amiro-blt / Target / Demo / ARMCM4_STM32F405_Power_Management_GCC / Boot / lib / stdperiphlib / STM32F4xx_StdPeriph_Driver / src / stm32f4xx_rtc.c @ 69661903
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/**
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******************************************************************************
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* @file stm32f4xx_rtc.c
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* @author MCD Application Team
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* @version V1.1.0
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* @date 11-January-2013
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* @brief This file provides firmware functions to manage the following
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* functionalities of the Real-Time Clock (RTC) peripheral:
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* + Initialization
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* + Calendar (Time and Date) configuration
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* + Alarms (Alarm A and Alarm B) configuration
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* + WakeUp Timer configuration
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* + Daylight Saving configuration
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* + Output pin Configuration
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* + Coarse digital Calibration configuration
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* + Smooth digital Calibration configuration
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* + TimeStamp configuration
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* + Tampers configuration
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* + Backup Data Registers configuration
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* + Shift control synchronisation
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* + RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration
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* + Interrupts and flags management
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*
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@verbatim
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===================================================================
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##### Backup Domain Operating Condition #####
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===================================================================
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[..] The real-time clock (RTC), the RTC backup registers, and the backup
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SRAM (BKP SRAM) can be powered from the VBAT voltage when the main
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VDD supply is powered off.
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To retain the content of the RTC backup registers, backup SRAM, and supply
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the RTC when VDD is turned off, VBAT pin can be connected to an optional
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standby voltage supplied by a battery or by another source.
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[..] To allow the RTC to operate even when the main digital supply (VDD) is turned
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off, the VBAT pin powers the following blocks:
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(#) The RTC
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(#) The LSE oscillator
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(#) The backup SRAM when the low power backup regulator is enabled
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(#) PC13 to PC15 I/Os, plus PI8 I/O (when available)
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[..] When the backup domain is supplied by VDD (analog switch connected to VDD),
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the following functions are available:
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(#) PC14 and PC15 can be used as either GPIO or LSE pins
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(#) PC13 can be used as a GPIO or as the RTC_AF1 pin
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(#) PI8 can be used as a GPIO or as the RTC_AF2 pin
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[..] When the backup domain is supplied by VBAT (analog switch connected to VBAT
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because VDD is not present), the following functions are available:
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(#) PC14 and PC15 can be used as LSE pins only
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(#) PC13 can be used as the RTC_AF1 pin
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(#) PI8 can be used as the RTC_AF2 pin
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##### Backup Domain Reset #####
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===================================================================
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[..] The backup domain reset sets all RTC registers and the RCC_BDCR register
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to their reset values. The BKPSRAM is not affected by this reset. The only
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way of resetting the BKPSRAM is through the Flash interface by requesting
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a protection level change from 1 to 0.
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[..] A backup domain reset is generated when one of the following events occurs:
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(#) Software reset, triggered by setting the BDRST bit in the
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RCC Backup domain control register (RCC_BDCR). You can use the
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RCC_BackupResetCmd().
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(#) VDD or VBAT power on, if both supplies have previously been powered off.
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##### Backup Domain Access #####
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===================================================================
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[..] After reset, the backup domain (RTC registers, RTC backup data
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registers and backup SRAM) is protected against possible unwanted write
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accesses.
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[..] To enable access to the RTC Domain and RTC registers, proceed as follows:
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(+) Enable the Power Controller (PWR) APB1 interface clock using the
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RCC_APB1PeriphClockCmd() function.
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(+) Enable access to RTC domain using the PWR_BackupAccessCmd() function.
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(+) Select the RTC clock source using the RCC_RTCCLKConfig() function.
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(+) Enable RTC Clock using the RCC_RTCCLKCmd() function.
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##### How to use RTC Driver #####
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===================================================================
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[..]
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(+) Enable the RTC domain access (see description in the section above)
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(+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour
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format using the RTC_Init() function.
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*** Time and Date configuration ***
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===================================
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[..]
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(+) To configure the RTC Calendar (Time and Date) use the RTC_SetTime()
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and RTC_SetDate() functions.
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(+) To read the RTC Calendar, use the RTC_GetTime() and RTC_GetDate() functions.
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(+) Use the RTC_DayLightSavingConfig() function to add or sub one
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hour to the RTC Calendar.
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*** Alarm configuration ***
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===========================
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[..]
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(+) To configure the RTC Alarm use the RTC_SetAlarm() function.
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(+) Enable the selected RTC Alarm using the RTC_AlarmCmd() function
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(+) To read the RTC Alarm, use the RTC_GetAlarm() function.
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(+) To read the RTC alarm SubSecond, use the RTC_GetAlarmSubSecond() function.
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*** RTC Wakeup configuration ***
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================================
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[..]
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(+) Configure the RTC Wakeup Clock source use the RTC_WakeUpClockConfig()
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function.
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(+) Configure the RTC WakeUp Counter using the RTC_SetWakeUpCounter() function
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(+) Enable the RTC WakeUp using the RTC_WakeUpCmd() function
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(+) To read the RTC WakeUp Counter register, use the RTC_GetWakeUpCounter()
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function.
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*** Outputs configuration ***
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=============================
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[..] The RTC has 2 different outputs:
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(+) AFO_ALARM: this output is used to manage the RTC Alarm A, Alarm B
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and WaKeUp signals. To output the selected RTC signal on RTC_AF1 pin, use the
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RTC_OutputConfig() function.
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(+) AFO_CALIB: this output is 512Hz signal or 1Hz. To output the RTC Clock on
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RTC_AF1 pin, use the RTC_CalibOutputCmd() function.
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*** Smooth digital Calibration configuration ***
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================================================
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[..]
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(+) Configure the RTC Original Digital Calibration Value and the corresponding
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calibration cycle period (32s,16s and 8s) using the RTC_SmoothCalibConfig()
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function.
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*** Coarse digital Calibration configuration ***
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================================================
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[..]
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(+) Configure the RTC Coarse Calibration Value and the corresponding
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sign using the RTC_CoarseCalibConfig() function.
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(+) Enable the RTC Coarse Calibration using the RTC_CoarseCalibCmd() function
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*** TimeStamp configuration ***
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===============================
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[..]
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(+) Configure the RTC_AF1 trigger and enables the RTC TimeStamp using the RTC
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_TimeStampCmd() function.
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(+) To read the RTC TimeStamp Time and Date register, use the RTC_GetTimeStamp()
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function.
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(+) To read the RTC TimeStamp SubSecond register, use the
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RTC_GetTimeStampSubSecond() function.
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(+) The TAMPER1 alternate function can be mapped either to RTC_AF1(PC13)
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or RTC_AF2 (PI8) depending on the value of TAMP1INSEL bit in
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RTC_TAFCR register. You can use the RTC_TamperPinSelection() function to
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select the corresponding pin.
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*** Tamper configuration ***
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============================
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[..]
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(+) Enable the RTC Tamper using the RTC_TamperCmd() function.
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(+) Configure the Tamper filter count using RTC_TamperFilterConfig()
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function.
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(+) Configure the RTC Tamper trigger Edge or Level according to the Tamper
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filter (if equal to 0 Edge else Level) value using the RTC_TamperConfig()
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function.
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(+) Configure the Tamper sampling frequency using RTC_TamperSamplingFreqConfig()
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function.
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(+) Configure the Tamper precharge or discharge duration using
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RTC_TamperPinsPrechargeDuration() function.
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(+) Enable the Tamper Pull-UP using RTC_TamperPullUpDisableCmd() function.
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(+) Enable the Time stamp on Tamper detection event using
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TC_TSOnTamperDetecCmd() function.
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(+) The TIMESTAMP alternate function can be mapped to either RTC_AF1
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or RTC_AF2 depending on the value of the TSINSEL bit in the RTC_TAFCR
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register. You can use the RTC_TimeStampPinSelection() function to select
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the corresponding pin.
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*** Backup Data Registers configuration ***
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===========================================
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[..]
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(+) To write to the RTC Backup Data registers, use the RTC_WriteBackupRegister()
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function.
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(+) To read the RTC Backup Data registers, use the RTC_ReadBackupRegister()
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function.
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##### RTC and low power modes #####
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===================================================================
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[..] The MCU can be woken up from a low power mode by an RTC alternate
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function.
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[..] The RTC alternate functions are the RTC alarms (Alarm A and Alarm B),
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RTC wakeup, RTC tamper event detection and RTC time stamp event detection.
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These RTC alternate functions can wake up the system from the Stop and
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Standby lowpower modes.
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[..] The system can also wake up from low power modes without depending
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on an external interrupt (Auto-wakeup mode), by using the RTC alarm
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or the RTC wakeup events.
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[..] The RTC provides a programmable time base for waking up from the
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Stop or Standby mode at regular intervals.
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Wakeup from STOP and Standby modes is possible only when the RTC clock source
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is LSE or LSI.
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##### Selection of RTC_AF1 alternate functions #####
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===================================================================
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[..] The RTC_AF1 pin (PC13) can be used for the following purposes:
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(+) AFO_ALARM output
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(+) AFO_CALIB output
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(+) AFI_TAMPER
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(+) AFI_TIMESTAMP
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[..]
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+-------------------------------------------------------------------------------------------------------------+
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| Pin |AFO_ALARM |AFO_CALIB |AFI_TAMPER |AFI_TIMESTAMP | TAMP1INSEL | TSINSEL |ALARMOUTTYPE |
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| configuration | ENABLED | ENABLED | ENABLED | ENABLED |TAMPER1 pin |TIMESTAMP pin | AFO_ALARM |
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| and function | | | | | selection | selection |Configuration |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| Alarm out | | | | | Don't | Don't | |
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| output OD | 1 |Don't care|Don't care | Don't care | care | care | 0 |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| Alarm out | | | | | Don't | Don't | |
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| output PP | 1 |Don't care|Don't care | Don't care | care | care | 1 |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| Calibration out | | | | | Don't | Don't | |
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| output PP | 0 | 1 |Don't care | Don't care | care | care | Don't care |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| TAMPER input | | | | | | Don't | |
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| floating | 0 | 0 | 1 | 0 | 0 | care | Don't care |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| TIMESTAMP and | | | | | | | |
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| TAMPER input | 0 | 0 | 1 | 1 | 0 | 0 | Don't care |
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| floating | | | | | | | |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| TIMESTAMP input | | | | | Don't | | |
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| floating | 0 | 0 | 0 | 1 | care | 0 | Don't care |
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|-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
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| Standard GPIO | 0 | 0 | 0 | 0 | Don't care | Don't care | Don't care |
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+-------------------------------------------------------------------------------------------------------------+
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##### Selection of RTC_AF2 alternate functions #####
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===================================================================
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[..] The RTC_AF2 pin (PI8) can be used for the following purposes:
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(+) AFI_TAMPER
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(+) AFI_TIMESTAMP
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[..]
