Christmas-LCD2
Dependencies: C12832_lcd LCD_fonts mbed
Fork of Christmas-LCD by
C12832_lcd/C12832_lcd.cpp@0:f6a57b843f79, 2012-10-15 (annotated)
- Committer:
- dreschpe
- Date:
- Mon Oct 15 21:48:28 2012 +0000
- Revision:
- 0:f6a57b843f79
first test of the lcd driver
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dreschpe | 0:f6a57b843f79 | 1 | /* mbed library for the mbed Lab Board 128*32 pixel LCD |
dreschpe | 0:f6a57b843f79 | 2 | * use C12832 controller |
dreschpe | 0:f6a57b843f79 | 3 | * Copyright (c) 2012 Peter Drescher - DC2PD |
dreschpe | 0:f6a57b843f79 | 4 | * Released under the MIT License: http://mbed.org/license/mit |
dreschpe | 0:f6a57b843f79 | 5 | * |
dreschpe | 0:f6a57b843f79 | 6 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
dreschpe | 0:f6a57b843f79 | 7 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
dreschpe | 0:f6a57b843f79 | 8 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
dreschpe | 0:f6a57b843f79 | 9 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
dreschpe | 0:f6a57b843f79 | 10 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
dreschpe | 0:f6a57b843f79 | 11 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
dreschpe | 0:f6a57b843f79 | 12 | * THE SOFTWARE. |
dreschpe | 0:f6a57b843f79 | 13 | */ |
dreschpe | 0:f6a57b843f79 | 14 | |
dreschpe | 0:f6a57b843f79 | 15 | // 13.10.12 initial design |
dreschpe | 0:f6a57b843f79 | 16 | // optional defines : |
dreschpe | 0:f6a57b843f79 | 17 | #define debug_lcd 1 |
dreschpe | 0:f6a57b843f79 | 18 | #define use_rtos 1 |
dreschpe | 0:f6a57b843f79 | 19 | |
dreschpe | 0:f6a57b843f79 | 20 | #include "C12832_lcd.h" |
dreschpe | 0:f6a57b843f79 | 21 | #include "mbed.h" |
dreschpe | 0:f6a57b843f79 | 22 | #include "stdio.h" |
dreschpe | 0:f6a57b843f79 | 23 | |
dreschpe | 0:f6a57b843f79 | 24 | #define BPP 1 // Bits per pixel |
dreschpe | 0:f6a57b843f79 | 25 | |
dreschpe | 0:f6a57b843f79 | 26 | #ifdef debug_lcd |
dreschpe | 0:f6a57b843f79 | 27 | extern Serial pc; |
dreschpe | 0:f6a57b843f79 | 28 | #endif |
dreschpe | 0:f6a57b843f79 | 29 | |
dreschpe | 0:f6a57b843f79 | 30 | #ifdef use_rtos |
dreschpe | 0:f6a57b843f79 | 31 | #include "rtos.h" |
dreschpe | 0:f6a57b843f79 | 32 | #endif |
dreschpe | 0:f6a57b843f79 | 33 | |
dreschpe | 0:f6a57b843f79 | 34 | |
dreschpe | 0:f6a57b843f79 | 35 | |
dreschpe | 0:f6a57b843f79 | 36 | C12832_LCD::C12832_LCD(const char* name) |
dreschpe | 0:f6a57b843f79 | 37 | : _spi(p5,NC,p7),_reset(p6),_A0(p8),_CS(p11),GraphicsDisplay(name) |
dreschpe | 0:f6a57b843f79 | 38 | { |
dreschpe | 0:f6a57b843f79 | 39 | orientation = 1; |
dreschpe | 0:f6a57b843f79 | 40 | draw_mode = NORMAL; |
dreschpe | 0:f6a57b843f79 | 41 | char_x = 0; |
dreschpe | 0:f6a57b843f79 | 42 | lcd_reset(); |
dreschpe | 0:f6a57b843f79 | 43 | } |
dreschpe | 0:f6a57b843f79 | 44 | |
dreschpe | 0:f6a57b843f79 | 45 | int C12832_LCD::width() |
dreschpe | 0:f6a57b843f79 | 46 | { |
dreschpe | 0:f6a57b843f79 | 47 | if (orientation == 0 || orientation == 2) return 32; |
dreschpe | 0:f6a57b843f79 | 48 | else return 128; |
dreschpe | 0:f6a57b843f79 | 49 | } |
dreschpe | 0:f6a57b843f79 | 50 | |
dreschpe | 0:f6a57b843f79 | 51 | int C12832_LCD::height() |
dreschpe | 0:f6a57b843f79 | 52 | { |
dreschpe | 0:f6a57b843f79 | 53 | if (orientation == 0 || orientation == 2) return 128; |
dreschpe | 0:f6a57b843f79 | 54 | else return 32; |
dreschpe | 0:f6a57b843f79 | 55 | } |
dreschpe | 0:f6a57b843f79 | 56 | |
dreschpe | 0:f6a57b843f79 | 57 | |
dreschpe | 0:f6a57b843f79 | 58 | void C12832_LCD::set_orientation(unsigned int o) |
dreschpe | 0:f6a57b843f79 | 59 | { |
dreschpe | 0:f6a57b843f79 | 60 | orientation = o; |
dreschpe | 0:f6a57b843f79 | 61 | switch (o) { |
dreschpe | 0:f6a57b843f79 | 62 | case (0): |
dreschpe | 0:f6a57b843f79 | 63 | wr_cmd(0xA0); |
dreschpe | 0:f6a57b843f79 | 64 | wr_cmd(0xC0); |
dreschpe | 0:f6a57b843f79 | 65 | break; |
dreschpe | 0:f6a57b843f79 | 66 | case (1): |
dreschpe | 0:f6a57b843f79 | 67 | wr_cmd(0xA0); |
dreschpe | 0:f6a57b843f79 | 68 | wr_cmd(0xC8); |
