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@12:146a55dccb22, 2015-01-25 (annotated)

Committer:
taylorza
Date:
Sun Jan 25 06:53:17 2015 +0000
Revision:
12:146a55dccb22
Parent:
9:7ecd74dcb8ef
Child:
13:a559617cdf94
Fixed a bug in FillRect taking a border and fill color that would overflow if the rect was less that 3 wide or high.

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 12:146a55dccb22 223 if (x1 > x2) swap(x1, x2);
taylorza 12:146a55dccb22 224 if (y1 > y2) swap(y1, y2);
taylorza 12:146a55dccb22 225
taylorza 4:88d22437119c 226 clipRect(x1, y1, x2, y2);
taylorza 4:88d22437119c 227 int c = ((x2-x1) * (y2-y1)) << 1;
taylorza 4:88d22437119c 228 uint8_t colorHigh = fillColor >> 8;
taylorza 4:88d22437119c 229 uint8_t colorLow = fillColor;
taylorza 4:88d22437119c 230 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 231 while(c--)
taylorza 4:88d22437119c 232 {
taylorza 4:88d22437119c 233 writeBatchData(colorHigh, colorLow);
taylorza 4:88d22437119c 234 }
taylorza 4:88d22437119c 235 endBatchCommand();
taylorza 4:88d22437119c 236 }
taylorza 1:33ff5fad4320 237
taylorza 0:7b3fb3085867 238 void LCD_ST7735::fillRect(int x1, int y1, int x2, int y2, uint16_t borderColor, uint16_t fillColor)
taylorza 0:7b3fb3085867 239 {
taylorza 0:7b3fb3085867 240 if (x1 > x2) swap(x1, x2);
taylorza 0:7b3fb3085867 241 if (y1 > y2) swap(y1, y2);
taylorza 0:7b3fb3085867 242
taylorza 0:7b3fb3085867 243 drawRect(x1, y1, x2, y2, borderColor);
taylorza 12:146a55dccb22 244 ++x1; ++y1; --x2; --y2;
taylorza 12:146a55dccb22 245 if (x2 >= x1 && y2 >= y1)
taylorza 0:7b3fb3085867 246 {
taylorza 12:146a55dccb22 247 clipRect(x1, y1, x2, y2);
taylorza 12:146a55dccb22 248 int c = ((x2-x1-2) * (y2-y1-2)) << 1;
taylorza 12:146a55dccb22 249 uint8_t colorHigh = fillColor >> 8;
taylorza 12:146a55dccb22 250 uint8_t colorLow = fillColor;
taylorza 12:146a55dccb22 251 beginBatchCommand(CMD_RAMWR);
taylorza 12:146a55dccb22 252 while(c--)
taylorza 12:146a55dccb22 253 {
taylorza 12:146a55dccb22 254 writeBatchData(colorHigh, colorLow);
taylorza 12:146a55dccb22 255 }
taylorza 12:146a55dccb22 256 endBatchCommand();
taylorza 0:7b3fb3085867 257 }
taylorza 0:7b3fb3085867 258 }
taylorza 0:7b3fb3085867 259
taylorza 0:7b3fb3085867 260 void LCD_ST7735::fillCircle(int x, int y, int r, uint16_t borderColor, uint16_t fillColor)
taylorza 0:7b3fb3085867 261 {
taylorza 0:7b3fb3085867 262 int ix = r;
taylorza 0:7b3fb3085867 263 int iy = 0;
taylorza 0:7b3fb3085867 264 int err = 1 - r;
taylorza 0:7b3fb3085867 265
taylorza 0:7b3fb3085867 266 while(ix >= iy)
taylorza 0:7b3fb3085867 267 {
taylorza 9:7ecd74dcb8ef 268 setPixel(x - ix, y + iy, borderColor);
taylorza 9:7ecd74dcb8ef 269 setPixel(x + ix, y + iy, borderColor);
taylorza 0:7b3fb3085867 270 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 0:7b3fb3085867 271