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+---------------------------------------------------------------------------------------+
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| Pin |AFI_TAMPER |AFI_TIMESTAMP | TAMP1INSEL | TSINSEL |ALARMOUTTYPE |
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| configuration | ENABLED | ENABLED |TAMPER1 pin |TIMESTAMP pin | AFO_ALARM |
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| and function | | | selection | selection |Configuration |
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|-----------------|-----------|--------------|------------|--------------|--------------|
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| TAMPER input | | | | Don't | |
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| floating | 1 | 0 | 1 | care | Don't care |
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|-----------------|-----------|--------------|------------|--------------|--------------|
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| TIMESTAMP and | | | | | |
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| TAMPER input | 1 | 1 | 1 | 1 | Don't care |
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| floating | | | | | |
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|-----------------|-----------|--------------|------------|--------------|--------------|
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| TIMESTAMP input | | | Don't | | |
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| floating | 0 | 1 | care | 1 | Don't care |
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|-----------------|-----------|--------------|------------|--------------|--------------|
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| Standard GPIO | 0 | 0 | Don't care | Don't care | Don't care |
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+---------------------------------------------------------------------------------------+
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_rtc.h" |
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/** @addtogroup STM32F4xx_StdPeriph_Driver
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* @{
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*/
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/** @defgroup RTC
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* @brief RTC driver modules
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Masks Definition */
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#define RTC_TR_RESERVED_MASK ((uint32_t)0x007F7F7F) |
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#define RTC_DR_RESERVED_MASK ((uint32_t)0x00FFFF3F) |
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#define RTC_INIT_MASK ((uint32_t)0xFFFFFFFF) |
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#define RTC_RSF_MASK ((uint32_t)0xFFFFFF5F) |
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#define RTC_FLAGS_MASK ((uint32_t)(RTC_FLAG_TSOVF | RTC_FLAG_TSF | RTC_FLAG_WUTF | \
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RTC_FLAG_ALRBF | RTC_FLAG_ALRAF | RTC_FLAG_INITF | \ |
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RTC_FLAG_RSF | RTC_FLAG_INITS | RTC_FLAG_WUTWF | \ |
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RTC_FLAG_ALRBWF | RTC_FLAG_ALRAWF | RTC_FLAG_TAMP1F | \ |
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RTC_FLAG_RECALPF | RTC_FLAG_SHPF)) |
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#define INITMODE_TIMEOUT ((uint32_t) 0x00010000) |
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#define SYNCHRO_TIMEOUT ((uint32_t) 0x00020000) |
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#define RECALPF_TIMEOUT ((uint32_t) 0x00020000) |
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#define SHPF_TIMEOUT ((uint32_t) 0x00001000) |
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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static uint8_t RTC_ByteToBcd2(uint8_t Value);
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static uint8_t RTC_Bcd2ToByte(uint8_t Value);
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/* Private functions ---------------------------------------------------------*/
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/** @defgroup RTC_Private_Functions
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* @{
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*/
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/** @defgroup RTC_Group1 Initialization and Configuration functions
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* @brief Initialization and Configuration functions
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*
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@verbatim
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===============================================================================
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##### Initialization and Configuration functions #####
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===============================================================================
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[..] This section provide functions allowing to initialize and configure the RTC
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Prescaler (Synchronous and Asynchronous), RTC Hour format, disable RTC registers
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Write protection, enter and exit the RTC initialization mode, RTC registers
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synchronization check and reference clock detection enable.
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(#) The RTC Prescaler is programmed to generate the RTC 1Hz time base. It is
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split into 2 programmable prescalers to minimize power consumption.
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(++) A 7-bit asynchronous prescaler and A 13-bit synchronous prescaler.
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(++) When both prescalers are used, it is recommended to configure the
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asynchronous prescaler to a high value to minimize consumption.
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(#) All RTC registers are Write protected. Writing to the RTC registers
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is enabled by writing a key into the Write Protection register, RTC_WPR.
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(#) To Configure the RTC Calendar, user application should enter initialization
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mode. In this mode, the calendar counter is stopped and its value can be
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updated. When the initialization sequence is complete, the calendar restarts
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counting after 4 RTCCLK cycles.
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(#) To read the calendar through the shadow registers after Calendar initialization,
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calendar update or after wakeup from low power modes the software must first
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clear the RSF flag. The software must then wait until it is set again before
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reading the calendar, which means that the calendar registers have been
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correctly copied into the RTC_TR and RTC_DR shadow registers.
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The RTC_WaitForSynchro() function implements the above software sequence
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(RSF clear and RSF check).
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@endverbatim
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* @{
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*/
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/**
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* @brief Deinitializes the RTC registers to their default reset values.
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* @note This function doesn't reset the RTC Clock source and RTC Backup Data
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* registers.
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* @param None
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: RTC registers are deinitialized
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* - ERROR: RTC registers are not deinitialized
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*/
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ErrorStatus RTC_DeInit(void)
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{
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__IO uint32_t wutcounter = 0x00;
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uint32_t wutwfstatus = 0x00;
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ErrorStatus status = ERROR; |
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/* Disable the write protection for RTC registers */
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RTC->WPR = 0xCA;
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RTC->WPR = 0x53;
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/* Set Initialization mode */
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if (RTC_EnterInitMode() == ERROR)
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{
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status = ERROR; |
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} |
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else
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{
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/* Reset TR, DR and CR registers */
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RTC->TR = (uint32_t)0x00000000;
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RTC->DR = (uint32_t)0x00002101;
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/* Reset All CR bits except CR[2:0] */
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RTC->CR &= (uint32_t)0x00000007;
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/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
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do
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{
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wutwfstatus = RTC->ISR & RTC_ISR_WUTWF; |
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wutcounter++; |
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} while((wutcounter != INITMODE_TIMEOUT) && (wutwfstatus == 0x00)); |
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if ((RTC->ISR & RTC_ISR_WUTWF) == RESET)
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{
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status = ERROR; |
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} |
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else
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{
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/* Reset all RTC CR register bits */
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RTC->CR &= (uint32_t)0x00000000;
|
| 413 |
RTC->WUTR = (uint32_t)0x0000FFFF;
|
| 414 |
RTC->PRER = (uint32_t)0x007F00FF;
|
| 415 |
RTC->CALIBR = (uint32_t)0x00000000;
|
| 416 |
RTC->ALRMAR = (uint32_t)0x00000000;
|
| 417 |
RTC->ALRMBR = (uint32_t)0x00000000;
|
| 418 |
RTC->SHIFTR = (uint32_t)0x00000000;
|
| 419 |
RTC->CALR = (uint32_t)0x00000000;
|
| 420 |
RTC->ALRMASSR = (uint32_t)0x00000000;
|
| 421 |
RTC->ALRMBSSR = (uint32_t)0x00000000;
|
| 422 |
|
| 423 |
/* Reset ISR register and exit initialization mode */
|
| 424 |
RTC->ISR = (uint32_t)0x00000000;
|
| 425 |
|
| 426 |
/* Reset Tamper and alternate functions configuration register */
|
| 427 |
RTC->TAFCR = 0x00000000;
|
| 428 |
|
| 429 |
if(RTC_WaitForSynchro() == ERROR)
|
| 430 |
{
|
| 431 |
status = ERROR; |
| 432 |
} |
| 433 |
else
|
| 434 |
{
|
| 435 |
status = SUCCESS; |
| 436 |
} |
| 437 |
} |
| 438 |
} |
| 439 |
|
| 440 |
/* Enable the write protection for RTC registers */
|
| 441 |
RTC->WPR = 0xFF;
|
| 442 |
|
| 443 |
return status;
|
| 444 |
} |
| 445 |
|
| 446 |
/**
|
| 447 |
* @brief Initializes the RTC registers according to the specified parameters
|
| 448 |
* in RTC_InitStruct.
|
| 449 |
* @param RTC_InitStruct: pointer to a RTC_InitTypeDef structure that contains
|
| 450 |
* the configuration information for the RTC peripheral.
|
| 451 |
* @note The RTC Prescaler register is write protected and can be written in
|
| 452 |
* initialization mode only.
|
| 453 |
* @retval An ErrorStatus enumeration value:
|
| 454 |
* - SUCCESS: RTC registers are initialized
|
| 455 |
* - ERROR: RTC registers are not initialized
|
| 456 |
*/
|
| 457 |
ErrorStatus RTC_Init(RTC_InitTypeDef* RTC_InitStruct) |
| 458 |
{
|
| 459 |
ErrorStatus status = ERROR; |
| 460 |
|
| 461 |
/* Check the parameters */
|
| 462 |
assert_param(IS_RTC_HOUR_FORMAT(RTC_InitStruct->RTC_HourFormat)); |
| 463 |
assert_param(IS_RTC_ASYNCH_PREDIV(RTC_InitStruct->RTC_AsynchPrediv)); |
| 464 |
assert_param(IS_RTC_SYNCH_PREDIV(RTC_InitStruct->RTC_SynchPrediv)); |
| 465 |
|
| 466 |
/* Disable the write protection for RTC registers */
|
| 467 |
RTC->WPR = 0xCA;
|
| 468 |
RTC->WPR = 0x53;
|
| 469 |
|
| 470 |
/* Set Initialization mode */
|
| 471 |
if (RTC_EnterInitMode() == ERROR)
|
| 472 |
{
|
| 473 |
status = ERROR; |
| 474 |
} |
| 475 |
else
|
| 476 |
{
|
| 477 |
/* Clear RTC CR FMT Bit */
|
| 478 |
RTC->CR &= ((uint32_t)~(RTC_CR_FMT)); |
| 479 |
/* Set RTC_CR register */
|
| 480 |
RTC->CR |= ((uint32_t)(RTC_InitStruct->RTC_HourFormat)); |
| 481 |
|
| 482 |
/* Configure the RTC PRER */
|
| 483 |
RTC->PRER = (uint32_t)(RTC_InitStruct->RTC_SynchPrediv); |
| 484 |
RTC->PRER |= (uint32_t)(RTC_InitStruct->RTC_AsynchPrediv << 16);
|
| 485 |
|
| 486 |
/* Exit Initialization mode */
|
| 487 |
RTC_ExitInitMode(); |
| 488 |
|
| 489 |
status = SUCCESS; |
| 490 |
} |
| 491 |
/* Enable the write protection for RTC registers */
|
| 492 |
RTC->WPR = 0xFF;
|
| 493 |
|
| 494 |
return status;
|
| 495 |
} |
| 496 |
|
| 497 |
/**
|
| 498 |
* @brief Fills each RTC_InitStruct member with its default value.
