/*****************************************************************************
  Name: Delay_Routines
  Purpose: Gathers functions used to create delays and timed effects, such
           delaying a number of milliseconds or causing an interrupt to fire
		   every 50us.
*****************************************************************************/
#ifndef __DELAY_ROUTINES__
#define __DELAY_ROUTINES__

#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/signal.h>

#include <inttypes.h>

/* #define NAME (value) -- constants go here */

/* 16-bit unsigned integer used for ms_sleep() */
volatile uint16_t ms_count;

/*
 * initialize timer 0 to generate an interrupt every millisecond.
 * this should be called for setup whenever you anticipate needing the ms_sleep
 * function (e.g., whenever the LCD will be used!)
 */
void init_timer(void);

/*
 * ms_sleep() - delay for specified number of milliseconds
 * Note: Uses timer 0!
 */
void ms_sleep(uint16_t);

#endif