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676 lines
22 KiB
676 lines
22 KiB
/*
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* The Clear BSD License
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* Copyright (c) 2015, Freescale Semiconductor, Inc.
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* Copyright 2016-2017 NXP
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted (subject to the limitations in the disclaimer below) provided
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* that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "fsl_rtc.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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#define SECONDS_IN_A_DAY (86400U)
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#define SECONDS_IN_A_HOUR (3600U)
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#define SECONDS_IN_A_MINUTE (60U)
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#define DAYS_IN_A_YEAR (365U)
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#define YEAR_RANGE_START (1970U)
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#define YEAR_RANGE_END (2099U)
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*!
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* @brief Checks whether the date and time passed in is valid
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*
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* @param datetime Pointer to structure where the date and time details are stored
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*
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* @return Returns false if the date & time details are out of range; true if in range
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*/
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static bool RTC_CheckDatetimeFormat(const rtc_datetime_t *datetime);
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/*!
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* @brief Converts time data from datetime to seconds
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*
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* @param datetime Pointer to datetime structure where the date and time details are stored
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*
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* @return The result of the conversion in seconds
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*/
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static uint32_t RTC_ConvertDatetimeToSeconds(const rtc_datetime_t *datetime);
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/*!
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* @brief Converts time data from seconds to a datetime structure
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*
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* @param seconds Seconds value that needs to be converted to datetime format
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* @param datetime Pointer to the datetime structure where the result of the conversion is stored
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*/
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static void RTC_ConvertSecondsToDatetime(uint32_t seconds, rtc_datetime_t *datetime);
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/*******************************************************************************
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* Code
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******************************************************************************/
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static bool RTC_CheckDatetimeFormat(const rtc_datetime_t *datetime)
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{
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assert(datetime);
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/* Table of days in a month for a non leap year. First entry in the table is not used,
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* valid months start from 1
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*/
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uint8_t daysPerMonth[] = {0U, 31U, 28U, 31U, 30U, 31U, 30U, 31U, 31U, 30U, 31U, 30U, 31U};
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/* Check year, month, hour, minute, seconds */
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if ((datetime->year < YEAR_RANGE_START) || (datetime->year > YEAR_RANGE_END) || (datetime->month > 12U) ||
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(datetime->month < 1U) || (datetime->hour >= 24U) || (datetime->minute >= 60U) || (datetime->second >= 60U))
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{
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/* If not correct then error*/
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return false;
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}
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/* Adjust the days in February for a leap year */
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if ((((datetime->year & 3U) == 0) && (datetime->year % 100 != 0)) || (datetime->year % 400 == 0))
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{
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daysPerMonth[2] = 29U;
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}
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/* Check the validity of the day */
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if ((datetime->day > daysPerMonth[datetime->month]) || (datetime->day < 1U))
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{
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return false;
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}
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return true;
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}
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static uint32_t RTC_ConvertDatetimeToSeconds(const rtc_datetime_t *datetime)
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{
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assert(datetime);
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/* Number of days from begin of the non Leap-year*/
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/* Number of days from begin of the non Leap-year*/
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uint16_t monthDays[] = {0U, 0U, 31U, 59U, 90U, 120U, 151U, 181U, 212U, 243U, 273U, 304U, 334U};
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uint32_t seconds;
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/* Compute number of days from 1970 till given year*/
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seconds = (datetime->year - 1970U) * DAYS_IN_A_YEAR;
