00001 /* ---------------------------------------------------------------------------- 00002 * SAM Software Package License 00003 * ---------------------------------------------------------------------------- 00004 * Copyright (c) 2011, Atmel Corporation 00005 * 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions are met: 00010 * 00011 * - Redistributions of source code must retain the above copyright notice, 00012 * this list of conditions and the disclaimer below. 00013 * 00014 * Atmel's name may not be used to endorse or promote products derived from 00015 * this software without specific prior written permission. 00016 * 00017 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR 00018 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00019 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 00020 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, 00021 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00022 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 00023 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00024 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00025 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 00026 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 * ---------------------------------------------------------------------------- 00028 */ 00029 00030 /** 00031 * \file 00032 * 00033 * \par Purpose 00034 * 00035 * Methods and definitions for Global time tick and wait functions. 00036 * 00037 * Defines a common and simplest use of Time Tick, to increase tickCount 00038 * every 1ms, the application can get this value through GetTickCount(). 00039 * 00040 * \par Usage 00041 * 00042 * -# Configure the System Tick with TimeTick_Configure() when MCK changed 00043 * \note 00044 * Must be done before any invoke of GetTickCount(), Wait() or Sleep(). 00045 * -# Uses GetTickCount to get current tick value. 00046 * -# Uses Wait to wait several ms. 00047 * -# Uses Sleep to enter wait for interrupt mode to wait several ms. 00048 * 00049 */ 00050 00051 #ifndef _TIMETICK_ 00052 #define _TIMETICK_ 00053 00054 /*---------------------------------------------------------------------------- 00055 * Headers 00056 *----------------------------------------------------------------------------*/ 00057 00058 #include <stdint.h> 00059 00060 /*---------------------------------------------------------------------------- 00061 * Definitions 00062 *----------------------------------------------------------------------------*/ 00063 00064 typedef struct 00065 { 00066 volatile uint32_t *pTimer1; 00067 volatile uint32_t *pTimer2; 00068 volatile uint32_t *pTimer3; 00069 volatile uint32_t *pTimer4; 00070 }SyTickDelayCounter_t; 00071 00072 /*---------------------------------------------------------------------------- 00073 * Definitions 00074 *----------------------------------------------------------------------------*/ 00075 typedef struct _TimeEvent 00076 { 00077 uint32_t event; 00078 uint32_t time_tick; 00079 uint32_t time_start; 00080 uint32_t occur; 00081 struct _TimeEvent *pPreEvent; 00082 struct _TimeEvent *pNextEvent; 00083 }TimeEvent; 00084 00085 /*---------------------------------------------------------------------------- 00086 * Global functions 00087 *----------------------------------------------------------------------------*/ 00088 00089 uint32_t TimeTick_Configure( void ) ; 00090 00091 void TimeTick_Increment( uint32_t dwInc ) ; 00092 00093 uint32_t GetDelayInTicks(uint32_t startTick,uint32_t endTick); 00094 00095 uint32_t GetTicks(void); 00096 00097 void Wait( volatile uint32_t dwMs ) ; 00098 00099 void Sleep( volatile uint32_t dwMs ) ; 00100 00101 extern void SetTimeEvent(TimeEvent* pEvent); 00102 00103 #endif /* _TIMETICK_ */