Wim Huiskamp
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Peter Drescher
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SPI_TFT_ILI9341.cpp
00001 /* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller 00002 * Copyright (c) 2013 Peter Drescher - DC2PD 00003 * 00004 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00005 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00006 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00007 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00008 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00009 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00010 * THE SOFTWARE. 00011 */ 00012 00013 // 12.06.13 fork from SPI_TFT code because controller is different ... 00014 // 14.07.13 Test with real display and bugfix 00015 // 18.10.13 Better Circle function from Michael Ammann 00016 // 22.10.13 Fixes for Kinetis Board - 8 bit spi 00017 // 26.01.14 Change interface for BMP_16 to also use SD-cards 00018 // 30.03.14 WH Added some methods & defines, Fixed typos & warnings, General define for SPI_16 selection 00019 00020 #include "mbed.h" 00021 #include "SPI_TFT_ILI9341.h" 00022 00023 //extern Serial pc; 00024 //extern DigitalOut xx; // debug !! 00025 00026 SPI_TFT_ILI9341::SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char *name) 00027 : GraphicsDisplay(name), _spi(mosi, miso, sclk), _cs(cs), _dc(dc) 00028 { 00029 00030 // The hardware Reset pin is optional. Test and make sure whether it exists or not to prevent illegal access. 00031 if (reset != NC) { 00032 _reset = new DigitalOut(reset, 1); //Construct new pin, Deactivated 00033 // _reset->write(1); //Deactivate 00034 } 00035 else { 00036 // No Hardware Reset pin 00037 _reset = NULL; //Construct dummy pin 00038 } 00039 00040 //WH clk = sclk; 00041 //WH orientation = 0; 00042 _origin = Origin_LeftTop; 00043 _char_x = 0; 00044 _char_y = 0; 00045 _transparancy = false; 00046 // set_font(Arial12x12); //Default font 00047 // set_font(FONT8x8); //Default font, shame it doesnt fit format.. waste of flash space at moment 00048 00049 tft_reset(); 00050 } 00051 00052 00053 /** Destruct a SPI_TFT LCD object 00054 * 00055 * @param none 00056 * @return none 00057 */ 00058 SPI_TFT_ILI9341::~SPI_TFT_ILI9341() { 00059 if (_reset != NULL) {delete _reset;} // HW Reset pin 00060 } 00061 00062 00063 00064 int SPI_TFT_ILI9341::width() 00065 { 00066 // if (orientation == 0 || orientation == 2) return 240; 00067 // else return 320; 00068 00069 if (_origin == Origin_LeftTop || _origin == Origin_RightBot) return TFT_WIDTH; 00070 else return TFT_HEIGHT; 00071 } 00072 00073 00074 int SPI_TFT_ILI9341::height() 00075 { 00076 // if (orientation == 0 || orientation == 2) return 320; 00077 // else return 240; 00078 00079 if (_origin == Origin_LeftTop || _origin == Origin_RightBot) return TFT_HEIGHT; 00080 else return TFT_WIDTH; 00081 } 00082 00083 //WH 00084 #if(0) 00085 void SPI_TFT_ILI9341::set_orientation(unsigned int o) 00086 { 00087 orientation = o; 00088 wr_cmd(0x36); // MEMORY_ACCESS_CONTROL 00089 switch (orientation) { 00090 case 0: 00091 _spi.write(0x48); 00092 break; 00093 case 1: 00094 _spi.write(0x28); 00095 break; 00096 case 2: 00097 _spi.write(0x88); 00098 break; 00099 case 3: 00100 _spi.write(0xE8); 00101 break; 00102 } 00103 _cs = 1; 00104 window_max(); 00105 } 00106 #else 00107 void SPI_TFT_ILI9341::set_origin(Origin origin) { 00108 _origin = origin; 00109 wr_cmd(ILI9341_MAC); // MEMORY_ACCESS_CONTROL 00110 switch (_origin) { 00111 case Origin_LeftTop: /* Left Top of panel is origin */ 00112 _spi.write(0x48); 00113 break; 00114 case Origin_RightTop: /* ok */ 00115 _spi.write(0x28); 00116 break; 00117 case Origin_RightBot: /* ok */ 00118 _spi.write(0x88); 00119 break; 00120 case Origin_LeftBot: /* ok */ 00121 _spi.write(0xE8); 00122 break; 00123 } 00124 _cs = 1; 00125 window_max(); 00126 } 00127 #endif 00128 00129 00130 // background transparancy for characters 00131 void SPI_TFT_ILI9341::set_transparancy(bool state) { 00132 _transparancy = state; 00133 } 00134 00135 // HW Reset to tft 00136 void SPI_TFT_ILI9341::_hwreset() 00137 { 00138 // _reset is an optional pin which defaults to NC. Make sure it does not hang mbed lib 00139 if (_reset != NULL) {_reset->write(0);} //Clear _reset pin 00140 wait_us(50); 00141 if (_reset != NULL) {_reset->write(1);} //Set _reset pin 00142 wait_ms(5); 00143 } 00144 00145 00146 // write