【经验分享】STM32 RTC相关函数和类型

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STMCU小助手发布时间：2022-6-14 14:01

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文章简介:	STM32 RTC相关函数和类型

01. 概述
RTC相关函数和类型主要在stm32f4xx_rtc.h和stm32f4xx_rtc.c文件中。

02. 相关类型

/**
* @brief RTC Init structures definition
*/
typedef struct
{
uint32_t RTC_HourFormat; /*!< Specifies the RTC Hour Format.
This parameter can be a value of @ref RTC_Hour_Formats */
uint32_t RTC_AsynchPrediv; /*!< Specifies the RTC Asynchronous Predivider value.
This parameter must be set to a value lower than 0x7F */
uint32_t RTC_SynchPrediv; /*!< Specifies the RTC Synchronous Predivider value.
This parameter must be set to a value lower than 0x7FFF */
}RTC_InitTypeDef;
/**
* @brief RTC Time structure definition
*/
typedef struct
{
uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
This parameter must be set to a value in the 0-12 range
if the RTC_HourFormat_12 is selected or 0-23 range if
the RTC_HourFormat_24 is selected. */
uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.
This parameter must be set to a value in the 0-59 range. */
uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.
This parameter must be set to a value in the 0-59 range. */
uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.
This parameter can be a value of @ref RTC_AM_PM_Definitions */
}RTC_TimeTypeDef;
/**
* @brief RTC Date structure definition
*/
typedef struct
{
uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
This parameter can be a value of @ref RTC_WeekDay_Definitions */
uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format).
This parameter can be a value of @ref RTC_Month_Date_Definitions */
uint8_t RTC_Date; /*!< Specifies the RTC Date.
This parameter must be set to a value in the 1-31 range. */
uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
This parameter must be set to a value in the 0-99 range. */
}RTC_DateTypeDef;
/**
* @brief RTC Alarm structure definition
*/
typedef struct
{
RTC_TimeTypeDef RTC_AlarmTime; /*!< Specifies the RTC Alarm Time members. */
uint32_t RTC_AlarmMask; /*!< Specifies the RTC Alarm Masks.
This parameter can be a value of @ref RTC_AlarmMask_Definitions */
uint32_t RTC_AlarmDateWeekDaySel; /*!< Specifies the RTC Alarm is on Date or WeekDay.
This parameter can be a value of @ref RTC_AlarmDateWeekDay_Definitions */
uint8_t RTC_AlarmDateWeekDay; /*!< Specifies the RTC Alarm Date/WeekDay.
If the Alarm Date is selected, this parameter
must be set to a value in the 1-31 range.
If the Alarm WeekDay is selected, this
parameter can be a value of @ref RTC_WeekDay_Definitions */
}RTC_AlarmTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup RTC_Exported_Constants
* @{
*/
/** @defgroup RTC_Hour_Formats
* @{
*/
#define RTC_HourFormat_24 ((uint32_t)0x00000000)
#define RTC_HourFormat_12 ((uint32_t)0x00000040)
#define IS_RTC_HOUR_FORMAT(FORMAT) (((FORMAT) == RTC_HourFormat_12) || \
((FORMAT) == RTC_HourFormat_24))
/**
* @}
*/
/** @defgroup RTC_Asynchronous_Predivider
* @{
*/
#define IS_RTC_ASYNCH_PREDIV(PREDIV) ((PREDIV) <= 0x7F)
/**
* @}
*/
/** @defgroup RTC_Synchronous_Predivider
* @{
*/
#define IS_RTC_SYNCH_PREDIV(PREDIV) ((PREDIV) <= 0x7FFF)
/**
* @}
*/
/** @defgroup RTC_Time_Definitions
* @{
*/
#define IS_RTC_HOUR12(HOUR) (((HOUR) > 0) && ((HOUR) <= 12))
#define IS_RTC_HOUR24(HOUR) ((HOUR) <= 23)
#define IS_RTC_MINUTES(MINUTES) ((MINUTES) <= 59)
#define IS_RTC_SECONDS(SECONDS) ((SECONDS) <= 59)
