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@2:f30ea1eb3681, 2012-09-11 (annotated)
- Committer:
- dreschpe
- Date:
- Tue Sep 11 20:37:13 2012 +0000
- Revision:
- 2:f30ea1eb3681
- Parent:
- 1:17e12e4e149f
- Child:
- 3:7f1d793b90df
Switch back to io pin CS. The use of automatic SPI CS could make problems with interrupt or RTOS.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dreschpe | 0:de9d1462a835 | 1 | /* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller |
dreschpe | 0:de9d1462a835 | 2 | * Copyright (c) 2011 Peter Drescher - DC2PD |
dreschpe | 0:de9d1462a835 | 3 | * |
dreschpe | 0:de9d1462a835 | 4 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
dreschpe | 0:de9d1462a835 | 5 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
dreschpe | 0:de9d1462a835 | 6 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
dreschpe | 0:de9d1462a835 | 7 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
dreschpe | 0:de9d1462a835 | 8 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
dreschpe | 0:de9d1462a835 | 9 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
dreschpe | 0:de9d1462a835 | 10 | * THE SOFTWARE. |
dreschpe | 0:de9d1462a835 | 11 | */ |
dreschpe | 0:de9d1462a835 | 12 | |
dreschpe | 0:de9d1462a835 | 13 | |
dreschpe | 0:de9d1462a835 | 14 | // fix bmp padding for Bitmap function |
dreschpe | 0:de9d1462a835 | 15 | // speed up pixel |
dreschpe | 0:de9d1462a835 | 16 | // 30.12.11 fix cls |
dreschpe | 0:de9d1462a835 | 17 | // 11.03.12 use DMA to speed up |
dreschpe | 0:de9d1462a835 | 18 | // 15.03.12 use SSEL for TFT CS to enable DMA Register writes |
dreschpe | 0:de9d1462a835 | 19 | // 06.04.12 fix SSEL CS problem |
dreschpe | 0:de9d1462a835 | 20 | // 06.04.12 use direct access to the spi register to speed up the library. |
dreschpe | 1:17e12e4e149f | 21 | // 11.09.12 switch back to using io pin as cs to avoid problems with SSEL CS. |
dreschpe | 2:f30ea1eb3681 | 22 | |
dreschpe | 0:de9d1462a835 | 23 | |
dreschpe | 0:de9d1462a835 | 24 | #include "SPI_TFT.h" |
dreschpe | 0:de9d1462a835 | 25 | #include "mbed.h" |
dreschpe | 0:de9d1462a835 | 26 | |
dreschpe | 0:de9d1462a835 | 27 | |
dreschpe | 0:de9d1462a835 | 28 | #define BPP 16 // Bits per pixel |
dreschpe | 0:de9d1462a835 | 29 | |
dreschpe | 0:de9d1462a835 | 30 | |
dreschpe | 0:de9d1462a835 | 31 | //extern Serial pc; |
dreschpe | 0:de9d1462a835 | 32 | //extern DigitalOut xx; // debug !! |
dreschpe | 0:de9d1462a835 | 33 | |
dreschpe | 0:de9d1462a835 | 34 | SPI_TFT::SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, const char *name) |
dreschpe | 1:17e12e4e149f | 35 | : _spi(mosi, miso, sclk), _cs(cs), _reset(reset),GraphicsDisplay(name) { |
dreschpe | 0:de9d1462a835 | 36 | tft_reset(); |
dreschpe | 0:de9d1462a835 | 37 | orientation = 0; |
dreschpe | 0:de9d1462a835 | 38 | char_x = 0; |
dreschpe | 0:de9d1462a835 | 39 | if (mosi == p11 || mosi == P0_18) spi_port = 0; // we must know the used SPI port to setup the DMA |
dreschpe | 0:de9d1462a835 | 40 | else spi_port = 1; |
dreschpe | 0:de9d1462a835 | 41 | } |
dreschpe | 0:de9d1462a835 | 42 | |
dreschpe | 0:de9d1462a835 | 43 | int SPI_TFT::width() { |
dreschpe | 0:de9d1462a835 | 44 | if (orientation == 0 || orientation == 2) return 240; |
dreschpe | 0:de9d1462a835 | 45 | else return 320; |
dreschpe | 0:de9d1462a835 | 46 | } |
dreschpe | 0:de9d1462a835 | 47 | |
dreschpe | 0:de9d1462a835 | 48 | |
dreschpe | 0:de9d1462a835 | 49 | int SPI_TFT::height() { |
dreschpe | 0:de9d1462a835 | 50 | if (orientation == 0 || orientation == 2) return 320; |
dreschpe | 0:de9d1462a835 | 51 | else return 240; |
dreschpe | 0:de9d1462a835 | 52 | } |
dreschpe | 0:de9d1462a835 | 53 | |
dreschpe | 0:de9d1462a835 | 54 | |
dreschpe | 0:de9d1462a835 | 55 | void SPI_TFT::set_orientation(unsigned int o) { |
dreschpe | 0:de9d1462a835 | 56 | orientation = o; |
dreschpe | 0:de9d1462a835 | 57 | switch (orientation) { |
dreschpe | 0:de9d1462a835 | 58 | case 0: |
dreschpe | 0:de9d1462a835 | 59 | wr_reg(0x16, 0x08); |
dreschpe | 0:de9d1462a835 | 60 | break; |
dreschpe | 0:de9d1462a835 | 61 | case 1: |
dreschpe | 0:de9d1462a835 | 62 | wr_reg(0x16, 0x68); |
dreschpe | 0:de9d1462a835 | 63 | break; |
dreschpe | 0:de9d1462a835 | 64 | case 2: |
dreschpe | 0:de9d1462a835 | 65 | wr_reg(0x16, 0xC8); |
dreschpe | 0:de9d1462a835 | 66 | break; |
dreschpe | 0:de9d1462a835 | 67 | case 3: |
dreschpe | 0:de9d1462a835 | 68 | wr_reg(0x16, 0xA8); |
dreschpe | 0:de9d1462a835 | 69 | break; |
dreschpe | 0:de9d1462a835 | 70 | } |
dreschpe | 0:de9d1462a835 | 71 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 72 | } |
dreschpe | 0:de9d1462a835 | 73 | |
dreschpe | 0:de9d1462a835 | 74 | |
dreschpe | 0:de9d1462a835 | 75 | // write command to tft register |
dreschpe | 0:de9d1462a835 | 76 | |
dreschpe | 0:de9d1462a835 | 77 | void SPI_TFT::wr_cmd(unsigned char cmd) { |
dreschpe | 0:de9d1462a835 | 78 | unsigned short spi_d; |
dreschpe | 0:de9d1462a835 | 79 | spi_d = 0x7000 | cmd ; |
dreschpe | 1:17e12e4e149f | 80 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 81 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 82 | LPC_SSP0->DR = spi_d; |
dreschpe | 1:17e12e4e149f | 83 | // we have to wait for SPI IDLE to set CS back to high |
dreschpe | 0:de9d1462a835 | 84 | do { |
dreschpe | 0:de9d1462a835 | 85 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle |
dreschpe | 0:de9d1462a835 | 86 | } else { |
dreschpe | 0:de9d1462a835 | 87 | LPC_SSP1->DR = spi_d; |
dreschpe | 0:de9d1462a835 | 88 | do { |
dreschpe | 0:de9d1462a835 | 89 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:de9d1462a835 | 90 | } |
dreschpe | 1:17e12e4e149f | 91 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 92 | } |
dreschpe | 0:de9d1462a835 | 93 | |
dreschpe | 0:de9d1462a835 | 94 | |
dreschpe | 0:de9d1462a835 | 95 | |
dreschpe | 0:de9d1462a835 | 96 | void SPI_TFT::wr_dat(unsigned char dat) { |
dreschpe | 0:de9d1462a835 | 97 | unsigned short spi_d; |
dreschpe | 0:de9d1462a835 | 98 | spi_d = 0x7200 | dat; |
dreschpe | 1:17e12e4e149f | 99 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 100 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 101 | LPC_SSP0->DR = spi_d; |
dreschpe | 1:17e12e4e149f | 102 | // we have to wait for SPI IDLE to set CS back to high |
dreschpe | 0:de9d1462a835 | 103 | do { |
dreschpe | 0:de9d1462a835 | 104 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle |
dreschpe | 0:de9d1462a835 | 105 | } else { |
dreschpe | 0:de9d1462a835 | 106 | LPC_SSP1->DR = spi_d; |
dreschpe | 0:de9d1462a835 | 107 | do { |
dreschpe | 0:de9d1462a835 | 108 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:de9d1462a835 | 109 | } |
dreschpe | 1:17e12e4e149f | 110 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 111 | } |
dreschpe | 0:de9d1462a835 | 112 | |
dreschpe | 0:de9d1462a835 | 113 | |
dreschpe | 0:de9d1462a835 | 114 | |
dreschpe | 0:de9d1462a835 | 115 | // the HX8347-D controller do not use the MISO (SDO) Signal. |
dreschpe | 1:17e12e4e149f | 116 | // This is a bug - ? |
dreschpe | 1:17e12e4e149f | 117 | // A read will return 0 at the moment |
dreschpe | 0:de9d1462a835 | 118 | |
dreschpe | 0:de9d1462a835 | 119 | unsigned short SPI_TFT::rd_dat (void) { |
dreschpe | 0:de9d1462a835 | 120 | unsigned short val = 0; |
dreschpe | 0:de9d1462a835 | 121 | |
dreschpe | 1:17e12e4e149f | 122 | //val = _spi.write(0x73ff); /* Dummy read 1 */ |