dreschpe | 0:f6a57b843f79 | 69 | break; |
dreschpe | 0:f6a57b843f79 | 70 | case (2): |
dreschpe | 0:f6a57b843f79 | 71 | wr_cmd(0xA1); |
dreschpe | 0:f6a57b843f79 | 72 | wr_cmd(0xC8); |
dreschpe | 0:f6a57b843f79 | 73 | break; |
dreschpe | 0:f6a57b843f79 | 74 | case (3): |
dreschpe | 0:f6a57b843f79 | 75 | wr_cmd(0xA1); |
dreschpe | 0:f6a57b843f79 | 76 | wr_cmd(0xC0); |
dreschpe | 0:f6a57b843f79 | 77 | break; |
dreschpe | 0:f6a57b843f79 | 78 | } |
dreschpe | 0:f6a57b843f79 | 79 | } |
dreschpe | 0:f6a57b843f79 | 80 | |
dreschpe | 0:f6a57b843f79 | 81 | void C12832_LCD::invert(unsigned int o) |
dreschpe | 0:f6a57b843f79 | 82 | { |
dreschpe | 0:f6a57b843f79 | 83 | if(o == 0) wr_cmd(0xA6); |
dreschpe | 0:f6a57b843f79 | 84 | else wr_cmd(0xA7); |
dreschpe | 0:f6a57b843f79 | 85 | } |
dreschpe | 0:f6a57b843f79 | 86 | |
dreschpe | 0:f6a57b843f79 | 87 | |
dreschpe | 0:f6a57b843f79 | 88 | void C12832_LCD::set_contrast(unsigned int o) |
dreschpe | 0:f6a57b843f79 | 89 | { |
dreschpe | 0:f6a57b843f79 | 90 | wr_cmd(0x81); // set volume |
dreschpe | 0:f6a57b843f79 | 91 | wr_cmd(o & 0x2F); |
dreschpe | 0:f6a57b843f79 | 92 | } |
dreschpe | 0:f6a57b843f79 | 93 | |
dreschpe | 0:f6a57b843f79 | 94 | |
dreschpe | 0:f6a57b843f79 | 95 | // write command to lcd controller |
dreschpe | 0:f6a57b843f79 | 96 | |
dreschpe | 0:f6a57b843f79 | 97 | void C12832_LCD::wr_cmd(unsigned char cmd) |
dreschpe | 0:f6a57b843f79 | 98 | { |
dreschpe | 0:f6a57b843f79 | 99 | _A0 = 0; |
dreschpe | 0:f6a57b843f79 | 100 | _CS = 0; |
dreschpe | 0:f6a57b843f79 | 101 | LPC_SSP1->DR = cmd; |
dreschpe | 0:f6a57b843f79 | 102 | do { |
dreschpe | 0:f6a57b843f79 | 103 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle |
dreschpe | 0:f6a57b843f79 | 104 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 105 | } |
dreschpe | 0:f6a57b843f79 | 106 | |
dreschpe | 0:f6a57b843f79 | 107 | // write data to lcd controller |
dreschpe | 0:f6a57b843f79 | 108 | |
dreschpe | 0:f6a57b843f79 | 109 | void C12832_LCD::wr_dat(unsigned char dat) |
dreschpe | 0:f6a57b843f79 | 110 | { |
dreschpe | 0:f6a57b843f79 | 111 | _A0 = 1; |
dreschpe | 0:f6a57b843f79 | 112 | _CS = 0; |
dreschpe | 0:f6a57b843f79 | 113 | LPC_SSP1->DR = dat; |
dreschpe | 0:f6a57b843f79 | 114 | do { |
dreschpe | 0:f6a57b843f79 | 115 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle |
dreschpe | 0:f6a57b843f79 | 116 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 117 | } |
dreschpe | 0:f6a57b843f79 | 118 | |
dreschpe | 0:f6a57b843f79 | 119 | // reset and init the lcd controller |
dreschpe | 0:f6a57b843f79 | 120 | |
dreschpe | 0:f6a57b843f79 | 121 | void C12832_LCD::lcd_reset() |
dreschpe | 0:f6a57b843f79 | 122 | { |
dreschpe | 0:f6a57b843f79 | 123 | |
dreschpe | 0:f6a57b843f79 | 124 | #ifdef debug_lcd |
dreschpe | 0:f6a57b843f79 | 125 | pc.printf("init LCD \n\r"); |
dreschpe | 0:f6a57b843f79 | 126 | #endif |
dreschpe | 0:f6a57b843f79 | 127 | |
dreschpe | 0:f6a57b843f79 | 128 | _spi.format(8,3); // 8 bit spi mode 3 |
dreschpe | 0:f6a57b843f79 | 129 | _spi.frequency(20000000); // 19,2 Mhz SPI clock |
dreschpe | 0:f6a57b843f79 | 130 | DigitalOut _reset(p6); |
dreschpe | 0:f6a57b843f79 | 131 | _A0 = 0; |
dreschpe | 0:f6a57b843f79 | 132 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 133 | _reset = 0; // display reset |
dreschpe | 0:f6a57b843f79 | 134 | wait_us(50); |
dreschpe | 0:f6a57b843f79 | 135 | _reset = 1; // end reset |
dreschpe | 0:f6a57b843f79 | 136 | wait_ms(5); |
dreschpe | 0:f6a57b843f79 | 137 | |
dreschpe | 0:f6a57b843f79 | 138 | /* Start Initial Sequence ----------------------------------------------------*/ |
dreschpe | 0:f6a57b843f79 | 139 | |
dreschpe | 0:f6a57b843f79 | 140 | wr_cmd(0xAE); // display off |
dreschpe | 0:f6a57b843f79 | 141 | wr_cmd(0xA2); // bias voltage |
dreschpe | 0:f6a57b843f79 | 142 | |
dreschpe | 0:f6a57b843f79 | 143 | wr_cmd(0xA0); |
dreschpe | 0:f6a57b843f79 | 144 | wr_cmd(0xC8); // colum normal |
dreschpe | 0:f6a57b843f79 | 145 | |
dreschpe | 0:f6a57b843f79 | 146 | wr_cmd(0x22); // voltage resistor ratio |
