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@9:7ecd74dcb8ef, 2014-10-25 (annotated)

Committer:
taylorza
Date:
Sat Oct 25 04:15:30 2014 +0000
Revision:
9:7ecd74dcb8ef
Parent:
8:12f16befa7e1
Child:
12:146a55dccb22
Removed setPixelFast

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 8:12f16befa7e1 11 PinName csPin,
taylorza 8:12f16befa7e1 12 PanelColorFilter colorFilter
taylorza 8:12f16befa7e1 13 ) :
taylorza 8:12f16befa7e1 14 _colorFilter(colorFilter),
taylorza 0:7b3fb3085867 15 _backlight(backlightPin, 0),
taylorza 0:7b3fb3085867 16 _reset(resetPin, 1),
taylorza 0:7b3fb3085867 17 _ds(dsPin, 0),
taylorza 0:7b3fb3085867 18 _cs(csPin, 1),
taylorza 0:7b3fb3085867 19 _spi(mosiPin, misoPin, clkPin)
taylorza 0:7b3fb3085867 20 {
taylorza 0:7b3fb3085867 21 _spi.format(8, 3);
taylorza 6:67d3d4a953e0 22 _spi.frequency(15000000);
taylorza 0:7b3fb3085867 23
taylorza 0:7b3fb3085867 24 initDisplay();
taylorza 0:7b3fb3085867 25 clearScreen();
taylorza 0:7b3fb3085867 26 setForegroundColor(0xffff);
taylorza 0:7b3fb3085867 27 setBackgroundColor(0x0000);
taylorza 0:7b3fb3085867 28 }
taylorza 0:7b3fb3085867 29
taylorza 3:451148656b76 30 void LCD_ST7735::setOrientation(Orientation orientation, bool flip)
taylorza 3:451148656b76 31 {
taylorza 5:21c987ee68d2 32 const static uint8_t my = 0x80;
taylorza 3:451148656b76 33 const static uint8_t mx = 0x40;
taylorza 3:451148656b76 34 const static uint8_t mv = 0x20;
taylorza 3:451148656b76 35
taylorza 8:12f16befa7e1 36 uint8_t madctlData = _colorFilter;
taylorza 3:451148656b76 37 switch(orientation)
taylorza 3:451148656b76 38 {
taylorza 3:451148656b76 39 case Rotate0:
taylorza 3:451148656b76 40 _width = 128;
taylorza 3:451148656b76 41 _height = 160;
taylorza 3:451148656b76 42 madctlData |= flip ? mx : 0;
taylorza 3:451148656b76 43 break;
taylorza 3:451148656b76 44
taylorza 3:451148656b76 45 case Rotate90:
taylorza 3:451148656b76 46 _width = 160;
taylorza 3:451148656b76 47 _height = 128;
taylorza 3:451148656b76 48 madctlData |= flip ? my | mv | mx : mv | mx;
taylorza 3:451148656b76 49 break;
taylorza 3:451148656b76 50
taylorza 3:451148656b76 51 case Rotate180:
taylorza 3:451148656b76 52 _width = 128;
taylorza 3:451148656b76 53 _height = 160;
taylorza 3:451148656b76 54 madctlData |= flip ? my : mx | my;
taylorza 3:451148656b76 55 break;
taylorza 3:451148656b76 56
taylorza 3:451148656b76 57 case Rotate270:
taylorza 3:451148656b76 58 _width = 160;
taylorza 3:451148656b76 59 _height = 128;
taylorza 3:451148656b76 60 madctlData |= flip ? mv : mv | my;
taylorza 3:451148656b76 61 break;
taylorza 3:451148656b76 62 }
taylorza 3:451148656b76 63 write(CMD_MADCTL, (uint8_t[]){madctlData}, 1);
taylorza 3:451148656b76 64 }
taylorza 3:451148656b76 65
taylorza 3:451148656b76 66 int LCD_ST7735::getWidth()
taylorza 3:451148656b76 67 {
taylorza 3:451148656b76 68 return _width;
taylorza 3:451148656b76 69 }
taylorza 3:451148656b76 70
taylorza 3:451148656b76 71 int LCD_ST7735::getHeight()
taylorza 3:451148656b76 72 {
taylorza 3:451148656b76 73 return _height;
taylorza 3:451148656b76 74 }
taylorza 3:451148656b76 75
taylorza 0:7b3fb3085867 76 void LCD_ST7735::setBacklight(bool state)
taylorza 0:7b3fb3085867 77 {
taylorza 0:7b3fb3085867 78 _backlight = state ? 1 : 0;
taylorza 0:7b3fb3085867 79 }
taylorza 0:7b3fb3085867 80
taylorza 0:7b3fb3085867 81 void LCD_ST7735::clearScreen(uint16_t color)
taylorza 0:7b3fb3085867 82 {
taylorza 3:451148656b76 83 clipRect(0, 0, _width - 1, _height - 1);
taylorza 0:7b3fb3085867 84 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 85 uint8_t colorHigh = color >> 8;
