Peter Drescher / SPI_TFT

Library to control a QVGA TFT connected to SPI. You can use printf to print text The lib can handle different fonts, draw lines, circles, rect and bmp

Dependents:   TFT_Test1 SourceCodePro31-SB Mandelbrot Mindwave-screen ... more

See http://mbed.org/cookbook/SPI-driven-QVGA-TFT for details.

SPI_TFT.cpp@4:824715115046, 2012-09-20 (annotated)

Committer:
dreschpe
Date:
Thu Sep 20 23:32:07 2012 +0000
Revision:
4:824715115046
Parent:
3:7f1d793b90df
Child:
5:9cbf4a534f7e
Bugfix + add comment

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:de9d1462a835 1 /* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
dreschpe 0:de9d1462a835 2 * Copyright (c) 2011 Peter Drescher - DC2PD
dreschpe 0:de9d1462a835 3 *
dreschpe 0:de9d1462a835 4 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
dreschpe 0:de9d1462a835 5 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
dreschpe 0:de9d1462a835 6 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
dreschpe 0:de9d1462a835 7 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
dreschpe 0:de9d1462a835 8 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
dreschpe 0:de9d1462a835 9 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
dreschpe 0:de9d1462a835 10 * THE SOFTWARE.
dreschpe 0:de9d1462a835 11 */
dreschpe 0:de9d1462a835 12
dreschpe 0:de9d1462a835 13
dreschpe 0:de9d1462a835 14 // fix bmp padding for Bitmap function
dreschpe 0:de9d1462a835 15 // speed up pixel
dreschpe 0:de9d1462a835 16 // 30.12.11 fix cls
dreschpe 0:de9d1462a835 17 // 11.03.12 use DMA to speed up
dreschpe 0:de9d1462a835 18 // 15.03.12 use SSEL for TFT CS to enable DMA Register writes
dreschpe 0:de9d1462a835 19 // 06.04.12 fix SSEL CS problem
dreschpe 0:de9d1462a835 20 // 06.04.12 use direct access to the spi register to speed up the library.
dreschpe 3:7f1d793b90df 21 // 11.09.12 switch back to using io pin as cs to avoid problems with SSEL CS.
dreschpe 4:824715115046 22 // 21.09.12 fix Bug in BMP_16
dreschpe 3:7f1d793b90df 23
dreschpe 0:de9d1462a835 24
dreschpe 0:de9d1462a835 25 #include "SPI_TFT.h"
dreschpe 0:de9d1462a835 26 #include "mbed.h"
dreschpe 0:de9d1462a835 27
dreschpe 0:de9d1462a835 28
dreschpe 0:de9d1462a835 29 #define BPP 16 // Bits per pixel
dreschpe 0:de9d1462a835 30
dreschpe 0:de9d1462a835 31
dreschpe 3:7f1d793b90df 32 extern Serial pc;
dreschpe 0:de9d1462a835 33 //extern DigitalOut xx; // debug !!
dreschpe 0:de9d1462a835 34
dreschpe 0:de9d1462a835 35 SPI_TFT::SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, const char *name)
dreschpe 3:7f1d793b90df 36 : _spi(mosi, miso, sclk), _cs(cs), _reset(reset),GraphicsDisplay(name)
dreschpe 3:7f1d793b90df 37 {
dreschpe 0:de9d1462a835 38 tft_reset();
dreschpe 0:de9d1462a835 39 orientation = 0;
dreschpe 0:de9d1462a835 40 char_x = 0;
dreschpe 0:de9d1462a835 41 if (mosi == p11 || mosi == P0_18) spi_port = 0; // we must know the used SPI port to setup the DMA
dreschpe 0:de9d1462a835 42 else spi_port = 1;
dreschpe 0:de9d1462a835 43 }
dreschpe 0:de9d1462a835 44
dreschpe 3:7f1d793b90df 45 int SPI_TFT::width()
dreschpe 3:7f1d793b90df 46 {
dreschpe 0:de9d1462a835 47 if (orientation == 0 || orientation == 2) return 240;
dreschpe 0:de9d1462a835 48 else return 320;
dreschpe 0:de9d1462a835 49 }
dreschpe 0:de9d1462a835 50
dreschpe 0:de9d1462a835 51
dreschpe 3:7f1d793b90df 52 int SPI_TFT::height()
dreschpe 3:7f1d793b90df 53 {
dreschpe 0:de9d1462a835 54 if (orientation == 0 || orientation == 2) return 320;
dreschpe 0:de9d1462a835 55 else return 240;
dreschpe 0:de9d1462a835 56 }
dreschpe 0:de9d1462a835 57
dreschpe 0:de9d1462a835 58
dreschpe 3:7f1d793b90df 59 void SPI_TFT::set_orientation(unsigned int o)
dreschpe 3:7f1d793b90df 60 {
dreschpe 0:de9d1462a835 61 orientation = o;
dreschpe 0:de9d1462a835 62 switch (orientation) {
dreschpe 0:de9d1462a835 63 case 0:
dreschpe 0:de9d1462a835 64 wr_reg(0x16, 0x08);
dreschpe 0:de9d1462a835 65 break;
dreschpe 0:de9d1462a835 66 case 1:
dreschpe 0:de9d1462a835 67 wr_reg(0x16, 0x68);
dreschpe 0:de9d1462a835 68 break;
dreschpe 0:de9d1462a835 69 case 2:
dreschpe 0:de9d1462a835 70 wr_reg(0x16, 0xC8);
dreschpe 0:de9d1462a835 71 break;
dreschpe 0:de9d1462a835 72 case 3:
dreschpe 0:de9d1462a835 73 wr_reg(0x16, 0xA8);
dreschpe 0:de9d1462a835 74 break;
dreschpe 0:de9d1462a835 75 }
dreschpe 0:de9d1462a835 76 WindowMax();
dreschpe 0:de9d1462a835 77 }
dreschpe 0:de9d1462a835 78
dreschpe 0:de9d1462a835 79
dreschpe 0:de9d1462a835 80 // write command to tft register
dreschpe 0:de9d1462a835 81
dreschpe 3:7f1d793b90df 82 void SPI_TFT::wr_cmd(unsigned char cmd)
dreschpe 3:7f1d793b90df 83 {
dreschpe 0:de9d1462a835 84 unsigned short spi_d;
dreschpe 0:de9d1462a835 85 spi_d = 0x7000 | cmd ;
dreschpe 1:17e12e4e149f 86 _cs = 0;
dreschpe 0:de9d1462a835 87 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 88 LPC_SSP0->DR = spi_d;
dreschpe 1:17e12e4e149f 89 // we have to wait for SPI IDLE to set CS back to high
dreschpe 0:de9d1462a835 90 do {
dreschpe 0:de9d1462a835 91 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 0:de9d1462a835 92 } else {
dreschpe 0:de9d1462a835 93 LPC_SSP1->DR = spi_d;
dreschpe 0:de9d1462a835 94 do {
dreschpe 0:de9d1462a835 95 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 0:de9d1462a835 96 }
dreschpe 1:17e12e4e149f 97 _cs = 1;
dreschpe 0:de9d1462a835 98 }
dreschpe 0:de9d1462a835 99
dreschpe 0:de9d1462a835 100
dreschpe 0:de9d1462a835 101
dreschpe 3:7f1d793b90df 102 void SPI_TFT::wr_dat(unsigned char dat)
dreschpe 3:7f1d793b90df 103 {
dreschpe 0:de9d1462a835 104 unsigned short spi_d;
dreschpe 0:de9d1462a835 105 spi_d = 0x7200 | dat;
dreschpe 1:17e12e4e149f 106 _cs = 0;
dreschpe 0:de9d1462a835 107 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 108 LPC_SSP0->DR = spi_d;
dreschpe 1:17e12e4e149f 109 // we have to wait for SPI IDLE to set CS back to high
dreschpe 0:de9d1462a835 110 do {
dreschpe 0:de9d1462a835 111 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 0:de9d1462a835 112 } else {
dreschpe 0:de9d1462a835 113 LPC_SSP1->DR = spi_d;
dreschpe 0:de9d1462a835 114 do {
dreschpe 0:de9d1462a835 115 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 0:de9d1462a835 116 }
dreschpe 1:17e12e4e149f 117 _cs = 1;
dreschpe 0:de9d1462a835 118 }
dreschpe 0:de9d1462a835 119
dreschpe 0:de9d1462a835 120
dreschpe 0:de9d1462a835 121
dreschpe 0:de9d1462a835 122 // the HX8347-D controller do not use the MISO (SDO) Signal.