/**
* @}
*/
/** @defgroup RTC_AM_PM_Definitions
* @{
*/
#define RTC_H12_AM ((uint8_t)0x00)
#define RTC_H12_PM ((uint8_t)0x40)
#define IS_RTC_H12(PM) (((PM) == RTC_H12_AM) || ((PM) == RTC_H12_PM))
/**
* @}
*/
/** @defgroup RTC_Year_Date_Definitions
* @{
*/
#define IS_RTC_YEAR(YEAR) ((YEAR) <= 99)
/**
* @}
*/
/** @defgroup RTC_Month_Date_Definitions
* @{
*/
/* Coded in BCD format */
#define RTC_Month_January ((uint8_t)0x01)
#define RTC_Month_February ((uint8_t)0x02)
#define RTC_Month_March ((uint8_t)0x03)
#define RTC_Month_April ((uint8_t)0x04)
#define RTC_Month_May ((uint8_t)0x05)
#define RTC_Month_June ((uint8_t)0x06)
#define RTC_Month_July ((uint8_t)0x07)
#define RTC_Month_August ((uint8_t)0x08)
#define RTC_Month_September ((uint8_t)0x09)
#define RTC_Month_October ((uint8_t)0x10)
#define RTC_Month_November ((uint8_t)0x11)
#define RTC_Month_December ((uint8_t)0x12)
#define IS_RTC_MONTH(MONTH) (((MONTH) >= 1) && ((MONTH) <= 12))
#define IS_RTC_DATE(DATE) (((DATE) >= 1) && ((DATE) <= 31))
/**
* @}
*/
/** @defgroup RTC_WeekDay_Definitions
* @{
*/
#define RTC_Weekday_Monday ((uint8_t)0x01)
#define RTC_Weekday_Tuesday ((uint8_t)0x02)
#define RTC_Weekday_Wednesday ((uint8_t)0x03)
#define RTC_Weekday_Thursday ((uint8_t)0x04)
#define RTC_Weekday_Friday ((uint8_t)0x05)
#define RTC_Weekday_Saturday ((uint8_t)0x06)
#define RTC_Weekday_Sunday ((uint8_t)0x07)
#define IS_RTC_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_Weekday_Monday) || \
((WEEKDAY) == RTC_Weekday_Tuesday) || \
((WEEKDAY) == RTC_Weekday_Wednesday) || \
((WEEKDAY) == RTC_Weekday_Thursday) || \
((WEEKDAY) == RTC_Weekday_Friday) || \
((WEEKDAY) == RTC_Weekday_Saturday) || \
((WEEKDAY) == RTC_Weekday_Sunday))
/**
* @}
*/
/** @defgroup RTC_Alarm_Definitions
* @{
*/
#define IS_RTC_ALARM_DATE_WEEKDAY_DATE(DATE) (((DATE) > 0) && ((DATE) <= 31))
#define IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_Weekday_Monday) || \
((WEEKDAY) == RTC_Weekday_Tuesday) || \
((WEEKDAY) == RTC_Weekday_Wednesday) || \
((WEEKDAY) == RTC_Weekday_Thursday) || \
((WEEKDAY) == RTC_Weekday_Friday) || \
((WEEKDAY) == RTC_Weekday_Saturday) || \
((WEEKDAY) == RTC_Weekday_Sunday))
/**
* @}
*/
/** @defgroup RTC_AlarmDateWeekDay_Definitions
* @{
*/
#define RTC_AlarmDateWeekDaySel_Date ((uint32_t)0x00000000)
#define RTC_AlarmDateWeekDaySel_WeekDay ((uint32_t)0x40000000)
#define IS_RTC_ALARM_DATE_WEEKDAY_SEL(SEL) (((SEL) == RTC_AlarmDateWeekDaySel_Date) || \
((SEL) == RTC_AlarmDateWeekDaySel_WeekDay))
/**
* @}
*/
/** @defgroup RTC_AlarmMask_Definitions
* @{
*/
#define RTC_AlarmMask_None ((uint32_t)0x00000000)
#define RTC_AlarmMask_DateWeekDay ((uint32_t)0x80000000)
#define RTC_AlarmMask_Hours ((uint32_t)0x00800000)
#define RTC_AlarmMask_Minutes ((uint32_t)0x00008000)
#define RTC_AlarmMask_Seconds ((uint32_t)0x00000080)
#define RTC_AlarmMask_All ((uint32_t)0x80808080)
#define IS_ALARM_MASK(MASK) (((MASK) & 0x7F7F7F7F) == (uint32_t)RESET)
/**
* @}
*/
/** @defgroup RTC_Alarms_Definitions
* @{
*/
#define RTC_Alarm_A ((uint32_t)0x00000100)
#define RTC_Alarm_B ((uint32_t)0x00000200)
#define IS_RTC_ALARM(ALARM) (((ALARM) == RTC_Alarm_A) || ((ALARM) == RTC_Alarm_B))
#define IS_RTC_CMD_ALARM(ALARM) (((ALARM) & (RTC_Alarm_A | RTC_Alarm_B)) != (uint32_t)RESET)
/**
* @}
*/
/** @defgroup RTC_Alarm_Sub_Seconds_Masks_Definitions
* @{
*/
#define RTC_AlarmSubSecondMask_All ((uint32_t)0x00000000) /*!< All Alarm SS fields are masked.