taylorza 4:88d22437119c 86 uint8_t colorLow = color;
taylorza 0:7b3fb3085867 87 for(int i = 0; i < 128 * 160 * 2; ++i)
taylorza 0:7b3fb3085867 88 {
taylorza 4:88d22437119c 89 writeBatchData(colorHigh, colorLow);
taylorza 0:7b3fb3085867 90 }
taylorza 0:7b3fb3085867 91 endBatchCommand();
taylorza 0:7b3fb3085867 92 }
taylorza 0:7b3fb3085867 93
taylorza 0:7b3fb3085867 94 void LCD_ST7735::setPixel(int x, int y, uint16_t color)
taylorza 0:7b3fb3085867 95 {
taylorza 9:7ecd74dcb8ef 96 write(CMD_CASET, (uint8_t[]){0, x, 0, x}, 4);
taylorza 9:7ecd74dcb8ef 97 write(CMD_RASET, (uint8_t[]){0, y, 0, y}, 4);
taylorza 9:7ecd74dcb8ef 98 write(CMD_RAMWR, color);
taylorza 0:7b3fb3085867 99 }
taylorza 0:7b3fb3085867 100
taylorza 0:7b3fb3085867 101 void LCD_ST7735::drawLine(int x1, int y1, int x2, int y2, uint16_t color)
taylorza 0:7b3fb3085867 102 {
taylorza 0:7b3fb3085867 103 int dx = abs(x2 - x1);
taylorza 0:7b3fb3085867 104 int dy = abs(y2 - y1);
taylorza 0:7b3fb3085867 105
taylorza 0:7b3fb3085867 106 if (dx == 0)
taylorza 0:7b3fb3085867 107 {
taylorza 0:7b3fb3085867 108 drawVertLine(x1, y1, y2, color);
taylorza 0:7b3fb3085867 109 return;
taylorza 0:7b3fb3085867 110 }
taylorza 0:7b3fb3085867 111 else if(dy == 0)
taylorza 0:7b3fb3085867 112 {
taylorza 0:7b3fb3085867 113 drawHorizLine(x1, y1, x2, color);
taylorza 0:7b3fb3085867 114 return;
taylorza 0:7b3fb3085867 115 }
taylorza 0:7b3fb3085867 116
taylorza 0:7b3fb3085867 117 int sx = (x1 < x2) ? 1 : -1;
taylorza 0:7b3fb3085867 118 int sy = (y1 < y2) ? 1 : -1;
taylorza 0:7b3fb3085867 119 int err = dx - dy;
taylorza 0:7b3fb3085867 120 while(x1 != x2 || y1 != y2)
taylorza 0:7b3fb3085867 121 {
taylorza 9:7ecd74dcb8ef 122 setPixel(x1, y1, color);
taylorza 0:7b3fb3085867 123 int e2 = err << 1;
taylorza 0:7b3fb3085867 124 if (e2 > -dy)
taylorza 0:7b3fb3085867 125 {
taylorza 0:7b3fb3085867 126 err -= dy;
taylorza 0:7b3fb3085867 127 x1 += sx;
taylorza 0:7b3fb3085867 128 }
taylorza 0:7b3fb3085867 129 if (e2 < dx)
taylorza 0:7b3fb3085867 130 {
taylorza 0:7b3fb3085867 131 err += dx;
taylorza 0:7b3fb3085867 132 y1 += sy;
taylorza 0:7b3fb3085867 133 }
taylorza 0:7b3fb3085867 134 }
taylorza 9:7ecd74dcb8ef 135 setPixel(x2, y2, color);
taylorza 0:7b3fb3085867 136 }
taylorza 0:7b3fb3085867 137
taylorza 0:7b3fb3085867 138 void LCD_ST7735::swap(int &a, int &b)
taylorza 0:7b3fb3085867 139 {
taylorza 0:7b3fb3085867 140 int t = a;
taylorza 0:7b3fb3085867 141 a = b;
taylorza 0:7b3fb3085867 142 b = t;
taylorza 0:7b3fb3085867 143 }
taylorza 0:7b3fb3085867 144
taylorza 0:7b3fb3085867 145 void LCD_ST7735::drawRect(int x1, int y1, int x2, int y2, uint16_t color)
taylorza 0:7b3fb3085867 146 {
taylorza 0:7b3fb3085867 147 if (x1 > x2) swap(x1, x2);
taylorza 0:7b3fb3085867 148 if (y1 > y2) swap(y1, y2);
taylorza 0:7b3fb3085867 149
taylorza 0:7b3fb3085867 150 drawHorizLine(x1, y1, x2, color);
taylorza 0:7b3fb3085867 151 drawHorizLine(x1, y2, x2, color);
taylorza 0:7b3fb3085867 152 drawVertLine(x1, y1, y2, color);
taylorza 0:7b3fb3085867 153 drawVertLine(x2, y1, y2, color);
taylorza 0:7b3fb3085867 154 }
taylorza 0:7b3fb3085867 155
taylorza 0:7b3fb3085867 156 void LCD_ST7735::drawCircle(int x, int y, int r, uint16_t color)
taylorza 0:7b3fb3085867 157 {
taylorza 0:7b3fb3085867 158 int ix = r;
taylorza 0:7b3fb3085867 159 int iy = 0;
taylorza 0:7b3fb3085867 160 int err = 1 - r;
taylorza 0:7b3fb3085867 161
taylorza 0:7b3fb3085867 162 while(ix >= iy)
taylorza 0:7b3fb3085867 163 {
taylorza 9:7ecd74dcb8ef 164 setPixel(x + ix, y + iy, color);
taylorza 9:7ecd74dcb8ef 165 setPixel(x + iy, y + ix, color);
taylorza 9:7ecd74dcb8ef 166 setPixel(x - ix, y + iy, color);
