////////////////////////////////////////////////////////////////////////////////////////////
//  File: delay.h
//  This code is provided by Dr. Robert Reese.
//  We thank him for the use of it.
//
//
////////////////////////////////////////////////////////////////////////////////////////////
#ifndef DELAY_H

#define	FOSC	29490L	 /* Internal clock freq in KHZ*/
#define	MHZ	*1000L	 /* number of kHz in a MHz */
#define	KHZ	*1	 /* number of kHz in a kHz */


#define	DelayUs(x) { unsigned char _dcnt; \
		     _dcnt = ((x* FOSC)/(12MHZ)); \
		     while(--_dcnt != 0) \
		       continue; }

char kill_delay;

void DelayMs(unsigned char cnt)
{
	unsigned char	i;
	do {
		i = 20;
		do {
			DelayUs(50);
		} while(--i);
	} while(--cnt);
}

// should be able to handle up to 65535
void DelayMsRinging(unsigned int cnt)
{
	unsigned char	i;
	do {
		i = 20;
		do {
			DelayUs(50);
		} while(--i);
		
	} while(--cnt);
}


// use this function when need a delay loop from an ISR
// should not usually delay within an ISR but if you have too.....
void ISR_DelayMs(unsigned char cnt)
{
	unsigned char	i;
	do {
		i = 20;
		do {
			DelayUs(50);
		} while(--i);
	} while(--cnt);
}

void DelayMsKill(unsigned char cnt)
{
	unsigned char	i;
	do {
		i = 20;
		do {
			DelayUs(50);
		} while(--i && !kill_delay);
	} while(--cnt && !kill_delay);
}

extern void DelayMs(unsigned char);


#define DELAY_H 1

#endif