There is no comparison on sub seconds
for Alarm */
#define RTC_AlarmSubSecondMask_SS14_1 ((uint32_t)0x01000000) /*!< SS[14:1] are don't care in Alarm
comparison. Only SS[0] is compared. */
#define RTC_AlarmSubSecondMask_SS14_2 ((uint32_t)0x02000000) /*!< SS[14:2] are don't care in Alarm
comparison. Only SS[1:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_3 ((uint32_t)0x03000000) /*!< SS[14:3] are don't care in Alarm
comparison. Only SS[2:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_4 ((uint32_t)0x04000000) /*!< SS[14:4] are don't care in Alarm
comparison. Only SS[3:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_5 ((uint32_t)0x05000000) /*!< SS[14:5] are don't care in Alarm
comparison. Only SS[4:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_6 ((uint32_t)0x06000000) /*!< SS[14:6] are don't care in Alarm
comparison. Only SS[5:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_7 ((uint32_t)0x07000000) /*!< SS[14:7] are don't care in Alarm
comparison. Only SS[6:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_8 ((uint32_t)0x08000000) /*!< SS[14:8] are don't care in Alarm
comparison. Only SS[7:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_9 ((uint32_t)0x09000000) /*!< SS[14:9] are don't care in Alarm
comparison. Only SS[8:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_10 ((uint32_t)0x0A000000) /*!< SS[14:10] are don't care in Alarm
comparison. Only SS[9:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_11 ((uint32_t)0x0B000000) /*!< SS[14:11] are don't care in Alarm
comparison. Only SS[10:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_12 ((uint32_t)0x0C000000) /*!< SS[14:12] are don't care in Alarm
comparison.Only SS[11:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_13 ((uint32_t)0x0D000000) /*!< SS[14:13] are don't care in Alarm
comparison. Only SS[12:0] are compared */
#define RTC_AlarmSubSecondMask_SS14 ((uint32_t)0x0E000000) /*!< SS[14] is don't care in Alarm
comparison.Only SS[13:0] are compared */
#define RTC_AlarmSubSecondMask_None ((uint32_t)0x0F000000) /*!< SS[14:0] are compared and must match
to activate alarm. */
#define IS_RTC_ALARM_SUB_SECOND_MASK(MASK) (((MASK) == RTC_AlarmSubSecondMask_All) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_1) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_2) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_3) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_4) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_5) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_6) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_7) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_8) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_9) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_10) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_11) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_12) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_13) || \
((MASK) == RTC_AlarmSubSecondMask_SS14) || \
((MASK) == RTC_AlarmSubSecondMask_None))
/**
* @}
*/
/** @defgroup RTC_Alarm_Sub_Seconds_Value
* @{
*/
#define IS_RTC_ALARM_SUB_SECOND_VALUE(VALUE) ((VALUE) <= 0x00007FFF)
/**
* @}
*/
/** @defgroup RTC_Wakeup_Timer_Definitions
* @{
*/
#define RTC_WakeUpClock_RTCCLK_Div16 ((uint32_t)0x00000000)
#define RTC_WakeUpClock_RTCCLK_Div8 ((uint32_t)0x00000001)
#define RTC_WakeUpClock_RTCCLK_Div4 ((uint32_t)0x00000002)
#define RTC_WakeUpClock_RTCCLK_Div2 ((uint32_t)0x00000003)
#define RTC_WakeUpClock_CK_SPRE_16bits ((uint32_t)0x00000004)
#define RTC_WakeUpClock_CK_SPRE_17bits ((uint32_t)0x00000006)
#define IS_RTC_WAKEUP_CLOCK(CLOCK) (((CLOCK) == RTC_WakeUpClock_RTCCLK_Div16) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div8) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div4) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div2) || \
((CLOCK) == RTC_WakeUpClock_CK_SPRE_16bits) || \
((CLOCK) == RTC_WakeUpClock_CK_SPRE_17bits))
#define IS_RTC_WAKEUP_COUNTER(COUNTER) ((COUNTER) <= 0xFFFF)
/**
* @}
*/
/** @defgroup RTC_Time_Stamp_Edges_definitions
* @{
*/
