| 1,165 → 1,159 |
|---|
| #include "main.h" |
| |
| volatile unsigned int CountMilliseconds = 0; |
| volatile static unsigned int tim_main; |
| volatile unsigned char UpdateMotor = 0; |
| volatile unsigned int cntKompass = 0; |
| volatile unsigned int beeptime = 0; |
| unsigned int BeepMuster = 0xffff; |
| int ServoValue = 0; |
| volatile uint16_t CountMilliseconds = 0; |
| volatile uint8_t UpdateMotor = 0; |
| volatile uint16_t cntKompass = 0; |
| volatile uint16_t BeepTime = 0; |
| uint16_t BeepModulation = 0xFFFF; |
| |
| enum { |
| STOP = 0, |
| CK = 1, |
| CK8 = 2, |
| CK64 = 3, |
| CK256 = 4, |
| CK1024 = 5, |
| T0_FALLING_EDGE = 6, |
| T0_RISING_EDGE = 7 |
| }; |
| |
| |
| SIGNAL (SIG_OVERFLOW0) // 8kHz |
| /*****************************************************/ |
| /* Initialize Timer 0 */ |
| /*****************************************************/ |
| // timer 0 is used for the PWM generation to control the offset voltage at the air pressure sensor |
| // Its overflow interrupt routine is used to generate the beep signal and the flight control motor update rate |
| void TIMER0_Init(void) |
| { |
| static unsigned char cnt_1ms = 1,cnt = 0; |
| unsigned char pieper_ein = 0; |
| // TCNT0 -= 250;//TIMER_RELOAD_VALUE; |
| uint8_t sreg = SREG; |
| |
| if(!cnt--) |
| { |
| cnt = 9; |
| cnt_1ms++; |
| cnt_1ms %= 2; |
| if(!cnt_1ms) UpdateMotor = 1; |
| CountMilliseconds++; |
| } |
| // disable all interrupts before reconfiguration |
| cli(); |
| |
| if(beeptime > 1) |
| { |
| beeptime--; |
| if(beeptime & BeepMuster) |
| { |
| pieper_ein = 1; |
| } |
| else pieper_ein = 0; |
| } |
| else |
| { |
| pieper_ein = 0; |
| BeepMuster = 0xffff; |
| } |
| // set PB3 and PB4 as output for the PWM |
| DDRB |= (1<<DDB4)|(1<<DDB3); |
| PORTB &= ~((1<<PORTB4)|(1<<PORTB3)); |
| |
| // Timer/Counter 0 Control Register A |
| |
| if(pieper_ein) |
| { |
| if(PlatinenVersion == 10) PORTD |= (1<<2); // Speaker an PORTD.2 |
| else PORTC |= (1<<7); // Speaker an PORTC.7 |
| } |
| else |
| { |
| if(PlatinenVersion == 10) PORTD &= ~(1<<2); |
| else PORTC &= ~(1<<7); |
| } |
| |
| if(EE_Parameter.GlobalConfig & CFG_KOMPASS_AKTIV) |
| { |
| if(PINC & 0x10) |
| { |
| cntKompass++; |
| } |
| else |
| { |
| if((cntKompass) && (cntKompass < 4000)) |
| { |
| KompassValue = cntKompass; |
| } |
| // if(cntKompass < 10) cntKompass = 10; |
| // KompassValue = (unsigned long)((unsigned long)(cntKompass-10)*720L + 1L) / 703L; |
| KompassRichtung = ((540 + KompassValue - KompassStartwert) % 360) - 180; |
| cntKompass = 0; |
| } |
| } |
| // Waveform Generation Mode is Fast PWM (Bits WGM02 = 0, WGM01 = 1, WGM00 = 1) |
| // Clear OC0A on Compare Match, set OC0A at BOTTOM, noninverting PWM (Bits COM0A1 = 1, COM0A0 = 0) |
| // Clear OC0B on Compare Match, set OC0B at BOTTOM, (Bits COM0B1 = 1, COM0B0 = 0) |
| TCCR0A &= ~((1<<COM0A0)|(1<<COM0B0)); |
| TCCR0A |= (1<<COM0A1)|(1<<COM0B1)|(1<<WGM01)|(1<<WGM00); |
| |
| // Timer/Counter 0 Control Register B |
| |
| // set clock devider for timer 0 to SYSKLOCK/8 = 20MHz / 8 = 2.5MHz |
| // i.e. the timer increments from 0x00 to 0xFF with an update rate of 2.5 MHz |
| // hence the timer overflow interrupt frequency is 2.5 MHz / 256 = 9.765 kHz |
| |
| // divider 8 (Bits CS02 = 0, CS01 = 1, CS00 = 0) |
| TCCR0B &= ~((1<<FOC0A)|(1<<FOC0B)|(1<<WGM02)); |
| TCCR0B = (TCCR0B & 0xF8)|(0<<CS02)|(1<<CS01)|(0<<CS00); |
| |
| // initialize the Output Compare Register A & B used for PWM generation on port PB3 & PB4 |
| OCR0A = 0; // for PB3 |
| OCR0B = 120; // for PB4 |
| |
| // init Timer/Counter 0 Register |
| TCNT0 = 0; |
| |
| // Timer/Counter 0 Interrupt Mask Register |
| // enable timer overflow interrupt only |
| TIMSK0 &= ~((1<<OCIE0B)|(1<<OCIE0A)); |
| TIMSK0 |= (1<<TOIE0); |
| |
| SREG = sreg; |
| } |
| |
| |
| void Timer_Init(void) |
| |
| /*****************************************************/ |
| /* Interrupt Routine of Timer 0 */ |
| /*****************************************************/ |
| ISR(TIMER0_OVF_vect) // 9.765 kHz |
| { |
| tim_main = SetDelay(10); |