dreschpe | 0:f6a57b843f79 | 147 | wr_cmd(0x2F); // power on |
dreschpe | 0:f6a57b843f79 | 148 | wr_cmd(0xA4); // LCD display ram |
dreschpe | 0:f6a57b843f79 | 149 | wr_cmd(0x40); // start line = 0 |
dreschpe | 0:f6a57b843f79 | 150 | |
dreschpe | 0:f6a57b843f79 | 151 | memset(buffer,0x00,sizeof(buffer)); // clear display buffer |
dreschpe | 0:f6a57b843f79 | 152 | |
dreschpe | 0:f6a57b843f79 | 153 | wr_cmd(0xAF); // display ON |
dreschpe | 0:f6a57b843f79 | 154 | |
dreschpe | 0:f6a57b843f79 | 155 | wr_cmd(0x81); // set contrast |
dreschpe | 0:f6a57b843f79 | 156 | wr_cmd(0x17); // set contrast |
dreschpe | 0:f6a57b843f79 | 157 | |
dreschpe | 0:f6a57b843f79 | 158 | wr_cmd(0xA6); // display normal |
dreschpe | 0:f6a57b843f79 | 159 | |
dreschpe | 0:f6a57b843f79 | 160 | //setup DMA channel 0 |
dreschpe | 0:f6a57b843f79 | 161 | LPC_SC->PCONP |= (1UL << 29); // Power up the GPDMA |
dreschpe | 0:f6a57b843f79 | 162 | LPC_GPDMA->DMACConfig = 1; // enable DMA controller |
dreschpe | 0:f6a57b843f79 | 163 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:f6a57b843f79 | 164 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:f6a57b843f79 | 165 | LPC_GPDMACH0->DMACCLLI = 0; |
dreschpe | 0:f6a57b843f79 | 166 | |
dreschpe | 0:f6a57b843f79 | 167 | copy_to_lcd(); |
dreschpe | 0:f6a57b843f79 | 168 | |
dreschpe | 0:f6a57b843f79 | 169 | } |
dreschpe | 0:f6a57b843f79 | 170 | |
dreschpe | 0:f6a57b843f79 | 171 | // set one pixel in buffer |
dreschpe | 0:f6a57b843f79 | 172 | |
dreschpe | 0:f6a57b843f79 | 173 | void C12832_LCD::pixel(int x, int y, int color) |
dreschpe | 0:f6a57b843f79 | 174 | { |
dreschpe | 0:f6a57b843f79 | 175 | |
dreschpe | 0:f6a57b843f79 | 176 | // first check paameter |
dreschpe | 0:f6a57b843f79 | 177 | if(x >= width() || y >= height() || x < 0 || y < 0) return; |
dreschpe | 0:f6a57b843f79 | 178 | |
dreschpe | 0:f6a57b843f79 | 179 | if(draw_mode == NORMAL) { |
dreschpe | 0:f6a57b843f79 | 180 | if(color == 0) |
dreschpe | 0:f6a57b843f79 | 181 | buffer[x + (y/8) * 128] &= ~(1 << (y%8)); |
dreschpe | 0:f6a57b843f79 | 182 | else |
dreschpe | 0:f6a57b843f79 | 183 | buffer[x + (y/8) * 128] |= (1 << (y%8)); |
dreschpe | 0:f6a57b843f79 | 184 | } else { // XOR mode |
dreschpe | 0:f6a57b843f79 | 185 | if(color == 1) |
dreschpe | 0:f6a57b843f79 | 186 | buffer[x + (y/8) * 128] ^= (1 << (y%8)); |
dreschpe | 0:f6a57b843f79 | 187 | } |
dreschpe | 0:f6a57b843f79 | 188 | } |
dreschpe | 0:f6a57b843f79 | 189 | |
dreschpe | 0:f6a57b843f79 | 190 | // update lcd |
dreschpe | 0:f6a57b843f79 | 191 | |
dreschpe | 0:f6a57b843f79 | 192 | void C12832_LCD::copy_to_lcd(void) |
dreschpe | 0:f6a57b843f79 | 193 | { |
dreschpe | 0:f6a57b843f79 | 194 | //int i; |
dreschpe | 0:f6a57b843f79 | 195 | |
dreschpe | 0:f6a57b843f79 | 196 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:f6a57b843f79 | 197 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:f6a57b843f79 | 198 | |
dreschpe | 0:f6a57b843f79 | 199 | wr_cmd(0xB0); // set page address 0 |
dreschpe | 0:f6a57b843f79 | 200 | _CS = 0; |
dreschpe | 0:f6a57b843f79 | 201 | _A0 = 1; |
dreschpe | 0:f6a57b843f79 | 202 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:f6a57b843f79 | 203 | LPC_SSP1->DMACR = 0x2; // Enable SSP1 for DMA. |
dreschpe | 0:f6a57b843f79 | 204 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:f6a57b843f79 | 205 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:f6a57b843f79 | 206 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer); |
dreschpe | 0:f6a57b843f79 | 207 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:f6a57b843f79 | 208 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX; |
dreschpe | 0:f6a57b843f79 | 209 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:f6a57b843f79 | 210 | do { |
dreschpe | 0:f6a57b843f79 | 211 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:f6a57b843f79 | 212 | |
dreschpe | 0:f6a57b843f79 | 213 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:f6a57b843f79 | 214 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:f6a57b843f79 | 215 | do { |