|
| 499 |
* @param RTC_InitStruct: pointer to a RTC_InitTypeDef structure which will be
|
| 500 |
* initialized.
|
| 501 |
* @retval None
|
| 502 |
*/
|
| 503 |
void RTC_StructInit(RTC_InitTypeDef* RTC_InitStruct)
|
| 504 |
{
|
| 505 |
/* Initialize the RTC_HourFormat member */
|
| 506 |
RTC_InitStruct->RTC_HourFormat = RTC_HourFormat_24; |
| 507 |
|
| 508 |
/* Initialize the RTC_AsynchPrediv member */
|
| 509 |
RTC_InitStruct->RTC_AsynchPrediv = (uint32_t)0x7F;
|
| 510 |
|
| 511 |
/* Initialize the RTC_SynchPrediv member */
|
| 512 |
RTC_InitStruct->RTC_SynchPrediv = (uint32_t)0xFF;
|
| 513 |
} |
| 514 |
|
| 515 |
/**
|
| 516 |
* @brief Enables or disables the RTC registers write protection.
|
| 517 |
* @note All the RTC registers are write protected except for RTC_ISR[13:8],
|
| 518 |
* RTC_TAFCR and RTC_BKPxR.
|
| 519 |
* @note Writing a wrong key reactivates the write protection.
|
| 520 |
* @note The protection mechanism is not affected by system reset.
|
| 521 |
* @param NewState: new state of the write protection.
|
| 522 |
* This parameter can be: ENABLE or DISABLE.
|
| 523 |
* @retval None
|
| 524 |
*/
|
| 525 |
void RTC_WriteProtectionCmd(FunctionalState NewState)
|
| 526 |
{
|
| 527 |
/* Check the parameters */
|
| 528 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 529 |
|
| 530 |
if (NewState != DISABLE)
|
| 531 |
{
|
| 532 |
/* Enable the write protection for RTC registers */
|
| 533 |
RTC->WPR = 0xFF;
|
| 534 |
} |
| 535 |
else
|
| 536 |
{
|
| 537 |
/* Disable the write protection for RTC registers */
|
| 538 |
RTC->WPR = 0xCA;
|
| 539 |
RTC->WPR = 0x53;
|
| 540 |
} |
| 541 |
} |
| 542 |
|
| 543 |
/**
|
| 544 |
* @brief Enters the RTC Initialization mode.
|
| 545 |
* @note The RTC Initialization mode is write protected, use the
|
| 546 |
* RTC_WriteProtectionCmd(DISABLE) before calling this function.
|
| 547 |
* @param None
|
| 548 |
* @retval An ErrorStatus enumeration value:
|
| 549 |
* - SUCCESS: RTC is in Init mode
|
| 550 |
* - ERROR: RTC is not in Init mode
|
| 551 |
*/
|
| 552 |
ErrorStatus RTC_EnterInitMode(void)
|
| 553 |
{
|
| 554 |
__IO uint32_t initcounter = 0x00;
|
| 555 |
ErrorStatus status = ERROR; |
| 556 |
uint32_t initstatus = 0x00;
|
| 557 |
|
| 558 |
/* Check if the Initialization mode is set */
|
| 559 |
if ((RTC->ISR & RTC_ISR_INITF) == (uint32_t)RESET)
|
| 560 |
{
|
| 561 |
/* Set the Initialization mode */
|
| 562 |
RTC->ISR = (uint32_t)RTC_INIT_MASK; |
| 563 |
|
| 564 |
/* Wait till RTC is in INIT state and if Time out is reached exit */
|
| 565 |
do
|
| 566 |
{
|
| 567 |
initstatus = RTC->ISR & RTC_ISR_INITF; |
| 568 |
initcounter++; |
| 569 |
} while((initcounter != INITMODE_TIMEOUT) && (initstatus == 0x00)); |
| 570 |
|
| 571 |
if ((RTC->ISR & RTC_ISR_INITF) != RESET)
|
| 572 |
{
|
| 573 |
status = SUCCESS; |
| 574 |
} |
| 575 |
else
|
| 576 |
{
|
| 577 |
status = ERROR; |
| 578 |
} |
| 579 |
} |
| 580 |
else
|
| 581 |
{
|
| 582 |
status = SUCCESS; |
| 583 |
} |
| 584 |
|
| 585 |
return (status);
|
| 586 |
} |
| 587 |
|
| 588 |
/**
|
| 589 |
* @brief Exits the RTC Initialization mode.
|
| 590 |
* @note When the initialization sequence is complete, the calendar restarts
|
| 591 |
* counting after 4 RTCCLK cycles.
|
| 592 |
* @note The RTC Initialization mode is write protected, use the
|
| 593 |
* RTC_WriteProtectionCmd(DISABLE) before calling this function.
|
| 594 |
* @param None
|
| 595 |
* @retval None
|
| 596 |
*/
|
| 597 |
void RTC_ExitInitMode(void) |
| 598 |
{
|
| 599 |
/* Exit Initialization mode */
|
| 600 |
RTC->ISR &= (uint32_t)~RTC_ISR_INIT; |
| 601 |
} |
| 602 |
|
| 603 |
/**
|
| 604 |
* @brief Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are
|
| 605 |
* synchronized with RTC APB clock.
|
| 606 |
* @note The RTC Resynchronization mode is write protected, use the
|
| 607 |
* RTC_WriteProtectionCmd(DISABLE) before calling this function.
|
| 608 |
* @note To read the calendar through the shadow registers after Calendar
|
| 609 |
* initialization, calendar update or after wakeup from low power modes
|
| 610 |
* the software must first clear the RSF flag.
|
| 611 |
* The software must then wait until it is set again before reading
|
| 612 |
* the calendar, which means that the calendar registers have been
|
| 613 |
* correctly copied into the RTC_TR and RTC_DR shadow registers.
|
| 614 |
* @param None
|
| 615 |
* @retval An ErrorStatus enumeration value:
|
| 616 |
* - SUCCESS: RTC registers are synchronised
|
| 617 |
* - ERROR: RTC registers are not synchronised
|
| 618 |
*/
|
| 619 |
ErrorStatus RTC_WaitForSynchro(void)
|
| 620 |
{
|
| 621 |
__IO uint32_t synchrocounter = 0;
|
| 622 |
ErrorStatus status = ERROR; |
| 623 |
uint32_t synchrostatus = 0x00;
|
| 624 |
|
| 625 |
/* Disable the write protection for RTC registers */
|
| 626 |
RTC->WPR = 0xCA;
|
| 627 |
RTC->WPR = 0x53;
|
| 628 |
|
| 629 |
/* Clear RSF flag */
|
| 630 |
RTC->ISR &= (uint32_t)RTC_RSF_MASK; |
| 631 |
|
| 632 |
/* Wait the registers to be synchronised */
|
| 633 |
do
|
| 634 |
{
|
| 635 |
synchrostatus = RTC->ISR & RTC_ISR_RSF; |
| 636 |
synchrocounter++; |
| 637 |
} while((synchrocounter != SYNCHRO_TIMEOUT) && (synchrostatus == 0x00)); |
| 638 |
|
| 639 |
if ((RTC->ISR & RTC_ISR_RSF) != RESET)
|
| 640 |
{
|
| 641 |
status = SUCCESS; |
| 642 |
} |
| 643 |
else
|
| 644 |
{
|
| 645 |
status = ERROR; |
| 646 |
} |
| 647 |
|
| 648 |
/* Enable the write protection for RTC registers */
|
| 649 |
RTC->WPR = 0xFF;
|
| 650 |
|
| 651 |
return (status);
|
| 652 |
} |
| 653 |
|
| 654 |
/**
|
| 655 |
* @brief Enables or disables the RTC reference clock detection.
|
| 656 |
* @param NewState: new state of the RTC reference clock.
|
| 657 |
* This parameter can be: ENABLE or DISABLE.
|
| 658 |
* @retval An ErrorStatus enumeration value:
|
| 659 |
* - SUCCESS: RTC reference clock detection is enabled
|
| 660 |
* - ERROR: RTC reference clock detection is disabled
|
| 661 |
*/
|
| 662 |
ErrorStatus RTC_RefClockCmd(FunctionalState NewState) |
| 663 |
{
|
| 664 |
ErrorStatus status = ERROR; |
| 665 |
|
| 666 |
/* Check the parameters */
|
| 667 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 668 |
|
| 669 |
/* Disable the write protection for RTC registers */
|
| 670 |
RTC->WPR = 0xCA;
|
| 671 |
RTC->WPR = 0x53;
|
| 672 |
|
| 673 |
/* Set Initialization mode */
|
| 674 |
if (RTC_EnterInitMode() == ERROR)
|
| 675 |
{
|
| 676 |
status = ERROR; |
| 677 |
} |
| 678 |
else
|
| 679 |
{
|
| 680 |
if (NewState != DISABLE)
|
| 681 |
{
|
| 682 |
/* Enable the RTC reference clock detection */
|
| 683 |
RTC->CR |= RTC_CR_REFCKON; |
| 684 |
} |
| 685 |
else
|
| 686 |
{
|
| 687 |
/* Disable the RTC reference clock detection */
|
| 688 |
RTC->CR &= ~RTC_CR_REFCKON; |
| 689 |
} |
| 690 |
/* Exit Initialization mode */
|
| 691 |
RTC_ExitInitMode(); |
| 692 |
|
| 693 |
status = SUCCESS; |
| 694 |
} |
| 695 |
|
| 696 |
/* Enable the write protection for RTC registers */
|
| 697 |
RTC->WPR = 0xFF;
|
| 698 |
|
| 699 |
return status;
|
| 700 |
} |
| 701 |
|
| 702 |
/**
|
| 703 |
* @brief Enables or Disables the Bypass Shadow feature.
