blob: ec48a6df768320f95c3b0b18273234b43b290c50 [file] [log] [blame]
/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2009, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
/**
* \file
*
* \par Purpose
*
* Methods and definitions for Global time tick and wait functions.
*
* Defines a common and simpliest use of Time Tick, to increase tickCount
* every 1ms, the application can get this value through GetTickCount().
*
* \par Usage
*
* -# Configure the System Tick with TimeTick_Configure() when MCK changed
* \note
* Must be done before any invoke of GetTickCount(), Wait() or Sleep().
* -# Uses GetTickCount to get current tick value.
* -# Uses Wait to wait several ms.
* -# Uses Sleep to enter wait for interrupt mode to wait several ms.
*
*/
#ifndef _TIMETICK_
#define _TIMETICK_
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include <stdint.h>
/*----------------------------------------------------------------------------
* Definitions
*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
* Global functions
*----------------------------------------------------------------------------*/
extern uint32_t TimeTick_Configure( uint32_t dwNew_MCK ) ;
extern void TimeTick_Increment( void ) ;
extern uint32_t GetTickCount( void ) ;
extern uint32_t GetSecondCount( void ) ;
extern void Wait( volatile uint32_t dwMs ) ;
extern void Sleep( volatile uint32_t dwMs ) ;
#endif /* _TIMETICK_ */