My Version
C12832_lcd.cpp@1:66dd8afbfd06, 2012-10-16 (annotated)
- Committer:
- dreschpe
- Date:
- Tue Oct 16 17:50:37 2012 +0000
- Revision:
- 1:66dd8afbfd06
- Parent:
- 0:4bbc531be6e2
- Child:
- 2:bdc53502af17
add get_contrast to read contrast setting
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dreschpe | 0:4bbc531be6e2 | 1 | /* mbed library for the mbed Lab Board 128*32 pixel LCD |
dreschpe | 0:4bbc531be6e2 | 2 | * use C12832 controller |
dreschpe | 0:4bbc531be6e2 | 3 | * Copyright (c) 2012 Peter Drescher - DC2PD |
dreschpe | 0:4bbc531be6e2 | 4 | * Released under the MIT License: http://mbed.org/license/mit |
dreschpe | 0:4bbc531be6e2 | 5 | * |
dreschpe | 0:4bbc531be6e2 | 6 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
dreschpe | 0:4bbc531be6e2 | 7 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
dreschpe | 0:4bbc531be6e2 | 8 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
dreschpe | 0:4bbc531be6e2 | 9 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
dreschpe | 0:4bbc531be6e2 | 10 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
dreschpe | 0:4bbc531be6e2 | 11 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
dreschpe | 0:4bbc531be6e2 | 12 | * THE SOFTWARE. |
dreschpe | 0:4bbc531be6e2 | 13 | */ |
dreschpe | 0:4bbc531be6e2 | 14 | |
dreschpe | 0:4bbc531be6e2 | 15 | // 13.10.12 initial design |
dreschpe | 0:4bbc531be6e2 | 16 | // optional defines : |
dreschpe | 0:4bbc531be6e2 | 17 | #define debug_lcd 1 |
dreschpe | 0:4bbc531be6e2 | 18 | |
dreschpe | 0:4bbc531be6e2 | 19 | #include "C12832_lcd.h" |
dreschpe | 0:4bbc531be6e2 | 20 | #include "mbed.h" |
dreschpe | 0:4bbc531be6e2 | 21 | #include "stdio.h" |
dreschpe | 0:4bbc531be6e2 | 22 | |
dreschpe | 0:4bbc531be6e2 | 23 | #define BPP 1 // Bits per pixel |
dreschpe | 0:4bbc531be6e2 | 24 | |
dreschpe | 0:4bbc531be6e2 | 25 | C12832_LCD::C12832_LCD(const char* name) |
dreschpe | 0:4bbc531be6e2 | 26 | : _spi(p5,NC,p7),_reset(p6),_A0(p8),_CS(p11),GraphicsDisplay(name) |
dreschpe | 0:4bbc531be6e2 | 27 | { |
dreschpe | 0:4bbc531be6e2 | 28 | orientation = 1; |
dreschpe | 0:4bbc531be6e2 | 29 | draw_mode = NORMAL; |
dreschpe | 0:4bbc531be6e2 | 30 | char_x = 0; |
dreschpe | 0:4bbc531be6e2 | 31 | lcd_reset(); |
dreschpe | 0:4bbc531be6e2 | 32 | } |
dreschpe | 0:4bbc531be6e2 | 33 | |
dreschpe | 0:4bbc531be6e2 | 34 | int C12832_LCD::width() |
dreschpe | 0:4bbc531be6e2 | 35 | { |
dreschpe | 0:4bbc531be6e2 | 36 | if (orientation == 0 || orientation == 2) return 32; |
dreschpe | 0:4bbc531be6e2 | 37 | else return 128; |
dreschpe | 0:4bbc531be6e2 | 38 | } |
dreschpe | 0:4bbc531be6e2 | 39 | |
dreschpe | 0:4bbc531be6e2 | 40 | int C12832_LCD::height() |
dreschpe | 0:4bbc531be6e2 | 41 | { |
dreschpe | 0:4bbc531be6e2 | 42 | if (orientation == 0 || orientation == 2) return 128; |
dreschpe | 0:4bbc531be6e2 | 43 | else return 32; |
dreschpe | 0:4bbc531be6e2 | 44 | } |
dreschpe | 0:4bbc531be6e2 | 45 | |
dreschpe | 0:4bbc531be6e2 | 46 | |
dreschpe | 1:66dd8afbfd06 | 47 | /*void C12832_LCD::set_orientation(unsigned int o) |
dreschpe | 0:4bbc531be6e2 | 48 | { |
dreschpe | 0:4bbc531be6e2 | 49 | orientation = o; |
dreschpe | 0:4bbc531be6e2 | 50 | switch (o) { |
dreschpe | 0:4bbc531be6e2 | 51 | case (0): |
dreschpe | 0:4bbc531be6e2 | 52 | wr_cmd(0xA0); |
dreschpe | 0:4bbc531be6e2 | 53 | wr_cmd(0xC0); |
dreschpe | 0:4bbc531be6e2 | 54 | break; |
dreschpe | 0:4bbc531be6e2 | 55 | case (1): |
dreschpe | 0:4bbc531be6e2 | 56 | wr_cmd(0xA0); |
dreschpe | 0:4bbc531be6e2 | 57 | wr_cmd(0xC8); |
dreschpe | 0:4bbc531be6e2 | 58 | break; |
dreschpe | 0:4bbc531be6e2 | 59 | case (2): |
dreschpe | 0:4bbc531be6e2 | 60 | wr_cmd(0xA1); |
dreschpe | 0:4bbc531be6e2 | 61 | wr_cmd(0xC8); |
dreschpe | 0:4bbc531be6e2 | 62 | break; |
dreschpe | 0:4bbc531be6e2 | 63 | case (3): |
dreschpe | 0:4bbc531be6e2 | 64 | wr_cmd(0xA1); |
dreschpe | 0:4bbc531be6e2 | 65 | wr_cmd(0xC0); |
dreschpe | 0:4bbc531be6e2 | 66 | break; |
dreschpe | 0:4bbc531be6e2 | 67 | } |
dreschpe | 0:4bbc531be6e2 | 68 | } |
dreschpe | 0:4bbc531be6e2 | 69 | |