taylorza 9:7ecd74dcb8ef 272 setPixel(x - iy, y + ix, borderColor);
taylorza 9:7ecd74dcb8ef 273 setPixel(x + iy, y + ix, borderColor);
taylorza 0:7b3fb3085867 274 drawHorizLine(x - iy + 1, y + ix, x + iy - 1, fillColor);
taylorza 0:7b3fb3085867 275
taylorza 9:7ecd74dcb8ef 276 setPixel(x - ix, y - iy, borderColor);
taylorza 9:7ecd74dcb8ef 277 setPixel(x + ix, y - iy, borderColor);
taylorza 0:7b3fb3085867 278 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 0:7b3fb3085867 279
taylorza 9:7ecd74dcb8ef 280 setPixel(x - iy, y - ix, borderColor);
taylorza 9:7ecd74dcb8ef 281 setPixel(x + iy, y - ix, borderColor);
taylorza 0:7b3fb3085867 282 drawHorizLine(x - iy + 1, y - ix, x + iy - 1, fillColor);
taylorza 0:7b3fb3085867 283 iy++;
taylorza 0:7b3fb3085867 284 if (err < 0)
taylorza 0:7b3fb3085867 285 {
taylorza 0:7b3fb3085867 286 err += 2 * iy + 1;
taylorza 0:7b3fb3085867 287 }
taylorza 0:7b3fb3085867 288 else
taylorza 0:7b3fb3085867 289 {
taylorza 0:7b3fb3085867 290 ix--;
taylorza 0:7b3fb3085867 291 err += 2 * (iy - ix + 1);
taylorza 0:7b3fb3085867 292 }
taylorza 0:7b3fb3085867 293 }
taylorza 0:7b3fb3085867 294 }
taylorza 0:7b3fb3085867 295
taylorza 1:33ff5fad4320 296 void LCD_ST7735::fillEllipse(int x, int y, int rx, int ry, uint16_t borderColor, uint16_t fillColor)
taylorza 1:33ff5fad4320 297 {
taylorza 1:33ff5fad4320 298 int a2 = rx * rx;
taylorza 1:33ff5fad4320 299 int b2 = ry * ry;
taylorza 1:33ff5fad4320 300 int fa2 = 4 * a2;
taylorza 1:33ff5fad4320 301 int fb2 = 4 * b2;
taylorza 1:33ff5fad4320 302
taylorza 1:33ff5fad4320 303 int ix, iy, sigma;
taylorza 1:33ff5fad4320 304 for (ix = 0, iy = ry, sigma = 2 * b2 + a2 * (1 - 2 * ry); b2 * ix <= a2 * iy; ix++)
taylorza 1:33ff5fad4320 305 {
taylorza 9:7ecd74dcb8ef 306 setPixel(x + ix, y + iy, borderColor);
taylorza 9:7ecd74dcb8ef 307 setPixel(x - ix, y + iy, borderColor);
taylorza 1:33ff5fad4320 308 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 309
taylorza 9:7ecd74dcb8ef 310 setPixel(x + ix, y - iy, borderColor);
taylorza 9:7ecd74dcb8ef 311 setPixel(x - ix, y - iy, borderColor);
taylorza 1:33ff5fad4320 312 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 313
taylorza 1:33ff5fad4320 314 if (sigma >= 0)
taylorza 1:33ff5fad4320 315 {
taylorza 1:33ff5fad4320 316 sigma+= fa2 * (1 - iy);
taylorza 1:33ff5fad4320 317 iy--;
taylorza 1:33ff5fad4320 318 }
taylorza 1:33ff5fad4320 319 sigma += b2 * ((4 * ix) + 6);
taylorza 1:33ff5fad4320 320 }
taylorza 1:33ff5fad4320 321
taylorza 1:33ff5fad4320 322 for (ix = rx, iy = 0, sigma = 2 * a2 + b2 * (1 - 2 * rx); a2 * iy <= b2 * ix; iy++)
taylorza 1:33ff5fad4320 323 {
taylorza 9:7ecd74dcb8ef 324 setPixel(x + ix, y + iy, borderColor);
taylorza 9:7ecd74dcb8ef 325 setPixel(x - ix, y + iy, borderColor);