dreschpe | 0:f6a57b843f79 | 216 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:f6a57b843f79 | 217 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 218 | wr_cmd(0xB1); // set page address 1 |
dreschpe | 0:f6a57b843f79 | 219 | |
dreschpe | 0:f6a57b843f79 | 220 | _CS = 0; |
dreschpe | 0:f6a57b843f79 | 221 | _A0 = 1; |
dreschpe | 0:f6a57b843f79 | 222 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:f6a57b843f79 | 223 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:f6a57b843f79 | 224 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 128); |
dreschpe | 0:f6a57b843f79 | 225 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:f6a57b843f79 | 226 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX; |
dreschpe | 0:f6a57b843f79 | 227 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:f6a57b843f79 | 228 | do { |
dreschpe | 0:f6a57b843f79 | 229 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:f6a57b843f79 | 230 | |
dreschpe | 0:f6a57b843f79 | 231 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:f6a57b843f79 | 232 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:f6a57b843f79 | 233 | do { |
dreschpe | 0:f6a57b843f79 | 234 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:f6a57b843f79 | 235 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 236 | wr_cmd(0xB2); // set page address 2 |
dreschpe | 0:f6a57b843f79 | 237 | _CS = 0; |
dreschpe | 0:f6a57b843f79 | 238 | _A0 = 1; |
dreschpe | 0:f6a57b843f79 | 239 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:f6a57b843f79 | 240 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:f6a57b843f79 | 241 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 256); |
dreschpe | 0:f6a57b843f79 | 242 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:f6a57b843f79 | 243 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX ; |
dreschpe | 0:f6a57b843f79 | 244 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:f6a57b843f79 | 245 | do { |
dreschpe | 0:f6a57b843f79 | 246 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:f6a57b843f79 | 247 | |
dreschpe | 0:f6a57b843f79 | 248 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:f6a57b843f79 | 249 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:f6a57b843f79 | 250 | do { |
dreschpe | 0:f6a57b843f79 | 251 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:f6a57b843f79 | 252 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 253 | wr_cmd(0xB3); // set page address 3 |
dreschpe | 0:f6a57b843f79 | 254 | _CS = 0; |
dreschpe | 0:f6a57b843f79 | 255 | _A0 = 1; |
dreschpe | 0:f6a57b843f79 | 256 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:f6a57b843f79 | 257 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:f6a57b843f79 | 258 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 384); |
dreschpe | 0:f6a57b843f79 | 259 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:f6a57b843f79 | 260 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX; |
dreschpe | 0:f6a57b843f79 | 261 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:f6a57b843f79 | 262 | do { |
dreschpe | 0:f6a57b843f79 | 263 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:f6a57b843f79 | 264 | |
dreschpe | 0:f6a57b843f79 | 265 | do { |
dreschpe | 0:f6a57b843f79 | 266 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:f6a57b843f79 | 267 | _CS = 1; |
dreschpe | 0:f6a57b843f79 | 268 | } |
dreschpe | 0:f6a57b843f79 | 269 | |
dreschpe | 0:f6a57b843f79 | 270 | void C12832_LCD::cls(void) |
dreschpe | 0:f6a57b843f79 | 271 | { |
dreschpe | 0:f6a57b843f79 | 272 | memset(buffer,0x00,sizeof(buffer)); // clear display buffer |
dreschpe | 0:f6a57b843f79 | 273 | copy_to_lcd(); |
dreschpe | 0:f6a57b843f79 | 274 | } |
dreschpe | 0:f6a57b843f79 | 275 | |
dreschpe | 0:f6a57b843f79 | 276 | |
dreschpe | 0:f6a57b843f79 | 277 | void C12832_LCD::line(int x0, int y0, int x1, int y1, int color) |
dreschpe | 0:f6a57b843f79 | 278 | { |
dreschpe | 0:f6a57b843f79 | 279 | int dx = 0, dy = 0; |
dreschpe | 0:f6a57b843f79 | 280 | int dx_sym = 0, dy_sym = 0; |