dreschpe | 1:66dd8afbfd06 | 70 | */ |
dreschpe | 1:66dd8afbfd06 | 71 | |
dreschpe | 0:4bbc531be6e2 | 72 | void C12832_LCD::invert(unsigned int o) |
dreschpe | 0:4bbc531be6e2 | 73 | { |
dreschpe | 0:4bbc531be6e2 | 74 | if(o == 0) wr_cmd(0xA6); |
dreschpe | 0:4bbc531be6e2 | 75 | else wr_cmd(0xA7); |
dreschpe | 0:4bbc531be6e2 | 76 | } |
dreschpe | 0:4bbc531be6e2 | 77 | |
dreschpe | 0:4bbc531be6e2 | 78 | |
dreschpe | 0:4bbc531be6e2 | 79 | void C12832_LCD::set_contrast(unsigned int o) |
dreschpe | 0:4bbc531be6e2 | 80 | { |
dreschpe | 1:66dd8afbfd06 | 81 | contrast = o; |
dreschpe | 0:4bbc531be6e2 | 82 | wr_cmd(0x81); // set volume |
dreschpe | 0:4bbc531be6e2 | 83 | wr_cmd(o & 0x2F); |
dreschpe | 0:4bbc531be6e2 | 84 | } |
dreschpe | 0:4bbc531be6e2 | 85 | |
dreschpe | 1:66dd8afbfd06 | 86 | unsigned int C12832_LCD::get_contrast(void) |
dreschpe | 1:66dd8afbfd06 | 87 | { |
dreschpe | 1:66dd8afbfd06 | 88 | return(contrast); |
dreschpe | 1:66dd8afbfd06 | 89 | } |
dreschpe | 1:66dd8afbfd06 | 90 | |
dreschpe | 0:4bbc531be6e2 | 91 | |
dreschpe | 0:4bbc531be6e2 | 92 | // write command to lcd controller |
dreschpe | 0:4bbc531be6e2 | 93 | |
dreschpe | 0:4bbc531be6e2 | 94 | void C12832_LCD::wr_cmd(unsigned char cmd) |
dreschpe | 0:4bbc531be6e2 | 95 | { |
dreschpe | 0:4bbc531be6e2 | 96 | _A0 = 0; |
dreschpe | 0:4bbc531be6e2 | 97 | _CS = 0; |
dreschpe | 0:4bbc531be6e2 | 98 | LPC_SSP1->DR = cmd; |
dreschpe | 0:4bbc531be6e2 | 99 | do { |
dreschpe | 0:4bbc531be6e2 | 100 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle |
dreschpe | 0:4bbc531be6e2 | 101 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 102 | } |
dreschpe | 0:4bbc531be6e2 | 103 | |
dreschpe | 0:4bbc531be6e2 | 104 | // write data to lcd controller |
dreschpe | 0:4bbc531be6e2 | 105 | |
dreschpe | 0:4bbc531be6e2 | 106 | void C12832_LCD::wr_dat(unsigned char dat) |
dreschpe | 0:4bbc531be6e2 | 107 | { |
dreschpe | 0:4bbc531be6e2 | 108 | _A0 = 1; |
dreschpe | 0:4bbc531be6e2 | 109 | _CS = 0; |
dreschpe | 0:4bbc531be6e2 | 110 | LPC_SSP1->DR = dat; |
dreschpe | 0:4bbc531be6e2 | 111 | do { |
dreschpe | 0:4bbc531be6e2 | 112 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle |
dreschpe | 0:4bbc531be6e2 | 113 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 114 | } |
dreschpe | 0:4bbc531be6e2 | 115 | |
dreschpe | 0:4bbc531be6e2 | 116 | // reset and init the lcd controller |
dreschpe | 0:4bbc531be6e2 | 117 | |
dreschpe | 0:4bbc531be6e2 | 118 | void C12832_LCD::lcd_reset() |
dreschpe | 0:4bbc531be6e2 | 119 | { |
dreschpe | 0:4bbc531be6e2 | 120 | |
dreschpe | 0:4bbc531be6e2 | 121 | _spi.format(8,3); // 8 bit spi mode 3 |
dreschpe | 0:4bbc531be6e2 | 122 | _spi.frequency(20000000); // 19,2 Mhz SPI clock |
dreschpe | 0:4bbc531be6e2 | 123 | DigitalOut _reset(p6); |
dreschpe | 0:4bbc531be6e2 | 124 | _A0 = 0; |
dreschpe | 0:4bbc531be6e2 | 125 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 126 | _reset = 0; // display reset |
dreschpe | 0:4bbc531be6e2 | 127 | wait_us(50); |
dreschpe | 0:4bbc531be6e2 | 128 | _reset = 1; // end reset |
dreschpe | 0:4bbc531be6e2 | 129 | wait_ms(5); |
dreschpe | 0:4bbc531be6e2 | 130 | |
dreschpe | 0:4bbc531be6e2 | 131 | /* Start Initial Sequence ----------------------------------------------------*/ |
dreschpe | 0:4bbc531be6e2 | 132 | |
dreschpe | 0:4bbc531be6e2 | 133 | wr_cmd(0xAE); // display off |
dreschpe | 0:4bbc531be6e2 | 134 | wr_cmd(0xA2); // bias voltage |
dreschpe | 0:4bbc531be6e2 | 135 | |
dreschpe | 0:4bbc531be6e2 | 136 | wr_cmd(0xA0); |
dreschpe | 0:4bbc531be6e2 | 137 | wr_cmd(0xC8); // colum normal |
dreschpe | 0:4bbc531be6e2 | 138 | |
dreschpe | 0:4bbc531be6e2 | 139 | wr_cmd(0x22); // voltage resistor ratio |
dreschpe | 0:4bbc531be6e2 | 140 | wr_cmd(0x2F); // power on |
dreschpe | 1:66dd8afbfd06 | 141 | //wr_cmd(0xA4); // LCD display ram |
dreschpe | 0:4bbc531be6e2 | 142 | wr_cmd(0x40); // start line = 0 |
dreschpe | 0:4bbc531be6e2 | 143 | wr_cmd(0xAF); // display ON |
dreschpe | 0:4bbc531be6e2 | 144 | |
