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@8:65a4de035c3c, 2013-02-03 (annotated)

Committer:
dreschpe
Date:
Sun Feb 03 00:28:19 2013 +0000
Revision:
8:65a4de035c3c
Parent:
7:e753bb62eeb9
Child:
9:a63fd1ad41b0
Add NO_DMA define to switch off DMA use (LPC11U24)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 8:65a4de035c3c 1 /* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
dreschpe 8:65a4de035c3c 2 * Copyright (c) 2011 Peter Drescher - DC2PD
dreschpe 8:65a4de035c3c 3 *
dreschpe 8:65a4de035c3c 4 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
dreschpe 8:65a4de035c3c 5 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
dreschpe 8:65a4de035c3c 6 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
dreschpe 8:65a4de035c3c 7 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
dreschpe 8:65a4de035c3c 8 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
dreschpe 8:65a4de035c3c 9 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
dreschpe 8:65a4de035c3c 10 * THE SOFTWARE.
dreschpe 8:65a4de035c3c 11 */
dreschpe 8:65a4de035c3c 12
dreschpe 8:65a4de035c3c 13
dreschpe 8:65a4de035c3c 14 // fix bmp padding for Bitmap function
dreschpe 8:65a4de035c3c 15 // speed up pixel
dreschpe 8:65a4de035c3c 16 // 30.12.11 fix cls
dreschpe 8:65a4de035c3c 17 // 11.03.12 use DMA to speed up
dreschpe 8:65a4de035c3c 18 // 15.03.12 use SSEL for TFT CS to enable DMA Register writes
dreschpe 8:65a4de035c3c 19 // 06.04.12 fix SSEL CS problem
dreschpe 8:65a4de035c3c 20 // 06.04.12 use direct access to the spi register to speed up the library.
dreschpe 8:65a4de035c3c 21 // 11.09.12 switch back to using io pin as cs to avoid problems with SSEL CS.
dreschpe 8:65a4de035c3c 22 // 21.09.12 fix Bug in BMP_16
dreschpe 8:65a4de035c3c 23 // 11.10.12 patch from Hans Bergles to get SPI1 working again
dreschpe 8:65a4de035c3c 24 // 03.02.13 add a switch to switch off DMA use for LPC11U24
dreschpe 8:65a4de035c3c 25
dreschpe 8:65a4de035c3c 26 #include "SPI_TFT.h"
dreschpe 8:65a4de035c3c 27 #include "mbed.h"
dreschpe 8:65a4de035c3c 28
dreschpe 8:65a4de035c3c 29 #define BPP 16 // Bits per pixel
dreschpe 8:65a4de035c3c 30
dreschpe 8:65a4de035c3c 31 #if defined TARGET_LPC1768
dreschpe 8:65a4de035c3c 32 #define USE_DMA
dreschpe 8:65a4de035c3c 33 #endif
dreschpe 8:65a4de035c3c 34
dreschpe 8:65a4de035c3c 35 #if defined NO_DMA
dreschpe 8:65a4de035c3c 36 #undef USE_DMA
dreschpe 8:65a4de035c3c 37 #endif
dreschpe 8:65a4de035c3c 38
dreschpe 8:65a4de035c3c 39
dreschpe 8:65a4de035c3c 40 //extern Serial pc;
dreschpe 8:65a4de035c3c 41 //extern DigitalOut xx; // debug !!
dreschpe 8:65a4de035c3c 42
dreschpe 8:65a4de035c3c 43 SPI_TFT::SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, const char *name)
dreschpe 8:65a4de035c3c 44 : _spi(mosi, miso, sclk), _cs(cs), _reset(reset),GraphicsDisplay(name)
dreschpe 8:65a4de035c3c 45 {
dreschpe 8:65a4de035c3c 46 orientation = 0;
dreschpe 8:65a4de035c3c 47 char_x = 0;
dreschpe 8:65a4de035c3c 48 if (mosi == p11 || mosi == P0_18) spi_port = 0; // we must know the used SPI port to setup the DMA
dreschpe 8:65a4de035c3c 49 else spi_port = 1;
dreschpe 8:65a4de035c3c 50 tft_reset();
dreschpe 8:65a4de035c3c 51 }
dreschpe 8:65a4de035c3c 52
dreschpe 8:65a4de035c3c 53 int SPI_TFT::width()
dreschpe 8:65a4de035c3c 54 {
dreschpe 8:65a4de035c3c 55 if (orientation == 0 || orientation == 2) return 240;
dreschpe 8:65a4de035c3c 56 else return 320;
dreschpe 8:65a4de035c3c 57 }
dreschpe 8:65a4de035c3c 58
dreschpe 8:65a4de035c3c 59
dreschpe 8:65a4de035c3c 60 int SPI_TFT::height()
dreschpe 8:65a4de035c3c 61 {
dreschpe 8:65a4de035c3c 62 if (orientation == 0 || orientation == 2) return 320;
dreschpe 8:65a4de035c3c 63 else return 240;
dreschpe 8:65a4de035c3c 64 }
dreschpe 8:65a4de035c3c 65
dreschpe 8:65a4de035c3c 66
dreschpe 8:65a4de035c3c 67 void SPI_TFT::set_orientation(unsigned int o)
dreschpe 8:65a4de035c3c 68 {
dreschpe 8:65a4de035c3c 69 orientation = o;
dreschpe 8:65a4de035c3c 70 switch (orientation) {
dreschpe 8:65a4de035c3c 71 case 0:
dreschpe 8:65a4de035c3c 72 wr_reg(0x16, 0x08);
dreschpe 8:65a4de035c3c 73 break;
dreschpe 8:65a4de035c3c 74 case 1:
dreschpe 8:65a4de035c3c 75 wr_reg(0x16, 0x68);
dreschpe 8:65a4de035c3c 76 break;
dreschpe 8:65a4de035c3c 77 case 2:
dreschpe 8:65a4de035c3c 78 wr_reg(0x16, 0xC8);
dreschpe 8:65a4de035c3c 79 break;
dreschpe 8:65a4de035c3c 80 case 3:
dreschpe 8:65a4de035c3c 81 wr_reg(0x16, 0xA8);
dreschpe 8:65a4de035c3c 82 break;
dreschpe 8:65a4de035c3c 83 }
dreschpe 8:65a4de035c3c 84 WindowMax();
dreschpe 8:65a4de035c3c 85 }
dreschpe 8:65a4de035c3c 86
dreschpe 8:65a4de035c3c 87
dreschpe 8:65a4de035c3c 88 // write command to tft register
dreschpe 8:65a4de035c3c 89
dreschpe 8:65a4de035c3c 90 void SPI_TFT::wr_cmd(unsigned char cmd)
dreschpe 8:65a4de035c3c 91 {
dreschpe 8:65a4de035c3c 92 unsigned short spi_d;
dreschpe 8:65a4de035c3c 93 spi_d = 0x7000 | cmd ;
dreschpe 8:65a4de035c3c 94 _cs = 0;
dreschpe 8:65a4de035c3c 95 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 96 LPC_SSP0->DR = spi_d;
dreschpe 8:65a4de035c3c 97 // we have to wait for SPI IDLE to set CS back to high
dreschpe 8:65a4de035c3c 98 do {
dreschpe 8:65a4de035c3c 99 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 8:65a4de035c3c 100 } else {
dreschpe 8:65a4de035c3c 101 LPC_SSP1->DR = spi_d;
dreschpe 8:65a4de035c3c 102 do {
dreschpe 8:65a4de035c3c 103 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 8:65a4de035c3c 104 }
dreschpe 8:65a4de035c3c 105 _cs = 1;
dreschpe 8:65a4de035c3c 106 }
dreschpe 8:65a4de035c3c 107
dreschpe 8:65a4de035c3c 108
dreschpe 8:65a4de035c3c 109
dreschpe 8:65a4de035c3c 110 void SPI_TFT::wr_dat(unsigned char dat)
dreschpe 8:65a4de035c3c 111 {
dreschpe 8:65a4de035c3c 112 unsigned short spi_d;
dreschpe 8:65a4de035c3c 113 spi_d = 0x7200 | dat;
dreschpe 8:65a4de035c3c 114 _cs = 0;
dreschpe 8:65a4de035c3c 115 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 116 LPC_SSP0->DR = spi_d;
dreschpe 8:65a4de035c3c 117 // we have to wait for SPI IDLE to set CS back to high
dreschpe 8:65a4de035c3c 118 do {
dreschpe 8:65a4de035c3c 119 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 8:65a4de035c3c 120 } else {
dreschpe 8:65a4de035c3c 121 LPC_SSP1->DR = spi_d;
dreschpe 8:65a4de035c3c 122 do {
dreschpe 8:65a4de035c3c 123 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 8:65a4de035c3c 124 }
dreschpe 8:65a4de035c3c 125 _cs = 1;
dreschpe 8:65a4de035c3c 126 }
dreschpe 8:65a4de035c3c 127
dreschpe 8:65a4de035c3c 128
dreschpe 8:65a4de035c3c 129
dreschpe 8:65a4de035c3c 130 // the HX8347-D controller do not use the MISO (SDO) Signal.
dreschpe 8:65a4de035c3c 131 // This is a bug - ?
