EI2I_4_projet_1_2017-2018 / Mbed 2 deprecated Main_V3_Old

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Dependencies:   mbed

Fork of Main_V1_1 by EI2I_4_projet_1_2017-2018

ssd1306.cpp@6:f552ca0f5165, 2017-12-18 (annotated)

Committer:
ramialjed
Date:
Mon Dec 18 14:00:21 2017 +0000
Revision:
6:f552ca0f5165
je suis booo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ramialjed 6:f552ca0f5165 1
ramialjed 6:f552ca0f5165 2 #include "mbed.h"
ramialjed 6:f552ca0f5165 3 #include "ssd1306.h"
ramialjed 6:f552ca0f5165 4
ramialjed 6:f552ca0f5165 5 #include <stdarg.h>
ramialjed 6:f552ca0f5165 6
ramialjed 6:f552ca0f5165 7 #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
ramialjed 6:f552ca0f5165 8
ramialjed 6:f552ca0f5165 9 SSD1306::SSD1306(PinName cs, PinName rs, PinName dc, PinName clk, PinName data)
ramialjed 6:f552ca0f5165 10 : _spi(data, NC, clk),
ramialjed 6:f552ca0f5165 11 _cs(cs),
ramialjed 6:f552ca0f5165 12 _reset(rs),
ramialjed 6:f552ca0f5165 13 _dc(dc),
ramialjed 6:f552ca0f5165 14 _cursor_x(0),
ramialjed 6:f552ca0f5165 15 _cursor_y(0)
ramialjed 6:f552ca0f5165 16 {
ramialjed 6:f552ca0f5165 17 }
ramialjed 6:f552ca0f5165 18
ramialjed 6:f552ca0f5165 19 void SSD1306::off()
ramialjed 6:f552ca0f5165 20 {
ramialjed 6:f552ca0f5165 21 _send_command(0xAE);
ramialjed 6:f552ca0f5165 22 }
ramialjed 6:f552ca0f5165 23
ramialjed 6:f552ca0f5165 24 void SSD1306::on()
ramialjed 6:f552ca0f5165 25 {
ramialjed 6:f552ca0f5165 26 _send_command(0xAF);
ramialjed 6:f552ca0f5165 27 }
ramialjed 6:f552ca0f5165 28
ramialjed 6:f552ca0f5165 29 void SSD1306::sleep()
ramialjed 6:f552ca0f5165 30 {
ramialjed 6:f552ca0f5165 31 _send_command(0xAE);
ramialjed 6:f552ca0f5165 32 }
ramialjed 6:f552ca0f5165 33
ramialjed 6:f552ca0f5165 34 void SSD1306::wake()
ramialjed 6:f552ca0f5165 35 {
ramialjed 6:f552ca0f5165 36 _send_command(0xAF);
ramialjed 6:f552ca0f5165 37 }
ramialjed 6:f552ca0f5165 38
ramialjed 6:f552ca0f5165 39 void SSD1306::set_inverse(unsigned char value)
ramialjed 6:f552ca0f5165 40 {
ramialjed 6:f552ca0f5165 41 _send_command(value ? 0xA7 : 0xA6);
ramialjed 6:f552ca0f5165 42 }
ramialjed 6:f552ca0f5165 43
ramialjed 6:f552ca0f5165 44 void SSD1306::set_display_offset(unsigned char value)
ramialjed 6:f552ca0f5165 45 {
ramialjed 6:f552ca0f5165 46 _send_command(0xD3);
ramialjed 6:f552ca0f5165 47 _send_command(value & 0x3F);
ramialjed 6:f552ca0f5165 48 }
ramialjed 6:f552ca0f5165 49
ramialjed 6:f552ca0f5165 50 void SSD1306::set_contrast(unsigned char value)
ramialjed 6:f552ca0f5165 51 {
ramialjed 6:f552ca0f5165 52 _send_command(0x81);
ramialjed 6:f552ca0f5165 53 _send_command(value);
ramialjed 6:f552ca0f5165 54 }
ramialjed 6:f552ca0f5165 55
ramialjed 6:f552ca0f5165 56 void SSD1306::set_display_start_line(unsigned char value)
ramialjed 6:f552ca0f5165 57 {
ramialjed 6:f552ca0f5165 58 _send_command(0x40 | value);
ramialjed 6:f552ca0f5165 59 }
ramialjed 6:f552ca0f5165 60