dreschpe | 0:4bbc531be6e2 | 145 | wr_cmd(0x81); // set contrast |
dreschpe | 0:4bbc531be6e2 | 146 | wr_cmd(0x17); // set contrast |
dreschpe | 0:4bbc531be6e2 | 147 | |
dreschpe | 0:4bbc531be6e2 | 148 | wr_cmd(0xA6); // display normal |
dreschpe | 0:4bbc531be6e2 | 149 | |
dreschpe | 0:4bbc531be6e2 | 150 | //setup DMA channel 0 |
dreschpe | 0:4bbc531be6e2 | 151 | LPC_SC->PCONP |= (1UL << 29); // Power up the GPDMA |
dreschpe | 0:4bbc531be6e2 | 152 | LPC_GPDMA->DMACConfig = 1; // enable DMA controller |
dreschpe | 0:4bbc531be6e2 | 153 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:4bbc531be6e2 | 154 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:4bbc531be6e2 | 155 | LPC_GPDMACH0->DMACCLLI = 0; |
dreschpe | 0:4bbc531be6e2 | 156 | // clear and update LCD |
dreschpe | 0:4bbc531be6e2 | 157 | memset(buffer,0x00,512); // clear display buffer |
dreschpe | 0:4bbc531be6e2 | 158 | copy_to_lcd(); |
dreschpe | 0:4bbc531be6e2 | 159 | } |
dreschpe | 0:4bbc531be6e2 | 160 | |
dreschpe | 0:4bbc531be6e2 | 161 | // set one pixel in buffer |
dreschpe | 0:4bbc531be6e2 | 162 | |
dreschpe | 0:4bbc531be6e2 | 163 | void C12832_LCD::pixel(int x, int y, int color) |
dreschpe | 0:4bbc531be6e2 | 164 | { |
dreschpe | 0:4bbc531be6e2 | 165 | // first check parameter |
dreschpe | 0:4bbc531be6e2 | 166 | if(x > 128 || y > 32 || x < 0 || y < 0) return; |
dreschpe | 0:4bbc531be6e2 | 167 | |
dreschpe | 0:4bbc531be6e2 | 168 | if(draw_mode == NORMAL) { |
dreschpe | 0:4bbc531be6e2 | 169 | if(color == 0) |
dreschpe | 0:4bbc531be6e2 | 170 | buffer[x + ((y/8) * 128)] &= ~(1 << (y%8)); // erase pixel |
dreschpe | 0:4bbc531be6e2 | 171 | else |
dreschpe | 0:4bbc531be6e2 | 172 | buffer[x + ((y/8) * 128)] |= (1 << (y%8)); // set pixel |
dreschpe | 0:4bbc531be6e2 | 173 | } else { // XOR mode |
dreschpe | 0:4bbc531be6e2 | 174 | if(color == 1) |
dreschpe | 0:4bbc531be6e2 | 175 | buffer[x + ((y/8) * 128)] ^= (1 << (y%8)); // xor pixel |
dreschpe | 0:4bbc531be6e2 | 176 | } |
dreschpe | 0:4bbc531be6e2 | 177 | } |
dreschpe | 0:4bbc531be6e2 | 178 | |
dreschpe | 0:4bbc531be6e2 | 179 | // update lcd |
dreschpe | 0:4bbc531be6e2 | 180 | |
dreschpe | 0:4bbc531be6e2 | 181 | void C12832_LCD::copy_to_lcd(void) |
dreschpe | 0:4bbc531be6e2 | 182 | { |
dreschpe | 0:4bbc531be6e2 | 183 | //page 0 |
dreschpe | 0:4bbc531be6e2 | 184 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:4bbc531be6e2 | 185 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:4bbc531be6e2 | 186 | wr_cmd(0xB0); // set page address 0 |
dreschpe | 0:4bbc531be6e2 | 187 | _CS = 0; |
dreschpe | 0:4bbc531be6e2 | 188 | _A0 = 1; |
dreschpe | 0:4bbc531be6e2 | 189 | // start 128 byte DMA transfer to SPI1 |
dreschpe | 0:4bbc531be6e2 | 190 | LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1 |
dreschpe | 0:4bbc531be6e2 | 191 | LPC_SSP1->DMACR = 0x2; // Enable SSP1 for DMA. |
dreschpe | 0:4bbc531be6e2 | 192 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:4bbc531be6e2 | 193 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:4bbc531be6e2 | 194 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer); |
dreschpe | 0:4bbc531be6e2 | 195 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:4bbc531be6e2 | 196 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX; |
dreschpe | 0:4bbc531be6e2 | 197 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:4bbc531be6e2 | 198 | do { |
dreschpe | 0:4bbc531be6e2 | 199 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:4bbc531be6e2 | 200 | do { |
dreschpe | 0:4bbc531be6e2 | 201 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:4bbc531be6e2 | 202 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 203 | |
dreschpe | 0:4bbc531be6e2 | 204 | // page 1 |
dreschpe | 0:4bbc531be6e2 | 205 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:4bbc531be6e2 | 206 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:4bbc531be6e2 | 207 | wr_cmd(0xB1); // set page address 1 |
dreschpe | 0:4bbc531be6e2 | 208 | _CS = 0; |
dreschpe | 0:4bbc531be6e2 | 209 | _A0 = 1; |
dreschpe | 0:4bbc531be6e2 | 210 | // start 128 byte DMA transfer to SPI1 |