taylorza 9:7ecd74dcb8ef 167 setPixel(x - iy, y + ix, color);
taylorza 9:7ecd74dcb8ef 168 setPixel(x - ix, y - iy, color);
taylorza 9:7ecd74dcb8ef 169 setPixel(x - iy, y - ix, color);
taylorza 9:7ecd74dcb8ef 170 setPixel(x + ix, y - iy, color);
taylorza 9:7ecd74dcb8ef 171 setPixel(x + iy, y - ix, color);
taylorza 0:7b3fb3085867 172 iy++;
taylorza 0:7b3fb3085867 173 if (err < 0)
taylorza 0:7b3fb3085867 174 {
taylorza 0:7b3fb3085867 175 err += 2 * iy + 1;
taylorza 0:7b3fb3085867 176 }
taylorza 0:7b3fb3085867 177 else
taylorza 0:7b3fb3085867 178 {
taylorza 0:7b3fb3085867 179 ix--;
taylorza 0:7b3fb3085867 180 err += 2 * (iy - ix + 1);
taylorza 0:7b3fb3085867 181 }
taylorza 0:7b3fb3085867 182 }
taylorza 0:7b3fb3085867 183 }
taylorza 0:7b3fb3085867 184
taylorza 1:33ff5fad4320 185 void LCD_ST7735::drawEllipse(int x, int y, int rx, int ry, uint16_t color)
taylorza 1:33ff5fad4320 186 {
taylorza 1:33ff5fad4320 187 int a2 = rx * rx;
taylorza 1:33ff5fad4320 188 int b2 = ry * ry;
taylorza 1:33ff5fad4320 189 int fa2 = 4 * a2;
taylorza 1:33ff5fad4320 190 int fb2 = 4 * b2;
taylorza 1:33ff5fad4320 191
taylorza 1:33ff5fad4320 192 int ix, iy, sigma;
taylorza 1:33ff5fad4320 193 for (ix = 0, iy = ry, sigma = 2 * b2 + a2 * (1 - 2 * ry); b2 * ix <= a2 * iy; ix++)
taylorza 1:33ff5fad4320 194 {
taylorza 9:7ecd74dcb8ef 195 setPixel(x + ix, y + iy, color);
taylorza 9:7ecd74dcb8ef 196 setPixel(x - ix, y + iy, color);
taylorza 9:7ecd74dcb8ef 197 setPixel(x + ix, y - iy, color);
taylorza 9:7ecd74dcb8ef 198 setPixel(x - ix, y - iy, color);
taylorza 1:33ff5fad4320 199 if (sigma >= 0)
taylorza 1:33ff5fad4320 200 {
taylorza 1:33ff5fad4320 201 sigma+= fa2 * (1 - iy);
taylorza 1:33ff5fad4320 202 iy--;
taylorza 1:33ff5fad4320 203 }
taylorza 1:33ff5fad4320 204 sigma += b2 * ((4 * ix) + 6);
taylorza 1:33ff5fad4320 205 }
taylorza 1:33ff5fad4320 206
taylorza 1:33ff5fad4320 207 for (ix = rx, iy = 0, sigma = 2 * a2 + b2 * (1 - 2 * rx); a2 * iy <= b2 * ix; iy++)
taylorza 1:33ff5fad4320 208 {
taylorza 9:7ecd74dcb8ef 209 setPixel(x + ix, y + iy, color);
taylorza 9:7ecd74dcb8ef 210 setPixel(x - ix, y + iy, color);
taylorza 9:7ecd74dcb8ef 211 setPixel(x + ix, y - iy, color);
taylorza 9:7ecd74dcb8ef 212 setPixel(x - ix, y - iy, color);
taylorza 1:33ff5fad4320 213 if (sigma >= 0)
taylorza 1:33ff5fad4320 214 {
taylorza 1:33ff5fad4320 215 sigma+= fb2 * (1 - ix);
taylorza 1:33ff5fad4320 216 ix--;
taylorza 1:33ff5fad4320 217 }
taylorza 1:33ff5fad4320 218 sigma += a2 * ((4 * iy) + 6);
taylorza 1:33ff5fad4320 219 }
taylorza 1:33ff5fad4320 220 }
taylorza 4:88d22437119c 221 void LCD_ST7735::fillRect(int x1, int y1, int x2, int y2, uint16_t fillColor)
taylorza 4:88d22437119c 222 {
taylorza 4:88d22437119c 223 clipRect(x1, y1, x2, y2);
taylorza 4:88d22437119c 224 int c = ((x2-x1) * (y2-y1)) << 1;
taylorza 4:88d22437119c 225 uint8_t colorHigh = fillColor >> 8;
taylorza 4:88d22437119c 226 uint8_t colorLow = fillColor;
taylorza 4:88d22437119c 227 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 228 while(c--)
taylorza 4:88d22437119c 229 {
taylorza 4:88d22437119c 230 writeBatchData(colorHigh, colorLow);
taylorza 4:88d22437119c 231 }
taylorza 4:88d22437119c 232 endBatchCommand();
taylorza 4:88d22437119c 233 }
taylorza 1:33ff5fad4320 234
taylorza 0:7b3fb3085867 235 void LCD_ST7735::fillRect(int x1, int y1, int x2, int y2, uint16_t borderColor, uint16_t fillColor)
taylorza 0:7b3fb3085867 236 {
taylorza 0:7b3fb3085867 237 if (x1 > x2) swap(x1, x2);
taylorza 0:7b3fb3085867 238 if (y1 > y2) swap(y1, y2);
taylorza 0:7b3fb3085867 239
taylorza 0:7b3fb3085867 240 drawRect(x1, y1, x2, y2, borderColor);