dreschpe 8:65a4de035c3c 132 // A read will return 0 at the moment
dreschpe 8:65a4de035c3c 133
dreschpe 8:65a4de035c3c 134 unsigned short SPI_TFT::rd_dat (void)
dreschpe 8:65a4de035c3c 135 {
dreschpe 8:65a4de035c3c 136 unsigned short val = 0;
dreschpe 8:65a4de035c3c 137
dreschpe 8:65a4de035c3c 138 //val = _spi.write(0x73ff); /* Dummy read 1 */
dreschpe 8:65a4de035c3c 139 //val = _spi.write(0x0000); /* Read D8..D15 */
dreschpe 8:65a4de035c3c 140 return (val);
dreschpe 8:65a4de035c3c 141 }
dreschpe 8:65a4de035c3c 142
dreschpe 8:65a4de035c3c 143 void SPI_TFT::wr_reg (unsigned char reg, unsigned char val)
dreschpe 8:65a4de035c3c 144 {
dreschpe 8:65a4de035c3c 145 wr_cmd(reg);
dreschpe 8:65a4de035c3c 146 wr_dat(val);
dreschpe 8:65a4de035c3c 147 }
dreschpe 8:65a4de035c3c 148
dreschpe 8:65a4de035c3c 149 unsigned short SPI_TFT::rd_reg (unsigned char reg)
dreschpe 8:65a4de035c3c 150 {
dreschpe 8:65a4de035c3c 151 wr_cmd(reg);
dreschpe 8:65a4de035c3c 152 return(rd_dat());
dreschpe 8:65a4de035c3c 153 }
dreschpe 8:65a4de035c3c 154
dreschpe 8:65a4de035c3c 155 void SPI_TFT::tft_reset()
dreschpe 8:65a4de035c3c 156 {
dreschpe 8:65a4de035c3c 157 //static unsigned short driverCode;
dreschpe 8:65a4de035c3c 158 _spi.format(16,3); // 16 bit spi mode 3
dreschpe 8:65a4de035c3c 159 _spi.frequency(48000000); // 48 Mhz SPI clock
dreschpe 8:65a4de035c3c 160 _cs = 1; // cs high
dreschpe 8:65a4de035c3c 161 _reset = 0; // display reset
dreschpe 8:65a4de035c3c 162
dreschpe 8:65a4de035c3c 163 wait_us(50);
dreschpe 8:65a4de035c3c 164 _reset = 1; // end reset
dreschpe 8:65a4de035c3c 165 wait_ms(5);
dreschpe 8:65a4de035c3c 166
dreschpe 8:65a4de035c3c 167 /* Start Initial Sequence ----------------------------------------------------*/
dreschpe 8:65a4de035c3c 168 wr_reg(0xEA, 0x00); /* Reset Power Control 1 */
dreschpe 8:65a4de035c3c 169 wr_reg(0xEB, 0x20); /* Power Control 2 */
dreschpe 8:65a4de035c3c 170 wr_reg(0xEC, 0x0C); /* Power Control 3 */
dreschpe 8:65a4de035c3c 171 wr_reg(0xED, 0xC4); /* Power Control 4 */
dreschpe 8:65a4de035c3c 172 wr_reg(0xE8, 0x40); /* Source OPON_N */
dreschpe 8:65a4de035c3c 173 wr_reg(0xE9, 0x38); /* Source OPON_I */
dreschpe 8:65a4de035c3c 174 wr_reg(0xF1, 0x01); /* */
dreschpe 8:65a4de035c3c 175 wr_reg(0xF2, 0x10); /* */
dreschpe 8:65a4de035c3c 176 wr_reg(0x27, 0xA3); /* Display Control 2 */
dreschpe 8:65a4de035c3c 177
dreschpe 8:65a4de035c3c 178 /* Power On sequence ---------------------------------------------------------*/
dreschpe 8:65a4de035c3c 179 wr_reg(0x1B, 0x1B); /* Power Control 2 */
dreschpe 8:65a4de035c3c 180 wr_reg(0x1A, 0x01); /* Power Control 1 */
dreschpe 8:65a4de035c3c 181 wr_reg(0x24, 0x2F); /* Vcom Control 2 */
dreschpe 8:65a4de035c3c 182 wr_reg(0x25, 0x57); /* Vcom Control 3 */
dreschpe 8:65a4de035c3c 183 wr_reg(0x23, 0x8D); /* Vcom Control 1 */
dreschpe 8:65a4de035c3c 184
dreschpe 8:65a4de035c3c 185 /* Gamma settings -----------------------------------------------------------*/
dreschpe 8:65a4de035c3c 186 wr_reg(0x40,0x00); //
dreschpe 8:65a4de035c3c 187 wr_reg(0x41,0x00); //
dreschpe 8:65a4de035c3c 188 wr_reg(0x42,0x01); //
dreschpe 8:65a4de035c3c 189 wr_reg(0x43,0x13); //
dreschpe 8:65a4de035c3c 190 wr_reg(0x44,0x10); //
dreschpe 8:65a4de035c3c 191 wr_reg(0x45,0x26); //
dreschpe 8:65a4de035c3c 192 wr_reg(0x46,0x08); //
dreschpe 8:65a4de035c3c 193 wr_reg(0x47,0x51); //
dreschpe 8:65a4de035c3c 194 wr_reg(0x48,0x02); //
dreschpe 8:65a4de035c3c 195 wr_reg(0x49,0x12); //
dreschpe 8:65a4de035c3c 196 wr_reg(0x4A,0x18); //
dreschpe 8:65a4de035c3c 197 wr_reg(0x4B,0x19); //
dreschpe 8:65a4de035c3c 198 wr_reg(0x4C,0x14); //
dreschpe 8:65a4de035c3c 199 wr_reg(0x50,0x19); //
dreschpe 8:65a4de035c3c 200 wr_reg(0x51,0x2F); //
dreschpe 8:65a4de035c3c 201 wr_reg(0x52,0x2C); //
dreschpe 8:65a4de035c3c 202 wr_reg(0x53,0x3E); //
dreschpe 8:65a4de035c3c 203 wr_reg(0x54,0x3F); //
dreschpe 8:65a4de035c3c 204 wr_reg(0x55,0x3F); //
dreschpe 8:65a4de035c3c 205 wr_reg(0x56,0x2E); //
dreschpe 8:65a4de035c3c 206 wr_reg(0x57,0x77); //
dreschpe 8:65a4de035c3c 207 wr_reg(0x58,0x0B); //
dreschpe 8:65a4de035c3c 208 wr_reg(0x59,0x06); //
dreschpe 8:65a4de035c3c 209 wr_reg(0x5A,0x07); //
dreschpe 8:65a4de035c3c 210 wr_reg(0x5B,0x0D); //
dreschpe 8:65a4de035c3c 211 wr_reg(0x5C,0x1D); //
dreschpe 8:65a4de035c3c 212 wr_reg(0x5D,0xCC); //
dreschpe 8:65a4de035c3c 213
dreschpe 8:65a4de035c3c 214 /* Power + Osc ---------------------------------------------------------------*/
dreschpe 8:65a4de035c3c 215 wr_reg(0x18, 0x0036); /* OSC Control 1 */
dreschpe 8:65a4de035c3c 216 wr_reg(0x19, 0x0001); /* OSC Control 2 */
dreschpe 8:65a4de035c3c 217 wr_reg(0x01, 0x0000); /* Display Mode Control */
dreschpe 8:65a4de035c3c 218 wr_reg(0x1F, 0x0088); /* Power Control 6 */
dreschpe 8:65a4de035c3c 219 wait_ms(5); /* Delay 5 ms */
dreschpe 8:65a4de035c3c 220 wr_reg(0x1F, 0x0080); /* Power Control 6 */
dreschpe 8:65a4de035c3c 221 wait_ms(5); /* Delay 5 ms */
dreschpe 8:65a4de035c3c 222 wr_reg(0x1F, 0x0090); /* Power Control 6 */
dreschpe 8:65a4de035c3c 223 wait_ms(5); /* Delay 5 ms */
dreschpe 8:65a4de035c3c 224 wr_reg(0x1F, 0x00D0); /* Power Control 6 */
dreschpe 8:65a4de035c3c 225 wait_ms(5); /* Delay 5 ms */
dreschpe 8:65a4de035c3c 226
dreschpe 8:65a4de035c3c 227 wr_reg(0x17, 0x0005); /* Colmod 16Bit/Pixel */
dreschpe 8:65a4de035c3c 228
dreschpe 8:65a4de035c3c 229 wr_reg(0x36, 0x0000); /* Panel Characteristic */
dreschpe 8:65a4de035c3c 230 wr_reg(0x28, 0x0038); /* Display Control 3 */
dreschpe 8:65a4de035c3c 231 wait_ms(40);
dreschpe 8:65a4de035c3c 232 wr_reg(0x28, 0x003C); /* Display Control 3 */
dreschpe 8:65a4de035c3c 233 switch (orientation) {
dreschpe 8:65a4de035c3c 234 case 0:
dreschpe 8:65a4de035c3c 235 wr_reg(0x16, 0x0008);
dreschpe 8:65a4de035c3c 236 break;
dreschpe 8:65a4de035c3c 237 case 1:
dreschpe 8:65a4de035c3c 238 wr_reg(0x16, 0x0068);
dreschpe 8:65a4de035c3c 239 break;
dreschpe 8:65a4de035c3c 240 case 2:
dreschpe 8:65a4de035c3c 241 wr_reg(0x16, 0x00C8);
dreschpe 8:65a4de035c3c 242 break;
dreschpe 8:65a4de035c3c 243 case 3:
dreschpe 8:65a4de035c3c 244 wr_reg(0x16, 0x00A8);
dreschpe 8:65a4de035c3c 245 break;
dreschpe 8:65a4de035c3c 246 }
dreschpe 8:65a4de035c3c 247 #if defined USE_DMA
dreschpe 8:65a4de035c3c 248 // setup DMA channel 0
dreschpe 8:65a4de035c3c 249 // Power up the GPDMA.