dreschpe 1:17e12e4e149f 123 // This is a bug - ?
dreschpe 1:17e12e4e149f 124 // A read will return 0 at the moment
dreschpe 0:de9d1462a835 125
dreschpe 3:7f1d793b90df 126 unsigned short SPI_TFT::rd_dat (void)
dreschpe 3:7f1d793b90df 127 {
dreschpe 0:de9d1462a835 128 unsigned short val = 0;
dreschpe 0:de9d1462a835 129
dreschpe 1:17e12e4e149f 130 //val = _spi.write(0x73ff); /* Dummy read 1 */
dreschpe 1:17e12e4e149f 131 //val = _spi.write(0x0000); /* Read D8..D15 */
dreschpe 0:de9d1462a835 132 return (val);
dreschpe 0:de9d1462a835 133 }
dreschpe 0:de9d1462a835 134
dreschpe 3:7f1d793b90df 135 void SPI_TFT::wr_reg (unsigned char reg, unsigned char val)
dreschpe 3:7f1d793b90df 136 {
dreschpe 0:de9d1462a835 137 wr_cmd(reg);
dreschpe 0:de9d1462a835 138 wr_dat(val);
dreschpe 0:de9d1462a835 139 }
dreschpe 0:de9d1462a835 140
dreschpe 3:7f1d793b90df 141 unsigned short SPI_TFT::rd_reg (unsigned char reg)
dreschpe 3:7f1d793b90df 142 {
dreschpe 0:de9d1462a835 143 wr_cmd(reg);
dreschpe 0:de9d1462a835 144 return(rd_dat());
dreschpe 0:de9d1462a835 145 }
dreschpe 0:de9d1462a835 146
dreschpe 3:7f1d793b90df 147 void SPI_TFT::tft_reset()
dreschpe 3:7f1d793b90df 148 {
dreschpe 1:17e12e4e149f 149 //static unsigned short driverCode;
dreschpe 0:de9d1462a835 150 _spi.format(16,3); // 16 bit spi mode 3
dreschpe 0:de9d1462a835 151 _spi.frequency(48000000); // 48 Mhz SPI clock
dreschpe 1:17e12e4e149f 152 _cs = 1; // cs high
dreschpe 0:de9d1462a835 153 _reset = 0; // display reset
dreschpe 3:7f1d793b90df 154
dreschpe 0:de9d1462a835 155 wait_us(50);
dreschpe 0:de9d1462a835 156 _reset = 1; // end reset
dreschpe 0:de9d1462a835 157 wait_ms(5);
dreschpe 0:de9d1462a835 158
dreschpe 0:de9d1462a835 159 /* Start Initial Sequence ----------------------------------------------------*/
dreschpe 0:de9d1462a835 160 wr_reg(0xEA, 0x00); /* Reset Power Control 1 */
dreschpe 0:de9d1462a835 161 wr_reg(0xEB, 0x20); /* Power Control 2 */
dreschpe 0:de9d1462a835 162 wr_reg(0xEC, 0x0C); /* Power Control 3 */
dreschpe 0:de9d1462a835 163 wr_reg(0xED, 0xC4); /* Power Control 4 */
dreschpe 0:de9d1462a835 164 wr_reg(0xE8, 0x40); /* Source OPON_N */
dreschpe 0:de9d1462a835 165 wr_reg(0xE9, 0x38); /* Source OPON_I */
dreschpe 0:de9d1462a835 166 wr_reg(0xF1, 0x01); /* */
dreschpe 0:de9d1462a835 167 wr_reg(0xF2, 0x10); /* */
dreschpe 0:de9d1462a835 168 wr_reg(0x27, 0xA3); /* Display Control 2 */
dreschpe 0:de9d1462a835 169
dreschpe 0:de9d1462a835 170 /* Power On sequence ---------------------------------------------------------*/
dreschpe 0:de9d1462a835 171 wr_reg(0x1B, 0x1B); /* Power Control 2 */
dreschpe 0:de9d1462a835 172 wr_reg(0x1A, 0x01); /* Power Control 1 */
dreschpe 0:de9d1462a835 173 wr_reg(0x24, 0x2F); /* Vcom Control 2 */
dreschpe 0:de9d1462a835 174 wr_reg(0x25, 0x57); /* Vcom Control 3 */
dreschpe 0:de9d1462a835 175 wr_reg(0x23, 0x8D); /* Vcom Control 1 */
dreschpe 0:de9d1462a835 176
dreschpe 0:de9d1462a835 177 /* Gamma settings -----------------------------------------------------------*/
dreschpe 0:de9d1462a835 178 wr_reg(0x40,0x00); //
dreschpe 0:de9d1462a835 179 wr_reg(0x41,0x00); //
dreschpe 0:de9d1462a835 180 wr_reg(0x42,0x01); //
dreschpe 0:de9d1462a835 181 wr_reg(0x43,0x13); //
dreschpe 0:de9d1462a835 182 wr_reg(0x44,0x10); //
dreschpe 0:de9d1462a835 183 wr_reg(0x45,0x26); //
dreschpe 0:de9d1462a835 184 wr_reg(0x46,0x08); //
dreschpe 0:de9d1462a835 185 wr_reg(0x47,0x51); //
dreschpe 0:de9d1462a835 186 wr_reg(0x48,0x02); //
dreschpe 0:de9d1462a835 187 wr_reg(0x49,0x12); //
dreschpe 0:de9d1462a835 188 wr_reg(0x4A,0x18); //
dreschpe 0:de9d1462a835 189 wr_reg(0x4B,0x19); //
dreschpe 0:de9d1462a835 190 wr_reg(0x4C,0x14); //
dreschpe 0:de9d1462a835 191 wr_reg(0x50,0x19); //
dreschpe 0:de9d1462a835 192 wr_reg(0x51,0x2F); //
dreschpe 0:de9d1462a835 193 wr_reg(0x52,0x2C); //
dreschpe 0:de9d1462a835 194 wr_reg(0x53,0x3E); //
dreschpe 0:de9d1462a835 195 wr_reg(0x54,0x3F); //
dreschpe 0:de9d1462a835 196 wr_reg(0x55,0x3F); //
dreschpe 0:de9d1462a835 197 wr_reg(0x56,0x2E); //
dreschpe 0:de9d1462a835 198 wr_reg(0x57,0x77); //
dreschpe 0:de9d1462a835 199 wr_reg(0x58,0x0B); //
dreschpe 0:de9d1462a835 200 wr_reg(0x59,0x06); //
dreschpe 0:de9d1462a835 201 wr_reg(0x5A,0x07); //
dreschpe 0:de9d1462a835 202 wr_reg(0x5B,0x0D); //
dreschpe 0:de9d1462a835 203 wr_reg(0x5C,0x1D); //
dreschpe 0:de9d1462a835 204 wr_reg(0x5D,0xCC); //
dreschpe 0:de9d1462a835 205
dreschpe 0:de9d1462a835 206 /* Power + Osc ---------------------------------------------------------------*/
dreschpe 0:de9d1462a835 207 wr_reg(0x18, 0x0036); /* OSC Control 1 */
dreschpe 0:de9d1462a835 208 wr_reg(0x19, 0x0001); /* OSC Control 2 */
dreschpe 0:de9d1462a835 209 wr_reg(0x01, 0x0000); /* Display Mode Control */
dreschpe 0:de9d1462a835 210 wr_reg(0x1F, 0x0088); /* Power Control 6 */
dreschpe 0:de9d1462a835 211 wait_ms(5); /* Delay 5 ms */
dreschpe 0:de9d1462a835 212 wr_reg(0x1F, 0x0080); /* Power Control 6 */
dreschpe 0:de9d1462a835 213 wait_ms(5); /* Delay 5 ms */
dreschpe 0:de9d1462a835 214 wr_reg(0x1F, 0x0090); /* Power Control 6 */
dreschpe 0:de9d1462a835 215 wait_ms(5); /* Delay 5 ms */
dreschpe 0:de9d1462a835 216 wr_reg(0x1F, 0x00D0); /* Power Control 6 */
dreschpe 0:de9d1462a835 217 wait_ms(5); /* Delay 5 ms */
dreschpe 0:de9d1462a835 218
dreschpe 0:de9d1462a835 219 wr_reg(0x17, 0x0005); /* Colmod 16Bit/Pixel */
dreschpe 0:de9d1462a835 220
dreschpe 0:de9d1462a835 221 wr_reg(0x36, 0x0000); /* Panel Characteristic */
dreschpe 0:de9d1462a835 222 wr_reg(0x28, 0x0038); /* Display Control 3 */
dreschpe 0:de9d1462a835 223 wait_ms(40);
dreschpe 0:de9d1462a835 224 wr_reg(0x28, 0x003C); /* Display Control 3 */
dreschpe 0:de9d1462a835 225 switch (orientation) {
dreschpe 0:de9d1462a835 226 case 0:
dreschpe 0:de9d1462a835 227 wr_reg(0x16, 0x0008);
dreschpe 0:de9d1462a835 228 break;
dreschpe 0:de9d1462a835 229 case 1:
dreschpe 0:de9d1462a835 230 wr_reg(0x16, 0x0068);
dreschpe 0:de9d1462a835 231 break;
dreschpe 0:de9d1462a835 232 case 2:
dreschpe 0:de9d1462a835 233 wr_reg(0x16, 0x00C8);
dreschpe 0:de9d1462a835 234 break;
dreschpe 0:de9d1462a835 235 case 3:
dreschpe 0:de9d1462a835 236 wr_reg(0x16, 0x00A8);
dreschpe 0:de9d1462a835 237 break;
dreschpe 0:de9d1462a835 238 }
dreschpe 0:de9d1462a835 239
dreschpe 0:de9d1462a835 240 // setup DMA channel 0
dreschpe 0:de9d1462a835 241 // Power up the GPDMA.