taylorza 0:7b3fb3085867 241 clipRect(x1 + 1, y1 + 1, x2 - 1, y2 - 1);
taylorza 0:7b3fb3085867 242 int c = ((x2-x1-2) * (y2-y1-2)) << 1;
taylorza 4:88d22437119c 243 uint8_t colorHigh = fillColor >> 8;
taylorza 4:88d22437119c 244 uint8_t colorLow = fillColor;
taylorza 0:7b3fb3085867 245 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 246 while(c--)
taylorza 0:7b3fb3085867 247 {
taylorza 4:88d22437119c 248 writeBatchData(colorHigh, colorLow);
taylorza 0:7b3fb3085867 249 }
taylorza 0:7b3fb3085867 250 endBatchCommand();
taylorza 0:7b3fb3085867 251 }
taylorza 0:7b3fb3085867 252
taylorza 0:7b3fb3085867 253 void LCD_ST7735::fillCircle(int x, int y, int r, uint16_t borderColor, uint16_t fillColor)
taylorza 0:7b3fb3085867 254 {
taylorza 0:7b3fb3085867 255 int ix = r;
taylorza 0:7b3fb3085867 256 int iy = 0;
taylorza 0:7b3fb3085867 257 int err = 1 - r;
taylorza 0:7b3fb3085867 258
taylorza 0:7b3fb3085867 259 while(ix >= iy)
taylorza 0:7b3fb3085867 260 {
taylorza 9:7ecd74dcb8ef 261 setPixel(x - ix, y + iy, borderColor);
taylorza 9:7ecd74dcb8ef 262 setPixel(x + ix, y + iy, borderColor);
taylorza 0:7b3fb3085867 263 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 0:7b3fb3085867 264
taylorza 9:7ecd74dcb8ef 265 setPixel(x - iy, y + ix, borderColor);
taylorza 9:7ecd74dcb8ef 266 setPixel(x + iy, y + ix, borderColor);
taylorza 0:7b3fb3085867 267 drawHorizLine(x - iy + 1, y + ix, x + iy - 1, fillColor);
taylorza 0:7b3fb3085867 268
taylorza 9:7ecd74dcb8ef 269 setPixel(x - ix, y - iy, borderColor);
taylorza 9:7ecd74dcb8ef 270 setPixel(x + ix, y - iy, borderColor);
taylorza 0:7b3fb3085867 271 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 0:7b3fb3085867 272
taylorza 9:7ecd74dcb8ef 273 setPixel(x - iy, y - ix, borderColor);
taylorza 9:7ecd74dcb8ef 274 setPixel(x + iy, y - ix, borderColor);
taylorza 0:7b3fb3085867 275 drawHorizLine(x - iy + 1, y - ix, x + iy - 1, fillColor);
taylorza 0:7b3fb3085867 276 iy++;
taylorza 0:7b3fb3085867 277 if (err < 0)
taylorza 0:7b3fb3085867 278 {
taylorza 0:7b3fb3085867 279 err += 2 * iy + 1;
taylorza 0:7b3fb3085867 280 }
taylorza 0:7b3fb3085867 281 else
taylorza 0:7b3fb3085867 282 {
taylorza 0:7b3fb3085867 283 ix--;
taylorza 0:7b3fb3085867 284 err += 2 * (iy - ix + 1);
taylorza 0:7b3fb3085867 285 }
taylorza 0:7b3fb3085867 286 }
taylorza 0:7b3fb3085867 287 }
taylorza 0:7b3fb3085867 288
taylorza 1:33ff5fad4320 289 void LCD_ST7735::fillEllipse(int x, int y, int rx, int ry, uint16_t borderColor, uint16_t fillColor)
taylorza 1:33ff5fad4320 290 {
taylorza 1:33ff5fad4320 291 int a2 = rx * rx;
taylorza 1:33ff5fad4320 292 int b2 = ry * ry;
taylorza 1:33ff5fad4320 293 int fa2 = 4 * a2;
taylorza 1:33ff5fad4320 294 int fb2 = 4 * b2;
taylorza 1:33ff5fad4320 295
taylorza 1:33ff5fad4320 296 int ix, iy, sigma;
taylorza 1:33ff5fad4320 297 for (ix = 0, iy = ry, sigma = 2 * b2 + a2 * (1 - 2 * ry); b2 * ix <= a2 * iy; ix++)
taylorza 1:33ff5fad4320 298 {
taylorza 9:7ecd74dcb8ef 299 setPixel(x + ix, y + iy, borderColor);
taylorza 9:7ecd74dcb8ef 300 setPixel(x - ix, y + iy, borderColor);
taylorza 1:33ff5fad4320 301 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 302
taylorza 9:7ecd74dcb8ef 303 setPixel(x + ix, y - iy, borderColor);
taylorza 9:7ecd74dcb8ef 304 setPixel(x - ix, y - iy, borderColor);
taylorza 1:33ff5fad4320 305 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 306
taylorza 1:33ff5fad4320 307 if (sigma >= 0)
taylorza 1:33ff5fad4320 308 {
taylorza 1:33ff5fad4320 309 sigma+= fa2 * (1 - iy);
taylorza 1:33ff5fad4320 310 iy--;
taylorza 1:33ff5fad4320 311 }