dreschpe | 1:17e12e4e149f | 123 | //val = _spi.write(0x0000); /* Read D8..D15 */ |
dreschpe | 0:de9d1462a835 | 124 | return (val); |
dreschpe | 0:de9d1462a835 | 125 | } |
dreschpe | 0:de9d1462a835 | 126 | |
dreschpe | 0:de9d1462a835 | 127 | void SPI_TFT::wr_reg (unsigned char reg, unsigned char val) { |
dreschpe | 0:de9d1462a835 | 128 | wr_cmd(reg); |
dreschpe | 0:de9d1462a835 | 129 | wr_dat(val); |
dreschpe | 0:de9d1462a835 | 130 | } |
dreschpe | 0:de9d1462a835 | 131 | |
dreschpe | 0:de9d1462a835 | 132 | unsigned short SPI_TFT::rd_reg (unsigned char reg) { |
dreschpe | 0:de9d1462a835 | 133 | wr_cmd(reg); |
dreschpe | 0:de9d1462a835 | 134 | return(rd_dat()); |
dreschpe | 0:de9d1462a835 | 135 | } |
dreschpe | 0:de9d1462a835 | 136 | |
dreschpe | 0:de9d1462a835 | 137 | void SPI_TFT::tft_reset() { |
dreschpe | 1:17e12e4e149f | 138 | //static unsigned short driverCode; |
dreschpe | 0:de9d1462a835 | 139 | _spi.format(16,3); // 16 bit spi mode 3 |
dreschpe | 0:de9d1462a835 | 140 | _spi.frequency(48000000); // 48 Mhz SPI clock |
dreschpe | 1:17e12e4e149f | 141 | _cs = 1; // cs high |
dreschpe | 0:de9d1462a835 | 142 | _reset = 0; // display reset |
dreschpe | 1:17e12e4e149f | 143 | // |
dreschpe | 1:17e12e4e149f | 144 | // if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 145 | // Set up SSEL0 for CS |
dreschpe | 1:17e12e4e149f | 146 | // LPC_PINCON->PINSEL1 |= (1UL << 1); |
dreschpe | 1:17e12e4e149f | 147 | // } else { |
dreschpe | 1:17e12e4e149f | 148 | // // Set up SSEL1 |
dreschpe | 1:17e12e4e149f | 149 | // LPC_PINCON->PINSEL0 |= (1UL << 13); |
dreschpe | 1:17e12e4e149f | 150 | // } |
dreschpe | 0:de9d1462a835 | 151 | wait_us(50); |
dreschpe | 0:de9d1462a835 | 152 | _reset = 1; // end reset |
dreschpe | 0:de9d1462a835 | 153 | wait_ms(5); |
dreschpe | 0:de9d1462a835 | 154 | |
dreschpe | 0:de9d1462a835 | 155 | /* Start Initial Sequence ----------------------------------------------------*/ |
dreschpe | 0:de9d1462a835 | 156 | wr_reg(0xEA, 0x00); /* Reset Power Control 1 */ |
dreschpe | 0:de9d1462a835 | 157 | wr_reg(0xEB, 0x20); /* Power Control 2 */ |
dreschpe | 0:de9d1462a835 | 158 | wr_reg(0xEC, 0x0C); /* Power Control 3 */ |
dreschpe | 0:de9d1462a835 | 159 | wr_reg(0xED, 0xC4); /* Power Control 4 */ |
dreschpe | 0:de9d1462a835 | 160 | wr_reg(0xE8, 0x40); /* Source OPON_N */ |
dreschpe | 0:de9d1462a835 | 161 | wr_reg(0xE9, 0x38); /* Source OPON_I */ |
dreschpe | 0:de9d1462a835 | 162 | wr_reg(0xF1, 0x01); /* */ |
dreschpe | 0:de9d1462a835 | 163 | wr_reg(0xF2, 0x10); /* */ |
dreschpe | 0:de9d1462a835 | 164 | wr_reg(0x27, 0xA3); /* Display Control 2 */ |
dreschpe | 0:de9d1462a835 | 165 | |
dreschpe | 0:de9d1462a835 | 166 | /* Power On sequence ---------------------------------------------------------*/ |
dreschpe | 0:de9d1462a835 | 167 | wr_reg(0x1B, 0x1B); /* Power Control 2 */ |
dreschpe | 0:de9d1462a835 | 168 | wr_reg(0x1A, 0x01); /* Power Control 1 */ |
dreschpe | 0:de9d1462a835 | 169 | wr_reg(0x24, 0x2F); /* Vcom Control 2 */ |
dreschpe | 0:de9d1462a835 | 170 | wr_reg(0x25, 0x57); /* Vcom Control 3 */ |
dreschpe | 0:de9d1462a835 | 171 | wr_reg(0x23, 0x8D); /* Vcom Control 1 */ |
dreschpe | 0:de9d1462a835 | 172 | |
dreschpe | 0:de9d1462a835 | 173 | /* Gamma settings -----------------------------------------------------------*/ |
dreschpe | 0:de9d1462a835 | 174 | wr_reg(0x40,0x00); // |
dreschpe | 0:de9d1462a835 | 175 | wr_reg(0x41,0x00); // |
dreschpe | 0:de9d1462a835 | 176 | wr_reg(0x42,0x01); // |
dreschpe | 0:de9d1462a835 | 177 | wr_reg(0x43,0x13); // |
dreschpe | 0:de9d1462a835 | 178 | wr_reg(0x44,0x10); // |
dreschpe | 0:de9d1462a835 | 179 | wr_reg(0x45,0x26); // |
dreschpe | 0:de9d1462a835 | 180 | wr_reg(0x46,0x08); // |
dreschpe | 0:de9d1462a835 | 181 | wr_reg(0x47,0x51); // |
dreschpe | 0:de9d1462a835 | 182 | wr_reg(0x48,0x02); // |
dreschpe | 0:de9d1462a835 | 183 | wr_reg(0x49,0x12); // |
dreschpe | 0:de9d1462a835 | 184 | wr_reg(0x4A,0x18); // |
dreschpe | 0:de9d1462a835 | 185 | wr_reg(0x4B,0x19); // |
dreschpe | 0:de9d1462a835 | 186 | wr_reg(0x4C,0x14); // |
dreschpe | 0:de9d1462a835 | 187 | wr_reg(0x50,0x19); // |
dreschpe | 0:de9d1462a835 | 188 | wr_reg(0x51,0x2F); // |
dreschpe | 0:de9d1462a835 | 189 | wr_reg(0x52,0x2C); // |
dreschpe | 0:de9d1462a835 | 190 | wr_reg(0x53,0x3E); // |
dreschpe | 0:de9d1462a835 | 191 | wr_reg(0x54,0x3F); // |
dreschpe | 0:de9d1462a835 | 192 | wr_reg(0x55,0x3F); // |
dreschpe | 0:de9d1462a835 | 193 | wr_reg(0x56,0x2E); // |
dreschpe | 0:de9d1462a835 | 194 | wr_reg(0x57,0x77); // |
dreschpe | 0:de9d1462a835 | 195 | wr_reg(0x58,0x0B); // |
dreschpe | 0:de9d1462a835 | 196 | wr_reg(0x59,0x06); // |
dreschpe | 0:de9d1462a835 | 197 | wr_reg(0x5A,0x07); // |
dreschpe | 0:de9d1462a835 | 198 | wr_reg(0x5B,0x0D); // |
dreschpe | 0:de9d1462a835 | 199 | wr_reg(0x5C,0x1D); // |
dreschpe | 0:de9d1462a835 | 200 | wr_reg(0x5D,0xCC); // |
dreschpe | 0:de9d1462a835 | 201 | |
dreschpe | 0:de9d1462a835 | 202 | /* Power + Osc ---------------------------------------------------------------*/ |
dreschpe | 0:de9d1462a835 | 203 | wr_reg(0x18, 0x0036); /* OSC Control 1 */ |
dreschpe | 0:de9d1462a835 | 204 | wr_reg(0x19, 0x0001); /* OSC Control 2 */ |
dreschpe | 0:de9d1462a835 | 205 | wr_reg(0x01, 0x0000); /* Display Mode Control */ |
dreschpe | 0:de9d1462a835 | 206 | wr_reg(0x1F, 0x0088); /* Power Control 6 */ |
dreschpe | 0:de9d1462a835 | 207 | wait_ms(5); /* Delay 5 ms */ |
dreschpe | 0:de9d1462a835 | 208 | wr_reg(0x1F, 0x0080); /* Power Control 6 */ |
dreschpe | 0:de9d1462a835 | 209 | wait_ms(5); /* Delay 5 ms */ |
dreschpe | 0:de9d1462a835 | 210 | wr_reg(0x1F, 0x0090); /* Power Control 6 */ |
dreschpe | 0:de9d1462a835 | 211 | wait_ms(5); /* Delay 5 ms */ |
dreschpe | 0:de9d1462a835 | 212 | wr_reg(0x1F, 0x00D0); /* Power Control 6 */ |
dreschpe | 0:de9d1462a835 | 213 | wait_ms(5); /* Delay 5 ms */ |
dreschpe | 0:de9d1462a835 | 214 | |
dreschpe | 0:de9d1462a835 | 215 | wr_reg(0x17, 0x0005); /* Colmod 16Bit/Pixel */ |
dreschpe | 0:de9d1462a835 | 216 | |
dreschpe | 0:de9d1462a835 | 217 | wr_reg(0x36, 0x0000); /* Panel Characteristic */ |
dreschpe | 0:de9d1462a835 | 218 | wr_reg(0x28, 0x0038); /* Display Control 3 */ |
dreschpe | 0:de9d1462a835 | 219 | wait_ms(40); |
dreschpe | 0:de9d1462a835 | 220 | wr_reg(0x28, 0x003C); /* Display Control 3 */ |
dreschpe | 0:de9d1462a835 | 221 | switch (orientation) { |
dreschpe | 0:de9d1462a835 | 222 | case 0: |
dreschpe | 0:de9d1462a835 | 223 | wr_reg(0x16, 0x0008); |
dreschpe | 0:de9d1462a835 | 224 | break; |
dreschpe | 0:de9d1462a835 | 225 | case 1: |
dreschpe | 0:de9d1462a835 | 226 | wr_reg(0x16, 0x0068); |
dreschpe | 0:de9d1462a835 | 227 | break; |
dreschpe | 0:de9d1462a835 | 228 | case 2: |
dreschpe | 0:de9d1462a835 | 229 | wr_reg(0x16, 0x00C8); |
dreschpe | 0:de9d1462a835 | 230 | break; |
dreschpe | 0:de9d1462a835 | 231 | case 3: |
dreschpe | 0:de9d1462a835 | 232 | wr_reg(0x16, 0x00A8); |
dreschpe | 0:de9d1462a835 | 233 | break; |
dreschpe | 0:de9d1462a835 | 234 | } |
dreschpe | 0:de9d1462a835 | 235 | |
dreschpe | 0:de9d1462a835 | 236 | // setup DMA channel 0 |
dreschpe | 0:de9d1462a835 | 237 | // Power up the GPDMA. |
dreschpe | 0:de9d1462a835 | 238 | LPC_SC->PCONP |= (1UL << 29); |
dreschpe | 0:de9d1462a835 | 239 | LPC_GPDMA->DMACConfig = 1; // enable DMA controller |
dreschpe | 0:de9d1462a835 | 240 | // Reset the Interrupt status |
