// Elektronischer Würfel  Version 1.0

// Version 1.1 wenn Taste betätigt wird kein Power Down ausgeführt

// Version 1.2 Analogcomperator aus wegen Strom sparen  16.12.2002

 #include <iot2313v.h>

 #include <macros.h>

 #define MAX    30

 #define Z1    5000     //

 #define Z2    10000     //

 #define Z3    15000     //

 #define Z4    20000     //

 #define Z5    25000     //

 #define Z6    30000     //

 // Function prototypes

 void setLeds(unsigned char val);

 void delay(unsigned int c);

 flash unsigned char led[7] = {0xF7,0xDE,0xD6,0x9C,0x94,0x88,0x80};

 void main()

 {

    unsigned char j; 

    unsigned char runner = 0x01;

    DDRB = 0xff; // Set all pins on port B as outputs

    PORTB = 0xff; // Alle Leds aus  

    ACSR  = 0x80; // Analog Comperator aus   15uA bei 3V

    runner = 3;

    PORTD = 0x04; // PD2 Input mit Pullup

    GIMSK |= 0x40; // Int0 ativ

    _asm("sei"); // Enable global interrupt

    while(1)

    {

      if (!(PIND & 0x04))       // PD2 = 0 dann Zählen

      {

        runner++;    // +1

        if(runner >7) //unser Würfel geht bis 7

           runner = 1;

      }

      else

      {

         setLeds(2);    // Set the LED's

         delay(Z1);     // Wait a moment

         setLeds(4);    // Set the LED's

         delay(Z2);     // Wait a moment

         setLeds(3);    // Set the LED's

         delay(Z3);     // Wait a moment

         setLeds(5);    // Set the LED's

         delay(Z4);     // Wait a moment

         setLeds(1);    // Set the LED's

         delay(Z6);     // Wait a moment

         setLeds(runner); // Set the LED's

         for(j = 0;j<max;j++)< body="">

         delay(Z1);

         PORTB = 0xff;        // alle Leds aus 

         delay(100);

         if(PIND & 0x04)     // Taste wieder frei

         {                   // Wir gehen schlafen

            GIMSK |= 0x40;    // Int0 ativ

            MCUCR = 0x30;     // PowerDown Wake up at low Int0

           _asm("sleep");     // Power down

         }

       }

     }

  }

 void setLeds(unsigned char val)

 {

   val--;

   PORTB = led[val];

 }

 void delay(unsigned int count)

 {

   while(--count) // Decrease to zero

      ; // Empty

 }

 #pragma interrupt_handler int0_handler:iv_INT0

 // handles INT0 interrupt

 void int0_handler(void)

 {

      GIMSK = 0; // Int0 deaktiv

 }