Paul Staron / HY-1_8TFT_ST7735

Chinese module HY-1.8 SPI TFT lcd Display library.

Dependencies:   BurstSPI

Dependents:   KL25Z_DCF77_HY-1_8LCD

Fork of HY-1_8TFT_ST7735 by Paul Staron

ST7735_TFT.cpp@2:26149011665e, 2015-10-11 (annotated)

Committer:
star297
Date:
Sun Oct 11 21:30:26 2015 +0000
Revision:
2:26149011665e
Parent:
1:ef70eaf15b18 
updated BurstSPI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
star297 0:35a1964228b4 1 // ST7735 8 Bit SPI Library
star297 0:35a1964228b4 2
star297 0:35a1964228b4 3
star297 0:35a1964228b4 4 #include "ST7735_TFT.h"
star297 0:35a1964228b4 5 #include "mbed.h"
star297 0:35a1964228b4 6
star297 2:26149011665e 7 #define BPP 16 // Bits per pixel
star297 0:35a1964228b4 8
star297 0:35a1964228b4 9 ST7735_TFT::ST7735_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName rs, PinName reset, const char *name)
star297 2:26149011665e 10 : GraphicsDisplay(name),_spi(mosi, miso, sclk), _cs(cs), _rs(rs), _reset(reset)
star297 0:35a1964228b4 11 {
star297 0:35a1964228b4 12 tft_reset();
star297 0:35a1964228b4 13 orientation = 2;
star297 0:35a1964228b4 14 char_x = 0;
star297 0:35a1964228b4 15 }
star297 0:35a1964228b4 16 int ST7735_TFT::width() {
star297 0:35a1964228b4 17 if (orientation == 0 || orientation == 2) return 128;
star297 0:35a1964228b4 18 else return 160;
star297 0:35a1964228b4 19 }
star297 0:35a1964228b4 20 int ST7735_TFT::height() {
star297 0:35a1964228b4 21 if (orientation == 0 || orientation == 2) return 160;
star297 0:35a1964228b4 22 else return 128;
star297 0:35a1964228b4 23 }
star297 0:35a1964228b4 24 void ST7735_TFT::set_orientation(unsigned int o) {
star297 0:35a1964228b4 25 orientation = o;
star297 0:35a1964228b4 26 switch (orientation) {
star297 0:35a1964228b4 27 case 0:
star297 0:35a1964228b4 28 wr_reg(ST7735_MADCTL, 0x0008);
star297 0:35a1964228b4 29 break;
star297 0:35a1964228b4 30 case 1:
star297 0:35a1964228b4 31 wr_reg(ST7735_MADCTL, 0x0068);
star297 0:35a1964228b4 32 break;
star297 0:35a1964228b4 33 case 2:
star297 0:35a1964228b4 34 wr_reg(ST7735_MADCTL, 0x00C8);
star297 0:35a1964228b4 35 break;
star297 0:35a1964228b4 36 case 3:
star297 0:35a1964228b4 37 wr_reg(ST7735_MADCTL, 0x00A8);
star297 0:35a1964228b4 38 break;
star297 0:35a1964228b4 39 }
star297 0:35a1964228b4 40 }
star297 0:35a1964228b4 41 void ST7735_TFT::wr_cmd(int cmd) {
star297 0:35a1964228b4 42 _rs = 0; // rs low, cs low for transmitting command
star297 0:35a1964228b4 43 _cs = 0;
star297 0:35a1964228b4 44 _spi.write(cmd);
star297 0:35a1964228b4 45 _cs = 1;
star297 0:35a1964228b4 46 }
star297 0:35a1964228b4 47 void ST7735_TFT::wr_dat(int dat) {
star297 0:35a1964228b4 48 _rs = 1; // rs high, cs low for transmitting data
star297 0:35a1964228b4 49 _cs = 0;
star297 0:35a1964228b4 50 _spi.write(dat);
star297 0:35a1964228b4 51 _cs = 1;
star297 0:35a1964228b4 52 }
star297 0:35a1964228b4 53 void ST7735_TFT::wr_dat_start(void) {
star297 0:35a1964228b4 54 _rs = 1; // rs high, cs low for transmitting data
star297 0:35a1964228b4 55 _cs = 0;
star297 0:35a1964228b4 56 }
star297 0:35a1964228b4 57 void ST7735_TFT::wr_dat_stop (void) {
star297 0:35a1964228b4 58 _cs = 1;
star297 0:35a1964228b4 59 }
star297 0:35a1964228b4 60 void ST7735_TFT::wr_dat_only (unsigned short dat) {
star297 0:35a1964228b4 61 _spi.write(dat);
star297 0:35a1964228b4 62 }
star297 0:35a1964228b4 63 unsigned short ST7735_TFT::rd_dat (void) {
star297 0:35a1964228b4 64 unsigned short val = 0;
star297 0:35a1964228b4 65 _cs = 0;
star297 0:35a1964228b4 66 _spi.write(0); /* Dummy read 1 */
star297 0:35a1964228b4 67 val = _spi.write(0); /* Read D8..D15 */
star297 0:35a1964228b4 68 val <<= 8;
star297 0:35a1964228b4 69 val |= _spi.write(0); /* Read D0..D7 */
star297 0:35a1964228b4 70 _cs = 1;
star297 0:35a1964228b4 71 return (val);
star297 0:35a1964228b4 72 }
star297 0:35a1964228b4 73 void ST7735_TFT::wr_reg (unsigned char reg, unsigned short val) {
star297 0:35a1964228b4 74
star297 0:35a1964228b4 75 wr_cmd(reg);
star297 0:35a1964228b4 76 wr_dat(val);
star297 0:35a1964228b4 77 }
star297 0:35a1964228b4 78 unsigned short ST7735_TFT::rd_reg (unsigned char reg) {
star297 0:35a1964228b4 79
star297 0:35a1964228b4 80 wr_cmd(reg);
star297 0:35a1964228b4 81 return(rd_dat());
star297 0:35a1964228b4 82 }
star297 0:35a1964228b4 83 void ST7735_TFT::read_area(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *buffer) {
star297 0:35a1964228b4 84 // BEWARE !