ramialjed 6:f552ca0f5165 61 void SSD1306::set_segment_remap(unsigned char value)
ramialjed 6:f552ca0f5165 62 {
ramialjed 6:f552ca0f5165 63 _send_command(value ? 0xA1 : 0xA0);
ramialjed 6:f552ca0f5165 64 }
ramialjed 6:f552ca0f5165 65
ramialjed 6:f552ca0f5165 66 void SSD1306::set_multiplex_ratio(unsigned char value)
ramialjed 6:f552ca0f5165 67 {
ramialjed 6:f552ca0f5165 68 _send_command(0xA8);
ramialjed 6:f552ca0f5165 69 _send_command(value & 0x3F);
ramialjed 6:f552ca0f5165 70 }
ramialjed 6:f552ca0f5165 71
ramialjed 6:f552ca0f5165 72 void SSD1306::set_com_output_scan_direction(unsigned char value)
ramialjed 6:f552ca0f5165 73 {
ramialjed 6:f552ca0f5165 74 _send_command(value ? 0xC8 : 0xC0);
ramialjed 6:f552ca0f5165 75 }
ramialjed 6:f552ca0f5165 76
ramialjed 6:f552ca0f5165 77 void SSD1306::set_com_pins_hardware_configuration(unsigned char sequential, unsigned char lr_remap)
ramialjed 6:f552ca0f5165 78 {
ramialjed 6:f552ca0f5165 79 _send_command(0xDA);
ramialjed 6:f552ca0f5165 80 _send_command(0x02 | ((sequential & 1) << 4) | ((lr_remap & 1) << 5));
ramialjed 6:f552ca0f5165 81 }
ramialjed 6:f552ca0f5165 82
ramialjed 6:f552ca0f5165 83 void SSD1306::start_horizontal_scroll(unsigned char direction, unsigned char start, unsigned char end, unsigned char interval)
ramialjed 6:f552ca0f5165 84 {
ramialjed 6:f552ca0f5165 85 _send_command(direction ? 0x27 : 0x26);
ramialjed 6:f552ca0f5165 86 _send_command(0x00);
ramialjed 6:f552ca0f5165 87 _send_command(start & 0x07);
ramialjed 6:f552ca0f5165 88 switch (interval) {
ramialjed 6:f552ca0f5165 89 case 2: _send_command(0x07); break; // 111b
ramialjed 6:f552ca0f5165 90 case 3: _send_command(0x04); break; // 100b
ramialjed 6:f552ca0f5165 91 case 4: _send_command(0x05); break; // 101b
ramialjed 6:f552ca0f5165 92 case 5: _send_command(0x00); break; // 000b
ramialjed 6:f552ca0f5165 93 case 25: _send_command(0x06); break; // 110b
ramialjed 6:f552ca0f5165 94 case 64: _send_command(0x01); break; // 001b
ramialjed 6:f552ca0f5165 95 case 128: _send_command(0x02); break; // 010b
ramialjed 6:f552ca0f5165 96 case 256: _send_command(0x03); break; // 011b
ramialjed 6:f552ca0f5165 97 default:
ramialjed 6:f552ca0f5165 98 // default to 2 frame interval
ramialjed 6:f552ca0f5165 99 _send_command(0x07); break;
ramialjed 6:f552ca0f5165 100 }
ramialjed 6:f552ca0f5165 101 _send_command(end & 0x07);
ramialjed 6:f552ca0f5165 102 _send_command(0x00);
ramialjed 6:f552ca0f5165 103 _send_command(0xFF);
ramialjed 6:f552ca0f5165 104
ramialjed 6:f552ca0f5165 105 // activate scroll
ramialjed 6:f552ca0f5165 106 _send_command(0x2F);
ramialjed 6:f552ca0f5165 107 }
ramialjed 6:f552ca0f5165 108
ramialjed 6:f552ca0f5165 109 void SSD1306::start_vertical_and_horizontal_scroll(unsigned char direction, unsigned char start, unsigned char end, unsigned char interval, unsigned char vertical_offset)
ramialjed 6:f552ca0f5165 110 {
ramialjed 6:f552ca0f5165 111 _send_command(direction ? 0x2A : 0x29);
