#define F_CPU 12000000
 
 
#include "s/g.h"
#include <util/delay.h>
 
 
 
int main(void){
   // Init HW
   // Both LEDs on
   // Activate pull-up resistor for PC1 (slow-jumper)
   sbi(PORTC, 0);
   sbi(DDRC, 0);
   sbi(PORTD, 5);
   sbi(DDRD, 5);
   sbi(PORTC, 1);
   cbi(DDRC, 1);
 
   // both LEDs on for 1s
   _delay_ms(1000);
 
   while(1){
      // PRG-ready LED (C0) on for 400ms
      // Busy LED (D5) off
      cbi(PORTD, 5);      
      sbi(PORTC, 0);
      _delay_ms(400);
 
      // Only when the slow-jumper is shorted, the busy-LED will blink
      if(!(PINC&(1<<1))){
         sbi(PORTD, 5);
      }
      // PRG-led always during this part off the cycle
      cbi(PORTC, 0);
      _delay_ms(400);
   }
 
   return 0;
}