dreschpe | 0:f6a57b843f79 | 281 | int dx_x2 = 0, dy_x2 = 0; |
dreschpe | 0:f6a57b843f79 | 282 | int di = 0; |
dreschpe | 0:f6a57b843f79 | 283 | |
dreschpe | 0:f6a57b843f79 | 284 | dx = x1-x0; |
dreschpe | 0:f6a57b843f79 | 285 | dy = y1-y0; |
dreschpe | 0:f6a57b843f79 | 286 | |
dreschpe | 0:f6a57b843f79 | 287 | // if (dx == 0) { /* vertical line */ |
dreschpe | 0:f6a57b843f79 | 288 | // if (y1 > y0) vline(x0,y0,y1,color); |
dreschpe | 0:f6a57b843f79 | 289 | // else vline(x0,y1,y0,color); |
dreschpe | 0:f6a57b843f79 | 290 | // return; |
dreschpe | 0:f6a57b843f79 | 291 | // } |
dreschpe | 0:f6a57b843f79 | 292 | |
dreschpe | 0:f6a57b843f79 | 293 | if (dx > 0) { |
dreschpe | 0:f6a57b843f79 | 294 | dx_sym = 1; |
dreschpe | 0:f6a57b843f79 | 295 | } else { |
dreschpe | 0:f6a57b843f79 | 296 | dx_sym = -1; |
dreschpe | 0:f6a57b843f79 | 297 | } |
dreschpe | 0:f6a57b843f79 | 298 | // if (dy == 0) { /* horizontal line */ |
dreschpe | 0:f6a57b843f79 | 299 | // if (x1 > x0) hline(x0,x1,y0,color); |
dreschpe | 0:f6a57b843f79 | 300 | // else hline(x1,x0,y0,color); |
dreschpe | 0:f6a57b843f79 | 301 | // return; |
dreschpe | 0:f6a57b843f79 | 302 | // } |
dreschpe | 0:f6a57b843f79 | 303 | |
dreschpe | 0:f6a57b843f79 | 304 | if (dy > 0) { |
dreschpe | 0:f6a57b843f79 | 305 | dy_sym = 1; |
dreschpe | 0:f6a57b843f79 | 306 | } else { |
dreschpe | 0:f6a57b843f79 | 307 | dy_sym = -1; |
dreschpe | 0:f6a57b843f79 | 308 | } |
dreschpe | 0:f6a57b843f79 | 309 | |
dreschpe | 0:f6a57b843f79 | 310 | dx = dx_sym*dx; |
dreschpe | 0:f6a57b843f79 | 311 | dy = dy_sym*dy; |
dreschpe | 0:f6a57b843f79 | 312 | |
dreschpe | 0:f6a57b843f79 | 313 | dx_x2 = dx*2; |
dreschpe | 0:f6a57b843f79 | 314 | dy_x2 = dy*2; |
dreschpe | 0:f6a57b843f79 | 315 | |
dreschpe | 0:f6a57b843f79 | 316 | if (dx >= dy) { |
dreschpe | 0:f6a57b843f79 | 317 | di = dy_x2 - dx; |
dreschpe | 0:f6a57b843f79 | 318 | while (x0 != x1) { |
dreschpe | 0:f6a57b843f79 | 319 | |
dreschpe | 0:f6a57b843f79 | 320 | pixel(x0, y0, color); |
dreschpe | 0:f6a57b843f79 | 321 | x0 += dx_sym; |
dreschpe | 0:f6a57b843f79 | 322 | if (di<0) { |
dreschpe | 0:f6a57b843f79 | 323 | di += dy_x2; |
dreschpe | 0:f6a57b843f79 | 324 | } else { |
dreschpe | 0:f6a57b843f79 | 325 | di += dy_x2 - dx_x2; |
dreschpe | 0:f6a57b843f79 | 326 | y0 += dy_sym; |
dreschpe | 0:f6a57b843f79 | 327 | } |
dreschpe | 0:f6a57b843f79 | 328 | } |
dreschpe | 0:f6a57b843f79 | 329 | pixel(x0, y0, color); |
dreschpe | 0:f6a57b843f79 | 330 | } else { |
dreschpe | 0:f6a57b843f79 | 331 | di = dx_x2 - dy; |
dreschpe | 0:f6a57b843f79 | 332 | while (y0 != y1) { |
dreschpe | 0:f6a57b843f79 | 333 | pixel(x0, y0, color); |
dreschpe | 0:f6a57b843f79 | 334 | y0 += dy_sym; |
dreschpe | 0:f6a57b843f79 | 335 | if (di < 0) { |
dreschpe | 0:f6a57b843f79 | 336 | di += dx_x2; |
dreschpe | 0:f6a57b843f79 | 337 | } else { |
dreschpe | 0:f6a57b843f79 | 338 | di += dx_x2 - dy_x2; |
dreschpe | 0:f6a57b843f79 | 339 | x0 += dx_sym; |
dreschpe | 0:f6a57b843f79 | 340 | } |
dreschpe | 0:f6a57b843f79 | 341 | } |
dreschpe | 0:f6a57b843f79 | 342 | pixel(x0, y0, color); |
dreschpe | 0:f6a57b843f79 | 343 | } |
dreschpe | 0:f6a57b843f79 | 344 | return; |
dreschpe | 0:f6a57b843f79 | 345 | } |
dreschpe | 0:f6a57b843f79 | 346 | |
dreschpe | 0:f6a57b843f79 | 347 | void C12832_LCD::rect(int x0, int y0, int x1, int y1, int color) |
dreschpe | 0:f6a57b843f79 | 348 | { |
dreschpe | 0:f6a57b843f79 | 349 | |
dreschpe | 0:f6a57b843f79 | 350 | if (x1 > x0) line(x0,y0,x1,y0,color); |
dreschpe | 0:f6a57b843f79 | 351 | else line(x1,y0,x0,y0,color); |
dreschpe | 0:f6a57b843f79 | 352 | |
dreschpe | 0:f6a57b843f79 | 353 | if (y1 > y0) line(x0,y0,x0,y1,color); |
dreschpe | 0:f6a57b843f79 | 354 | else line(x0,y1,x0,y0,color); |
dreschpe | 0:f6a57b843f79 | 355 | |
dreschpe | 0:f6a57b843f79 | 356 | if (x1 > x0) line(x0,y1,x1,y1,color); |
dreschpe | 0:f6a57b843f79 | 357 | else line(x1,y1,x0,y1,color); |
dreschpe | 0:f6a57b843f79 | 358 | |
dreschpe | 0:f6a57b843f79 | 359 | if (y1 > y0) line(x1,y0,x1,y1,color); |