| TCCR0B = CK8; |
| TCCR0A = (1<<COM0A1)|(1<<COM0B1)|3;//fast PWM |
| OCR0A = 0; |
| OCR0B = 120; |
| TCNT0 = (unsigned char)-TIMER_RELOAD_VALUE; // reload |
| //OCR1 = 0x00; |
| static uint8_t cnt_1ms = 1,cnt = 0; |
| uint8_t Beeper_On = 0; |
| |
| TCCR2A=(1<<COM2A1)|(1<<COM2A0)|3; |
| TCCR2B=(0<<CS20)|(1<<CS21)|(1<<CS22); |
| |
| // TIMSK2 |= _BV(TOIE2); |
| TIMSK2 |= _BV(OCIE2A); |
| if(!cnt--) // every 10th run (9.765kHz/10 = 976Hz) |
| { |
| cnt = 9; |
| cnt_1ms++; |
| cnt_1ms %= 2; |
| if(!cnt_1ms) UpdateMotor = 1; // every 2nd run (976Hz/2 = 488 Hz) |
| CountMilliseconds++; // increment millisecond counter |
| } |
| |
| TIMSK0 |= _BV(TOIE0); |
| OCR2A = 10; |
| TCNT2 = 0; |
| |
| |
| // beeper on if duration is not over |
| if(BeepTime > 1) |
| { |
| BeepTime--; // decrement BeepTime |
| if(BeepTime & BeepModulation) Beeper_On = 1; |
| else Beeper_On = 0; |
| } |
| else // beeper off if duration is over |
| { |
| Beeper_On = 0; |
| BeepModulation = 0xFFFF; |
| } |
| |
| // if beeper is on |
| if(Beeper_On) |
| { |
| // set speaker port to high |
| if(PlatinenVersion == 10) PORTD |= (1<<2); // Speaker at PD2 |
| else PORTC |= (1<<7); // Speaker at PC7 |
| } |
| else // beeper is off |
| { |
| // set speaker port to low |
| if(PlatinenVersion == 10) PORTD &= ~(1<<2);// Speaker at PD2 |
| else PORTC &= ~(1<<7);// Speaker at PC7 |
| } |
| |
| // update compass value if this option is enabled in the settings |
| if(EE_Parameter.GlobalConfig & CFG_KOMPASS_AKTIV) |
| { |
| if(PINC & 0x10) |
| { |
| cntKompass++; |
| } |
| else |
| { |
| if((cntKompass) && (cntKompass < 4000)) |
| { |
| KompassValue = cntKompass; |
| } |
| KompassRichtung = ((540 + KompassValue - KompassStartwert) % 360) - 180; |
| cntKompass = 0; |
| } |
| } |
| } |
| |
| |
| |
| // ----------------------------------------------------------------------- |
| |
| unsigned int SetDelay (unsigned int t) |
| uint16_t SetDelay (uint16_t t) |
| { |
| // TIMSK0 &= ~_BV(TOIE0); |
| return(CountMilliseconds + t + 1); |
| // TIMSK0 |= _BV(TOIE0); |
| // TIMSK0 &= ~(1<<TOIE0); |
| return(CountMilliseconds + t + 1); |
| // TIMSK0 |= (1<<TOIE0); |
| } |
| |
| // ----------------------------------------------------------------------- |
| char CheckDelay(unsigned int t) |
| int8_t CheckDelay(uint16_t t) |
| { |
| // TIMSK0 &= ~_BV(TOIE0); |
| // TIMSK0 &= ~(1<<TOIE0); |
| return(((t - CountMilliseconds) & 0x8000) >> 9); |
| // TIMSK0 |= _BV(TOIE0); |
| // TIMSK0 |= (1<<TOIE0); |
| } |
| |
| // ----------------------------------------------------------------------- |
| void Delay_ms(unsigned int w) |
| void Delay_ms(uint16_t w) |
| { |
| unsigned int akt; |
| akt = SetDelay(w); |
| while (!CheckDelay(akt)); |
| unsigned int t_stop; |
| t_stop = SetDelay(w); |
| while (!CheckDelay(t_stop)); |
| } |
| |
| void Delay_ms_Mess(unsigned int w) |
| // ----------------------------------------------------------------------- |
| void Delay_ms_Mess(uint16_t w) |
| { |
| unsigned int akt; |
| akt = SetDelay(w); |
| while (!CheckDelay(akt)) ANALOG_ON; |
| uint16_t t_stop; |
| t_stop = SetDelay(w); |
| while (!CheckDelay(t_stop)) ADC_Enable(); |
| } |
| |
| // +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // Servo ansteuern |
| // +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| SIGNAL(SIG_OUTPUT_COMPARE2A) |
| { |
| static unsigned char timer = 10; |
| |
| if(!timer--) |
| { |
| TCCR2A=(1<<COM2A1)|(0<<COM2A0)|3; |
| ServoValue = Parameter_ServoNickControl; |
| if(EE_Parameter.ServoNickCompInvert & 0x01) ServoValue += ((long) EE_Parameter.ServoNickComp * (IntegralNick / 128)) / 512; |
| else ServoValue -= ((long) EE_Parameter.ServoNickComp * (IntegralNick / 128)) / 512; |
| |
| if(ServoValue < EE_Parameter.ServoNickMin) ServoValue = EE_Parameter.ServoNickMin; |
| else if(ServoValue > EE_Parameter.ServoNickMax) ServoValue = EE_Parameter.ServoNickMax; |
| |
| OCR2A = ServoValue;// + 75; |
| timer = EE_Parameter.ServoNickRefresh; |
| } |
| else |
| { |
| TCCR2A =3; |
| PORTD&=~0x80; |
| } |
| } |