ramialjed 6:f552ca0f5165 112 _send_command(0x00);
ramialjed 6:f552ca0f5165 113 _send_command(start & 0x07);
ramialjed 6:f552ca0f5165 114 switch (interval) {
ramialjed 6:f552ca0f5165 115 case 2: _send_command(0x07); break; // 111b
ramialjed 6:f552ca0f5165 116 case 3: _send_command(0x04); break; // 100b
ramialjed 6:f552ca0f5165 117 case 4: _send_command(0x05); break; // 101b
ramialjed 6:f552ca0f5165 118 case 5: _send_command(0x00); break; // 000b
ramialjed 6:f552ca0f5165 119 case 25: _send_command(0x06); break; // 110b
ramialjed 6:f552ca0f5165 120 case 64: _send_command(0x01); break; // 001b
ramialjed 6:f552ca0f5165 121 case 128: _send_command(0x02); break; // 010b
ramialjed 6:f552ca0f5165 122 case 256: _send_command(0x03); break; // 011b
ramialjed 6:f552ca0f5165 123 default:
ramialjed 6:f552ca0f5165 124 // default to 2 frame interval
ramialjed 6:f552ca0f5165 125 _send_command(0x07); break;
ramialjed 6:f552ca0f5165 126 }
ramialjed 6:f552ca0f5165 127 _send_command(end & 0x07);
ramialjed 6:f552ca0f5165 128 _send_command(vertical_offset);
ramialjed 6:f552ca0f5165 129
ramialjed 6:f552ca0f5165 130 // activate scroll
ramialjed 6:f552ca0f5165 131 _send_command(0x2F);
ramialjed 6:f552ca0f5165 132 }
ramialjed 6:f552ca0f5165 133
ramialjed 6:f552ca0f5165 134 void SSD1306::stop_scroll()
ramialjed 6:f552ca0f5165 135 {
ramialjed 6:f552ca0f5165 136 // all scroll configurations are removed from the display when executing this command.
ramialjed 6:f552ca0f5165 137 _send_command(0x2E);
ramialjed 6:f552ca0f5165 138 }
ramialjed 6:f552ca0f5165 139
ramialjed 6:f552ca0f5165 140 void SSD1306::pam_set_start_address(unsigned char address)
ramialjed 6:f552ca0f5165 141 {
ramialjed 6:f552ca0f5165 142 // "Set Lower Column Start Address for Page Addressing Mode"
ramialjed 6:f552ca0f5165 143 _send_command(address & 0x0F);
ramialjed 6:f552ca0f5165 144
ramialjed 6:f552ca0f5165 145 // "Set Higher Column Start Address for Page Addressing Mode"
ramialjed 6:f552ca0f5165 146 _send_command((address << 4) & 0x0F);
ramialjed 6:f552ca0f5165 147 }
ramialjed 6:f552ca0f5165 148
ramialjed 6:f552ca0f5165 149 void SSD1306::set_memory_addressing_mode(unsigned char mode)
ramialjed 6:f552ca0f5165 150 {
ramialjed 6:f552ca0f5165 151 _send_command(0x20);
ramialjed 6:f552ca0f5165 152 _send_command(mode & 0x3);
ramialjed 6:f552ca0f5165 153 }
ramialjed 6:f552ca0f5165 154
ramialjed 6:f552ca0f5165 155 void SSD1306::hv_set_column_address(unsigned char start, unsigned char end)
ramialjed 6:f552ca0f5165 156 {
ramialjed 6:f552ca0f5165 157 _send_command(0x21);
ramialjed 6:f552ca0f5165 158 _send_command(start & 0x7F);
ramialjed 6:f552ca0f5165 159 _send_command(end & 0x7F);
ramialjed 6:f552ca0f5165 160 }
ramialjed 6:f552ca0f5165 161
ramialjed 6:f552ca0f5165 162 void SSD1306::hv_set_page_address(unsigned char start, unsigned char end)
ramialjed 6:f552ca0f5165 163 {
ramialjed 6:f552ca0f5165 164 _send_command(0x22);
ramialjed 6:f552ca0f5165 165 _send_command(start & 0x07);
