// Copyright 2006 Yamane Akira
//ICC-AVR application builder : 2005/08/08 16:54:06
// Target : M8
// Crystal: 4.0000Mhz

#include <iom8v.h>
#include <macros.h>

void port_init(void)
{
 PORTB = 0xFF;
 DDRB  = 0xFF;
 PORTC = 0x3F; 
 DDRC  = 0x00;
 PORTD = 0xFF;
 DDRD  = 0x00;
}

//Comparator initialize
// trigger on: Output toggle
void comparator_init(void)
{
 ACSR = ACSR & 0xF7; //ensure interrupt is off before changing
 ACSR = 0x48;
}

#pragma interrupt_handler ana_comp_isr:17
void ana_comp_isr(void)
{
  if ((ACSR & (1 <<ACO)) != 0x00)
     PORTB = ~0x0F;
	  else PORTB = ~0xF0;
}

//call this routine to initialize all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();
 comparator_init();

 MCUCR = 0x00;
 GICR  = 0x00;
 TIMSK = 0x00; //timer interrupt sources
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

//
void main(void)
{
 init_devices();
 //insert your functional code here...
   while(1)
     {
	 }
}