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/* Add leap year days */
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seconds += ((datetime->year / 4) - (1970U / 4));
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/* Add number of days till given month*/
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seconds += monthDays[datetime->month];
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/* Add days in given month. We subtract the current day as it is
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* represented in the hours, minutes and seconds field*/
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seconds += (datetime->day - 1);
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/* For leap year if month less than or equal to Febraury, decrement day counter*/
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if ((!(datetime->year & 3U)) && (datetime->month <= 2U))
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{
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seconds--;
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}
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seconds = (seconds * SECONDS_IN_A_DAY) + (datetime->hour * SECONDS_IN_A_HOUR) +
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(datetime->minute * SECONDS_IN_A_MINUTE) + datetime->second;
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return seconds;
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}
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static void RTC_ConvertSecondsToDatetime(uint32_t seconds, rtc_datetime_t *datetime)
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{
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assert(datetime);
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uint32_t x;
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uint32_t secondsRemaining, days;
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uint16_t daysInYear;
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/* Table of days in a month for a non leap year. First entry in the table is not used,
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* valid months start from 1
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*/
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uint8_t daysPerMonth[] = {0U, 31U, 28U, 31U, 30U, 31U, 30U, 31U, 31U, 30U, 31U, 30U, 31U};
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/* Start with the seconds value that is passed in to be converted to date time format */
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secondsRemaining = seconds;
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/* Calcuate the number of days, we add 1 for the current day which is represented in the
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* hours and seconds field
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*/
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days = secondsRemaining / SECONDS_IN_A_DAY + 1;
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/* Update seconds left*/
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secondsRemaining = secondsRemaining % SECONDS_IN_A_DAY;
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/* Calculate the datetime hour, minute and second fields */
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datetime->hour = secondsRemaining / SECONDS_IN_A_HOUR;
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secondsRemaining = secondsRemaining % SECONDS_IN_A_HOUR;
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datetime->minute = secondsRemaining / 60U;
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datetime->second = secondsRemaining % SECONDS_IN_A_MINUTE;
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/* Calculate year */
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daysInYear = DAYS_IN_A_YEAR;
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datetime->year = YEAR_RANGE_START;
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while (days > daysInYear)
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{
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/* Decrease day count by a year and increment year by 1 */
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days -= daysInYear;
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datetime->year++;
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/* Adjust the number of days for a leap year */
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if (datetime->year & 3U)
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{
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daysInYear = DAYS_IN_A_YEAR;
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}
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else
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{
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daysInYear = DAYS_IN_A_YEAR + 1;
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}
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}
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/* Adjust the days in February for a leap year */
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if (!(datetime->year & 3U))
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{
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daysPerMonth[2] = 29U;
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}
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for (x = 1U; x <= 12U; x++)
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{
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if (days <= daysPerMonth[x])
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{
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datetime->month = x;
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break;
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}
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else
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{
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days -= daysPerMonth[x];
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}
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}
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datetime->day = days;
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}
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void RTC_Init(RTC_Type *base, const rtc_config_t *config)
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{
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assert(config);
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uint32_t reg;
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#if defined(RTC_CLOCKS)
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#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