dreschpe | 0:4bbc531be6e2 | 211 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:4bbc531be6e2 | 212 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:4bbc531be6e2 | 213 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 128); |
dreschpe | 0:4bbc531be6e2 | 214 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:4bbc531be6e2 | 215 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX; |
dreschpe | 0:4bbc531be6e2 | 216 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:4bbc531be6e2 | 217 | do { |
dreschpe | 0:4bbc531be6e2 | 218 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:4bbc531be6e2 | 219 | do { |
dreschpe | 0:4bbc531be6e2 | 220 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:4bbc531be6e2 | 221 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 222 | |
dreschpe | 0:4bbc531be6e2 | 223 | //page 2 |
dreschpe | 0:4bbc531be6e2 | 224 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:4bbc531be6e2 | 225 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:4bbc531be6e2 | 226 | wr_cmd(0xB2); // set page address 2 |
dreschpe | 0:4bbc531be6e2 | 227 | _CS = 0; |
dreschpe | 0:4bbc531be6e2 | 228 | _A0 = 1; |
dreschpe | 0:4bbc531be6e2 | 229 | // start 128 byte DMA transfer to SPI1 |
dreschpe | 0:4bbc531be6e2 | 230 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:4bbc531be6e2 | 231 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:4bbc531be6e2 | 232 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 256); |
dreschpe | 0:4bbc531be6e2 | 233 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:4bbc531be6e2 | 234 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX ; |
dreschpe | 0:4bbc531be6e2 | 235 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:4bbc531be6e2 | 236 | do { |
dreschpe | 0:4bbc531be6e2 | 237 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:4bbc531be6e2 | 238 | do { |
dreschpe | 0:4bbc531be6e2 | 239 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:4bbc531be6e2 | 240 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 241 | |
dreschpe | 0:4bbc531be6e2 | 242 | //page 3 |
dreschpe | 0:4bbc531be6e2 | 243 | wr_cmd(0x00); // set column low nibble 0 |
dreschpe | 0:4bbc531be6e2 | 244 | wr_cmd(0x10); // set column hi nibble 0 |
dreschpe | 0:4bbc531be6e2 | 245 | wr_cmd(0xB3); // set page address 3 |
dreschpe | 0:4bbc531be6e2 | 246 | _CS = 0; |
dreschpe | 0:4bbc531be6e2 | 247 | _A0 = 1; |
dreschpe | 0:4bbc531be6e2 | 248 | // start 128 byte DMA transfer to SPI1 |
dreschpe | 0:4bbc531be6e2 | 249 | LPC_GPDMA->DMACIntTCClear = 0x1; |
dreschpe | 0:4bbc531be6e2 | 250 | LPC_GPDMA->DMACIntErrClr = 0x1; |
dreschpe | 0:4bbc531be6e2 | 251 | LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 384); |
dreschpe | 0:4bbc531be6e2 | 252 | LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt |
dreschpe | 0:4bbc531be6e2 | 253 | LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX; |
dreschpe | 0:4bbc531be6e2 | 254 | LPC_GPDMA->DMACSoftSReq = 0x1; |
dreschpe | 0:4bbc531be6e2 | 255 | do { |
dreschpe | 0:4bbc531be6e2 | 256 | } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running |
dreschpe | 0:4bbc531be6e2 | 257 | do { |
dreschpe | 0:4bbc531be6e2 | 258 | } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle |
dreschpe | 0:4bbc531be6e2 | 259 | _CS = 1; |
dreschpe | 0:4bbc531be6e2 | 260 | } |
dreschpe | 0:4bbc531be6e2 | 261 | |
dreschpe | 0:4bbc531be6e2 | 262 | void C12832_LCD::cls(void) |
dreschpe | 0:4bbc531be6e2 | 263 | { |
dreschpe | 0:4bbc531be6e2 | 264 | memset(buffer,0x00,512); // clear display buffer |
dreschpe | 0:4bbc531be6e2 | 265 | copy_to_lcd(); |
dreschpe | 0:4bbc531be6e2 | 266 | } |
dreschpe | 0:4bbc531be6e2 | 267 | |
dreschpe | 0:4bbc531be6e2 | 268 | |
dreschpe | 0:4bbc531be6e2 | 269 | void C12832_LCD::line(int x0, int y0, int x1, int y1, int color) |
dreschpe | 0:4bbc531be6e2 | 270 | { |
dreschpe | 0:4bbc531be6e2 | 271 | int dx = 0, dy = 0; |
dreschpe | 0:4bbc531be6e2 | 272 | int dx_sym = 0, dy_sym = 0; |
dreschpe | 0:4bbc531be6e2 | 273 | int dx_x2 = 0, dy_x2 = 0; |