#define RTC_TimeStampEdge_Rising ((uint32_t)0x00000000)
#define RTC_TimeStampEdge_Falling ((uint32_t)0x00000008)
#define IS_RTC_TIMESTAMP_EDGE(EDGE) (((EDGE) == RTC_TimeStampEdge_Rising) || \
((EDGE) == RTC_TimeStampEdge_Falling))
/**
* @}
*/
/** @defgroup RTC_Output_selection_Definitions
* @{
*/
#define RTC_Output_Disable ((uint32_t)0x00000000)
#define RTC_Output_AlarmA ((uint32_t)0x00200000)
#define RTC_Output_AlarmB ((uint32_t)0x00400000)
#define RTC_Output_WakeUp ((uint32_t)0x00600000)
#define IS_RTC_OUTPUT(OUTPUT) (((OUTPUT) == RTC_Output_Disable) || \
((OUTPUT) == RTC_Output_AlarmA) || \
((OUTPUT) == RTC_Output_AlarmB) || \
((OUTPUT) == RTC_Output_WakeUp))
/**
* @}
*/
/** @defgroup RTC_Output_Polarity_Definitions
* @{
*/
#define RTC_OutputPolarity_High ((uint32_t)0x00000000)
#define RTC_OutputPolarity_Low ((uint32_t)0x00100000)
#define IS_RTC_OUTPUT_POL(POL) (((POL) == RTC_OutputPolarity_High) || \
((POL) == RTC_OutputPolarity_Low))
/**
* @}
*/
/** @defgroup RTC_Digital_Calibration_Definitions
* @{
*/
#define RTC_CalibSign_Positive ((uint32_t)0x00000000)
#define RTC_CalibSign_Negative ((uint32_t)0x00000080)
#define IS_RTC_CALIB_SIGN(SIGN) (((SIGN) == RTC_CalibSign_Positive) || \
((SIGN) == RTC_CalibSign_Negative))
#define IS_RTC_CALIB_VALUE(VALUE) ((VALUE) < 0x20)
/**
* @}
*/
/** @defgroup RTC_Calib_Output_selection_Definitions
* @{
*/
#define RTC_CalibOutput_512Hz ((uint32_t)0x00000000)
#define RTC_CalibOutput_1Hz ((uint32_t)0x00080000)
#define IS_RTC_CALIB_OUTPUT(OUTPUT) (((OUTPUT) == RTC_CalibOutput_512Hz) || \
((OUTPUT) == RTC_CalibOutput_1Hz))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_period_Definitions
* @{
*/
#define RTC_SmoothCalibPeriod_32sec ((uint32_t)0x00000000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 32s, else 2exp20 RTCCLK seconds */
#define RTC_SmoothCalibPeriod_16sec ((uint32_t)0x00002000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 16s, else 2exp19 RTCCLK seconds */
#define RTC_SmoothCalibPeriod_8sec ((uint32_t)0x00004000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 8s, else 2exp18 RTCCLK seconds */
#define IS_RTC_SMOOTH_CALIB_PERIOD(PERIOD) (((PERIOD) == RTC_SmoothCalibPeriod_32sec) || \
((PERIOD) == RTC_SmoothCalibPeriod_16sec) || \
((PERIOD) == RTC_SmoothCalibPeriod_8sec))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_Plus_pulses_Definitions
* @{
*/
#define RTC_SmoothCalibPlusPulses_Set ((uint32_t)0x00008000) /*!< The number of RTCCLK pulses added
during a X -second window = Y - CALM[8:0].
with Y = 512, 256, 128 when X = 32, 16, 8 */
#define RTC_SmoothCalibPlusPulses_Reset ((uint32_t)0x00000000) /*!< The number of RTCCLK pulses subbstited
during a 32-second window = CALM[8:0]. */
#define IS_RTC_SMOOTH_CALIB_PLUS(PLUS) (((PLUS) == RTC_SmoothCalibPlusPulses_Set) || \
((PLUS) == RTC_SmoothCalibPlusPulses_Reset))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_Minus_pulses_Definitions
* @{
*/
#define IS_RTC_SMOOTH_CALIB_MINUS(VALUE) ((VALUE) <= 0x000001FF)
/**
* @}
*/
/** @defgroup RTC_DayLightSaving_Definitions
* @{
*/
#define RTC_DayLightSaving_SUB1H ((uint32_t)0x00020000)
#define RTC_DayLightSaving_ADD1H ((uint32_t)0x00010000)
#define IS_RTC_DAYLIGHT_SAVING(SAVE) (((SAVE) == RTC_DayLightSaving_SUB1H) || \
((SAVE) == RTC_DayLightSaving_ADD1H))
#define RTC_StoreOperation_Reset ((uint32_t)0x00000000)
#define RTC_StoreOperation_Set ((uint32_t)0x00040000)
#define IS_RTC_STORE_OPERATION(OPERATION) (((OPERATION) == RTC_StoreOperation_Reset) || \
((OPERATION) == RTC_StoreOperation_Set))
/**
* @}
*/
/** @defgroup RTC_Tamper_Trigger_Definitions
* @{
*/
#define RTC_TamperTrigger_RisingEdge ((uint32_t)0x00000000)
#define RTC_TamperTrigger_FallingEdge ((uint32_t)0x00000001)
#define RTC_TamperTrigger_LowLevel ((uint32_t)0x00000000)
#define RTC_TamperTrigger_HighLevel ((uint32_t)0x00000001)
#define IS_RTC_TAMPER_TRIGGER(TRIGGER) (((TRIGGER) == RTC_TamperTrigger_RisingEdge) || \
((TRIGGER) == RTC_TamperTrigger_FallingEdge) || \
((TRIGGER) == RTC_TamperTrigger_LowLevel) || \
((TRIGGER) == RTC_TamperTrigger_HighLevel))
/**
* @}
*/
/** @defgroup RTC_Tamper_Filter_Definitions
* @{
*/
