arduino mega 1280 2560 3 phase sine wave pwm #include #include PROGMEM const uint16_t sine512[] = {250,256,262,269,275,281,288,294,301,308,314,319,326,332,339,344,350,356,362,367,374,379,384,389,395,400,404,410,414,419,423,428,433,436,440,445,449,452,455,458,463,466,468,471,474,476,478,481,483,485,487,488,490,491,493,494,495,496,496,498,499,499,499,500,500,499,499,499,498,498,496,496,495,494,493,493,492,491,489,488,487,486,484,483,481,480,478,476,474,473,471,470,468,466,465,463,460,459,457,455,453,452,450,449,447,446,445,443,442,440,439,438,436,435,434,433,432,432,431,430,430,429,428,428,428,428,427,427,427,427,427,428,428,428,428,429,430,430,431,432,432,433,434,435,436,438,439,440,442,443,445,446,447,449,450,452,453,455,457,459,460,463,465,466,468,470,471,473,474,476,478,480,481,483,484,486,487,488,489,491,492,493,493,494,495,496,496,498,498,499,499,499,500,500,499,499,499,498,496,496,495,494,493,491,490,488,487,485,483,481,478,476,474,471,468,466,463,458,455,452,449,445,440,436,433,428,423,419,414,410,404,400,395,389,384,379,374,367,362,356,350,344,339,332,326,319,314,308,301,294,288,281,275,269,262,256,250,244,238,231,225,219,212,206,199,192,186,181,174,168,161,156,150,144,138,133,126,121,116,111,105,100,96,90,86,81,77,72,67,64,60,55,51,48,45,42,37,34,32,29,26,24,22,19,17,15,13,12,10,9,7,6,5,4,4,2,1,1,1,0,0,1,1,1,2,2,4,4,5,6,7,7,8,9,11,12,13,14,16,17,19,20,22,24,26,27,29,30,32,34,35,37,40,41,43,45,47,48,50,51,53,54,55,57,58,60,61,62,64,65,66,67,68,68,69,70,70,71,72,72,72,72,73,73,73,73,73,72,72,72,72,71,70,70,69,68,68,67,66,65,64,62,61,60,58,57,55,54,53,51,50,48,47,45,43,41,40,37,35,34,32,30,29,27,26,24,22,20,19,17,16,14,13,12,11,9,8,7,7,6,5,4,4,2,2,1,1,1,0,0,1,1,1,2,4,4,5,6,7,9,10,12,13,15,17,19,22,24,26,29,32,34,37,42,45,48,51,55,60,64,67,72,77,81,86,90,96,100,105,111,116,121,126,133,138,144,150,156,161,168,174,181,186,192,199,206,212,219,225,231,238,244}; #define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit)) #define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit)) //vyssi refclk == vyssi frekout const unsigned long refclk=1562960; const unsigned long refclk=781480; volatile int current_count; volatile unsigned long phase_accumulator; volatile unsigned long tword_m; volatile unsigned long stepm; volatile word count = 0; volatile byte DT = 10; volatile byte ampl = 13; volatile word offset_1 = 171; volatile word offset_2 = 341; word fnom = 5000; word fzad = 0; word boost = 600; word readpot; word calc; boolean ISR_exec_time = 1; boolean RUN = 0; byte bufclr = 0; void setup() { pinMode(6, OUTPUT); //OC4A pinMode(7, OUTPUT); //OC4B pinMode(8, OUTPUT); //OC4C pinMode(11, OUTPUT); //OC1A pinMode(12, OUTPUT); //OC1B pinMode(13, OUTPUT); //OC1C //pinMode(5, OUTPUT); //OC3A //pinMode(2, OUTPUT); //OC3B //pinMode(3, OUTPUT); //OC3C pinMode(52, OUTPUT); pinMode(53, OUTPUT); pinMode(22, INPUT_PULLUP); pinMode(23, INPUT_PULLUP); sbi (GTCCR, TSM); sbi (GTCCR, PSRASY); sbi (GTCCR, PSRSYNC); Setup_timer1(); Setup_timer2(); Setup_timer4(); //Setup_timer3(); //Setup_timer5(); TCNT1 = 0; //TCNT3 = 0; TCNT4 = 0; //TCNT5 = 0; GTCCR = 0; //Disable Timer 0 cbi (TIMSK0,TOIE0); tword_m=pow(2,32)*fzad/refclk; sbi (TIMSK4,TOIE4); Serial.begin(9600); } void loop() { while(1) { readpot = 0; for (int i=0; i <= 9; i++) { readpot = readpot + analogRead(0); } if (digitalRead(22)==0 && fzad==0) { offset_1 = 341; offset_2 = 171; } if (digitalRead(22)==1 && fzad==0 ) { offset_1 = 171; offset_2 = 341; } //=============================================== if (digitalRead(23)==1 && fzad!