dreschpe 0:de9d1462a835 242 LPC_SC->PCONP |= (1UL << 29);
dreschpe 0:de9d1462a835 243 LPC_GPDMA->DMACConfig = 1; // enable DMA controller
dreschpe 0:de9d1462a835 244 // Reset the Interrupt status
dreschpe 0:de9d1462a835 245 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 246 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 247 LPC_GPDMACH0->DMACCLLI = 0;
dreschpe 0:de9d1462a835 248
dreschpe 0:de9d1462a835 249 WindowMax ();
dreschpe 0:de9d1462a835 250 }
dreschpe 0:de9d1462a835 251
dreschpe 0:de9d1462a835 252
dreschpe 3:7f1d793b90df 253 void SPI_TFT::pixel(int x, int y, int color)
dreschpe 3:7f1d793b90df 254 {
dreschpe 0:de9d1462a835 255 unsigned char u,l;
dreschpe 0:de9d1462a835 256 wr_reg(0x03, (x >> 0));
dreschpe 0:de9d1462a835 257 wr_reg(0x02, (x >> 8));
dreschpe 0:de9d1462a835 258 wr_reg(0x07, (y >> 0));
dreschpe 0:de9d1462a835 259 wr_reg(0x06, (y >> 8));
dreschpe 0:de9d1462a835 260 wr_cmd(0x22);
dreschpe 0:de9d1462a835 261 u = color >> 8;
dreschpe 0:de9d1462a835 262 l = color & 0xff;
dreschpe 3:7f1d793b90df 263 _cs = 0;
dreschpe 0:de9d1462a835 264 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 265 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 266 LPC_SSP0->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 267 LPC_SSP0->DR = u; // high byte
dreschpe 0:de9d1462a835 268 LPC_SSP0->DR = l; // low byte
dreschpe 0:de9d1462a835 269 LPC_SSP0->CR0 |= 0x08UL; // set back to 16 bit
dreschpe 1:17e12e4e149f 270 // we have to wait for SPI IDLE to set CS back to high
dreschpe 0:de9d1462a835 271 do {
dreschpe 0:de9d1462a835 272 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 0:de9d1462a835 273 } else {
dreschpe 0:de9d1462a835 274 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 275 LPC_SSP1->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 276 LPC_SSP1->DR = u;
dreschpe 0:de9d1462a835 277 LPC_SSP1->DR = l;
dreschpe 0:de9d1462a835 278 LPC_SSP1->CR0 |= 0x08UL; // set back to 16 bit
dreschpe 1:17e12e4e149f 279 // we have to wait for SPI IDLE to set CS back to high
dreschpe 0:de9d1462a835 280 do {
dreschpe 0:de9d1462a835 281 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 0:de9d1462a835 282 }
dreschpe 1:17e12e4e149f 283 _cs = 1;
dreschpe 0:de9d1462a835 284 }
dreschpe 0:de9d1462a835 285
dreschpe 0:de9d1462a835 286
dreschpe 3:7f1d793b90df 287 void SPI_TFT::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
dreschpe 3:7f1d793b90df 288 {
dreschpe 0:de9d1462a835 289 wr_reg(0x03, x );
dreschpe 0:de9d1462a835 290 wr_reg(0x02, (x >> 8));
dreschpe 0:de9d1462a835 291 wr_reg(0x05, x+w-1 );
dreschpe 0:de9d1462a835 292 wr_reg(0x04, (x+w-1 >> 8));
dreschpe 0:de9d1462a835 293 wr_reg(0x07, y );
dreschpe 0:de9d1462a835 294 wr_reg(0x06, ( y >> 8));
dreschpe 0:de9d1462a835 295 wr_reg(0x09, ( y+h-1 ));
dreschpe 0:de9d1462a835 296 wr_reg(0x08, ( y+h-1 >> 8));
dreschpe 0:de9d1462a835 297 }
dreschpe 0:de9d1462a835 298
dreschpe 0:de9d1462a835 299
dreschpe 3:7f1d793b90df 300 void SPI_TFT::WindowMax (void)
dreschpe 3:7f1d793b90df 301 {
dreschpe 0:de9d1462a835 302 window (0, 0, width(), height());
dreschpe 0:de9d1462a835 303 }
dreschpe 0:de9d1462a835 304
dreschpe 0:de9d1462a835 305
dreschpe 3:7f1d793b90df 306 void SPI_TFT::cls (void)
dreschpe 3:7f1d793b90df 307 {
dreschpe 0:de9d1462a835 308 //unsigned int i
dreschpe 0:de9d1462a835 309
dreschpe 0:de9d1462a835 310 int pixel = ( width() * height());
dreschpe 0:de9d1462a835 311 int dma_count;
dreschpe 0:de9d1462a835 312 int color = _background;
dreschpe 0:de9d1462a835 313 WindowMax();
dreschpe 0:de9d1462a835 314 wr_cmd(0x22);
dreschpe 0:de9d1462a835 315
dreschpe 0:de9d1462a835 316 // The SSEL signal is held low until the spi FIFO is emty.