ramialjed 6:f552ca0f5165 166 _send_command(end & 0x07);
ramialjed 6:f552ca0f5165 167 }
ramialjed 6:f552ca0f5165 168
ramialjed 6:f552ca0f5165 169 void SSD1306::pam_set_page_start(unsigned char address)
ramialjed 6:f552ca0f5165 170 {
ramialjed 6:f552ca0f5165 171 _send_command(0xB0 | (address & 0x07));
ramialjed 6:f552ca0f5165 172 }
ramialjed 6:f552ca0f5165 173
ramialjed 6:f552ca0f5165 174 void SSD1306::set_display_clock_ratio_and_frequency(unsigned char ratio, unsigned char frequency)
ramialjed 6:f552ca0f5165 175 {
ramialjed 6:f552ca0f5165 176 _send_command(0xD5);
ramialjed 6:f552ca0f5165 177 _send_command((ratio & 0x0F) | ((frequency & 0x0F) << 4));
ramialjed 6:f552ca0f5165 178 }
ramialjed 6:f552ca0f5165 179
ramialjed 6:f552ca0f5165 180 void SSD1306::set_precharge_period(unsigned char phase1, unsigned char phase2)
ramialjed 6:f552ca0f5165 181 {
ramialjed 6:f552ca0f5165 182 _send_command(0xD9);
ramialjed 6:f552ca0f5165 183 _send_command((phase1 & 0x0F) | ((phase2 & 0x0F ) << 4));
ramialjed 6:f552ca0f5165 184 }
ramialjed 6:f552ca0f5165 185
ramialjed 6:f552ca0f5165 186 void SSD1306::set_vcomh_deselect_level(unsigned char level)
ramialjed 6:f552ca0f5165 187 {
ramialjed 6:f552ca0f5165 188 _send_command(0xDB);
ramialjed 6:f552ca0f5165 189 _send_command((level & 0x03) << 4);
ramialjed 6:f552ca0f5165 190 }
ramialjed 6:f552ca0f5165 191
ramialjed 6:f552ca0f5165 192 void SSD1306::nop()
ramialjed 6:f552ca0f5165 193 {
ramialjed 6:f552ca0f5165 194 _send_command(0xE3);
ramialjed 6:f552ca0f5165 195 }
ramialjed 6:f552ca0f5165 196
ramialjed 6:f552ca0f5165 197 void SSD1306::set_charge_pump_enable(unsigned char enable)
ramialjed 6:f552ca0f5165 198 {
ramialjed 6:f552ca0f5165 199 _send_command(0x8D);
ramialjed 6:f552ca0f5165 200 _send_command(enable ? 0x14 : 0x10);
ramialjed 6:f552ca0f5165 201 }
ramialjed 6:f552ca0f5165 202
ramialjed 6:f552ca0f5165 203 void SSD1306::initialise()
ramialjed 6:f552ca0f5165 204 {
ramialjed 6:f552ca0f5165 205 // Init
ramialjed 6:f552ca0f5165 206 _reset = 1;
ramialjed 6:f552ca0f5165 207 wait(0.01);
ramialjed 6:f552ca0f5165 208 _reset = 0;
ramialjed 6:f552ca0f5165 209 wait(0.10);
ramialjed 6:f552ca0f5165 210 _reset = 1;
ramialjed 6:f552ca0f5165 211
ramialjed 6:f552ca0f5165 212 off();
ramialjed 6:f552ca0f5165 213
ramialjed 6:f552ca0f5165 214 set_display_clock_ratio_and_frequency(0, 8);
ramialjed 6:f552ca0f5165 215 set_multiplex_ratio(0x3F); // 1/64 duty
ramialjed 6:f552ca0f5165 216 set_precharge_period(0xF, 0x01);
ramialjed 6:f552ca0f5165 217 set_display_offset(0);
ramialjed 6:f552ca0f5165 218 set_display_start_line(0);
ramialjed 6:f552ca0f5165 219 set_charge_pump_enable(1);
ramialjed 6:f552ca0f5165 220 set_memory_addressing_mode(0); // horizontal addressing mode; across then down
ramialjed 6:f552ca0f5165 221 set_segment_remap(1);
ramialjed 6:f552ca0f5165 222 set_com_output_scan_direction(1);
ramialjed 6:f552ca0f5165 223 set_com_pins_hardware_configuration(1, 0);