|
| 704 |
* @note When the Bypass Shadow is enabled the calendar value are taken
|
| 705 |
* directly from the Calendar counter.
|
| 706 |
* @param NewState: new state of the Bypass Shadow feature.
|
| 707 |
* This parameter can be: ENABLE or DISABLE.
|
| 708 |
* @retval None
|
| 709 |
*/
|
| 710 |
void RTC_BypassShadowCmd(FunctionalState NewState)
|
| 711 |
{
|
| 712 |
/* Check the parameters */
|
| 713 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 714 |
|
| 715 |
/* Disable the write protection for RTC registers */
|
| 716 |
RTC->WPR = 0xCA;
|
| 717 |
RTC->WPR = 0x53;
|
| 718 |
|
| 719 |
if (NewState != DISABLE)
|
| 720 |
{
|
| 721 |
/* Set the BYPSHAD bit */
|
| 722 |
RTC->CR |= (uint8_t)RTC_CR_BYPSHAD; |
| 723 |
} |
| 724 |
else
|
| 725 |
{
|
| 726 |
/* Reset the BYPSHAD bit */
|
| 727 |
RTC->CR &= (uint8_t)~RTC_CR_BYPSHAD; |
| 728 |
} |
| 729 |
|
| 730 |
/* Enable the write protection for RTC registers */
|
| 731 |
RTC->WPR = 0xFF;
|
| 732 |
} |
| 733 |
|
| 734 |
/**
|
| 735 |
* @}
|
| 736 |
*/
|
| 737 |
|
| 738 |
/** @defgroup RTC_Group2 Time and Date configuration functions
|
| 739 |
* @brief Time and Date configuration functions
|
| 740 |
*
|
| 741 |
@verbatim
|
| 742 |
===============================================================================
|
| 743 |
##### Time and Date configuration functions #####
|
| 744 |
===============================================================================
|
| 745 |
|
| 746 |
[..] This section provide functions allowing to program and read the RTC Calendar
|
| 747 |
(Time and Date).
|
| 748 |
|
| 749 |
@endverbatim
|
| 750 |
* @{
|
| 751 |
*/
|
| 752 |
|
| 753 |
/**
|
| 754 |
* @brief Set the RTC current time.
|
| 755 |
* @param RTC_Format: specifies the format of the entered parameters.
|
| 756 |
* This parameter can be one of the following values:
|
| 757 |
* @arg RTC_Format_BIN: Binary data format
|
| 758 |
* @arg RTC_Format_BCD: BCD data format
|
| 759 |
* @param RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure that contains
|
| 760 |
* the time configuration information for the RTC.
|
| 761 |
* @retval An ErrorStatus enumeration value:
|
| 762 |
* - SUCCESS: RTC Time register is configured
|
| 763 |
* - ERROR: RTC Time register is not configured
|
| 764 |
*/
|
| 765 |
ErrorStatus RTC_SetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct) |
| 766 |
{
|
| 767 |
uint32_t tmpreg = 0;
|
| 768 |
ErrorStatus status = ERROR; |
| 769 |
|
| 770 |
/* Check the parameters */
|
| 771 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 772 |
|
| 773 |
if (RTC_Format == RTC_Format_BIN)
|
| 774 |
{
|
| 775 |
if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
|
| 776 |
{
|
| 777 |
assert_param(IS_RTC_HOUR12(RTC_TimeStruct->RTC_Hours)); |
| 778 |
assert_param(IS_RTC_H12(RTC_TimeStruct->RTC_H12)); |
| 779 |
} |
| 780 |
else
|
| 781 |
{
|
| 782 |
RTC_TimeStruct->RTC_H12 = 0x00;
|
| 783 |
assert_param(IS_RTC_HOUR24(RTC_TimeStruct->RTC_Hours)); |
| 784 |
} |
| 785 |
assert_param(IS_RTC_MINUTES(RTC_TimeStruct->RTC_Minutes)); |
| 786 |
assert_param(IS_RTC_SECONDS(RTC_TimeStruct->RTC_Seconds)); |
| 787 |
} |
| 788 |
else
|
| 789 |
{
|
| 790 |
if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
|
| 791 |
{
|
| 792 |
tmpreg = RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Hours); |
| 793 |
assert_param(IS_RTC_HOUR12(tmpreg)); |
| 794 |
assert_param(IS_RTC_H12(RTC_TimeStruct->RTC_H12)); |
| 795 |
} |
| 796 |
else
|
| 797 |
{
|
| 798 |
RTC_TimeStruct->RTC_H12 = 0x00;
|
| 799 |
assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Hours))); |
| 800 |
} |
| 801 |
assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Minutes))); |
| 802 |
assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Seconds))); |
| 803 |
} |
| 804 |
|
| 805 |
/* Check the input parameters format */
|
| 806 |
if (RTC_Format != RTC_Format_BIN)
|
| 807 |
{
|
| 808 |
tmpreg = (((uint32_t)(RTC_TimeStruct->RTC_Hours) << 16) | \
|
| 809 |
((uint32_t)(RTC_TimeStruct->RTC_Minutes) << 8) | \
|
| 810 |
((uint32_t)RTC_TimeStruct->RTC_Seconds) | \ |
| 811 |
((uint32_t)(RTC_TimeStruct->RTC_H12) << 16));
|
| 812 |
} |
| 813 |
else
|
| 814 |
{
|
| 815 |
tmpreg = (uint32_t)(((uint32_t)RTC_ByteToBcd2(RTC_TimeStruct->RTC_Hours) << 16) | \
|
| 816 |
((uint32_t)RTC_ByteToBcd2(RTC_TimeStruct->RTC_Minutes) << 8) | \
|
| 817 |
((uint32_t)RTC_ByteToBcd2(RTC_TimeStruct->RTC_Seconds)) | \ |
| 818 |
(((uint32_t)RTC_TimeStruct->RTC_H12) << 16));
|
| 819 |
} |
| 820 |
|
| 821 |
/* Disable the write protection for RTC registers */
|
| 822 |
RTC->WPR = 0xCA;
|
| 823 |
RTC->WPR = 0x53;
|
| 824 |
|
| 825 |
/* Set Initialization mode */
|
| 826 |
if (RTC_EnterInitMode() == ERROR)
|
| 827 |
{
|
| 828 |
status = ERROR; |
| 829 |
} |
| 830 |
else
|
| 831 |
{
|
| 832 |
/* Set the RTC_TR register */
|
| 833 |
RTC->TR = (uint32_t)(tmpreg & RTC_TR_RESERVED_MASK); |
| 834 |
|
| 835 |
/* Exit Initialization mode */
|
| 836 |
RTC_ExitInitMode(); |
| 837 |
|
| 838 |
/* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
|
| 839 |
if ((RTC->CR & RTC_CR_BYPSHAD) == RESET)
|
| 840 |
{
|
| 841 |
if(RTC_WaitForSynchro() == ERROR)
|
| 842 |
{
|
| 843 |
status = ERROR; |
| 844 |
} |
| 845 |
else
|
| 846 |
{
|
| 847 |
status = SUCCESS; |
| 848 |
} |
| 849 |
} |
| 850 |
else
|
| 851 |
{
|
| 852 |
status = SUCCESS; |
| 853 |
} |
| 854 |
} |
| 855 |
/* Enable the write protection for RTC registers */
|
| 856 |
RTC->WPR = 0xFF;
|
| 857 |
|
| 858 |
return status;
|
| 859 |
} |
| 860 |
|
| 861 |
/**
|
| 862 |
* @brief Fills each RTC_TimeStruct member with its default value
|
| 863 |
* (Time = 00h:00min:00sec).
|
| 864 |
* @param RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure which will be
|
| 865 |
* initialized.
|
| 866 |
* @retval None
|
| 867 |
*/
|
| 868 |
void RTC_TimeStructInit(RTC_TimeTypeDef* RTC_TimeStruct)
|
| 869 |
{
|
| 870 |
/* Time = 00h:00min:00sec */
|
| 871 |
RTC_TimeStruct->RTC_H12 = RTC_H12_AM; |
| 872 |
RTC_TimeStruct->RTC_Hours = 0;
|
| 873 |
RTC_TimeStruct->RTC_Minutes = 0;
|
| 874 |
RTC_TimeStruct->RTC_Seconds = 0;
|
| 875 |
} |
| 876 |
|
| 877 |
/**
|
| 878 |
* @brief Get the RTC current Time.
|
| 879 |
* @param RTC_Format: specifies the format of the returned parameters.
|
| 880 |
* This parameter can be one of the following values:
|
| 881 |
* @arg RTC_Format_BIN: Binary data format
|
| 882 |
* @arg RTC_Format_BCD: BCD data format
|
| 883 |
* @param RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure that will
|
| 884 |
* contain the returned current time configuration.