taylorza 1:33ff5fad4320 326 drawHorizLine(x - ix + 1, y + iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 327
taylorza 9:7ecd74dcb8ef 328 setPixel(x + ix, y - iy, borderColor);
taylorza 9:7ecd74dcb8ef 329 setPixel(x - ix, y - iy, borderColor);
taylorza 1:33ff5fad4320 330 drawHorizLine(x - ix + 1, y - iy, x + ix - 1, fillColor);
taylorza 1:33ff5fad4320 331 if (sigma >= 0)
taylorza 1:33ff5fad4320 332 {
taylorza 1:33ff5fad4320 333 sigma+= fb2 * (1 - ix);
taylorza 1:33ff5fad4320 334 ix--;
taylorza 1:33ff5fad4320 335 }
taylorza 1:33ff5fad4320 336 sigma += a2 * ((4 * iy) + 6);
taylorza 1:33ff5fad4320 337 }
taylorza 1:33ff5fad4320 338 }
taylorza 1:33ff5fad4320 339
taylorza 0:7b3fb3085867 340 void LCD_ST7735::drawBitmap(int x, int y, const uint16_t *pbmp)
taylorza 0:7b3fb3085867 341 {
taylorza 0:7b3fb3085867 342 int w = *pbmp++;
taylorza 0:7b3fb3085867 343 int h = *pbmp++;
taylorza 0:7b3fb3085867 344
taylorza 0:7b3fb3085867 345 clip(x, y, w, h);
taylorza 0:7b3fb3085867 346 int c = w * h;
taylorza 0:7b3fb3085867 347 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 348 while(c--)
taylorza 0:7b3fb3085867 349 {
taylorza 0:7b3fb3085867 350 writeBatchData(*pbmp++);
taylorza 0:7b3fb3085867 351 }
taylorza 0:7b3fb3085867 352 endBatchCommand();
taylorza 0:7b3fb3085867 353 }
taylorza 0:7b3fb3085867 354
taylorza 1:33ff5fad4320 355 void LCD_ST7735::drawBitmap(int x, int y, const uint16_t *pbmp, int srcX, int srcY, int srcWidth, int srcHeight)
taylorza 1:33ff5fad4320 356 {
taylorza 1:33ff5fad4320 357 int w = *pbmp++;
taylorza 1:33ff5fad4320 358 int h = *pbmp++;
taylorza 1:33ff5fad4320 359
taylorza 1:33ff5fad4320 360 clip(x, y, srcWidth, srcHeight);
taylorza 1:33ff5fad4320 361 beginBatchCommand(CMD_RAMWR);
taylorza 1:33ff5fad4320 362 const uint16_t *p = pbmp + srcX + (srcY * w);
taylorza 1:33ff5fad4320 363 for(int iy = 0; iy < srcHeight; ++iy)
taylorza 1:33ff5fad4320 364 {
taylorza 1:33ff5fad4320 365 for(int ix = 0; ix < srcWidth; ++ix)
taylorza 1:33ff5fad4320 366 {
taylorza 1:33ff5fad4320 367 writeBatchData(*(p + ix));
taylorza 1:33ff5fad4320 368 }
taylorza 1:33ff5fad4320 369 p += w;
taylorza 1:33ff5fad4320 370 }
taylorza 1:33ff5fad4320 371 endBatchCommand();
taylorza 1:33ff5fad4320 372 }
taylorza 1:33ff5fad4320 373
taylorza 0:7b3fb3085867 374 void LCD_ST7735::setForegroundColor(uint16_t color)
taylorza 0:7b3fb3085867 375 {
taylorza 4:88d22437119c 376 _foregroundColorHigh = color >> 8;
taylorza 4:88d22437119c 377 _foregroundColorLow = color;
taylorza 0:7b3fb3085867 378 }
taylorza 0:7b3fb3085867 379
taylorza 0:7b3fb3085867 380 void LCD_ST7735::setBackgroundColor(uint16_t color)
taylorza 0:7b3fb3085867 381 {
taylorza 4:88d22437119c 382 _backgroundColorHigh = color >> 8;
taylorza 4:88d22437119c 383 _backgroundColorLow = color;
taylorza 0:7b3fb3085867 384 }
taylorza 0:7b3fb3085867 385
