#include <p18f2550.h>
#include <timers.h>



/** CONFIGURATION **************************************************/

    #pragma config PLLDIV   = 1         // (20 MHz crystal on PICDEM FS USB board)
    #pragma config CPUDIV   = OSC1_PLL2
    #pragma config USBDIV   = 1       // Clock source from 96MHz PLL/2
    #pragma config FOSC     = HSPLL_HS
    #pragma config FCMEN    = OFF
    #pragma config IESO     = OFF
    #pragma config PWRT     = OFF
    #pragma config BOR      = ON
    #pragma config BORV     = 3
    #pragma config VREGEN   = ON      //USB Voltage Regulator
    #pragma config WDT      = OFF
    #pragma config WDTPS    = 32768
    #pragma config MCLRE    = OFF
    #pragma config LPT1OSC  = OFF
    #pragma config PBADEN   = OFF
    //      #pragma config CCP2MX   = ON
    #pragma config STVREN   = ON
    #pragma config LVP      = OFF
    //      #pragma config ICPRT    = OFF       // Dedicated In-Circuit Debug/Programming
    #pragma config XINST    = OFF       // Extended Instruction Set
    #pragma config CP0      = OFF
    #pragma config CP1      = OFF
    //      #pragma config CP2      = OFF
    //      #pragma config CP3      = OFF
    #pragma config CPB      = OFF
    //      #pragma config CPD      = OFF
    #pragma config WRT0     = OFF
    #pragma config WRT1     = OFF
    //      #pragma config WRT2     = OFF
    //      #pragma config WRT3     = OFF
    #pragma config WRTB     = OFF       // Boot Block Write Protection
    #pragma config WRTC     = OFF
    //      #pragma config WRTD     = OFF
    #pragma config EBTR0    = OFF
    #pragma config EBTR1    = OFF
    //      #pragma config EBTR2    = OFF
    //      #pragma config EBTR3    = OFF
    #pragma config EBTRB    = OFF

int a;


/*############### V E C T O R  R E M A P P I N G #####################*/
#pragma code

//These are your actual interrupt handling routines.
#pragma interrupt HighPriorityISRCode
void HighPriorityISRCode()
{
    // check here for High Priority interrupts (PIR1bits, INTCON, etc)
    if(a==0)
    {
        a = 1 ;
        PORTB = 0xff;
    }
    else
    {
        a = 0;
        PORTB = 0x00;
    }
    WriteTimer0(61629);
    PORTA = a;
}

#pragma interruptlow LowPriorityISRCode
void LowPriorityISRCode()
{
}

#pragma code HIGH_INTERRUPT_VECTOR = 0x08
void Remapped_High_ISR (void)
{
     _asm goto HighPriorityISRCode _endasm
}
#pragma code LOW_INTERRUPT_VECTOR = 0x18
void Remapped_Low_ISR (void)
{
         _asm goto LowPriorityISRCode _endasm
}

/*#D E C L A R A T I O N S ###################################*/

#pragma code

void main(void)
{
    ADCON1=0x0F;//Todos entrada/salida digitales.
    TRISA=0x00; //Todos como salida.

    TRISB=0X00;
    //Todos como salida.
    PORTB=0x00; //Leds apagados.

    a=0;

    INTCONbits.PEIE=1;      // Habilitamos interrupcion de perifericos.
    INTCONbits.GIE=1;       // Habilitamos interrupcion Global.

    // Timer0, PS: 1:256, 16 bit, INTSRC, INT ON
    OpenTimer0(TIMER_INT_ON & T0_16BIT & T0_SOURCE_INT & T0_PS_1_256);
    WriteTimer0(61629);

    while(1);

}