dreschpe 0:de9d1462a835 317 // We have to lower the SPI clock for the 8 bit start to get the spi running
dreschpe 0:de9d1462a835 318 // until the next data word
dreschpe 3:7f1d793b90df 319
dreschpe 0:de9d1462a835 320 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 0:de9d1462a835 321
dreschpe 1:17e12e4e149f 322 _cs = 0;
dreschpe 0:de9d1462a835 323 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 324 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 0:de9d1462a835 325 /* Enable SSP0 for DMA. */
dreschpe 0:de9d1462a835 326 LPC_SSP0->DMACR = 0x2;
dreschpe 0:de9d1462a835 327 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 328 LPC_SSP0->DR = 0x72; // start byte
dreschpe 0:de9d1462a835 329 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 330 } else {
dreschpe 0:de9d1462a835 331 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 0:de9d1462a835 332 /* Enable SSP1 for DMA. */
dreschpe 0:de9d1462a835 333 LPC_SSP1->DMACR = 0x2;
dreschpe 0:de9d1462a835 334 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 335 LPC_SSP1->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 336 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 3:7f1d793b90df 337 }
dreschpe 0:de9d1462a835 338
dreschpe 0:de9d1462a835 339 // start DMA
dreschpe 0:de9d1462a835 340 do {
dreschpe 0:de9d1462a835 341 if (pixel > 4095) {
dreschpe 0:de9d1462a835 342 dma_count = 4095;
dreschpe 0:de9d1462a835 343 pixel = pixel - 4095;
dreschpe 0:de9d1462a835 344 } else {
dreschpe 0:de9d1462a835 345 dma_count = pixel;
dreschpe 0:de9d1462a835 346 pixel = 0;
dreschpe 0:de9d1462a835 347 }
dreschpe 0:de9d1462a835 348 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 349 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 350 LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 0:de9d1462a835 351 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 352 LPC_GPDMA->DMACSoftSReq = 0x1; // DMA request
dreschpe 0:de9d1462a835 353
dreschpe 0:de9d1462a835 354 do {
dreschpe 0:de9d1462a835 355 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 356
dreschpe 0:de9d1462a835 357 } while (pixel > 0);
dreschpe 0:de9d1462a835 358 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 359 do {
dreschpe 0:de9d1462a835 360 } while ((0x0010 & LPC_SSP0->SR) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 361 /* disable SSP0 for DMA. */
dreschpe 0:de9d1462a835 362 LPC_SSP0->DMACR = 0x0;
dreschpe 0:de9d1462a835 363 } else {
dreschpe 0:de9d1462a835 364 do {
dreschpe 0:de9d1462a835 365 } while ((0x0010 & LPC_SSP1->SR) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 366 /* disable SSP1 for DMA. */
dreschpe 0:de9d1462a835 367 LPC_SSP1->DMACR = 0x0;
dreschpe 0:de9d1462a835 368 }
dreschpe 1:17e12e4e149f 369 _cs = 1;
dreschpe 0:de9d1462a835 370 }
dreschpe 0:de9d1462a835 371
dreschpe 0:de9d1462a835 372
dreschpe 3:7f1d793b90df 373 void SPI_TFT::circle(int x0, int y0, int r, int color)
dreschpe 3:7f1d793b90df 374 {
dreschpe 0:de9d1462a835 375
dreschpe 0:de9d1462a835 376 int draw_x0, draw_y0;
dreschpe 0:de9d1462a835 377 int draw_x1, draw_y1;
dreschpe 0:de9d1462a835 378 int draw_x2, draw_y2;
dreschpe 0:de9d1462a835 379 int draw_x3, draw_y3;
dreschpe 0:de9d1462a835 380 int draw_x4, draw_y4;
dreschpe 0:de9d1462a835 381 int draw_x5, draw_y5;
dreschpe 0:de9d1462a835 382 int draw_x6, draw_y6;
dreschpe 0:de9d1462a835 383 int draw_x7, draw_y7;
dreschpe 0:de9d1462a835 384 int xx, yy;
dreschpe 0:de9d1462a835 385 int di;
dreschpe 0:de9d1462a835 386 //WindowMax();
dreschpe 0:de9d1462a835 387 if (r == 0) { /* no radius */
dreschpe 0:de9d1462a835 388 return;
dreschpe 0:de9d1462a835 389 }
dreschpe 0:de9d1462a835 390
dreschpe 0:de9d1462a835 391 draw_x0 = draw_x1 = x0;
dreschpe 0:de9d1462a835 392 draw_y0 = draw_y1 = y0 + r;
dreschpe 0:de9d1462a835 393 if (draw_y0 < height()) {
dreschpe 0:de9d1462a835 394 pixel(draw_x0, draw_y0, color); /* 90 degree */
dreschpe 0:de9d1462a835 395 }
dreschpe 0:de9d1462a835 396
dreschpe 0:de9d1462a835 397 draw_x2 = draw_x3 = x0;
dreschpe 0:de9d1462a835 398 draw_y2 = draw_y3 = y0 - r;
dreschpe 0:de9d1462a835 399 if (draw_y2 >= 0) {
dreschpe 0:de9d1462a835 400 pixel(draw_x2, draw_y2, color); /* 270 degree */
dreschpe 0:de9d1462a835 401 }
dreschpe 0:de9d1462a835 402
dreschpe 0:de9d1462a835 403 draw_x4 = draw_x6 = x0 + r;
dreschpe 0:de9d1462a835 404 draw_y4 = draw_y6 = y0;
dreschpe 0:de9d1462a835 405 if (draw_x4 < width()) {
dreschpe 0:de9d1462a835 406 pixel(draw_x4, draw_y4, color); /* 0 degree */
dreschpe 0:de9d1462a835 407 }
dreschpe 0:de9d1462a835 408
dreschpe 0:de9d1462a835 409 draw_x5 = draw_x7 = x0 - r;
dreschpe 0:de9d1462a835 410 draw_y5 = draw_y7 = y0;
dreschpe 0:de9d1462a835 411 if (draw_x5>=0) {
dreschpe 0:de9d1462a835 412 pixel(draw_x5, draw_y5, color); /* 180 degree */
dreschpe 0:de9d1462a835 413 }
dreschpe 0:de9d1462a835 414
dreschpe 0:de9d1462a835 415 if (r == 1) {
dreschpe 0:de9d1462a835 416 return;
dreschpe 0:de9d1462a835 417 }
dreschpe 0:de9d1462a835 418
dreschpe 0:de9d1462a835 419 di = 3 - 2*r;
dreschpe 0:de9d1462a835 420 xx = 0;
dreschpe 0:de9d1462a835 421 yy = r;
dreschpe 0:de9d1462a835 422 while (xx < yy) {
dreschpe 0:de9d1462a835 423
dreschpe 0:de9d1462a835 424 if (di < 0) {
dreschpe 0:de9d1462a835 425 di += 4*xx + 6;
dreschpe 0:de9d1462a835 426 } else {
dreschpe 0:de9d1462a835 427 di += 4*(xx - yy) + 10;
dreschpe 0:de9d1462a835 428 yy--;
dreschpe 0:de9d1462a835 429 draw_y0--;
dreschpe 0:de9d1462a835 430 draw_y1--;
dreschpe 0:de9d1462a835 431 draw_y2++;
dreschpe 0:de9d1462a835 432 draw_y3++;
dreschpe 0:de9d1462a835 433 draw_x4--;
dreschpe 0:de9d1462a835 434 draw_x5++;
dreschpe 0:de9d1462a835 435 draw_x6--;
dreschpe 0:de9d1462a835 436 draw_x7++;
dreschpe 0:de9d1462a835 437 }
dreschpe 0:de9d1462a835 438 xx++;
dreschpe 0:de9d1462a835 439 draw_x0++;
dreschpe 0:de9d1462a835 440 draw_x1--;
dreschpe 0:de9d1462a835 441 draw_x2++;
dreschpe 0:de9d1462a835 442 draw_x3--;
dreschpe 0:de9d1462a835 443 draw_y4++;
dreschpe 0:de9d1462a835 444 draw_y5++;
dreschpe 0:de9d1462a835 445 draw_y6--;
dreschpe 0:de9d1462a835 446 draw_y7--;
dreschpe 0:de9d1462a835 447
dreschpe 0:de9d1462a835 448 if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
dreschpe 0:de9d1462a835 449 pixel(draw_x0, draw_y0, color);
dreschpe 0:de9d1462a835 450 }
dreschpe 0:de9d1462a835 451
dreschpe 0:de9d1462a835 452 if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
dreschpe 0:de9d1462a835 453 pixel(draw_x1, draw_y1, color);
dreschpe 0:de9d1462a835 454 }
dreschpe 0:de9d1462a835 455
dreschpe 0:de9d1462a835 456 if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
dreschpe 0:de9d1462a835 457 pixel(draw_x2, draw_y2, color);
dreschpe 0:de9d1462a835 458 }
dreschpe 0:de9d1462a835 459
dreschpe 0:de9d1462a835 460 if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
dreschpe 0:de9d1462a835 461 pixel(draw_x3, draw_y3, color);
dreschpe 0:de9d1462a835 462 }
dreschpe 0:de9d1462a835 463
dreschpe 0:de9d1462a835 464 if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
dreschpe 0:de9d1462a835 465 pixel(draw_x4, draw_y4, color);
dreschpe 0:de9d1462a835 466 }
dreschpe 0:de9d1462a835 467
dreschpe 0:de9d1462a835 468 if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
dreschpe 0:de9d1462a835 469 pixel(draw_x5, draw_y5, color);
dreschpe 0:de9d1462a835 470 }
dreschpe 0:de9d1462a835 471 if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
dreschpe 0:de9d1462a835 472 pixel(draw_x6, draw_y6, color);
dreschpe 0:de9d1462a835 473 }
dreschpe 0:de9d1462a835 474 if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
dreschpe 0:de9d1462a835 475 pixel(draw_x7, draw_y7, color);
dreschpe 0:de9d1462a835 476 }
dreschpe 0:de9d1462a835 477 }
dreschpe 0:de9d1462a835 478 return;
dreschpe 0:de9d1462a835 479 }
dreschpe 0:de9d1462a835 480
dreschpe 3:7f1d793b90df 481 void SPI_TFT::fillcircle(int x, int y, int r, int color)