star297 0:35a1964228b4 85 // DOES NOT WORK CORRECTLY YET !!!
star297 0:35a1964228b4 86 int val;
star297 0:35a1964228b4 87 window(x,y,w,h);
star297 0:35a1964228b4 88 wr_cmd(ST7735_RAMRD); // write to RAM
star297 0:35a1964228b4 89 _cs = 0;
star297 0:35a1964228b4 90 _rs = 1;
star297 0:35a1964228b4 91 _spi.write(0); /* Dummy read 1 */
star297 0:35a1964228b4 92
star297 0:35a1964228b4 93 val = _spi.write(0); /* Read D8..D15 */
star297 0:35a1964228b4 94 val <<= 8;
star297 0:35a1964228b4 95 val |= _spi.write(0); /* Read D0..D7 */
star297 0:35a1964228b4 96 _cs = 1;
star297 0:35a1964228b4 97 }
star297 0:35a1964228b4 98 int ST7735_TFT::getpixel(unsigned int x, unsigned int y) {
star297 0:35a1964228b4 99 // BEWARE !
star297 0:35a1964228b4 100 // DOES NOT WORK CORRECTLY YET !!!
star297 0:35a1964228b4 101 int val;
star297 0:35a1964228b4 102 // _spi.format(8,3);
star297 0:35a1964228b4 103 wr_cmd(ST7735_CASET); // column addr set
star297 0:35a1964228b4 104 wr_dat(0x00);
star297 0:35a1964228b4 105 wr_dat(x+2); // XSTART
star297 0:35a1964228b4 106 wr_dat(0x00);
star297 0:35a1964228b4 107 wr_dat(x+2+2); // XEND
star297 0:35a1964228b4 108
star297 0:35a1964228b4 109 wr_cmd(ST7735_RASET); // row addr set
star297 0:35a1964228b4 110 wr_dat(0x00);
star297 0:35a1964228b4 111 wr_dat(y+1); // YSTART
star297 0:35a1964228b4 112 wr_dat(0x00);
star297 0:35a1964228b4 113 wr_dat(y+1+1); // YEND
star297 0:35a1964228b4 114
star297 0:35a1964228b4 115 _rs = 0; // rs low, cs low for transmitting command
star297 0:35a1964228b4 116 _cs = 0;
star297 0:35a1964228b4 117 _spi.write(0x2E);
star297 0:35a1964228b4 118 _rs = 1;
star297 0:35a1964228b4 119 _spi.write(0x00); /* Dummy read 1 */
star297 0:35a1964228b4 120
star297 0:35a1964228b4 121 val = _spi.write(0x00); /* Read D8..D15 */
star297 0:35a1964228b4 122 val <<= 8;
star297 0:35a1964228b4 123 val |= _spi.write(0x00); /* Read D0..D7 */
star297 0:35a1964228b4 124
star297 0:35a1964228b4 125 _cs = 1;
star297 0:35a1964228b4 126 return val;
star297 0:35a1964228b4 127 }
star297 0:35a1964228b4 128 void ST7735_TFT::tft_reset() {
star297 0:35a1964228b4 129 // init SPI
star297 0:35a1964228b4 130 _spi.format(8,3); // 8 bit spi mode 3
star297 2:26149011665e 131 _spi.frequency(15000000); // 16Mhz SPI clock ... 15Mhz is maximum for display, but it seems to work
star297 0:35a1964228b4 132 _cs = 0;
star297 0:35a1964228b4 133 _reset = 1; // reset
star297 1:ef70eaf15b18 134 wait_ms(10);
star297 0:35a1964228b4 135 _reset = 0; // reset
star297 1:ef70eaf15b18 136 wait_ms(10);
star297 0:35a1964228b4 137 _reset = 1; // reset
star297 1:ef70eaf15b18 138 wait_ms(10);
star297 0:35a1964228b4 139
star297 0:35a1964228b4 140 /* Start Initial Sequence ----------------------------------------------------*/
star297 0:35a1964228b4 141 wr_cmd(ST7735_SWRESET); /* SW Reset */
star297 0:35a1964228b4 142 wait_ms(150);
star297 0:35a1964228b4 143 wr_cmd(ST7735_SLPOUT); /* Out of sleepmode */
star297 0:35a1964228b4 144 wait_ms(500);
star297 0:35a1964228b4 145
star297 0:35a1964228b4 146 wr_cmd(ST7735_FRMCTR1); /* Frame rate in normal mode */
star297 0:35a1964228b4 147 wr_dat(0x01);
star297 0:35a1964228b4 148 wr_dat(0x2C);
star297 0:35a1964228b4 149 wr_dat(0x2D);
star297 0:35a1964228b4 150
star297 0:35a1964228b4 151 wr_cmd(ST7735_FRMCTR2); /* Frame rate in idle mode */
star297 0:35a1964228b4 152 wr_dat(0x01);
star297 0:35a1964228b4 153 wr_dat(0x2C);
star297 0:35a1964228b4 154 wr_dat(0x2D);
star297 0:35a1964228b4 155
star297 0:35a1964228b4 156 wr_cmd(ST7735_FRMCTR3); /* Frame rate in partial mode */
star297 0:35a1964228b4 157 wr_dat(0x01);
star297 0:35a1964228b4 158 wr_dat(0x2C);
star297 0:35a1964228b4 159 wr_dat(0x2D);
star297 0:35a1964228b4 160 wr_dat(0x01); // inversion mode settings
star297 0:35a1964228b4 161 wr_dat(0x2C);
star297 0:35a1964228b4 162 wr_dat(0x2D);
star297 0:35a1964228b4 163
star297 0:35a1964228b4 164 wr_cmd(ST7735_INVCTR); // Inverted mode off
star297 0:35a1964228b4 165 wr_dat(0x07);
star297 0:35a1964228b4 166
star297 0:35a1964228b4 167 wr_cmd(ST7735_PWCTR1); // POWER CONTROL 1
star297 0:35a1964228b4 168 wr_dat(0xA2);
star297 0:35a1964228b4 169 wr_dat(0x02); // -4.6V
star297 0:35a1964228b4 170 wr_dat(0x84); // AUTO mode
star297 0:35a1964228b4 171
star297 0:35a1964228b4 172 wr_cmd(ST7735_PWCTR2); // POWER CONTROL 2
