Contiki 2.6
|
00001 /* 00002 * Copyright (c) 2010, STMicroelectronics. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above 00011 * copyright notice, this list of conditions and the following 00012 * disclaimer in the documentation and/or other materials provided 00013 * with the distribution. 00014 * 3. The name of the author may not be used to endorse or promote 00015 * products derived from this software without specific prior 00016 * written permission. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 00019 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00020 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 00022 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00023 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 00024 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00025 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 00026 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00027 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00029 * 00030 * This file is part of the Contiki OS 00031 * 00032 * $Id: rtimer-arch.h,v 1.1 2010/10/25 09:03:39 salvopitru Exp $ 00033 */ 00034 00035 /** 00036 * \file 00037 * Real-timer header file for STM32W. 00038 * \author 00039 * Salvatore Pitrulli <salvopitru@users.sourceforge.net> 00040 */ 00041 00042 #ifndef __RTIMER_ARCH_H__ 00043 #define __RTIMER_ARCH_H__ 00044 00045 #include "contiki-conf.h" 00046 #include "sys/clock.h" 00047 00048 00049 //#define RT_RESOLUTION RES_85US 00050 #ifdef RT_CONF_RESOLUTION 00051 #define RT_RESOLUTION RT_CONF_RESOLUTION 00052 #else 00053 #define RT_RESOLUTION RES_171US 00054 #endif 00055 00056 #define RES_341US 0 00057 #define RES_171US 1 00058 #define RES_85US 2 00059 00060 // If it was possible to define a custom size for the rtimer_clock_t type: 00061 //typedef unsigned long long rtimer_clock_t; // Only 48 bit are used. It's enough for hundreds of years. 00062 00063 #if RT_RESOLUTION == RES_341US 00064 #define RT_PRESCALER 12 // CK_CNT = PCLK/4096 = 12 MHz/4096 = 2929.6875 Hz 00065 #define RTIMER_ARCH_SECOND 2930 // One tick: 341.33 us. Using this value we will delay about 9.22 sec after a day. 00066 #endif /* RT_RESOLUTION == RES_341US */ 00067 00068 #if RT_RESOLUTION == RES_171US 00069 #define RT_PRESCALER 11 // CK_CNT = PCLK/2048 = 12 MHz/2048 = 5859.375 Hz 00070 #define RTIMER_ARCH_SECOND 5859 // One tick: 170.66 us. Using this value we will advance about 5.53 sec after a day. 00071 #endif /* RT_RESOLUTION == RES_171US */ 00072 00073 #if RT_RESOLUTION == RES_85US 00074 #define RT_PRESCALER 10 // CK_CNT = PCLK/2048 = 12 MHz/2048 = 5859.375 Hz 00075 #define RTIMER_ARCH_SECOND 11719 // One tick: 85.33 us. Using this value we will delay about 1.84 sec after a day. 00076 #endif /* RT_RESOLUTION == RES_85US */ 00077 00078 rtimer_clock_t rtimer_arch_now(void); 00079 //#define rtimer_arch_now() clock_time() 00080 00081 void rtimer_arch_disable_irq(void); 00082 void rtimer_arch_enable_irq(void); 00083 00084 #endif /* __RTIMER_ARCH_H__ */