ramialjed 6:f552ca0f5165 224 set_contrast(0xFF);
ramialjed 6:f552ca0f5165 225 set_vcomh_deselect_level(1);
ramialjed 6:f552ca0f5165 226
ramialjed 6:f552ca0f5165 227 wake();
ramialjed 6:f552ca0f5165 228 set_inverse(0);
ramialjed 6:f552ca0f5165 229
ramialjed 6:f552ca0f5165 230 hv_set_column_address(0, 127);
ramialjed 6:f552ca0f5165 231 hv_set_page_address(0, 7);
ramialjed 6:f552ca0f5165 232
ramialjed 6:f552ca0f5165 233 pam_set_start_address(0);
ramialjed 6:f552ca0f5165 234 pam_set_page_start(0);
ramialjed 6:f552ca0f5165 235
ramialjed 6:f552ca0f5165 236 // set_precharge_period(2, 2);
ramialjed 6:f552ca0f5165 237 }
ramialjed 6:f552ca0f5165 238
ramialjed 6:f552ca0f5165 239 void SSD1306::update()
ramialjed 6:f552ca0f5165 240 {
ramialjed 6:f552ca0f5165 241 hv_set_column_address(0, 127);
ramialjed 6:f552ca0f5165 242 hv_set_page_address(0, 7);
ramialjed 6:f552ca0f5165 243
ramialjed 6:f552ca0f5165 244 for (int i = 0; i < 1024; i++)
ramialjed 6:f552ca0f5165 245 _send_data(_screen[i]);
ramialjed 6:f552ca0f5165 246 }
ramialjed 6:f552ca0f5165 247
ramialjed 6:f552ca0f5165 248 void SSD1306::drawBitmap(int x, int y,
ramialjed 6:f552ca0f5165 249 const unsigned char *bitmap, int w, int h, int color) {
ramialjed 6:f552ca0f5165 250 int16_t i, j, byteWidth = (w + 7) / 8;
ramialjed 6:f552ca0f5165 251
ramialjed 6:f552ca0f5165 252 for(j=0; j<h; j++) {
ramialjed 6:f552ca0f5165 253 for(i=0; i<w; i++ ) {
ramialjed 6:f552ca0f5165 254 if(pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
ramialjed 6:f552ca0f5165 255 color? set_pixel(x+i, y+j): clear_pixel(x+i, y+j);
ramialjed 6:f552ca0f5165 256 }
ramialjed 6:f552ca0f5165 257 }
ramialjed 6:f552ca0f5165 258 }
ramialjed 6:f552ca0f5165 259 }
ramialjed 6:f552ca0f5165 260
ramialjed 6:f552ca0f5165 261 void SSD1306::set_pixel(int x, int y)
ramialjed 6:f552ca0f5165 262 {
ramialjed 6:f552ca0f5165 263 if (x >= SSD1306_LCDWIDTH || y >= SSD1306_LCDHEIGHT) return;
ramialjed 6:f552ca0f5165 264
ramialjed 6:f552ca0f5165 265 _screen[x + (y / 8) * 128] |= 1 << (y % 8);
ramialjed 6:f552ca0f5165 266 }
ramialjed 6:f552ca0f5165 267
ramialjed 6:f552ca0f5165 268 void SSD1306::clear_pixel(int x, int y)
ramialjed 6:f552ca0f5165 269 {
ramialjed 6:f552ca0f5165 270 if (x >= SSD1306_LCDWIDTH || y >= SSD1306_LCDHEIGHT) return;
ramialjed 6:f552ca0f5165 271
ramialjed 6:f552ca0f5165 272 _screen[x + (y / 8) * 128] &= ~(1 << (y % 8));
ramialjed 6:f552ca0f5165 273 }
ramialjed 6:f552ca0f5165 274
ramialjed 6:f552ca0f5165 275 void SSD1306::line(int x0, int y0, int x1, int y1) {
ramialjed 6:f552ca0f5165 276 int steep = abs(y1 - y0) > abs(x1 - x0);
ramialjed 6:f552ca0f5165 277 int t;
ramialjed 6:f552ca0f5165 278
ramialjed 6:f552ca0f5165 279 if (steep) {
ramialjed 6:f552ca0f5165 280 t = x0; x0 = y0; y0 = t;
ramialjed 6:f552ca0f5165 281 t = x1; x1 = y1; y1 = t;
ramialjed 6:f552ca0f5165 282 }
ramialjed 6:f552ca0f5165 283
ramialjed 6:f552ca0f5165 284 if (x0 > x1) {