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CLOCK_EnableClock(kCLOCK_Rtc0);
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#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
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#endif /* RTC_CLOCKS */
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/* Issue a software reset if timer is invalid */
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if (RTC_GetStatusFlags(RTC) & kRTC_TimeInvalidFlag)
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{
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RTC_Reset(RTC);
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}
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reg = base->CR;
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/* Setup the update mode and supervisor access mode */
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reg &= ~(RTC_CR_UM_MASK | RTC_CR_SUP_MASK);
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reg |= RTC_CR_UM(config->updateMode) | RTC_CR_SUP(config->supervisorAccess);
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#if defined(FSL_FEATURE_RTC_HAS_WAKEUP_PIN_SELECTION) && FSL_FEATURE_RTC_HAS_WAKEUP_PIN_SELECTION
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/* Setup the wakeup pin select */
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reg &= ~(RTC_CR_WPS_MASK);
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reg |= RTC_CR_WPS(config->wakeupSelect);
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#endif /* FSL_FEATURE_RTC_HAS_WAKEUP_PIN */
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base->CR = reg;
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/* Configure the RTC time compensation register */
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base->TCR = (RTC_TCR_CIR(config->compensationInterval) | RTC_TCR_TCR(config->compensationTime));
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#if defined(FSL_FEATURE_RTC_HAS_TSIC) && FSL_FEATURE_RTC_HAS_TSIC
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/* Configure RTC timer seconds interrupt to be generated once per second */
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base->IER &= ~(RTC_IER_TSIC_MASK | RTC_IER_TSIE_MASK);
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#endif
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}
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void RTC_GetDefaultConfig(rtc_config_t *config)
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{
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assert(config);
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/* Wakeup pin will assert if the RTC interrupt asserts or if the wakeup pin is turned on */
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config->wakeupSelect = false;
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/* Registers cannot be written when locked */
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config->updateMode = false;
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/* Non-supervisor mode write accesses are not supported and will generate a bus error */
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config->supervisorAccess = false;
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/* Compensation interval used by the crystal compensation logic */
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config->compensationInterval = 0;
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/* Compensation time used by the crystal compensation logic */
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config->compensationTime = 0;
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}
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status_t RTC_SetDatetime(RTC_Type *base, const rtc_datetime_t *datetime)
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{
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assert(datetime);
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/* Return error if the time provided is not valid */
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if (!(RTC_CheckDatetimeFormat(datetime)))
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{
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return kStatus_InvalidArgument;
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}
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/* Set time in seconds */
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base->TSR = RTC_ConvertDatetimeToSeconds(datetime);
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return kStatus_Success;
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}
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void RTC_GetDatetime(RTC_Type *base, rtc_datetime_t *datetime)
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{
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assert(datetime);
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uint32_t seconds = 0;
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seconds = base->TSR;
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RTC_ConvertSecondsToDatetime(seconds, datetime);
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}
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status_t RTC_SetAlarm(RTC_Type *base, const rtc_datetime_t *alarmTime)
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{
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assert(alarmTime);
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uint32_t alarmSeconds = 0;
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uint32_t currSeconds = 0;
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/* Return error if the alarm time provided is not valid */
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if (!(RTC_CheckDatetimeFormat(alarmTime)))
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{
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return kStatus_InvalidArgument;
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}
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alarmSeconds = RTC_ConvertDatetimeToSeconds(alarmTime);
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/* Get the current time */
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currSeconds = base->TSR;
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/* Return error if the alarm time has passed */
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if (alarmSeconds < currSeconds)
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{
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return kStatus_Fail;
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}
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/* Set alarm in seconds*/
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base->TAR = alarmSeconds;
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return kStatus_Success;
