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New Contiki port to STM32W108.

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salvopitru 2010-10-25 09:03:38 +00:00
parent 324796cd1a
commit ec5e3ce0d7
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cpu/stm32w108/rtimer-arch.h Normal file
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/*
* Copyright (c) 2010, STMicroelectronics.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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.
*
* This file is part of the Contiki OS
*
* $Id: rtimer-arch.h,v 1.1 2010/10/25 09:03:39 salvopitru Exp $
*/
/**
* \file
* Real-timer header file for STM32W.
* \author
* Salvatore Pitrulli <salvopitru@users.sourceforge.net>
*/
#ifndef __RTIMER_ARCH_H__
#define __RTIMER_ARCH_H__
#include "contiki-conf.h"
#include "sys/clock.h"
#define RT_RESOLUTION RES_171US
#define RES_341US 0
#define RES_171US 1
#define RES_85US 2
// If it was possible to define a custom size for the rtimer_clock_t type:
//typedef unsigned long long rtimer_clock_t; // Only 48 bit are used. It's enough for hundreds of years.
#if RT_RESOLUTION == RES_341US
#define RT_PRESCALER 12 // CK_CNT = PCLK/4096 = 12 MHz/4096 = 2929.6875 Hz
#define RTIMER_ARCH_SECOND 2930 // One tick: 341.33 us. Using this value we will delay about 9.22 sec after a day.
#endif /* RT_RESOLUTION == RES_341US */
#if RT_RESOLUTION == RES_171US
#define RT_PRESCALER 11 // CK_CNT = PCLK/2048 = 12 MHz/2048 = 5859.375 Hz
#define RTIMER_ARCH_SECOND 5859 // One tick: 170.66 us. Using this value we will advance about 5.53 sec after a day.
#endif /* RT_RESOLUTION == RES_171US */
#if RT_RESOLUTION == RES_85US
#define RT_PRESCALER 10 // CK_CNT = PCLK/2048 = 12 MHz/2048 = 5859.375 Hz
#define RTIMER_ARCH_SECOND 11719 // One tick: 85.33 us. Using this value we will delay about 1.84 sec after a day.
#endif /* RT_RESOLUTION == RES_85US */
rtimer_clock_t rtimer_arch_now(void);
//#define rtimer_arch_now() clock_time()
void rtimer_arch_disable_irq(void);
void rtimer_arch_enable_irq(void);
#endif /* __RTIMER_ARCH_H__ */