taylorza 1:33ff5fad4320 312 sigma += b2 * ((4 * ix) + 6);
taylorza 1:33ff5fad4320 313 }
taylorza 1:33ff5fad4320 314
taylorza 1:33ff5fad4320 315 for (ix = rx, iy = 0, sigma = 2 * a2 + b2 * (1 - 2 * rx); a2 * iy <= b2 * ix; iy++)
taylorza 1:33ff5fad4320 316 {
taylorza 9:7ecd74dcb8ef 317 setPixel(x + ix, y + iy, borderColor);
taylorza 9:7ecd74dcb8ef 318 setPixel(x - ix, y + iy, borderColor);
taylorza 1:33ff5fad4320 319 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 320
taylorza 9:7ecd74dcb8ef 321 setPixel(x + ix, y - iy, borderColor);
taylorza 9:7ecd74dcb8ef 322 setPixel(x - ix, y - iy, borderColor);
taylorza 1:33ff5fad4320 323 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 324 if (sigma >= 0)
taylorza 1:33ff5fad4320 325 {
taylorza 1:33ff5fad4320 326 sigma+= fb2 * (1 - ix);
taylorza 1:33ff5fad4320 327 ix--;
taylorza 1:33ff5fad4320 328 }
taylorza 1:33ff5fad4320 329 sigma += a2 * ((4 * iy) + 6);
taylorza 1:33ff5fad4320 330 }
taylorza 1:33ff5fad4320 331 }
taylorza 1:33ff5fad4320 332
taylorza 0:7b3fb3085867 333 void LCD_ST7735::drawBitmap(int x, int y, const uint16_t *pbmp)
taylorza 0:7b3fb3085867 334 {
taylorza 0:7b3fb3085867 335 int w = *pbmp++;
taylorza 0:7b3fb3085867 336 int h = *pbmp++;
taylorza 0:7b3fb3085867 337
taylorza 0:7b3fb3085867 338 clip(x, y, w, h);
taylorza 0:7b3fb3085867 339 int c = w * h;
taylorza 0:7b3fb3085867 340 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 341 while(c--)
taylorza 0:7b3fb3085867 342 {
taylorza 0:7b3fb3085867 343 writeBatchData(*pbmp++);
taylorza 0:7b3fb3085867 344 }
taylorza 0:7b3fb3085867 345 endBatchCommand();
taylorza 0:7b3fb3085867 346 }
taylorza 0:7b3fb3085867 347
taylorza 1:33ff5fad4320 348 void LCD_ST7735::drawBitmap(int x, int y, const uint16_t *pbmp, int srcX, int srcY, int srcWidth, int srcHeight)
taylorza 1:33ff5fad4320 349 {
taylorza 1:33ff5fad4320 350 int w = *pbmp++;
taylorza 1:33ff5fad4320 351 int h = *pbmp++;
taylorza 1:33ff5fad4320 352
taylorza 1:33ff5fad4320 353 clip(x, y, srcWidth, srcHeight);
taylorza 1:33ff5fad4320 354 beginBatchCommand(CMD_RAMWR);
taylorza 1:33ff5fad4320 355 const uint16_t *p = pbmp + srcX + (srcY * w);
taylorza 1:33ff5fad4320 356 for(int iy = 0; iy < srcHeight; ++iy)
taylorza 1:33ff5fad4320 357 {
taylorza 1:33ff5fad4320 358 for(int ix = 0; ix < srcWidth; ++ix)
taylorza 1:33ff5fad4320 359 {
taylorza 1:33ff5fad4320 360 writeBatchData(*(p + ix));
taylorza 1:33ff5fad4320 361 }
taylorza 1:33ff5fad4320 362 p += w;
taylorza 1:33ff5fad4320 363 }
taylorza 1:33ff5fad4320 364 endBatchCommand();
taylorza 1:33ff5fad4320 365 }
taylorza 1:33ff5fad4320 366
taylorza 0:7b3fb3085867 367 void LCD_ST7735::setForegroundColor(uint16_t color)
taylorza 0:7b3fb3085867 368 {
taylorza 4:88d22437119c 369 _foregroundColorHigh = color >> 8;
taylorza 4:88d22437119c 370 _foregroundColorLow = color;
taylorza 0:7b3fb3085867 371 }
taylorza 0:7b3fb3085867 372
taylorza 0:7b3fb3085867 373 void LCD_ST7735::setBackgroundColor(uint16_t color)
taylorza 0:7b3fb3085867 374 {
taylorza 4:88d22437119c 375 _backgroundColorHigh = color >> 8;
taylorza 4:88d22437119c 376 _backgroundColorLow = color;
taylorza 0:7b3fb3085867 377 }
taylorza 0:7b3fb3085867 378
taylorza 0:7b3fb3085867 379 void LCD_ST7735::drawString(const uint8_t *pFont, int x, int y, const char *pString)
taylorza 0:7b3fb3085867 380 {
taylorza 0:7b3fb3085867 381 char *p = (char*)pString;
taylorza 0:7b3fb3085867 382 while(*p != 0)
taylorza 0:7b3fb3085867 383 {
taylorza 0:7b3fb3085867 384 drawChar(pFont, x, y, *p++);
taylorza 0:7b3fb3085867 385 x += 8;
taylorza 0:7b3fb3085867 386 }
taylorza 0:7b3fb3085867 387 }
taylorza 0:7b3fb3085867 388
