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plugin23

zadanie9f

plugin23
Jun 15th, 2016
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  1. #define F_CPU 1000000UL
  2. #include <avr/io.h>
  3. #include <util/delay.h>
  4.  
  5. void sirena (int cislo){
  6.     while (cislo >= 0){
  7.         _delay_us(1);
  8.         cislo --;
  9.     }
  10. }
  11.  
  12. int main(void){
  13.     DDRD = 0xFF;
  14.     while(1){
  15.         for (int i = 1; i<=500; i++) {
  16.         PORTD = 0b00000000;
  17.         sirena (i);
  18.         PORTD = 0b10000000;
  19.         sirena(i);
  20.         }
  21.         for (int i = 500; i>=1; i--) {
  22.             PORTD = 0b00000000;
  23.             sirena (i);
  24.             PORTD = 0b10000000;
  25.             sirena(i);
  26.         }
  27.     }
  28. return 0;
  29. }
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