// Termin 3 Aufgabe 2

#include "../h/aic.h"
#include "../h/pmc.h"
#include "../h/pio.h"

#define CYCLE_COUNT_MAX 1000

#define NB_CYCLES 2

int main(void)
{

  StructPMC* pmcbase = PMC_BASE;	// Basisadresse des PMC
  StructPIO* piobaseB = PIOB_BASE;	// Basisadresse der PIOB
  
  pmcbase->PMC_PCER = 1 << PIOB_ID;  // Peripheral Clock Enable  Register fuer Status-Abfrage
  
  piobaseB->PIO_PER = ALL_LEDS;
  piobaseB->PIO_OER = ALL_LEDS;
  
  piobaseB->PIO_SODR = ALL_LEDS; 	// clear all LEDs
      
  piobaseB->PIO_CODR =LED1;       	// set LED DS1 (linke LED)
  
  at91_reg actStutusReg_pioB = piobaseB->PIO_ODSR;  // read Output Data Status Register
  
  unsigned int actCount = 0;
  
  int i = 0;
  
  for (i = 0; i < NB_CYCLES ; )
  {
    actCount++;
       
    if ( 0 == actCount%CYCLE_COUNT_MAX )	// reached max cycle count
    {
	// set LED
	piobaseB->PIO_CODR = LED1;	 
	
	// read Output Data Status Register
	actStutusReg_pioB = piobaseB->PIO_ODSR; 
	
	// reset cycle count
	actCount = 0; 
	
	// increment cycles
	i++;
    }
    
    if ( CYCLE_COUNT_MAX/2 == actCount%CYCLE_COUNT_MAX ) // reached half cycle count
    {
    	// clear LED
	piobaseB->PIO_SODR = LED1;	
	
	// read Output Data Status Register
	actStutusReg_pioB = piobaseB->PIO_ODSR;  
    }
    
  }
    
  return 0;
}