command to tft register 00147 void SPI_TFT_ILI9341::wr_cmd(unsigned char cmd) 00148 { 00149 _dc = 0; 00150 _cs = 0; 00151 _spi.write(cmd); // mbed lib 00152 _dc = 1; 00153 } 00154 00155 00156 // write data to tft 00157 void SPI_TFT_ILI9341::wr_dat(unsigned char dat) 00158 { 00159 _spi.write(dat); // mbed lib 00160 } 00161 00162 //WH 00163 // The ILI9341 can be read 00164 // Read not supported in M24SR 00165 00166 00167 // Read byte 00168 char SPI_TFT_ILI9341::rd_byte(unsigned char cmd) 00169 { 00170 char r; 00171 _dc = 0; 00172 _cs = 0; 00173 _spi.write(cmd); // mbed lib 00174 _cs = 1; 00175 r = _spi.write(0xff); 00176 _cs = 1; 00177 return(r); 00178 } 00179 00180 // Read 32 bit 00181 int SPI_TFT_ILI9341::rd_32(unsigned char cmd) 00182 { 00183 int d; 00184 char r; 00185 _dc = 0; 00186 _cs = 0; 00187 d = cmd; 00188 d = d << 1; 00189 00190 //Note WH: the 9bit format is not supported for most mbed devices...This wont work. 00191 _spi.format(9,0); // we have to add a dummy clock cycle 00192 00193 _spi.write(d); 00194 _spi.format(8,0); 00195 _dc = 1; 00196 r = _spi.write(0xff); 00197 d = r; 00198 r = _spi.write(0xff); 00199 d = (d << 8) | r; 00200 r = _spi.write(0xff); 00201 d = (d << 8) | r; 00202 r = _spi.write(0xff); 00203 d = (d << 8) | r; 00204 _cs = 1; 00205 return(d); 00206 } 00207 00208 //This may be not supported on some revisions of IL9341 00209 int SPI_TFT_ILI9341::Read_ID(void){ 00210 int r; 00211 r = rd_byte(0x0A); 00212 r = rd_byte(0x0A); 00213 r = rd_byte(0x0A); 00214 r = rd_byte(0x0A); 00215 return(r); 00216 } 00217 00218 00219 // Init code based on MI0283QT datasheet 00220 void SPI_TFT_ILI9341::tft_reset() 00221 { 00222 //WH _spi.format(8,3); // 8 bit spi Mode 3 00223 _spi.format(8,0); // 8 bit spi, mode 0 00224 00225 // _spi.frequency(4000000); // 4 Mhz SPI clock 00226 // _spi.frequency(8000000); // 8 Mhz SPI clock 00227 _spi.frequency(10000000); // 10 Mhz SPI ... works on current version of mbed F103 lib after fix for HSI/HSE... 00228 00229 _cs = 1; // cs high 00230 _dc = 1; // dc high 00231 00232 _hwreset(); // HW reset 00233 00234 wr_cmd(ILI9341_DISPLAY_RST); // SW reset 00235 wait_ms(5); 00236 00237 wr_cmd(ILI9341_DISPLAY_OFF); // display off 00238 00239 /* Start Initial Sequence ----------------------------------------------------*/ 00240 wr_cmd(ILI9341_POWERB); /* Power control B register */ 00241 _spi.write(0x00); 00242 _spi.write(0x83); 00243 _spi.write(0x30); 00244 _cs = 1; 00245 00246 wr_cmd(ILI9341_POWER_SEQ); /* Power on sequence register */ 00247 _spi.write(0x64); 00248 _spi.write(0x03); 00249 _spi.write(0x12); 00250 _spi.write(0x81); 00251 _cs = 1; 00252 00253 wr_cmd(ILI9341_DTCA); /* Driver timing control A */ 00254 _spi.write(0x85); 00255 _spi.write(0x01); 00256 _spi.write(0x79); 00257 _cs = 1; 00258 00259 wr_cmd(ILI9341_POWERA); /* Power control A register */ 00260 _spi.write(0x39); 00261 _spi.write(0x2C); 00262 _spi.write(0x00); 00263 _spi.write(0x34); 00264 _spi.write(0x02); 00265 _cs = 1; 00266 00267 wr_cmd(ILI9341_PRC); /* Pump ratio control register */ 00268 _spi.write(0x20); 00269 _cs = 1; 00270 00271 wr_cmd(ILI9341_DTCB); /* Driver timing control B */ 00272 _spi.write(0x00); 00273 _spi.write(0x00); 00274 _cs = 1; 00275 00276 wr_cmd(ILI9341_POWER1); // POWER_CONTROL_1 00277 _spi.write(0x26); 00278 _cs = 1; 00279 00280 wr_cmd(ILI9341_POWER2); // POWER_CONTROL_2 00281 _spi.write(0x11); 00282 _cs = 1; 00283 00284 wr_cmd(ILI9341_VCOM1); // VCOM_CONTROL_1 00285 _spi.write(0x35); 00286 _spi.write(0x3E); 00287 _cs = 1; 00288 00289 wr_cmd(ILI9341_VCOM2); // VCOM_CONTROL_2 00290 _spi.write(0xBE); 00291 _cs = 1; 00292 00293 wr_cmd(ILI9341_MAC); // MEMORY_ACCESS_CONTROL 00294 _spi.write(0x48); // my,mx,mv,ml,BGR,mh,0,0 00295 _cs = 1; 00296 00297 wr_cmd(ILI9341_PIXEL_FORMAT); /* Pixel Format register */ 00298 _spi.write(0x55); // 16 bit pixel 00299 _cs = 1; 00300 00301 wr_cmd(ILI9341_FRC); /* Frame Rate Control register */ 00302 _spi.write(0x00); 00303 _spi.write(0x1B); 00304 _cs = 1; 00305 00306 wr_cmd(ILI9341_3GAMMA_EN); /* 3 Gamma enable register */ 00307 _spi.write(0x08); // Gamma Function Disable 00308 _cs = 1; 00309 00310 wr_cmd(ILI9341_GAMMA); /* Gamma register */ 00311 _spi.write(0x01); // gamma set for curve 01/2/04/08 00312 _cs = 1; 00313 00314 wr_cmd(ILI9341_PGAMMA); /* Positive Gamma Correction register*/ 00315 _spi.write(0x1F); 00316 _spi.write(0x1A); 00317 _spi.write(0x18); 00318 _spi.write(0x0A); 