star297 0:35a1964228b4 173 wr_dat(0xC5); // VGH25 = 2.4C VGSEL =-10 VGH = 3*AVDD
star297 0:35a1964228b4 174
star297 0:35a1964228b4 175 wr_cmd(ST7735_PWCTR3); // POWER CONTROL 3
star297 0:35a1964228b4 176 wr_dat(0x0A); // Opamp current small
star297 0:35a1964228b4 177 wr_dat(0x00); // Boost freq
star297 0:35a1964228b4 178
star297 0:35a1964228b4 179 wr_cmd(ST7735_PWCTR4); // POWER CONTROL 4
star297 0:35a1964228b4 180 wr_dat(0x8A); // BCLK/2, Opamp current small / medium low
star297 0:35a1964228b4 181 wr_dat(0x2A); //
star297 0:35a1964228b4 182
star297 0:35a1964228b4 183 wr_cmd(ST7735_PWCTR5); // POWER CONTROL 5
star297 0:35a1964228b4 184 wr_dat(0x8A); // BCLK/2, Opamp current small / medium low
star297 0:35a1964228b4 185 wr_dat(0xEE); //
star297 0:35a1964228b4 186
star297 0:35a1964228b4 187 wr_cmd(ST7735_VMCTR1); // POWER CONTROL 6
star297 0:35a1964228b4 188 wr_dat(0x0E); //
star297 0:35a1964228b4 189
star297 0:35a1964228b4 190 wr_cmd(ST7735_INVOFF); // INVOFF
star297 0:35a1964228b4 191
star297 0:35a1964228b4 192 wr_cmd(ST7735_MADCTL); // ORIENTATION
star297 0:35a1964228b4 193 wr_dat(0xC8); //
star297 0:35a1964228b4 194
star297 0:35a1964228b4 195 wr_cmd(ST7735_COLMOD); // COLOR MODE
star297 0:35a1964228b4 196 wr_dat(0x05); //
star297 0:35a1964228b4 197
star297 0:35a1964228b4 198 wr_cmd(ST7735_CASET); // COLUMN ADDR SET
star297 0:35a1964228b4 199 wr_dat(0x00); //
star297 0:35a1964228b4 200 wr_dat(0x00); // xstart = 0
star297 0:35a1964228b4 201 wr_dat(0x00); //
star297 0:35a1964228b4 202 wr_dat(0x7F); // xend = 127
star297 0:35a1964228b4 203
star297 0:35a1964228b4 204 wr_cmd(ST7735_RASET); // ROW ADDR SET
star297 0:35a1964228b4 205 wr_dat(0x00); //
star297 0:35a1964228b4 206 wr_dat(0x00); // ystart = 0
star297 0:35a1964228b4 207 wr_dat(0x00); //
star297 0:35a1964228b4 208 wr_dat(0x9F); // yend = 159
star297 0:35a1964228b4 209
star297 0:35a1964228b4 210 /* Gamma settings -----------------------------------------------------------*/
star297 0:35a1964228b4 211
star297 0:35a1964228b4 212 wr_cmd(0xE0); // GMCTRP1
star297 0:35a1964228b4 213 wr_dat(0x02);
star297 0:35a1964228b4 214 wr_dat(0x1c);
star297 0:35a1964228b4 215 wr_dat(0x07);
star297 0:35a1964228b4 216 wr_dat(0x12);
star297 0:35a1964228b4 217 wr_dat(0x37);
star297 0:35a1964228b4 218 wr_dat(0x32);
star297 0:35a1964228b4 219 wr_dat(0x29);
star297 0:35a1964228b4 220 wr_dat(0x2d);
star297 0:35a1964228b4 221 wr_dat(0x29);
star297 0:35a1964228b4 222 wr_dat(0x25);
star297 0:35a1964228b4 223 wr_dat(0x2B);
star297 0:35a1964228b4 224 wr_dat(0x39);
star297 0:35a1964228b4 225 wr_dat(0x00);
star297 0:35a1964228b4 226 wr_dat(0x01);
star297 0:35a1964228b4 227 wr_dat(0x03);
star297 0:35a1964228b4 228 wr_dat(0x10);
star297 0:35a1964228b4 229 wr_cmd(0xE1); // GMCTRN1
star297 0:35a1964228b4 230 wr_dat(0x03);
star297 0:35a1964228b4 231 wr_dat(0x1d);
star297 0:35a1964228b4 232 wr_dat(0x07);
star297 0:35a1964228b4 233 wr_dat(0x06);
star297 0:35a1964228b4 234 wr_dat(0x2E);
star297 0:35a1964228b4 235 wr_dat(0x2C);
star297 0:35a1964228b4 236 wr_dat(0x29);
star297 0:35a1964228b4 237 wr_dat(0x2D);
star297 0:35a1964228b4 238 wr_dat(0x2E);
star297 0:35a1964228b4 239 wr_dat(0x2E);
star297 0:35a1964228b4 240 wr_dat(0x37);
star297 0:35a1964228b4 241 wr_dat(0x3F);
star297 0:35a1964228b4 242 wr_dat(0x00);
star297 0:35a1964228b4 243 wr_dat(0x00);
star297 0:35a1964228b4 244 wr_dat(0x02);
star297 0:35a1964228b4 245 wr_dat(0x10);
star297 0:35a1964228b4 246
star297 0:35a1964228b4 247 wr_cmd(ST7735_DISPON); // display ON
star297 0:35a1964228b4 248 wait_ms(100);
star297 0:35a1964228b4 249
star297 0:35a1964228b4 250 wr_cmd(ST7735_NORON); // normal display on
star297 0:35a1964228b4 251 wait_ms(10);
star297 0:35a1964228b4 252
star297 0:35a1964228b4 253 switch (orientation) {
star297 0:35a1964228b4 254 case 0:
star297 0:35a1964228b4 255 wr_reg(0xC8, 0x0008);
star297 0:35a1964228b4 256 break;
star297 0:35a1964228b4 257 case 1:
star297 0:35a1964228b4 258 wr_reg(0xC8, 0x0068);
star297 0:35a1964228b4 259 break;
star297 0:35a1964228b4 260 case 2:
star297 0:35a1964228b4 261 wr_reg(0xC8, 0x00C8);
star297 0:35a1964228b4 262 break;
star297 0:35a1964228b4 263 case 3:
star297 0:35a1964228b4 264 wr_reg(0xC8, 0x00A8);
star297 0:35a1964228b4 265 break;
star297 0:35a1964228b4 266 }