dreschpe | 0:4bbc531be6e2 | 274 | int di = 0; |
dreschpe | 0:4bbc531be6e2 | 275 | |
dreschpe | 0:4bbc531be6e2 | 276 | dx = x1-x0; |
dreschpe | 0:4bbc531be6e2 | 277 | dy = y1-y0; |
dreschpe | 0:4bbc531be6e2 | 278 | |
dreschpe | 0:4bbc531be6e2 | 279 | // if (dx == 0) { /* vertical line */ |
dreschpe | 0:4bbc531be6e2 | 280 | // if (y1 > y0) vline(x0,y0,y1,color); |
dreschpe | 0:4bbc531be6e2 | 281 | // else vline(x0,y1,y0,color); |
dreschpe | 0:4bbc531be6e2 | 282 | // return; |
dreschpe | 0:4bbc531be6e2 | 283 | // } |
dreschpe | 0:4bbc531be6e2 | 284 | |
dreschpe | 0:4bbc531be6e2 | 285 | if (dx > 0) { |
dreschpe | 0:4bbc531be6e2 | 286 | dx_sym = 1; |
dreschpe | 0:4bbc531be6e2 | 287 | } else { |
dreschpe | 0:4bbc531be6e2 | 288 | dx_sym = -1; |
dreschpe | 0:4bbc531be6e2 | 289 | } |
dreschpe | 0:4bbc531be6e2 | 290 | // if (dy == 0) { /* horizontal line */ |
dreschpe | 0:4bbc531be6e2 | 291 | // if (x1 > x0) hline(x0,x1,y0,color); |
dreschpe | 0:4bbc531be6e2 | 292 | // else hline(x1,x0,y0,color); |
dreschpe | 0:4bbc531be6e2 | 293 | // return; |
dreschpe | 0:4bbc531be6e2 | 294 | // } |
dreschpe | 0:4bbc531be6e2 | 295 | |
dreschpe | 0:4bbc531be6e2 | 296 | if (dy > 0) { |
dreschpe | 0:4bbc531be6e2 | 297 | dy_sym = 1; |
dreschpe | 0:4bbc531be6e2 | 298 | } else { |
dreschpe | 0:4bbc531be6e2 | 299 | dy_sym = -1; |
dreschpe | 0:4bbc531be6e2 | 300 | } |
dreschpe | 0:4bbc531be6e2 | 301 | |
dreschpe | 0:4bbc531be6e2 | 302 | dx = dx_sym*dx; |
dreschpe | 0:4bbc531be6e2 | 303 | dy = dy_sym*dy; |
dreschpe | 0:4bbc531be6e2 | 304 | |
dreschpe | 0:4bbc531be6e2 | 305 | dx_x2 = dx*2; |
dreschpe | 0:4bbc531be6e2 | 306 | dy_x2 = dy*2; |
dreschpe | 0:4bbc531be6e2 | 307 | |
dreschpe | 0:4bbc531be6e2 | 308 | if (dx >= dy) { |
dreschpe | 0:4bbc531be6e2 | 309 | di = dy_x2 - dx; |
dreschpe | 0:4bbc531be6e2 | 310 | while (x0 != x1) { |
dreschpe | 0:4bbc531be6e2 | 311 | |
dreschpe | 0:4bbc531be6e2 | 312 | pixel(x0, y0, color); |
dreschpe | 0:4bbc531be6e2 | 313 | x0 += dx_sym; |
dreschpe | 0:4bbc531be6e2 | 314 | if (di<0) { |
dreschpe | 0:4bbc531be6e2 | 315 | di += dy_x2; |
dreschpe | 0:4bbc531be6e2 | 316 | } else { |
dreschpe | 0:4bbc531be6e2 | 317 | di += dy_x2 - dx_x2; |
dreschpe | 0:4bbc531be6e2 | 318 | y0 += dy_sym; |
dreschpe | 0:4bbc531be6e2 | 319 | } |
dreschpe | 0:4bbc531be6e2 | 320 | } |
dreschpe | 0:4bbc531be6e2 | 321 | pixel(x0, y0, color); |
dreschpe | 0:4bbc531be6e2 | 322 | } else { |
dreschpe | 0:4bbc531be6e2 | 323 | di = dx_x2 - dy; |
dreschpe | 0:4bbc531be6e2 | 324 | while (y0 != y1) { |
dreschpe | 0:4bbc531be6e2 | 325 | pixel(x0, y0, color); |
dreschpe | 0:4bbc531be6e2 | 326 | y0 += dy_sym; |
dreschpe | 0:4bbc531be6e2 | 327 | if (di < 0) { |
dreschpe | 0:4bbc531be6e2 | 328 | di += dx_x2; |
dreschpe | 0:4bbc531be6e2 | 329 | } else { |
dreschpe | 0:4bbc531be6e2 | 330 | di += dx_x2 - dy_x2; |
dreschpe | 0:4bbc531be6e2 | 331 | x0 += dx_sym; |
dreschpe | 0:4bbc531be6e2 | 332 | } |
dreschpe | 0:4bbc531be6e2 | 333 | } |
dreschpe | 0:4bbc531be6e2 | 334 | pixel(x0, y0, color); |
dreschpe | 0:4bbc531be6e2 | 335 | } |
dreschpe | 0:4bbc531be6e2 | 336 | return; |
dreschpe | 0:4bbc531be6e2 | 337 | } |
dreschpe | 0:4bbc531be6e2 | 338 | |
dreschpe | 0:4bbc531be6e2 | 339 | void C12832_LCD::rect(int x0, int y0, int x1, int y1, int color) |
dreschpe | 0:4bbc531be6e2 | 340 | { |
dreschpe | 0:4bbc531be6e2 | 341 | |
dreschpe | 0:4bbc531be6e2 | 342 | if (x1 > x0) line(x0,y0,x1,y0,color); |
dreschpe | 0:4bbc531be6e2 | 343 | else line(x1,y0,x0,y0,color); |
dreschpe | 0:4bbc531be6e2 | 344 | |
dreschpe | 0:4bbc531be6e2 | 345 | if (y1 > y0) line(x0,y0,x0,y1,color); |
dreschpe | 0:4bbc531be6e2 | 346 | else line(x0,y1,x0,y0,color); |
dreschpe | 0:4bbc531be6e2 | 347 | |
dreschpe | 0:4bbc531be6e2 | 348 | if (x1 > x0) line(x0,y1,x1,y1,color); |
dreschpe | 0:4bbc531be6e2 | 349 | else line(x1,y1,x0,y1,color); |
dreschpe | 0:4bbc531be6e2 | 350 | |
dreschpe | 0:4bbc531be6e2 | 351 | if (y1 > y0) line(x1,y0,x1,y1,color); |
dreschpe | 0:4bbc531be6e2 | 352 | else line(x1,y1,x1,y0,color); |