00319 _spi.write(0x0F); 00320 _spi.write(0x06); 00321 _spi.write(0x45); 00322 _spi.write(0x87); 00323 _spi.write(0x32); 00324 _spi.write(0x0A); 00325 _spi.write(0x07); 00326 _spi.write(0x02); 00327 _spi.write(0x07); 00328 _spi.write(0x05); 00329 _spi.write(0x00); 00330 _cs = 1; 00331 00332 wr_cmd(ILI9341_NGAMMA); /* Negative Gamma Correction register*/ 00333 _spi.write(0x00); 00334 _spi.write(0x25); 00335 _spi.write(0x27); 00336 _spi.write(0x05); 00337 _spi.write(0x10); 00338 _spi.write(0x09); 00339 _spi.write(0x3A); 00340 _spi.write(0x78); 00341 _spi.write(0x4D); 00342 _spi.write(0x05); 00343 _spi.write(0x18); 00344 _spi.write(0x0D); 00345 _spi.write(0x38); 00346 _spi.write(0x3A); 00347 _spi.write(0x1F); 00348 _cs = 1; 00349 00350 window_max(); 00351 00352 //wr_cmd(ILI9341_TEAR_OFF); // tearing effect off 00353 //_cs = 1; 00354 00355 //wr_cmd(ILI9341_TEAR_ON); // tearing effect on 00356 //_cs = 1; 00357 00358 wr_cmd(ILI9341_ENTRY_MODE); // entry mode 00359 _spi.write(0x07); 00360 _cs = 1; 00361 00362 wr_cmd(ILI9341_DFC); /* Display Function Control register*/ 00363 _spi.write(0x0A); 00364 _spi.write(0x82); 00365 _spi.write(0x27); 00366 _spi.write(0x00); 00367 _cs = 1; 00368 00369 wr_cmd(ILI9341_SLEEP_OUT); // sleep out 00370 _cs = 1; 00371 00372 wait_ms(100); 00373 00374 wr_cmd(ILI9341_DISPLAY_ON); 00375 _cs = 1; 00376 00377 wait_ms(100); 00378 00379 } 00380 00381 00382 void SPI_TFT_ILI9341::tft_on(bool on) 00383 { 00384 if (on) { 00385 wr_cmd(ILI9341_DISPLAY_ON); 00386 } 00387 else { 00388 wr_cmd(ILI9341_DISPLAY_OFF); 00389 } 00390 _cs = 1; 00391 } 00392 00393 void SPI_TFT_ILI9341::pixel(int x, int y, int color) 00394 { 00395 wr_cmd(ILI9341_COLUMN_ADDR); 00396 _spi.write(x >> 8); 00397 _spi.write(x); 00398 _spi.write((x+1) >> 8); //WH 00399 _spi.write(x+1); 00400 00401 _cs = 1; 00402 00403 wr_cmd(ILI9341_PAGE_ADDR); 00404 _spi.write(y >> 8); 00405 _spi.write(y); 00406 _spi.write((y+1) >> 8); //WH 00407 _spi.write(y+1); 00408 00409 _cs = 1; 00410 00411 wr_cmd(ILI9341_GRAM); // send pixel 00412 00413 // #if (SPI_16 == 1) 00414 #if(0) // dont bother switching for only one pixel 00415 // 16 Bit SPI 00416 _spi.format(16,0); // switch to 16 bit Mode 0 00417 _spi.write(color); // Write D0..D15 00418 _spi.format(8,0); // switch back to 8 bit Mode 0 00419 #else 00420 // 8 Bit SPI 00421 _spi.write(color >> 8); 00422 _spi.write(color & 0xff); 00423 #endif 00424 00425 _cs = 1; 00426 } 00427 00428 00429 void SPI_TFT_ILI9341::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h) 00430 { 00431 00432 wr_cmd(ILI9341_COLUMN_ADDR); 00433 _spi.write(x >> 8); 00434 _spi.write(x); 00435 _spi.write((x+w-1) >> 8); 00436 _spi.write(x+w-1); 00437 _cs = 1; 00438 00439 wr_cmd(ILI9341_PAGE_ADDR); 00440 _spi.write(y >> 8); 00441 _spi.write(y); 00442 _spi.write((y+h-1) >> 8); 00443 _spi.write(y+h-1); 00444 _cs = 1; 00445 } 00446 00447 00448 void SPI_TFT_ILI9341::window_max (void) 00449 { 00450 window (0, 0, width(), height()); 00451 } 00452 00453 00454 00455 /** Fill the screen with _background color 00456 * @param none 00457 * @return none 00458 */ 00459 void SPI_TFT_ILI9341::cls() 00460 { 00461 fillrect(0, 0, width()-1, height()-1, _background); 00462 } 00463 00464 00465 //WH test 00466 void SPI_TFT_ILI9341::newcls (void) 00467 { 00468 int pixels = height() * width(); 00469 int i; 00470 int color = _background; 00471 #if (SPI_16 != 1) 00472 int msb, lsb; 00473 #endif 00474 00475 window(0,0,width(),height()); 00476 00477 wr_cmd(ILI9341_GRAM); // send pixel 00478 00479 #if (SPI_16 == 1) 00480 // 16 Bit SPI 00481 _spi.format(16,0); // switch to 16 bit Mode 0 00482 00483 //unroll loop in chunks of 8 pixels 00484 for (i = 0; i < (pixels>>3); i++) { 00485 _spi.write(color); 00486 _spi.write(color); 00487 _spi.write(color); 00488 _spi.write(color); 00489 00490 _spi.write(color); 00491 _spi.write(color); 00492 _spi.write(color); 00493 _spi.write(color); 00494 } 00495 00496 //remainder 00497 for (i = 0; i < (pixels & 0x07); i++) 00498 _spi.write(color); 00499 00500 _spi.format(8,0); // switch back to 8 bit Mode 0 00501 #else 00502 // 8 Bit SPI 00503 msb = color >> 8; 00504 lsb = color & 0xff; 00505 00506 for (i = 0; i < (pixels>>3); i+=8) { 00507 _spi.write(msb); _spi.write(lsb); 00508 _spi.write(msb); _spi.write(lsb); 00509 _spi.write(msb); _spi.write(lsb); 00510 _spi.write(msb); _spi.write(lsb); 00511 00512 _spi.write(msb); _spi.write(lsb); 00513 _spi.write(msb); _spi.write(lsb); 00514 _spi.write(msb); _spi.write(lsb); 00515 _spi.write(msb); _spi.write(lsb); 00516 } 00517 00518 for (i = 0; i < (pixels & 0x07); i++) { 00519 _spi.write(msb); _spi.write(lsb); 00520 } 00521 #endif 00522 00523 _cs = 1; 00524 } 00525 00526 00527 00528 00529 void SPI_TFT_ILI9341::circle(int x0, int y0, int r, int color) 00530 { 00531 00532 int x = -r, y = 0, err = 2-2*r, e2; 00533 do { 00534 pixel(x0-x, y0+y,color); 00535 pixel(x0+x, y0+y,color); 00536 pixel(x0+x, y0-y,color); 00537 pixel(x0-x, y0-y,color); 00538 e2 = err; 00539 if (e2 <= y) { 00540 err += ++y*2+1; 00541 if (-x == y && e2 <= x) e2 = 0; 00542 } 00543 if (e2 > x) err += ++x*2+1; 00544 } while (x <= 0); 00545 00546 } 00547 00548 void SPI_TFT_ILI9341::fillcircle(int x0, int y0, int r, int color) 00549 { 00550 int x = -r, y = 0, err = 2-2*r, e2; 00551 do { 00552 vline(x0-x, y0-y, y0+y, color); 00553 vline(x0+x, y0-y, y0+y, color); 00554 e2 = err; 00555 if (e2 <= y) { 00556 err += ++y*2+1; 00557 if (-x == y && e2 <= x) e2 = 0; 00558 } 00559 if (e2 > x) err += ++x*2+1; 00560 } while (x <= 0); 00561 } 00562 00563 00564 void SPI_TFT_ILI9341::oval ( int x, int y, int b, int color, float aspect ) 00565 { 00566 /* local variables */ 00567 int col; /* Column. */ 00568 int row; /* Row. */ 00569 float aspect_square; 00570 int a_square; 00571 int b_square; 00572 int two_a_square; 00573 int two_b_square; 00574 int four_a_square; 00575 int four_b_square; 00576 int d; 00577 00578 aspect_square = aspect * aspect; 00579 00580 b_square = b * b; 00581 a_square = b_square / aspect_square; 00582 row = b; 00583 col = 0; 00584 two_a_square = a_square << 1; 00585 four_a_square = a_square << 2; 00586 four_b_square = b_square << 2; 00587 two_b_square = b_square << 1; 00588 d = two_a_square * ((row - 1) * (row)) + a_square + two_b_square * (1 - a_square); 00589 00590 while (a_square * (row) > b_square * col ) { 00591 pixel( x + col, y + row, color ); 00592 pixel( x + col, y - row, color ); 00593 pixel( x - col, y + row, color ); 00594 pixel( x - col, y - row, color ); 00595 if ( d >= 0 ) { 00596 row--; 00597 d -= four_a_square * row; 00598 } 00599 d += two_b_square * (3 + (col << 1)); 00600 col++; 00601 } 00602 00603 d = two_b_square * (col + 1) * col + two_a_square * (row * (row - 2) + 1) + (1 - two_a_square) * b_square; 00604 00605 while ( row + 1 ) { 00606 pixel( x + col, y + row, color ); 00607 pixel( x + col, y - row, color ); 00608 pixel( x - col, y + row, color ); 00609 pixel( x - col, y - row, color ); 00610 if ( d <= 0 ) { 00611 col++; 00612 d += four_b_square * col; 00613 } 00614 row--; 00615 d += two_a_square * (3 - (row << 1)); 00616 } 00617 00618 } /* End oval */ 00619 00620 00621 void SPI_TFT_ILI9341::filloval ( int x, int y, int b, int color, float aspect ) 00622 { 00623 /* local variables */ 00624 int col; /* Column. */ 00625 int row; /* Row. */ 00626 float aspect_square; 00627 int a_square; 00628 int b_square; 00629 int two_a_square; 00630 int two_b_square; 00631 int four_a_square; 00632 int four_b_square; 00633 int d; 00634 00635 aspect_square = aspect * aspect; 00636 00637 b_square = b * b; 00638 a_square = b_square / aspect_square; 00639 row = b; 00640 col = 0; 00641 two_a_square = a_square << 1; 00642 four_a_square = a_square << 2; 00643 four_b_square = b_square << 2; 00644 two_b_square = b_square << 1; 00645 d = two_a_square * ((row - 1) * (row)) + a_square + two_b_square * (1 - a_square); 00646 00647 while (a_square * (row) > b_square * col ) { 00648 vline(x - col, y - row, y + row, color); 00649 vline(x + col, y - row, y + row, color); 00650 00651 if ( d >= 0 ) { 00652 row--; 00653 d -= four_a_square * row; 00654 } 00655 d += two_b_square * (3 + (col << 1)); 00656 col++; 00657 } 00658 00659 d = two_b_square * (col + 1) * col + two_a_square * (row * (row - 2) + 1) + (1 - two_a_square) * b_square; 00660 00661 while ( row + 1 ) { 00662 vline(x - col, y - row, y + row, color); 00663 vline(x + col, y - row, y + row, color); 00664 00665 if ( d <= 0 ) { 00666 col++; 00667 d += four_b_square * col; 00668 } 00669 row--; 00670 d += two_a_square * (3 - (row << 1)); 00671 } 00672 00673 } /* End filloval */ 00674 00675 00676 void SPI_TFT_ILI9341::hline(int x0, int x1, int y, int color) 00677 { 00678 int i, w; 00679 #if (SPI_16 != 1) 00680 int msb, lsb; 00681 #endif 00682 w = x1 - x0 + 1; 00683 window(x0,y,w,1); 00684 // wr_cmd(0x2C); // send pixel 00685 