dreschpe | 0:f6a57b843f79 | 360 | else line(x1,y1,x1,y0,color); |
dreschpe | 0:f6a57b843f79 | 361 | |
dreschpe | 0:f6a57b843f79 | 362 | return; |
dreschpe | 0:f6a57b843f79 | 363 | } |
dreschpe | 0:f6a57b843f79 | 364 | |
dreschpe | 0:f6a57b843f79 | 365 | void C12832_LCD::fillrect(int x0, int y0, int x1, int y1, int color) |
dreschpe | 0:f6a57b843f79 | 366 | { |
dreschpe | 0:f6a57b843f79 | 367 | int l,c,i; |
dreschpe | 0:f6a57b843f79 | 368 | if(x0 > x1) { |
dreschpe | 0:f6a57b843f79 | 369 | i = x0; |
dreschpe | 0:f6a57b843f79 | 370 | x0 = x1; |
dreschpe | 0:f6a57b843f79 | 371 | x1 = i; |
dreschpe | 0:f6a57b843f79 | 372 | } |
dreschpe | 0:f6a57b843f79 | 373 | |
dreschpe | 0:f6a57b843f79 | 374 | if(y0 > y1) { |
dreschpe | 0:f6a57b843f79 | 375 | i = y0; |
dreschpe | 0:f6a57b843f79 | 376 | y0 = y1; |
dreschpe | 0:f6a57b843f79 | 377 | y1 = i; |
dreschpe | 0:f6a57b843f79 | 378 | } |
dreschpe | 0:f6a57b843f79 | 379 | |
dreschpe | 0:f6a57b843f79 | 380 | for(l = x0; l<= x1; l ++) { |
dreschpe | 0:f6a57b843f79 | 381 | for(c = y0; c<= y1; c++) { |
dreschpe | 0:f6a57b843f79 | 382 | pixel(l,c,color); |
dreschpe | 0:f6a57b843f79 | 383 | } |
dreschpe | 0:f6a57b843f79 | 384 | } |
dreschpe | 0:f6a57b843f79 | 385 | } |
dreschpe | 0:f6a57b843f79 | 386 | |
dreschpe | 0:f6a57b843f79 | 387 | |
dreschpe | 0:f6a57b843f79 | 388 | |
dreschpe | 0:f6a57b843f79 | 389 | void C12832_LCD::circle(int x0, int y0, int r, int color) |
dreschpe | 0:f6a57b843f79 | 390 | { |
dreschpe | 0:f6a57b843f79 | 391 | |
dreschpe | 0:f6a57b843f79 | 392 | int draw_x0, draw_y0; |
dreschpe | 0:f6a57b843f79 | 393 | int draw_x1, draw_y1; |
dreschpe | 0:f6a57b843f79 | 394 | int draw_x2, draw_y2; |
dreschpe | 0:f6a57b843f79 | 395 | int draw_x3, draw_y3; |
dreschpe | 0:f6a57b843f79 | 396 | int draw_x4, draw_y4; |
dreschpe | 0:f6a57b843f79 | 397 | int draw_x5, draw_y5; |
dreschpe | 0:f6a57b843f79 | 398 | int draw_x6, draw_y6; |
dreschpe | 0:f6a57b843f79 | 399 | int draw_x7, draw_y7; |
dreschpe | 0:f6a57b843f79 | 400 | int xx, yy; |
dreschpe | 0:f6a57b843f79 | 401 | int di; |
dreschpe | 0:f6a57b843f79 | 402 | //WindowMax(); |
dreschpe | 0:f6a57b843f79 | 403 | if (r == 0) { /* no radius */ |
dreschpe | 0:f6a57b843f79 | 404 | return; |
dreschpe | 0:f6a57b843f79 | 405 | } |
dreschpe | 0:f6a57b843f79 | 406 | |
dreschpe | 0:f6a57b843f79 | 407 | draw_x0 = draw_x1 = x0; |
dreschpe | 0:f6a57b843f79 | 408 | draw_y0 = draw_y1 = y0 + r; |
dreschpe | 0:f6a57b843f79 | 409 | if (draw_y0 < height()) { |
dreschpe | 0:f6a57b843f79 | 410 | pixel(draw_x0, draw_y0, color); /* 90 degree */ |
dreschpe | 0:f6a57b843f79 | 411 | } |
dreschpe | 0:f6a57b843f79 | 412 | |
dreschpe | 0:f6a57b843f79 | 413 | draw_x2 = draw_x3 = x0; |
dreschpe | 0:f6a57b843f79 | 414 | draw_y2 = draw_y3 = y0 - r; |
dreschpe | 0:f6a57b843f79 | 415 | if (draw_y2 >= 0) { |
dreschpe | 0:f6a57b843f79 | 416 | pixel(draw_x2, draw_y2, color); /* 270 degree */ |
dreschpe | 0:f6a57b843f79 | 417 | } |
dreschpe | 0:f6a57b843f79 | 418 | |
dreschpe | 0:f6a57b843f79 | 419 | draw_x4 = draw_x6 = x0 + r; |
dreschpe | 0:f6a57b843f79 | 420 | draw_y4 = draw_y6 = y0; |
dreschpe | 0:f6a57b843f79 | 421 | if (draw_x4 < width()) { |
dreschpe | 0:f6a57b843f79 | 422 | pixel(draw_x4, draw_y4, color); /* 0 degree */ |
dreschpe | 0:f6a57b843f79 | 423 | } |
dreschpe | 0:f6a57b843f79 | 424 | |
dreschpe | 0:f6a57b843f79 | 425 | draw_x5 = draw_x7 = x0 - r; |
dreschpe | 0:f6a57b843f79 | 426 | draw_y5 = draw_y7 = y0; |
dreschpe | 0:f6a57b843f79 | 427 | if (draw_x5>=0) { |
dreschpe | 0:f6a57b843f79 | 428 | pixel(draw_x5, draw_y5, color); /* 180 degree */ |
dreschpe | 0:f6a57b843f79 | 429 | } |
dreschpe | 0:f6a57b843f79 | 430 | |
dreschpe | 0:f6a57b843f79 | 431 | if (r == 1) { |
dreschpe | 0:f6a57b843f79 | 432 | return; |
dreschpe | 0:f6a57b843f79 | 433 | } |
dreschpe | 0:f6a57b843f79 | 434 | |
dreschpe | 0:f6a57b843f79 | 435 | di = 3 - 2*r; |
dreschpe | 0:f6a57b843f79 | 436 | xx = 0; |
dreschpe | 0:f6a57b843f79 | 437 | yy = r; |
dreschpe | 0:f6a57b843f79 | 438 | while (xx < yy) { |
dreschpe | 0:f6a57b843f79 | 439 | |
