Library to interface Lineair LTC2990 battery monitor.
LTC2990.h
- Committer:
- gizmo69the2nd
- Date:
- 2013-08-07
- Revision:
- 0:8cb0dbc1b2ba
File content as of revision 0:8cb0dbc1b2ba:
/* * LTC2990 voltage/temprature monitor library * * * Copyright (c) 2013 Davy Van Belle, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /** @file * @brief LTC29990 I2C */ #ifndef LTC2990_H #define LTC2990_H #include "mbed.h" #define STATUS 0x00 #define CONTROL 0x01 #define TRIGGER 0x02 #define TINT_MSB 0x04 #define TINT_LSB 0x05 #define V1_MSB 0x06 #define V1_LSB 0x07 #define V2_MSB 0x08 #define V2_LSB 0x09 #define V3_MSB 0x0A #define V3_LSB 0x0B #define V4_MSB 0x0C #define V4_LSB 0x0D #define VCC_MSB 0x0E #define VCC_LSB 0x0F #define SINGLE 0.00030518 //LSB factor for single ended measurments (305.18µV) #define DIFF 0.00001942 //LSB factor for differential measurments (19.42µV) enum T_SOURCE { INT, TR1, TR2, }; enum V_SOURCE { V1, V2, V3, V4, VCC, V1_V2, V3_V4, }; /** LTC2990 class */ class LTC2990 { public: /** init LTC2990 class * @param *i2c pointer to I2C serial interface * @param addr sensor I2C address */ LTC2990 (I2C* i2c, char addr); /** Initiate the device * @param control desired control register bits */ void init (char control); /** Get device STATUS register */ char status(); /** Start a conversion */ void start(); /** Get temperature in °C or °K * @param source define which temperature to measure (INT, TR1, TR2) */ float getTemperature(T_SOURCE source); /** Get voltage * @param source define which voltage te measure (V1, V2, V3, V4, VCC, V1-V2, V3-V4) */ float getVoltage(V_SOURCE source); /** *@param *ack pointer to return succesfull acknowledgement *@return True: Converion in progress *@return False: Acquisition Cycle Complete */ bool isBusy(); /** *@return True: Register contains new data *@return False: Register contains old data *@param source define which register to check (V1, V2, V3, V4, VCC, V1-V2, V3-V4) */ bool isReady(V_SOURCE source); /** $@return True: Register contains new data *@return False: Register contains old data *@param source define which register to check (INT, TR1, TR2) */ bool isReady(T_SOURCE source); protected: private: char _addr; I2C *_i2c; }; #endif