dreschpe | 0:de9d1462a835 | 241 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 242 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 243 | LPC_GPDMACH0->DMACCLLI = 0; |
dreschpe | 0:de9d1462a835 | 244 | |
dreschpe | 0:de9d1462a835 | 245 | WindowMax (); |
dreschpe | 0:de9d1462a835 | 246 | } |
dreschpe | 0:de9d1462a835 | 247 | |
dreschpe | 0:de9d1462a835 | 248 | |
dreschpe | 0:de9d1462a835 | 249 | void SPI_TFT::pixel(int x, int y, int color) { |
dreschpe | 0:de9d1462a835 | 250 | unsigned char u,l; |
dreschpe | 0:de9d1462a835 | 251 | wr_reg(0x03, (x >> 0)); |
dreschpe | 0:de9d1462a835 | 252 | wr_reg(0x02, (x >> 8)); |
dreschpe | 0:de9d1462a835 | 253 | wr_reg(0x07, (y >> 0)); |
dreschpe | 0:de9d1462a835 | 254 | wr_reg(0x06, (y >> 8)); |
dreschpe | 0:de9d1462a835 | 255 | wr_cmd(0x22); |
dreschpe | 0:de9d1462a835 | 256 | u = color >> 8; |
dreschpe | 0:de9d1462a835 | 257 | l = color & 0xff; |
dreschpe | 1:17e12e4e149f | 258 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 259 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 260 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 261 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 262 | LPC_SSP0->DR = u; // high byte |
dreschpe | 0:de9d1462a835 | 263 | LPC_SSP0->DR = l; // low byte |
dreschpe | 0:de9d1462a835 | 264 | LPC_SSP0->CR0 |= 0x08UL; // set back to 16 bit |
dreschpe | 1:17e12e4e149f | 265 | // we have to wait for SPI IDLE to set CS back to high |
dreschpe | 0:de9d1462a835 | 266 | do { |
dreschpe | 0:de9d1462a835 | 267 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle |
dreschpe | 0:de9d1462a835 | 268 | } else { |
dreschpe | 0:de9d1462a835 | 269 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 270 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 271 | LPC_SSP1->DR = u; |
dreschpe | 0:de9d1462a835 | 272 | LPC_SSP1->DR = l; |
dreschpe | 0:de9d1462a835 | 273 | LPC_SSP1->CR0 |= 0x08UL; // set back to 16 bit |
dreschpe | 1:17e12e4e149f | 274 | // we have to wait for SPI IDLE to set CS back to high |
dreschpe | 0:de9d1462a835 | 275 | do { |
dreschpe | 0:de9d1462a835 | 276 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:de9d1462a835 | 277 | } |
dreschpe | 1:17e12e4e149f | 278 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 279 | } |
dreschpe | 0:de9d1462a835 | 280 | |
dreschpe | 0:de9d1462a835 | 281 | |
dreschpe | 0:de9d1462a835 | 282 | void SPI_TFT::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h) { |
dreschpe | 0:de9d1462a835 | 283 | wr_reg(0x03, x ); |
dreschpe | 0:de9d1462a835 | 284 | wr_reg(0x02, (x >> 8)); |
dreschpe | 0:de9d1462a835 | 285 | wr_reg(0x05, x+w-1 ); |
dreschpe | 0:de9d1462a835 | 286 | wr_reg(0x04, (x+w-1 >> 8)); |
dreschpe | 0:de9d1462a835 | 287 | wr_reg(0x07, y ); |
dreschpe | 0:de9d1462a835 | 288 | wr_reg(0x06, ( y >> 8)); |
dreschpe | 0:de9d1462a835 | 289 | wr_reg(0x09, ( y+h-1 )); |
dreschpe | 0:de9d1462a835 | 290 | wr_reg(0x08, ( y+h-1 >> 8)); |
dreschpe | 0:de9d1462a835 | 291 | } |
dreschpe | 0:de9d1462a835 | 292 | |
dreschpe | 0:de9d1462a835 | 293 | |
dreschpe | 0:de9d1462a835 | 294 | void SPI_TFT::WindowMax (void) { |
dreschpe | 0:de9d1462a835 | 295 | window (0, 0, width(), height()); |
dreschpe | 0:de9d1462a835 | 296 | } |
dreschpe | 0:de9d1462a835 | 297 | |
dreschpe | 0:de9d1462a835 | 298 | |
dreschpe | 0:de9d1462a835 | 299 | void SPI_TFT::cls (void) { |
dreschpe | 0:de9d1462a835 | 300 | //unsigned int i |
dreschpe | 0:de9d1462a835 | 301 | |
dreschpe | 0:de9d1462a835 | 302 | int pixel = ( width() * height()); |
dreschpe | 0:de9d1462a835 | 303 | int dma_count; |
dreschpe | 0:de9d1462a835 | 304 | int color = _background; |
dreschpe | 0:de9d1462a835 | 305 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 306 | wr_cmd(0x22); |
dreschpe | 0:de9d1462a835 | 307 | |
dreschpe | 0:de9d1462a835 | 308 | // The SSEL signal is held low until the spi FIFO is emty. |
dreschpe | 0:de9d1462a835 | 309 | // We have to lower the SPI clock for the 8 bit start to get the spi running |
dreschpe | 0:de9d1462a835 | 310 | // until the next data word |
dreschpe | 1:17e12e4e149f | 311 | |
dreschpe | 0:de9d1462a835 | 312 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color; |
dreschpe | 0:de9d1462a835 | 313 | |
dreschpe | 1:17e12e4e149f | 314 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 315 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 316 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 317 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 318 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 319 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 320 | LPC_SSP0->DR = 0x72; // start byte |
dreschpe | 0:de9d1462a835 | 321 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 322 | } else { |
dreschpe | 0:de9d1462a835 | 323 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 324 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 325 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 326 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 327 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 328 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 1:17e12e4e149f | 329 | } |
dreschpe | 0:de9d1462a835 | 330 | |
dreschpe | 0:de9d1462a835 | 331 | // start DMA |
dreschpe | 0:de9d1462a835 | 332 | do { |
dreschpe | 0:de9d1462a835 | 333 | if (pixel > 4095) { |
dreschpe | 0:de9d1462a835 | 334 | dma_count = 4095; |
dreschpe | 0:de9d1462a835 | 335 | pixel = pixel - 4095; |
dreschpe | 0:de9d1462a835 | 336 | } else { |
dreschpe | 0:de9d1462a835 | 337 | dma_count = pixel; |
dreschpe | 0:de9d1462a835 | 338 | pixel = 0; |
dreschpe | 0:de9d1462a835 | 339 | } |
dreschpe | 0:de9d1462a835 | 340 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 341 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 342 | LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt |
dreschpe | 0:de9d1462a835 | 343 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 344 | LPC_GPDMA->DMACSoftSReq = 0x1; // DMA request |
dreschpe | 0:de9d1462a835 | 345 | |
dreschpe | 0:de9d1462a835 | 346 | do { |
dreschpe | 0:de9d1462a835 | 347 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 348 | |
dreschpe | 0:de9d1462a835 | 349 | } while (pixel > 0); |
dreschpe | 0:de9d1462a835 | 350 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 351 | do { |
dreschpe | 0:de9d1462a835 | 352 | } while ((0x0010 & LPC_SSP0->SR) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 353 | /* disable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 354 | LPC_SSP0->DMACR = 0x0; |
dreschpe | 0:de9d1462a835 | 355 | } else { |
dreschpe | 0:de9d1462a835 | 356 | do { |
dreschpe | 0:de9d1462a835 | 357 | } while ((0x0010 & LPC_SSP1->SR) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 358 | /* disable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 359 | LPC_SSP1->DMACR = 0x0; |
dreschpe | 0:de9d1462a835 | 360 | } |
dreschpe | 1:17e12e4e149f | 361 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 362 | } |
dreschpe | 0:de9d1462a835 | 363 | |
dreschpe | 0:de9d1462a835 | 364 | |
dreschpe | 0:de9d1462a835 | 365 | void SPI_TFT::circle(int x0, int y0, int r, int color) { |
dreschpe | 0:de9d1462a835 | 366 | |
dreschpe | 0:de9d1462a835 | 367 | int draw_x0, draw_y0; |
dreschpe | 0:de9d1462a835 | 368 | int draw_x1, draw_y1; |
dreschpe | 0:de9d1462a835 | 369 | int draw_x2, draw_y2; |