dreschpe 3:7f1d793b90df 482 {
dreschpe 0:de9d1462a835 483 int i;
dreschpe 0:de9d1462a835 484 for (i = 0; i <= r; i++)
dreschpe 0:de9d1462a835 485 circle(x,y,i,color);
dreschpe 0:de9d1462a835 486 }
dreschpe 0:de9d1462a835 487
dreschpe 0:de9d1462a835 488
dreschpe 0:de9d1462a835 489
dreschpe 3:7f1d793b90df 490 void SPI_TFT::hline(int x0, int x1, int y, int color)
dreschpe 3:7f1d793b90df 491 {
dreschpe 0:de9d1462a835 492 int w;
dreschpe 0:de9d1462a835 493 w = x1 - x0 + 1;
dreschpe 0:de9d1462a835 494 window(x0,y,w,1);
dreschpe 0:de9d1462a835 495 wr_cmd(0x22);
dreschpe 1:17e12e4e149f 496 _cs = 0;
dreschpe 0:de9d1462a835 497 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 498 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 0:de9d1462a835 499 /* Enable SSP0 for DMA. */
dreschpe 0:de9d1462a835 500 LPC_SSP0->DMACR = 0x2;
dreschpe 0:de9d1462a835 501 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 502 LPC_SSP0->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 503 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 504 } else {
dreschpe 0:de9d1462a835 505 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 0:de9d1462a835 506 /* Enable SSP1 for DMA. */
dreschpe 0:de9d1462a835 507 LPC_SSP1->DMACR = 0x2;
dreschpe 0:de9d1462a835 508 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 509 LPC_SSP1->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 510 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 511 }
dreschpe 0:de9d1462a835 512
dreschpe 0:de9d1462a835 513 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 514 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 515 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 0:de9d1462a835 516 LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 0:de9d1462a835 517 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 518 LPC_GPDMA->DMACSoftSReq = 0x1; // start DMA
dreschpe 0:de9d1462a835 519 do {
dreschpe 0:de9d1462a835 520 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 521 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 522 do {
dreschpe 0:de9d1462a835 523 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 524 } else {
dreschpe 0:de9d1462a835 525 do {
dreschpe 0:de9d1462a835 526 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 527 }
dreschpe 1:17e12e4e149f 528 _cs = 1;
dreschpe 0:de9d1462a835 529 WindowMax();
dreschpe 0:de9d1462a835 530 return;
dreschpe 0:de9d1462a835 531 }
dreschpe 0:de9d1462a835 532
dreschpe 3:7f1d793b90df 533 void SPI_TFT::vline(int x, int y0, int y1, int color)
dreschpe 3:7f1d793b90df 534 {
dreschpe 0:de9d1462a835 535 int h;
dreschpe 0:de9d1462a835 536 h = y1 - y0 + 1;
dreschpe 0:de9d1462a835 537 window(x,y0,1,h);
dreschpe 0:de9d1462a835 538 wr_cmd(0x22);
dreschpe 1:17e12e4e149f 539 _cs = 0;
dreschpe 0:de9d1462a835 540 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 541 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 0:de9d1462a835 542 /* Enable SSP0 for DMA. */
dreschpe 0:de9d1462a835 543 LPC_SSP0->DMACR = 0x2;
dreschpe 0:de9d1462a835 544 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 545 LPC_SSP0->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 546 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 3:7f1d793b90df 547 } else {
dreschpe 0:de9d1462a835 548 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 0:de9d1462a835 549 /* Enable SSP1 for DMA. */
dreschpe 0:de9d1462a835 550 LPC_SSP1->DMACR = 0x2;
dreschpe 0:de9d1462a835 551 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 552 LPC_SSP1->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 553 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 554 }
dreschpe 0:de9d1462a835 555
dreschpe 0:de9d1462a835 556 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 557 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 558 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 0:de9d1462a835 559 LPC_GPDMACH0->DMACCControl = h | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 0:de9d1462a835 560 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 561 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 0:de9d1462a835 562 do {
dreschpe 0:de9d1462a835 563 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 564
dreschpe 0:de9d1462a835 565 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 566 do {
dreschpe 0:de9d1462a835 567 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 568 } else {
dreschpe 0:de9d1462a835 569 do {
dreschpe 0:de9d1462a835 570 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 571 }
dreschpe 1:17e12e4e149f 572 _cs = 1;
dreschpe 0:de9d1462a835 573 WindowMax();
dreschpe 0:de9d1462a835 574 return;
dreschpe 0:de9d1462a835 575 }
dreschpe 0:de9d1462a835 576
dreschpe 0:de9d1462a835 577
dreschpe 0:de9d1462a835 578
dreschpe 3:7f1d793b90df 579 void SPI_TFT::line(int x0, int y0, int x1, int y1, int color)
dreschpe 3:7f1d793b90df 580 {
dreschpe 0:de9d1462a835 581 //WindowMax();
dreschpe 0:de9d1462a835 582 int dx = 0, dy = 0;
dreschpe 0:de9d1462a835 583 int dx_sym = 0, dy_sym = 0;
dreschpe 0:de9d1462a835 584 int dx_x2 = 0, dy_x2 = 0;
dreschpe 0:de9d1462a835 585 int di = 0;
dreschpe 0:de9d1462a835 586
dreschpe 0:de9d1462a835 587 dx = x1-x0;
dreschpe 0:de9d1462a835 588 dy = y1-y0;
dreschpe 0:de9d1462a835 589
dreschpe 0:de9d1462a835 590 if (dx == 0) { /* vertical line */
dreschpe 0:de9d1462a835 591 if (y1 > y0) vline(x0,y0,y1,color);
dreschpe 0:de9d1462a835 592 else vline(x0,y1,y0,color);
dreschpe 0:de9d1462a835 593 return;
dreschpe 0:de9d1462a835 594 }
dreschpe 0:de9d1462a835 595
dreschpe 0:de9d1462a835 596 if (dx > 0) {
dreschpe 0:de9d1462a835 597 dx_sym = 1;
dreschpe 0:de9d1462a835 598 } else {
dreschpe 0:de9d1462a835 599 dx_sym = -1;
dreschpe 0:de9d1462a835 600 }
dreschpe 0:de9d1462a835 601 if (dy == 0) { /* horizontal line */
dreschpe 0:de9d1462a835 602 if (x1 > x0) hline(x0,x1,y0,color);
dreschpe 0:de9d1462a835 603 else hline(x1,x0,y0,color);
dreschpe 0:de9d1462a835 604 return;
dreschpe 0:de9d1462a835 605 }
dreschpe 0:de9d1462a835 606
dreschpe 0:de9d1462a835 607 if (dy > 0) {
dreschpe 0:de9d1462a835 608 dy_sym = 1;
dreschpe 0:de9d1462a835 609 } else {
dreschpe 0:de9d1462a835 610 dy_sym = -1;
dreschpe 0:de9d1462a835 611 }
dreschpe 0:de9d1462a835 612
dreschpe 0:de9d1462a835 613 dx = dx_sym*dx;
dreschpe 0:de9d1462a835 614 dy = dy_sym*dy;
dreschpe 0:de9d1462a835 615
dreschpe 0:de9d1462a835 616 dx_x2 = dx*2;
dreschpe 0:de9d1462a835 617 dy_x2 = dy*2;
dreschpe 0:de9d1462a835 618
dreschpe 0:de9d1462a835 619 if (dx >= dy) {
dreschpe 0:de9d1462a835 620 di = dy_x2 - dx;
dreschpe 0:de9d1462a835 621 while (x0 != x1) {
dreschpe 0:de9d1462a835 622
dreschpe 0:de9d1462a835 623 pixel(x0, y0, color);
dreschpe 0:de9d1462a835 624 x0 += dx_sym;
dreschpe 0:de9d1462a835 625 if (di<0) {
dreschpe 0:de9d1462a835 626 di += dy_x2;
dreschpe 0:de9d1462a835 627 } else {
dreschpe 0:de9d1462a835 628 di += dy_x2 - dx_x2;
dreschpe 0:de9d1462a835 629 y0 += dy_sym;
dreschpe 0:de9d1462a835 630 }
dreschpe 0:de9d1462a835 631 }
dreschpe 0:de9d1462a835 632 pixel(x0, y0, color);
dreschpe 0:de9d1462a835 633 } else {
dreschpe 0:de9d1462a835 634 di = dx_x2 - dy;
dreschpe 0:de9d1462a835 635 while (y0 != y1) {
dreschpe 0:de9d1462a835 636 pixel(x0, y0, color);
dreschpe 0:de9d1462a835 637 y0 += dy_sym;
dreschpe 0:de9d1462a835 638 if (di < 0) {
dreschpe 0:de9d1462a835 639 di += dx_x2;
dreschpe 0:de9d1462a835 640 } else {
dreschpe 0:de9d1462a835 641 di += dx_x2 - dy_x2;
dreschpe 0:de9d1462a835 642 x0 += dx_sym;
dreschpe 0:de9d1462a835 643 }
dreschpe 0:de9d1462a835 644 }
dreschpe 0:de9d1462a835 645 pixel(x0, y0, color);
dreschpe 0:de9d1462a835 646 }
dreschpe 0:de9d1462a835 647 return;
dreschpe 0:de9d1462a835 648 }
dreschpe 0:de9d1462a835 649
dreschpe 0:de9d1462a835 650
dreschpe 3:7f1d793b90df 651 void SPI_TFT::rect(int x0, int y0, int x1, int y1, int color)
dreschpe 3:7f1d793b90df 652 {