dreschpe | 0:4bbc531be6e2 | 353 | |
dreschpe | 0:4bbc531be6e2 | 354 | return; |
dreschpe | 0:4bbc531be6e2 | 355 | } |
dreschpe | 0:4bbc531be6e2 | 356 | |
dreschpe | 0:4bbc531be6e2 | 357 | void C12832_LCD::fillrect(int x0, int y0, int x1, int y1, int color) |
dreschpe | 0:4bbc531be6e2 | 358 | { |
dreschpe | 0:4bbc531be6e2 | 359 | int l,c,i; |
dreschpe | 0:4bbc531be6e2 | 360 | if(x0 > x1) { |
dreschpe | 0:4bbc531be6e2 | 361 | i = x0; |
dreschpe | 0:4bbc531be6e2 | 362 | x0 = x1; |
dreschpe | 0:4bbc531be6e2 | 363 | x1 = i; |
dreschpe | 0:4bbc531be6e2 | 364 | } |
dreschpe | 0:4bbc531be6e2 | 365 | |
dreschpe | 0:4bbc531be6e2 | 366 | if(y0 > y1) { |
dreschpe | 0:4bbc531be6e2 | 367 | i = y0; |
dreschpe | 0:4bbc531be6e2 | 368 | y0 = y1; |
dreschpe | 0:4bbc531be6e2 | 369 | y1 = i; |
dreschpe | 0:4bbc531be6e2 | 370 | } |
dreschpe | 0:4bbc531be6e2 | 371 | |
dreschpe | 0:4bbc531be6e2 | 372 | for(l = x0; l<= x1; l ++) { |
dreschpe | 0:4bbc531be6e2 | 373 | for(c = y0; c<= y1; c++) { |
dreschpe | 0:4bbc531be6e2 | 374 | pixel(l,c,color); |
dreschpe | 0:4bbc531be6e2 | 375 | } |
dreschpe | 0:4bbc531be6e2 | 376 | } |
dreschpe | 0:4bbc531be6e2 | 377 | } |
dreschpe | 0:4bbc531be6e2 | 378 | |
dreschpe | 0:4bbc531be6e2 | 379 | |
dreschpe | 0:4bbc531be6e2 | 380 | |
dreschpe | 0:4bbc531be6e2 | 381 | void C12832_LCD::circle(int x0, int y0, int r, int color) |
dreschpe | 0:4bbc531be6e2 | 382 | { |
dreschpe | 0:4bbc531be6e2 | 383 | |
dreschpe | 0:4bbc531be6e2 | 384 | int draw_x0, draw_y0; |
dreschpe | 0:4bbc531be6e2 | 385 | int draw_x1, draw_y1; |
dreschpe | 0:4bbc531be6e2 | 386 | int draw_x2, draw_y2; |
dreschpe | 0:4bbc531be6e2 | 387 | int draw_x3, draw_y3; |
dreschpe | 0:4bbc531be6e2 | 388 | int draw_x4, draw_y4; |
dreschpe | 0:4bbc531be6e2 | 389 | int draw_x5, draw_y5; |
dreschpe | 0:4bbc531be6e2 | 390 | int draw_x6, draw_y6; |
dreschpe | 0:4bbc531be6e2 | 391 | int draw_x7, draw_y7; |
dreschpe | 0:4bbc531be6e2 | 392 | int xx, yy; |
dreschpe | 0:4bbc531be6e2 | 393 | int di; |
dreschpe | 0:4bbc531be6e2 | 394 | //WindowMax(); |
dreschpe | 0:4bbc531be6e2 | 395 | if (r == 0) { /* no radius */ |
dreschpe | 0:4bbc531be6e2 | 396 | return; |
dreschpe | 0:4bbc531be6e2 | 397 | } |
dreschpe | 0:4bbc531be6e2 | 398 | |
dreschpe | 0:4bbc531be6e2 | 399 | draw_x0 = draw_x1 = x0; |
dreschpe | 0:4bbc531be6e2 | 400 | draw_y0 = draw_y1 = y0 + r; |
dreschpe | 0:4bbc531be6e2 | 401 | if (draw_y0 < height()) { |
dreschpe | 0:4bbc531be6e2 | 402 | pixel(draw_x0, draw_y0, color); /* 90 degree */ |
dreschpe | 0:4bbc531be6e2 | 403 | } |
dreschpe | 0:4bbc531be6e2 | 404 | |
dreschpe | 0:4bbc531be6e2 | 405 | draw_x2 = draw_x3 = x0; |
dreschpe | 0:4bbc531be6e2 | 406 | draw_y2 = draw_y3 = y0 - r; |
dreschpe | 0:4bbc531be6e2 | 407 | if (draw_y2 >= 0) { |
dreschpe | 0:4bbc531be6e2 | 408 | pixel(draw_x2, draw_y2, color); /* 270 degree */ |
dreschpe | 0:4bbc531be6e2 | 409 | } |
dreschpe | 0:4bbc531be6e2 | 410 | |
dreschpe | 0:4bbc531be6e2 | 411 | draw_x4 = draw_x6 = x0 + r; |
dreschpe | 0:4bbc531be6e2 | 412 | draw_y4 = draw_y6 = y0; |
dreschpe | 0:4bbc531be6e2 | 413 | if (draw_x4 < width()) { |
dreschpe | 0:4bbc531be6e2 | 414 | pixel(draw_x4, draw_y4, color); /* 0 degree */ |
dreschpe | 0:4bbc531be6e2 | 415 | } |
dreschpe | 0:4bbc531be6e2 | 416 | |
dreschpe | 0:4bbc531be6e2 | 417 | draw_x5 = draw_x7 = x0 - r; |
dreschpe | 0:4bbc531be6e2 | 418 | draw_y5 = draw_y7 = y0; |
dreschpe | 0:4bbc531be6e2 | 419 | if (draw_x5>=0) { |
dreschpe | 0:4bbc531be6e2 | 420 | pixel(draw_x5, draw_y5, color); /* 180 degree */ |
dreschpe | 0:4bbc531be6e2 | 421 | } |
dreschpe | 0:4bbc531be6e2 | 422 | |
dreschpe | 0:4bbc531be6e2 | 423 | if (r == 1) { |
dreschpe | 0:4bbc531be6e2 | 424 | return; |
dreschpe | 0:4bbc531be6e2 | 425 | } |
dreschpe | 0:4bbc531be6e2 | 426 | |
dreschpe | 0:4bbc531be6e2 | 427 | di = 3 - 2*r; |
dreschpe | 0:4bbc531be6e2 | 428 | xx = 0; |
dreschpe | 0:4bbc531be6e2 | 429 | yy = r; |
dreschpe | 0:4bbc531be6e2 | 430 | while (xx < yy) { |
dreschpe | 0:4bbc531be6e2 | 431 | |