taylorza 0:7b3fb3085867 386 void LCD_ST7735::drawString(const uint8_t *pFont, int x, int y, const char *pString)
taylorza 0:7b3fb3085867 387 {
taylorza 0:7b3fb3085867 388 char *p = (char*)pString;
taylorza 0:7b3fb3085867 389 while(*p != 0)
taylorza 0:7b3fb3085867 390 {
taylorza 0:7b3fb3085867 391 drawChar(pFont, x, y, *p++);
taylorza 0:7b3fb3085867 392 x += 8;
taylorza 0:7b3fb3085867 393 }
taylorza 0:7b3fb3085867 394 }
taylorza 0:7b3fb3085867 395
taylorza 8:12f16befa7e1 396 void LCD_ST7735::selectDevice()
taylorza 8:12f16befa7e1 397 {
taylorza 8:12f16befa7e1 398 _spi.prepareFastSPI();
taylorza 8:12f16befa7e1 399 }
taylorza 8:12f16befa7e1 400
taylorza 0:7b3fb3085867 401 void LCD_ST7735::drawVertLine(int x1, int y1, int y2, uint16_t color)
taylorza 0:7b3fb3085867 402 {
taylorza 0:7b3fb3085867 403 clipRect(x1, y1, x1, y2);
taylorza 0:7b3fb3085867 404 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 405 int c = (y2 - y1) << 1;
taylorza 4:88d22437119c 406 uint8_t colorHigh = color >> 8;
taylorza 4:88d22437119c 407 uint8_t colorLow = color;
taylorza 4:88d22437119c 408 for (int i = 0; i < c; ++i)
taylorza 0:7b3fb3085867 409 {
taylorza 4:88d22437119c 410 writeBatchData(colorHigh, colorLow);
taylorza 0:7b3fb3085867 411 }
taylorza 0:7b3fb3085867 412 endBatchCommand();
taylorza 0:7b3fb3085867 413 }
taylorza 0:7b3fb3085867 414
taylorza 0:7b3fb3085867 415 void LCD_ST7735::drawHorizLine(int x1, int y1, int x2, uint16_t color)
taylorza 0:7b3fb3085867 416 {
taylorza 0:7b3fb3085867 417 clipRect(x1, y1, x2, y1);
taylorza 0:7b3fb3085867 418 beginBatchCommand(CMD_RAMWR);
taylorza 4:88d22437119c 419 int c = (x2 - x1) << 1;
taylorza 4:88d22437119c 420 uint8_t colorHigh = color >> 8;
taylorza 4:88d22437119c 421 uint8_t colorLow = color;
taylorza 4:88d22437119c 422 for (int i = 0; i < c; ++i)
taylorza 0:7b3fb3085867 423 {
taylorza 4:88d22437119c 424 writeBatchData(colorHigh, colorLow);
taylorza 0:7b3fb3085867 425 }
taylorza 0:7b3fb3085867 426 endBatchCommand();
taylorza 0:7b3fb3085867 427 }
taylorza 0:7b3fb3085867 428
taylorza 0:7b3fb3085867 429 void LCD_ST7735::drawChar(const uint8_t *pFont, int x, int y, char c)
taylorza 0:7b3fb3085867 430 {
taylorza 0:7b3fb3085867 431 const uint8_t *pChar = pFont + (c * 8);
taylorza 0:7b3fb3085867 432
taylorza 0:7b3fb3085867 433 clip(x, y, 8, 8);
taylorza 0:7b3fb3085867 434 beginBatchCommand(CMD_RAMWR);
taylorza 0:7b3fb3085867 435 for(int r = 0; r < 8; ++r)
taylorza 0:7b3fb3085867 436 {
taylorza 0:7b3fb3085867 437 uint8_t b = pChar[r];
taylorza 0:7b3fb3085867 438 for(int c = 0; c < 8; ++c)
taylorza 0:7b3fb3085867 439 {
taylorza 0:7b3fb3085867 440 if (b & 0x80)
taylorza 4:88d22437119c 441 {
taylorza 4:88d22437119c 442 writeBatchData(_foregroundColorHigh);
taylorza 4:88d22437119c 443 writeBatchData(_foregroundColorLow);
taylorza 4:88d22437119c 444 }