|
| 885 |
* @retval None
|
| 886 |
*/
|
| 887 |
void RTC_GetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct)
|
| 888 |
{
|
| 889 |
uint32_t tmpreg = 0;
|
| 890 |
|
| 891 |
/* Check the parameters */
|
| 892 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 893 |
|
| 894 |
/* Get the RTC_TR register */
|
| 895 |
tmpreg = (uint32_t)(RTC->TR & RTC_TR_RESERVED_MASK); |
| 896 |
|
| 897 |
/* Fill the structure fields with the read parameters */
|
| 898 |
RTC_TimeStruct->RTC_Hours = (uint8_t)((tmpreg & (RTC_TR_HT | RTC_TR_HU)) >> 16);
|
| 899 |
RTC_TimeStruct->RTC_Minutes = (uint8_t)((tmpreg & (RTC_TR_MNT | RTC_TR_MNU)) >>8);
|
| 900 |
RTC_TimeStruct->RTC_Seconds = (uint8_t)(tmpreg & (RTC_TR_ST | RTC_TR_SU)); |
| 901 |
RTC_TimeStruct->RTC_H12 = (uint8_t)((tmpreg & (RTC_TR_PM)) >> 16);
|
| 902 |
|
| 903 |
/* Check the input parameters format */
|
| 904 |
if (RTC_Format == RTC_Format_BIN)
|
| 905 |
{
|
| 906 |
/* Convert the structure parameters to Binary format */
|
| 907 |
RTC_TimeStruct->RTC_Hours = (uint8_t)RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Hours); |
| 908 |
RTC_TimeStruct->RTC_Minutes = (uint8_t)RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Minutes); |
| 909 |
RTC_TimeStruct->RTC_Seconds = (uint8_t)RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Seconds); |
| 910 |
} |
| 911 |
} |
| 912 |
|
| 913 |
/**
|
| 914 |
* @brief Gets the RTC current Calendar Sub seconds value.
|
| 915 |
* @note This function freeze the Time and Date registers after reading the
|
| 916 |
* SSR register.
|
| 917 |
* @param None
|
| 918 |
* @retval RTC current Calendar Sub seconds value.
|
| 919 |
*/
|
| 920 |
uint32_t RTC_GetSubSecond(void)
|
| 921 |
{
|
| 922 |
uint32_t tmpreg = 0;
|
| 923 |
|
| 924 |
/* Get sub seconds values from the correspondent registers*/
|
| 925 |
tmpreg = (uint32_t)(RTC->SSR); |
| 926 |
|
| 927 |
/* Read DR register to unfroze calendar registers */
|
| 928 |
(void) (RTC->DR);
|
| 929 |
|
| 930 |
return (tmpreg);
|
| 931 |
} |
| 932 |
|
| 933 |
/**
|
| 934 |
* @brief Set the RTC current date.
|
| 935 |
* @param RTC_Format: specifies the format of the entered parameters.
|
| 936 |
* This parameter can be one of the following values:
|
| 937 |
* @arg RTC_Format_BIN: Binary data format
|
| 938 |
* @arg RTC_Format_BCD: BCD data format
|
| 939 |
* @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure that contains
|
| 940 |
* the date configuration information for the RTC.
|
| 941 |
* @retval An ErrorStatus enumeration value:
|
| 942 |
* - SUCCESS: RTC Date register is configured
|
| 943 |
* - ERROR: RTC Date register is not configured
|
| 944 |
*/
|
| 945 |
ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct) |
| 946 |
{
|
| 947 |
uint32_t tmpreg = 0;
|
| 948 |
ErrorStatus status = ERROR; |
| 949 |
|
| 950 |
/* Check the parameters */
|
| 951 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 952 |
|
| 953 |
if ((RTC_Format == RTC_Format_BIN) && ((RTC_DateStruct->RTC_Month & 0x10) == 0x10)) |
| 954 |
{
|
| 955 |
RTC_DateStruct->RTC_Month = (RTC_DateStruct->RTC_Month & (uint32_t)~(0x10)) + 0x0A; |
| 956 |
} |
| 957 |
if (RTC_Format == RTC_Format_BIN)
|
| 958 |
{
|
| 959 |
assert_param(IS_RTC_YEAR(RTC_DateStruct->RTC_Year)); |
| 960 |
assert_param(IS_RTC_MONTH(RTC_DateStruct->RTC_Month)); |
| 961 |
assert_param(IS_RTC_DATE(RTC_DateStruct->RTC_Date)); |
| 962 |
} |
| 963 |
else
|
| 964 |
{
|
| 965 |
assert_param(IS_RTC_YEAR(RTC_Bcd2ToByte(RTC_DateStruct->RTC_Year))); |
| 966 |
tmpreg = RTC_Bcd2ToByte(RTC_DateStruct->RTC_Month); |
| 967 |
assert_param(IS_RTC_MONTH(tmpreg)); |
| 968 |
tmpreg = RTC_Bcd2ToByte(RTC_DateStruct->RTC_Date); |
| 969 |
assert_param(IS_RTC_DATE(tmpreg)); |
| 970 |
} |
| 971 |
assert_param(IS_RTC_WEEKDAY(RTC_DateStruct->RTC_WeekDay)); |
| 972 |
|
| 973 |
/* Check the input parameters format */
|
| 974 |
if (RTC_Format != RTC_Format_BIN)
|
| 975 |
{
|
| 976 |
tmpreg = ((((uint32_t)RTC_DateStruct->RTC_Year) << 16) | \
|
| 977 |
(((uint32_t)RTC_DateStruct->RTC_Month) << 8) | \
|
| 978 |
((uint32_t)RTC_DateStruct->RTC_Date) | \ |
| 979 |
(((uint32_t)RTC_DateStruct->RTC_WeekDay) << 13));
|
| 980 |
} |
| 981 |
else
|
| 982 |
{
|
| 983 |
tmpreg = (((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Year) << 16) | \
|
| 984 |
((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Month) << 8) | \
|
| 985 |
((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Date)) | \ |
| 986 |
((uint32_t)RTC_DateStruct->RTC_WeekDay << 13));
|
| 987 |
} |
| 988 |
|
| 989 |
/* Disable the write protection for RTC registers */
|
| 990 |
RTC->WPR = 0xCA;
|
| 991 |
RTC->WPR = 0x53;
|
| 992 |
|
| 993 |
/* Set Initialization mode */
|
| 994 |
if (RTC_EnterInitMode() == ERROR)
|
| 995 |
{
|
| 996 |
status = ERROR; |
| 997 |
} |
| 998 |
else
|
| 999 |
{
|
| 1000 |
/* Set the RTC_DR register */
|
| 1001 |
RTC->DR = (uint32_t)(tmpreg & RTC_DR_RESERVED_MASK); |
| 1002 |
|
| 1003 |
/* Exit Initialization mode */
|
| 1004 |
RTC_ExitInitMode(); |
| 1005 |
|
| 1006 |
/* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
|
| 1007 |
if ((RTC->CR & RTC_CR_BYPSHAD) == RESET)
|
| 1008 |
{
|
| 1009 |
if(RTC_WaitForSynchro() == ERROR)
|
| 1010 |
{
|
| 1011 |
status = ERROR; |
| 1012 |
} |
| 1013 |
else
|
| 1014 |
{
|
| 1015 |
status = SUCCESS; |
| 1016 |
} |
| 1017 |
} |
| 1018 |
else
|
| 1019 |
{
|
| 1020 |
status = SUCCESS; |
| 1021 |
} |
| 1022 |
} |
| 1023 |
/* Enable the write protection for RTC registers */
|
| 1024 |
RTC->WPR = 0xFF;
|
| 1025 |
|
| 1026 |
return status;
|
| 1027 |
} |
| 1028 |
|
| 1029 |
/**
|
| 1030 |
* @brief Fills each RTC_DateStruct member with its default value
|
| 1031 |
* (Monday, January 01 xx00).
|
| 1032 |
* @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure which will be
|
| 1033 |
* initialized.
|
| 1034 |
* @retval None
|
| 1035 |
*/
|
| 1036 |
void RTC_DateStructInit(RTC_DateTypeDef* RTC_DateStruct)
|
| 1037 |
{
|
| 1038 |
/* Monday, January 01 xx00 */
|
| 1039 |
RTC_DateStruct->RTC_WeekDay = RTC_Weekday_Monday; |
| 1040 |
RTC_DateStruct->RTC_Date = 1;
|
| 1041 |
RTC_DateStruct->RTC_Month = RTC_Month_January; |
| 1042 |
RTC_DateStruct->RTC_Year = 0;
|
| 1043 |
} |
| 1044 |
|
| 1045 |
/**
|
| 1046 |
* @brief Get the RTC current date.
|
| 1047 |
* @param RTC_Format: specifies the format of the returned parameters.
|
| 1048 |
* This parameter can be one of the following values:
|
| 1049 |
* @arg RTC_Format_BIN: Binary data format
|
| 1050 |
* @arg RTC_Format_BCD: BCD data format
|
| 1051 |
* @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure that will
|
| 1052 |
* contain the returned current date configuration.
|
| 1053 |
* @retval None
|
| 1054 |
*/
|
| 1055 |
void RTC_GetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct)
|
| 1056 |
{
|
| 1057 |
uint32_t tmpreg = 0;
|
| 1058 |
|
| 1059 |
/* Check the parameters */
|
| 1060 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 1061 |
|
| 1062 |
/* Get the RTC_TR register */
|
| 1063 |
tmpreg = (uint32_t)(RTC->DR & RTC_DR_RESERVED_MASK); |
| 1064 |
|
| 1065 |
/* Fill the structure fields with the read parameters */
|
| 1066 |
RTC_DateStruct->RTC_Year = (uint8_t)((tmpreg & (RTC_DR_YT | RTC_DR_YU)) >> 16);
|
| 1067 |
RTC_DateStruct->RTC_Month = (uint8_t)((tmpreg & (RTC_DR_MT | RTC_DR_MU)) >> 8);
|
| 1068 |
RTC_DateStruct->RTC_Date = (uint8_t)(tmpreg & (RTC_DR_DT | RTC_DR_DU)); |
| 1069 |
RTC_DateStruct->RTC_WeekDay = (uint8_t)((tmpreg & (RTC_DR_WDU)) >> 13);
|
| 1070 |
|
| 1071 |
/* Check the input parameters format */
|
| 1072 |
if (RTC_Format == RTC_Format_BIN)
|
| 1073 |
{
|
| 1074 |
/* Convert the structure parameters to Binary format */
|
| 1075 |
RTC_DateStruct->RTC_Year = (uint8_t)RTC_Bcd2ToByte(RTC_DateStruct->RTC_Year); |
| 1076 |
RTC_DateStruct->RTC_Month = (uint8_t)RTC_Bcd2ToByte(RTC_DateStruct->RTC_Month); |
| 1077 |
RTC_DateStruct->RTC_Date = (uint8_t)RTC_Bcd2ToByte(RTC_DateStruct->RTC_Date); |
| 1078 |
} |
| 1079 |
} |
| 1080 |
|
| 1081 |
/**
|
| 1082 |
* @}
|
| 1083 |
*/
|
| 1084 |
|
| 1085 |
/** @defgroup RTC_Group3 Alarms configuration functions
|
| 1086 |
* @brief Alarms (Alarm A and Alarm B) configuration functions
|
| 1087 |
*
|
| 1088 |
@verbatim
|
| 1089 |
===============================================================================
|
| 1090 |
##### Alarms A and B configuration functions #####
|
| 1091 |
===============================================================================
|
| 1092 |
|
| 1093 |
[..] This section provide functions allowing to program and read the RTC Alarms.