star297 0:35a1964228b4 267 WindowMax ();
star297 0:35a1964228b4 268 }
star297 0:35a1964228b4 269 void ST7735_TFT::pixel(int x, int y, int color) {
star297 0:35a1964228b4 270 if ((x >= width()) || (y >= height())) return;
star297 0:35a1964228b4 271 window(x,y,x+1,y+1);
star297 0:35a1964228b4 272 _rs = 1;
star297 0:35a1964228b4 273 _cs = 0;
star297 0:35a1964228b4 274 _spi.write(color);
star297 2:26149011665e 275 _spi.write(color>>8);
star297 2:26149011665e 276 _cs = 1;
star297 0:35a1964228b4 277 }
star297 0:35a1964228b4 278 void ST7735_TFT::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h) {
star297 0:35a1964228b4 279 wr_cmd(ST7735_CASET); // column addr set
star297 0:35a1964228b4 280 wr_dat(0x00);
star297 0:35a1964228b4 281 wr_dat(x); // XSTART
star297 0:35a1964228b4 282 wr_dat(0x00);
star297 0:35a1964228b4 283 wr_dat(x+w-1); // XEND
star297 0:35a1964228b4 284 wr_cmd(ST7735_RASET); // row addr set
star297 0:35a1964228b4 285 wr_dat(0x00);
star297 0:35a1964228b4 286 wr_dat(y); // YSTART
star297 0:35a1964228b4 287 wr_dat(0x00);
star297 0:35a1964228b4 288 wr_dat(y+h-1); // YEND
star297 0:35a1964228b4 289 wr_cmd(ST7735_RAMWR); // write to RAM
star297 0:35a1964228b4 290 }
star297 0:35a1964228b4 291 void ST7735_TFT::WindowMax (void) {
star297 0:35a1964228b4 292 window (0, 0, width(), height());
star297 0:35a1964228b4 293 }
star297 0:35a1964228b4 294
star297 0:35a1964228b4 295 void ST7735_TFT::cls (void) {
star297 0:35a1964228b4 296 unsigned int i;
star297 0:35a1964228b4 297 WindowMax();
star297 0:35a1964228b4 298 wr_dat_start();
star297 0:35a1964228b4 299 for (i = 0; i < ( (width()) * (height())); i++) {
star297 2:26149011665e 300
star297 2:26149011665e 301 //_spi.write(_background>>8);
star297 2:26149011665e 302 //_spi.write(_background);
star297 2:26149011665e 303
star297 2:26149011665e 304 _spi.fastWrite(_background>>8);
star297 2:26149011665e 305 _spi.fastWrite(_background);
star297 2:26149011665e 306
star297 0:35a1964228b4 307 }
star297 2:26149011665e 308 _spi.clearRX();
star297 0:35a1964228b4 309 wr_dat_stop();
star297 0:35a1964228b4 310 }
star297 0:35a1964228b4 311 void ST7735_TFT::circle(int x0, int y0, int r, int color) {
star297 0:35a1964228b4 312 int draw_x0, draw_y0;
star297 0:35a1964228b4 313 int draw_x1, draw_y1;
star297 0:35a1964228b4 314 int draw_x2, draw_y2;
star297 0:35a1964228b4 315 int draw_x3, draw_y3;
star297 0:35a1964228b4 316 int draw_x4, draw_y4;
star297 0:35a1964228b4 317 int draw_x5, draw_y5;
star297 0:35a1964228b4 318 int draw_x6, draw_y6;
star297 0:35a1964228b4 319 int draw_x7, draw_y7;
star297 0:35a1964228b4 320 int xx, yy;
star297 0:35a1964228b4 321 int di;
star297 0:35a1964228b4 322 WindowMax();
star297 0:35a1964228b4 323 if (r == 0) { /* no radius */
star297 0:35a1964228b4 324 return;
star297 0:35a1964228b4 325 }
star297 0:35a1964228b4 326 draw_x0 = draw_x1 = x0;
star297 0:35a1964228b4 327 draw_y0 = draw_y1 = y0 + r;
star297 0:35a1964228b4 328 if (draw_y0 < height()) {
star297 0:35a1964228b4 329 pixel(draw_x0, draw_y0, color); /* 90 degree */
star297 0:35a1964228b4 330 }
star297 0:35a1964228b4 331 draw_x2 = draw_x3 = x0;
star297 0:35a1964228b4 332 draw_y2 = draw_y3 = y0 - r;
star297 0:35a1964228b4 333 if (draw_y2 >= 0) {
star297 0:35a1964228b4 334 pixel(draw_x2, draw_y2, color); /* 270 degree */
star297 0:35a1964228b4 335 }
star297 0:35a1964228b4 336 draw_x4 = draw_x6 = x0 + r;
star297 0:35a1964228b4 337 draw_y4 = draw_y6 = y0;
star297 0:35a1964228b4 338 if (draw_x4 < width()) {
star297 0:35a1964228b4 339 pixel(draw_x4, draw_y4, color); /* 0 degree */
star297 0:35a1964228b4 340 }
star297 0:35a1964228b4 341 draw_x5 = draw_x7 = x0 - r;
star297 0:35a1964228b4 342 draw_y5 = draw_y7 = y0;
star297 0:35a1964228b4 343 if (draw_x5>=0) {
star297 0:35a1964228b4 344 pixel(draw_x5, draw_y5, color); /* 180 degree */
star297 0:35a1964228b4 345 }
star297 0:35a1964228b4 346 if (r == 1) {
star297 0:35a1964228b4 347 return;
star297 0:35a1964228b4 348 }
star297 0:35a1964228b4 349 di = 3 - 2*r;
star297 0:35a1964228b4 350 xx = 0;
star297 0:35a1964228b4 351 yy = r;
star297 0:35a1964228b4 352 while (xx < yy) {
star297 0:35a1964228b4 353
star297 0:35a1964228b4 354 if (di < 0) {
star297 0:35a1964228b4 355 di += 4*xx + 6;
star297 0:35a1964228b4 356 } else {