taylorza 0:7b3fb3085867 445 else
taylorza 4:88d22437119c 446 {
taylorza 4:88d22437119c 447 writeBatchData(_backgroundColorHigh);
taylorza 4:88d22437119c 448 writeBatchData(_backgroundColorLow);
taylorza 4:88d22437119c 449 }
taylorza 0:7b3fb3085867 450
taylorza 0:7b3fb3085867 451 b <<= 1;
taylorza 0:7b3fb3085867 452 }
taylorza 0:7b3fb3085867 453 }
taylorza 0:7b3fb3085867 454 endBatchCommand();
taylorza 0:7b3fb3085867 455 }
taylorza 0:7b3fb3085867 456
taylorza 0:7b3fb3085867 457 void LCD_ST7735::initDisplay()
taylorza 0:7b3fb3085867 458 {
taylorza 8:12f16befa7e1 459 selectDevice();
taylorza 0:7b3fb3085867 460 reset();
taylorza 0:7b3fb3085867 461
taylorza 5:21c987ee68d2 462 writeCommand(CMD_SLPOUT);
taylorza 0:7b3fb3085867 463
taylorza 0:7b3fb3085867 464 write(CMD_FRMCTR1, (uint8_t[]){0x01, 0x2c, 0x2d}, 3);
taylorza 5:21c987ee68d2 465 write(CMD_FRMCTR2, (uint8_t[]){0x01, 0x2c, 0x2d}, 3);
taylorza 5:21c987ee68d2 466 write(CMD_FRMCTR3, (uint8_t[]){0x01, 0x2c, 0x2d, 0x01, 0x2c, 0x2d}, 6);
taylorza 0:7b3fb3085867 467
taylorza 0:7b3fb3085867 468 write(CMD_INVCTR, (uint8_t[]){0x07}, 1);
taylorza 0:7b3fb3085867 469
taylorza 0:7b3fb3085867 470 write(CMD_PWCTR1, (uint8_t[]){0xa2, 0x02, 0x84}, 3);
taylorza 0:7b3fb3085867 471 write(CMD_PWCTR2, (uint8_t[]){0xc5}, 1);
taylorza 0:7b3fb3085867 472 write(CMD_PWCTR3, (uint8_t[]){0x0a, 0x00}, 2);
taylorza 0:7b3fb3085867 473 write(CMD_PWCTR4, (uint8_t[]){0x8a, 0x2a}, 2);
taylorza 0:7b3fb3085867 474 write(CMD_PWCTR5, (uint8_t[]){0x8a, 0xee}, 2);
taylorza 0:7b3fb3085867 475
taylorza 0:7b3fb3085867 476 write(CMD_VMCTR1, (uint8_t[]){0x0e}, 1);
taylorza 0:7b3fb3085867 477
taylorza 8:12f16befa7e1 478 write(CMD_MADCTL, (uint8_t[]){0xc0 | _colorFilter}, 1);
taylorza 0:7b3fb3085867 479
taylorza 0:7b3fb3085867 480 // Gama sequence
taylorza 0:7b3fb3085867 481 write(CMD_GAMCTRP1, (uint8_t[])
taylorza 0:7b3fb3085867 482 {
taylorza 0:7b3fb3085867 483 0x0f, 0x1a,
taylorza 0:7b3fb3085867 484 0x0f, 0x18,
taylorza 0:7b3fb3085867 485 0x2f, 0x28,
taylorza 0:7b3fb3085867 486 0x20, 0x22,
taylorza 0:7b3fb3085867 487 0x1f, 0x1b,
taylorza 0:7b3fb3085867 488 0x23, 0x37,
taylorza 0:7b3fb3085867 489 0x00, 0x07,
taylorza 0:7b3fb3085867 490 0x02, 0x10
taylorza 0:7b3fb3085867 491 }, 16);
taylorza 0:7b3fb3085867 492
taylorza 0:7b3fb3085867 493 write(CMD_GAMCTRN1, (uint8_t[])
taylorza 0:7b3fb3085867 494 {
taylorza 0:7b3fb3085867 495 0x0f, 0x1b,
taylorza 0:7b3fb3085867 496 0x0f, 0x17,
taylorza 0:7b3fb3085867 497 0x33, 0x2c,
taylorza 0:7b3fb3085867 498 0x29, 0x2e,
taylorza 0:7b3fb3085867 499 0x30, 0x30,
taylorza 0:7b3fb3085867 500 0x39, 0x3f,
taylorza 0:7b3fb3085867 501 0x00, 0x07,
taylorza 0:7b3fb3085867 502 0x03, 0x10
taylorza 0:7b3fb3085867 503 }, 16);
taylorza 0:7b3fb3085867 504
taylorza 0:7b3fb3085867 505 write(CMD_CASET, (uint8_t[]){0x00, 0x00, 0x00, 0x7f}, 4);