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}
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void RTC_GetAlarm(RTC_Type *base, rtc_datetime_t *datetime)
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{
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assert(datetime);
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uint32_t alarmSeconds = 0;
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/* Get alarm in seconds */
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alarmSeconds = base->TAR;
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RTC_ConvertSecondsToDatetime(alarmSeconds, datetime);
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}
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void RTC_EnableInterrupts(RTC_Type *base, uint32_t mask)
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{
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uint32_t tmp32 = 0U;
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/* RTC_IER */
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if (kRTC_TimeInvalidInterruptEnable == (kRTC_TimeInvalidInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TIIE_MASK;
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}
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if (kRTC_TimeOverflowInterruptEnable == (kRTC_TimeOverflowInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TOIE_MASK;
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}
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if (kRTC_AlarmInterruptEnable == (kRTC_AlarmInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TAIE_MASK;
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}
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if (kRTC_SecondsInterruptEnable == (kRTC_SecondsInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TSIE_MASK;
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}
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#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC)
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if (kRTC_MonotonicOverflowInterruptEnable == (kRTC_MonotonicOverflowInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_MOIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */
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base->IER |= tmp32;
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#if (defined(FSL_FEATURE_RTC_HAS_TIR) && FSL_FEATURE_RTC_HAS_TIR)
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tmp32 = 0U;
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/* RTC_TIR */
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if (kRTC_TestModeInterruptEnable == (kRTC_TestModeInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_TMIE_MASK;
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}
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if (kRTC_FlashSecurityInterruptEnable == (kRTC_FlashSecurityInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_FSIE_MASK;
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}
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#if (defined(FSL_FEATURE_RTC_HAS_TIR_TPIE) && FSL_FEATURE_RTC_HAS_TIR_TPIE)
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if (kRTC_TamperPinInterruptEnable == (kRTC_TamperPinInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_TPIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_TIR_TPIE */
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#if (defined(FSL_FEATURE_RTC_HAS_TIR_SIE) && FSL_FEATURE_RTC_HAS_TIR_SIE)
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if (kRTC_SecurityModuleInterruptEnable == (kRTC_SecurityModuleInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_SIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_TIR_SIE */
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#if (defined(FSL_FEATURE_RTC_HAS_TIR_LCIE) && FSL_FEATURE_RTC_HAS_TIR_LCIE)
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if (kRTC_LossOfClockInterruptEnable == (kRTC_LossOfClockInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_LCIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_TIR_LCIE */
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base->TIR |= tmp32;
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#endif /* FSL_FEATURE_RTC_HAS_TIR */
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}
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void RTC_DisableInterrupts(RTC_Type *base, uint32_t mask)
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{
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uint32_t tmp32 = 0U;
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/* RTC_IER */
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if (kRTC_TimeInvalidInterruptEnable == (kRTC_TimeInvalidInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TIIE_MASK;
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}
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if (kRTC_TimeOverflowInterruptEnable == (kRTC_TimeOverflowInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TOIE_MASK;
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}
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if (kRTC_AlarmInterruptEnable == (kRTC_AlarmInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TAIE_MASK;
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}
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if (kRTC_SecondsInterruptEnable == (kRTC_SecondsInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_TSIE_MASK;
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}
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#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC)
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if (kRTC_MonotonicOverflowInterruptEnable == (kRTC_MonotonicOverflowInterruptEnable & mask))
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{
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tmp32 |= RTC_IER_MOIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */
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base->IER &= (uint32_t)(~tmp32);
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#if (defined(FSL_FEATURE_RTC_HAS_TIR) && FSL_FEATURE_RTC_HAS_TIR)
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tmp32 = 0U;
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/* RTC_TIR */
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if (kRTC_TestModeInterruptEnable == (kRTC_TestModeInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_TMIE_MASK;
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}
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if (kRTC_FlashSecurityInterruptEnable == (kRTC_FlashSecurityInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_FSIE_MASK;
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}