wr_cmd(ILI9341_GRAM); // send pixel 00686 00687 #if (SPI_16 == 1) 00688 // 16 Bit SPI 00689 _spi.format(16,0); // switch to 16 bit Mode 0 00690 for (i = 0; i < w; i++) 00691 _spi.write(color); 00692 _spi.format(8,0); // switch back to 8 bit Mode 0 00693 #else 00694 // 8 Bit SPI 00695 msb = color >> 8; 00696 lsb = color & 0xff; 00697 for (i = 0; i < w; i++){ 00698 _spi.write(msb); 00699 _spi.write(lsb); 00700 } 00701 #endif 00702 00703 _cs = 1; 00704 window_max(); 00705 } 00706 00707 00708 00709 void SPI_TFT_ILI9341::vline(int x, int y0, int y1, int color) 00710 { 00711 int i, h; 00712 #if (SPI_16 != 1) 00713 int msb, lsb; 00714 #endif 00715 00716 h = y1 - y0 + 1; 00717 window(x,y0,1,h); 00718 // wr_cmd(0x2C); // send pixel 00719 wr_cmd(ILI9341_GRAM); // send pixel 00720 00721 #if (SPI_16 == 1) 00722 // 16 Bit SPI 00723 _spi.format(16,0); // switch to 16 bit Mode 0 00724 for (i = 0; i < h; i++) 00725 _spi.write(color); 00726 _spi.format(8,0); // switch back to 8 bit Mode 0 00727 #else 00728 // 8 Bit SPI 00729 msb = color >> 8; 00730 lsb = color & 0xff; 00731 for (i = 0; i < h; i++){ 00732 _spi.write(msb); 00733 _spi.write(lsb); 00734 } 00735 #endif 00736 00737 _cs = 1; 00738 window_max(); 00739 } 00740 00741 void SPI_TFT_ILI9341::line(int x0, int y0, int x1, int y1, int color) 00742 { 00743 //window_max(); 00744 int dx = 0, dy = 0; 00745 int dx_sym = 0, dy_sym = 0; 00746 int dx_x2 = 0, dy_x2 = 0; 00747 int di = 0; 00748 00749 dx = x1-x0; 00750 dy = y1-y0; 00751 00752 if (dx == 0) { /* vertical line */ 00753 if (y1 > y0) vline(x0,y0,y1,color); 00754 else vline(x0,y1,y0,color); 00755 return; 00756 } 00757 00758 if (dx > 0) { 00759 dx_sym = 1; 00760 } else { 00761 dx_sym = -1; 00762 } 00763 if (dy == 0) { /* horizontal line */ 00764 if (x1 > x0) hline(x0,x1,y0,color); 00765 else hline(x1,x0,y0,color); 00766 return; 00767 } 00768 00769 if (dy > 0) { 00770 dy_sym = 1; 00771 } else { 00772 dy_sym = -1; 00773 } 00774 00775 dx = dx_sym*dx; 00776 dy = dy_sym*dy; 00777 00778 dx_x2 = dx*2; 00779 dy_x2 = dy*2; 00780 00781 if (dx >= dy) { 00782 di = dy_x2 - dx; 00783 while (x0 != x1) { 00784 00785 pixel(x0, y0, color); 00786 x0 += dx_sym; 00787 if (di<0) { 00788 di += dy_x2; 00789 } else { 00790 di += dy_x2 - dx_x2; 00791 y0 += dy_sym; 00792 } 00793 } 00794 pixel(x0, y0, color); 00795 } else { 00796 di = dx_x2 - dy; 00797 while (y0 != y1) { 00798 pixel(x0, y0, color); 00799 y0 += dy_sym; 00800 if (di < 0) { 00801 di += dx_x2; 00802 } else { 00803 di += dx_x2 - dy_x2; 00804 x0 += dx_sym; 00805 } 00806 } 00807 pixel(x0, y0, color); 00808 } 00809 //WH return; 00810 } 00811 00812 00813 void SPI_TFT_ILI9341::rect(int x0, int y0, int x1, int y1, int color) 00814 { 00815 00816 if (x1 > x0) hline(x0,x1,y0,color); 00817 else hline(x1,x0,y0,color); 00818 00819 if (y1 > y0) vline(x0,y0,y1,color); 00820 else vline(x0,y1,y0,color); 00821 00822 if (x1 > x0) hline(x0,x1,y1,color); 00823 else hline(x1,x0,y1,color); 00824 00825 if (y1 > y0) vline(x1,y0,y1,color); 00826 else vline(x1,y1,y0,color); 00827 00828 //WH return; 00829 } 00830 00831 00832 void SPI_TFT_ILI9341::fillrect(int x0, int y0, int x1, int y1, int color) 00833 { 00834 //sanity check 00835 if ( x0 > x1 ) swap( int, x0, x1 ) 00836 if ( y0 > y1 ) swap( int, y0, y1 ) 00837 00838 int h = y1 - y0 + 1; 00839 int w = x1 - x0 + 1; 00840 int pixels = h * w; 00841 int i; 00842 #if (SPI_16 != 1) 00843 int msb, lsb; 00844 #endif 00845 00846 window(x0,y0,w,h); 00847 // wr_cmd(0x2C); // send pixel 00848 wr_cmd(ILI9341_GRAM); // send pixel 00849 00850 #if (SPI_16 == 1) 00851 // 16 Bit SPI 00852 _spi.format(16,0); // switch to 16 bit Mode 0 00853 00854 for (i = 0; i < pixels; i++) 00855 _spi.write(color); 00856 00857 _spi.format(8,0); // switch back to 8 bit Mode 0 00858 #else 00859 // 8 Bit SPI 00860 msb = color >> 8; 00861 lsb = color & 0xff; 00862 for (i = 0; i < pixels; i++){ 00863 _spi.write(msb); 00864 _spi.write(lsb); 00865 } 00866 #endif 00867 00868 _cs = 1; 00869 } 00870 00871 00872 void SPI_TFT_ILI9341::roundrect( int x1, int y1, int x2, int y2, int color ) 00873 { 00874 //sanity check 00875 if ( x1 > x2 ) swap( int, x1, x2 ) 00876 if ( y1 > y2 ) swap( int, y1, y2 ) 00877 00878 if ( ( x2 - x1 ) > 4 && ( y2 - y1 ) > 4 ) 00879 { 00880 pixel( x1 + 1, y1 + 1, color ); 00881 pixel( x2 - 1, y1 + 1, color ); 00882 pixel( x1 + 1, y2 - 1, color ); 00883 pixel( x2 - 1, y2 - 1, color ); 00884 //x0, x1, y 00885 hline( x1 + 