star297 0:35a1964228b4 357 di += 4*(xx - yy) + 10;
star297 0:35a1964228b4 358 yy--;
star297 0:35a1964228b4 359 draw_y0--;
star297 0:35a1964228b4 360 draw_y1--;
star297 0:35a1964228b4 361 draw_y2++;
star297 0:35a1964228b4 362 draw_y3++;
star297 0:35a1964228b4 363 draw_x4--;
star297 0:35a1964228b4 364 draw_x5++;
star297 0:35a1964228b4 365 draw_x6--;
star297 0:35a1964228b4 366 draw_x7++;
star297 0:35a1964228b4 367 }
star297 0:35a1964228b4 368 xx++;
star297 0:35a1964228b4 369 draw_x0++;
star297 0:35a1964228b4 370 draw_x1--;
star297 0:35a1964228b4 371 draw_x2++;
star297 0:35a1964228b4 372 draw_x3--;
star297 0:35a1964228b4 373 draw_y4++;
star297 0:35a1964228b4 374 draw_y5++;
star297 0:35a1964228b4 375 draw_y6--;
star297 0:35a1964228b4 376 draw_y7--;
star297 0:35a1964228b4 377
star297 0:35a1964228b4 378 if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
star297 0:35a1964228b4 379 pixel(draw_x0, draw_y0, color);
star297 0:35a1964228b4 380 }
star297 0:35a1964228b4 381 if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
star297 0:35a1964228b4 382 pixel(draw_x1, draw_y1, color);
star297 0:35a1964228b4 383 }
star297 0:35a1964228b4 384 if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
star297 0:35a1964228b4 385 pixel(draw_x2, draw_y2, color);
star297 0:35a1964228b4 386 }
star297 0:35a1964228b4 387 if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
star297 0:35a1964228b4 388 pixel(draw_x3, draw_y3, color);
star297 0:35a1964228b4 389 }
star297 0:35a1964228b4 390 if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
star297 0:35a1964228b4 391 pixel(draw_x4, draw_y4, color);
star297 0:35a1964228b4 392 }
star297 0:35a1964228b4 393 if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
star297 0:35a1964228b4 394 pixel(draw_x5, draw_y5, color);
star297 0:35a1964228b4 395 }
star297 0:35a1964228b4 396 if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
star297 0:35a1964228b4 397 pixel(draw_x6, draw_y6, color);
star297 0:35a1964228b4 398 }
star297 0:35a1964228b4 399 if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
star297 0:35a1964228b4 400 pixel(draw_x7, draw_y7, color);
star297 0:35a1964228b4 401 }
star297 0:35a1964228b4 402 }
star297 0:35a1964228b4 403 return;
star297 0:35a1964228b4 404 }
star297 0:35a1964228b4 405 void ST7735_TFT::fillcircle(int x, int y, int r, int color) {
star297 0:35a1964228b4 406 int i;
star297 0:35a1964228b4 407 for (i = 0; i <= r; i++)
star297 0:35a1964228b4 408 circle(x,y,i,color);
star297 0:35a1964228b4 409 }
star297 0:35a1964228b4 410 void ST7735_TFT::hline(int x0, int x1, int y, int color) {
star297 0:35a1964228b4 411 int w;
star297 0:35a1964228b4 412 w = x1 - x0 + 1;
star297 0:35a1964228b4 413 window(x0,y,w,1);
star297 0:35a1964228b4 414 wr_cmd(0x2C);
star297 0:35a1964228b4 415 wr_dat_start();
star297 0:35a1964228b4 416 for (int x=0; x<w; x++) {
star297 2:26149011665e 417 //_spi.write(color);
star297 2:26149011665e 418 //_spi.write(color >> 8);
star297 2:26149011665e 419 _spi.fastWrite(color>>8);
star297 2:26149011665e 420 _spi.fastWrite(color);
star297 0:35a1964228b4 421 }
star297 2:26149011665e 422 _spi.clearRX();
star297 0:35a1964228b4 423 wr_dat_stop();
star297 0:35a1964228b4 424 return;
star297 0:35a1964228b4 425 }
star297 0:35a1964228b4 426 void ST7735_TFT::vline(int x, int y0, int y1, int color) {
star297 0:35a1964228b4 427 int h;
star297 0:35a1964228b4 428 h = y1 - y0 + 1;
star297 0:35a1964228b4 429 window(x,y0,1,h);
star297 0:35a1964228b4 430 wr_cmd(0x2C);
star297 0:35a1964228b4 431 wr_dat_start();
star297 0:35a1964228b4 432 for (int y=0; y<h; y++) {
star297 2:26149011665e 433 //_spi.write(color);
star297 2:26149011665e 434 //_spi.write(color >> 8);
star297 2:26149011665e 435 _spi.fastWrite(color>>8);
star297 2:26149011665e 436 _spi.fastWrite(color);
star297 0:35a1964228b4 437 }
star297 2:26149011665e 438 _spi.clearRX();
star297 0:35a1964228b4 439 wr_dat_stop();
star297 0:35a1964228b4 440 return;
star297 0:35a1964228b4 441 }
star297 0:35a1964228b4 442 void ST7735_TFT::line(int x0, int y0, int x1, int y1, int color) {
star297 0:35a1964228b4 443 WindowMax();
star297 0:35a1964228b4 444 int dx = 0, dy = 0;
star297 0:35a1964228b4 445 int dx_sym = 0, dy_sym = 0;
star297 0:35a1964228b4 446 int dx_x2 = 0, dy_x2 = 0;
