delay.h

单片机c语言程序设计100例--基于PIC+PROTEUS

/*********************************************************************
 *
 *                  General Delay rouines
 *
 *********************************************************************
 * FileName:        Delay.h
 * Dependencies:    Compiler.h
 * Processor:       PIC18, PIC24F, PIC24H, dsPIC30F, dsPIC33F
 * Complier:        Microchip C18 v3.02 or higher
 *					Microchip C30 v2.01 or higher
 * Company:         Microchip Technology, Inc.
 *
 * Software License Agreement
 *
 * This software is owned by Microchip Technology Inc. ("Microchip") 
 * and is supplied to you for use exclusively as described in the 
 * associated software agreement.  This software is protected by 
 * software and other intellectual property laws.  Any use in 
 * violation of the software license may subject the user to criminal 
 * sanctions as well as civil liability.  Copyright 2006 Microchip
 * Technology Inc.  All rights reserved.
 *
 * This software is provided "AS IS."  MICROCHIP DISCLAIMS ALL 
 * WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, NOT LIMITED 
 * TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND 
 * INFRINGEMENT.  Microchip shall in no event be liable for special, 
 * incidental, or consequential damages.
 *
 *
 * Author               Date    Comment
 *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Nilesh Rajbharti     5/9/02  Original        (Rev 1.0)
 * Nilesh Rajbharti     6/10/02 Fixed C18 ms and us routines
 * Howard Schlunder		4/04/06	Changed for C30
 ********************************************************************/
#ifndef DELAY_H
#define DELAY_H

#include "..\Include\Compiler.h"
#if defined(__18CXX) && !defined(HI_TECH_C)
	#include <delays.h>
#endif

#ifndef INSTR_FREQ
#error INSTR_FREQ must be defined.
#endif

#if defined(__C30__) || defined(HI_TECH_C)
	#define Delay10us(x)			\
	{								\
		unsigned long _dcnt;		\
		_dcnt=x*((unsigned long)(0.00001/(1.0/INSTR_FREQ)/6));	\
		while(_dcnt--);				\
	}
	void DelayMs(unsigned int ms);
#elif defined(__18CXX)
	#define Delay10us(us)                   Delay10TCYx(((INSTR_FREQ/1000000)*us))
	#define DelayMs(ms)                     Delay1KTCYx((((INSTR_FREQ/1000)*ms)/1000))
#endif



#endif