c/ds1621.h

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/* 
 * This file is part of AvrTherm.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Copyright (C) 2004 Andreas Schroeder <andreas@a-netz.de>
 */

#ifndef DS1621_H
#define DS1621_H

#include "globals.h"

#define DS1621_ADDR  0x9e

#define DS1621_FLAG_DONE    7

#define DS1621_FLAG_1SHOT   0


#define DS1621_CMD_START_CONVERT  0xee

#define DS1621_CMD_STOP_CONVERT   0x22

#define DS1621_CMD_READ_TEMP      0xaa

#define DS1621_CMD_ACCESS_CONFIG  0xac

#define DS1621_CMD_READ_COUNTER   0xa8

#define DS1621_CMD_READ_SLOPE     0xa9


typedef signed char temp_t;

typedef u16 hires_temp_t;

void ds1621_do_conversion(void);

temp_t ds1621_gettemp(void);

u08 ds1621_getreg(u08 cmd);

hires_temp_t ds1621_hires_gettemp(void);

#endif

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