#define OUTPUT_PIN PD3
#define OUTPUT_DDR DDRD
#define OUTPUT_PORTPORTD
#define PIN_TIME 1.5
#define OUTPUT_ENABLE OUTPUT_PORT |= (1<<OUTPUT_PIN)
#define OUTPUT_DISABLE OUTPUT_PORT&= ~(1<<OUTPUT_PIN)
#define TIMER2_STARTTCCR2 |= (1<<CS21)
#define TIMER2_STOPTCCR2 &= ~(1<<CS21)
#define __OCR_STEP ((F_CPU/8)*((1000-((PIN_TIME*100)/2))/STEPS_COUNT))/100000
#define PERCENT_FULFILMENT(x) ((x*(STEPS_COUNT-1))/100)
//------TIMERS---------------
volatile uint8_t timer, flag;
//---------------------------
volatile uint8_t regulator_buffer1 = 0;
volatile uint8_t regulator_buffer2 = 0;
volatile uint8_t regulator_fulfillment = 0;
int main() {
//TIMER0 100Hz
TCCR0 |= (1 << WGM01);
TCCR0 |= (1 << CS02) | (1 << CS00);
OCR0 = 156;
TIMSK |= (1 << OCIE0);
sei();
OUTPUT_DDR |= (1 << OUTPUT_PIN);
OUTPUT_DISABLE;
MCUCR |= (1 << ISC01) | (1 << ISC00); // zbocze narastaj¹ce
TCCR2 |= (1 << WGM21); // tryb CTC
TIMSK |= (1 << OCIE2); // odblokowanie przerwania COMPARE MATCH
OCR2 = __OCR_STEP;
GICR |= (1 << INT0); // INT0 enable
regulator_fulfillment = PERCENT_FULFILMENT(30);
while(1) {
if(flag) {
if(0 == (timer % 3)) {
search_sensors();
} else if(1 == (timer % 3)) {
DS18X20_start_meas(DS18X20_POWER_PARASITE, NULL);
} else if(2 == (timer % 3)) {
uint8_t x, y, z;
DS18X20_read_meas(gSensorIDs[0], &x, &y, &z);
}
flag = 0;
}
}
return 0;
}
ISR(TIMER0_COMP_vect) {
static uint8_t cnt = 0;
if(++cnt > 99) {
flag = 1;
timer++;
if(timer > 59)
timer = 0;
cnt = 0;
}
}
ISR(INT0_vect) {
TIMER2_STOP;
OUTPUT_DISABLE;
regulator_buffer1 = STEPS_COUNT;
regulator_buffer2 = regulator_fulfillment;
TCNT2 = 0;
TIMER2_START;
}
ISR(TIMER2_COMP_vect) {
if (regulator_buffer2 && regulator_buffer1 == regulator_buffer2)
OUTPUT_ENABLE;
regulator_buffer1--;
}[/syntax]
Dodam jeszcze, że zmniejszając liczbę kroków migotanie zmniejsza się, ale nie jest całkowicie eliminowane.
Kod wklejamy przy pomocy syntax=c - Różowy J.Statystyki: Napisane przez Razz — 2 sie 2013, o 21:19
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