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Code C - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 /* * Project Three Phase Inverter * File: main.c * Author: Okada * * Created on April 6, 2017, 12:13 AM */ #define _XTAL_FREQ 20000000 #include <stdio.h> #include <stdlib.h> #include <xc.h> #include <p18f4431.h> #pragma config OSC = HS #pragma config FCMEN = ON #pragma config IESO = OFF #pragma config DEBUG = OFF #pragma config LVP = OFF #pragma config PWRTEN = ON #pragma config WDTEN = OFF #pragma config WDPS = 2048 #pragma config WINEN = OFF #pragma config MCLRE = ON #pragma config BOREN = ON #pragma config BORV = 42 #pragma config PWMPIN = OFF #pragma config LPOL = HIGH #pragma config HPOL = HIGH #pragma config T1OSCMX = OFF #pragma config STVREN = ON #pragma config CP0 = OFF #pragma config CP1 = OFF #pragma config CPB = OFF #pragma config CPD = OFF #pragma config WRT0 = OFF #pragma config WRT1 = OFF #pragma config WRTC = OFF #pragma config WRTB = OFF #pragma config WRTD = OFF #pragma config EBTR0 = OFF #pragma config EBTR1 = OFF #pragma config EBTRB = OFF //ISR Method - Uncomment only one option at a time #define METHOD1 //#define METHOD2 //AC Frequency - Uncomment only one option at a time //#define One_Hz //#define Twenty_Hz #define Fifty_Hz //#define Two_Hundred_Hz //#define One_KHz //#define Ten_KHz /* * pwm resolution = log((1*FOSC)/Fpwm) / log(2) * pwm resolution = log((20000000/16000) / log(2)) * pwm resolution = 1225 (98% of 2^10.2877) * * So, Sine table max value should be 1225 and it should have 32 entries for 180 degrees */ #define _LCD_FIRST_ROW 0x80 //Move cursor to the 1st row #define _LCD_SECOND_ROW 0xC0 //Move cursor to the 2nd row #define _LCD_THIRD_ROW 0x94 //Move cursor to the 3rd row #define _LCD_FOURTH_ROW 0xD4 //Move cursor to the 4th row #define _LCD_CLEAR 0x01 //Clear display #define _LCD_RETURN_HOME 0x02 //Return cursor to home position, returns a //shifted display to its original position. //Display data RAM is unaffected. #define _LCD_CURSOR_OFF 0x0C //Turn off cursor #define _LCD_UNDERLINE_ON 0x0E //Underline cursor on #define _LCD_BLINK_CURSOR_ON 0x0F //Blink cursor on #define _LCD_MOVE_CURSOR_LEFT 0x10 //Move cursor left without changing //display data RAM #define _LCD_MOVE_CURSOR_RIGHT 0x14 //Move cursor right without changing //display data RAM #define _LCD_TURN_ON 0x0C //Turn Lcd display on #define _LCD_TURN_OFF 0x08 //Turn Lcd display off #define _LCD_SHIFT_LEFT 0x18 //Shift display left without changing //display data RAM #define _LCD_SHIFT_RIGHT 0x1E //Shift display right without changing //display data RAM // LCD