dreschpe 0:de9d1462a835 653
dreschpe 0:de9d1462a835 654 if (x1 > x0) hline(x0,x1,y0,color);
dreschpe 0:de9d1462a835 655 else hline(x1,x0,y0,color);
dreschpe 0:de9d1462a835 656
dreschpe 0:de9d1462a835 657 if (y1 > y0) vline(x0,y0,y1,color);
dreschpe 0:de9d1462a835 658 else vline(x0,y1,y0,color);
dreschpe 0:de9d1462a835 659
dreschpe 0:de9d1462a835 660 if (x1 > x0) hline(x0,x1,y1,color);
dreschpe 0:de9d1462a835 661 else hline(x1,x0,y1,color);
dreschpe 0:de9d1462a835 662
dreschpe 0:de9d1462a835 663 if (y1 > y0) vline(x1,y0,y1,color);
dreschpe 0:de9d1462a835 664 else vline(x1,y1,y0,color);
dreschpe 0:de9d1462a835 665
dreschpe 0:de9d1462a835 666 return;
dreschpe 0:de9d1462a835 667 }
dreschpe 0:de9d1462a835 668
dreschpe 0:de9d1462a835 669
dreschpe 0:de9d1462a835 670
dreschpe 3:7f1d793b90df 671 void SPI_TFT::fillrect(int x0, int y0, int x1, int y1, int color)
dreschpe 3:7f1d793b90df 672 {
dreschpe 0:de9d1462a835 673
dreschpe 0:de9d1462a835 674 int h = y1 - y0 + 1;
dreschpe 0:de9d1462a835 675 int w = x1 - x0 + 1;
dreschpe 0:de9d1462a835 676 int pixel = h * w;
dreschpe 0:de9d1462a835 677 int dma_count;
dreschpe 0:de9d1462a835 678 window(x0,y0,w,h);
dreschpe 0:de9d1462a835 679 wr_cmd(0x22);
dreschpe 1:17e12e4e149f 680 _cs = 0;
dreschpe 0:de9d1462a835 681 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 682 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 0:de9d1462a835 683 /* Enable SSP0 for DMA. */
dreschpe 0:de9d1462a835 684 LPC_SSP0->DMACR = 0x2;
dreschpe 0:de9d1462a835 685 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 686 LPC_SSP0->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 687 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 3:7f1d793b90df 688 } else {
dreschpe 0:de9d1462a835 689 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 0:de9d1462a835 690 /* Enable SSP1 for DMA. */
dreschpe 0:de9d1462a835 691 LPC_SSP1->DMACR = 0x2;
dreschpe 0:de9d1462a835 692 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 693 LPC_SSP1->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 694 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 695 }
dreschpe 0:de9d1462a835 696
dreschpe 0:de9d1462a835 697 do {
dreschpe 0:de9d1462a835 698 if (pixel > 4095) {
dreschpe 0:de9d1462a835 699 dma_count = 4095;
dreschpe 0:de9d1462a835 700 pixel = pixel - 4095;
dreschpe 0:de9d1462a835 701 } else {
dreschpe 0:de9d1462a835 702 dma_count = pixel;
dreschpe 0:de9d1462a835 703 pixel = 0;
dreschpe 0:de9d1462a835 704 }
dreschpe 0:de9d1462a835 705 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 706 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 707 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 0:de9d1462a835 708 LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 0:de9d1462a835 709 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 710 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 0:de9d1462a835 711 do {
dreschpe 0:de9d1462a835 712 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 713
dreschpe 0:de9d1462a835 714 } while (pixel > 0);
dreschpe 0:de9d1462a835 715
dreschpe 0:de9d1462a835 716 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 717 do {
dreschpe 0:de9d1462a835 718 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 719 } else {
dreschpe 0:de9d1462a835 720 do {
dreschpe 0:de9d1462a835 721 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 722 }
dreschpe 1:17e12e4e149f 723 _cs = 1;
dreschpe 0:de9d1462a835 724 WindowMax();
dreschpe 0:de9d1462a835 725 return;
dreschpe 0:de9d1462a835 726 }
dreschpe 0:de9d1462a835 727
dreschpe 0:de9d1462a835 728
dreschpe 3:7f1d793b90df 729 void SPI_TFT::locate(int x, int y)
dreschpe 3:7f1d793b90df 730 {
dreschpe 0:de9d1462a835 731 char_x = x;
dreschpe 0:de9d1462a835 732 char_y = y;
dreschpe 0:de9d1462a835 733 }
dreschpe 0:de9d1462a835 734
dreschpe 0:de9d1462a835 735
dreschpe 0:de9d1462a835 736
dreschpe 3:7f1d793b90df 737 int SPI_TFT::columns()
dreschpe 3:7f1d793b90df 738 {
dreschpe 0:de9d1462a835 739 return width() / font[1];
dreschpe 0:de9d1462a835 740 }
dreschpe 0:de9d1462a835 741
dreschpe 0:de9d1462a835 742
dreschpe 0:de9d1462a835 743
dreschpe 3:7f1d793b90df 744 int SPI_TFT::rows()
dreschpe 3:7f1d793b90df 745 {
dreschpe 0:de9d1462a835 746 return height() / font[2];
dreschpe 0:de9d1462a835 747 }
dreschpe 0:de9d1462a835 748
dreschpe 0:de9d1462a835 749
dreschpe 0:de9d1462a835 750
dreschpe 3:7f1d793b90df 751 int SPI_TFT::_putc(int value)
dreschpe 3:7f1d793b90df 752 {
dreschpe 0:de9d1462a835 753 if (value == '\n') { // new line
dreschpe 0:de9d1462a835 754 char_x = 0;
dreschpe 0:de9d1462a835 755 char_y = char_y + font[2];
dreschpe 0:de9d1462a835 756 if (char_y >= height() - font[2]) {
dreschpe 0:de9d1462a835 757 char_y = 0;
dreschpe 0:de9d1462a835 758 }
dreschpe 0:de9d1462a835 759 } else {
dreschpe 0:de9d1462a835 760 character(char_x, char_y, value);
dreschpe 0:de9d1462a835 761 }
dreschpe 0:de9d1462a835 762 return value;
dreschpe 0:de9d1462a835 763 }
dreschpe 0:de9d1462a835 764
dreschpe 0:de9d1462a835 765
dreschpe 0:de9d1462a835 766
dreschpe 0:de9d1462a835 767
dreschpe 3:7f1d793b90df 768 void SPI_TFT::character(int x, int y, int c)
dreschpe 3:7f1d793b90df 769 {
dreschpe 0:de9d1462a835 770 unsigned int hor,vert,offset,bpl,j,i,b,p;
dreschpe 0:de9d1462a835 771 unsigned char* zeichen;
dreschpe 0:de9d1462a835 772 unsigned char z,w;
dreschpe 0:de9d1462a835 773 unsigned int pixel;
dreschpe 0:de9d1462a835 774 unsigned int dma_count,dma_off;
dreschpe 0:de9d1462a835 775 uint16_t *buffer;
dreschpe 0:de9d1462a835 776
dreschpe 0:de9d1462a835 777 if ((c < 31) || (c > 127)) return; // test char range
dreschpe 0:de9d1462a835 778
dreschpe 0:de9d1462a835 779 // read font parameter from start of array
dreschpe 0:de9d1462a835 780 offset = font[0]; // bytes / char
dreschpe 0:de9d1462a835 781 hor = font[1]; // get hor size of font
dreschpe 0:de9d1462a835 782 vert = font[2]; // get vert size of font
dreschpe 0:de9d1462a835 783 bpl = font[3]; // bytes per line
dreschpe 0:de9d1462a835 784
dreschpe 0:de9d1462a835 785 if (char_x + hor > width()) {
dreschpe 0:de9d1462a835 786 char_x = 0;
dreschpe 0:de9d1462a835 787 char_y = char_y + vert;
dreschpe 0:de9d1462a835 788 if (char_y >= height() - font[2]) {
dreschpe 0:de9d1462a835 789 char_y = 0;
dreschpe 0:de9d1462a835 790 }
dreschpe 0:de9d1462a835 791 }
dreschpe 0:de9d1462a835 792 window(char_x, char_y,hor,vert); // char box
dreschpe 0:de9d1462a835 793 wr_cmd(0x22);
dreschpe 0:de9d1462a835 794
dreschpe 0:de9d1462a835 795 pixel = hor * vert; // calculate buffer size
dreschpe 0:de9d1462a835 796
dreschpe 0:de9d1462a835 797 buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the 16 bit
dreschpe 0:de9d1462a835 798 if (buffer == NULL) {
dreschpe 0:de9d1462a835 799 //led = 1;
dreschpe 0:de9d1462a835 800 //pc.printf("Malloc error !\n\r");
dreschpe 0:de9d1462a835 801 return; // error no memory
dreschpe 0:de9d1462a835 802 }
dreschpe 0:de9d1462a835 803
dreschpe 0:de9d1462a835 804 zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
dreschpe 0:de9d1462a835 805 w = zeichen[0]; // width of actual char
dreschpe 0:de9d1462a835 806 p = 0;
dreschpe 0:de9d1462a835 807 // construct the char into the buffer
dreschpe 0:de9d1462a835 808 for (j=0; j<vert; j++) { // vert line
dreschpe 0:de9d1462a835 809 for (i=0; i<hor; i++) { // horz line
dreschpe 0:de9d1462a835 810 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
dreschpe 0:de9d1462a835 811 b = 1 << (j & 0x07);
dreschpe 0:de9d1462a835 812 if (( z & b ) == 0x00) {
dreschpe 0:de9d1462a835 813 buffer[p] = _background;
dreschpe 0:de9d1462a835 814 } else {
dreschpe 0:de9d1462a835 815 buffer[p] = _foreground;
dreschpe 0:de9d1462a835 816 }
dreschpe 0:de9d1462a835 817 p++;
dreschpe 0:de9d1462a835 818 }
dreschpe 0:de9d1462a835 819 }
dreschpe 0:de9d1462a835 820
dreschpe 0:de9d1462a835 821