|
| 1094 |
|
| 1095 |
@endverbatim
|
| 1096 |
* @{
|
| 1097 |
*/
|
| 1098 |
|
| 1099 |
/**
|
| 1100 |
* @brief Set the specified RTC Alarm.
|
| 1101 |
* @note The Alarm register can only be written when the corresponding Alarm
|
| 1102 |
* is disabled (Use the RTC_AlarmCmd(DISABLE)).
|
| 1103 |
* @param RTC_Format: specifies the format of the returned parameters.
|
| 1104 |
* This parameter can be one of the following values:
|
| 1105 |
* @arg RTC_Format_BIN: Binary data format
|
| 1106 |
* @arg RTC_Format_BCD: BCD data format
|
| 1107 |
* @param RTC_Alarm: specifies the alarm to be configured.
|
| 1108 |
* This parameter can be one of the following values:
|
| 1109 |
* @arg RTC_Alarm_A: to select Alarm A
|
| 1110 |
* @arg RTC_Alarm_B: to select Alarm B
|
| 1111 |
* @param RTC_AlarmStruct: pointer to a RTC_AlarmTypeDef structure that
|
| 1112 |
* contains the alarm configuration parameters.
|
| 1113 |
* @retval None
|
| 1114 |
*/
|
| 1115 |
void RTC_SetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct)
|
| 1116 |
{
|
| 1117 |
uint32_t tmpreg = 0;
|
| 1118 |
|
| 1119 |
/* Check the parameters */
|
| 1120 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 1121 |
assert_param(IS_RTC_ALARM(RTC_Alarm)); |
| 1122 |
assert_param(IS_ALARM_MASK(RTC_AlarmStruct->RTC_AlarmMask)); |
| 1123 |
assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(RTC_AlarmStruct->RTC_AlarmDateWeekDaySel)); |
| 1124 |
|
| 1125 |
if (RTC_Format == RTC_Format_BIN)
|
| 1126 |
{
|
| 1127 |
if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
|
| 1128 |
{
|
| 1129 |
assert_param(IS_RTC_HOUR12(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours)); |
| 1130 |
assert_param(IS_RTC_H12(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12)); |
| 1131 |
} |
| 1132 |
else
|
| 1133 |
{
|
| 1134 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = 0x00;
|
| 1135 |
assert_param(IS_RTC_HOUR24(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours)); |
| 1136 |
} |
| 1137 |
assert_param(IS_RTC_MINUTES(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes)); |
| 1138 |
assert_param(IS_RTC_SECONDS(RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds)); |
| 1139 |
|
| 1140 |
if(RTC_AlarmStruct->RTC_AlarmDateWeekDaySel == RTC_AlarmDateWeekDaySel_Date)
|
| 1141 |
{
|
| 1142 |
assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(RTC_AlarmStruct->RTC_AlarmDateWeekDay)); |
| 1143 |
} |
| 1144 |
else
|
| 1145 |
{
|
| 1146 |
assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(RTC_AlarmStruct->RTC_AlarmDateWeekDay)); |
| 1147 |
} |
| 1148 |
} |
| 1149 |
else
|
| 1150 |
{
|
| 1151 |
if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
|
| 1152 |
{
|
| 1153 |
tmpreg = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours); |
| 1154 |
assert_param(IS_RTC_HOUR12(tmpreg)); |
| 1155 |
assert_param(IS_RTC_H12(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12)); |
| 1156 |
} |
| 1157 |
else
|
| 1158 |
{
|
| 1159 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = 0x00;
|
| 1160 |
assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours))); |
| 1161 |
} |
| 1162 |
|
| 1163 |
assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes))); |
| 1164 |
assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds))); |
| 1165 |
|
| 1166 |
if(RTC_AlarmStruct->RTC_AlarmDateWeekDaySel == RTC_AlarmDateWeekDaySel_Date)
|
| 1167 |
{
|
| 1168 |
tmpreg = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmDateWeekDay); |
| 1169 |
assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(tmpreg)); |
| 1170 |
} |
| 1171 |
else
|
| 1172 |
{
|
| 1173 |
tmpreg = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmDateWeekDay); |
| 1174 |
assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(tmpreg)); |
| 1175 |
} |
| 1176 |
} |
| 1177 |
|
| 1178 |
/* Check the input parameters format */
|
| 1179 |
if (RTC_Format != RTC_Format_BIN)
|
| 1180 |
{
|
| 1181 |
tmpreg = (((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours) << 16) | \
|
| 1182 |
((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes) << 8) | \
|
| 1183 |
((uint32_t)RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds) | \ |
| 1184 |
((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12) << 16) | \
|
| 1185 |
((uint32_t)(RTC_AlarmStruct->RTC_AlarmDateWeekDay) << 24) | \
|
| 1186 |
((uint32_t)RTC_AlarmStruct->RTC_AlarmDateWeekDaySel) | \ |
| 1187 |
((uint32_t)RTC_AlarmStruct->RTC_AlarmMask)); |
| 1188 |
} |
| 1189 |
else
|
| 1190 |
{
|
| 1191 |
tmpreg = (((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours) << 16) | \
|
| 1192 |
((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes) << 8) | \
|
| 1193 |
((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds)) | \ |
| 1194 |
((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12) << 16) | \
|
| 1195 |
((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmDateWeekDay) << 24) | \
|
| 1196 |
((uint32_t)RTC_AlarmStruct->RTC_AlarmDateWeekDaySel) | \ |
| 1197 |
((uint32_t)RTC_AlarmStruct->RTC_AlarmMask)); |
| 1198 |
} |
| 1199 |
|
| 1200 |
/* Disable the write protection for RTC registers */
|
| 1201 |
RTC->WPR = 0xCA;
|
| 1202 |
RTC->WPR = 0x53;
|
| 1203 |
|
| 1204 |
/* Configure the Alarm register */
|
| 1205 |
if (RTC_Alarm == RTC_Alarm_A)
|
| 1206 |
{
|
| 1207 |
RTC->ALRMAR = (uint32_t)tmpreg; |
| 1208 |
} |
| 1209 |
else
|
| 1210 |
{
|
| 1211 |
RTC->ALRMBR = (uint32_t)tmpreg; |
| 1212 |
} |
| 1213 |
|
| 1214 |
/* Enable the write protection for RTC registers */
|
| 1215 |
RTC->WPR = 0xFF;
|
| 1216 |
} |
| 1217 |
|
| 1218 |
/**
|
| 1219 |
* @brief Fills each RTC_AlarmStruct member with its default value
|
| 1220 |
* (Time = 00h:00mn:00sec / Date = 1st day of the month/Mask =
|
| 1221 |
* all fields are masked).
|
| 1222 |
* @param RTC_AlarmStruct: pointer to a @ref RTC_AlarmTypeDef structure which
|
| 1223 |
* will be initialized.
|
| 1224 |
* @retval None
|
| 1225 |
*/
|
| 1226 |
void RTC_AlarmStructInit(RTC_AlarmTypeDef* RTC_AlarmStruct)
|
| 1227 |
{
|
| 1228 |
/* Alarm Time Settings : Time = 00h:00mn:00sec */
|
| 1229 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = RTC_H12_AM; |
| 1230 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours = 0;
|
| 1231 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes = 0;
|
| 1232 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds = 0;
|
| 1233 |
|
| 1234 |
/* Alarm Date Settings : Date = 1st day of the month */
|
| 1235 |
RTC_AlarmStruct->RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date; |
| 1236 |
RTC_AlarmStruct->RTC_AlarmDateWeekDay = 1;
|
| 1237 |
|
| 1238 |
/* Alarm Masks Settings : Mask = all fields are not masked */
|
| 1239 |
RTC_AlarmStruct->RTC_AlarmMask = RTC_AlarmMask_None; |
| 1240 |
} |
| 1241 |
|
| 1242 |
/**
|
| 1243 |
* @brief Get the RTC Alarm value and masks.
|
| 1244 |
* @param RTC_Format: specifies the format of the output parameters.
|
| 1245 |
* This parameter can be one of the following values:
|
| 1246 |
* @arg RTC_Format_BIN: Binary data format
|
| 1247 |
* @arg RTC_Format_BCD: BCD data format
|
| 1248 |
* @param RTC_Alarm: specifies the alarm to be read.
|
| 1249 |
* This parameter can be one of the following values:
|
| 1250 |
* @arg RTC_Alarm_A: to select Alarm A
|
| 1251 |
* @arg RTC_Alarm_B: to select Alarm B
|
| 1252 |
* @param RTC_AlarmStruct: pointer to a RTC_AlarmTypeDef structure that will
|
| 1253 |
* contains the output alarm configuration values.