ramialjed 6:f552ca0f5165 285 t = x0; x0 = x1; x1 = t;
ramialjed 6:f552ca0f5165 286 t = y0; y0 = y1; y1 = t;
ramialjed 6:f552ca0f5165 287 }
ramialjed 6:f552ca0f5165 288
ramialjed 6:f552ca0f5165 289 int dx, dy;
ramialjed 6:f552ca0f5165 290
ramialjed 6:f552ca0f5165 291 dx = x1 - x0;
ramialjed 6:f552ca0f5165 292 dy = abs(y1 - y0);
ramialjed 6:f552ca0f5165 293
ramialjed 6:f552ca0f5165 294 int err = dx / 2;
ramialjed 6:f552ca0f5165 295 int ystep;
ramialjed 6:f552ca0f5165 296
ramialjed 6:f552ca0f5165 297 if (y0 < y1) {
ramialjed 6:f552ca0f5165 298 ystep = 1;
ramialjed 6:f552ca0f5165 299 } else {
ramialjed 6:f552ca0f5165 300 ystep = -1;}
ramialjed 6:f552ca0f5165 301
ramialjed 6:f552ca0f5165 302 for (; x0<x1; x0++) {
ramialjed 6:f552ca0f5165 303 if (steep) {
ramialjed 6:f552ca0f5165 304 set_pixel(y0, x0);
ramialjed 6:f552ca0f5165 305 } else {
ramialjed 6:f552ca0f5165 306 set_pixel(x0, y0);
ramialjed 6:f552ca0f5165 307 }
ramialjed 6:f552ca0f5165 308 err -= dy;
ramialjed 6:f552ca0f5165 309 if (err < 0) {
ramialjed 6:f552ca0f5165 310 y0 += ystep;
ramialjed 6:f552ca0f5165 311 err += dx;
ramialjed 6:f552ca0f5165 312 }
ramialjed 6:f552ca0f5165 313 }
ramialjed 6:f552ca0f5165 314 }
ramialjed 6:f552ca0f5165 315
ramialjed 6:f552ca0f5165 316 void SSD1306::set_font(unsigned char *font, unsigned int width)
ramialjed 6:f552ca0f5165 317 {
ramialjed 6:f552ca0f5165 318 _console_font_data = font;
ramialjed 6:f552ca0f5165 319 _console_font_width = width;
ramialjed 6:f552ca0f5165 320 }
ramialjed 6:f552ca0f5165 321
ramialjed 6:f552ca0f5165 322 void SSD1306::set_double_height_text(unsigned int double_height)
ramialjed 6:f552ca0f5165 323 {
ramialjed 6:f552ca0f5165 324 _double_height_text = double_height;
ramialjed 6:f552ca0f5165 325 }
ramialjed 6:f552ca0f5165 326
ramialjed 6:f552ca0f5165 327 void SSD1306::putc(unsigned char c)
ramialjed 6:f552ca0f5165 328 {
ramialjed 6:f552ca0f5165 329 while (_cursor_x >= (128 / _console_font_width))
ramialjed 6:f552ca0f5165 330 {
ramialjed 6:f552ca0f5165 331 _cursor_x -= (128 / _console_font_width);
ramialjed 6:f552ca0f5165 332 _cursor_y++;
ramialjed 6:f552ca0f5165 333 }
ramialjed 6:f552ca0f5165 334
ramialjed 6:f552ca0f5165 335 while (_cursor_y > 7)
ramialjed 6:f552ca0f5165 336 {
ramialjed 6:f552ca0f5165 337 scroll_up();
ramialjed 6:f552ca0f5165 338 }
ramialjed 6:f552ca0f5165 339
ramialjed 6:f552ca0f5165 340 switch (c)
ramialjed 6:f552ca0f5165 341 {
ramialjed 6:f552ca0f5165 342 case '\n':
ramialjed 6:f552ca0f5165 343 _cursor_y++;
ramialjed 6:f552ca0f5165 344 break;
ramialjed 6:f552ca0f5165 345
ramialjed 6:f552ca0f5165 346 case '\r':
ramialjed 6:f552ca0f5165 347 _cursor_x = 0;
ramialjed 6:f552ca0f5165 348 break;
ramialjed 6:f552ca0f5165 349
ramialjed 6:f552ca0f5165 350 case '\t':
ramialjed 6:f552ca0f5165 351 _cursor_x = (_cursor_x + 4) % 4;
ramialjed 6:f552ca0f5165 352 break;
ramialjed 6:f552ca0f5165 353
ramialjed 6:f552ca0f5165 354 default:
