/* these two lines take care of the IO definitions for the device, and the interrupts available for them */
#include <avr/io.h>
#include <avr/interrupt.h>

/* put comments in here for future reference, showing what the device is intended to do, which
device is to be used, and the fuse settings (and why) */


/* This is a template created by cutting bits from a stepper motor drive
   Some port direction commands are included as examples */



/* Intended for ATmega168P */
/* Clock rate is 1.0 MHz  (8MHz internal oscillator (default), divide by 8 (default), to give CLKIO of 1MHz */

// Fuse high byte is default (0xDF)			See data sheet page 297

/* Fuse low byte is 0x22:  ((NB fuses active low)   See data sheet page 298
 * CLKDIV8 	0 (div8 active)
 * CLKOUT 	0 (clk out active)
 * SUT1   	1 (fast rising power)
 * SUT0 	0
 * CKSEL3	0  8MHz internal osc
 * CKSEL2	0
 * CKSEL1	1
 * CKSEL0	0
 */




/* Interrupt vectors */
// If we were using interrupts the interrupt vectors would be here
// there is a useful list at    http://www.nongnu.org/avr-libc/user-manual/group__avr__interrupts.html


/* Port direction setting */
	
inline void port_direction_init() {

/* No PORTA or PORTE on the ATMEGA168P 
   DDR is Data Direction Register
   PORT is used when referring to outputs
   PIN  is used when referring to inputs 
   See ATMEGA168P datasheet section 13  */

//	Assign all ports as inputs. 
	DDRB = 0 ;
	DDRC = 0 ;
	DDRD = 0 ;
	
// define  outputs
	DDRB |= 0  ; 	// TODO. Put a 1 in each position which needs to be an output
	
// Set high outputs

	
// set low outputs
	PORTB = 0 ;
	
}
				




int main(void) {
	
// IO port initialisation
	port_direction_init();
	

	while (1) {

// TODO put code in here


 	}
}