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/*
* spreadspace avr utils - usb-1wire example
*
*
* Copyright (C) 2013-2014 Bernhard Tittelbach <xro@realraum.at>
* based on code from:
* http://www.pjrc.com/teensy/td_libs_OneWire.html
*
* This file is part of spreadspace avr utils.
*
* spreadspace avr utils 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 3 of the License, or
* any later version.
*
* spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __DS1820__
#define __DS1820__
#include <stdint.h>
#define DS1820_FAMILY_ID 0x10
#define DS1820_START_CONVERSION 0x44
#define DS1820_READ_SCRATCHPAD 0xbe
#define DS1820_WRITE_SCRATCHPAD 0x4e
#define DS1820_ERROR -1000 // Return code. Outside temperature range.
#define DS1820_RESOLUTION_9BITS 0x00
#define DS1820_RESOLUTION_10BITS 0x20
#define DS1820_RESOLUTION_11BITS 0x40
#define DS1820_RESOLUTION_12BITS 0x60
#define DS1820_TCONV_MS_9BITS 96
#define DS1820_TCONV_MS_10BITS 195
#define DS1820_TCONV_MS_11BITS 390
#define DS1820_TCONV_MS_12BITS 800
#define DS2890_FAMILY_ID 0x2c
#define DS2890_WRITE_CONTROL_REGISTER 0X55
#define DS2890_RELEASE_CODE 0x96
#define DS2890_WRITE_POSITION 0x0f
#ifndef MAX_OWI_DEVICES
#define MAX_OWI_DEVICES 8
#endif
uint8_t ds1820_discover(void);
void ds1820_set_resolution(uint8_t d, uint8_t bits);
void ds1820_start_measuring(uint8_t d);
uint16_t ds1820_get_conversion_time_ms(uint8_t bits);
void ds1820_wait_conversion_time(uint8_t bits);
int16_t ds1820_read_temperature(uint8_t d);
float ds1820_raw_temp_to_celsius(int16_t t);
#endif
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