dreschpe | 0:de9d1462a835 | 370 | int draw_x3, draw_y3; |
dreschpe | 0:de9d1462a835 | 371 | int draw_x4, draw_y4; |
dreschpe | 0:de9d1462a835 | 372 | int draw_x5, draw_y5; |
dreschpe | 0:de9d1462a835 | 373 | int draw_x6, draw_y6; |
dreschpe | 0:de9d1462a835 | 374 | int draw_x7, draw_y7; |
dreschpe | 0:de9d1462a835 | 375 | int xx, yy; |
dreschpe | 0:de9d1462a835 | 376 | int di; |
dreschpe | 0:de9d1462a835 | 377 | //WindowMax(); |
dreschpe | 0:de9d1462a835 | 378 | if (r == 0) { /* no radius */ |
dreschpe | 0:de9d1462a835 | 379 | return; |
dreschpe | 0:de9d1462a835 | 380 | } |
dreschpe | 0:de9d1462a835 | 381 | |
dreschpe | 0:de9d1462a835 | 382 | draw_x0 = draw_x1 = x0; |
dreschpe | 0:de9d1462a835 | 383 | draw_y0 = draw_y1 = y0 + r; |
dreschpe | 0:de9d1462a835 | 384 | if (draw_y0 < height()) { |
dreschpe | 0:de9d1462a835 | 385 | pixel(draw_x0, draw_y0, color); /* 90 degree */ |
dreschpe | 0:de9d1462a835 | 386 | } |
dreschpe | 0:de9d1462a835 | 387 | |
dreschpe | 0:de9d1462a835 | 388 | draw_x2 = draw_x3 = x0; |
dreschpe | 0:de9d1462a835 | 389 | draw_y2 = draw_y3 = y0 - r; |
dreschpe | 0:de9d1462a835 | 390 | if (draw_y2 >= 0) { |
dreschpe | 0:de9d1462a835 | 391 | pixel(draw_x2, draw_y2, color); /* 270 degree */ |
dreschpe | 0:de9d1462a835 | 392 | } |
dreschpe | 0:de9d1462a835 | 393 | |
dreschpe | 0:de9d1462a835 | 394 | draw_x4 = draw_x6 = x0 + r; |
dreschpe | 0:de9d1462a835 | 395 | draw_y4 = draw_y6 = y0; |
dreschpe | 0:de9d1462a835 | 396 | if (draw_x4 < width()) { |
dreschpe | 0:de9d1462a835 | 397 | pixel(draw_x4, draw_y4, color); /* 0 degree */ |
dreschpe | 0:de9d1462a835 | 398 | } |
dreschpe | 0:de9d1462a835 | 399 | |
dreschpe | 0:de9d1462a835 | 400 | draw_x5 = draw_x7 = x0 - r; |
dreschpe | 0:de9d1462a835 | 401 | draw_y5 = draw_y7 = y0; |
dreschpe | 0:de9d1462a835 | 402 | if (draw_x5>=0) { |
dreschpe | 0:de9d1462a835 | 403 | pixel(draw_x5, draw_y5, color); /* 180 degree */ |
dreschpe | 0:de9d1462a835 | 404 | } |
dreschpe | 0:de9d1462a835 | 405 | |
dreschpe | 0:de9d1462a835 | 406 | if (r == 1) { |
dreschpe | 0:de9d1462a835 | 407 | return; |
dreschpe | 0:de9d1462a835 | 408 | } |
dreschpe | 0:de9d1462a835 | 409 | |
dreschpe | 0:de9d1462a835 | 410 | di = 3 - 2*r; |
dreschpe | 0:de9d1462a835 | 411 | xx = 0; |
dreschpe | 0:de9d1462a835 | 412 | yy = r; |
dreschpe | 0:de9d1462a835 | 413 | while (xx < yy) { |
dreschpe | 0:de9d1462a835 | 414 | |
dreschpe | 0:de9d1462a835 | 415 | if (di < 0) { |
dreschpe | 0:de9d1462a835 | 416 | di += 4*xx + 6; |
dreschpe | 0:de9d1462a835 | 417 | } else { |
dreschpe | 0:de9d1462a835 | 418 | di += 4*(xx - yy) + 10; |
dreschpe | 0:de9d1462a835 | 419 | yy--; |
dreschpe | 0:de9d1462a835 | 420 | draw_y0--; |
dreschpe | 0:de9d1462a835 | 421 | draw_y1--; |
dreschpe | 0:de9d1462a835 | 422 | draw_y2++; |
dreschpe | 0:de9d1462a835 | 423 | draw_y3++; |
dreschpe | 0:de9d1462a835 | 424 | draw_x4--; |
dreschpe | 0:de9d1462a835 | 425 | draw_x5++; |
dreschpe | 0:de9d1462a835 | 426 | draw_x6--; |
dreschpe | 0:de9d1462a835 | 427 | draw_x7++; |
dreschpe | 0:de9d1462a835 | 428 | } |
dreschpe | 0:de9d1462a835 | 429 | xx++; |
dreschpe | 0:de9d1462a835 | 430 | draw_x0++; |
dreschpe | 0:de9d1462a835 | 431 | draw_x1--; |
dreschpe | 0:de9d1462a835 | 432 | draw_x2++; |
dreschpe | 0:de9d1462a835 | 433 | draw_x3--; |
dreschpe | 0:de9d1462a835 | 434 | draw_y4++; |
dreschpe | 0:de9d1462a835 | 435 | draw_y5++; |
dreschpe | 0:de9d1462a835 | 436 | draw_y6--; |
dreschpe | 0:de9d1462a835 | 437 | draw_y7--; |
dreschpe | 0:de9d1462a835 | 438 | |
dreschpe | 0:de9d1462a835 | 439 | if ( (draw_x0 <= width()) && (draw_y0>=0) ) { |
dreschpe | 0:de9d1462a835 | 440 | pixel(draw_x0, draw_y0, color); |
dreschpe | 0:de9d1462a835 | 441 | } |
dreschpe | 0:de9d1462a835 | 442 | |
dreschpe | 0:de9d1462a835 | 443 | if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) { |
dreschpe | 0:de9d1462a835 | 444 | pixel(draw_x1, draw_y1, color); |
dreschpe | 0:de9d1462a835 | 445 | } |
dreschpe | 0:de9d1462a835 | 446 | |
dreschpe | 0:de9d1462a835 | 447 | if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) { |
dreschpe | 0:de9d1462a835 | 448 | pixel(draw_x2, draw_y2, color); |
dreschpe | 0:de9d1462a835 | 449 | } |
dreschpe | 0:de9d1462a835 | 450 | |
dreschpe | 0:de9d1462a835 | 451 | if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) { |
dreschpe | 0:de9d1462a835 | 452 | pixel(draw_x3, draw_y3, color); |
dreschpe | 0:de9d1462a835 | 453 | } |
dreschpe | 0:de9d1462a835 | 454 | |
dreschpe | 0:de9d1462a835 | 455 | if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) { |
dreschpe | 0:de9d1462a835 | 456 | pixel(draw_x4, draw_y4, color); |
dreschpe | 0:de9d1462a835 | 457 | } |
dreschpe | 0:de9d1462a835 | 458 | |
dreschpe | 0:de9d1462a835 | 459 | if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) { |
dreschpe | 0:de9d1462a835 | 460 | pixel(draw_x5, draw_y5, color); |
dreschpe | 0:de9d1462a835 | 461 | } |
dreschpe | 0:de9d1462a835 | 462 | if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) { |
dreschpe | 0:de9d1462a835 | 463 | pixel(draw_x6, draw_y6, color); |
dreschpe | 0:de9d1462a835 | 464 | } |
dreschpe | 0:de9d1462a835 | 465 | if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) { |
dreschpe | 0:de9d1462a835 | 466 | pixel(draw_x7, draw_y7, color); |
dreschpe | 0:de9d1462a835 | 467 | } |
dreschpe | 0:de9d1462a835 | 468 | } |
dreschpe | 0:de9d1462a835 | 469 | return; |
dreschpe | 0:de9d1462a835 | 470 | } |
dreschpe | 0:de9d1462a835 | 471 | |
dreschpe | 0:de9d1462a835 | 472 | void SPI_TFT::fillcircle(int x, int y, int r, int color) { |
dreschpe | 0:de9d1462a835 | 473 | int i; |
dreschpe | 0:de9d1462a835 | 474 | for (i = 0; i <= r; i++) |
dreschpe | 0:de9d1462a835 | 475 | circle(x,y,i,color); |
dreschpe | 0:de9d1462a835 | 476 | } |
dreschpe | 0:de9d1462a835 | 477 | |
dreschpe | 0:de9d1462a835 | 478 | |
dreschpe | 0:de9d1462a835 | 479 | |
dreschpe | 0:de9d1462a835 | 480 | void SPI_TFT::hline(int x0, int x1, int y, int color) { |
dreschpe | 0:de9d1462a835 | 481 | int w; |
dreschpe | 0:de9d1462a835 | 482 | w = x1 - x0 + 1; |
dreschpe | 0:de9d1462a835 | 483 | window(x0,y,w,1); |
dreschpe | 0:de9d1462a835 | 484 | wr_cmd(0x22); |
dreschpe | 1:17e12e4e149f | 485 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 486 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 487 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 488 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 489 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 490 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 491 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 492 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 493 | } else { |
dreschpe | 0:de9d1462a835 | 494 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 495 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 496 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 497 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 498 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 499 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 500 | } |
dreschpe | 0:de9d1462a835 | 501 | |
dreschpe | 0:de9d1462a835 | 502 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 503 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 504 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color; |
dreschpe | 0:de9d1462a835 | 505 | LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt |
dreschpe | 0:de9d1462a835 | 506 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 507 | LPC_GPDMA->DMACSoftSReq = 0x1; // start DMA |
dreschpe | 0:de9d1462a835 | 508 | do { |
dreschpe | 0:de9d1462a835 | 509 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 510 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 511 | do { |
dreschpe | 0:de9d1462a835 | 512 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 513 | } else { |
dreschpe | 0:de9d1462a835 | 514 | do { |
dreschpe | 0:de9d1462a835 | 515 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 516 | } |
dreschpe | 1:17e12e4e149f | 517 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 518 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 519 | return; |
dreschpe | 0:de9d1462a835 | 520 | } |
dreschpe | 0:de9d1462a835 | 521 | |
dreschpe | 0:de9d1462a835 | 522 | void SPI_TFT::vline(int x, int y0, int y1, int color) { |
dreschpe | 0:de9d1462a835 | 523 | int h; |
dreschpe | 0:de9d1462a835 | 524 | h = y1 - y0 + 1; |
dreschpe | 0:de9d1462a835 | 525 | window(x,y0,1,h); |
dreschpe | 0:de9d1462a835 | 526 | wr_cmd(0x22); |
dreschpe | 1:17e12e4e149f | 527 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 528 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 529 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 530 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 531 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 532 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 533 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 534 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 1:17e12e4e149f | 535 | } else { |
dreschpe | 0:de9d1462a835 | 536 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 537 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 538 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 539 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 540 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 541 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 542 | } |
dreschpe | 0:de9d1462a835 | 543 | |
dreschpe | 0:de9d1462a835 | 544 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 545 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 546 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color; |
dreschpe | 0:de9d1462a835 | 547 | LPC_GPDMACH0->DMACCControl = h | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt |
dreschpe | 0:de9d1462a835 | 548 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 549 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:de9d1462a835 | 550 | do { |
dreschpe | 0:de9d1462a835 | 551 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 552 | |
dreschpe | 0:de9d1462a835 | 553 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 554 | do { |
dreschpe | 0:de9d1462a835 | 555 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 556 | } else { |
dreschpe | 0:de9d1462a835 | 557 | do { |
dreschpe | 0:de9d1462a835 | 558 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 559 | } |
dreschpe | 1:17e12e4e149f | 560 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 561 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 562 | return; |
dreschpe | 0:de9d1462a835 | 563 | } |
dreschpe | 0:de9d1462a835 | 564 | |
dreschpe | 0:de9d1462a835 | 565 | |
dreschpe | 0:de9d1462a835 | 566 | |
dreschpe | 0:de9d1462a835 | 567 | void SPI_TFT::line(int x0, int y0, int x1, int y1, int color) { |
dreschpe | 0:de9d1462a835 | 568 | //WindowMax(); |
dreschpe | 0:de9d1462a835 | 569 | int dx = 0, dy = 0; |
dreschpe | 0:de9d1462a835 | 570 | int dx_sym = 0, dy_sym = 0; |
dreschpe | 0:de9d1462a835 | 571 | int dx_x2 = 0, dy_x2 = 0; |
dreschpe | 0:de9d1462a835 | 572 | int di = 0; |
dreschpe | 0:de9d1462a835 | 573 | |
dreschpe | 0:de9d1462a835 | 574 | dx = x1-x0; |
dreschpe | 0:de9d1462a835 | 575 | dy = y1-y0; |
dreschpe | 0:de9d1462a835 | 576 | |
dreschpe | 0:de9d1462a835 | 577 | if (dx == 0) { /* vertical line */ |
dreschpe | 0:de9d1462a835 | 578 | if (y1 > y0) vline(x0,y0,y1,color); |
dreschpe | 0:de9d1462a835 | 579 | else vline(x0,y1,y0,color); |
dreschpe | 0:de9d1462a835 | 580 | return; |
dreschpe | 0:de9d1462a835 | 581 | } |
dreschpe | 0:de9d1462a835 | 582 | |
dreschpe | 0:de9d1462a835 | 583 | if (dx > 0) { |
dreschpe | 0:de9d1462a835 | 584 | dx_sym = 1; |
dreschpe | 0:de9d1462a835 | 585 | } else { |
dreschpe | 0:de9d1462a835 | 586 | dx_sym = -1; |
dreschpe | 0:de9d1462a835 | 587 | } |
dreschpe | 0:de9d1462a835 | 588 | if (dy == 0) { /* horizontal line */ |
dreschpe | 0:de9d1462a835 | 589 | if (x1 > x0) hline(x0,x1,y0,color); |
dreschpe | 0:de9d1462a835 | 590 | else hline(x1,x0,y0,color); |
dreschpe | 0:de9d1462a835 | 591 | return; |
dreschpe | 0:de9d1462a835 | 592 | } |
dreschpe | 0:de9d1462a835 | 593 | |
dreschpe | 0:de9d1462a835 | 594 | if (dy > 0) { |
dreschpe | 0:de9d1462a835 | 595 | dy_sym = 1; |
dreschpe | 0:de9d1462a835 | 596 | } else { |
dreschpe | 0:de9d1462a835 | 597 | dy_sym = -1; |
dreschpe | 0:de9d1462a835 | 598 | } |
dreschpe | 0:de9d1462a835 | 599 | |
dreschpe | 0:de9d1462a835 | 600 | dx = dx_sym*dx; |
dreschpe | 0:de9d1462a835 | 601 | dy = dy_sym*dy; |
dreschpe | 0:de9d1462a835 | 602 | |
dreschpe | 0:de9d1462a835 | 603 | dx_x2 = dx*2; |
dreschpe | 0:de9d1462a835 | 604 | dy_x2 = dy*2; |
dreschpe | 0:de9d1462a835 | 605 | |
dreschpe | 0:de9d1462a835 | 606 | if (dx >= dy) { |
dreschpe | 0:de9d1462a835 | 607 | di = dy_x2 - dx; |
dreschpe | 0:de9d1462a835 | 608 | while (x0 != x1) { |
dreschpe | 0:de9d1462a835 | 609 | |
dreschpe | 0:de9d1462a835 | 610 | pixel(x0, y0, color); |
dreschpe | 0:de9d1462a835 | 611 | x0 += dx_sym; |
dreschpe | 0:de9d1462a835 | 612 | if (di<0) { |
dreschpe | 0:de9d1462a835 | 613 | di += dy_x2; |
dreschpe | 0:de9d1462a835 | 614 | } else { |
dreschpe | 0:de9d1462a835 | 615 | di += dy_x2 - dx_x2; |
dreschpe | 0:de9d1462a835 | 616 | y0 += dy_sym; |
dreschpe | 0:de9d1462a835 | 617 | } |
dreschpe | 0:de9d1462a835 | 618 | } |
dreschpe | 0:de9d1462a835 | 619 | pixel(x0, y0, color); |
dreschpe | 0:de9d1462a835 | 620 | } else { |
dreschpe | 0:de9d1462a835 | 621 | di = dx_x2 - dy; |
dreschpe | 0:de9d1462a835 | 622 | while (y0 != y1) { |
dreschpe | 0:de9d1462a835 | 623 | pixel(x0, y0, color); |
dreschpe | 0:de9d1462a835 | 624 | y0 += dy_sym; |
dreschpe | 0:de9d1462a835 | 625 | if (di < 0) { |
dreschpe | 0:de9d1462a835 | 626 | di += dx_x2; |
dreschpe | 0:de9d1462a835 | 627 | } else { |
dreschpe | 0:de9d1462a835 | 628 | di += dx_x2 - dy_x2; |
dreschpe | 0:de9d1462a835 | 629 | x0 += dx_sym; |
dreschpe | 0:de9d1462a835 | 630 | } |
dreschpe | 0:de9d1462a835 | 631 | } |
dreschpe | 0:de9d1462a835 | 632 | pixel(x0, y0, color); |
dreschpe | 0:de9d1462a835 | 633 | } |
dreschpe | 0:de9d1462a835 | 634 | return; |
dreschpe | 0:de9d1462a835 | 635 | } |
dreschpe | 0:de9d1462a835 | 636 | |
dreschpe | 0:de9d1462a835 | 637 | |
dreschpe | 0:de9d1462a835 | 638 | void SPI_TFT::rect(int x0, int y0, int x1, int y1, int color) { |
dreschpe | 0:de9d1462a835 | 639 | |
dreschpe | 0:de9d1462a835 | 640 | if (x1 > x0) hline(x0,x1,y0,color); |
dreschpe | 0:de9d1462a835 | 641 | else hline(x1,x0,y0,color); |
dreschpe | 0:de9d1462a835 | 642 | |
dreschpe | 0:de9d1462a835 | 643 | if (y1 > y0) vline(x0,y0,y1,color); |
dreschpe | 0:de9d1462a835 | 644 | else vline(x0,y1,y0,color); |
dreschpe | 0:de9d1462a835 | 645 | |
