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79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/* ----------------------------------------------------------------------------
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* SAM Software Package License
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* ----------------------------------------------------------------------------
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* Copyright (c) 2011, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/**
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* \file
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*
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* \par Purpose
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*
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* Methods and definitions for Global time tick and wait functions.
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*
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* Defines a common and simpliest use of Time Tick, to increase tickCount
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* every 1ms, the application can get this value through GetTickCount().
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*
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* \par Usage
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*
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* -# Configure the System Tick with TimeTick_Configure() when MCK changed
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* \note
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* Must be done before any invoke of GetTickCount(), Wait() or Sleep().
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* -# Uses GetTickCount to get current tick value.
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* -# Uses Wait to wait several ms.
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* -# Uses Sleep to enter wait for interrupt mode to wait several ms.
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*
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*/
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#ifndef _TIMETICK_
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#define _TIMETICK_
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include <stdint.h>
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/*----------------------------------------------------------------------------
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* Definitions
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*----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------
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* Global functions
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*----------------------------------------------------------------------------*/
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extern uint32_t TimeTick_Configure( uint32_t dwNew_MCK ) ;
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extern void TimeTick_Increment( void ) ;
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extern uint32_t GetTickCount( void ) ;
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extern void Wait( volatile uint32_t dwMs ) ;
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extern void Sleep( volatile uint32_t dwMs ) ;
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#endif /* _TIMETICK_ */
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