=readpot) { //================================================ if (fzad>readpot && TCNT2 > 10) { fzad = fzad-1; TCNT2=0; } if (fzad 10) { fzad = fzad+1; TCNT2=0; } //================================================ stepm = pow(2,32)*fzad/refclk; calc = ((1280/(fnom/100))*(fzad/100))/10; if (fzad > fnom) //*500 { calc = 128; } if (fzad < boost) { calc = 14; } cbi (TIMSK4,TOIE4); ampl = calc; //*5 tword_m = stepm; sbi (TIMSK4,TOIE4); } //=============================================== /* */ if (count > 7000) { bufclr = bufclr+1; count = 0; Serial.println(bufclr); Serial.println(fzad); Serial.println(ampl); } } } ISR(TIMER4_OVF_vect) { sbi(PORTB,ISR_exec_time); phase_accumulator=phase_accumulator+tword_m; current_count=phase_accumulator >> 23; word offs; word offs1; word offs2; offs= current_count + offset_1; offs2 = current_count + offset_2; if (offs > 511) { offs = offs - 512; } if (offs2 > 511) { offs2 = offs2 - 512; } offs = (pgm_read_word_near(sine512 + offs)*ampl) >> 6; offs1 = (pgm_read_word_near(sine512 + current_count)*ampl) >> 6; offs2 = (pgm_read_word_near(sine512 + offs2)*ampl) >> 6; if (tword_m > 0) { OCR4B = offs + DT; OCR1B = offs; OCR4A = offs1 + DT; OCR1A = offs1; OCR4C = offs2 + DT; OCR1C = offs2; } else { OCR4B = 1023; OCR1B = 0; OCR4A = 1023; OCR1A = 0; OCR4C = 1023; OCR1C = 0; } cbi(PORTB,ISR_exec_time); count = count+1; /* */ } void Setup_timer1(void) { //Clock Prescaler : 1 sbi (TCCR1B, CS10); cbi (TCCR1B, CS11); cbi (TCCR1B, CS12); // Timer1 Phase Correct PWM sbi (TCCR1A, COM1A0); sbi (TCCR1A, COM1A1); sbi (TCCR1A, COM1B0); sbi (TCCR1A, COM1B1); sbi (TCCR1A, COM1C0); //tretireg sbi (TCCR1A, COM1C1); //tretireg // Mode 1 / Phase Correct PWM sbi (TCCR1A, WGM10); sbi (TCCR1A, WGM11); cbi (TCCR1B, WGM12); cbi (TCCR1B, WGM13); } void Setup_timer4(void) { sbi (TCCR4B, CS40); cbi (TCCR4B, CS41); cbi (TCCR4B, CS42); cbi (TCCR4A, COM4A0); sbi (TCCR4A, COM4A1); cbi (TCCR4A, COM4B0); sbi (TCCR4A, COM4B1); cbi (TCCR4A, COM4C0); sbi (TCCR4A, COM4C1); sbi (TCCR4A, WGM40); sbi (TCCR4A, WGM41); cbi (TCCR4B, WGM42); cbi (TCCR4B, WGM43); } void Setup_timer2(void) { //Prescaler : 1 cbi (TCCR2B, CS20); cbi (TCCR2B, CS21); sbi (TCCR2B, CS22); // Phase Correct PWM cbi (TCCR2A, COM2A0); // clear Compare Match cbi (TCCR2A, COM2A1); cbi (TCCR2A, COM2B0); cbi (TCCR2A, COM2B1); //Phase Correct PWM cbi (TCCR2A, WGM20); cbi (TCCR2A, WGM21); cbi (TCCR2B, WGM22); } /* void Setup_timer3(void) { sbi (TCCR3B, CS30); cbi (TCCR3B, CS31); cbi (TCCR3B, CS32); cbi (TCCR3A, COM3A0); sbi (TCCR3A, COM3A1); cbi (TCCR3A, COM3B0); sbi (TCCR3A, COM3B1); cbi (TCCR3A, COM3C0); sbi (TCCR3A, COM3C1); sbi (TCCR3A, WGM30); sbi (TCCR3A, WGM31); cbi (TCCR3B, WGM32); cbi (TCCR3B, WGM33); } void Setup_timer5(void) { sbi (TCCR5B, CS50); cbi (TCCR5B, CS51); cbi (TCCR5B, CS52); cbi (TCCR5A, COM5A0); sbi (TCCR5A, COM5A1); cbi (TCCR5A, COM5B0); sbi (TCCR5A, COM5B1); cbi (TCCR5A, COM5C0); sbi (TCCR5A, COM5C1); sbi (TCCR5A, WGM50); sbi (TCCR5A, WGM51); cbi (TCCR5B, WGM52); cbi (TCCR5B, WGM53); } Setup_timer2(); void Setup_timer2() { //Prescaler : 1 sbi (TCCR2B, CS20); cbi (TCCR2B, CS21); cbi (TCCR2B, CS22); // Phase Correct PWM cbi (TCCR2A, COM2A0); // clear Compare Match cbi (TCCR2A, COM2A1); cbi (TCCR2A, COM2B0); cbi (TCCR2A, COM2B1); //Phase Correct PWM sbi (TCCR2A, WGM20); cbi (TCCR2A, WGM21); cbi (TCCR2B, WGM22); } volatile byte ms4_delay; volatile byte c4ms; if (c4ms > 25) { c4ms=0; offset_3=analogRead(0)/4; dfreq=50.0; cbi (TIMSK2,TOIE2); tword_m=pow(2,32)*dfreq/refclk; sbi (TIMSK2,TOIE2); } */ /* if(ms4_delay++ == 125) { c4ms++; ms4_delay=0; //reset count } coffs = pgm_read_word_near(sine512 + coffs2 - 1); OCR1B = ((word)coffs*99)/100; // +1 korekce */ /* */