taylorza 0:7b3fb3085867 506 write(CMD_RASET, (uint8_t[]){0x00, 0x00, 0x00, 0x9f}, 4);
taylorza 0:7b3fb3085867 507
taylorza 0:7b3fb3085867 508 write(CMD_EXTCTRL, (uint8_t[]){0x01}, 1);
taylorza 0:7b3fb3085867 509
taylorza 0:7b3fb3085867 510 // Disable RAM power save
taylorza 0:7b3fb3085867 511 write(0xf6, (uint8_t[]){0x00}, 1);
taylorza 0:7b3fb3085867 512
taylorza 0:7b3fb3085867 513 // 65k color mode
taylorza 0:7b3fb3085867 514 write(CMD_COLMOD, (uint8_t[]){0x05}, 1);
taylorza 0:7b3fb3085867 515
taylorza 0:7b3fb3085867 516 // Enable display
taylorza 5:21c987ee68d2 517 writeCommand(CMD_DISPON);
taylorza 0:7b3fb3085867 518
taylorza 0:7b3fb3085867 519 setBacklight(true);
taylorza 0:7b3fb3085867 520 }
taylorza 0:7b3fb3085867 521
taylorza 0:7b3fb3085867 522 void LCD_ST7735::reset()
taylorza 0:7b3fb3085867 523 {
taylorza 0:7b3fb3085867 524 _reset = 0;
taylorza 0:7b3fb3085867 525 wait_us(100);
taylorza 0:7b3fb3085867 526 _reset = 1;
taylorza 0:7b3fb3085867 527 wait_us(100);
taylorza 0:7b3fb3085867 528 }
taylorza 0:7b3fb3085867 529
taylorza 0:7b3fb3085867 530 void LCD_ST7735::clip(int x, int y, int w, int h)
taylorza 0:7b3fb3085867 531 {
taylorza 0:7b3fb3085867 532 clipRect(x, y, (x + w) - 1, (y + h) - 1);
taylorza 0:7b3fb3085867 533 }
taylorza 0:7b3fb3085867 534
taylorza 0:7b3fb3085867 535 void LCD_ST7735::clipRect(int x1, int y1, int x2, int y2)
taylorza 0:7b3fb3085867 536 {
taylorza 4:88d22437119c 537 uint8_t x1l = (uint8_t)x1;
taylorza 4:88d22437119c 538 uint8_t x1h = (uint8_t)(x1 >> 8);
taylorza 4:88d22437119c 539 uint8_t x2l = (uint8_t)x2;
taylorza 4:88d22437119c 540 uint8_t x2h = (uint8_t)(x2 >> 8);
taylorza 0:7b3fb3085867 541 write(CMD_CASET, (uint8_t[]){x1h, x1l, x2h, x2l}, 4);
taylorza 0:7b3fb3085867 542
taylorza 4:88d22437119c 543 uint8_t y1l = (uint8_t)y1;
taylorza 4:88d22437119c 544 uint8_t y1h = (uint8_t)(y1 >> 8);
taylorza 4:88d22437119c 545 uint8_t y2l = (uint8_t)y2;
taylorza 4:88d22437119c 546 uint8_t y2h = (uint8_t)(y2 >> 8);
taylorza 0:7b3fb3085867 547 write(CMD_RASET, (uint8_t[]){y1h, y1l, y2h, y2l}, 4);
taylorza 0:7b3fb3085867 548 }
taylorza 5:21c987ee68d2 549
taylorza 5:21c987ee68d2 550 void LCD_ST7735::writeCommand(uint8_t cmd)
taylorza 0:7b3fb3085867 551 {
taylorza 5:21c987ee68d2 552 _cs = 0;
taylorza 5:21c987ee68d2 553 _ds = 0;
taylorza 5:21c987ee68d2 554 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 555 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 556 _spi.clearRx();
taylorza 5:21c987ee68d2 557 _cs = 1;
taylorza 0:7b3fb3085867 558 }
taylorza 0:7b3fb3085867 559
taylorza 0:7b3fb3085867 560 void LCD_ST7735::write(uint8_t cmd, uint8_t data[], int dataLen)
taylorza 0:7b3fb3085867 561 {
taylorza 0:7b3fb3085867 562 _cs = 0;
taylorza 5:21c987ee68d2 563 _ds = 0;