dreschpe | 0:4bbc531be6e2 | 432 | if (di < 0) { |
dreschpe | 0:4bbc531be6e2 | 433 | di += 4*xx + 6; |
dreschpe | 0:4bbc531be6e2 | 434 | } else { |
dreschpe | 0:4bbc531be6e2 | 435 | di += 4*(xx - yy) + 10; |
dreschpe | 0:4bbc531be6e2 | 436 | yy--; |
dreschpe | 0:4bbc531be6e2 | 437 | draw_y0--; |
dreschpe | 0:4bbc531be6e2 | 438 | draw_y1--; |
dreschpe | 0:4bbc531be6e2 | 439 | draw_y2++; |
dreschpe | 0:4bbc531be6e2 | 440 | draw_y3++; |
dreschpe | 0:4bbc531be6e2 | 441 | draw_x4--; |
dreschpe | 0:4bbc531be6e2 | 442 | draw_x5++; |
dreschpe | 0:4bbc531be6e2 | 443 | draw_x6--; |
dreschpe | 0:4bbc531be6e2 | 444 | draw_x7++; |
dreschpe | 0:4bbc531be6e2 | 445 | } |
dreschpe | 0:4bbc531be6e2 | 446 | xx++; |
dreschpe | 0:4bbc531be6e2 | 447 | draw_x0++; |
dreschpe | 0:4bbc531be6e2 | 448 | draw_x1--; |
dreschpe | 0:4bbc531be6e2 | 449 | draw_x2++; |
dreschpe | 0:4bbc531be6e2 | 450 | draw_x3--; |
dreschpe | 0:4bbc531be6e2 | 451 | draw_y4++; |
dreschpe | 0:4bbc531be6e2 | 452 | draw_y5++; |
dreschpe | 0:4bbc531be6e2 | 453 | draw_y6--; |
dreschpe | 0:4bbc531be6e2 | 454 | draw_y7--; |
dreschpe | 0:4bbc531be6e2 | 455 | |
dreschpe | 0:4bbc531be6e2 | 456 | if ( (draw_x0 <= width()) && (draw_y0>=0) ) { |
dreschpe | 0:4bbc531be6e2 | 457 | pixel(draw_x0, draw_y0, color); |
dreschpe | 0:4bbc531be6e2 | 458 | } |
dreschpe | 0:4bbc531be6e2 | 459 | |
dreschpe | 0:4bbc531be6e2 | 460 | if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) { |
dreschpe | 0:4bbc531be6e2 | 461 | pixel(draw_x1, draw_y1, color); |
dreschpe | 0:4bbc531be6e2 | 462 | } |
dreschpe | 0:4bbc531be6e2 | 463 | |
dreschpe | 0:4bbc531be6e2 | 464 | if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) { |
dreschpe | 0:4bbc531be6e2 | 465 | pixel(draw_x2, draw_y2, color); |
dreschpe | 0:4bbc531be6e2 | 466 | } |
dreschpe | 0:4bbc531be6e2 | 467 | |
dreschpe | 0:4bbc531be6e2 | 468 | if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) { |
dreschpe | 0:4bbc531be6e2 | 469 | pixel(draw_x3, draw_y3, color); |
dreschpe | 0:4bbc531be6e2 | 470 | } |
dreschpe | 0:4bbc531be6e2 | 471 | |
dreschpe | 0:4bbc531be6e2 | 472 | if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) { |
dreschpe | 0:4bbc531be6e2 | 473 | pixel(draw_x4, draw_y4, color); |
dreschpe | 0:4bbc531be6e2 | 474 | } |
dreschpe | 0:4bbc531be6e2 | 475 | |
dreschpe | 0:4bbc531be6e2 | 476 | if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) { |
dreschpe | 0:4bbc531be6e2 | 477 | pixel(draw_x5, draw_y5, color); |
dreschpe | 0:4bbc531be6e2 | 478 | } |
dreschpe | 0:4bbc531be6e2 | 479 | if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) { |
dreschpe | 0:4bbc531be6e2 | 480 | pixel(draw_x6, draw_y6, color); |
dreschpe | 0:4bbc531be6e2 | 481 | } |
dreschpe | 0:4bbc531be6e2 | 482 | if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) { |
dreschpe | 0:4bbc531be6e2 | 483 | pixel(draw_x7, draw_y7, color); |
dreschpe | 0:4bbc531be6e2 | 484 | } |
dreschpe | 0:4bbc531be6e2 | 485 | } |
dreschpe | 0:4bbc531be6e2 | 486 | return; |
dreschpe | 0:4bbc531be6e2 | 487 | } |
dreschpe | 0:4bbc531be6e2 | 488 | |
dreschpe | 0:4bbc531be6e2 | 489 | void C12832_LCD::fillcircle(int x, int y, int r, int color) |
dreschpe | 0:4bbc531be6e2 | 490 | { |
dreschpe | 0:4bbc531be6e2 | 491 | int i; |
dreschpe | 0:4bbc531be6e2 | 492 | for (i = 0; i <= r; i++) |
dreschpe | 0:4bbc531be6e2 | 493 | circle(x,y,i,color); |
dreschpe | 0:4bbc531be6e2 | 494 | } |
dreschpe | 0:4bbc531be6e2 | 495 | |
dreschpe | 0:4bbc531be6e2 | 496 | void C12832_LCD::setmode(int mode) |
dreschpe | 0:4bbc531be6e2 | 497 | { |
dreschpe | 0:4bbc531be6e2 | 498 | draw_mode = mode; |
dreschpe | 0:4bbc531be6e2 | 499 | } |
dreschpe | 0:4bbc531be6e2 | 500 | |
dreschpe | 0:4bbc531be6e2 | 501 | void C12832_LCD::locate(int x, int y) |
dreschpe | 0:4bbc531be6e2 | 502 | { |
dreschpe | 0:4bbc531be6e2 | 503 | char_x = x; |
dreschpe | 0:4bbc531be6e2 | 504 | char_y = y; |
dreschpe | 0:4bbc531be6e2 | 505 | } |
dreschpe | 0:4bbc531be6e2 | 506 | |
dreschpe | 0:4bbc531be6e2 | 507 | |
dreschpe | 0:4bbc531be6e2 | 508 | |