taylorza 8:12f16befa7e1 389 void LCD_ST7735::selectDevice()
taylorza 8:12f16befa7e1 390 {
taylorza 8:12f16befa7e1 391 _spi.prepareFastSPI();
taylorza 8:12f16befa7e1 392 }
taylorza 8:12f16befa7e1 393
taylorza 0:7b3fb3085867 394 void LCD_ST7735::drawVertLine(int x1, int y1, int y2, uint16_t color)
taylorza 0:7b3fb3085867 395 {
taylorza 0:7b3fb3085867 396 clipRect(x1, y1, x1, y2);
taylorza 0:7b3fb3085867 397 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 398 int c = (y2 - y1) << 1;
taylorza 4:88d22437119c 399 uint8_t colorHigh = color >> 8;
taylorza 4:88d22437119c 400 uint8_t colorLow = color;
taylorza 4:88d22437119c 401 for (int i = 0; i < c; ++i)
taylorza 0:7b3fb3085867 402 {
taylorza 4:88d22437119c 403 writeBatchData(colorHigh, colorLow);
taylorza 0:7b3fb3085867 404 }
taylorza 0:7b3fb3085867 405 endBatchCommand();
taylorza 0:7b3fb3085867 406 }
taylorza 0:7b3fb3085867 407
taylorza 0:7b3fb3085867 408 void LCD_ST7735::drawHorizLine(int x1, int y1, int x2, uint16_t color)
taylorza 0:7b3fb3085867 409 {
taylorza 0:7b3fb3085867 410 clipRect(x1, y1, x2, y1);
taylorza 0:7b3fb3085867 411 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 412 int c = (x2 - x1) << 1;
taylorza 4:88d22437119c 413 uint8_t colorHigh = color >> 8;
taylorza 4:88d22437119c 414 uint8_t colorLow = color;
taylorza 4:88d22437119c 415 for (int i = 0; i < c; ++i)
taylorza 0:7b3fb3085867 416 {
taylorza 4:88d22437119c 417 writeBatchData(colorHigh, colorLow);
taylorza 0:7b3fb3085867 418 }
taylorza 0:7b3fb3085867 419 endBatchCommand();
taylorza 0:7b3fb3085867 420 }
taylorza 0:7b3fb3085867 421
taylorza 0:7b3fb3085867 422 void LCD_ST7735::drawChar(const uint8_t *pFont, int x, int y, char c)
taylorza 0:7b3fb3085867 423 {
taylorza 0:7b3fb3085867 424 const uint8_t *pChar = pFont + (c * 8);
taylorza 0:7b3fb3085867 425
taylorza 0:7b3fb3085867 426 clip(x, y, 8, 8);
taylorza 0:7b3fb3085867 427 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 428 for(int r = 0; r < 8; ++r)
taylorza 0:7b3fb3085867 429 {
taylorza 0:7b3fb3085867 430 uint8_t b = pChar[r];
taylorza 0:7b3fb3085867 431 for(int c = 0; c < 8; ++c)
taylorza 0:7b3fb3085867 432 {
taylorza 0:7b3fb3085867 433 if (b & 0x80)
taylorza 4:88d22437119c 434 {
taylorza 4:88d22437119c 435 writeBatchData(_foregroundColorHigh);
taylorza 4:88d22437119c 436 writeBatchData(_foregroundColorLow);
taylorza 4:88d22437119c 437 }
taylorza 0:7b3fb3085867 438 else
taylorza 4:88d22437119c 439 {
taylorza 4:88d22437119c 440 writeBatchData(_backgroundColorHigh);
taylorza 4:88d22437119c 441 writeBatchData(_backgroundColorLow);
taylorza 4:88d22437119c 442 }
taylorza 0:7b3fb3085867 443
taylorza 0:7b3fb3085867 444 b <<= 1;
taylorza 0:7b3fb3085867 445 }
taylorza 0:7b3fb3085867 446 }
taylorza 0:7b3fb3085867 447 endBatchCommand();
taylorza 0:7b3fb3085867 448 }
taylorza 0:7b3fb3085867 449
taylorza 0:7b3fb3085867 450 void LCD_ST7735::initDisplay()
taylorza 0:7b3fb3085867 451 {
taylorza 8:12f16befa7e1 452 selectDevice();
taylorza 0:7b3fb3085867 453 reset();
taylorza 0:7b3fb3085867 454
taylorza 5:21c987ee68d2 455 writeCommand(CMD_SLPOUT);
taylorza 0:7b3fb3085867 456
taylorza 0:7b3fb3085867 457 write(CMD_FRMCTR1, (uint8_t[]){0x01, 0x2c, 0x2d}, 3);
taylorza 5:21c987ee68d2 458 write(CMD_FRMCTR2, (uint8_t[]){0x01, 0x2c, 0x2d}, 3);
taylorza 5:21c987ee68d2 459 write(CMD_FRMCTR3, (uint8_t[]){0x01, 0x2c, 0x2d, 0x01, 0x2c, 0x2d}, 6);
taylorza 0:7b3fb3085867 460
taylorza 0:7b3fb3085867 461 write(CMD_INVCTR, (uint8_t[]){0x07}, 1);
taylorza 0:7b3fb3085867 462
taylorza 0:7b3fb3085867 463 write(CMD_PWCTR1, (uint8_t[]){0xa2, 0x02, 0x84}, 3);