#define RTC_TamperFilter_Disable ((uint32_t)0x00000000) /*!< Tamper filter is disabled */
#define RTC_TamperFilter_2Sample ((uint32_t)0x00000800) /*!< Tamper is activated after 2
consecutive samples at the active level */
#define RTC_TamperFilter_4Sample ((uint32_t)0x00001000) /*!< Tamper is activated after 4
consecutive samples at the active level */
#define RTC_TamperFilter_8Sample ((uint32_t)0x00001800) /*!< Tamper is activated after 8
consecutive samples at the active leve. */
#define IS_RTC_TAMPER_FILTER(FILTER) (((FILTER) == RTC_TamperFilter_Disable) || \
((FILTER) == RTC_TamperFilter_2Sample) || \
((FILTER) == RTC_TamperFilter_4Sample) || \
((FILTER) == RTC_TamperFilter_8Sample))
/**
* @}
*/
/** @defgroup RTC_Tamper_Sampling_Frequencies_Definitions
* @{
*/
#define RTC_TamperSamplingFreq_RTCCLK_Div32768 ((uint32_t)0x00000000) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 32768 */
#define RTC_TamperSamplingFreq_RTCCLK_Div16384 ((uint32_t)0x000000100) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 16384 */
#define RTC_TamperSamplingFreq_RTCCLK_Div8192 ((uint32_t)0x00000200) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 8192 */
#define RTC_TamperSamplingFreq_RTCCLK_Div4096 ((uint32_t)0x00000300) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 4096 */
#define RTC_TamperSamplingFreq_RTCCLK_Div2048 ((uint32_t)0x00000400) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 2048 */
#define RTC_TamperSamplingFreq_RTCCLK_Div1024 ((uint32_t)0x00000500) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 1024 */
#define RTC_TamperSamplingFreq_RTCCLK_Div512 ((uint32_t)0x00000600) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 512 */
#define RTC_TamperSamplingFreq_RTCCLK_Div256 ((uint32_t)0x00000700) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 256 */
#define IS_RTC_TAMPER_SAMPLING_FREQ(FREQ) (((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div32768) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div16384) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div8192) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div4096) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div2048) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div1024) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div512) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div256))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pin_Precharge_Duration_Definitions
* @{
*/
#define RTC_TamperPrechargeDuration_1RTCCLK ((uint32_t)0x00000000) /*!< Tamper pins are pre-charged before
sampling during 1 RTCCLK cycle */
#define RTC_TamperPrechargeDuration_2RTCCLK ((uint32_t)0x00002000) /*!< Tamper pins are pre-charged before
sampling during 2 RTCCLK cycles */
#define RTC_TamperPrechargeDuration_4RTCCLK ((uint32_t)0x00004000) /*!< Tamper pins are pre-charged before
sampling during 4 RTCCLK cycles */
#define RTC_TamperPrechargeDuration_8RTCCLK ((uint32_t)0x00006000) /*!< Tamper pins are pre-charged before
sampling during 8 RTCCLK cycles */
#define IS_RTC_TAMPER_PRECHARGE_DURATION(DURATION) (((DURATION) == RTC_TamperPrechargeDuration_1RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_2RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_4RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_8RTCCLK))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pins_Definitions
* @{
*/
#define RTC_Tamper_1 RTC_TAFCR_TAMP1E
#define IS_RTC_TAMPER(TAMPER) (((TAMPER) == RTC_Tamper_1))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pin_Selection
* @{
*/
#define RTC_TamperPin_PC13 ((uint32_t)0x00000000)
#define RTC_TamperPin_PI8 ((uint32_t)0x00010000)
#define IS_RTC_TAMPER_PIN(PIN) (((PIN) == RTC_TamperPin_PC13) || \
((PIN) == RTC_TamperPin_PI8))
/**
* @}
*/
/** @defgroup RTC_TimeStamp_Pin_Selection
* @{
*/
#define RTC_TimeStampPin_PC13 ((uint32_t)0x00000000)
#define RTC_TimeStampPin_PI8 ((uint32_t)0x00020000)
#define IS_RTC_TIMESTAMP_PIN(PIN) (((PIN) == RTC_TimeStampPin_PC13) || \
((PIN) == RTC_TimeStampPin_PI8))
/**
* @}
*/
/** @defgroup RTC_Output_Type_ALARM_OUT
* @{
*/
#define RTC_OutputType_OpenDrain ((uint32_t)0x00000000)