2, x2 - 2 ,y1, color ); 00886 hline( x1 + 2, x2 - 2, y2, color ); 00887 //y0, y1, x 00888 vline( y1 + 2, y2 - 2, x1, color ); 00889 vline( y1 + 2, y2 - 2, x2, color ); 00890 } 00891 } 00892 00893 00894 void SPI_TFT_ILI9341::fillroundrect( int x1, int y1, int x2, int y2, int color ) 00895 { 00896 //sanity check 00897 if ( x1 > x2 ) swap( int, x1, x2 ) 00898 if ( y1 > y2 ) swap( int, y1, y2 ) 00899 00900 if ( ( x2 - x1 ) > 4 && ( y2 - y1 ) > 4 ) 00901 { 00902 for ( int i = 0; i < ( ( y2 - y1 ) / 2 ) + 1; i++ ) 00903 { 00904 switch ( i ) 00905 { 00906 case 0: 00907 hline( x1 + 2, x2 - 2, y1 + i, color ); 00908 hline( x1 + 2, x2 - 2, y2 - i, color ); 00909 break; 00910 00911 case 1: 00912 hline( x1 + 1, x2 - 1, y1 + i, color ); 00913 hline( x1 + 1, x2 - 1, y2 - i, color ); 00914 break; 00915 00916 default: 00917 hline( x1, x2, y1 + i, color ); 00918 hline( x1, x2, y2 - i, color ); 00919 break; 00920 } 00921 } 00922 } 00923 } 00924 00925 00926 00927 void SPI_TFT_ILI9341::locate(int x, int y) 00928 { 00929 _char_x = x; 00930 _char_y = y; 00931 } 00932 00933 00934 00935 int SPI_TFT_ILI9341::columns() 00936 { 00937 return width() / _font[1]; 00938 } 00939 00940 00941 00942 int SPI_TFT_ILI9341::rows() 00943 { 00944 return height() / _font[2]; 00945 } 00946 00947 00948 00949 int SPI_TFT_ILI9341::_putc(int value) 00950 { 00951 if (value == '\n') { // new line 00952 _char_x = 0; 00953 _char_y = _char_y + _font[2]; 00954 if (_char_y >= height() - _font[2]) { 00955 _char_y = 0; 00956 } 00957 } else { 00958 character(_char_x, _char_y, value); 00959 } 00960 return value; 00961 } 00962 00963 //WH 00964 #if(0) 00965 void SPI_TFT_ILI9341::character(int x, int y, int c) 00966 { 00967 unsigned int hor,vert,offset,bpl,j,i,b; 00968 unsigned char* zeichen; 00969 unsigned char z,w; 00970 00971 if ((c < 31) || (c > 127)) return; // test char range 00972 00973 // read font parameter from start of array 00974 offset = _font[0]; // bytes / char 00975 hor = _font[1]; // get hor size of font 00976 vert = _font[2]; // get vert size of font 00977 bpl = _font[3]; // bytes per line 00978 00979 if (_char_x + hor > width()) { 00980 _char_x = 0; 00981 _char_y = _char_y + vert; 00982 if (_char_y >= height() - _font[2]) { 00983 _char_y = 0; 00984 } 00985 } 00986 window(_char_x, _char_y,hor,vert); // char box 00987 wr_cmd(0x2C); // send pixel 00988 #ifndef TARGET_KL25Z // 16 Bit SPI 00989 _spi.format(16,0); 00990 #endif // switch to 16 bit Mode 0 00991 zeichen = &_font[((c -32) * offset) + 4]; // start of char bitmap 00992 w = zeichen[0]; // width of actual char 00993 for (j=0; j<vert; j++) { // vert line 00994 for (i=0; i<hor; i++) { // horz line 00995 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; 00996 b = 1 << (j & 0x07); 00997 if (( z & b ) == 0x00) { 00998 #ifndef TARGET_KL25Z // 16 Bit SPI 00999 _spi.write(_background); 01000 #else 01001 _spi.write(_background >> 8); 01002 _spi.write(_background & 0xff); 01003 #endif 01004 } else { 01005 #ifndef TARGET_KL25Z // 16 Bit SPI 01006 _spi.write(_foreground); 01007 #else 01008 _spi.write(_foreground >> 8); 01009 _spi.write(_foreground & 0xff); 01010 #endif 01011 } 01012 } 01013 } 01014 _cs = 1; 01015 #ifndef TARGET_KL25Z // 16 Bit SPI 01016 _spi.format(8,0); 01017 #endif 01018 window_max(); 01019 if ((w + 2) < hor) { // x offset to next char 01020 __char_x += w + 2; 01021 } else __char_x += hor; 01022 } 01023 #else 01024 01025 #if (TRANSPARANCY == 1) 01026 //WH write foreground, write background only when not transparant mode 01027 void SPI_TFT_ILI9341::character(int x, int y, int c) 01028 { 01029 unsigned int hor,vert,offset,bpl,j,i,b; 01030 unsigned char* symbol; 01031 unsigned char z,w; 01032 01033 if ((c < 31) || (c > 127)) return; // test char range 01034 01035 // read font parameter from start of array 01036 offset = _font[0]; // bytes / char 01037 hor = _font[1]; // get hor size of font 01038 vert = _font[2]; // get vert size of font 01039 bpl = _font[3]; // bytes per line 01040 01041 if (_char_x + hor > width()) { 01042 _char_x = 0; 01043 _char_y = _char_y + vert; 01044 if (_char_y >= height() - vert) { 01045 _char_y = 0; 01046 } 01047 } 01048 01049 symbol = &_font[((c - 32) * offset) + 4]; // start of char bitmap 01050 w = symbol[0]; // width of actual char (proportional font) 01051 for (j=0; j<vert; j++) { // vert line 01052 for (i=0; i<hor; i++) { // horz line 01053 z = symbol[bpl * i + ((j & 0xF8) >> 3) + 1]; 01054 b = 1 << (j & 0x07); 01055 01056 // Test bit in character bitmap to write either _foreground or _background color 01057 if (( z & b ) == 0x00) { 01058 // bit is 0, write _background color 01059 if (!