dreschpe 8:65a4de035c3c 250 LPC_SC->PCONP |= (1UL << 29);
dreschpe 8:65a4de035c3c 251 LPC_GPDMA->DMACConfig = 1; // enable DMA controller
dreschpe 8:65a4de035c3c 252 // Reset the Interrupt status
dreschpe 8:65a4de035c3c 253 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 254 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 255 LPC_GPDMACH0->DMACCLLI = 0;
dreschpe 8:65a4de035c3c 256 #endif
dreschpe 8:65a4de035c3c 257 WindowMax ();
dreschpe 8:65a4de035c3c 258 }
dreschpe 8:65a4de035c3c 259
dreschpe 8:65a4de035c3c 260
dreschpe 8:65a4de035c3c 261 void SPI_TFT::pixel(int x, int y, int color)
dreschpe 8:65a4de035c3c 262 {
dreschpe 8:65a4de035c3c 263 unsigned char u,l;
dreschpe 8:65a4de035c3c 264 wr_reg(0x03, (x >> 0));
dreschpe 8:65a4de035c3c 265 wr_reg(0x02, (x >> 8));
dreschpe 8:65a4de035c3c 266 wr_reg(0x07, (y >> 0));
dreschpe 8:65a4de035c3c 267 wr_reg(0x06, (y >> 8));
dreschpe 8:65a4de035c3c 268 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 269 u = color >> 8;
dreschpe 8:65a4de035c3c 270 l = color & 0xff;
dreschpe 8:65a4de035c3c 271 _cs = 0;
dreschpe 8:65a4de035c3c 272 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 273 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 274 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 275 LPC_SSP0->DR = u; // high byte
dreschpe 8:65a4de035c3c 276 LPC_SSP0->DR = l; // low byte
dreschpe 8:65a4de035c3c 277 LPC_SSP0->CR0 |= 0x08UL; // set back to 16 bit
dreschpe 8:65a4de035c3c 278 // we have to wait for SPI IDLE to set CS back to high
dreschpe 8:65a4de035c3c 279 do {
dreschpe 8:65a4de035c3c 280 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 8:65a4de035c3c 281 } else {
dreschpe 8:65a4de035c3c 282 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 283 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 284 LPC_SSP1->DR = u;
dreschpe 8:65a4de035c3c 285 LPC_SSP1->DR = l;
dreschpe 8:65a4de035c3c 286 LPC_SSP1->CR0 |= 0x08UL; // set back to 16 bit
dreschpe 8:65a4de035c3c 287 // we have to wait for SPI IDLE to set CS back to high
dreschpe 8:65a4de035c3c 288 do {
dreschpe 8:65a4de035c3c 289 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 8:65a4de035c3c 290 }
dreschpe 8:65a4de035c3c 291 _cs = 1;
dreschpe 8:65a4de035c3c 292 }
dreschpe 8:65a4de035c3c 293
dreschpe 8:65a4de035c3c 294
dreschpe 8:65a4de035c3c 295 void SPI_TFT::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
dreschpe 8:65a4de035c3c 296 {
dreschpe 8:65a4de035c3c 297 wr_reg(0x03, x );
dreschpe 8:65a4de035c3c 298 wr_reg(0x02, (x >> 8));
dreschpe 8:65a4de035c3c 299 wr_reg(0x05, x+w-1 );
dreschpe 8:65a4de035c3c 300 wr_reg(0x04, (x+w-1 >> 8));
dreschpe 8:65a4de035c3c 301 wr_reg(0x07, y );
dreschpe 8:65a4de035c3c 302 wr_reg(0x06, ( y >> 8));
dreschpe 8:65a4de035c3c 303 wr_reg(0x09, ( y+h-1 ));
dreschpe 8:65a4de035c3c 304 wr_reg(0x08, ( y+h-1 >> 8));
dreschpe 8:65a4de035c3c 305 }
dreschpe 8:65a4de035c3c 306
dreschpe 8:65a4de035c3c 307
dreschpe 8:65a4de035c3c 308 void SPI_TFT::WindowMax (void)
dreschpe 8:65a4de035c3c 309 {
dreschpe 8:65a4de035c3c 310 window (0, 0, width(), height());
dreschpe 8:65a4de035c3c 311 }
dreschpe 8:65a4de035c3c 312
dreschpe 8:65a4de035c3c 313
dreschpe 8:65a4de035c3c 314
dreschpe 8:65a4de035c3c 315 void SPI_TFT::cls (void)
dreschpe 8:65a4de035c3c 316 {
dreschpe 8:65a4de035c3c 317 int pixel = ( width() * height());
dreschpe 8:65a4de035c3c 318 #if defined USE_DMA
dreschpe 8:65a4de035c3c 319 int dma_count;
dreschpe 8:65a4de035c3c 320 int color = _background;
dreschpe 8:65a4de035c3c 321 #endif
dreschpe 8:65a4de035c3c 322 WindowMax();
dreschpe 8:65a4de035c3c 323 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 324
dreschpe 8:65a4de035c3c 325 // The SSEL signal is held low until the spi FIFO is emty.
dreschpe 8:65a4de035c3c 326 // We have to lower the SPI clock for the 8 bit start to get the spi running
dreschpe 8:65a4de035c3c 327 // until the next data word
dreschpe 8:65a4de035c3c 328 #if defined USE_DMA
dreschpe 8:65a4de035c3c 329 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 8:65a4de035c3c 330 #endif
dreschpe 8:65a4de035c3c 331 _cs = 0;
dreschpe 8:65a4de035c3c 332 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 333 #if defined USE_DMA
dreschpe 8:65a4de035c3c 334 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 335 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 336 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 337 #endif
dreschpe 8:65a4de035c3c 338 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 339 LPC_SSP0->DR = 0x72; // start byte
dreschpe 8:65a4de035c3c 340 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 341 } else {
dreschpe 8:65a4de035c3c 342 #if defined USE_DMA
dreschpe 8:65a4de035c3c 343 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 344 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 345 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 346 #endif
dreschpe 8:65a4de035c3c 347 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 348 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 349 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 350 }
dreschpe 8:65a4de035c3c 351
dreschpe 8:65a4de035c3c 352 #if defined USE_DMA
dreschpe 8:65a4de035c3c 353 // start DMA
dreschpe 8:65a4de035c3c 354 do {
dreschpe 8:65a4de035c3c 355 if (pixel > 4095) {
dreschpe 8:65a4de035c3c 356 dma_count = 4095;
dreschpe 8:65a4de035c3c 357 pixel = pixel - 4095;
dreschpe 8:65a4de035c3c 358 } else {
dreschpe 8:65a4de035c3c 359 dma_count = pixel;
dreschpe 8:65a4de035c3c 360 pixel = 0;
dreschpe 8:65a4de035c3c 361 }
dreschpe 8:65a4de035c3c 362 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 363 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 364 LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 8:65a4de035c3c 365 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 366 LPC_GPDMA->DMACSoftSReq = 0x1; // DMA request
dreschpe 8:65a4de035c3c 367
dreschpe 8:65a4de035c3c 368 do {
dreschpe 8:65a4de035c3c 369 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 370
dreschpe 8:65a4de035c3c 371 } while (pixel > 0);
dreschpe 8:65a4de035c3c 372 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 373 do {
dreschpe 8:65a4de035c3c 374 } while ((0x0010 & LPC_SSP0->SR) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 375 /* disable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 376 LPC_SSP0->DMACR = 0x0;
dreschpe 8:65a4de035c3c 377 } else {
dreschpe 8:65a4de035c3c 378 do {
dreschpe 8:65a4de035c3c 379 } while ((0x0010 & LPC_SSP1->SR) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 380 /* disable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 381 LPC_SSP1->DMACR = 0x0;
dreschpe 8:65a4de035c3c 382 }
dreschpe 8:65a4de035c3c 383 #else // no DMA
dreschpe 8:65a4de035c3c 384 unsigned int i;
dreschpe 8:65a4de035c3c 385 for (i = 0; i < ( width() * height()); i++)
dreschpe 8:65a4de035c3c 386 _spi.write(_background);
dreschpe 8:65a4de035c3c 387 #endif
dreschpe 8:65a4de035c3c 388 _cs = 1;
dreschpe 8:65a4de035c3c 389 }
dreschpe 8:65a4de035c3c 390
dreschpe 8:65a4de035c3c 391
dreschpe 8:65a4de035c3c 392 void SPI_TFT::circle(int x0, int y0, int r, int color)
dreschpe 8:65a4de035c3c 393 {
dreschpe 8:65a4de035c3c 394
dreschpe 8:65a4de035c3c 395 int draw_x0, draw_y0;
dreschpe 8:65a4de035c3c 396 int draw_x1, draw_y1;
dreschpe 8:65a4de035c3c 397 int draw_x2, draw_y2;
dreschpe 8:65a4de035c3c 398 int draw_x3, draw_y3;
dreschpe 8:65a4de035c3c 399 int draw_x4, draw_y4;
dreschpe 8:65a4de035c3c 400 int draw_x5, draw_y5;
dreschpe 8:65a4de035c3c 401 int draw_x6, draw_y6;
dreschpe 8:65a4de035c3c 402 int draw_x7, draw_y7;