#define RTC_OutputType_PushPull ((uint32_t)0x00040000)
#define IS_RTC_OUTPUT_TYPE(TYPE) (((TYPE) == RTC_OutputType_OpenDrain) || \
((TYPE) == RTC_OutputType_PushPull))
/**
* @}
*/
/** @defgroup RTC_Add_1_Second_Parameter_Definitions
* @{
*/
#define RTC_ShiftAdd1S_Reset ((uint32_t)0x00000000)
#define RTC_ShiftAdd1S_Set ((uint32_t)0x80000000)
#define IS_RTC_SHIFT_ADD1S(SEL) (((SEL) == RTC_ShiftAdd1S_Reset) || \
((SEL) == RTC_ShiftAdd1S_Set))
/**
* @}
*/
/** @defgroup RTC_Substract_Fraction_Of_Second_Value
* @{
*/
#define IS_RTC_SHIFT_SUBFS(FS) ((FS) <= 0x00007FFF)
/**
* @}
*/
/** @defgroup RTC_Backup_Registers_Definitions
* @{
*/
#define RTC_BKP_DR0 ((uint32_t)0x00000000)
#define RTC_BKP_DR1 ((uint32_t)0x00000001)
#define RTC_BKP_DR2 ((uint32_t)0x00000002)
#define RTC_BKP_DR3 ((uint32_t)0x00000003)
#define RTC_BKP_DR4 ((uint32_t)0x00000004)
#define RTC_BKP_DR5 ((uint32_t)0x00000005)
#define RTC_BKP_DR6 ((uint32_t)0x00000006)
#define RTC_BKP_DR7 ((uint32_t)0x00000007)
#define RTC_BKP_DR8 ((uint32_t)0x00000008)
#define RTC_BKP_DR9 ((uint32_t)0x00000009)
#define RTC_BKP_DR10 ((uint32_t)0x0000000A)
#define RTC_BKP_DR11 ((uint32_t)0x0000000B)
#define RTC_BKP_DR12 ((uint32_t)0x0000000C)
#define RTC_BKP_DR13 ((uint32_t)0x0000000D)
#define RTC_BKP_DR14 ((uint32_t)0x0000000E)
#define RTC_BKP_DR15 ((uint32_t)0x0000000F)
#define RTC_BKP_DR16 ((uint32_t)0x00000010)
#define RTC_BKP_DR17 ((uint32_t)0x00000011)
#define RTC_BKP_DR18 ((uint32_t)0x00000012)
#define RTC_BKP_DR19 ((uint32_t)0x00000013)
#define IS_RTC_BKP(BKP) (((BKP) == RTC_BKP_DR0) || \
((BKP) == RTC_BKP_DR1) || \
((BKP) == RTC_BKP_DR2) || \
((BKP) == RTC_BKP_DR3) || \
((BKP) == RTC_BKP_DR4) || \
((BKP) == RTC_BKP_DR5) || \
((BKP) == RTC_BKP_DR6) || \
((BKP) == RTC_BKP_DR7) || \
((BKP) == RTC_BKP_DR8) || \
((BKP) == RTC_BKP_DR9) || \
((BKP) == RTC_BKP_DR10) || \
((BKP) == RTC_BKP_DR11) || \
((BKP) == RTC_BKP_DR12) || \
((BKP) == RTC_BKP_DR13) || \
((BKP) == RTC_BKP_DR14) || \
((BKP) == RTC_BKP_DR15) || \
((BKP) == RTC_BKP_DR16) || \
((BKP) == RTC_BKP_DR17) || \
((BKP) == RTC_BKP_DR18) || \
((BKP) == RTC_BKP_DR19))
/**
* @}
*/
/** @defgroup RTC_Input_parameter_format_definitions
* @{
*/
#define RTC_Format_BIN ((uint32_t)0x000000000)
#define RTC_Format_BCD ((uint32_t)0x000000001)
#define IS_RTC_FORMAT(FORMAT) (((FORMAT) == RTC_Format_BIN) || ((FORMAT) == RTC_Format_BCD))
/**
* @}
*/
/** @defgroup RTC_Flags_Definitions
* @{
*/
#define RTC_FLAG_RECALPF ((uint32_t)0x00010000)
#define RTC_FLAG_TAMP1F ((uint32_t)0x00002000)
#define RTC_FLAG_TSOVF ((uint32_t)0x00001000)
#define RTC_FLAG_TSF ((uint32_t)0x00000800)
#define RTC_FLAG_WUTF ((uint32_t)0x00000400)
#define RTC_FLAG_ALRBF ((uint32_t)0x00000200)
#define RTC_FLAG_ALRAF ((uint32_t)0x00000100)
#define RTC_FLAG_INITF ((uint32_t)0x00000040)
#define RTC_FLAG_RSF ((uint32_t)0x00000020)
#define RTC_FLAG_INITS ((uint32_t)0x00000010)
#define RTC_FLAG_SHPF ((uint32_t)0x00000008)
#define RTC_FLAG_WUTWF ((uint32_t)0x00000004)
#define RTC_FLAG_ALRBWF ((uint32_t)0x00000002)
#define RTC_FLAG_ALRAWF ((uint32_t)0x00000001)
#define IS_RTC_GET_FLAG(FLAG) (((FLAG) == RTC_FLAG_TSOVF) || ((FLAG) == RTC_FLAG_TSF) || \
((FLAG) == RTC_FLAG_WUTF) || ((FLAG) == RTC_FLAG_ALRBF) || \
((FLAG) == RTC_FLAG_ALRAF) || ((FLAG) == RTC_FLAG_INITF) || \
((FLAG) == RTC_FLAG_RSF) || ((FLAG) == RTC_FLAG_WUTWF) || \
((FLAG) == RTC_FLAG_ALRBWF) || ((FLAG) == RTC_FLAG_ALRAWF) || \
((FLAG) == RTC_FLAG_TAMP1F) || ((FLAG) == RTC_FLAG_RECALPF) || \
((FLAG) == RTC_FLAG_SHPF))
#define IS_RTC_CLEAR_FLAG(FLAG) (((FLAG) != (uint32_t)RESET) && (((FLAG) & 0xFFFF00DF) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup RTC_Interrupts_Definitions
* @{
*/
#define RTC_IT_TS ((uint32_t)0x00008000)
#define RTC_IT_WUT ((uint32_t)0x00004000)
#define RTC_IT_ALRB ((uint32_t)0x00002000)
#define RTC_IT_ALRA ((uint32_t)0x00001000)
#define RTC_IT_TAMP ((uint32_t)0x00000004) /* Used only to Enable the Tamper Interrupt */
#define RTC_IT_TAMP1 ((uint32_t)0x00020000)
#define IS_RTC_CONFIG_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFF0FFB) == (uint32_t)RESET))