taylorza 0:7b3fb3085867 464 write(CMD_PWCTR2, (uint8_t[]){0xc5}, 1);
taylorza 0:7b3fb3085867 465 write(CMD_PWCTR3, (uint8_t[]){0x0a, 0x00}, 2);
taylorza 0:7b3fb3085867 466 write(CMD_PWCTR4, (uint8_t[]){0x8a, 0x2a}, 2);
taylorza 0:7b3fb3085867 467 write(CMD_PWCTR5, (uint8_t[]){0x8a, 0xee}, 2);
taylorza 0:7b3fb3085867 468
taylorza 0:7b3fb3085867 469 write(CMD_VMCTR1, (uint8_t[]){0x0e}, 1);
taylorza 0:7b3fb3085867 470
taylorza 8:12f16befa7e1 471 write(CMD_MADCTL, (uint8_t[]){0xc0 | _colorFilter}, 1);
taylorza 0:7b3fb3085867 472
taylorza 0:7b3fb3085867 473 // Gama sequence
taylorza 0:7b3fb3085867 474 write(CMD_GAMCTRP1, (uint8_t[])
taylorza 0:7b3fb3085867 475 {
taylorza 0:7b3fb3085867 476 0x0f, 0x1a,
taylorza 0:7b3fb3085867 477 0x0f, 0x18,
taylorza 0:7b3fb3085867 478 0x2f, 0x28,
taylorza 0:7b3fb3085867 479 0x20, 0x22,
taylorza 0:7b3fb3085867 480 0x1f, 0x1b,
taylorza 0:7b3fb3085867 481 0x23, 0x37,
taylorza 0:7b3fb3085867 482 0x00, 0x07,
taylorza 0:7b3fb3085867 483 0x02, 0x10
taylorza 0:7b3fb3085867 484 }, 16);
taylorza 0:7b3fb3085867 485
taylorza 0:7b3fb3085867 486 write(CMD_GAMCTRN1, (uint8_t[])
taylorza 0:7b3fb3085867 487 {
taylorza 0:7b3fb3085867 488 0x0f, 0x1b,
taylorza 0:7b3fb3085867 489 0x0f, 0x17,
taylorza 0:7b3fb3085867 490 0x33, 0x2c,
taylorza 0:7b3fb3085867 491 0x29, 0x2e,
taylorza 0:7b3fb3085867 492 0x30, 0x30,
taylorza 0:7b3fb3085867 493 0x39, 0x3f,
taylorza 0:7b3fb3085867 494 0x00, 0x07,
taylorza 0:7b3fb3085867 495 0x03, 0x10
taylorza 0:7b3fb3085867 496 }, 16);
taylorza 0:7b3fb3085867 497
taylorza 0:7b3fb3085867 498 write(CMD_CASET, (uint8_t[]){0x00, 0x00, 0x00, 0x7f}, 4);
taylorza 0:7b3fb3085867 499 write(CMD_RASET, (uint8_t[]){0x00, 0x00, 0x00, 0x9f}, 4);
taylorza 0:7b3fb3085867 500
taylorza 0:7b3fb3085867 501 write(CMD_EXTCTRL, (uint8_t[]){0x01}, 1);
taylorza 0:7b3fb3085867 502
taylorza 0:7b3fb3085867 503 // Disable RAM power save
taylorza 0:7b3fb3085867 504 write(0xf6, (uint8_t[]){0x00}, 1);
taylorza 0:7b3fb3085867 505
taylorza 0:7b3fb3085867 506 // 65k color mode
taylorza 0:7b3fb3085867 507 write(CMD_COLMOD, (uint8_t[]){0x05}, 1);
taylorza 0:7b3fb3085867 508
taylorza 0:7b3fb3085867 509 // Enable display
taylorza 5:21c987ee68d2 510 writeCommand(CMD_DISPON);
taylorza 0:7b3fb3085867 511
taylorza 0:7b3fb3085867 512 setBacklight(true);
taylorza 0:7b3fb3085867 513 }
taylorza 0:7b3fb3085867 514
taylorza 0:7b3fb3085867 515 void LCD_ST7735::reset()
taylorza 0:7b3fb3085867 516 {
taylorza 0:7b3fb3085867 517 _reset = 0;
taylorza 0:7b3fb3085867 518 wait_us(100);
taylorza 0:7b3fb3085867 519 _reset = 1;
taylorza 0:7b3fb3085867 520 wait_us(100);
taylorza 0:7b3fb3085867 521 }
taylorza 0:7b3fb3085867 522
taylorza 0:7b3fb3085867 523 void LCD_ST7735::clip(int x, int y, int w, int h)
taylorza 0:7b3fb3085867 524 {
taylorza 0:7b3fb3085867 525 clipRect(x, y, (x + w) - 1, (y + h) - 1);
taylorza 0:7b3fb3085867 526 }
taylorza 0:7b3fb3085867 527
taylorza 0:7b3fb3085867 528 void LCD_ST7735::clipRect(int x1, int y1, int x2, int y2)
taylorza 0:7b3fb3085867 529 {
taylorza 4:88d22437119c 530 uint8_t x1l = (uint8_t)x1;
taylorza 4:88d22437119c 531 uint8_t x1h = (uint8_t)(x1 >> 8);
taylorza 4:88d22437119c 532 uint8_t x2l = (uint8_t)x2;
taylorza 4:88d22437119c 533 uint8_t x2h = (uint8_t)(x2 >> 8);
taylorza 0:7b3fb3085867 534 write(CMD_CASET, (uint8_t[]){x1h, x1l, x2h, x2l}, 4);
taylorza 0:7b3fb3085867 535
taylorza 4:88d22437119c 536 uint8_t y1l = (uint8_t)y1;
taylorza 4:88d22437119c 537 uint8_t y1h = (uint8_t)(y1 >> 8);
taylorza 4:88d22437119c 538 uint8_t y2l = (uint8_t)y2;
taylorza 4:88d22437119c 539 uint8_t y2h = (uint8_t)(y2 >> 8);