dreschpe 0:de9d1462a835 822 // copy the buffer with DMA SPI to display
dreschpe 0:de9d1462a835 823 dma_off = 0; // offset for DMA transfer
dreschpe 1:17e12e4e149f 824 _cs = 0;
dreschpe 0:de9d1462a835 825 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 826 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 0:de9d1462a835 827 /* Enable SSP0 for DMA. */
dreschpe 0:de9d1462a835 828 LPC_SSP0->DMACR = 0x2;
dreschpe 0:de9d1462a835 829 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 830 LPC_SSP0->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 831 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 832 } else {
dreschpe 0:de9d1462a835 833 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 0:de9d1462a835 834 /* Enable SSP1 for DMA. */
dreschpe 0:de9d1462a835 835 LPC_SSP1->DMACR = 0x2;
dreschpe 0:de9d1462a835 836 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 837 LPC_SSP1->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 838 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 839 }
dreschpe 0:de9d1462a835 840
dreschpe 0:de9d1462a835 841 // start DMA
dreschpe 0:de9d1462a835 842 do {
dreschpe 0:de9d1462a835 843 if (pixel > 4095) { // this is a giant font !
dreschpe 0:de9d1462a835 844 dma_count = 4095;
dreschpe 0:de9d1462a835 845 pixel = pixel - 4095;
dreschpe 0:de9d1462a835 846 } else {
dreschpe 0:de9d1462a835 847 dma_count = pixel;
dreschpe 0:de9d1462a835 848 pixel = 0;
dreschpe 0:de9d1462a835 849 }
dreschpe 0:de9d1462a835 850 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 851 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 852 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + dma_off);
dreschpe 0:de9d1462a835 853 LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
dreschpe 0:de9d1462a835 854 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 855 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 0:de9d1462a835 856 do {
dreschpe 0:de9d1462a835 857 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 858 dma_off = dma_off + dma_count;
dreschpe 0:de9d1462a835 859 } while (pixel > 0);
dreschpe 0:de9d1462a835 860
dreschpe 0:de9d1462a835 861 free ((uint16_t *) buffer);
dreschpe 0:de9d1462a835 862
dreschpe 0:de9d1462a835 863 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 864 do {
dreschpe 0:de9d1462a835 865 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 0:de9d1462a835 866 /* disable SSP0 for DMA. */
dreschpe 0:de9d1462a835 867 LPC_SSP0->DMACR = 0x0;
dreschpe 0:de9d1462a835 868 } else {
dreschpe 0:de9d1462a835 869 do {
dreschpe 0:de9d1462a835 870 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 0:de9d1462a835 871 /* disable SSP1 for DMA. */
dreschpe 0:de9d1462a835 872 LPC_SSP1->DMACR = 0x0;
dreschpe 0:de9d1462a835 873 }
dreschpe 1:17e12e4e149f 874 _cs = 1;
dreschpe 0:de9d1462a835 875 WindowMax();
dreschpe 0:de9d1462a835 876 if ((w + 2) < hor) { // x offset to next char
dreschpe 0:de9d1462a835 877 char_x += w + 2;
dreschpe 0:de9d1462a835 878 } else char_x += hor;
dreschpe 0:de9d1462a835 879
dreschpe 0:de9d1462a835 880 }
dreschpe 0:de9d1462a835 881
dreschpe 0:de9d1462a835 882
dreschpe 3:7f1d793b90df 883 void SPI_TFT::set_font(unsigned char* f)
dreschpe 3:7f1d793b90df 884 {
dreschpe 0:de9d1462a835 885 font = f;
dreschpe 0:de9d1462a835 886 }
dreschpe 0:de9d1462a835 887
dreschpe 0:de9d1462a835 888
dreschpe 0:de9d1462a835 889
dreschpe 3:7f1d793b90df 890 void SPI_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
dreschpe 3:7f1d793b90df 891 {
dreschpe 0:de9d1462a835 892 unsigned int j;
dreschpe 0:de9d1462a835 893 int padd;
dreschpe 0:de9d1462a835 894 unsigned short *bitmap_ptr = (unsigned short *)bitmap;
dreschpe 0:de9d1462a835 895 // the lines are padded to multiple of 4 bytes in a bitmap
dreschpe 0:de9d1462a835 896 padd = -1;
dreschpe 0:de9d1462a835 897 do {
dreschpe 0:de9d1462a835 898 padd ++;
dreschpe 0:de9d1462a835 899 } while (2*(w + padd)%4 != 0);
dreschpe 0:de9d1462a835 900 window(x, y, w, h);
dreschpe 0:de9d1462a835 901 wr_cmd(0x22);
dreschpe 1:17e12e4e149f 902 _cs = 0;
dreschpe 0:de9d1462a835 903 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 904 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 0:de9d1462a835 905 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 0:de9d1462a835 906 LPC_SSP0->DR = 0x72; // start Data
dreschpe 0:de9d1462a835 907 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 3:7f1d793b90df 908 /* Enable SSP0 for DMA. */
dreschpe 3:7f1d793b90df 909 LPC_SSP0->DMACR = 0x2;
dreschpe 3:7f1d793b90df 910
dreschpe 0:de9d1462a835 911 } else {
dreschpe 0:de9d1462a835 912 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 3:7f1d793b90df 913 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 3:7f1d793b90df 914 LPC_SSP1->DR = 0x72; // start Data command
dreschpe 3:7f1d793b90df 915 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 0:de9d1462a835 916 /* Enable SSP1 for DMA. */
dreschpe 0:de9d1462a835 917 LPC_SSP1->DMACR = 0x2;
dreschpe 3:7f1d793b90df 918
dreschpe 0:de9d1462a835 919 }
dreschpe 3:7f1d793b90df 920
dreschpe 0:de9d1462a835 921 bitmap_ptr += ((h - 1)* (w + padd));
dreschpe 0:de9d1462a835 922 for (j = 0; j < h; j++) { //Lines
dreschpe 0:de9d1462a835 923 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 924 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 925 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)bitmap_ptr;
dreschpe 0:de9d1462a835 926 LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
dreschpe 0:de9d1462a835 927 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 928 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 0:de9d1462a835 929 do {
dreschpe 0:de9d1462a835 930 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 931
dreschpe 0:de9d1462a835 932 bitmap_ptr -= w;
dreschpe 0:de9d1462a835 933 bitmap_ptr -= padd;
dreschpe 0:de9d1462a835 934 }
dreschpe 0:de9d1462a835 935
dreschpe 0:de9d1462a835 936 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 937 do {
dreschpe 0:de9d1462a835 938 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 939 } else {
dreschpe 0:de9d1462a835 940 do {
dreschpe 0:de9d1462a835 941 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 942 }
dreschpe 1:17e12e4e149f 943 _cs = 1;
dreschpe 0:de9d1462a835 944 WindowMax();
dreschpe 0:de9d1462a835 945 }
dreschpe 0:de9d1462a835 946
dreschpe 0:de9d1462a835 947
dreschpe 3:7f1d793b90df 948 int SPI_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
dreschpe 3:7f1d793b90df 949 {
dreschpe 0:de9d1462a835 950
dreschpe 0:de9d1462a835 951 #define OffsetPixelWidth 18
dreschpe 0:de9d1462a835 952 #define OffsetPixelHeigh 22
dreschpe 0:de9d1462a835 953 #define OffsetFileSize 34
dreschpe 0:de9d1462a835 954 #define OffsetPixData 10
dreschpe 0:de9d1462a835 955 #define OffsetBPP 28
dreschpe 0:de9d1462a835 956
dreschpe 0:de9d1462a835 957 char filename[50];
dreschpe 0:de9d1462a835 958 unsigned char BMP_Header[54];
dreschpe 0:de9d1462a835 959 unsigned short BPP_t;
dreschpe 0:de9d1462a835 960 unsigned int PixelWidth,PixelHeigh,start_data;
dreschpe 0:de9d1462a835 961 unsigned int i,off;
dreschpe 0:de9d1462a835 962 int padd,j;
dreschpe 0:de9d1462a835 963 unsigned short *line;
dreschpe 0:de9d1462a835 964
dreschpe 0:de9d1462a835 965 // get the filename
dreschpe 0:de9d1462a835 966 LocalFileSystem local("local");
dreschpe 0:de9d1462a835 967 sprintf(&filename[0],"/local/");
dreschpe 0:de9d1462a835 968 i=7;
dreschpe 0:de9d1462a835 969 while (*Name_BMP!='\0') {
dreschpe 0:de9d1462a835 970 filename[i++]=*Name_BMP++;
dreschpe 0:de9d1462a835 971 }
dreschpe 0:de9d1462a835 972
dreschpe 0:de9d1462a835 973 fprintf(stderr, "filename : %s \n\r",filename);
dreschpe 0:de9d1462a835 974
dreschpe 3:7f1d793b90df 975 FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
dreschpe 0:de9d1462a835 976 if (!Image) {
dreschpe 0:de9d1462a835 977 return(0); // error file not found !