dreschpe 8:65a4de035c3c 403 int xx, yy;
dreschpe 8:65a4de035c3c 404 int di;
dreschpe 8:65a4de035c3c 405 //WindowMax();
dreschpe 8:65a4de035c3c 406 if (r == 0) { /* no radius */
dreschpe 8:65a4de035c3c 407 return;
dreschpe 8:65a4de035c3c 408 }
dreschpe 8:65a4de035c3c 409
dreschpe 8:65a4de035c3c 410 draw_x0 = draw_x1 = x0;
dreschpe 8:65a4de035c3c 411 draw_y0 = draw_y1 = y0 + r;
dreschpe 8:65a4de035c3c 412 if (draw_y0 < height()) {
dreschpe 8:65a4de035c3c 413 pixel(draw_x0, draw_y0, color); /* 90 degree */
dreschpe 8:65a4de035c3c 414 }
dreschpe 8:65a4de035c3c 415
dreschpe 8:65a4de035c3c 416 draw_x2 = draw_x3 = x0;
dreschpe 8:65a4de035c3c 417 draw_y2 = draw_y3 = y0 - r;
dreschpe 8:65a4de035c3c 418 if (draw_y2 >= 0) {
dreschpe 8:65a4de035c3c 419 pixel(draw_x2, draw_y2, color); /* 270 degree */
dreschpe 8:65a4de035c3c 420 }
dreschpe 8:65a4de035c3c 421
dreschpe 8:65a4de035c3c 422 draw_x4 = draw_x6 = x0 + r;
dreschpe 8:65a4de035c3c 423 draw_y4 = draw_y6 = y0;
dreschpe 8:65a4de035c3c 424 if (draw_x4 < width()) {
dreschpe 8:65a4de035c3c 425 pixel(draw_x4, draw_y4, color); /* 0 degree */
dreschpe 8:65a4de035c3c 426 }
dreschpe 8:65a4de035c3c 427
dreschpe 8:65a4de035c3c 428 draw_x5 = draw_x7 = x0 - r;
dreschpe 8:65a4de035c3c 429 draw_y5 = draw_y7 = y0;
dreschpe 8:65a4de035c3c 430 if (draw_x5>=0) {
dreschpe 8:65a4de035c3c 431 pixel(draw_x5, draw_y5, color); /* 180 degree */
dreschpe 8:65a4de035c3c 432 }
dreschpe 8:65a4de035c3c 433
dreschpe 8:65a4de035c3c 434 if (r == 1) {
dreschpe 8:65a4de035c3c 435 return;
dreschpe 8:65a4de035c3c 436 }
dreschpe 8:65a4de035c3c 437
dreschpe 8:65a4de035c3c 438 di = 3 - 2*r;
dreschpe 8:65a4de035c3c 439 xx = 0;
dreschpe 8:65a4de035c3c 440 yy = r;
dreschpe 8:65a4de035c3c 441 while (xx < yy) {
dreschpe 8:65a4de035c3c 442
dreschpe 8:65a4de035c3c 443 if (di < 0) {
dreschpe 8:65a4de035c3c 444 di += 4*xx + 6;
dreschpe 8:65a4de035c3c 445 } else {
dreschpe 8:65a4de035c3c 446 di += 4*(xx - yy) + 10;
dreschpe 8:65a4de035c3c 447 yy--;
dreschpe 8:65a4de035c3c 448 draw_y0--;
dreschpe 8:65a4de035c3c 449 draw_y1--;
dreschpe 8:65a4de035c3c 450 draw_y2++;
dreschpe 8:65a4de035c3c 451 draw_y3++;
dreschpe 8:65a4de035c3c 452 draw_x4--;
dreschpe 8:65a4de035c3c 453 draw_x5++;
dreschpe 8:65a4de035c3c 454 draw_x6--;
dreschpe 8:65a4de035c3c 455 draw_x7++;
dreschpe 8:65a4de035c3c 456 }
dreschpe 8:65a4de035c3c 457 xx++;
dreschpe 8:65a4de035c3c 458 draw_x0++;
dreschpe 8:65a4de035c3c 459 draw_x1--;
dreschpe 8:65a4de035c3c 460 draw_x2++;
dreschpe 8:65a4de035c3c 461 draw_x3--;
dreschpe 8:65a4de035c3c 462 draw_y4++;
dreschpe 8:65a4de035c3c 463 draw_y5++;
dreschpe 8:65a4de035c3c 464 draw_y6--;
dreschpe 8:65a4de035c3c 465 draw_y7--;
dreschpe 8:65a4de035c3c 466
dreschpe 8:65a4de035c3c 467 if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
dreschpe 8:65a4de035c3c 468 pixel(draw_x0, draw_y0, color);
dreschpe 8:65a4de035c3c 469 }
dreschpe 8:65a4de035c3c 470
dreschpe 8:65a4de035c3c 471 if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
dreschpe 8:65a4de035c3c 472 pixel(draw_x1, draw_y1, color);
dreschpe 8:65a4de035c3c 473 }
dreschpe 8:65a4de035c3c 474
dreschpe 8:65a4de035c3c 475 if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
dreschpe 8:65a4de035c3c 476 pixel(draw_x2, draw_y2, color);
dreschpe 8:65a4de035c3c 477 }
dreschpe 8:65a4de035c3c 478
dreschpe 8:65a4de035c3c 479 if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
dreschpe 8:65a4de035c3c 480 pixel(draw_x3, draw_y3, color);
dreschpe 8:65a4de035c3c 481 }
dreschpe 8:65a4de035c3c 482
dreschpe 8:65a4de035c3c 483 if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
dreschpe 8:65a4de035c3c 484 pixel(draw_x4, draw_y4, color);
dreschpe 8:65a4de035c3c 485 }
dreschpe 8:65a4de035c3c 486
dreschpe 8:65a4de035c3c 487 if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
dreschpe 8:65a4de035c3c 488 pixel(draw_x5, draw_y5, color);
dreschpe 8:65a4de035c3c 489 }
dreschpe 8:65a4de035c3c 490 if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
dreschpe 8:65a4de035c3c 491 pixel(draw_x6, draw_y6, color);
dreschpe 8:65a4de035c3c 492 }
dreschpe 8:65a4de035c3c 493 if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
dreschpe 8:65a4de035c3c 494 pixel(draw_x7, draw_y7, color);
dreschpe 8:65a4de035c3c 495 }
dreschpe 8:65a4de035c3c 496 }
dreschpe 8:65a4de035c3c 497 return;
dreschpe 8:65a4de035c3c 498 }
dreschpe 8:65a4de035c3c 499
dreschpe 8:65a4de035c3c 500 void SPI_TFT::fillcircle(int x, int y, int r, int color)
dreschpe 8:65a4de035c3c 501 {
dreschpe 8:65a4de035c3c 502 int i;
dreschpe 8:65a4de035c3c 503 for (i = 0; i <= r; i++)
dreschpe 8:65a4de035c3c 504 circle(x,y,i,color);
dreschpe 8:65a4de035c3c 505 }
dreschpe 8:65a4de035c3c 506
dreschpe 8:65a4de035c3c 507
dreschpe 8:65a4de035c3c 508
dreschpe 8:65a4de035c3c 509 void SPI_TFT::hline(int x0, int x1, int y, int color)
dreschpe 8:65a4de035c3c 510 {
dreschpe 8:65a4de035c3c 511 int w,i;
dreschpe 8:65a4de035c3c 512 w = x1 - x0 + 1;
dreschpe 8:65a4de035c3c 513 window(x0,y,w,1);
dreschpe 8:65a4de035c3c 514 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 515 _cs = 0;
dreschpe 8:65a4de035c3c 516 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 517 for (i = 0; i < ( width() * height()); i++)
dreschpe 8:65a4de035c3c 518 #if defined USE_DMA
dreschpe 8:65a4de035c3c 519 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 520 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 521 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 522 #endif
dreschpe 8:65a4de035c3c 523 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 524 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 525 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 526 } else {
dreschpe 8:65a4de035c3c 527 #if defined USE_DMA
dreschpe 8:65a4de035c3c 528 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 529 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 530 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 531 #endif
dreschpe 8:65a4de035c3c 532 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 533 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 534 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 535 }
dreschpe 8:65a4de035c3c 536 #if defined USE_DMA
dreschpe 8:65a4de035c3c 537 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 538 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 539 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 8:65a4de035c3c 540 LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 8:65a4de035c3c 541 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 542 LPC_GPDMA->DMACSoftSReq = 0x1; // start DMA
dreschpe 8:65a4de035c3c 543 do {
dreschpe 8:65a4de035c3c 544 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 545 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 546 do {
dreschpe 8:65a4de035c3c 547 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 548 } else {
dreschpe 8:65a4de035c3c 549 do {
dreschpe 8:65a4de035c3c 550 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 551 }
dreschpe 8:65a4de035c3c 552 #else
dreschpe 8:65a4de035c3c 553 for (i=0; i<w; i++) {
dreschpe 8:65a4de035c3c 554 _spi.write(color);
dreschpe 8:65a4de035c3c 555 }
dreschpe 8:65a4de035c3c 556
dreschpe 8:65a4de035c3c 557 #endif
dreschpe 8:65a4de035c3c 558 _cs = 1;
dreschpe 8:65a4de035c3c 559 WindowMax();
dreschpe 8:65a4de035c3c 560 return;
dreschpe 8:65a4de035c3c 561 }
dreschpe 8:65a4de035c3c 562
dreschpe 8:65a4de035c3c 563 void SPI_TFT::vline(int x, int y0, int y1, int color)
dreschpe 8:65a4de035c3c 564 {
dreschpe 8:65a4de035c3c 565 int h;
dreschpe 8:65a4de035c3c 566 h = y1 - y0 + 1;
dreschpe 8:65a4de035c3c 567 window(x,y0,1,h);