star297 0:35a1964228b4 447 int di = 0;
star297 0:35a1964228b4 448 dx = x1-x0;
star297 0:35a1964228b4 449 dy = y1-y0;
star297 0:35a1964228b4 450
star297 0:35a1964228b4 451 if (dx == 0) { /* vertical line */
star297 0:35a1964228b4 452 if (y1 > y0) vline(x0,y0,y1,color);
star297 0:35a1964228b4 453 else vline(x0,y1,y0,color);
star297 0:35a1964228b4 454 return;
star297 0:35a1964228b4 455 }
star297 0:35a1964228b4 456 if (dx > 0) {
star297 0:35a1964228b4 457 dx_sym = 1;
star297 0:35a1964228b4 458 } else {
star297 0:35a1964228b4 459 dx_sym = -1;
star297 0:35a1964228b4 460 }
star297 0:35a1964228b4 461 if (dy == 0) { /* horizontal line */
star297 0:35a1964228b4 462 if (x1 > x0) hline(x0,x1,y0,color);
star297 0:35a1964228b4 463 else hline(x1,x0,y0,color);
star297 0:35a1964228b4 464 return;
star297 0:35a1964228b4 465 }
star297 0:35a1964228b4 466 if (dy > 0) {
star297 0:35a1964228b4 467 dy_sym = 1;
star297 0:35a1964228b4 468 } else {
star297 0:35a1964228b4 469 dy_sym = -1;
star297 0:35a1964228b4 470 }
star297 0:35a1964228b4 471 dx = dx_sym*dx;
star297 0:35a1964228b4 472 dy = dy_sym*dy;
star297 0:35a1964228b4 473 dx_x2 = dx*2;
star297 0:35a1964228b4 474 dy_x2 = dy*2;
star297 0:35a1964228b4 475 if (dx >= dy) {
star297 0:35a1964228b4 476 di = dy_x2 - dx;
star297 0:35a1964228b4 477 while (x0 != x1) {
star297 0:35a1964228b4 478
star297 0:35a1964228b4 479 pixel(x0, y0, color);
star297 0:35a1964228b4 480 x0 += dx_sym;
star297 0:35a1964228b4 481 if (di<0) {
star297 0:35a1964228b4 482 di += dy_x2;
star297 0:35a1964228b4 483 } else {
star297 0:35a1964228b4 484 di += dy_x2 - dx_x2;
star297 0:35a1964228b4 485 y0 += dy_sym;
star297 0:35a1964228b4 486 }
star297 0:35a1964228b4 487 }
star297 0:35a1964228b4 488 pixel(x0, y0, color);
star297 0:35a1964228b4 489 } else {
star297 0:35a1964228b4 490 di = dx_x2 - dy;
star297 0:35a1964228b4 491 while (y0 != y1) {
star297 0:35a1964228b4 492 pixel(x0, y0, color);
star297 0:35a1964228b4 493 y0 += dy_sym;
star297 0:35a1964228b4 494 if (di < 0) {
star297 0:35a1964228b4 495 di += dx_x2;
star297 0:35a1964228b4 496 } else {
star297 0:35a1964228b4 497 di += dx_x2 - dy_x2;
star297 0:35a1964228b4 498 x0 += dx_sym;
star297 0:35a1964228b4 499 }
star297 0:35a1964228b4 500 }
star297 0:35a1964228b4 501 pixel(x0, y0, color);
star297 0:35a1964228b4 502 }
star297 0:35a1964228b4 503 return;
star297 0:35a1964228b4 504 }
star297 0:35a1964228b4 505 void ST7735_TFT::rect(int x0, int y0, int x1, int y1, int color) {
star297 0:35a1964228b4 506 if (x1 > x0) hline(x0,x1,y0,color);
star297 0:35a1964228b4 507 else hline(x1,x0,y0,color);
star297 0:35a1964228b4 508 if (y1 > y0) vline(x0,y0,y1,color);
star297 0:35a1964228b4 509 else vline(x0,y1,y0,color);
star297 0:35a1964228b4 510 if (x1 > x0) hline(x0,x1,y1,color);
star297 0:35a1964228b4 511 else hline(x1,x0,y1,color);
star297 0:35a1964228b4 512 if (y1 > y0) vline(x1,y0,y1,color);
star297 0:35a1964228b4 513 else vline(x1,y1,y0,color);
star297 0:35a1964228b4 514 return;
star297 0:35a1964228b4 515 }
star297 0:35a1964228b4 516 void ST7735_TFT::fillrect(int x0, int y0, int x1, int y1, int color) {
star297 0:35a1964228b4 517 int h = y1 - y0 ;
star297 0:35a1964228b4 518 int w = x1 - x0 ;
star297 0:35a1964228b4 519 int pixel = h * w;
star297 0:35a1964228b4 520 window(x0,y0,w,h);
star297 0:35a1964228b4 521 wr_cmd(0x2C);
star297 0:35a1964228b4 522 wr_dat_start();
star297 0:35a1964228b4 523 for (int p=0; p<pixel; p++) {
star297 2:26149011665e 524 //_spi.write(color);
star297 2:26149011665e 525 //_spi.write(color >> 8);
star297 2:26149011665e 526 _spi.fastWrite(color>>8);
star297 2:26149011665e 527 _spi.fastWrite(color);
star297 2:26149011665e 528
star297 2:26149011665e 529
star297 0:35a1964228b4 530 }
star297 2:26149011665e 531 _spi.clearRX();
star297 0:35a1964228b4 532 wr_dat_stop();
star297 0:35a1964228b4 533 return;
star297 0:35a1964228b4 534 }
star297 0:35a1964228b4 535 void ST7735_TFT::locate(int x, int y) {
star297 0:35a1964228b4 536 char_x = x;
star297 0:35a1964228b4 537 char_y = y;
star297 0:35a1964228b4 538 }
star297 0:35a1964228b4 539 int ST7735_TFT::columns() {
star297 0:35a1964228b4 540 return width() / font[1];
star297 0:35a1964228b4 541 }
star297 0:35a1964228b4 542 int ST7735_TFT::rows() {
star297 0:35a1964228b4 543 return height() / font[2];
star297 0:35a1964228b4 544 }