taylorza 5:21c987ee68d2 564 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 565 _spi.waitWhileBusy();
taylorza 0:7b3fb3085867 566 if (data != NULL & dataLen > 0)
taylorza 0:7b3fb3085867 567 {
taylorza 0:7b3fb3085867 568 _ds = 1;
taylorza 0:7b3fb3085867 569 for(int i = 0; i < dataLen; ++i)
taylorza 0:7b3fb3085867 570 {
taylorza 5:21c987ee68d2 571 _spi.fastWrite(data[i]);
taylorza 0:7b3fb3085867 572 }
taylorza 5:21c987ee68d2 573 _spi.waitWhileBusy();
taylorza 0:7b3fb3085867 574 _ds = 0;
taylorza 0:7b3fb3085867 575 }
taylorza 5:21c987ee68d2 576 _spi.clearRx();
taylorza 5:21c987ee68d2 577 _cs = 1;
taylorza 0:7b3fb3085867 578 }
taylorza 0:7b3fb3085867 579
taylorza 0:7b3fb3085867 580 void LCD_ST7735::write(uint8_t cmd, uint16_t data)
taylorza 0:7b3fb3085867 581 {
taylorza 5:21c987ee68d2 582 _cs = 0;
taylorza 5:21c987ee68d2 583 _ds = 0;
taylorza 5:21c987ee68d2 584 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 585 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 586 _ds = 1;
taylorza 5:21c987ee68d2 587 _spi.fastWrite(data >> 8);
taylorza 5:21c987ee68d2 588 _spi.fastWrite(data);
taylorza 5:21c987ee68d2 589 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 590 _spi.clearRx();
taylorza 5:21c987ee68d2 591 _ds = 0;
taylorza 0:7b3fb3085867 592 _cs = 1;
taylorza 0:7b3fb3085867 593 }
taylorza 0:7b3fb3085867 594
taylorza 0:7b3fb3085867 595 void LCD_ST7735::beginBatchCommand(uint8_t cmd)
taylorza 0:7b3fb3085867 596 {
taylorza 0:7b3fb3085867 597 _cs = 0;
taylorza 5:21c987ee68d2 598 _ds = 0;
taylorza 5:21c987ee68d2 599 _spi.fastWrite(cmd);
taylorza 5:21c987ee68d2 600 _spi.waitWhileBusy();
taylorza 0:7b3fb3085867 601 _ds = 1;
taylorza 0:7b3fb3085867 602 }
taylorza 0:7b3fb3085867 603
taylorza 0:7b3fb3085867 604 void LCD_ST7735::writeBatchData(uint8_t data)
taylorza 0:7b3fb3085867 605 {
taylorza 5:21c987ee68d2 606 _spi.fastWrite(data);
taylorza 0:7b3fb3085867 607 }
taylorza 0:7b3fb3085867 608
taylorza 4:88d22437119c 609 void LCD_ST7735::writeBatchData(uint8_t dataHigh, uint8_t dataLow)
taylorza 4:88d22437119c 610 {
taylorza 5:21c987ee68d2 611 _spi.fastWrite(dataHigh);
taylorza 5:21c987ee68d2 612 _spi.fastWrite(dataLow);
taylorza 4:88d22437119c 613 }
taylorza 4:88d22437119c 614
taylorza 4:88d22437119c 615
taylorza 0:7b3fb3085867 616 void LCD_ST7735::writeBatchData(uint16_t data)
taylorza 0:7b3fb3085867 617 {
taylorza 5:21c987ee68d2 618 _spi.fastWrite(data >> 8);
taylorza 5:21c987ee68d2 619 _spi.fastWrite(data);
taylorza 0:7b3fb3085867 620 }
taylorza 0:7b3fb3085867 621
taylorza 0:7b3fb3085867 622 void LCD_ST7735::endBatchCommand()
taylorza 0:7b3fb3085867 623 {
taylorza 5:21c987ee68d2 624 _spi.waitWhileBusy();
taylorza 5:21c987ee68d2 625 _spi.clearRx();
taylorza 0:7b3fb3085867 626 _ds = 0;
taylorza 0:7b3fb3085867 627 _cs = 1;
taylorza 4:88d22437119c 628 }
taylorza 7:f39c980a589c 629