dreschpe 8:65a4de035c3c 568 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 569 _cs = 0;
dreschpe 8:65a4de035c3c 570 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 571 #if defined USE_DMA
dreschpe 8:65a4de035c3c 572 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 573 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 574 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 575 #endif
dreschpe 8:65a4de035c3c 576 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 577 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 578 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 579 } else {
dreschpe 8:65a4de035c3c 580 #if defined USE_DMA
dreschpe 8:65a4de035c3c 581 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 582 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 583 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 584 #endif
dreschpe 8:65a4de035c3c 585 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 586 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 587 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 588 }
dreschpe 8:65a4de035c3c 589 #if defined USE_DMA
dreschpe 8:65a4de035c3c 590 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 591 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 592 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 8:65a4de035c3c 593 LPC_GPDMACH0->DMACCControl = h | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 8:65a4de035c3c 594 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 595 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 8:65a4de035c3c 596 do {
dreschpe 8:65a4de035c3c 597 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 598
dreschpe 8:65a4de035c3c 599 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 600 do {
dreschpe 8:65a4de035c3c 601 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 602 } else {
dreschpe 8:65a4de035c3c 603 do {
dreschpe 8:65a4de035c3c 604 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 605 }
dreschpe 8:65a4de035c3c 606 #else
dreschpe 8:65a4de035c3c 607 for (int y=0; y<h; y++) {
dreschpe 8:65a4de035c3c 608 _spi.write(color);
dreschpe 8:65a4de035c3c 609 }
dreschpe 8:65a4de035c3c 610 #endif
dreschpe 8:65a4de035c3c 611
dreschpe 8:65a4de035c3c 612 _cs = 1;
dreschpe 8:65a4de035c3c 613 WindowMax();
dreschpe 8:65a4de035c3c 614 return;
dreschpe 8:65a4de035c3c 615 }
dreschpe 8:65a4de035c3c 616
dreschpe 8:65a4de035c3c 617
dreschpe 8:65a4de035c3c 618
dreschpe 8:65a4de035c3c 619 void SPI_TFT::line(int x0, int y0, int x1, int y1, int color)
dreschpe 8:65a4de035c3c 620 {
dreschpe 8:65a4de035c3c 621 //WindowMax();
dreschpe 8:65a4de035c3c 622 int dx = 0, dy = 0;
dreschpe 8:65a4de035c3c 623 int dx_sym = 0, dy_sym = 0;
dreschpe 8:65a4de035c3c 624 int dx_x2 = 0, dy_x2 = 0;
dreschpe 8:65a4de035c3c 625 int di = 0;
dreschpe 8:65a4de035c3c 626
dreschpe 8:65a4de035c3c 627 dx = x1-x0;
dreschpe 8:65a4de035c3c 628 dy = y1-y0;
dreschpe 8:65a4de035c3c 629
dreschpe 8:65a4de035c3c 630 if (dx == 0) { /* vertical line */
dreschpe 8:65a4de035c3c 631 if (y1 > y0) vline(x0,y0,y1,color);
dreschpe 8:65a4de035c3c 632 else vline(x0,y1,y0,color);
dreschpe 8:65a4de035c3c 633 return;
dreschpe 8:65a4de035c3c 634 }
dreschpe 8:65a4de035c3c 635
dreschpe 8:65a4de035c3c 636 if (dx > 0) {
dreschpe 8:65a4de035c3c 637 dx_sym = 1;
dreschpe 8:65a4de035c3c 638 } else {
dreschpe 8:65a4de035c3c 639 dx_sym = -1;
dreschpe 8:65a4de035c3c 640 }
dreschpe 8:65a4de035c3c 641 if (dy == 0) { /* horizontal line */
dreschpe 8:65a4de035c3c 642 if (x1 > x0) hline(x0,x1,y0,color);
dreschpe 8:65a4de035c3c 643 else hline(x1,x0,y0,color);
dreschpe 8:65a4de035c3c 644 return;
dreschpe 8:65a4de035c3c 645 }
dreschpe 8:65a4de035c3c 646
dreschpe 8:65a4de035c3c 647 if (dy > 0) {
dreschpe 8:65a4de035c3c 648 dy_sym = 1;
dreschpe 8:65a4de035c3c 649 } else {
dreschpe 8:65a4de035c3c 650 dy_sym = -1;
dreschpe 8:65a4de035c3c 651 }
dreschpe 8:65a4de035c3c 652
dreschpe 8:65a4de035c3c 653 dx = dx_sym*dx;
dreschpe 8:65a4de035c3c 654 dy = dy_sym*dy;
dreschpe 8:65a4de035c3c 655
dreschpe 8:65a4de035c3c 656 dx_x2 = dx*2;
dreschpe 8:65a4de035c3c 657 dy_x2 = dy*2;
dreschpe 8:65a4de035c3c 658
dreschpe 8:65a4de035c3c 659 if (dx >= dy) {
dreschpe 8:65a4de035c3c 660 di = dy_x2 - dx;
dreschpe 8:65a4de035c3c 661 while (x0 != x1) {
dreschpe 8:65a4de035c3c 662
dreschpe 8:65a4de035c3c 663 pixel(x0, y0, color);
dreschpe 8:65a4de035c3c 664 x0 += dx_sym;
dreschpe 8:65a4de035c3c 665 if (di<0) {
dreschpe 8:65a4de035c3c 666 di += dy_x2;
dreschpe 8:65a4de035c3c 667 } else {
dreschpe 8:65a4de035c3c 668 di += dy_x2 - dx_x2;
dreschpe 8:65a4de035c3c 669 y0 += dy_sym;
dreschpe 8:65a4de035c3c 670 }
dreschpe 8:65a4de035c3c 671 }
dreschpe 8:65a4de035c3c 672 pixel(x0, y0, color);
dreschpe 8:65a4de035c3c 673 } else {
dreschpe 8:65a4de035c3c 674 di = dx_x2 - dy;
dreschpe 8:65a4de035c3c 675 while (y0 != y1) {
dreschpe 8:65a4de035c3c 676 pixel(x0, y0, color);
dreschpe 8:65a4de035c3c 677 y0 += dy_sym;
dreschpe 8:65a4de035c3c 678 if (di < 0) {
dreschpe 8:65a4de035c3c 679 di += dx_x2;
dreschpe 8:65a4de035c3c 680 } else {
dreschpe 8:65a4de035c3c 681 di += dx_x2 - dy_x2;
dreschpe 8:65a4de035c3c 682 x0 += dx_sym;
dreschpe 8:65a4de035c3c 683 }
dreschpe 8:65a4de035c3c 684 }
dreschpe 8:65a4de035c3c 685 pixel(x0, y0, color);
dreschpe 8:65a4de035c3c 686 }
dreschpe 8:65a4de035c3c 687 return;
dreschpe 8:65a4de035c3c 688 }
dreschpe 8:65a4de035c3c 689
dreschpe 8:65a4de035c3c 690
dreschpe 8:65a4de035c3c 691 void SPI_TFT::rect(int x0, int y0, int x1, int y1, int color)
dreschpe 8:65a4de035c3c 692 {
dreschpe 8:65a4de035c3c 693
dreschpe 8:65a4de035c3c 694 if (x1 > x0) hline(x0,x1,y0,color);
dreschpe 8:65a4de035c3c 695 else hline(x1,x0,y0,color);
dreschpe 8:65a4de035c3c 696
dreschpe 8:65a4de035c3c 697 if (y1 > y0) vline(x0,y0,y1,color);
dreschpe 8:65a4de035c3c 698 else vline(x0,y1,y0,color);
dreschpe 8:65a4de035c3c 699
dreschpe 8:65a4de035c3c 700 if (x1 > x0) hline(x0,x1,y1,color);
dreschpe 8:65a4de035c3c 701 else hline(x1,x0,y1,color);
dreschpe 8:65a4de035c3c 702
dreschpe 8:65a4de035c3c 703 if (y1 > y0) vline(x1,y0,y1,color);
dreschpe 8:65a4de035c3c 704 else vline(x1,y1,y0,color);
dreschpe 8:65a4de035c3c 705
dreschpe 8:65a4de035c3c 706 return;
dreschpe 8:65a4de035c3c 707 }
dreschpe 8:65a4de035c3c 708
dreschpe 8:65a4de035c3c 709
dreschpe 8:65a4de035c3c 710
dreschpe 8:65a4de035c3c 711 void SPI_TFT::fillrect(int x0, int y0, int x1, int y1, int color)
dreschpe 8:65a4de035c3c 712 {
dreschpe 8:65a4de035c3c 713
dreschpe 8:65a4de035c3c 714 int h = y1 - y0 + 1;
dreschpe 8:65a4de035c3c 715 int w = x1 - x0 + 1;
dreschpe 8:65a4de035c3c 716 int pixel = h * w;
dreschpe 8:65a4de035c3c 717 #if defined USE_DMA
dreschpe 8:65a4de035c3c 718 int dma_count;
dreschpe 8:65a4de035c3c 719 #endif
dreschpe 8:65a4de035c3c 720 window(x0,y0,w,h);
dreschpe 8:65a4de035c3c 721 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 722 _cs = 0;
dreschpe 8:65a4de035c3c 723 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 724 #if defined USE_DMA
dreschpe 8:65a4de035c3c 725 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 726 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 727 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 728 #endif
dreschpe 8:65a4de035c3c 729 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 730 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 731 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 732 } else {
dreschpe 8:65a4de035c3c 733 #if defined USE_DMA
dreschpe 8:65a4de035c3c 734 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 735 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 736 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 737 #endif
