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 * Interface for Real Time Timer (RTT) controller. 00036 * 00037 * \par Usage 00038 * 00039 * -# Changes the prescaler value of the given RTT and restarts it 00040 * using \ref RTT_SetPrescaler(). 00041 * -# Get current value of the RTT using \ref RTT_GetTime(). 00042 * -# Enables the specified RTT interrupt using \ref RTT_EnableIT(). 00043 * -# Get the status register value of the given RTT using \ref RTT_GetStatus(). 00044 * -# Configures the RTT to generate an alarm at the given time 00045 * using \ref RTT_SetAlarm(). 00046 */ 00047 00048 #ifndef _RTT_ 00049 #define _RTT_ 00050 00051 /*---------------------------------------------------------------------------- 00052 * Headers 00053 *----------------------------------------------------------------------------*/ 00054 00055 #include "chip.h" 00056 00057 #include <stdint.h> 00058 00059 /*---------------------------------------------------------------------------- 00060 * Exported functions 00061 *----------------------------------------------------------------------------*/ 00062 00063 #ifdef __cplusplus 00064 extern "C" { 00065 #endif 00066 00067 extern void RTT_SetPrescaler( Rtt* pRtt, uint16_t wPrescaler ) ; 00068 00069 extern uint32_t RTT_GetTime( Rtt* pRtt ) ; 00070 00071 extern void RTT_EnableIT( Rtt* pRtt, uint32_t dwSources ) ; 00072 00073 extern uint32_t RTT_GetStatus( Rtt *pRtt ) ; 00074 00075 extern void RTT_SetAlarm( Rtt *pRtt, uint32_t dwTime ) ; 00076 00077 #ifdef __cplusplus 00078 } 00079 #endif 00080 00081 #endif /* #ifndef RTT_H */ 00082