star297 0:35a1964228b4 545 int ST7735_TFT::_putc(int value) {
star297 0:35a1964228b4 546 if (value == '\n') { // new line
star297 0:35a1964228b4 547 char_x = 0;
star297 0:35a1964228b4 548 char_y = char_y + font[2];
star297 0:35a1964228b4 549 if (char_y >= height() - font[2]) {
star297 0:35a1964228b4 550 char_y = 0;
star297 0:35a1964228b4 551 }
star297 0:35a1964228b4 552 } else {
star297 0:35a1964228b4 553 character(char_x, char_y, value);
star297 0:35a1964228b4 554 }
star297 0:35a1964228b4 555 return value;
star297 0:35a1964228b4 556 }
star297 0:35a1964228b4 557 void ST7735_TFT::character(int x, int y, int c) {
star297 0:35a1964228b4 558 unsigned int hor,vert,offset,bpl,j,i,b;
star297 0:35a1964228b4 559 unsigned char* sign;
star297 0:35a1964228b4 560 unsigned char z,w;
star297 0:35a1964228b4 561 if ((c < 31) || (c > 127)) return; // test char range
star297 0:35a1964228b4 562 // read font parameter from start of array
star297 0:35a1964228b4 563 offset = font[0]; // bytes / char
star297 0:35a1964228b4 564 hor = font[1]; // get hor size of font
star297 0:35a1964228b4 565 vert = font[2]; // get vert size of font
star297 0:35a1964228b4 566 bpl = font[3]; // bytes per line
star297 0:35a1964228b4 567 if (char_x + hor > width()) {
star297 0:35a1964228b4 568 char_x = 0;
star297 0:35a1964228b4 569 char_y = char_y + vert;
star297 0:35a1964228b4 570 if (char_y >= height() - font[2]) {
star297 0:35a1964228b4 571 char_y = 0;
star297 0:35a1964228b4 572 }
star297 0:35a1964228b4 573 }
star297 0:35a1964228b4 574 window(char_x, char_y,hor,vert); // char box
star297 0:35a1964228b4 575 wr_cmd(0x2C);
star297 0:35a1964228b4 576 wr_dat_start();
star297 0:35a1964228b4 577 sign = &font[((c -32) * offset) + 4]; // start of char bitmap
star297 0:35a1964228b4 578 w = sign[0]; // width of actual char
star297 0:35a1964228b4 579 for (j=0; j<vert; j++) { // vert line
star297 0:35a1964228b4 580 for (i=0; i<hor; i++) { // horz line
star297 0:35a1964228b4 581 z = sign[bpl * i + ((j & 0xF8) >> 3)+1];
star297 0:35a1964228b4 582 b = 1 << (j & 0x07);
star297 2:26149011665e 583 if (( z & b ) == 0x00) {
star297 2:26149011665e 584 //_spi.write(_background>>8);
star297 2:26149011665e 585 //_spi.write(_background);
star297 2:26149011665e 586 _spi.fastWrite(_background>>8);
star297 2:26149011665e 587 _spi.fastWrite(_background);
star297 2:26149011665e 588
star297 2:26149011665e 589 } else {
star297 2:26149011665e 590 // _spi.write(_foreground>>8);
star297 2:26149011665e 591 // _spi.write(_foreground);
star297 2:26149011665e 592 _spi.fastWrite(_foreground>>8);
star297 2:26149011665e 593 _spi.fastWrite(_foreground);
star297 2:26149011665e 594
star297 0:35a1964228b4 595 }
star297 0:35a1964228b4 596 }
star297 0:35a1964228b4 597 }
star297 2:26149011665e 598 _spi.clearRX();
star297 0:35a1964228b4 599 wr_dat_stop();
star297 0:35a1964228b4 600 if ((w + 2) < hor) { // x offset to next char
star297 0:35a1964228b4 601 char_x += w + 2;
star297 0:35a1964228b4 602 } else char_x += hor;
star297 0:35a1964228b4 603 }
star297 0:35a1964228b4 604 void ST7735_TFT::set_font(unsigned char* f) {
star297 0:35a1964228b4 605 font = f;
star297 0:35a1964228b4 606 }
star297 0:35a1964228b4 607 void ST7735_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap) {
star297 0:35a1964228b4 608 unsigned int i,j; //value;
star297 0:35a1964228b4 609 unsigned short *bitmap_ptr = (unsigned short *)bitmap;
star297 0:35a1964228b4 610 window(x, y, w, h);
star297 0:35a1964228b4 611 wr_cmd(0x2C);
star297 0:35a1964228b4 612 wr_dat_start();
star297 0:35a1964228b4 613 for (j = 0; j < h; j++) { //Lines
star297 0:35a1964228b4 614 for (i = 0; i < w; i++) { // copy pixel data to TFT
star297 2:26149011665e 615 //_spi.write(*bitmap_ptr); // one line
star297 2:26149011665e 616 //_spi.write(*bitmap_ptr >> 8);
star297 2:26149011665e 617 _spi.fastWrite(*bitmap_ptr);
star297 2:26149011665e 618 _spi.fastWrite(*bitmap_ptr >> 8);
star297 0:35a1964228b4 619 bitmap_ptr++;
star297 0:35a1964228b4 620 }
star297 0:35a1964228b4 621 }
star297 2:26149011665e 622 _spi.clearRX();
star297 0:35a1964228b4 623 wr_dat_stop();
star297 0:35a1964228b4 624 }
star297 0:35a1964228b4 625 int ST7735_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP) {
star297 0:35a1964228b4 626 // BEWARE !