dreschpe 8:65a4de035c3c 738 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 739 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 740 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 741 }
dreschpe 8:65a4de035c3c 742 #if defined USE_DMA
dreschpe 8:65a4de035c3c 743 do {
dreschpe 8:65a4de035c3c 744 if (pixel > 4095) {
dreschpe 8:65a4de035c3c 745 dma_count = 4095;
dreschpe 8:65a4de035c3c 746 pixel = pixel - 4095;
dreschpe 8:65a4de035c3c 747 } else {
dreschpe 8:65a4de035c3c 748 dma_count = pixel;
dreschpe 8:65a4de035c3c 749 pixel = 0;
dreschpe 8:65a4de035c3c 750 }
dreschpe 8:65a4de035c3c 751 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 752 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 753 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
dreschpe 8:65a4de035c3c 754 LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
dreschpe 8:65a4de035c3c 755 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 756 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 8:65a4de035c3c 757 do {
dreschpe 8:65a4de035c3c 758 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 759
dreschpe 8:65a4de035c3c 760 } while (pixel > 0);
dreschpe 8:65a4de035c3c 761
dreschpe 8:65a4de035c3c 762 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 763 do {
dreschpe 8:65a4de035c3c 764 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 765 } else {
dreschpe 8:65a4de035c3c 766 do {
dreschpe 8:65a4de035c3c 767 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 768 }
dreschpe 8:65a4de035c3c 769
dreschpe 8:65a4de035c3c 770 #else // no DMA
dreschpe 8:65a4de035c3c 771 for (int p=0; p<pixel; p++) {
dreschpe 8:65a4de035c3c 772 _spi.write(color);
dreschpe 8:65a4de035c3c 773 }
dreschpe 8:65a4de035c3c 774 #endif
dreschpe 8:65a4de035c3c 775
dreschpe 8:65a4de035c3c 776 _cs = 1;
dreschpe 8:65a4de035c3c 777 WindowMax();
dreschpe 8:65a4de035c3c 778 return;
dreschpe 8:65a4de035c3c 779 }
dreschpe 8:65a4de035c3c 780
dreschpe 8:65a4de035c3c 781
dreschpe 8:65a4de035c3c 782 void SPI_TFT::locate(int x, int y)
dreschpe 8:65a4de035c3c 783 {
dreschpe 8:65a4de035c3c 784 char_x = x;
dreschpe 8:65a4de035c3c 785 char_y = y;
dreschpe 8:65a4de035c3c 786 }
dreschpe 8:65a4de035c3c 787
dreschpe 8:65a4de035c3c 788
dreschpe 8:65a4de035c3c 789
dreschpe 8:65a4de035c3c 790 int SPI_TFT::columns()
dreschpe 8:65a4de035c3c 791 {
dreschpe 8:65a4de035c3c 792 return width() / font[1];
dreschpe 8:65a4de035c3c 793 }
dreschpe 8:65a4de035c3c 794
dreschpe 8:65a4de035c3c 795
dreschpe 8:65a4de035c3c 796
dreschpe 8:65a4de035c3c 797 int SPI_TFT::rows()
dreschpe 8:65a4de035c3c 798 {
dreschpe 8:65a4de035c3c 799 return height() / font[2];
dreschpe 8:65a4de035c3c 800 }
dreschpe 8:65a4de035c3c 801
dreschpe 8:65a4de035c3c 802
dreschpe 8:65a4de035c3c 803
dreschpe 8:65a4de035c3c 804 int SPI_TFT::_putc(int value)
dreschpe 8:65a4de035c3c 805 {
dreschpe 8:65a4de035c3c 806 if (value == '\n') { // new line
dreschpe 8:65a4de035c3c 807 char_x = 0;
dreschpe 8:65a4de035c3c 808 char_y = char_y + font[2];
dreschpe 8:65a4de035c3c 809 if (char_y >= height() - font[2]) {
dreschpe 8:65a4de035c3c 810 char_y = 0;
dreschpe 8:65a4de035c3c 811 }
dreschpe 8:65a4de035c3c 812 } else {
dreschpe 8:65a4de035c3c 813 character(char_x, char_y, value);
dreschpe 8:65a4de035c3c 814 }
dreschpe 8:65a4de035c3c 815 return value;
dreschpe 8:65a4de035c3c 816 }
dreschpe 8:65a4de035c3c 817
dreschpe 8:65a4de035c3c 818
dreschpe 8:65a4de035c3c 819
dreschpe 8:65a4de035c3c 820
dreschpe 8:65a4de035c3c 821 void SPI_TFT::character(int x, int y, int c)
dreschpe 8:65a4de035c3c 822 {
dreschpe 8:65a4de035c3c 823 unsigned int hor,vert,offset,bpl,j,i,b,p;
dreschpe 8:65a4de035c3c 824 unsigned char* zeichen;
dreschpe 8:65a4de035c3c 825 unsigned char z,w;
dreschpe 8:65a4de035c3c 826 #if defined USE_DMA
dreschpe 8:65a4de035c3c 827 unsigned int pixel;
dreschpe 8:65a4de035c3c 828 unsigned int dma_count,dma_off;
dreschpe 8:65a4de035c3c 829 uint16_t *buffer;
dreschpe 8:65a4de035c3c 830 #endif
dreschpe 8:65a4de035c3c 831
dreschpe 8:65a4de035c3c 832 if ((c < 31) || (c > 127)) return; // test char range
dreschpe 8:65a4de035c3c 833
dreschpe 8:65a4de035c3c 834 // read font parameter from start of array
dreschpe 8:65a4de035c3c 835 offset = font[0]; // bytes / char
dreschpe 8:65a4de035c3c 836 hor = font[1]; // get hor size of font
dreschpe 8:65a4de035c3c 837 vert = font[2]; // get vert size of font
dreschpe 8:65a4de035c3c 838 bpl = font[3]; // bytes per line
dreschpe 8:65a4de035c3c 839
dreschpe 8:65a4de035c3c 840 if (char_x + hor > width()) {
dreschpe 8:65a4de035c3c 841 char_x = 0;
dreschpe 8:65a4de035c3c 842 char_y = char_y + vert;
dreschpe 8:65a4de035c3c 843 if (char_y >= height() - font[2]) {
dreschpe 8:65a4de035c3c 844 char_y = 0;
dreschpe 8:65a4de035c3c 845 }
dreschpe 8:65a4de035c3c 846 }
dreschpe 8:65a4de035c3c 847 window(char_x, char_y,hor,vert); // char box
dreschpe 8:65a4de035c3c 848 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 849
dreschpe 8:65a4de035c3c 850 #if defined USE_DMA
dreschpe 8:65a4de035c3c 851 pixel = hor * vert; // calculate buffer size
dreschpe 8:65a4de035c3c 852
dreschpe 8:65a4de035c3c 853 buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the 16 bit
dreschpe 8:65a4de035c3c 854 if (buffer == NULL) {
dreschpe 8:65a4de035c3c 855 //led = 1;
dreschpe 8:65a4de035c3c 856 //pc.printf("Malloc error !\n\r");
dreschpe 8:65a4de035c3c 857 return; // error no memory
dreschpe 8:65a4de035c3c 858 }
dreschpe 8:65a4de035c3c 859
dreschpe 8:65a4de035c3c 860 zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
dreschpe 8:65a4de035c3c 861 w = zeichen[0]; // width of actual char
dreschpe 8:65a4de035c3c 862 p = 0;
dreschpe 8:65a4de035c3c 863 // construct the char into the buffer
dreschpe 8:65a4de035c3c 864 for (j=0; j<vert; j++) { // vert line
dreschpe 8:65a4de035c3c 865 for (i=0; i<hor; i++) { // horz line
dreschpe 8:65a4de035c3c 866 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
dreschpe 8:65a4de035c3c 867 b = 1 << (j & 0x07);
dreschpe 8:65a4de035c3c 868 if (( z & b ) == 0x00) {
dreschpe 8:65a4de035c3c 869 buffer[p] = _background;
dreschpe 8:65a4de035c3c 870 } else {
dreschpe 8:65a4de035c3c 871 buffer[p] = _foreground;
dreschpe 8:65a4de035c3c 872 }
dreschpe 8:65a4de035c3c 873 p++;
dreschpe 8:65a4de035c3c 874 }
dreschpe 8:65a4de035c3c 875 }
dreschpe 8:65a4de035c3c 876
dreschpe 8:65a4de035c3c 877 // copy the buffer with DMA SPI to display
dreschpe 8:65a4de035c3c 878 dma_off = 0; // offset for DMA transfer
dreschpe 8:65a4de035c3c 879 _cs = 0;
dreschpe 8:65a4de035c3c 880 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 881 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 882 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 883 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 884 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 885 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 886 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 887 } else {
dreschpe 8:65a4de035c3c 888 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 889 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 890 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 891 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 892 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 893 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 894 }
dreschpe 8:65a4de035c3c 895
dreschpe 8:65a4de035c3c 896 // start DMA
dreschpe 8:65a4de035c3c 897 do {
dreschpe 8:65a4de035c3c 898 if (pixel > 4095) { // this is a giant font !