taylorza 0:7b3fb3085867 540 write(CMD_RASET, (uint8_t[]){y1h, y1l, y2h, y2l}, 4);
taylorza 0:7b3fb3085867 541 }
taylorza 5:21c987ee68d2 542
taylorza 5:21c987ee68d2 543 void LCD_ST7735::writeCommand(uint8_t cmd)
taylorza 0:7b3fb3085867 544 {
taylorza 5:21c987ee68d2 545 _cs = 0;
taylorza 5:21c987ee68d2 546 _ds = 0;
taylorza 5:21c987ee68d2 547 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 548 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 549 _spi.clearRx();
taylorza 5:21c987ee68d2 550 _cs = 1;
taylorza 0:7b3fb3085867 551 }
taylorza 0:7b3fb3085867 552
taylorza 0:7b3fb3085867 553 void LCD_ST7735::write(uint8_t cmd, uint8_t data[], int dataLen)
taylorza 0:7b3fb3085867 554 {
taylorza 0:7b3fb3085867 555 _cs = 0;
taylorza 5:21c987ee68d2 556 _ds = 0;
taylorza 5:21c987ee68d2 557 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 558 _spi.waitWhileBusy();
taylorza 0:7b3fb3085867 559 if (data != NULL & dataLen > 0)
taylorza 0:7b3fb3085867 560 {
taylorza 0:7b3fb3085867 561 _ds = 1;
taylorza 0:7b3fb3085867 562 for(int i = 0; i < dataLen; ++i)
taylorza 0:7b3fb3085867 563 {
taylorza 5:21c987ee68d2 564 _spi.fastWrite(data[i]);
taylorza 0:7b3fb3085867 565 }
taylorza 5:21c987ee68d2 566 _spi.waitWhileBusy();
taylorza 0:7b3fb3085867 567 _ds = 0;
taylorza 0:7b3fb3085867 568 }
taylorza 5:21c987ee68d2 569 _spi.clearRx();
taylorza 5:21c987ee68d2 570 _cs = 1;
taylorza 0:7b3fb3085867 571 }
taylorza 0:7b3fb3085867 572
taylorza 0:7b3fb3085867 573 void LCD_ST7735::write(uint8_t cmd, uint16_t data)
taylorza 0:7b3fb3085867 574 {
taylorza 5:21c987ee68d2 575 _cs = 0;
taylorza 5:21c987ee68d2 576 _ds = 0;
taylorza 5:21c987ee68d2 577 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 578 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 579 _ds = 1;
taylorza 5:21c987ee68d2 580 _spi.fastWrite(data >> 8);
taylorza 5:21c987ee68d2 581 _spi.fastWrite(data);
taylorza 5:21c987ee68d2 582 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 583 _spi.clearRx();
taylorza 5:21c987ee68d2 584 _ds = 0;
taylorza 0:7b3fb3085867 585 _cs = 1;
taylorza 0:7b3fb3085867 586 }
taylorza 0:7b3fb3085867 587
taylorza 0:7b3fb3085867 588 void LCD_ST7735::beginBatchCommand(uint8_t cmd)
taylorza 0:7b3fb3085867 589 {
taylorza 0:7b3fb3085867 590 _cs = 0;
taylorza 5:21c987ee68d2 591 _ds = 0;
taylorza 5:21c987ee68d2 592 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 593 _spi.waitWhileBusy();
taylorza 0:7b3fb3085867 594 _ds = 1;
taylorza 0:7b3fb3085867 595 }
taylorza 0:7b3fb3085867 596
taylorza 0:7b3fb3085867 597 void LCD_ST7735::writeBatchData(uint8_t data)
taylorza 0:7b3fb3085867 598 {
taylorza 5:21c987ee68d2 599 _spi.fastWrite(data);
taylorza 0:7b3fb3085867 600 }
taylorza 0:7b3fb3085867 601
taylorza 4:88d22437119c 602 void LCD_ST7735::writeBatchData(uint8_t dataHigh, uint8_t dataLow)
taylorza 4:88d22437119c 603 {
taylorza 5:21c987ee68d2 604 _spi.fastWrite(dataHigh);
taylorza 5:21c987ee68d2 605 _spi.fastWrite(dataLow);
taylorza 4:88d22437119c 606 }
taylorza 4:88d22437119c 607
taylorza 4:88d22437119c 608
taylorza 0:7b3fb3085867 609 void LCD_ST7735::writeBatchData(uint16_t data)
taylorza 0:7b3fb3085867 610 {
taylorza 5:21c987ee68d2 611 _spi.fastWrite(data >> 8);
taylorza 5:21c987ee68d2 612 _spi.fastWrite(data);
taylorza 0:7b3fb3085867 613 }
taylorza 0:7b3fb3085867 614
taylorza 0:7b3fb3085867 615 void LCD_ST7735::endBatchCommand()
taylorza 0:7b3fb3085867 616 {
taylorza 5:21c987ee68d2 617 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 618 _spi.clearRx();
taylorza 0:7b3fb3085867 619 _ds = 0;
taylorza 0:7b3fb3085867 620 _cs = 1;
taylorza 4:88d22437119c 621 }
taylorza 7:f39c980a589c 622