(data & 0xff);
taylorza 0:7b3fb3085867 387 _ds = 0;
taylorza 0:7b3fb3085867 388 _cs = 1;
taylorza 0:7b3fb3085867 389 }
taylorza 0:7b3fb3085867 390
taylorza 0:7b3fb3085867 391 void LCD_ST7735::writeData(uint8_t data)
taylorza 0:7b3fb3085867 392 {
taylorza 0:7b3fb3085867 393 _ds = 1;
taylorza 0:7b3fb3085867 394 _cs = 0;
taylorza 0:7b3fb3085867 395 _spi.write(data);
taylorza 0:7b3fb3085867 396 _ds = 0;
taylorza 0:7b3fb3085867 397 _cs = 1;
taylorza 0:7b3fb3085867 398 }
taylorza 0:7b3fb3085867 399
taylorza 0:7b3fb3085867 400 void LCD_ST7735::beginBatchCommand(uint8_t cmd)
taylorza 0:7b3fb3085867 401 {
taylorza 0:7b3fb3085867 402 _ds = 0;
taylorza 0:7b3fb3085867 403 _cs = 0;
taylorza 0:7b3fb3085867 404 _spi.write(cmd);
taylorza 0:7b3fb3085867 405 _ds = 1;
taylorza 0:7b3fb3085867 406 }
taylorza 0:7b3fb3085867 407
taylorza 0:7b3fb3085867 408 void LCD_ST7735::writeBatchData(uint8_t data)
taylorza 0:7b3fb3085867 409 {
taylorza 0:7b3fb3085867 410 _spi.write(data);
taylorza 0:7b3fb3085867 411 }
taylorza 0:7b3fb3085867 412
taylorza 0:7b3fb3085867 413 void LCD_ST7735::writeBatchData(uint16_t data)
taylorza 0:7b3fb3085867 414 {
taylorza 0:7b3fb3085867 415 _spi.write((data >> 8) & 0xff);
taylorza 0:7b3fb3085867 416 _spi.write(data & 0xff);
taylorza 0:7b3fb3085867 417 }
taylorza 0:7b3fb3085867 418
taylorza 0:7b3fb3085867 419 void LCD_ST7735::endBatchCommand()
taylorza 0:7b3fb3085867 420 {
taylorza 0:7b3fb3085867 421 _ds = 0;
taylorza 0:7b3fb3085867 422 _cs = 1;
taylorza 0:7b3fb3085867 423 }