dreschpe | 0:de9d1462a835 | 646 | if (x1 > x0) hline(x0,x1,y1,color); |
dreschpe | 0:de9d1462a835 | 647 | else hline(x1,x0,y1,color); |
dreschpe | 0:de9d1462a835 | 648 | |
dreschpe | 0:de9d1462a835 | 649 | if (y1 > y0) vline(x1,y0,y1,color); |
dreschpe | 0:de9d1462a835 | 650 | else vline(x1,y1,y0,color); |
dreschpe | 0:de9d1462a835 | 651 | |
dreschpe | 0:de9d1462a835 | 652 | return; |
dreschpe | 0:de9d1462a835 | 653 | } |
dreschpe | 0:de9d1462a835 | 654 | |
dreschpe | 0:de9d1462a835 | 655 | |
dreschpe | 0:de9d1462a835 | 656 | |
dreschpe | 0:de9d1462a835 | 657 | void SPI_TFT::fillrect(int x0, int y0, int x1, int y1, int color) { |
dreschpe | 0:de9d1462a835 | 658 | |
dreschpe | 0:de9d1462a835 | 659 | int h = y1 - y0 + 1; |
dreschpe | 0:de9d1462a835 | 660 | int w = x1 - x0 + 1; |
dreschpe | 0:de9d1462a835 | 661 | int pixel = h * w; |
dreschpe | 0:de9d1462a835 | 662 | int dma_count; |
dreschpe | 0:de9d1462a835 | 663 | window(x0,y0,w,h); |
dreschpe | 0:de9d1462a835 | 664 | wr_cmd(0x22); |
dreschpe | 1:17e12e4e149f | 665 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 666 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 667 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 668 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 669 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 670 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 671 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 672 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 1:17e12e4e149f | 673 | } else { |
dreschpe | 0:de9d1462a835 | 674 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 675 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 676 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 677 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 678 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 679 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 680 | } |
dreschpe | 0:de9d1462a835 | 681 | |
dreschpe | 0:de9d1462a835 | 682 | do { |
dreschpe | 0:de9d1462a835 | 683 | if (pixel > 4095) { |
dreschpe | 0:de9d1462a835 | 684 | dma_count = 4095; |
dreschpe | 0:de9d1462a835 | 685 | pixel = pixel - 4095; |
dreschpe | 0:de9d1462a835 | 686 | } else { |
dreschpe | 0:de9d1462a835 | 687 | dma_count = pixel; |
dreschpe | 0:de9d1462a835 | 688 | pixel = 0; |
dreschpe | 0:de9d1462a835 | 689 | } |
dreschpe | 0:de9d1462a835 | 690 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 691 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 692 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color; |
dreschpe | 0:de9d1462a835 | 693 | LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt |
dreschpe | 0:de9d1462a835 | 694 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 695 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:de9d1462a835 | 696 | do { |
dreschpe | 0:de9d1462a835 | 697 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 698 | |
dreschpe | 0:de9d1462a835 | 699 | } while (pixel > 0); |
dreschpe | 0:de9d1462a835 | 700 | |
dreschpe | 0:de9d1462a835 | 701 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 702 | do { |
dreschpe | 0:de9d1462a835 | 703 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 704 | } else { |
dreschpe | 0:de9d1462a835 | 705 | do { |
dreschpe | 0:de9d1462a835 | 706 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 707 | } |
dreschpe | 1:17e12e4e149f | 708 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 709 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 710 | return; |
dreschpe | 0:de9d1462a835 | 711 | } |
dreschpe | 0:de9d1462a835 | 712 | |
dreschpe | 0:de9d1462a835 | 713 | |
dreschpe | 0:de9d1462a835 | 714 | void SPI_TFT::locate(int x, int y) { |
dreschpe | 0:de9d1462a835 | 715 | char_x = x; |
dreschpe | 0:de9d1462a835 | 716 | char_y = y; |
dreschpe | 0:de9d1462a835 | 717 | } |
dreschpe | 0:de9d1462a835 | 718 | |
dreschpe | 0:de9d1462a835 | 719 | |
dreschpe | 0:de9d1462a835 | 720 | |
dreschpe | 0:de9d1462a835 | 721 | int SPI_TFT::columns() { |
dreschpe | 0:de9d1462a835 | 722 | return width() / font[1]; |
dreschpe | 0:de9d1462a835 | 723 | } |
dreschpe | 0:de9d1462a835 | 724 | |
dreschpe | 0:de9d1462a835 | 725 | |
dreschpe | 0:de9d1462a835 | 726 | |
dreschpe | 0:de9d1462a835 | 727 | int SPI_TFT::rows() { |
dreschpe | 0:de9d1462a835 | 728 | return height() / font[2]; |
dreschpe | 0:de9d1462a835 | 729 | } |
dreschpe | 0:de9d1462a835 | 730 | |
dreschpe | 0:de9d1462a835 | 731 | |
dreschpe | 0:de9d1462a835 | 732 | |
dreschpe | 0:de9d1462a835 | 733 | int SPI_TFT::_putc(int value) { |
dreschpe | 0:de9d1462a835 | 734 | if (value == '\n') { // new line |
dreschpe | 0:de9d1462a835 | 735 | char_x = 0; |
dreschpe | 0:de9d1462a835 | 736 | char_y = char_y + font[2]; |
dreschpe | 0:de9d1462a835 | 737 | if (char_y >= height() - font[2]) { |
dreschpe | 0:de9d1462a835 | 738 | char_y = 0; |
dreschpe | 0:de9d1462a835 | 739 | } |
dreschpe | 0:de9d1462a835 | 740 | } else { |
dreschpe | 0:de9d1462a835 | 741 | character(char_x, char_y, value); |
dreschpe | 0:de9d1462a835 | 742 | } |
dreschpe | 0:de9d1462a835 | 743 | return value; |
dreschpe | 0:de9d1462a835 | 744 | } |
dreschpe | 0:de9d1462a835 | 745 | |
dreschpe | 0:de9d1462a835 | 746 | |
dreschpe | 0:de9d1462a835 | 747 | |
dreschpe | 0:de9d1462a835 | 748 | |
dreschpe | 0:de9d1462a835 | 749 | void SPI_TFT::character(int x, int y, int c) { |
dreschpe | 0:de9d1462a835 | 750 | unsigned int hor,vert,offset,bpl,j,i,b,p; |
dreschpe | 0:de9d1462a835 | 751 | unsigned char* zeichen; |
dreschpe | 0:de9d1462a835 | 752 | unsigned char z,w; |
dreschpe | 0:de9d1462a835 | 753 | unsigned int pixel; |
dreschpe | 0:de9d1462a835 | 754 | unsigned int dma_count,dma_off; |
dreschpe | 0:de9d1462a835 | 755 | uint16_t *buffer; |
dreschpe | 0:de9d1462a835 | 756 | |
dreschpe | 0:de9d1462a835 | 757 | if ((c < 31) || (c > 127)) return; // test char range |
dreschpe | 0:de9d1462a835 | 758 | |
dreschpe | 0:de9d1462a835 | 759 | // read font parameter from start of array |
dreschpe | 0:de9d1462a835 | 760 | offset = font[0]; // bytes / char |
dreschpe | 0:de9d1462a835 | 761 | hor = font[1]; // get hor size of font |
dreschpe | 0:de9d1462a835 | 762 | vert = font[2]; // get vert size of font |
dreschpe | 0:de9d1462a835 | 763 | bpl = font[3]; // bytes per line |
dreschpe | 0:de9d1462a835 | 764 | |
dreschpe | 0:de9d1462a835 | 765 | if (char_x + hor > width()) { |
dreschpe | 0:de9d1462a835 | 766 | char_x = 0; |
dreschpe | 0:de9d1462a835 | 767 | char_y = char_y + vert; |
dreschpe | 0:de9d1462a835 | 768 | if (char_y >= height() - font[2]) { |
dreschpe | 0:de9d1462a835 | 769 | char_y = 0; |
dreschpe | 0:de9d1462a835 | 770 | } |
dreschpe | 0:de9d1462a835 | 771 | } |
dreschpe | 0:de9d1462a835 | 772 | window(char_x, char_y,hor,vert); // char box |
dreschpe | 0:de9d1462a835 | 773 | wr_cmd(0x22); |
dreschpe | 0:de9d1462a835 | 774 | |
dreschpe | 0:de9d1462a835 | 775 | pixel = hor * vert; // calculate buffer size |
dreschpe | 0:de9d1462a835 | 776 | |
dreschpe | 0:de9d1462a835 | 777 | buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the 16 bit |
dreschpe | 0:de9d1462a835 | 778 | if (buffer == NULL) { |
dreschpe | 0:de9d1462a835 | 779 | //led = 1; |
dreschpe | 0:de9d1462a835 | 780 | //pc.printf("Malloc error !\n\r"); |
dreschpe | 0:de9d1462a835 | 781 | return; // error no memory |
dreschpe | 0:de9d1462a835 | 782 | } |
dreschpe | 0:de9d1462a835 | 783 | |