#define IS_RTC_GET_IT(IT) (((IT) == RTC_IT_TS) || ((IT) == RTC_IT_WUT) || \
((IT) == RTC_IT_ALRB) || ((IT) == RTC_IT_ALRA) || \
((IT) == RTC_IT_TAMP1))
#define IS_RTC_CLEAR_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFD0FFF) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup RTC_Legacy
* @{
*/
#define RTC_DigitalCalibConfig RTC_CoarseCalibConfig
#define RTC_DigitalCalibCmd RTC_CoarseCalibCmd

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03. 相关函数

/* Function used to set the RTC configuration to the default reset state *****/
ErrorStatus RTC_DeInit(void);
/* Initialization and Configuration functions *********************************/
ErrorStatus RTC_Init(RTC_InitTypeDef* RTC_InitStruct);
void RTC_StructInit(RTC_InitTypeDef* RTC_InitStruct);
void RTC_WriteProtectionCmd(FunctionalState NewState);
ErrorStatus RTC_EnterInitMode(void);
void RTC_ExitInitMode(void);
ErrorStatus RTC_WaitForSynchro(void);
ErrorStatus RTC_RefClockCmd(FunctionalState NewState);
void RTC_BypassShadowCmd(FunctionalState NewState);
/* Time and Date configuration functions **************************************/
ErrorStatus RTC_SetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct);
void RTC_TimeStructInit(RTC_TimeTypeDef* RTC_TimeStruct);
void RTC_GetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct);
uint32_t RTC_GetSubSecond(void);
ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct);
void RTC_DateStructInit(RTC_DateTypeDef* RTC_DateStruct);
void RTC_GetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct);
/* Alarms (Alarm A and Alarm B) configuration functions **********************/
void RTC_SetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct);
void RTC_AlarmStructInit(RTC_AlarmTypeDef* RTC_AlarmStruct);
void RTC_GetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct);
ErrorStatus RTC_AlarmCmd(uint32_t RTC_Alarm, FunctionalState NewState);
void RTC_AlarmSubSecondConfig(uint32_t RTC_Alarm, uint32_t RTC_AlarmSubSecondValue, uint32_t RTC_AlarmSubSecondMask);
uint32_t RTC_GetAlarmSubSecond(uint32_t RTC_Alarm);
/* WakeUp Timer configuration functions ***************************************/
void RTC_WakeUpClockConfig(uint32_t RTC_WakeUpClock);
void RTC_SetWakeUpCounter(uint32_t RTC_WakeUpCounter);
uint32_t RTC_GetWakeUpCounter(void);
ErrorStatus RTC_WakeUpCmd(FunctionalState NewState);
/* Daylight Saving configuration functions ************************************/
void RTC_DayLightSavingConfig(uint32_t RTC_DayLightSaving, uint32_t RTC_StoreOperation);
uint32_t RTC_GetStoreOperation(void);
/* Output pin Configuration function ******************************************/
void RTC_OutputConfig(uint32_t RTC_Output, uint32_t RTC_OutputPolarity);
/* Digital Calibration configuration functions *********************************/
ErrorStatus RTC_CoarseCalibConfig(uint32_t RTC_CalibSign, uint32_t Value);
ErrorStatus RTC_CoarseCalibCmd(FunctionalState NewState);
void RTC_CalibOutputCmd(FunctionalState NewState);
void RTC_CalibOutputConfig(uint32_t RTC_CalibOutput);
ErrorStatus RTC_SmoothCalibConfig(uint32_t RTC_SmoothCalibPeriod,
uint32_t RTC_SmoothCalibPlusPulses,
uint32_t RTC_SmouthCalibMinusPulsesValue);
/* TimeStamp configuration functions ******************************************/
void RTC_TimeStampCmd(uint32_t RTC_TimeStampEdge, FunctionalState NewState);
void RTC_GetTimeStamp(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_StampTimeStruct,
RTC_DateTypeDef* RTC_StampDateStruct);
uint32_t RTC_GetTimeStampSubSecond(void);
/* Tampers configuration functions ********************************************/
void RTC_TamperTriggerConfig(uint32_t RTC_Tamper, uint32_t RTC_TamperTrigger);
void RTC_TamperCmd(uint32_t RTC_Tamper, FunctionalState NewState);
void RTC_TamperFilterConfig(uint32_t RTC_TamperFilter);
void RTC_TamperSamplingFreqConfig(uint32_t RTC_TamperSamplingFreq);
void RTC_TamperPinsPrechargeDuration(uint32_t RTC_TamperPrechargeDuration);
void RTC_TimeStampOnTamperDetectionCmd(FunctionalState NewState);
void RTC_TamperPullUpCmd(FunctionalState NewState);
/* Backup Data Registers configuration functions ******************************/