|
| 1254 |
* @retval None
|
| 1255 |
*/
|
| 1256 |
void RTC_GetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct)
|
| 1257 |
{
|
| 1258 |
uint32_t tmpreg = 0;
|
| 1259 |
|
| 1260 |
/* Check the parameters */
|
| 1261 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 1262 |
assert_param(IS_RTC_ALARM(RTC_Alarm)); |
| 1263 |
|
| 1264 |
/* Get the RTC_ALRMxR register */
|
| 1265 |
if (RTC_Alarm == RTC_Alarm_A)
|
| 1266 |
{
|
| 1267 |
tmpreg = (uint32_t)(RTC->ALRMAR); |
| 1268 |
} |
| 1269 |
else
|
| 1270 |
{
|
| 1271 |
tmpreg = (uint32_t)(RTC->ALRMBR); |
| 1272 |
} |
| 1273 |
|
| 1274 |
/* Fill the structure with the read parameters */
|
| 1275 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours = (uint32_t)((tmpreg & (RTC_ALRMAR_HT | \ |
| 1276 |
RTC_ALRMAR_HU)) >> 16);
|
| 1277 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes = (uint32_t)((tmpreg & (RTC_ALRMAR_MNT | \ |
| 1278 |
RTC_ALRMAR_MNU)) >> 8);
|
| 1279 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds = (uint32_t)(tmpreg & (RTC_ALRMAR_ST | \ |
| 1280 |
RTC_ALRMAR_SU)); |
| 1281 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = (uint32_t)((tmpreg & RTC_ALRMAR_PM) >> 16);
|
| 1282 |
RTC_AlarmStruct->RTC_AlarmDateWeekDay = (uint32_t)((tmpreg & (RTC_ALRMAR_DT | RTC_ALRMAR_DU)) >> 24);
|
| 1283 |
RTC_AlarmStruct->RTC_AlarmDateWeekDaySel = (uint32_t)(tmpreg & RTC_ALRMAR_WDSEL); |
| 1284 |
RTC_AlarmStruct->RTC_AlarmMask = (uint32_t)(tmpreg & RTC_AlarmMask_All); |
| 1285 |
|
| 1286 |
if (RTC_Format == RTC_Format_BIN)
|
| 1287 |
{
|
| 1288 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours = RTC_Bcd2ToByte(RTC_AlarmStruct-> \ |
| 1289 |
RTC_AlarmTime.RTC_Hours); |
| 1290 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes = RTC_Bcd2ToByte(RTC_AlarmStruct-> \ |
| 1291 |
RTC_AlarmTime.RTC_Minutes); |
| 1292 |
RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds = RTC_Bcd2ToByte(RTC_AlarmStruct-> \ |
| 1293 |
RTC_AlarmTime.RTC_Seconds); |
| 1294 |
RTC_AlarmStruct->RTC_AlarmDateWeekDay = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmDateWeekDay); |
| 1295 |
} |
| 1296 |
} |
| 1297 |
|
| 1298 |
/**
|
| 1299 |
* @brief Enables or disables the specified RTC Alarm.
|
| 1300 |
* @param RTC_Alarm: specifies the alarm to be configured.
|
| 1301 |
* This parameter can be any combination of the following values:
|
| 1302 |
* @arg RTC_Alarm_A: to select Alarm A
|
| 1303 |
* @arg RTC_Alarm_B: to select Alarm B
|
| 1304 |
* @param NewState: new state of the specified alarm.
|
| 1305 |
* This parameter can be: ENABLE or DISABLE.
|
| 1306 |
* @retval An ErrorStatus enumeration value:
|
| 1307 |
* - SUCCESS: RTC Alarm is enabled/disabled
|
| 1308 |
* - ERROR: RTC Alarm is not enabled/disabled
|
| 1309 |
*/
|
| 1310 |
ErrorStatus RTC_AlarmCmd(uint32_t RTC_Alarm, FunctionalState NewState) |
| 1311 |
{
|
| 1312 |
__IO uint32_t alarmcounter = 0x00;
|
| 1313 |
uint32_t alarmstatus = 0x00;
|
| 1314 |
ErrorStatus status = ERROR; |
| 1315 |
|
| 1316 |
/* Check the parameters */
|
| 1317 |
assert_param(IS_RTC_CMD_ALARM(RTC_Alarm)); |
| 1318 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 1319 |
|
| 1320 |
/* Disable the write protection for RTC registers */
|
| 1321 |
RTC->WPR = 0xCA;
|
| 1322 |
RTC->WPR = 0x53;
|
| 1323 |
|
| 1324 |
/* Configure the Alarm state */
|
| 1325 |
if (NewState != DISABLE)
|
| 1326 |
{
|
| 1327 |
RTC->CR |= (uint32_t)RTC_Alarm; |
| 1328 |
|
| 1329 |
status = SUCCESS; |
| 1330 |
} |
| 1331 |
else
|
| 1332 |
{
|
| 1333 |
/* Disable the Alarm in RTC_CR register */
|
| 1334 |
RTC->CR &= (uint32_t)~RTC_Alarm; |
| 1335 |
|
| 1336 |
/* Wait till RTC ALRxWF flag is set and if Time out is reached exit */
|
| 1337 |
do
|
| 1338 |
{
|
| 1339 |
alarmstatus = RTC->ISR & (RTC_Alarm >> 8);
|
| 1340 |
alarmcounter++; |
| 1341 |
} while((alarmcounter != INITMODE_TIMEOUT) && (alarmstatus == 0x00)); |
| 1342 |
|
| 1343 |
if ((RTC->ISR & (RTC_Alarm >> 8)) == RESET) |
| 1344 |
{
|
| 1345 |
status = ERROR; |
| 1346 |
} |
| 1347 |
else
|
| 1348 |
{
|
| 1349 |
status = SUCCESS; |
| 1350 |
} |
| 1351 |
} |
| 1352 |
|
| 1353 |
/* Enable the write protection for RTC registers */
|
| 1354 |
RTC->WPR = 0xFF;
|
| 1355 |
|
| 1356 |
return status;
|
| 1357 |
} |
| 1358 |
|
| 1359 |
/**
|
| 1360 |
* @brief Configure the RTC AlarmA/B Sub seconds value and mask.*
|
| 1361 |
* @note This function is performed only when the Alarm is disabled.
|
| 1362 |
* @param RTC_Alarm: specifies the alarm to be configured.
|
| 1363 |
* This parameter can be one of the following values:
|
| 1364 |
* @arg RTC_Alarm_A: to select Alarm A
|
| 1365 |
* @arg RTC_Alarm_B: to select Alarm B
|
| 1366 |
* @param RTC_AlarmSubSecondValue: specifies the Sub seconds value.
|
| 1367 |
* This parameter can be a value from 0 to 0x00007FFF.
|
| 1368 |
* @param RTC_AlarmSubSecondMask: specifies the Sub seconds Mask.
|
| 1369 |
* This parameter can be any combination of the following values:
|
| 1370 |
* @arg RTC_AlarmSubSecondMask_All : All Alarm SS fields are masked.
|
| 1371 |
* There is no comparison on sub seconds for Alarm.
|
| 1372 |
* @arg RTC_AlarmSubSecondMask_SS14_1 : SS[14:1] are don't care in Alarm comparison.
|
| 1373 |
* Only SS[0] is compared
|
| 1374 |
* @arg RTC_AlarmSubSecondMask_SS14_2 : SS[14:2] are don't care in Alarm comparison.
|
| 1375 |
* Only SS[1:0] are compared
|
| 1376 |
* @arg RTC_AlarmSubSecondMask_SS14_3 : SS[14:3] are don't care in Alarm comparison.
|
| 1377 |
* Only SS[2:0] are compared
|
| 1378 |
* @arg RTC_AlarmSubSecondMask_SS14_4 : SS[14:4] are don't care in Alarm comparison.
|
| 1379 |
* Only SS[3:0] are compared
|
| 1380 |
* @arg RTC_AlarmSubSecondMask_SS14_5 : SS[14:5] are don't care in Alarm comparison.
|
| 1381 |
* Only SS[4:0] are compared
|
| 1382 |
* @arg RTC_AlarmSubSecondMask_SS14_6 : SS[14:6] are don't care in Alarm comparison.
|
| 1383 |
* Only SS[5:0] are compared
|
| 1384 |
* @arg RTC_AlarmSubSecondMask_SS14_7 : SS[14:7] are don't care in Alarm comparison.
|
| 1385 |
* Only SS[6:0] are compared
|
| 1386 |
* @arg RTC_AlarmSubSecondMask_SS14_8 : SS[14:8] are don't care in Alarm comparison.
|
| 1387 |
* Only SS[7:0] are compared
|
| 1388 |
* @arg RTC_AlarmSubSecondMask_SS14_9 : SS[14:9] are don't care in Alarm comparison.
|
| 1389 |
* Only SS[8:0] are compared
|
| 1390 |
* @arg RTC_AlarmSubSecondMask_SS14_10: SS[14:10] are don't care in Alarm comparison.
|
| 1391 |
* Only SS[9:0] are compared
|
| 1392 |
* @arg RTC_AlarmSubSecondMask_SS14_11: SS[14:11] are don't care in Alarm comparison.
|
| 1393 |
* Only SS[10:0] are compared
|
| 1394 |
* @arg RTC_AlarmSubSecondMask_SS14_12: SS[14:12] are don't care in Alarm comparison.
|
| 1395 |
* Only SS[11:0] are compared
|
| 1396 |
* @arg RTC_AlarmSubSecondMask_SS14_13: SS[14:13] are don't care in Alarm comparison.
|
| 1397 |
* Only SS[12:0] are compared
|
| 1398 |
* @arg RTC_AlarmSubSecondMask_SS14 : SS[14] is don't care in Alarm comparison.
|
| 1399 |
* Only SS[13:0] are compared
|
| 1400 |
* @arg RTC_AlarmSubSecondMask_None : SS[14:0] are compared and must match
|
| 1401 |
* to activate alarm
|
| 1402 |
* @retval None
|
| 1403 |
*/
|
| 1404 |
void RTC_AlarmSubSecondConfig(uint32_t RTC_Alarm, uint32_t RTC_AlarmSubSecondValue, uint32_t RTC_AlarmSubSecondMask)
|
| 1405 |
{
|
| 1406 |
uint32_t tmpreg = 0;
|
| 1407 |
|
| 1408 |
/* Check the parameters */
|
| 1409 |
assert_param(IS_RTC_ALARM(RTC_Alarm)); |
| 1410 |
assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(RTC_AlarmSubSecondValue)); |
| 1411 |
assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(RTC_AlarmSubSecondMask)); |
| 1412 |
|
| 1413 |
/* Disable the write protection for RTC registers */
|
| 1414 |
RTC->WPR = 0xCA;
|
| 1415 |
RTC->WPR = 0x53;
|
| 1416 |
|
| 1417 |
/* Configure the Alarm A or Alarm B Sub Second registers */
|
| 1418 |
tmpreg = (uint32_t) (uint32_t)(RTC_AlarmSubSecondValue) | (uint32_t)(RTC_AlarmSubSecondMask); |
| 1419 |
|
| 1420 |
if (RTC_Alarm == RTC_Alarm_A)
|
| 1421 |
{
|
| 1422 |
/* Configure the Alarm A Sub Second register */
|
| 1423 |
RTC->ALRMASSR = tmpreg; |
| 1424 |
} |
| 1425 |
else
|
| 1426 |
{
|
| 1427 |
/* Configure the Alarm B Sub Second register */
|
| 1428 |
RTC->ALRMBSSR = tmpreg; |
| 1429 |
} |
| 1430 |
|
| 1431 |
/* Enable the write protection for RTC registers */
|
| 1432 |
RTC->WPR = 0xFF;
|
| 1433 |
|
| 1434 |
} |
| 1435 |
|
| 1436 |
/**
|
| 1437 |
* @brief Gets the RTC Alarm Sub seconds value.