dreschpe | 0:de9d1462a835 | 784 | zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap |
dreschpe | 0:de9d1462a835 | 785 | w = zeichen[0]; // width of actual char |
dreschpe | 0:de9d1462a835 | 786 | p = 0; |
dreschpe | 0:de9d1462a835 | 787 | // construct the char into the buffer |
dreschpe | 0:de9d1462a835 | 788 | for (j=0; j<vert; j++) { // vert line |
dreschpe | 0:de9d1462a835 | 789 | for (i=0; i<hor; i++) { // horz line |
dreschpe | 0:de9d1462a835 | 790 | z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; |
dreschpe | 0:de9d1462a835 | 791 | b = 1 << (j & 0x07); |
dreschpe | 0:de9d1462a835 | 792 | if (( z & b ) == 0x00) { |
dreschpe | 0:de9d1462a835 | 793 | buffer[p] = _background; |
dreschpe | 0:de9d1462a835 | 794 | } else { |
dreschpe | 0:de9d1462a835 | 795 | buffer[p] = _foreground; |
dreschpe | 0:de9d1462a835 | 796 | } |
dreschpe | 0:de9d1462a835 | 797 | p++; |
dreschpe | 0:de9d1462a835 | 798 | } |
dreschpe | 0:de9d1462a835 | 799 | } |
dreschpe | 0:de9d1462a835 | 800 | |
dreschpe | 0:de9d1462a835 | 801 | |
dreschpe | 0:de9d1462a835 | 802 | // copy the buffer with DMA SPI to display |
dreschpe | 0:de9d1462a835 | 803 | dma_off = 0; // offset for DMA transfer |
dreschpe | 1:17e12e4e149f | 804 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 805 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 806 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 807 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 808 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 809 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 810 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 811 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 812 | } else { |
dreschpe | 0:de9d1462a835 | 813 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 814 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 815 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 816 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 817 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 818 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 819 | } |
dreschpe | 0:de9d1462a835 | 820 | |
dreschpe | 0:de9d1462a835 | 821 | // start DMA |
dreschpe | 0:de9d1462a835 | 822 | do { |
dreschpe | 0:de9d1462a835 | 823 | if (pixel > 4095) { // this is a giant font ! |
dreschpe | 0:de9d1462a835 | 824 | dma_count = 4095; |
dreschpe | 0:de9d1462a835 | 825 | pixel = pixel - 4095; |
dreschpe | 0:de9d1462a835 | 826 | } else { |
dreschpe | 0:de9d1462a835 | 827 | dma_count = pixel; |
dreschpe | 0:de9d1462a835 | 828 | pixel = 0; |
dreschpe | 0:de9d1462a835 | 829 | } |
dreschpe | 0:de9d1462a835 | 830 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 831 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 832 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + dma_off); |
dreschpe | 0:de9d1462a835 | 833 | LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt |
dreschpe | 0:de9d1462a835 | 834 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 835 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:de9d1462a835 | 836 | do { |
dreschpe | 0:de9d1462a835 | 837 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 838 | dma_off = dma_off + dma_count; |
dreschpe | 0:de9d1462a835 | 839 | } while (pixel > 0); |
dreschpe | 0:de9d1462a835 | 840 | |
dreschpe | 0:de9d1462a835 | 841 | free ((uint16_t *) buffer); |
dreschpe | 0:de9d1462a835 | 842 | |
dreschpe | 0:de9d1462a835 | 843 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 844 | do { |
dreschpe | 0:de9d1462a835 | 845 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle |
dreschpe | 0:de9d1462a835 | 846 | /* disable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 847 | LPC_SSP0->DMACR = 0x0; |
dreschpe | 0:de9d1462a835 | 848 | } else { |
dreschpe | 0:de9d1462a835 | 849 | do { |
dreschpe | 0:de9d1462a835 | 850 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:de9d1462a835 | 851 | /* disable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 852 | LPC_SSP1->DMACR = 0x0; |
dreschpe | 0:de9d1462a835 | 853 | } |
dreschpe | 1:17e12e4e149f | 854 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 855 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 856 | if ((w + 2) < hor) { // x offset to next char |
dreschpe | 0:de9d1462a835 | 857 | char_x += w + 2; |
dreschpe | 0:de9d1462a835 | 858 | } else char_x += hor; |
dreschpe | 0:de9d1462a835 | 859 | |
dreschpe | 0:de9d1462a835 | 860 | } |
dreschpe | 0:de9d1462a835 | 861 | |
dreschpe | 0:de9d1462a835 | 862 | |
dreschpe | 0:de9d1462a835 | 863 | void SPI_TFT::set_font(unsigned char* f) { |
dreschpe | 0:de9d1462a835 | 864 | font = f; |
dreschpe | 0:de9d1462a835 | 865 | } |
dreschpe | 0:de9d1462a835 | 866 | |
dreschpe | 0:de9d1462a835 | 867 | |
dreschpe | 0:de9d1462a835 | 868 | |
dreschpe | 0:de9d1462a835 | 869 | void SPI_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap) { |
dreschpe | 0:de9d1462a835 | 870 | unsigned int j; |
dreschpe | 0:de9d1462a835 | 871 | int padd; |
dreschpe | 0:de9d1462a835 | 872 | unsigned short *bitmap_ptr = (unsigned short *)bitmap; |
dreschpe | 0:de9d1462a835 | 873 | // the lines are padded to multiple of 4 bytes in a bitmap |
dreschpe | 0:de9d1462a835 | 874 | padd = -1; |
dreschpe | 0:de9d1462a835 | 875 | do { |
dreschpe | 0:de9d1462a835 | 876 | padd ++; |
dreschpe | 0:de9d1462a835 | 877 | } while (2*(w + padd)%4 != 0); |
dreschpe | 0:de9d1462a835 | 878 | window(x, y, w, h); |
dreschpe | 0:de9d1462a835 | 879 | wr_cmd(0x22); |
dreschpe | 1:17e12e4e149f | 880 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 881 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 882 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 883 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 884 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 885 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 886 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 887 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 888 | } else { |
dreschpe | 0:de9d1462a835 | 889 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 890 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 891 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 892 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 893 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 894 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 0:de9d1462a835 | 895 | } |
dreschpe | 0:de9d1462a835 | 896 | bitmap_ptr += ((h - 1)* (w + padd)); |
dreschpe | 0:de9d1462a835 | 897 | for (j = 0; j < h; j++) { //Lines |
dreschpe | 0:de9d1462a835 | 898 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 899 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 900 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)bitmap_ptr; |
dreschpe | 0:de9d1462a835 | 901 | LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt |
dreschpe | 0:de9d1462a835 | 902 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 903 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:de9d1462a835 | 904 | do { |
dreschpe | 0:de9d1462a835 | 905 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 906 | |
dreschpe | 0:de9d1462a835 | 907 | bitmap_ptr -= w; |
dreschpe | 0:de9d1462a835 | 908 | bitmap_ptr -= padd; |
dreschpe | 0:de9d1462a835 | 909 | } |
dreschpe | 0:de9d1462a835 | 910 | |
dreschpe | 0:de9d1462a835 | 911 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 912 | do { |