dreschpe 8:65a4de035c3c 899 dma_count = 4095;
dreschpe 8:65a4de035c3c 900 pixel = pixel - 4095;
dreschpe 8:65a4de035c3c 901 } else {
dreschpe 8:65a4de035c3c 902 dma_count = pixel;
dreschpe 8:65a4de035c3c 903 pixel = 0;
dreschpe 8:65a4de035c3c 904 }
dreschpe 8:65a4de035c3c 905 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 906 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 907 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + dma_off);
dreschpe 8:65a4de035c3c 908 LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
dreschpe 8:65a4de035c3c 909 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 910 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 8:65a4de035c3c 911 do {
dreschpe 8:65a4de035c3c 912 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 913 dma_off = dma_off + dma_count;
dreschpe 8:65a4de035c3c 914 } while (pixel > 0);
dreschpe 8:65a4de035c3c 915
dreschpe 8:65a4de035c3c 916 free ((uint16_t *) buffer);
dreschpe 8:65a4de035c3c 917
dreschpe 8:65a4de035c3c 918 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 919 do {
dreschpe 8:65a4de035c3c 920 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
dreschpe 8:65a4de035c3c 921 /* disable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 922 LPC_SSP0->DMACR = 0x0;
dreschpe 8:65a4de035c3c 923 } else {
dreschpe 8:65a4de035c3c 924 do {
dreschpe 8:65a4de035c3c 925 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
dreschpe 8:65a4de035c3c 926 /* disable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 927 LPC_SSP1->DMACR = 0x0;
dreschpe 8:65a4de035c3c 928 }
dreschpe 8:65a4de035c3c 929
dreschpe 8:65a4de035c3c 930 #else
dreschpe 8:65a4de035c3c 931 _cs = 0;
dreschpe 8:65a4de035c3c 932 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 933 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 934 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 935 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 936 } else {
dreschpe 8:65a4de035c3c 937 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 938 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 939 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 940 }
dreschpe 8:65a4de035c3c 941 zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
dreschpe 8:65a4de035c3c 942 w = zeichen[0]; // width of actual char
dreschpe 8:65a4de035c3c 943 for (j=0; j<vert; j++) { // vert line
dreschpe 8:65a4de035c3c 944 for (i=0; i<hor; i++) { // horz line
dreschpe 8:65a4de035c3c 945 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
dreschpe 8:65a4de035c3c 946 b = 1 << (j & 0x07);
dreschpe 8:65a4de035c3c 947 if (( z & b ) == 0x00) {
dreschpe 8:65a4de035c3c 948 _spi.write(_background);
dreschpe 8:65a4de035c3c 949 } else {
dreschpe 8:65a4de035c3c 950 _spi.write(_foreground);
dreschpe 8:65a4de035c3c 951 }
dreschpe 8:65a4de035c3c 952 }
dreschpe 8:65a4de035c3c 953 }
dreschpe 8:65a4de035c3c 954 #endif
dreschpe 8:65a4de035c3c 955
dreschpe 8:65a4de035c3c 956 _cs = 1;
dreschpe 8:65a4de035c3c 957 WindowMax();
dreschpe 8:65a4de035c3c 958 if ((w + 2) < hor) { // x offset to next char
dreschpe 8:65a4de035c3c 959 char_x += w + 2;
dreschpe 8:65a4de035c3c 960 } else char_x += hor;
dreschpe 8:65a4de035c3c 961
dreschpe 8:65a4de035c3c 962 }
dreschpe 8:65a4de035c3c 963
dreschpe 8:65a4de035c3c 964
dreschpe 8:65a4de035c3c 965 void SPI_TFT::set_font(unsigned char* f)
dreschpe 8:65a4de035c3c 966 {
dreschpe 8:65a4de035c3c 967 font = f;
dreschpe 8:65a4de035c3c 968 }
dreschpe 8:65a4de035c3c 969
dreschpe 8:65a4de035c3c 970
dreschpe 8:65a4de035c3c 971
dreschpe 8:65a4de035c3c 972 void SPI_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
dreschpe 8:65a4de035c3c 973 {
dreschpe 8:65a4de035c3c 974 unsigned int j;
dreschpe 8:65a4de035c3c 975 int padd;
dreschpe 8:65a4de035c3c 976 unsigned short *bitmap_ptr = (unsigned short *)bitmap;
dreschpe 8:65a4de035c3c 977 // the lines are padded to multiple of 4 bytes in a bitmap
dreschpe 8:65a4de035c3c 978 padd = -1;
dreschpe 8:65a4de035c3c 979 do {
dreschpe 8:65a4de035c3c 980 padd ++;
dreschpe 8:65a4de035c3c 981 } while (2*(w + padd)%4 != 0);
dreschpe 8:65a4de035c3c 982 window(x, y, w, h);
dreschpe 8:65a4de035c3c 983 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 984 _cs = 0;
dreschpe 8:65a4de035c3c 985 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 986 #if defined USE_DMA
dreschpe 8:65a4de035c3c 987 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 988 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 989 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 990 #endif
dreschpe 8:65a4de035c3c 991 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 992 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 993 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 994
dreschpe 8:65a4de035c3c 995 } else {
dreschpe 8:65a4de035c3c 996 #if defined USE_DMA
dreschpe 8:65a4de035c3c 997 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 998 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 999 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 1000 #endif
dreschpe 8:65a4de035c3c 1001 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 1002 LPC_SSP1->DR = 0x72; // start Data command
dreschpe 8:65a4de035c3c 1003 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 1004 }
dreschpe 8:65a4de035c3c 1005
dreschpe 8:65a4de035c3c 1006 bitmap_ptr += ((h - 1)* (w + padd));
dreschpe 8:65a4de035c3c 1007 #if defined USE_DMA
dreschpe 8:65a4de035c3c 1008 for (j = 0; j < h; j++) { //Lines
dreschpe 8:65a4de035c3c 1009 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 1010 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 1011 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)bitmap_ptr;
dreschpe 8:65a4de035c3c 1012 LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
dreschpe 8:65a4de035c3c 1013 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 1014 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 8:65a4de035c3c 1015 do {
dreschpe 8:65a4de035c3c 1016 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 1017
dreschpe 8:65a4de035c3c 1018 bitmap_ptr -= w;
dreschpe 8:65a4de035c3c 1019 bitmap_ptr -= padd;
dreschpe 8:65a4de035c3c 1020 }
dreschpe 8:65a4de035c3c 1021 #else
dreschpe 8:65a4de035c3c 1022 unsigned int i;
dreschpe 8:65a4de035c3c 1023 for (j = 0; j < h; j++) { //Lines
dreschpe 8:65a4de035c3c 1024 for (i = 0; i < w; i++) { // copy pixel data to TFT
dreschpe 8:65a4de035c3c 1025 _spi.write(*bitmap_ptr); // one line
dreschpe 8:65a4de035c3c 1026 bitmap_ptr++;
dreschpe 8:65a4de035c3c 1027 }
dreschpe 8:65a4de035c3c 1028 bitmap_ptr -= 2*w;
dreschpe 8:65a4de035c3c 1029 bitmap_ptr -= padd;
dreschpe 8:65a4de035c3c 1030 }
dreschpe 8:65a4de035c3c 1031 #endif
dreschpe 8:65a4de035c3c 1032 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 1033 do {
dreschpe 8:65a4de035c3c 1034 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 1035 } else {
