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| 28 | /*----------------------------------------------------------------------------- |
28 | /*----------------------------------------------------------------------------- |
| 29 | * Interrupt Service Routines |
29 | * Interrupt Service Routines |
| 30 | *---------------------------------------------------------------------------*/ |
30 | *---------------------------------------------------------------------------*/ |
| 31 | #if defined(TIMEBASE_NEW_IMPLEMENTATION) |
31 | #if defined(TIMEBASE_NEW_IMPLEMENTATION) |
| 32 | 32 | ||
| 33 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
33 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 34 | #if defined(TIMER2) |
34 | #if defined(TIMER2) |
| 35 | ISR(TIMER2_COMPA_vect) { |
35 | ISR(TIMER2_COMPA_vect) { |
| 36 | #else //!defined(TIMER2) |
36 | #else //!defined(TIMER2) |
| 37 | ISR(TIMER0_COMPA_vect) { |
37 | ISR(TIMER0_COMPA_vect) { |
| 38 | #endif //defined(TIMER2) |
38 | #endif //defined(TIMER2) |
| 39 | #else //!defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
39 | #else //!defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 40 | ISR(TIMER2_COMP_vect) { |
40 | ISR(TIMER2_COMP_vect) { |
| 41 | #endif //defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
41 | #endif //defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 42 | gMilliSecTick++; |
42 | gMilliSecTick++; |
| 43 | } |
43 | } |
| 44 | 44 | ||
| 45 | #else //!defined(TIMEBASE_NEW_IMPLEMENTATION) |
45 | #else //!defined(TIMEBASE_NEW_IMPLEMENTATION) |
| 46 | 46 | ||
| Line 81... | Line 81... | ||
| 81 | OCR2 = TIMEBASE_HITS_PER_1MS; // set timer period |
81 | OCR2 = TIMEBASE_HITS_PER_1MS; // set timer period |
| 82 | TIFR |= (1<<OCF2); // clear ouput compare match flag |
82 | TIFR |= (1<<OCF2); // clear ouput compare match flag |
| 83 | TIMSK |= (1<<OCIE2); // enable output compare match interrupt |
83 | TIMSK |= (1<<OCIE2); // enable output compare match interrupt |
| 84 | #endif |
84 | #endif |
| 85 | 85 | ||
| 86 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
86 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 87 | TCCR2A = (1<<WGM21); // CTC mode |
87 | TCCR2A = (1<<WGM21); // CTC mode |
| 88 | #if TIMEBASE_PRESCALE == 64 |
88 | #if TIMEBASE_PRESCALE == 64 |
| 89 | TCCR2B = (1<<CS22); // prescaler: 64 |
89 | TCCR2B = (1<<CS22); // prescaler: 64 |
| 90 | #elif TIMEBASE_PRESCALE == 256 |
90 | #elif TIMEBASE_PRESCALE == 256 |
| 91 | TCCR2B = (1<<CS22)|(1<<CS21); // prescaler: 256 |
91 | TCCR2B = (1<<CS22)|(1<<CS21); // prescaler: 256 |
| Line 97... | Line 97... | ||
| 97 | #else /* Use timer0 */ |
97 | #else /* Use timer0 */ |
| 98 | #if defined(__AVR_ATmega8__) |
98 | #if defined(__AVR_ATmega8__) |
| 99 | #error TIMER0 not supported in ATmega8 with TIMEBASE_NEW_IMPLEMENTATION set! |
99 | #error TIMER0 not supported in ATmega8 with TIMEBASE_NEW_IMPLEMENTATION set! |
| 100 | #endif |
100 | #endif |
| 101 | 101 | ||
| 102 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
102 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 103 | TCCR0A = (1<<WGM01); // CTC mode |
103 | TCCR0A = (1<<WGM01); // CTC mode |
| 104 | #if TIMEBASE_PRESCALE == 64 |
104 | #if TIMEBASE_PRESCALE == 64 |
| 105 | TCCR0B = (1<<CS01) | (1<<CS00); // prescaler: 64 |
105 | TCCR0B = (1<<CS01) | (1<<CS00); // prescaler: 64 |
| 106 | #elif TIMEBASE_PRESCALE == 256 |
106 | #elif TIMEBASE_PRESCALE == 256 |
| 107 | TCCR0B = (1<<CS02); // prescaler: 256 |
107 | TCCR0B = (1<<CS02); // prescaler: 256 |
| Line 125... | Line 125... | ||
| 125 | TCNT2 = TIMEBASE_RELOAD; // set initial reload-value |
125 | TCNT2 = TIMEBASE_RELOAD; // set initial reload-value |
| 126 | TIFR |= (1<<TOV2); // clear overflow int. |
126 | TIFR |= (1<<TOV2); // clear overflow int. |
| 127 | TIMSK |= (1<<TOIE2); // enable overflow-interrupt |
127 | TIMSK |= (1<<TOIE2); // enable overflow-interrupt |
| 128 | #endif |
128 | #endif |
| 129 | 129 | ||
| 130 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
130 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 131 | #if TIMEBASE_PRESCALE == 64 |
131 | #if TIMEBASE_PRESCALE == 64 |
| 132 | TCCR2B = (1<<CS22); // prescaler: 64 |
132 | TCCR2B = (1<<CS22); // prescaler: 64 |
| 133 | #elif TIMEBASE_PRESCALE == 256 |
133 | #elif TIMEBASE_PRESCALE == 256 |
| 134 | TCCR2B = (1<<CS22)|(1<<CS21); // prescaler: 256 |
134 | TCCR2B = (1<<CS22)|(1<<CS21); // prescaler: 256 |
| 135 | #endif |
135 | #endif |
| Line 147... | Line 147... | ||
| 147 | TCNT0 = TIMEBASE_RELOAD; // set initial reload-value |
147 | TCNT0 = TIMEBASE_RELOAD; // set initial reload-value |
| 148 | TIFR |= (1<<TOV0); // clear overflow int. |
148 | TIFR |= (1<<TOV0); // clear overflow int. |
| 149 | TIMSK |= (1<<TOIE0); // enable overflow-interrupt |
149 | TIMSK |= (1<<TOIE0); // enable overflow-interrupt |
| 150 | #endif |
150 | #endif |
| 151 | 151 | ||
| 152 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) |
152 | #if defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) |
| 153 | #if TIMEBASE_PRESCALE == 64 |
153 | #if TIMEBASE_PRESCALE == 64 |
| 154 | TCCR0B = (1<<CS01) | (1<<CS00); // prescaler: 64 |
154 | TCCR0B = (1<<CS01) | (1<<CS00); // prescaler: 64 |
| 155 | #elif TIMEBASE_PRESCALE == 256 |
155 | #elif TIMEBASE_PRESCALE == 256 |
| 156 | TCCR0B = (1<<CS02); // prescaler: 256 |
156 | TCCR0B = (1<<CS02); // prescaler: 256 |
| 157 | #endif |
157 | #endif |