star297 0:35a1964228b4 627 // NOT TESTED
star297 0:35a1964228b4 628 #define OffsetPixelWidth 18
star297 0:35a1964228b4 629 #define OffsetPixelHeigh 22
star297 0:35a1964228b4 630 #define OffsetFileSize 34
star297 0:35a1964228b4 631 #define OffsetPixData 10
star297 0:35a1964228b4 632 #define OffsetBPP 28
star297 0:35a1964228b4 633 char filename[50];
star297 0:35a1964228b4 634 unsigned char BMP_Header[54];
star297 0:35a1964228b4 635 unsigned short BPP_t;
star297 0:35a1964228b4 636 unsigned int PixelWidth,PixelHeigh,start_data;
star297 0:35a1964228b4 637 unsigned int i,off;
star297 0:35a1964228b4 638 int padd,j;
star297 0:35a1964228b4 639 unsigned short *line;
star297 0:35a1964228b4 640 // get the filename
star297 0:35a1964228b4 641 //LocalFileSystem local("local"); not working on FRDM-KL25Z
star297 0:35a1964228b4 642 sprintf(&filename[0],"/local/");
star297 0:35a1964228b4 643 i=7;
star297 0:35a1964228b4 644 while (*Name_BMP!='\0') {
star297 0:35a1964228b4 645 filename[i++]=*Name_BMP++;
star297 0:35a1964228b4 646 }
star297 0:35a1964228b4 647 FILE *Image = fopen((const char *)&filename[0], "r"); // open the bmp file
star297 0:35a1964228b4 648 if (!Image) {
star297 0:35a1964228b4 649 return(0); // error file not found !
star297 0:35a1964228b4 650 }
star297 0:35a1964228b4 651 fread(&BMP_Header[0],1,54,Image); // get the BMP Header
star297 0:35a1964228b4 652
star297 0:35a1964228b4 653 if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
star297 0:35a1964228b4 654 fclose(Image);
star297 0:35a1964228b4 655 return(-1); // error no BMP file
star297 0:35a1964228b4 656 }
star297 0:35a1964228b4 657 BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
star297 0:35a1964228b4 658 if (BPP_t != 0x0010) {
star297 0:35a1964228b4 659 fclose(Image);
star297 0:35a1964228b4 660 return(-2); // error no 16 bit BMP
star297 0:35a1964228b4 661 }
star297 0:35a1964228b4 662 PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
star297 0:35a1964228b4 663 PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
star297 0:35a1964228b4 664 if (PixelHeigh > height() + y || PixelWidth > width() + x) {
star297 0:35a1964228b4 665 fclose(Image);
star297 0:35a1964228b4 666 return(-3); // to big
star297 0:35a1964228b4 667 }
star297 0:35a1964228b4 668 start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
star297 0:35a1964228b4 669
star297 0:35a1964228b4 670 line = (unsigned short *) malloc (PixelWidth); // we need a buffer for a line
star297 0:35a1964228b4 671 if (line == NULL) {
star297 0:35a1964228b4 672 return(-4); // error no memory
star297 0:35a1964228b4 673 }
star297 0:35a1964228b4 674 // the lines are padded to multiple of 4 bytes
star297 0:35a1964228b4 675 padd = -1;
star297 0:35a1964228b4 676 do {
star297 0:35a1964228b4 677 padd ++;
star297 0:35a1964228b4 678 } while ((PixelWidth * 2 + padd)%4 != 0);
star297 0:35a1964228b4 679 window(x, y,PixelWidth,PixelHeigh);
star297 0:35a1964228b4 680 wr_cmd(0x2C);
star297 0:35a1964228b4 681 wr_dat_start();
star297 0:35a1964228b4 682 for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
star297 0:35a1964228b4 683 off = j * (PixelWidth * 2 + padd) + start_data; // start of line
star297 0:35a1964228b4 684 fseek(Image, off ,SEEK_SET);
star297 0:35a1964228b4 685 fread(line,1,PixelWidth * 2,Image); // read a line - slow !
star297 0:35a1964228b4 686 for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
star297 2:26149011665e 687 //_spi.write(line[i]); // 2 x 8 bit pixel
star297 2:26149011665e 688 //_spi.write(line[i]>>8);
star297 2:26149011665e 689 _spi.fastWrite(line[i]);
star297 2:26149011665e 690 _spi.fastWrite(line[i]>>8);
star297 0:35a1964228b4 691 }
star297 0:35a1964228b4 692 }
star297 2:26149011665e 693 _spi.clearRX();
star297 0:35a1964228b4 694 wr_dat_stop();
star297 0:35a1964228b4 695 free (line);
star297 0:35a1964228b4 696 fclose(Image);
star297 0:35a1964228b4 697 return(1);
star297 0:35a1964228b4 698 }