module connections #define LCD_RS LATDbits.LATD0 #define LCD_EN LATDbits.LATD1 #define LCD_D4 LATDbits.LATD2 #define LCD_D5 LATDbits.LATD3 #define LCD_D6 LATDbits.LATD4 #define LCD_D7 LATDbits.LATD5 #define LCD_RS_Direction TRISDbits.TRISD0 #define LCD_EN_Direction TRISDbits.TRISD1 #define LCD_D4_Direction TRISDbits.TRISD2 #define LCD_D5_Direction TRISDbits.TRISD3 #define LCD_D6_Direction TRISDbits.TRISD4 #define LCD_D7_Direction TRISDbits.TRISD5 // End LCD module connections #define EN_DELAY 300 #define LCD_STROBE {LCD_EN = 1; __delay_us(EN_DELAY); LCD_EN = 0; __delay_us(EN_DELAY);}; unsigned int sine_table[32] = { //0,9,37,83,144,218,302,394,490,586,678,762,836,897,943,971, //980,971,943,897,836,762,678,586,490,394,302,218,144,83,37,9 0,12,47,103,179,272,378,493,613,732,847,953,1046,1122,1178,1213, 1225,1213,1178,1122,1046,953,847,732,613,493,378,272,179,103,47,12 }; char *text1 = "3P-Inverter"; char *text2 = "Testing..."; char *text3 = "LCD Working"; #ifndef Ten_KHz #ifdef METHOD1 unsigned int TBL_POINTER_NEW = 0; unsigned int TBL_POINTER_OLD = 0; unsigned int TBL_POINTER_SHIFT = 0; unsigned char DUTY_CYCLE[3] = {0, 0, 0}; unsigned int SET_FREQ = 410; #endif #ifdef METHOD2 unsigned int TBL_POINTER_NEW[3] = {0, 0, 0}; unsigned int TBL_POINTER_OLD[3] = {0, 0, 0}; unsigned int TBL_POINTER_SHIFT[3] = {0, 0, 0}; unsigned char DUTY_CYCLE[3] = {0, 0, 0}; unsigned int SET_FREQ = 410; #endif #endif #ifdef Ten_KHz #ifdef METHOD1 unsigned long int TBL_POINTER_NEW = 0; unsigned long int TBL_POINTER_OLD = 0; unsigned long int TBL_POINTER_SHIFT = 0; unsigned char DUTY_CYCLE[3] = {0, 0, 0}; unsigned long int SET_FREQ = 410; #endif #ifdef METHOD2 unsigned long int TBL_POINTER_NEW[3] = {0, 0, 0}; unsigned long int TBL_POINTER_OLD[3] = {0, 0, 0}; unsigned long int TBL_POINTER_SHIFT[3] = {0, 0, 0}; unsigned char DUTY_CYCLE[3] = {0, 0, 0}; unsigned long int SET_FREQ = 410; #endif #endif const char character[] = {6,9,9,6,0,0,0,0}; void __delayX_mSec(unsigned long int mSec); void LCD_Cmd(char out_char); void LCD_Chr(char row, char column, char out_char); void LCD_Chr_Cp(char out_char); void LCD_Init(); void LCD_Out(char row, char col, char *text); void LCD_Out_Cp(char *text); //Timer2 //Prescaler 1:1; Postscaler 1:2; TMR2 Preload = 155; Actual Interrupt Time : 62.4 us, PWM frequency: 16KHz void InitTimer2(){ T2CON = 0x0C; PIE1bits.TMR2IE = 1; PR2 = 155; INTCON = 0xC0; } void interrupt isr(){ if((PIE1bits.TMR2IE) && (PIR1bits.TMR2IF)) { //Enter your code here //Example Calculation for 50Hz AC //SET_FREQ = 65536 / (32 * 5) = 410 //Required AC Frequency = 50 Hz //PWM frequency = 16KHz //Tpwm = 1/16KHz = 62.5us (Timer2 Interrupt Period) //62.5us * 32 * 5 = 10ms (for 180 degrees) //10ms * 2 = 20ms //AC frequency = 1/20ms = 50.0Hz #ifdef METHOD1 //#ifndef Ten_KHz TBL_POINTER_NEW = TBL_POINTER_OLD + SET_FREQ; TBL_POINTER_SHIFT = TBL_POINTER_NEW >> 11; DUTY_CYCLE[0] = TBL_POINTER_SHIFT; DUTY_CYCLE[1] = TBL_POINTER_SHIFT; DUTY_CYCLE[2] = TBL_POINTER_SHIFT; if((DUTY_CYCLE[1] + 21) < 32)DUTY_CYCLE[1] += 21; else DUTY_CYCLE[1] -= 11; if((DUTY_CYCLE[2] + 11) < 32)DUTY_CYCLE[2] += 11; else DUTY_CYCLE[2] -= 21; PDC0L = sine_table[DUTY_CYCLE[0]]; PDC0H = sine_table[DUTY_CYCLE[0]] >> 8; PDC1L = sine_table[DUTY_CYCLE[1]]; PDC1H = sine_table[DUTY_CYCLE[1]] >> 8; PDC2L = sine_table[DUTY_CYCLE[2]]; PDC2H = sine_table[DUTY_CYCLE[2]] >> 8; TBL_POINTER_OLD = TBL_POINTER_NEW; //#endif //#ifdef Ten_KHz //#endif #endif #ifdef METHOD2 //#ifndef Ten_KHz TBL_POINTER_NEW[0] = TBL_POINTER_OLD[0] + SET_FREQ; TBL_POINTER_SHIFT[0] = TBL_POINTER_NEW[0] >> 11; DUTY_CYCLE[0] = TBL_POINTER_SHIFT[0]; PDC0L = sine_table[DUTY_CYCLE[0]]; PDC0H = sine_table[DUTY_CYCLE[0]] >> 8; TBL_POINTER_OLD[0] = TBL_POINTER_NEW[0]; TBL_POINTER_NEW[1] = TBL_POINTER_OLD[1] + SET_FREQ; TBL_POINTER_SHIFT[1] = TBL_POINTER_NEW[1] >> 11; DUTY_CYCLE[1] = TBL_POINTER_SHIFT[1]; if((DUTY_CYCLE[1] + 21) < 32)DUTY_CYCLE[1] += 21; else DUTY_CYCLE[1] -= 11; PDC1L = sine_table[DUTY_CYCLE[1]]; PDC1H = sine_table[DUTY_CYCLE[1]] >> 8; TBL_POINTER_OLD[1] = TBL_POINTER_NEW[1]; TBL_POINTER_NEW[2] = TBL_POINTER_OLD[2] + SET_FREQ; TBL_POINTER_SHIFT[2] = TBL_POINTER_NEW[2] >> 11; DUTY_CYCLE[2] = TBL_POINTER_SHIFT[2]; if((DUTY_CYCLE[2] + 11) < 32)DUTY_CYCLE[2] += 11; else DUTY_CYCLE[2] -= 21; PDC2L = sine_table[DUTY_CYCLE[2]]; PDC2H = sine_table[DUTY_CYCLE[2]] >> 8; TBL_POINTER_OLD[2] = TBL_POINTER_NEW[2]; //#endif //#ifdef Ten_KHz //#endif #endif PIR1bits.TMR2IF = 0; } } void __delayX_mSec(unsigned long int mSec) { while(mSec) { __delay_ms(1); mSec--; } } void LCD_Cmd(char out_char) { LCD_RS = 0; LCD_D4 = (out_char & 0x10)?1:0; LCD_D5 = (out_char & 0x20)?1:0; LCD_D6 = (out_char & 0x40)?1:0; LCD_D7 = (out_char & 0x80)?1:0; LCD_STROBE LCD_D4 = (out_char & 0x01)?1:0; LCD_D5 = (out_char & 0x02)?1:0; LCD_D6 = (out_char & 0x04)?1:0; LCD_D7 = (out_char & 0x08)?1:0; LCD_STROBE if(out_char == 0x01)__delay_ms(2); } void LCD_Chr(char row, char column, char out_char) { switch(row) { case 1: LCD_Cmd(0x80 + (column - 1)); break; case 2: LCD_Cmd(0xC0 + (column - 1)); break; case 3: LCD_Cmd(0x94 + (column - 1)); break; case 4: LCD_Cmd(0xD4 + (column - 1)); break; }; LCD_RS = 1; LCD_D4 = (out_char & 0x10)?1:0; LCD_D5 = (out_char & 0x20)?1:0; LCD_D6 = (out_char & 0x40)?1:0; LCD_D7 = (out_char & 0x80)?1:0; LCD_STROBE LCD_D4 = (out_char & 0x01)?1:0; LCD_D5 = (out_char & 0x02)?1:0; LCD_D6 = (out_char & 0x04)?1:0; LCD_D7 = (out_char & 0x08)?1:0; LCD_STROBE } void LCD_Chr_Cp(char out_char) { LCD_RS = 1; LCD_D4 = (out_char & 0x10)?1:0; LCD_D5 = (out_char & 0x20)?1:0; LCD_D6 = (out_char & 0x40)?1:0; LCD_D7 = (out_char & 0x80)?1:0; LCD_STROBE LCD_D4 = (out_char & 0x01)?1:0; LCD_D5 = (out_char & 0x02)?1:0; LCD_D6 = (out_char & 0x04)?1:0; LCD_D7 = (out_char & 0x08)?1:0; LCD_STROBE } void LCD_Init() { __delayX_mSec(200); LCD_RS_Direction = 0; LCD_EN_Direction = 0; LCD_D4_Direction = 0; LCD_D5_Direction = 0; LCD_D6_Direction = 0; LCD_D7_Direction = 0; LCD_RS = 0; LCD_EN = 0; LCD_D4 = 0; LCD_D5 = 0; LCD_D6 = 0; LCD_D7 = 0; __delay_ms(30); LCD_D4 = 1; LCD_D5 = 1; LCD_D6 = 0; LCD_D7 = 0; LCD_STROBE __delay_ms(30); LCD_D4 = 1; LCD_D5 = 1; LCD_D6 = 0; LCD_D7 = 0; LCD_STROBE __delay_ms(30); LCD_D4 = 1; LCD_D5 = 1; LCD_D6 = 0; LCD_D7 = 0; LCD_STROBE __delay_ms(30); LCD_D4 = 0; LCD_D5 = 1; LCD_D6 = 0; LCD_D7 = 0; LCD_STROBE __delay_ms(30); LCD_Cmd(0x28); LCD_Cmd(0x06); } void LCD_Out(char row, char col, char *text) { while(*text) { LCD_Chr(row, col++, *text++); } } void LCD_Out_Cp(char *text) { while(*text) LCD_Chr_Cp(*text++); } void CustomChar(char pos_row, char pos_char) { char i; LCD_Cmd(64); for (i = 0; i<=7; i++){ LCD_Chr_Cp(character[i]); } LCD_Chr(pos_row, pos_char, 0); } int main(int argc, char** argv) { TRISA = 0xC0; TRISB = 0x00; TRISC = 0x00; TRISD = 0x00; LCD_Init(); LCD_Cmd(_LCD_CURSOR_OFF); LCD_Cmd(_LCD_CLEAR); LCD_Out(1,1,text1); #ifdef One_Hz SET_FREQ = 8; //8.2 #endif #ifdef Twenty_Hz SET_FREQ = 164; #endif #ifdef Fifty_Hz SET_FREQ = 410; #endif #ifdef Two_Hundred_Hz SET_FREQ = 1640; #endif #ifdef One_KHz SET_FREQ = 8200; #endif #ifdef Ten_KHz //SET_FREQ = 5368709120; //5374034001; //Not Possible, Value Exceeds 16-Bit Value #endif PTCON0 = 0x00; PWMCON0 = 0x40; PWMCON1 = 0x01; DTCON = 0x00; OVDCOND = 0xFF; OVDCONS = 0xFF; FLTCONFIG = 0x00; //PTPER = ((Tpwm * Fosc/4) / PTMRPS) - 1 //PTMRPS = 1:1 = 1 //Tpwm = 62.5us, 16 KHz Fpwm //((62.5u * 20000000/4) / 1) - 1 //PTPER = 311.5 = 312 = 0x0138 PTPERL = 0x38; PTPERH = 0x01; SEVTCMPL = 0x00; SEVTCMPH = 0x00; InitTimer2(); PTCON1 = 0x80; while(1) { LCD_Out(2,1,text2); __delayX_mSec(500); LCD_Out(2,1,text3); __delayX_mSec(500); } return (0); }
489,584,676,761,835,896,941,969,978,969,941,896,835,761,676,584,
489,394,302,217,143,82,37,9,0,9,37,82,143,217,302,394,
0,9,37,82,143,217,302,394,489,584,676,761,835,896,941,969,
978,969,941,896,835,761,676,584,489,394,302,217,143,82,37,9