dreschpe | 0:4bbc531be6e2 | 509 | int C12832_LCD::columns() |
dreschpe | 0:4bbc531be6e2 | 510 | { |
dreschpe | 0:4bbc531be6e2 | 511 | return width() / font[1]; |
dreschpe | 0:4bbc531be6e2 | 512 | } |
dreschpe | 0:4bbc531be6e2 | 513 | |
dreschpe | 0:4bbc531be6e2 | 514 | |
dreschpe | 0:4bbc531be6e2 | 515 | |
dreschpe | 0:4bbc531be6e2 | 516 | int C12832_LCD::rows() |
dreschpe | 0:4bbc531be6e2 | 517 | { |
dreschpe | 0:4bbc531be6e2 | 518 | return height() / font[2]; |
dreschpe | 0:4bbc531be6e2 | 519 | } |
dreschpe | 0:4bbc531be6e2 | 520 | |
dreschpe | 0:4bbc531be6e2 | 521 | |
dreschpe | 0:4bbc531be6e2 | 522 | |
dreschpe | 0:4bbc531be6e2 | 523 | int C12832_LCD::_putc(int value) |
dreschpe | 0:4bbc531be6e2 | 524 | { |
dreschpe | 0:4bbc531be6e2 | 525 | if (value == '\n') { // new line |
dreschpe | 0:4bbc531be6e2 | 526 | char_x = 0; |
dreschpe | 0:4bbc531be6e2 | 527 | char_y = char_y + font[2]; |
dreschpe | 0:4bbc531be6e2 | 528 | if (char_y >= height() - font[2]) { |
dreschpe | 0:4bbc531be6e2 | 529 | char_y = 0; |
dreschpe | 0:4bbc531be6e2 | 530 | } |
dreschpe | 0:4bbc531be6e2 | 531 | } else { |
dreschpe | 0:4bbc531be6e2 | 532 | character(char_x, char_y, value); |
dreschpe | 0:4bbc531be6e2 | 533 | } |
dreschpe | 0:4bbc531be6e2 | 534 | return value; |
dreschpe | 0:4bbc531be6e2 | 535 | } |
dreschpe | 0:4bbc531be6e2 | 536 | |
dreschpe | 0:4bbc531be6e2 | 537 | void C12832_LCD::character(int x, int y, int c) |
dreschpe | 0:4bbc531be6e2 | 538 | { |
dreschpe | 0:4bbc531be6e2 | 539 | unsigned int hor,vert,offset,bpl,j,i,b; |
dreschpe | 0:4bbc531be6e2 | 540 | unsigned char* zeichen; |
dreschpe | 0:4bbc531be6e2 | 541 | unsigned char z,w; |
dreschpe | 0:4bbc531be6e2 | 542 | |
dreschpe | 0:4bbc531be6e2 | 543 | if ((c < 31) || (c > 127)) return; // test char range |
dreschpe | 0:4bbc531be6e2 | 544 | |
dreschpe | 0:4bbc531be6e2 | 545 | // read font parameter from start of array |
dreschpe | 0:4bbc531be6e2 | 546 | offset = font[0]; // bytes / char |
dreschpe | 0:4bbc531be6e2 | 547 | hor = font[1]; // get hor size of font |
dreschpe | 0:4bbc531be6e2 | 548 | vert = font[2]; // get vert size of font |
dreschpe | 0:4bbc531be6e2 | 549 | bpl = font[3]; // bytes per line |
dreschpe | 0:4bbc531be6e2 | 550 | |
dreschpe | 0:4bbc531be6e2 | 551 | if (char_x + hor > width()) { |
dreschpe | 0:4bbc531be6e2 | 552 | char_x = 0; |
dreschpe | 0:4bbc531be6e2 | 553 | char_y = char_y + vert; |
dreschpe | 0:4bbc531be6e2 | 554 | if (char_y >= height() - font[2]) { |
dreschpe | 0:4bbc531be6e2 | 555 | char_y = 0; |
dreschpe | 0:4bbc531be6e2 | 556 | } |
dreschpe | 0:4bbc531be6e2 | 557 | } |
dreschpe | 0:4bbc531be6e2 | 558 | |
dreschpe | 0:4bbc531be6e2 | 559 | zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap |
dreschpe | 0:4bbc531be6e2 | 560 | w = zeichen[0]; // width of actual char |
dreschpe | 0:4bbc531be6e2 | 561 | // construct the char into the buffer |
dreschpe | 0:4bbc531be6e2 | 562 | for (j=0; j<vert; j++) { // vert line |
dreschpe | 0:4bbc531be6e2 | 563 | for (i=0; i<hor; i++) { // horz line |
dreschpe | 0:4bbc531be6e2 | 564 | z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; |
dreschpe | 0:4bbc531be6e2 | 565 | b = 1 << (j & 0x07); |
dreschpe | 0:4bbc531be6e2 | 566 | if (( z & b ) == 0x00) { |
dreschpe | 0:4bbc531be6e2 | 567 | pixel(x+i,y+j,0); |
dreschpe | 0:4bbc531be6e2 | 568 | } else { |
dreschpe | 0:4bbc531be6e2 | 569 | pixel(x+i,y+j,1); |
dreschpe | 0:4bbc531be6e2 | 570 | } |
dreschpe | 0:4bbc531be6e2 | 571 | |
dreschpe | 0:4bbc531be6e2 | 572 | } |
dreschpe | 0:4bbc531be6e2 | 573 | } |
dreschpe | 0:4bbc531be6e2 | 574 | |
dreschpe | 0:4bbc531be6e2 | 575 | char_x += w; |
dreschpe | 0:4bbc531be6e2 | 576 | } |
dreschpe | 0:4bbc531be6e2 | 577 | |
dreschpe | 0:4bbc531be6e2 | 578 | |
dreschpe | 0:4bbc531be6e2 | 579 | void C12832_LCD::set_font(unsigned char* f) |
dreschpe | 0:4bbc531be6e2 | 580 | { |
dreschpe | 0:4bbc531be6e2 | 581 | font = f; |
dreschpe | 0:4bbc531be6e2 | 582 | } |
dreschpe | 0:4bbc531be6e2 | 583 | |
dreschpe | 0:4bbc531be6e2 | 584 | |
dreschpe | 0:4bbc531be6e2 | 585 |