Hallo,
Ich will ein kleines Progi schreiben das auf einen Attiny85 drei PWM und
ein ADC - Pin steuert. Nun habe ich zwei kleine Progis geschriben die
einzeln einwandfrei funktionieren. Aber sobald ich sie zusammenfüge hab
reagier weder PWM noch ADC. Kann mir jemand sagen warum…
1 | /*
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2 | * LED_PWM.c
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3 | *
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4 | * Created: 06.09.2013 13:13:37
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5 | * Author: Mohan
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6 | */
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7 |
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8 | #define F_CPU 1000000UL
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9 |
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10 | #include <avr/io.h>
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11 | #include <util/delay.h>
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12 | #include <avr/interrupt.h>
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13 |
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14 | int ADC_val;
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15 |
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16 | // re- / start interrupt
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17 | void start_ADC(void)
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18 | {
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19 | ADCSRA |= (1 << ADSC);
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20 | }
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21 |
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22 | int main(void)
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23 | {
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24 | // PORT init
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25 | DDRB = (1 << DDB4) | (1 << DDB1) | (1 << DDB0);
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26 | PORTB = 0x00;
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27 |
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28 | // set Bits for FPWM Timer0
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29 | TCCR0A = (1 << COM0A1) | (1 << COM0B1) | (1 << WGM00) | (1 << WGM01);
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30 |
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31 | // set Bits for NPWM Timer1
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32 | GTCCR = (1 << PWM1B) | (1<< COM1B0);
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33 |
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34 | // Set Timer0 interrupt Bit | Set Timer1 interrupt Bit
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35 | TIMSK = (1 << TOIE0) | (1 << TOIE1);
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36 |
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37 | // FPWM VALUES
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38 | OCR0A = 0;
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39 | OCR0B = 0;
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40 |
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41 | DDRB = (1 << DDB4) | (1 << DDB1) | (1 << DDB0);
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42 | PORTB = 0x13;
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43 |
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44 | // ADC init
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45 | ADMUX = (1 << MUX0) | (1 << MUX1);
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46 | ADCSRA = (1 << ADEN) | (1 << ADIE) | (1 << ADPS2) | (1 << ADPS0);
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47 | DIDR0 = (1 << ADC3D);
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48 |
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49 | // NPWM VLUES
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50 | OCR1B = 0;
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51 | OCR1C = 255;
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52 |
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53 | // start Timers
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54 | TCCR1 = (1 << CS10);
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55 | TCCR0B = (1 << CS00);
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56 |
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57 | // start interrupts
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58 | sei();
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59 |
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60 | start_ADC();
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61 |
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62 | while(1)
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63 | {
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64 |
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65 | }
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66 | }
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67 |
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68 | ISR(ADC_vect)
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69 | {
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70 | ADC_val = ADC;
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71 | start_ADC();
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72 | }
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73 |
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74 | // Timer1 interrupt
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75 | ISR(TIMER1_OVF_vect)
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76 | {
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77 | OCR1B = 255; // grün
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78 | }
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79 |
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80 | // Timer0 interrupt
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81 | ISR(TIMER0_OVF_vect)
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82 | {
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83 | OCR0A = 255; // rot
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84 | OCR0B = 255; // blau
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85 | }
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