// Example of minimal scheduler




// Pin 13 has an LED connected on most Arduino boards
// give it a name:
#define LED INTERNAL 13   // Port B bit 7
#define LED EXTERNAL 10   // Port B bit 4
#define LEDPORT      PORTB
#define LEDDDR       DDRB
#define L_I_BIT      1<<5
#define L_E_BIT      1<<2
//#define LOOP BIT   12   // we'll use this later but not now


// the setup routine runs once when you press reset:
void setup() {
// initialize the LED pins as an output.
  LEDDDR |= ( L_I_BIT | L_E_BIT );

// pinMode (LED_ INTERNAL, OUTPUT) ;
// pinMode(LED EXTERNAL, OUTPUT) ;
// pinMode(LOOP BIT, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  static int tmp = 0;
  taskA(); //assume taskA and taskB take 0 time
  taskB();
  delay(1); // sync
}


// Flash the on-board LED 10 times per second
void taskA(){
  static int time;
  time++;
  if (time == 500) {
//  digitalWrite/lFnTNTERNAI
    LEDPORT |= L_I_BIT; // set LED output bit
  }

  if (time == 1000) {
//  digitalWrite (LED INTERNAL, LOW);
    LEDPORT &= ~L_I_BIT; // clear the bit
    time = 0;
  }

return;
}


// Flash the OFF-board LED 1 times per second
void taskB() {
  static int time;
  time++;
  if (time == 200) {// because we are counting loops we can use
//  digitalWrite(LED EXTERNAL, HIGH) ;
    LEDPORT |= L_E_BIT;
  }
  if (time == 400) {
//  digitalwrite(LED EXTERNAL, LOW) ;
  LEDPORT &= ~L_E_BIT;
    time = 0;
  }

return;
}