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#if (defined(FSL_FEATURE_RTC_HAS_TIR_TPIE) && FSL_FEATURE_RTC_HAS_TIR_TPIE)
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if (kRTC_TamperPinInterruptEnable == (kRTC_TamperPinInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_TPIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_TIR_TPIE */
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#if (defined(FSL_FEATURE_RTC_HAS_TIR_SIE) && FSL_FEATURE_RTC_HAS_TIR_SIE)
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if (kRTC_SecurityModuleInterruptEnable == (kRTC_SecurityModuleInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_SIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_TIR_SIE */
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#if (defined(FSL_FEATURE_RTC_HAS_TIR_LCIE) && FSL_FEATURE_RTC_HAS_TIR_LCIE)
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if (kRTC_LossOfClockInterruptEnable == (kRTC_LossOfClockInterruptEnable & mask))
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{
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tmp32 |= RTC_TIR_LCIE_MASK;
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}
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#endif /* FSL_FEATURE_RTC_HAS_TIR_LCIE */
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base->TIR &= (uint32_t)(~tmp32);
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#endif /* FSL_FEATURE_RTC_HAS_TIR */
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}
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uint32_t RTC_GetEnabledInterrupts(RTC_Type *base)
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{
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uint32_t tmp32 = 0U;
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/* RTC_IER */
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if (RTC_IER_TIIE_MASK == (RTC_IER_TIIE_MASK & base->IER))
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{
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tmp32 |= kRTC_TimeInvalidInterruptEnable;
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}
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if (RTC_IER_TOIE_MASK == (RTC_IER_TOIE_MASK & base->IER))
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{
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tmp32 |= kRTC_TimeOverflowInterruptEnable;
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}
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if (RTC_IER_TAIE_MASK == (RTC_IER_TAIE_MASK & base->IER))
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{
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tmp32 |= kRTC_AlarmInterruptEnable;
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}
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if (RTC_IER_TSIE_MASK == (RTC_IER_TSIE_MASK & base->IER))
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{
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tmp32 |= kRTC_SecondsInterruptEnable;
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|
}
|
|
#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC)
|
|
if (RTC_IER_MOIE_MASK == (RTC_IER_MOIE_MASK & base->IER))
|
|
{
|
|
tmp32 |= kRTC_MonotonicOverflowInterruptEnable;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */
|
|
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TIR) && FSL_FEATURE_RTC_HAS_TIR)
|
|
/* RTC_TIR */
|
|
if (RTC_TIR_TMIE_MASK == (RTC_TIR_TMIE_MASK & base->TIR))
|
|
{
|
|
tmp32 |= kRTC_TestModeInterruptEnable;
|
|
}
|
|
if (RTC_TIR_FSIE_MASK == (RTC_TIR_FSIE_MASK & base->TIR))
|
|
{
|
|
tmp32 |= kRTC_FlashSecurityInterruptEnable;
|
|
}
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TIR_TPIE) && FSL_FEATURE_RTC_HAS_TIR_TPIE)
|
|
if (RTC_TIR_TPIE_MASK == (RTC_TIR_TPIE_MASK & base->TIR))
|
|
{
|
|
tmp32 |= kRTC_TamperPinInterruptEnable;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TIR_TPIE */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TIR_SIE) && FSL_FEATURE_RTC_HAS_TIR_SIE)
|
|
if (RTC_TIR_SIE_MASK == (RTC_TIR_SIE_MASK & base->TIR))
|
|
{
|
|
tmp32 |= kRTC_SecurityModuleInterruptEnable;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TIR_SIE */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TIR_LCIE) && FSL_FEATURE_RTC_HAS_TIR_LCIE)
|
|
if (RTC_TIR_LCIE_MASK == (RTC_TIR_LCIE_MASK & base->TIR))
|
|
{
|
|
tmp32 |= kRTC_LossOfClockInterruptEnable;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TIR_LCIE */
|
|
#endif /* FSL_FEATURE_RTC_HAS_TIR */
|
|
|
|
return tmp32;
|
|
}
|
|
|
|
uint32_t RTC_GetStatusFlags(RTC_Type *base)
|
|
{
|
|
uint32_t tmp32 = 0U;
|
|
|
|
/* RTC_SR */
|
|
if (RTC_SR_TIF_MASK == (RTC_SR_TIF_MASK & base->SR))
|
|
{
|
|
tmp32 |= kRTC_TimeInvalidFlag;
|
|
}
|
|
if (RTC_SR_TOF_MASK == (RTC_SR_TOF_MASK & base->SR))
|
|
{
|
|
tmp32 |= kRTC_TimeOverflowFlag;
|
|
}
|
|
if (RTC_SR_TAF_MASK == (RTC_SR_TAF_MASK & base->SR))
|
|
{
|
|
tmp32 |= kRTC_AlarmFlag;
|
|
}
|
|
#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC)
|
|
if (RTC_SR_MOF_MASK == (RTC_SR_MOF_MASK & base->SR))
|
|
{
|
|
tmp32 |= kRTC_MonotonicOverflowFlag;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_SR_TIDF) && FSL_FEATURE_RTC_HAS_SR_TIDF)
|
|
if (RTC_SR_TIDF_MASK == (RTC_SR_TIDF_MASK & base->SR))
|
|
{
|
|
tmp32 |= kRTC_TamperInterruptDetectFlag;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_SR_TIDF */
|
|
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR) && FSL_FEATURE_RTC_HAS_TDR)
|
|
/* RTC_TDR */
|
|
if (RTC_TDR_TMF_MASK == (RTC_TDR_TMF_MASK & base->TDR))
|
|
{
|
|
tmp32 |= kRTC_TestModeFlag;
|
|
}
|
|
if (RTC_TDR_FSF_MASK == (RTC_TDR_FSF_MASK & base->TDR))
|
|
{
|
|
tmp32 |= kRTC_FlashSecurityFlag;
|
|
}
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR_TPF) && FSL_FEATURE_RTC_HAS_TDR_TPF)
|
|
if (RTC_TDR_TPF_MASK == (RTC_TDR_TPF_MASK & base->TDR))
|
|
{
|
|
tmp32 |= kRTC_TamperPinFlag;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR_TPF */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR_STF) && FSL_FEATURE_RTC_HAS_TDR_STF)
|
|
if (RTC_TDR_STF_MASK == (RTC_TDR_STF_MASK & base->TDR))
|
|
{
|
|
tmp32 |= kRTC_SecurityTamperFlag;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR_STF */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR_LCTF) && FSL_FEATURE_RTC_HAS_TDR_LCTF)
|
|
if (RTC_TDR_LCTF_MASK == (RTC_TDR_LCTF_MASK & base->TDR))
|
|
{
|
|
tmp32 |= kRTC_LossOfClockTamperFlag;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR_LCTF */
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR */
|
|
|
|
return tmp32;
|
|
}
|
|
|
|
void RTC_ClearStatusFlags(RTC_Type *base, uint32_t mask)
|
|
{
|
|
/* The alarm flag is cleared by writing to the TAR register */
|
|
if (mask & kRTC_AlarmFlag)
|
|
{
|
|
base->TAR = 0U;
|
|
}
|
|
|
|
/* The timer overflow flag is cleared by initializing the TSR register.