void RTC_WriteBackupRegister(uint32_t RTC_BKP_DR, uint32_t Data);
uint32_t RTC_ReadBackupRegister(uint32_t RTC_BKP_DR);
/* RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration
functions ******************************************************************/
void RTC_TamperPinSelection(uint32_t RTC_TamperPin);
void RTC_TimeStampPinSelection(uint32_t RTC_TimeStampPin);
void RTC_OutputTypeConfig(uint32_t RTC_OutputType);
/* RTC_Shift_control_synchonisation_functions *********************************/
ErrorStatus RTC_SynchroShiftConfig(uint32_t RTC_ShiftAdd1S, uint32_t RTC_ShiftSubFS);
/* Interrupts and flags management functions **********************************/
void RTC_ITConfig(uint32_t RTC_IT, FunctionalState NewState);
FlagStatus RTC_GetFlagStatus(uint32_t RTC_FLAG);
void RTC_ClearFlag(uint32_t RTC_FLAG);
ITStatus RTC_GetITStatus(uint32_t RTC_IT);
void RTC_ClearITPendingBit(uint32_t RTC_IT);

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04. 结构体封装

/**
* @brief Real-Time Clock
*/
typedef struct
{
__IO uint32_t TR; /*!< RTC time register, Address offset: 0x00 */
__IO uint32_t DR; /*!< RTC date register, Address offset: 0x04 */
__IO uint32_t CR; /*!< RTC control register, Address offset: 0x08 */
__IO uint32_t ISR; /*!< RTC initialization and status register, Address offset: 0x0C */
__IO uint32_t PRER; /*!< RTC prescaler register, Address offset: 0x10 */
__IO uint32_t WUTR; /*!< RTC wakeup timer register, Address offset: 0x14 */
__IO uint32_t CALIBR; /*!< RTC calibration register, Address offset: 0x18 */
__IO uint32_t ALRMAR; /*!< RTC alarm A register, Address offset: 0x1C */
__IO uint32_t ALRMBR; /*!< RTC alarm B register, Address offset: 0x20 */
__IO uint32_t WPR; /*!< RTC write protection register, Address offset: 0x24 */
__IO uint32_t SSR; /*!< RTC sub second register, Address offset: 0x28 */
__IO uint32_t SHIFTR; /*!< RTC shift control register, Address offset: 0x2C */
__IO uint32_t TSTR; /*!< RTC time stamp time register, Address offset: 0x30 */
__IO uint32_t TSDR; /*!< RTC time stamp date register, Address offset: 0x34 */
__IO uint32_t TSSSR; /*!< RTC time-stamp sub second register, Address offset: 0x38 */
__IO uint32_t CALR; /*!< RTC calibration register, Address offset: 0x3C */
__IO uint32_t TAFCR; /*!< RTC tamper and alternate function configuration register, Address offset: 0x40 */
__IO uint32_t ALRMASSR;/*!< RTC alarm A sub second register, Address offset: 0x44 */
__IO uint32_t ALRMBSSR;/*!< RTC alarm B sub second register, Address offset: 0x48 */
uint32_t RESERVED7; /*!< Reserved, 0x4C */
__IO uint32_t BKP0R; /*!< RTC backup register 1, Address offset: 0x50 */
__IO uint32_t BKP1R; /*!< RTC backup register 1, Address offset: 0x54 */
__IO uint32_t BKP2R; /*!< RTC backup register 2, Address offset: 0x58 */
__IO uint32_t BKP3R; /*!< RTC backup register 3, Address offset: 0x5C */
__IO uint32_t BKP4R; /*!< RTC backup register 4, Address offset: 0x60 */
__IO uint32_t BKP5R; /*!< RTC backup register 5, Address offset: 0x64 */
__IO uint32_t BKP6R; /*!< RTC backup register 6, Address offset: 0x68 */
__IO uint32_t BKP7R; /*!< RTC backup register 7, Address offset: 0x6C */
__IO uint32_t BKP8R; /*!< RTC backup register 8, Address offset: 0x70 */
__IO uint32_t BKP9R; /*!< RTC backup register 9, Address offset: 0x74 */
__IO uint32_t BKP10R; /*!< RTC backup register 10, Address offset: 0x78 */
__IO uint32_t BKP11R; /*!< RTC backup register 11, Address offset: 0x7C */
__IO uint32_t BKP12R; /*!< RTC backup register 12, Address offset: 0x80 */
__IO uint32_t BKP13R; /*!< RTC backup register 13, Address offset: 0x84 */
__IO uint32_t BKP14R; /*!< RTC backup register 14, Address offset: 0x88 */
__IO uint32_t BKP15R; /*!< RTC backup register 15, Address offset: 0x8C */
__IO uint32_t BKP16R; /*!< RTC backup register 16, Address offset: 0x90 */
__IO uint32_t BKP17R; /*!< RTC backup register 17, Address offset: 0x94 */
__IO uint32_t BKP18R; /*!< RTC backup register 18, Address offset: 0x98 */
__IO uint32_t BKP19R; /*!< RTC backup register 19, Address offset: 0x9C */
} RTC_TypeDef;