dreschpe | 0:f6a57b843f79 | 440 | if (di < 0) { |
dreschpe | 0:f6a57b843f79 | 441 | di += 4*xx + 6; |
dreschpe | 0:f6a57b843f79 | 442 | } else { |
dreschpe | 0:f6a57b843f79 | 443 | di += 4*(xx - yy) + 10; |
dreschpe | 0:f6a57b843f79 | 444 | yy--; |
dreschpe | 0:f6a57b843f79 | 445 | draw_y0--; |
dreschpe | 0:f6a57b843f79 | 446 | draw_y1--; |
dreschpe | 0:f6a57b843f79 | 447 | draw_y2++; |
dreschpe | 0:f6a57b843f79 | 448 | draw_y3++; |
dreschpe | 0:f6a57b843f79 | 449 | draw_x4--; |
dreschpe | 0:f6a57b843f79 | 450 | draw_x5++; |
dreschpe | 0:f6a57b843f79 | 451 | draw_x6--; |
dreschpe | 0:f6a57b843f79 | 452 | draw_x7++; |
dreschpe | 0:f6a57b843f79 | 453 | } |
dreschpe | 0:f6a57b843f79 | 454 | xx++; |
dreschpe | 0:f6a57b843f79 | 455 | draw_x0++; |
dreschpe | 0:f6a57b843f79 | 456 | draw_x1--; |
dreschpe | 0:f6a57b843f79 | 457 | draw_x2++; |
dreschpe | 0:f6a57b843f79 | 458 | draw_x3--; |
dreschpe | 0:f6a57b843f79 | 459 | draw_y4++; |
dreschpe | 0:f6a57b843f79 | 460 | draw_y5++; |
dreschpe | 0:f6a57b843f79 | 461 | draw_y6--; |
dreschpe | 0:f6a57b843f79 | 462 | draw_y7--; |
dreschpe | 0:f6a57b843f79 | 463 | |
dreschpe | 0:f6a57b843f79 | 464 | if ( (draw_x0 <= width()) && (draw_y0>=0) ) { |
dreschpe | 0:f6a57b843f79 | 465 | pixel(draw_x0, draw_y0, color); |
dreschpe | 0:f6a57b843f79 | 466 | } |
dreschpe | 0:f6a57b843f79 | 467 | |
dreschpe | 0:f6a57b843f79 | 468 | if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) { |
dreschpe | 0:f6a57b843f79 | 469 | pixel(draw_x1, draw_y1, color); |
dreschpe | 0:f6a57b843f79 | 470 | } |
dreschpe | 0:f6a57b843f79 | 471 | |
dreschpe | 0:f6a57b843f79 | 472 | if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) { |
dreschpe | 0:f6a57b843f79 | 473 | pixel(draw_x2, draw_y2, color); |
dreschpe | 0:f6a57b843f79 | 474 | } |
dreschpe | 0:f6a57b843f79 | 475 | |
dreschpe | 0:f6a57b843f79 | 476 | if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) { |
dreschpe | 0:f6a57b843f79 | 477 | pixel(draw_x3, draw_y3, color); |
dreschpe | 0:f6a57b843f79 | 478 | } |
dreschpe | 0:f6a57b843f79 | 479 | |
dreschpe | 0:f6a57b843f79 | 480 | if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) { |
dreschpe | 0:f6a57b843f79 | 481 | pixel(draw_x4, draw_y4, color); |
dreschpe | 0:f6a57b843f79 | 482 | } |
dreschpe | 0:f6a57b843f79 | 483 | |
dreschpe | 0:f6a57b843f79 | 484 | if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) { |
dreschpe | 0:f6a57b843f79 | 485 | pixel(draw_x5, draw_y5, color); |
dreschpe | 0:f6a57b843f79 | 486 | } |
dreschpe | 0:f6a57b843f79 | 487 | if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) { |
dreschpe | 0:f6a57b843f79 | 488 | pixel(draw_x6, draw_y6, color); |
dreschpe | 0:f6a57b843f79 | 489 | } |
dreschpe | 0:f6a57b843f79 | 490 | if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) { |
dreschpe | 0:f6a57b843f79 | 491 | pixel(draw_x7, draw_y7, color); |
dreschpe | 0:f6a57b843f79 | 492 | } |
dreschpe | 0:f6a57b843f79 | 493 | } |
dreschpe | 0:f6a57b843f79 | 494 | return; |
dreschpe | 0:f6a57b843f79 | 495 | } |
dreschpe | 0:f6a57b843f79 | 496 | |
dreschpe | 0:f6a57b843f79 | 497 | void C12832_LCD::fillcircle(int x, int y, int r, int color) |
dreschpe | 0:f6a57b843f79 | 498 | { |
dreschpe | 0:f6a57b843f79 | 499 | int i; |
dreschpe | 0:f6a57b843f79 | 500 | for (i = 0; i <= r; i++) |
dreschpe | 0:f6a57b843f79 | 501 | circle(x,y,i,color); |
dreschpe | 0:f6a57b843f79 | 502 | } |
dreschpe | 0:f6a57b843f79 | 503 | |
dreschpe | 0:f6a57b843f79 | 504 | void C12832_LCD::setmode(int mode) |
dreschpe | 0:f6a57b843f79 | 505 | { |
dreschpe | 0:f6a57b843f79 | 506 | draw_mode = mode; |
dreschpe | 0:f6a57b843f79 | 507 | } |
dreschpe | 0:f6a57b843f79 | 508 | |
dreschpe | 0:f6a57b843f79 | 509 | void C12832_LCD::locate(int x, int y) |
dreschpe | 0:f6a57b843f79 | 510 | { |
dreschpe | 0:f6a57b843f79 | 511 | char_x = x; |
dreschpe | 0:f6a57b843f79 | 512 | char_y = y; |
dreschpe | 0:f6a57b843f79 | 513 | } |
dreschpe | 0:f6a57b843f79 | 514 | |
dreschpe | 0:f6a57b843f79 | 515 | |
dreschpe | 0:f6a57b843f79 | 516 | |