_transparancy) { // write background color only when transparancy is 'off' 01060 pixel(_char_x+i, _char_y+j, _background); 01061 } 01062 } 01063 else { 01064 // bit is 1, write _foreground color 01065 pixel(_char_x+i, _char_y+j, _foreground); 01066 } // if bit 01067 } // for i 01068 } // for j 01069 01070 window_max(); 01071 01072 if ((w + 2) < hor) { // x offset to next char 01073 _char_x += w + 2; 01074 } else _char_x += hor; 01075 } 01076 01077 #else 01078 01079 //WH write foreground and background 01080 void SPI_TFT_ILI9341::character(int x, int y, int c) 01081 { 01082 unsigned int hor,vert,offset,bpl,j,i,b; 01083 unsigned char* symbol; 01084 unsigned char z,w; 01085 01086 if ((c < 31) || (c > 127)) return; // test char range 01087 01088 // read font parameter from start of array 01089 offset = _font[0]; // bytes / char 01090 hor = _font[1]; // get hor size of font 01091 vert = _font[2]; // get vert size of font 01092 bpl = _font[3]; // bytes per line 01093 01094 if (_char_x + hor > width()) { 01095 _char_x = 0; 01096 _char_y = _char_y + vert; 01097 if (_char_y >= height() - vert) { 01098 _char_y = 0; 01099 } 01100 } 01101 window(_char_x, _char_y, hor, vert); // char box 01102 // wr_cmd(0x2C); // send pixel 01103 wr_cmd(ILI9341_GRAM); // send pixel 01104 01105 #if (SPI_16 == 1) 01106 // 16 Bit SPI 01107 _spi.format(16,0); // switch to 16 bit Mode 0 01108 #endif 01109 symbol = &_font[((c - 32) * offset) + 4]; // start of char bitmap 01110 w = symbol[0]; // width of actual char (proportional font) 01111 for (j=0; j<vert; j++) { // vert line 01112 for (i=0; i<hor; i++) { // horz line 01113 z = symbol[bpl * i + ((j & 0xF8) >> 3) + 1]; 01114 b = 1 << (j & 0x07); 01115 01116 // Test bit in character bitmap to write either _foreground or _background color 01117 if (( z & b ) == 0x00) { 01118 // bit is 0, write _background color 01119 #if (SPI_16 == 1) 01120 // 16 Bit SPI 01121 _spi.write(_background); 01122 #else 01123 // 8 Bit SPI 01124 _spi.write(_background >> 8); 01125 _spi.write(_background & 0xff); 01126 #endif 01127 } 01128 else { 01129 // bit is 1, write _foreground color 01130 #if (SPI_16 == 1) 01131 // 16 Bit SPI 01132 _spi.write(_foreground); 01133 #else 01134 // 8 Bit SPI 01135 _spi.write(_foreground >> 8); 01136 _spi.write(_foreground & 0xff); 01137 #endif 01138 } // if bit 01139 } // for i 01140 } // for j 01141 01142 _cs = 1; 01143 #if (SPI_16 == 1) // 16 Bit SPI 01144 _spi.format(8,0); // switch back to 8 bit Mode 0 01145 #endif 01146 window_max(); 01147 01148 if ((w + 2) < hor) { // x offset to next char 01149 _char_x += w + 2; 01150 } else _char_x += hor; 01151 } 01152 #endif 01153 01154 #endif 01155 01156 01157 void SPI_TFT_ILI9341::set_font(unsigned char* f) 01158 { 01159 _font = f; 01160 } 01161 01162 01163 01164 void SPI_TFT_ILI9341::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap) 01165 { 01166 unsigned int j; 01167 int padd; 01168 unsigned short *bitmap_ptr = (unsigned short *)bitmap; 01169 #if (SPI_16 != 1) // 16 Bit SPI 01170 unsigned short pix_temp; 01171 #endif 01172 01173 unsigned int i; 01174 01175 // the lines are padded to multiple of 4 bytes in a bitmap 01176 padd = -1; 01177 do { 01178 padd ++; 01179 } while (2*(w + padd)%4 != 0); 01180 window(x, y, w, h); 01181 bitmap_ptr += ((h - 1)* (w + padd)); 01182 // wr_cmd(0x2C); // send pixel 01183 wr_cmd(ILI9341_GRAM); // send pixel 01184 01185 #if (SPI_16 == 1) // 16 Bit SPI 01186 _spi.format(16,0); // switch to 16 bit Mode 0 01187 #endif 01188 for (j = 0; j < h; j++) { //Lines 01189 for (i = 0; i < w; i++) { // one line 01190 #if (SPI_16 == 1) 01191 // 16 Bit SPI 01192 _spi.write(*bitmap_ptr); // one line 01193 bitmap_ptr++; 01194 #else 01195 // 8 Bit SPI 01196 pix_temp = *bitmap_ptr; 01197 _spi.write(pix_temp >> 8); 01198 _spi.write(pix_temp); 01199 bitmap_ptr++; 01200 #endif 01201 } 01202 bitmap_ptr -= 2*w; 01203 bitmap_ptr -= padd; 01204 } 01205 _cs = 1; 01206 01207 #if (SPI_16 == 1) 01208 _spi.format(8,0); // switch back to 8 bit Mode 0 01209 #endif 01210 window_max(); 01211 } 01212 01213 01214 // local filesystem is not implemented in kinetis board, but you can add an SD card 01215 01216 int SPI_TFT_ILI9341::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP) 01217 { 01218 01219 #define OffsetPixelWidth 18 01220 #define OffsetPixelHeigh 22 01221 #define OffsetFileSize 34 01222 #define OffsetPixData 10 01223 #define OffsetBPP 28 01224 01225 char filename[50]; 01226 unsigned char BMP_Header[54]; 01227 unsigned short BPP_t; 01228 unsigned int PixelWidth,PixelHeigh,start_data; 01229 unsigned int i,off; 01230 int padd,j; 01231 unsigned short *line; 01232 01233 // get the filename 01234 i=0; 01235 while (*Name_BMP!