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?
User | Revision | Line number | New 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 | } |