|
|
* The time counter should be disabled for this write to be successful
|
|
*/
|
|
if (mask & kRTC_TimeOverflowFlag)
|
|
{
|
|
base->TSR = 1U;
|
|
}
|
|
|
|
/* The timer overflow flag is cleared by initializing the TSR register.
|
|
* The time counter should be disabled for this write to be successful
|
|
*/
|
|
if (mask & kRTC_TimeInvalidFlag)
|
|
{
|
|
base->TSR = 1U;
|
|
}
|
|
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR) && FSL_FEATURE_RTC_HAS_TDR)
|
|
/* To clear, write logic one to this flag after exiting from all test modes */
|
|
if (kRTC_TestModeFlag == (kRTC_TestModeFlag & mask))
|
|
{
|
|
base->TDR = RTC_TDR_TMF_MASK;
|
|
}
|
|
/* To clear, write logic one to this flag after flash security is enabled */
|
|
if (kRTC_FlashSecurityFlag == (kRTC_FlashSecurityFlag & mask))
|
|
{
|
|
base->TDR = RTC_TDR_FSF_MASK;
|
|
}
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR_TPF) && FSL_FEATURE_RTC_HAS_TDR_TPF)
|
|
/* To clear, write logic one to the corresponding flag after that tamper pin negates */
|
|
if (kRTC_TamperPinFlag == (kRTC_TamperPinFlag & mask))
|
|
{
|
|
base->TDR = RTC_TDR_TPF_MASK;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR_TPF */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR_STF) && FSL_FEATURE_RTC_HAS_TDR_STF)
|
|
/* To clear, write logic one to this flag after security module has negated its tamper detect */
|
|
if (kRTC_SecurityTamperFlag == (kRTC_SecurityTamperFlag & mask))
|
|
{
|
|
base->TDR = RTC_TDR_STF_MASK;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR_STF */
|
|
#if (defined(FSL_FEATURE_RTC_HAS_TDR_LCTF) && FSL_FEATURE_RTC_HAS_TDR_LCTF)
|
|
/* To clear, write logic one to this flag after loss of clock negates */
|
|
if (kRTC_LossOfClockTamperFlag == (kRTC_LossOfClockTamperFlag & mask))
|
|
{
|
|
base->TDR = RTC_TDR_LCTF_MASK;
|
|
}
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR_LCTF */
|
|
#endif /* FSL_FEATURE_RTC_HAS_TDR */
|
|
}
|
|
|
|
#if defined(FSL_FEATURE_RTC_HAS_MONOTONIC) && (FSL_FEATURE_RTC_HAS_MONOTONIC)
|
|
|
|
void RTC_GetMonotonicCounter(RTC_Type *base, uint64_t *counter)
|
|
{
|
|
assert(counter);
|
|
|
|
*counter = (((uint64_t)base->MCHR << 32) | ((uint64_t)base->MCLR));
|
|
}
|
|
|
|
void RTC_SetMonotonicCounter(RTC_Type *base, uint64_t counter)
|
|
{
|
|
/* Prepare to initialize the register with the new value written */
|
|
base->MER &= ~RTC_MER_MCE_MASK;
|
|
|
|
base->MCHR = (uint32_t)((counter) >> 32);
|
|
base->MCLR = (uint32_t)(counter);
|
|
}
|
|
|
|
status_t RTC_IncrementMonotonicCounter(RTC_Type *base)
|
|
{
|
|
if (base->SR & (RTC_SR_MOF_MASK | RTC_SR_TIF_MASK))
|
|
{
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
/* Prepare to switch to increment mode */
|
|
base->MER |= RTC_MER_MCE_MASK;
|
|
/* Write anything so the counter increments*/
|
|
base->MCLR = 1U;
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
#endif /* FSL_FEATURE_RTC_HAS_MONOTONIC */
|
|
|