osd-contiki/platform/esb/dev/ds1629.h

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2006-06-18 09:49:33 +02:00
/*
* Copyright (c) 2005, Swedish Institute of Computer Science.
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 Configurable Sensor Network Application
* Architecture for sensor nodes running the Contiki operating system.
*
*
* -----------------------------------------------------------------
*
* Author : Adam Dunkels, Joakim Eriksson, Niclas Finne
* Created : 2005-11-08
* Updated : $Date: 2006/06/18 07:49:33 $
* $Revision: 1.1 $
*/
#ifndef __DS1629_H__
#define __DS1629_H__
/**
* DS1629 initialization function.
*
* This function should be called at startup to initialize the DS1629
* and its clock.
*/
void ds1629_init(void);
/**
* DS1629 start conversion function.
*
* This function should be called before requesting the temperature
* the first time.
*/
void ds1629_start(void);
/**
* Get the temperature.
*
* This function will return the current temperature as a signed 9 bit
* value in terms of a 0.5 degree Celsius least significant bit.
*
* MSB Sign 2^6 2^5 2^4 2^3 2^2 2^1 2^0
* LSB 2^-1 0 0 0 0 0 0 0
*/
signed int ds1629_temperature(void);
#endif /* __DS1629_H__ */