ramialjed 6:f552ca0f5165 355 for (int b = 0; b < _console_font_width; b++)
ramialjed 6:f552ca0f5165 356 {
ramialjed 6:f552ca0f5165 357 _screen[_cursor_x * _console_font_width + _cursor_y * 128 + b] = _console_font_data[(c - FONT_START) * _console_font_width + b];
ramialjed 6:f552ca0f5165 358 }
ramialjed 6:f552ca0f5165 359
ramialjed 6:f552ca0f5165 360 _cursor_x++;
ramialjed 6:f552ca0f5165 361 }
ramialjed 6:f552ca0f5165 362 }
ramialjed 6:f552ca0f5165 363
ramialjed 6:f552ca0f5165 364 void SSD1306::scroll_up()
ramialjed 6:f552ca0f5165 365 {
ramialjed 6:f552ca0f5165 366 for (int y = 1; y <= 7; y++)
ramialjed 6:f552ca0f5165 367 {
ramialjed 6:f552ca0f5165 368 for (int x = 0; x < 128; x++)
ramialjed 6:f552ca0f5165 369 {
ramialjed 6:f552ca0f5165 370 _screen[x + 128 * (y - 1)] = _screen[x + 128 * y];
ramialjed 6:f552ca0f5165 371 }
ramialjed 6:f552ca0f5165 372 }
ramialjed 6:f552ca0f5165 373
ramialjed 6:f552ca0f5165 374 for (int x = 0; x < 128; x++)
ramialjed 6:f552ca0f5165 375 {
ramialjed 6:f552ca0f5165 376 _screen[x + 128 * 7] = 0;
ramialjed 6:f552ca0f5165 377 }
ramialjed 6:f552ca0f5165 378
ramialjed 6:f552ca0f5165 379 _cursor_y--;
ramialjed 6:f552ca0f5165 380 }
ramialjed 6:f552ca0f5165 381
ramialjed 6:f552ca0f5165 382 void SSD1306::printf(const char *format, ...)
ramialjed 6:f552ca0f5165 383 {
ramialjed 6:f552ca0f5165 384 static char buffer[128];
ramialjed 6:f552ca0f5165 385
ramialjed 6:f552ca0f5165 386 va_list args;
ramialjed 6:f552ca0f5165 387 va_start(args, format);
ramialjed 6:f552ca0f5165 388 vsprintf(buffer, format, args);
ramialjed 6:f552ca0f5165 389 va_end(args);
ramialjed 6:f552ca0f5165 390
ramialjed 6:f552ca0f5165 391 char *c = (char *)&buffer;
ramialjed 6:f552ca0f5165 392 while (*c != 0)
ramialjed 6:f552ca0f5165 393 {
ramialjed 6:f552ca0f5165 394 putc(*c++);
ramialjed 6:f552ca0f5165 395 }
ramialjed 6:f552ca0f5165 396 }
ramialjed 6:f552ca0f5165 397
ramialjed 6:f552ca0f5165 398 void SSD1306::clear()
ramialjed 6:f552ca0f5165 399 {
ramialjed 6:f552ca0f5165 400 for (int i = 0; i < 1024; i++)
ramialjed 6:f552ca0f5165 401 _screen[i] = 0;
ramialjed 6:f552ca0f5165 402
ramialjed 6:f552ca0f5165 403 _cursor_x = 0;
ramialjed 6:f552ca0f5165 404 _cursor_y = 0;
ramialjed 6:f552ca0f5165 405 }
ramialjed 6:f552ca0f5165 406
ramialjed 6:f552ca0f5165 407 void SSD1306::_send_command(unsigned char code)
ramialjed 6:f552ca0f5165 408 {
ramialjed 6:f552ca0f5165 409 _cs = 1;
ramialjed 6:f552ca0f5165 410 _dc = 0;
ramialjed 6:f552ca0f5165 411 _cs = 0;
ramialjed 6:f552ca0f5165 412 _spi.write(code);
ramialjed 6:f552ca0f5165 413 _cs = 1;
ramialjed 6:f552ca0f5165 414 }
ramialjed 6:f552ca0f5165 415
ramialjed 6:f552ca0f5165 416 void SSD1306::_send_data(unsigned char value)
ramialjed 6:f552ca0f5165 417 {
ramialjed 6:f552ca0f5165 418 _cs = 1;
ramialjed 6:f552ca0f5165 419 _dc = 1;
ramialjed 6:f552ca0f5165 420 _cs = 0;
ramialjed 6:f552ca0f5165 421 _spi.write(value);
ramialjed 6:f552ca0f5165 422 _cs = 1;
ramialjed 6:f552ca0f5165 423 }