Fork of Ds3231 library that replaces inheritance of I2C class with a private member var of type I2C *
Dependents: ard2pmod DS3231_Alarm_Demo MAXREFDES130_131_Demo MAXREFDES130_Demo
Fork of ds3231 by
ds3231.h
- Committer:
- j3
- Date:
- 2014-11-20
- Revision:
- 4:0beb5e9ac927
- Parent:
- 3:312589d8185c
- Child:
- 5:61dfe2690360
File content as of revision 4:0beb5e9ac927:
/******************************************************************//** * @file ds3231.h * * @author Justin Jordan * * @version 0.0 * * Started: 11NOV14 * * Updated: * * @brief Header file for DS3231 class * *********************************************************************** * * @copyright * Copyright (C) 2013 Maxim Integrated Products, Inc., All Rights Reserved. * * 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 MAXIM INTEGRATED 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. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. **********************************************************************/ #ifndef DS3231_H #define DS3231_H #include "mbed.h" //7 bit I2C slave address and R/W bits #define DS3231_I2C_ADRS 0x68 #define I2C_WRITE 0 #define I2C_READ 1 #define AM_PM (1 << 5) #define MODE (1 << 6) #define DY_DT (1 << 6) #define ALRM_MASK (1 << 7) //control register bit masks #define A1IE (1 << 0) #define A2IE (1 << 1) #define INTCN (1 << 2) #define RS1 (1 << 3) #define RS2 (1 << 4) #define CONV (1 << 5) #define BBSQW (1 << 6) #define EOSC (1 << 7) //status register bit masks #define A1F (1 << 0) #define A2F (1 << 1) #define BSY (1 << 2) #define EN32KHZ (1 << 3) #define OSF (1 << 7) //enumerated registers typedef enum { SECONDS, MINUTES, HOURS, DAY, DATE, MONTH, YEAR, ALRM1_SECONDS, ALRM1_MINUTES, ALRM1_HOURS, ALRM1_DAY_DATE, ALRM2_MINUTES, ALRM2_HOURS, ALRM2_DAY_DATE, CONTROL, STATUS, AGING_OFFSET, //don't touch this register MSB_TEMP, LSB_TEMP }ds3231_regs_t; //Time data typedef struct { uint8_t seconds; //Use decimal value. Member fx's convert to BCD uint8_t minutes; //Use decimal value. Member fx's convert to BCD uint8_t hours; //Use decimal value. Member fx's convert to BCD bool am_pm; //TRUE for PM, same logic as datasheet bool mode; //TRUE for 12 hour, same logic as datasheet }ds3231_time_t; //Calendar data typedef struct { uint8_t day; //Use decimal value. Member fx's convert to BCD uint8_t date; //Use decimal value. Member fx's convert to BCD uint8_t month; //Use decimal value. Member fx's convert to BCD uint8_t year; //Use decimal value. Member fx's convert to BCD }ds3231_calendar_t; //Alarm data typedef struct { //Seconds and am1 not used for alarm2 uint8_t seconds; //Use decimal value. Member fx's convert to BCD uint8_t minutes; //Use decimal value. Member fx's convert to BCD uint8_t hours; //Use decimal value. Member fx's convert to BCD uint8_t day; //Use decimal value. Member fx's convert to BCD uint8_t date; //Use decimal value. Member fx's convert to BCD bool am1; bool am2; bool am3; bool am4; bool am_pm; //TRUE for PM, same logic as datasheet bool mode; //TRUE for 12 hour, same logic as datasheet bool dy_dt; //TRUE for Day, same logic as datasheet }ds3231_alrm_t; typedef struct { uint8_t control; //binary data uint8_t status; //binary data }ds3231_cntl_stat_t; /******************************************************************//** * Ds3231 Class **********************************************************************/ class Ds3231 : public I2C { uint8_t w_adrs, r_adrs; /**********************************************************//** * Private mmber fx, converts unsigned char to BCD * * On Entry: * @param[in] data - 0-255 * * On Exit: * @return bcd_result = BCD representation of data * **************************************************************/ uint16_t uchar_2_bcd(uint8_t data); /**********************************************************//** * Private mmber fx, converts BCD to a uint8_t * * On Entry: * @param[in] bcd - 0-99 * * On Exit: * @return rtn_val = integer rep. of BCD * **************************************************************/ uint8_t bcd_2_uchar(uint8_t bcd); public: /**********************************************************//** * Constructor for Ds3231 Class * * On Entry: * @param[in] sda - sda pin of I2C bus * @param[in] scl - scl pin of I2C bus * * On Exit: * @return none * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * @endcode **************************************************************/ Ds3231(PinName sda, PinName scl); /**********************************************************//** * Sets the time on DS3231 * Struct data is in integrer format, not BCD. Fx will convert * to BCD for you. * * On Entry: * @param[in] time - struct cotaining time data; * * On Exit: * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //time = 12:00:00 AM 12hr mode * ds3231_time_t time = {12, 0, 0, 0, 1} * uint16_t rtn_val; * * rtn_val = rtc.set_time(time); * * @endcode **************************************************************/ uint16_t set_time(ds3231_time_t time); /**********************************************************//** * Sets the calendar on DS3231 * * On Entry: * @param[in] calendar - struct cotaining calendar data * * On Exit: * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //see datasheet for calendar format * ds3231_calendar_t calendar = {1, 1, 1, 0}; * uint16_t rtn_val; * * rtn_val = rtc.set_calendar(calendar); * * @endcode **************************************************************/ uint16_t set_calendar(ds3231_calendar_t calendar); /**********************************************************//** * Set either Alarm1 or Alarm2 of DS3231 * * On Entry: * @param[in] alarm - struct cotaining alarm data * * @param[in] one_r_two - TRUE for Alarm1 and FALSE for * Alarm2 * * On Exit: * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //see ds3231.h for .members and datasheet for alarm format * ds3231_alrm_t alarm; * uint16_t rtn_val; * * rtn_val = rtc.set_alarm(alarm, FALSE); * * @endcode **************************************************************/ uint16_t set_alarm(ds3231_alrm_t alarm, bool one_r_two); /**********************************************************//** * Set control and status registers of DS3231 * * On Entry: * @param[in] data - Struct containing control and status * register data * * On Exit: * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //do not use 0xAA, see datasheet for appropriate data * ds3231_cntl_stat_t data = {0xAA, 0xAA}; * * rtn_val = rtc.set_cntl_stat_reg(data); * * @endcode **************************************************************/ uint16_t set_cntl_stat_reg(ds3231_cntl_stat_t data); /**********************************************************//** * Gets the time on DS3231 * * On Entry: * @param[in] time - pointer to struct for storing time data * * On Exit: * @param[out] time - contains current integrer rtc time * data * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //time = 12:00:00 AM 12hr mode * ds3231_time_t time = {12, 0, 0, 0, 1} * uint16_t rtn_val; * * rtn_val = rtc.get_time(&time); * * @endcode **************************************************************/ uint16_t get_time(ds3231_time_t* time); /**********************************************************//** * Gets the calendar on DS3231 * * On Entry: * @param[in] calendar - pointer to struct for storing * calendar data * * On Exit: * @param[out] calendar - contains current integer rtc * calendar data * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //see datasheet for calendar format * ds3231_calendar_t calendar = {1, 1, 1, 0}; * uint16_t rtn_val; * * rtn_val = rtc.get_calendar(&calendar); * * @endcode **************************************************************/ uint16_t get_calendar(ds3231_calendar_t* calendar); /**********************************************************//** * Get either Alarm1 or Alarm2 of DS3231 * * On Entry: * @param[in] alarm - pointer to struct for storing alarm * data; * * @param[in] one_r_two - TRUE for Alarm1 and FALSE for * Alarm2 * * On Exit: * @param[out] alarm - contains integer alarm data * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //see ds3231.h for .members and datasheet for alarm format * ds3231_alrm_t alarm; * uint16_t rtn_val; * * rtn_val = rtc.get_alarm(&alarm, FALSE); * * @endcode **************************************************************/ uint16_t get_alarm(ds3231_alrm_t* alarm, bool one_r_two); /**********************************************************//** * Get control and status registers of DS3231 * * On Entry: * @param[in] data - pointer to struct for storing control * and status register data * * On Exit: * @param[out] data - contains control and status registers * data * @return return value = 0 on success, non-0 on failure * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * //do not use 0xAA, see datasheet for appropriate data * ds3231_cntl_stat_t data = {0xAA, 0xAA}; * * rtn_val = rtc.get_cntl_stat_reg(&data); * * @endcode **************************************************************/ uint16_t get_cntl_stat_reg(ds3231_cntl_stat_t* data); /**********************************************************//** * Get temperature data of DS3231 * * On Entry: * * On Exit: * @return return value = raw temperature data * * Example: * @code * * //instantiate rtc object * Ds3231 rtc(D14, D15); * * uint16_t temp; * * temp = rtc.get_temperature(); * * @endcode **************************************************************/ uint16_t get_temperature(void); }; #endif /* DS3231_H*/