='\0') { 01236 filename[i++]=*Name_BMP++; 01237 } 01238 filename[i] = 0; 01239 01240 FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file 01241 if (!Image) { 01242 return(0); // error file not found ! 01243 } 01244 01245 fread(&BMP_Header[0],1,54,Image); // get the BMP Header 01246 01247 if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte 01248 fclose(Image); 01249 return(-1); // error no BMP file 01250 } 01251 01252 BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8); 01253 if (BPP_t != 0x0010) { 01254 fclose(Image); 01255 return(-2); // error no 16 bit BMP 01256 } 01257 01258 PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24); 01259 PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24); 01260 if (PixelHeigh > height() + y || PixelWidth > width() + x) { 01261 fclose(Image); 01262 return(-3); // to big 01263 } 01264 01265 start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24); 01266 01267 line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line 01268 if (line == NULL) { 01269 return(-4); // error no memory 01270 } 01271 01272 // the bmp lines are padded to multiple of 4 bytes 01273 padd = -1; 01274 do { 01275 padd ++; 01276 } while ((PixelWidth * 2 + padd)%4 != 0); 01277 01278 window(x, y,PixelWidth ,PixelHeigh); 01279 // wr_cmd(0x2C); // send pixel 01280 wr_cmd(ILI9341_GRAM); // send pixel 01281 01282 #if (SPI_16 == 1) 01283 _spi.format(16,0); // switch to 16 bit Mode 0 01284 #endif 01285 for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up 01286 off = j * (PixelWidth * 2 + padd) + start_data; // start of line 01287 fseek(Image, off ,SEEK_SET); 01288 fread(line,1,PixelWidth * 2,Image); // read a line - slow 01289 for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT 01290 #if (SPI_16 == 1) 01291 // one 16 bit pixel 01292 _spi.write(line[i]); 01293 #else 01294 // only 8 Bit SPI 01295 _spi.write(line[i] >> 8); 01296 _spi.write(line[i]); 01297 #endif 01298 } 01299 } 01300 _cs = 1; 01301 01302 #if (SPI_16 == 1) 01303 _spi.format(8,0); // switch back to 8 bit Mode 0 01304 #endif 01305 01306 free (line); 01307 fclose(Image); 01308 window_max(); 01309 return(1); 01310 } 01311 01312 01313 /******************************************************************************* 01314 * Function Name : WriteBMP_FAT 01315 * @brief Displays a bitmap picture loaded in Flash. 01316 * @param Xpos: specifies the X position. 01317 * @param Ypos: specifies the Y position. 01318 * @param BmpAddress: Bmp picture address in Flash. 01319 * @return None 01320 *******************************************************************************/ 01321 void SPI_TFT_ILI9341::WriteBMP_FAT(uint16_t Xpos, uint16_t Ypos, const char* BmpName) 01322 { 01323 uint32_t index = 0, size = 0, width=0, height=0; 01324 uint16_t *pBmpWord=0; 01325 // uint16_t data; 01326 01327 /* Read bitmap width*/ 01328 width = BmpName[0]+1; 01329 /* Read bitmap height*/ 01330 height = BmpName[1]+1; 01331 /* Read bitmap size */ 01332 size = width * height; /* nb of 16 bits */ 01333 01334 window(Xpos, Ypos, width , height); 01335 01336 // wr_cmd(0x2C); // send pixel 01337 wr_cmd(ILI9341_GRAM); // send pixel 01338 01339 /* Set WRX to send data */ 01340 //WH _dc = 1; 01341 01342 #if (SPI_16 == 1) 01343 _spi.format(16,0); // switch to 16 bit Mode 0 01344 #endif 01345 01346 pBmpWord = (uint16_t *) (&BmpName[5]); 01347 /* Send to the screen */ 01348 for(index = 0; index < size; index++) 01349 { 01350 #if (SPI_16 == 1) 01351 // one 16 bit pixel 01352 _spi.write(*pBmpWord); 01353 #else 01354 // only 8 Bit SPI 01355 _spi.write(*pBmpWord & 0xFF); 01356 _spi.write((*pBmpWord>>8) & 0xFF); 01357 #endif 01358 01359 pBmpWord++; 01360 } 01361 01362 /* Set LCD control line(/CS) */ 01363 _cs = 1; 01364 01365 #if (SPI_16 == 1) 01366 _spi.format(8,0); // switch back to 8 bit Mode 0 01367 #endif 01368 01369 window_max(); 01370 } 01371 01372
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