00001 /*! \file ds1631.h \brief Dallas DS1631 Temperature Sensor Driver Library. */ 00002 //***************************************************************************** 00003 // 00004 // File Name : 'ds1631.h' 00005 // Title : Dallas DS1631 Temperature Sensor Driver Library 00006 // Author : Pascal Stang - Copyright (C) 2004 00007 // Created : 2004.02.10 00008 // Revised : 2004.02.19 00009 // Version : 0.1 00010 // Target MCU : Atmel AVR Series 00011 // Editor Tabs : 4 00012 // 00013 // NOTE: This code is currently below version 1.0, and therefore is considered 00014 // to be lacking in some functionality or documentation, or may not be fully 00015 // tested. Nonetheless, you can expect most functions to work. 00016 // 00017 /// \ingroup driver_hw 00018 /// \defgroup ds1631 Dallas DS1631 Temperature Sensor Driver (ds1631.c) 00019 /// \code #include "ds1632.h" \endcode 00020 /// \par Overview 00021 /// This library provides high-level functions for accessing the Dallas 00022 /// Semiconductor DS1631 I2C Temperature Sensor. 00023 /// 00024 /// The basic specs of the DS1631 are: 00025 /// - operating temperature range -55 to +125 degrees C 00026 /// - high accuracy of +/-0.5C over 0 to +70 degrees C 00027 /// - 8 to 12-bit signed output 00028 /// - thermostat functionality 00029 // 00030 // This code is distributed under the GNU Public License 00031 // which can be found at http://www.gnu.org/licenses/gpl.txt 00032 // 00033 //***************************************************************************** 00034 00035 #ifndef DS1631_H 00036 #define DS1631_H 00037 00038 #include "global.h" 00039 00040 // constants/macros/typdefs 00041 #define DS1631_I2C_ADDR 0x90 ///< Base I2C address of DS1631 devices 00042 00043 #define DS1631_CMD_STARTCONV 0x51 ///< DS1631 Start conversion command byte 00044 #define DS1631_CMD_STOPCONV 0x22 ///< DS1631 Stop conversion command byte 00045 #define DS1631_CMD_READTEMP 0xAA ///< DS1631 Read Temperature command byte 00046 #define DS1631_CMD_ACCESSTH 0xA1 ///< DS1631 TH read/write command byte 00047 #define DS1631_CMD_ACCESSTL 0xA2 ///< DS1631 TL read/write command byte 00048 #define DS1631_CMD_ACCESSCONFIG 0xAC ///< DS1631 Config read/write command byte 00049 #define DS1631_CMD_SWPOR 0x54 ///< DS1631 Software Reset command byte 00050 00051 #define DS1631_CONFIG_1SHOT 0x01 00052 #define DS1631_CONFIG_POL 0x02 00053 #define DS1631_CONFIG_R0 0x04 00054 #define DS1631_CONFIG_R1 0x08 00055 #define DS1631_CONFIG_NVB 0x10 00056 #define DS1631_CONFIG_TLF 0x20 00057 #define DS1631_CONFIG_THF 0x40 00058 #define DS1631_CONFIG_DONE 0x80 00059 00060 // functions 00061 00062 //! Initialize the DS1631 chip 00063 u08 ds1631Init(u08 i2cAddr); 00064 00065 //! Reset the DS1631 chip to its power-on defaults 00066 u08 ds1631Reset(u08 i2cAddr); 00067 00068 //! Set the configuration byte of the DS1631 00069 void ds1631SetConfig(u08 i2cAddr, u08 config); 00070 00071 //! Get the configuration byte of the DS1631 00072 u08 ds1631GetConfig(u08 i2cAddr); 00073 00074 //! Start a temperature conversion 00075 void ds1631StartConvert(u08 i2cAddr); 00076 00077 //! Stop a temperature conversion (or stop continuous conversion mode) 00078 void ds1631StopConvert(u08 i2cAddr); 00079 00080 //! Read the result of a temperature conversion 00081 s16 ds1631ReadTemp(u08 i2cAddr); 00082 00083 //! Set the Temp-High threshold 00084 void ds1631SetTH(u08 i2cAddr, s16 value); 00085 00086 //! Set the Temp-Low threshold 00087 void ds1631SetTL(u08 i2cAddr, s16 value); 00088 00089 //! Get the Temp-High threshold 00090 s16 ds1631GetTH(u08 i2cAddr); 00091 00092 //! Get the Temp-Low threshold 00093 s16 ds1631GetTL(u08 i2cAddr); 00094 00095 void ds1631WriteTempReg(u08 i2cAddr, u08 cmd, s16 value); 00096 s16 ds1631ReadTempReg(u08 i2cAddr, u08 cmd); 00097 00098 00099 #endif
1.4.2