dreschpe | 0:de9d1462a835 | 913 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 914 | } else { |
dreschpe | 0:de9d1462a835 | 915 | do { |
dreschpe | 0:de9d1462a835 | 916 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 917 | } |
dreschpe | 1:17e12e4e149f | 918 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 919 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 920 | } |
dreschpe | 0:de9d1462a835 | 921 | |
dreschpe | 0:de9d1462a835 | 922 | |
dreschpe | 0:de9d1462a835 | 923 | int SPI_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP) { |
dreschpe | 0:de9d1462a835 | 924 | |
dreschpe | 0:de9d1462a835 | 925 | #define OffsetPixelWidth 18 |
dreschpe | 0:de9d1462a835 | 926 | #define OffsetPixelHeigh 22 |
dreschpe | 0:de9d1462a835 | 927 | #define OffsetFileSize 34 |
dreschpe | 0:de9d1462a835 | 928 | #define OffsetPixData 10 |
dreschpe | 0:de9d1462a835 | 929 | #define OffsetBPP 28 |
dreschpe | 0:de9d1462a835 | 930 | |
dreschpe | 0:de9d1462a835 | 931 | char filename[50]; |
dreschpe | 0:de9d1462a835 | 932 | unsigned char BMP_Header[54]; |
dreschpe | 0:de9d1462a835 | 933 | unsigned short BPP_t; |
dreschpe | 0:de9d1462a835 | 934 | unsigned int PixelWidth,PixelHeigh,start_data; |
dreschpe | 0:de9d1462a835 | 935 | unsigned int i,off; |
dreschpe | 0:de9d1462a835 | 936 | int padd,j; |
dreschpe | 0:de9d1462a835 | 937 | unsigned short *line; |
dreschpe | 0:de9d1462a835 | 938 | |
dreschpe | 0:de9d1462a835 | 939 | // get the filename |
dreschpe | 0:de9d1462a835 | 940 | LocalFileSystem local("local"); |
dreschpe | 0:de9d1462a835 | 941 | sprintf(&filename[0],"/local/"); |
dreschpe | 0:de9d1462a835 | 942 | i=7; |
dreschpe | 0:de9d1462a835 | 943 | while (*Name_BMP!='\0') { |
dreschpe | 0:de9d1462a835 | 944 | filename[i++]=*Name_BMP++; |
dreschpe | 0:de9d1462a835 | 945 | } |
dreschpe | 0:de9d1462a835 | 946 | |
dreschpe | 0:de9d1462a835 | 947 | fprintf(stderr, "filename : %s \n\r",filename); |
dreschpe | 0:de9d1462a835 | 948 | |
dreschpe | 0:de9d1462a835 | 949 | FILE *Image = fopen((const char *)&filename[0], "r"); // open the bmp file |
dreschpe | 0:de9d1462a835 | 950 | if (!Image) { |
dreschpe | 0:de9d1462a835 | 951 | return(0); // error file not found ! |
dreschpe | 0:de9d1462a835 | 952 | } |
dreschpe | 0:de9d1462a835 | 953 | |
dreschpe | 0:de9d1462a835 | 954 | fread(&BMP_Header[0],1,54,Image); // get the BMP Header |
dreschpe | 0:de9d1462a835 | 955 | |
dreschpe | 0:de9d1462a835 | 956 | if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte |
dreschpe | 0:de9d1462a835 | 957 | fclose(Image); |
dreschpe | 0:de9d1462a835 | 958 | return(-1); // error no BMP file |
dreschpe | 0:de9d1462a835 | 959 | } |
dreschpe | 0:de9d1462a835 | 960 | |
dreschpe | 0:de9d1462a835 | 961 | BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8); |
dreschpe | 0:de9d1462a835 | 962 | if (BPP_t != 0x0010) { |
dreschpe | 0:de9d1462a835 | 963 | fclose(Image); |
dreschpe | 0:de9d1462a835 | 964 | return(-2); // error no 16 bit BMP |
dreschpe | 0:de9d1462a835 | 965 | } |
dreschpe | 0:de9d1462a835 | 966 | |
dreschpe | 0:de9d1462a835 | 967 | PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24); |
dreschpe | 0:de9d1462a835 | 968 | PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24); |
dreschpe | 0:de9d1462a835 | 969 | if (PixelHeigh > height() + y || PixelWidth > width() + x) { |
dreschpe | 0:de9d1462a835 | 970 | fclose(Image); |
dreschpe | 0:de9d1462a835 | 971 | return(-3); // to big |
dreschpe | 0:de9d1462a835 | 972 | } |
dreschpe | 0:de9d1462a835 | 973 | |
dreschpe | 0:de9d1462a835 | 974 | start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24); |
dreschpe | 0:de9d1462a835 | 975 | |
dreschpe | 0:de9d1462a835 | 976 | line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line |
dreschpe | 0:de9d1462a835 | 977 | if (line == NULL) { |
dreschpe | 0:de9d1462a835 | 978 | return(-4); // error no memory |
dreschpe | 0:de9d1462a835 | 979 | } |
dreschpe | 0:de9d1462a835 | 980 | |
dreschpe | 0:de9d1462a835 | 981 | // the bmp lines are padded to multiple of 4 bytes |
dreschpe | 0:de9d1462a835 | 982 | padd = -1; |
dreschpe | 0:de9d1462a835 | 983 | do { |
dreschpe | 0:de9d1462a835 | 984 | padd ++; |
dreschpe | 0:de9d1462a835 | 985 | } while ((PixelWidth * 2 + padd)%4 != 0); |
dreschpe | 0:de9d1462a835 | 986 | |
dreschpe | 0:de9d1462a835 | 987 | window(x, y,PixelWidth+1,PixelHeigh); |
dreschpe | 0:de9d1462a835 | 988 | wr_cmd(0x22); |
dreschpe | 1:17e12e4e149f | 989 | _cs = 0; |
dreschpe | 0:de9d1462a835 | 990 | for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up |
dreschpe | 0:de9d1462a835 | 991 | off = j * (PixelWidth * 2 + padd) + start_data; // start of line |
dreschpe | 0:de9d1462a835 | 992 | fseek(Image, off ,SEEK_SET); |
dreschpe | 0:de9d1462a835 | 993 | fread(line,1,PixelWidth * 2,Image); // read a line - slow ! |
dreschpe | 0:de9d1462a835 | 994 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 995 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0 |
dreschpe | 0:de9d1462a835 | 996 | /* Enable SSP0 for DMA. */ |
dreschpe | 0:de9d1462a835 | 997 | LPC_SSP0->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 998 | LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 999 | LPC_SSP0->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 1000 | LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 1:17e12e4e149f | 1001 | } else { |
dreschpe | 0:de9d1462a835 | 1002 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:de9d1462a835 | 1003 | /* Enable SSP1 for DMA. */ |
dreschpe | 0:de9d1462a835 | 1004 | LPC_SSP1->DMACR = 0x2; |
dreschpe | 0:de9d1462a835 | 1005 | LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit |
dreschpe | 0:de9d1462a835 | 1006 | LPC_SSP1->DR = 0x72; // start Data |
dreschpe | 0:de9d1462a835 | 1007 | LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit |
dreschpe | 1:17e12e4e149f | 1008 | } |
dreschpe | 0:de9d1462a835 | 1009 | |
dreschpe | 0:de9d1462a835 | 1010 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:de9d1462a835 | 1011 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:de9d1462a835 | 1012 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)line; |
dreschpe | 0:de9d1462a835 | 1013 | LPC_GPDMACH0->DMACCControl = PixelWidth | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt |
dreschpe | 0:de9d1462a835 | 1014 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P ; |
dreschpe | 0:de9d1462a835 | 1015 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:de9d1462a835 | 1016 | do { |
dreschpe | 0:de9d1462a835 | 1017 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:de9d1462a835 | 1018 | |
dreschpe | 0:de9d1462a835 | 1019 | } |
dreschpe | 0:de9d1462a835 | 1020 | |
dreschpe | 0:de9d1462a835 | 1021 | if (spi_port == 0) { // TFT on SSP0 |
dreschpe | 0:de9d1462a835 | 1022 | do { |
dreschpe | 0:de9d1462a835 | 1023 | } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 1024 | } else { |
dreschpe | 0:de9d1462a835 | 1025 | do { |
dreschpe | 0:de9d1462a835 | 1026 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty |
dreschpe | 0:de9d1462a835 | 1027 | } |
dreschpe | 1:17e12e4e149f | 1028 | _cs = 1; |
dreschpe | 0:de9d1462a835 | 1029 | free (line); |
dreschpe | 0:de9d1462a835 | 1030 | fclose(Image); |
dreschpe | 0:de9d1462a835 | 1031 | WindowMax(); |
dreschpe | 0:de9d1462a835 | 1032 | return(1); |
dreschpe | 0:de9d1462a835 | 1033 | } |