dreschpe 0:de9d1462a835 978 }
dreschpe 0:de9d1462a835 979
dreschpe 0:de9d1462a835 980 fread(&BMP_Header[0],1,54,Image); // get the BMP Header
dreschpe 0:de9d1462a835 981
dreschpe 0:de9d1462a835 982 if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
dreschpe 0:de9d1462a835 983 fclose(Image);
dreschpe 0:de9d1462a835 984 return(-1); // error no BMP file
dreschpe 0:de9d1462a835 985 }
dreschpe 0:de9d1462a835 986
dreschpe 0:de9d1462a835 987 BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
dreschpe 0:de9d1462a835 988 if (BPP_t != 0x0010) {
dreschpe 0:de9d1462a835 989 fclose(Image);
dreschpe 0:de9d1462a835 990 return(-2); // error no 16 bit BMP
dreschpe 0:de9d1462a835 991 }
dreschpe 0:de9d1462a835 992
dreschpe 0:de9d1462a835 993 PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
dreschpe 0:de9d1462a835 994 PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
dreschpe 0:de9d1462a835 995 if (PixelHeigh > height() + y || PixelWidth > width() + x) {
dreschpe 0:de9d1462a835 996 fclose(Image);
dreschpe 0:de9d1462a835 997 return(-3); // to big
dreschpe 0:de9d1462a835 998 }
dreschpe 0:de9d1462a835 999
dreschpe 0:de9d1462a835 1000 start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
dreschpe 3:7f1d793b90df 1001
dreschpe 0:de9d1462a835 1002 line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
dreschpe 0:de9d1462a835 1003 if (line == NULL) {
dreschpe 0:de9d1462a835 1004 return(-4); // error no memory
dreschpe 0:de9d1462a835 1005 }
dreschpe 0:de9d1462a835 1006
dreschpe 0:de9d1462a835 1007 // the bmp lines are padded to multiple of 4 bytes
dreschpe 0:de9d1462a835 1008 padd = -1;
dreschpe 0:de9d1462a835 1009 do {
dreschpe 0:de9d1462a835 1010 padd ++;
dreschpe 0:de9d1462a835 1011 } while ((PixelWidth * 2 + padd)%4 != 0);
dreschpe 0:de9d1462a835 1012
dreschpe 3:7f1d793b90df 1013
dreschpe 3:7f1d793b90df 1014 pc.printf("width = %d \n\r",PixelWidth);
dreschpe 3:7f1d793b90df 1015 pc.printf("heigh = %d \n\r",PixelHeigh);
dreschpe 3:7f1d793b90df 1016 pc.printf("padd = %d \n\r",padd);
dreschpe 3:7f1d793b90df 1017 pc.printf("start = 0x%x \n\r",start_data);
dreschpe 3:7f1d793b90df 1018
dreschpe 3:7f1d793b90df 1019 //fseek(Image, 70 ,SEEK_SET);
dreschpe 3:7f1d793b90df 1020 window(x, y,PixelWidth ,PixelHeigh);
dreschpe 0:de9d1462a835 1021 wr_cmd(0x22);
dreschpe 1:17e12e4e149f 1022 _cs = 0;
dreschpe 3:7f1d793b90df 1023
dreschpe 3:7f1d793b90df 1024 if (spi_port == 0) { // TFT on SSP0
dreschpe 3:7f1d793b90df 1025 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 3:7f1d793b90df 1026 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 3:7f1d793b90df 1027 LPC_SSP0->DR = 0x72; // start Data
dreschpe 3:7f1d793b90df 1028 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 3:7f1d793b90df 1029 /* Enable SSP0 for DMA. */
dreschpe 3:7f1d793b90df 1030 LPC_SSP0->DMACR = 0x2;
dreschpe 3:7f1d793b90df 1031
dreschpe 3:7f1d793b90df 1032 } else {
dreschpe 3:7f1d793b90df 1033 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 3:7f1d793b90df 1034 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 3:7f1d793b90df 1035 LPC_SSP1->DR = 0x72; // start Data
dreschpe 3:7f1d793b90df 1036 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 3:7f1d793b90df 1037 /* Enable SSP1 for DMA. */
dreschpe 3:7f1d793b90df 1038 LPC_SSP1->DMACR = 0x2;
dreschpe 3:7f1d793b90df 1039 }
dreschpe 0:de9d1462a835 1040 for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
dreschpe 3:7f1d793b90df 1041 off = j * (PixelWidth * 2 + padd) + start_data; // start of line
dreschpe 0:de9d1462a835 1042 fseek(Image, off ,SEEK_SET);
dreschpe 0:de9d1462a835 1043 fread(line,1,PixelWidth * 2,Image); // read a line - slow !
dreschpe 0:de9d1462a835 1044
dreschpe 0:de9d1462a835 1045 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 0:de9d1462a835 1046 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 0:de9d1462a835 1047 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)line;
dreschpe 0:de9d1462a835 1048 LPC_GPDMACH0->DMACCControl = PixelWidth | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
dreschpe 0:de9d1462a835 1049 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ;
dreschpe 0:de9d1462a835 1050 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 0:de9d1462a835 1051 do {
dreschpe 0:de9d1462a835 1052 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 0:de9d1462a835 1053
dreschpe 0:de9d1462a835 1054 }
dreschpe 0:de9d1462a835 1055
dreschpe 0:de9d1462a835 1056 if (spi_port == 0) { // TFT on SSP0
dreschpe 0:de9d1462a835 1057 do {
dreschpe 0:de9d1462a835 1058 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 1059 } else {
dreschpe 0:de9d1462a835 1060 do {
dreschpe 0:de9d1462a835 1061 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 0:de9d1462a835 1062 }
dreschpe 1:17e12e4e149f 1063 _cs = 1;
dreschpe 0:de9d1462a835 1064 free (line);
dreschpe 0:de9d1462a835 1065 fclose(Image);
dreschpe 0:de9d1462a835 1066 WindowMax();
dreschpe 0:de9d1462a835 1067 return(1);
dreschpe 0:de9d1462a835 1068 }