dreschpe | 0:f6a57b843f79 | 517 | int C12832_LCD::columns() |
dreschpe | 0:f6a57b843f79 | 518 | { |
dreschpe | 0:f6a57b843f79 | 519 | return width() / font[1]; |
dreschpe | 0:f6a57b843f79 | 520 | } |
dreschpe | 0:f6a57b843f79 | 521 | |
dreschpe | 0:f6a57b843f79 | 522 | |
dreschpe | 0:f6a57b843f79 | 523 | |
dreschpe | 0:f6a57b843f79 | 524 | int C12832_LCD::rows() |
dreschpe | 0:f6a57b843f79 | 525 | { |
dreschpe | 0:f6a57b843f79 | 526 | return height() / font[2]; |
dreschpe | 0:f6a57b843f79 | 527 | } |
dreschpe | 0:f6a57b843f79 | 528 | |
dreschpe | 0:f6a57b843f79 | 529 | |
dreschpe | 0:f6a57b843f79 | 530 | |
dreschpe | 0:f6a57b843f79 | 531 | int C12832_LCD::_putc(int value) |
dreschpe | 0:f6a57b843f79 | 532 | { |
dreschpe | 0:f6a57b843f79 | 533 | if (value == '\n') { // new line |
dreschpe | 0:f6a57b843f79 | 534 | char_x = 0; |
dreschpe | 0:f6a57b843f79 | 535 | char_y = char_y + font[2]; |
dreschpe | 0:f6a57b843f79 | 536 | if (char_y >= height() - font[2]) { |
dreschpe | 0:f6a57b843f79 | 537 | char_y = 0; |
dreschpe | 0:f6a57b843f79 | 538 | } |
dreschpe | 0:f6a57b843f79 | 539 | } else { |
dreschpe | 0:f6a57b843f79 | 540 | character(char_x, char_y, value); |
dreschpe | 0:f6a57b843f79 | 541 | } |
dreschpe | 0:f6a57b843f79 | 542 | return value; |
dreschpe | 0:f6a57b843f79 | 543 | } |
dreschpe | 0:f6a57b843f79 | 544 | |
dreschpe | 0:f6a57b843f79 | 545 | void C12832_LCD::character(int x, int y, int c) |
dreschpe | 0:f6a57b843f79 | 546 | { |
dreschpe | 0:f6a57b843f79 | 547 | unsigned int hor,vert,offset,bpl,j,i,b; |
dreschpe | 0:f6a57b843f79 | 548 | unsigned char* zeichen; |
dreschpe | 0:f6a57b843f79 | 549 | unsigned char z,w; |
dreschpe | 0:f6a57b843f79 | 550 | |
dreschpe | 0:f6a57b843f79 | 551 | if ((c < 31) || (c > 127)) return; // test char range |
dreschpe | 0:f6a57b843f79 | 552 | |
dreschpe | 0:f6a57b843f79 | 553 | // read font parameter from start of array |
dreschpe | 0:f6a57b843f79 | 554 | offset = font[0]; // bytes / char |
dreschpe | 0:f6a57b843f79 | 555 | hor = font[1]; // get hor size of font |
dreschpe | 0:f6a57b843f79 | 556 | vert = font[2]; // get vert size of font |
dreschpe | 0:f6a57b843f79 | 557 | bpl = font[3]; // bytes per line |
dreschpe | 0:f6a57b843f79 | 558 | |
dreschpe | 0:f6a57b843f79 | 559 | if (char_x + hor > width()) { |
dreschpe | 0:f6a57b843f79 | 560 | char_x = 0; |
dreschpe | 0:f6a57b843f79 | 561 | char_y = char_y + vert; |
dreschpe | 0:f6a57b843f79 | 562 | if (char_y >= height() - font[2]) { |
dreschpe | 0:f6a57b843f79 | 563 | char_y = 0; |
dreschpe | 0:f6a57b843f79 | 564 | } |
dreschpe | 0:f6a57b843f79 | 565 | } |
dreschpe | 0:f6a57b843f79 | 566 | |
dreschpe | 0:f6a57b843f79 | 567 | zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap |
dreschpe | 0:f6a57b843f79 | 568 | w = zeichen[0]; // width of actual char |
dreschpe | 0:f6a57b843f79 | 569 | // construct the char into the buffer |
dreschpe | 0:f6a57b843f79 | 570 | for (j=0; j<vert; j++) { // vert line |
dreschpe | 0:f6a57b843f79 | 571 | for (i=0; i<hor; i++) { // horz line |
dreschpe | 0:f6a57b843f79 | 572 | z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; |
dreschpe | 0:f6a57b843f79 | 573 | b = 1 << (j & 0x07); |
dreschpe | 0:f6a57b843f79 | 574 | if (( z & b ) == 0x00) { |
dreschpe | 0:f6a57b843f79 | 575 | pixel(x+i,y+j,0); |
dreschpe | 0:f6a57b843f79 | 576 | } else { |
dreschpe | 0:f6a57b843f79 | 577 | pixel(x+i,y+j,1); |
dreschpe | 0:f6a57b843f79 | 578 | } |
dreschpe | 0:f6a57b843f79 | 579 | |
dreschpe | 0:f6a57b843f79 | 580 | } |
dreschpe | 0:f6a57b843f79 | 581 | } |
dreschpe | 0:f6a57b843f79 | 582 | |
dreschpe | 0:f6a57b843f79 | 583 | char_x += w; |
dreschpe | 0:f6a57b843f79 | 584 | } |
dreschpe | 0:f6a57b843f79 | 585 | |
dreschpe | 0:f6a57b843f79 | 586 | |
dreschpe | 0:f6a57b843f79 | 587 | void C12832_LCD::set_font(unsigned char* f) |
dreschpe | 0:f6a57b843f79 | 588 | { |
dreschpe | 0:f6a57b843f79 | 589 | font = f; |
dreschpe | 0:f6a57b843f79 | 590 | } |
dreschpe | 0:f6a57b843f79 | 591 | |
dreschpe | 0:f6a57b843f79 | 592 | |
dreschpe | 0:f6a57b843f79 | 593 |