dreschpe 8:65a4de035c3c 1036 do {
dreschpe 8:65a4de035c3c 1037 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 1038 }
dreschpe 8:65a4de035c3c 1039 _cs = 1;
dreschpe 8:65a4de035c3c 1040 WindowMax();
dreschpe 8:65a4de035c3c 1041 }
dreschpe 8:65a4de035c3c 1042
dreschpe 8:65a4de035c3c 1043
dreschpe 8:65a4de035c3c 1044 int SPI_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
dreschpe 8:65a4de035c3c 1045 {
dreschpe 8:65a4de035c3c 1046
dreschpe 8:65a4de035c3c 1047 #define OffsetPixelWidth 18
dreschpe 8:65a4de035c3c 1048 #define OffsetPixelHeigh 22
dreschpe 8:65a4de035c3c 1049 #define OffsetFileSize 34
dreschpe 8:65a4de035c3c 1050 #define OffsetPixData 10
dreschpe 8:65a4de035c3c 1051 #define OffsetBPP 28
dreschpe 8:65a4de035c3c 1052
dreschpe 8:65a4de035c3c 1053 char filename[50];
dreschpe 8:65a4de035c3c 1054 unsigned char BMP_Header[54];
dreschpe 8:65a4de035c3c 1055 unsigned short BPP_t;
dreschpe 8:65a4de035c3c 1056 unsigned int PixelWidth,PixelHeigh,start_data;
dreschpe 8:65a4de035c3c 1057 unsigned int i,off;
dreschpe 8:65a4de035c3c 1058 int padd,j;
dreschpe 8:65a4de035c3c 1059 unsigned short *line;
dreschpe 8:65a4de035c3c 1060
dreschpe 8:65a4de035c3c 1061 // get the filename
dreschpe 8:65a4de035c3c 1062 LocalFileSystem local("local");
dreschpe 8:65a4de035c3c 1063 sprintf(&filename[0],"/local/");
dreschpe 8:65a4de035c3c 1064 i=7;
dreschpe 8:65a4de035c3c 1065 while (*Name_BMP!='\0') {
dreschpe 8:65a4de035c3c 1066 filename[i++]=*Name_BMP++;
dreschpe 8:65a4de035c3c 1067 }
dreschpe 8:65a4de035c3c 1068
dreschpe 8:65a4de035c3c 1069 fprintf(stderr, "filename : %s \n\r",filename);
dreschpe 8:65a4de035c3c 1070
dreschpe 8:65a4de035c3c 1071 FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
dreschpe 8:65a4de035c3c 1072 if (!Image) {
dreschpe 8:65a4de035c3c 1073 return(0); // error file not found !
dreschpe 8:65a4de035c3c 1074 }
dreschpe 8:65a4de035c3c 1075
dreschpe 8:65a4de035c3c 1076 fread(&BMP_Header[0],1,54,Image); // get the BMP Header
dreschpe 8:65a4de035c3c 1077
dreschpe 8:65a4de035c3c 1078 if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
dreschpe 8:65a4de035c3c 1079 fclose(Image);
dreschpe 8:65a4de035c3c 1080 return(-1); // error no BMP file
dreschpe 8:65a4de035c3c 1081 }
dreschpe 8:65a4de035c3c 1082
dreschpe 8:65a4de035c3c 1083 BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
dreschpe 8:65a4de035c3c 1084 if (BPP_t != 0x0010) {
dreschpe 8:65a4de035c3c 1085 fclose(Image);
dreschpe 8:65a4de035c3c 1086 return(-2); // error no 16 bit BMP
dreschpe 8:65a4de035c3c 1087 }
dreschpe 8:65a4de035c3c 1088
dreschpe 8:65a4de035c3c 1089 PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
dreschpe 8:65a4de035c3c 1090 PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
dreschpe 8:65a4de035c3c 1091 if (PixelHeigh > height() + y || PixelWidth > width() + x) {
dreschpe 8:65a4de035c3c 1092 fclose(Image);
dreschpe 8:65a4de035c3c 1093 return(-3); // to big
dreschpe 8:65a4de035c3c 1094 }
dreschpe 8:65a4de035c3c 1095
dreschpe 8:65a4de035c3c 1096 start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
dreschpe 8:65a4de035c3c 1097
dreschpe 8:65a4de035c3c 1098 line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
dreschpe 8:65a4de035c3c 1099 if (line == NULL) {
dreschpe 8:65a4de035c3c 1100 return(-4); // error no memory
dreschpe 8:65a4de035c3c 1101 }
dreschpe 8:65a4de035c3c 1102
dreschpe 8:65a4de035c3c 1103 // the bmp lines are padded to multiple of 4 bytes
dreschpe 8:65a4de035c3c 1104 padd = -1;
dreschpe 8:65a4de035c3c 1105 do {
dreschpe 8:65a4de035c3c 1106 padd ++;
dreschpe 8:65a4de035c3c 1107 } while ((PixelWidth * 2 + padd)%4 != 0);
dreschpe 8:65a4de035c3c 1108
dreschpe 8:65a4de035c3c 1109
dreschpe 8:65a4de035c3c 1110 //fseek(Image, 70 ,SEEK_SET);
dreschpe 8:65a4de035c3c 1111 window(x, y,PixelWidth ,PixelHeigh);
dreschpe 8:65a4de035c3c 1112 wr_cmd(0x22);
dreschpe 8:65a4de035c3c 1113 _cs = 0;
dreschpe 8:65a4de035c3c 1114
dreschpe 8:65a4de035c3c 1115 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 1116 #if defined USE_DMA
dreschpe 8:65a4de035c3c 1117 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
dreschpe 8:65a4de035c3c 1118 /* Enable SSP0 for DMA. */
dreschpe 8:65a4de035c3c 1119 LPC_SSP0->DMACR = 0x2;
dreschpe 8:65a4de035c3c 1120 #endif
dreschpe 8:65a4de035c3c 1121 LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 1122 LPC_SSP0->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 1123 LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 1124
dreschpe 8:65a4de035c3c 1125 } else {
dreschpe 8:65a4de035c3c 1126 #if defined USE_DMA
dreschpe 8:65a4de035c3c 1127 LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
dreschpe 8:65a4de035c3c 1128 /* Enable SSP1 for DMA. */
dreschpe 8:65a4de035c3c 1129 LPC_SSP1->DMACR = 0x2;
dreschpe 8:65a4de035c3c 1130 #endif
dreschpe 8:65a4de035c3c 1131 LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
dreschpe 8:65a4de035c3c 1132 LPC_SSP1->DR = 0x72; // start Data
dreschpe 8:65a4de035c3c 1133 LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
dreschpe 8:65a4de035c3c 1134 }
dreschpe 8:65a4de035c3c 1135 for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
dreschpe 8:65a4de035c3c 1136 off = j * (PixelWidth * 2 + padd) + start_data; // start of line
dreschpe 8:65a4de035c3c 1137 fseek(Image, off ,SEEK_SET);
dreschpe 8:65a4de035c3c 1138 fread(line,1,PixelWidth * 2,Image); // read a line - slow !
dreschpe 8:65a4de035c3c 1139 #if defined USE_DMA
dreschpe 8:65a4de035c3c 1140 LPC_GPDMA->DMACIntTCClear = 0x1;
dreschpe 8:65a4de035c3c 1141 LPC_GPDMA->DMACIntErrClr = 0x1;
dreschpe 8:65a4de035c3c 1142 LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)line;
dreschpe 8:65a4de035c3c 1143 LPC_GPDMACH0->DMACCControl = PixelWidth | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
dreschpe 8:65a4de035c3c 1144 LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
dreschpe 8:65a4de035c3c 1145 LPC_GPDMA->DMACSoftSReq = 0x1;
dreschpe 8:65a4de035c3c 1146 do {
dreschpe 8:65a4de035c3c 1147 } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
dreschpe 8:65a4de035c3c 1148 #else
dreschpe 8:65a4de035c3c 1149 for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
dreschpe 8:65a4de035c3c 1150 _spi.write(line[i]); // one 16 bit pixel
dreschpe 8:65a4de035c3c 1151 }
dreschpe 8:65a4de035c3c 1152 #endif
dreschpe 8:65a4de035c3c 1153 }
dreschpe 8:65a4de035c3c 1154 if (spi_port == 0) { // TFT on SSP0
dreschpe 8:65a4de035c3c 1155 do {
dreschpe 8:65a4de035c3c 1156 } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 1157 } else {
dreschpe 8:65a4de035c3c 1158 do {
dreschpe 8:65a4de035c3c 1159 } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
dreschpe 8:65a4de035c3c 1160 }
dreschpe 8:65a4de035c3c 1161 _cs = 1;
dreschpe 8:65a4de035c3c 1162 free (line);
dreschpe 8:65a4de035c3c 1163 fclose(Image);
dreschpe 8:65a4de035c3c 1164 WindowMax();
dreschpe 8:65a4de035c3c 1165 return(1);
dreschpe 0:de9d1462a835 1166 }