|
| 1438 |
* @param RTC_Alarm: specifies the alarm to be read.
|
| 1439 |
* This parameter can be one of the following values:
|
| 1440 |
* @arg RTC_Alarm_A: to select Alarm A
|
| 1441 |
* @arg RTC_Alarm_B: to select Alarm B
|
| 1442 |
* @param None
|
| 1443 |
* @retval RTC Alarm Sub seconds value.
|
| 1444 |
*/
|
| 1445 |
uint32_t RTC_GetAlarmSubSecond(uint32_t RTC_Alarm) |
| 1446 |
{
|
| 1447 |
uint32_t tmpreg = 0;
|
| 1448 |
|
| 1449 |
/* Get the RTC_ALRMxR register */
|
| 1450 |
if (RTC_Alarm == RTC_Alarm_A)
|
| 1451 |
{
|
| 1452 |
tmpreg = (uint32_t)((RTC->ALRMASSR) & RTC_ALRMASSR_SS); |
| 1453 |
} |
| 1454 |
else
|
| 1455 |
{
|
| 1456 |
tmpreg = (uint32_t)((RTC->ALRMBSSR) & RTC_ALRMBSSR_SS); |
| 1457 |
} |
| 1458 |
|
| 1459 |
return (tmpreg);
|
| 1460 |
} |
| 1461 |
|
| 1462 |
/**
|
| 1463 |
* @}
|
| 1464 |
*/
|
| 1465 |
|
| 1466 |
/** @defgroup RTC_Group4 WakeUp Timer configuration functions
|
| 1467 |
* @brief WakeUp Timer configuration functions
|
| 1468 |
*
|
| 1469 |
@verbatim
|
| 1470 |
===============================================================================
|
| 1471 |
##### WakeUp Timer configuration functions #####
|
| 1472 |
===============================================================================
|
| 1473 |
|
| 1474 |
[..] This section provide functions allowing to program and read the RTC WakeUp.
|
| 1475 |
|
| 1476 |
@endverbatim
|
| 1477 |
* @{
|
| 1478 |
*/
|
| 1479 |
|
| 1480 |
/**
|
| 1481 |
* @brief Configures the RTC Wakeup clock source.
|
| 1482 |
* @note The WakeUp Clock source can only be changed when the RTC WakeUp
|
| 1483 |
* is disabled (Use the RTC_WakeUpCmd(DISABLE)).
|
| 1484 |
* @param RTC_WakeUpClock: Wakeup Clock source.
|
| 1485 |
* This parameter can be one of the following values:
|
| 1486 |
* @arg RTC_WakeUpClock_RTCCLK_Div16: RTC Wakeup Counter Clock = RTCCLK/16
|
| 1487 |
* @arg RTC_WakeUpClock_RTCCLK_Div8: RTC Wakeup Counter Clock = RTCCLK/8
|
| 1488 |
* @arg RTC_WakeUpClock_RTCCLK_Div4: RTC Wakeup Counter Clock = RTCCLK/4
|
| 1489 |
* @arg RTC_WakeUpClock_RTCCLK_Div2: RTC Wakeup Counter Clock = RTCCLK/2
|
| 1490 |
* @arg RTC_WakeUpClock_CK_SPRE_16bits: RTC Wakeup Counter Clock = CK_SPRE
|
| 1491 |
* @arg RTC_WakeUpClock_CK_SPRE_17bits: RTC Wakeup Counter Clock = CK_SPRE
|
| 1492 |
* @retval None
|
| 1493 |
*/
|
| 1494 |
void RTC_WakeUpClockConfig(uint32_t RTC_WakeUpClock)
|
| 1495 |
{
|
| 1496 |
/* Check the parameters */
|
| 1497 |
assert_param(IS_RTC_WAKEUP_CLOCK(RTC_WakeUpClock)); |
| 1498 |
|
| 1499 |
/* Disable the write protection for RTC registers */
|
| 1500 |
RTC->WPR = 0xCA;
|
| 1501 |
RTC->WPR = 0x53;
|
| 1502 |
|
| 1503 |
/* Clear the Wakeup Timer clock source bits in CR register */
|
| 1504 |
RTC->CR &= (uint32_t)~RTC_CR_WUCKSEL; |
| 1505 |
|
| 1506 |
/* Configure the clock source */
|
| 1507 |
RTC->CR |= (uint32_t)RTC_WakeUpClock; |
| 1508 |
|
| 1509 |
/* Enable the write protection for RTC registers */
|
| 1510 |
RTC->WPR = 0xFF;
|
| 1511 |
} |
| 1512 |
|
| 1513 |
/**
|
| 1514 |
* @brief Configures the RTC Wakeup counter.
|
| 1515 |
* @note The RTC WakeUp counter can only be written when the RTC WakeUp
|
| 1516 |
* is disabled (Use the RTC_WakeUpCmd(DISABLE)).
|
| 1517 |
* @param RTC_WakeUpCounter: specifies the WakeUp counter.
|
| 1518 |
* This parameter can be a value from 0x0000 to 0xFFFF.
|
| 1519 |
* @retval None
|
| 1520 |
*/
|
| 1521 |
void RTC_SetWakeUpCounter(uint32_t RTC_WakeUpCounter)
|
| 1522 |
{
|
| 1523 |
/* Check the parameters */
|
| 1524 |
assert_param(IS_RTC_WAKEUP_COUNTER(RTC_WakeUpCounter)); |
| 1525 |
|
| 1526 |
/* Disable the write protection for RTC registers */
|
| 1527 |
RTC->WPR = 0xCA;
|
| 1528 |
RTC->WPR = 0x53;
|
| 1529 |
|
| 1530 |
/* Configure the Wakeup Timer counter */
|
| 1531 |
RTC->WUTR = (uint32_t)RTC_WakeUpCounter; |
| 1532 |
|
| 1533 |
/* Enable the write protection for RTC registers */
|
| 1534 |
RTC->WPR = 0xFF;
|
| 1535 |
} |
| 1536 |
|
| 1537 |
/**
|
| 1538 |
* @brief Returns the RTC WakeUp timer counter value.
|
| 1539 |
* @param None
|
| 1540 |
* @retval The RTC WakeUp Counter value.
|
| 1541 |
*/
|
| 1542 |
uint32_t RTC_GetWakeUpCounter(void)
|
| 1543 |
{
|
| 1544 |
/* Get the counter value */
|
| 1545 |
return ((uint32_t)(RTC->WUTR & RTC_WUTR_WUT));
|
| 1546 |
} |
| 1547 |
|
| 1548 |
/**
|
| 1549 |
* @brief Enables or Disables the RTC WakeUp timer.
|
| 1550 |
* @param NewState: new state of the WakeUp timer.
|
| 1551 |
* This parameter can be: ENABLE or DISABLE.
|
| 1552 |
* @retval None
|
| 1553 |
*/
|
| 1554 |
ErrorStatus RTC_WakeUpCmd(FunctionalState NewState) |
| 1555 |
{
|
| 1556 |
__IO uint32_t wutcounter = 0x00;
|
| 1557 |
uint32_t wutwfstatus = 0x00;
|
| 1558 |
ErrorStatus status = ERROR; |
| 1559 |
|
| 1560 |
/* Check the parameters */
|
| 1561 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 1562 |
|
| 1563 |
/* Disable the write protection for RTC registers */
|
| 1564 |
RTC->WPR = 0xCA;
|
| 1565 |
RTC->WPR = 0x53;
|
| 1566 |
|
| 1567 |
if (NewState != DISABLE)
|
| 1568 |
{
|
| 1569 |
/* Enable the Wakeup Timer */
|
| 1570 |
RTC->CR |= (uint32_t)RTC_CR_WUTE; |
| 1571 |
status = SUCCESS; |
| 1572 |
} |
| 1573 |
else
|
| 1574 |
{
|
| 1575 |
/* Disable the Wakeup Timer */
|
| 1576 |
RTC->CR &= (uint32_t)~RTC_CR_WUTE; |
| 1577 |
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
|
| 1578 |
do
|
| 1579 |
{
|
| 1580 |
wutwfstatus = RTC->ISR & RTC_ISR_WUTWF; |
| 1581 |
wutcounter++; |
| 1582 |
} while((wutcounter != INITMODE_TIMEOUT) && (wutwfstatus == 0x00)); |
| 1583 |
|
| 1584 |
if ((RTC->ISR & RTC_ISR_WUTWF) == RESET)
|
| 1585 |
{
|
| 1586 |
status = ERROR; |
| 1587 |
} |
| 1588 |
else
|
| 1589 |
{
|
| 1590 |
status = SUCCESS; |
| 1591 |
} |
| 1592 |
} |
| 1593 |
|
| 1594 |
/* Enable the write protection for RTC registers */
|
| 1595 |
RTC->WPR = 0xFF;
|
| 1596 |
|
| 1597 |
return status;
|
| 1598 |
} |
| 1599 |
|
| 1600 |
/**
|
| 1601 |
* @}
|
| 1602 |
*/
|
| 1603 |
|
| 1604 |
/** @defgroup RTC_Group5 Daylight Saving configuration functions
|
| 1605 |
* @brief Daylight Saving configuration functions
|
| 1606 |
*
|
| 1607 |
@verbatim
|
| 1608 |
===============================================================================
|
| 1609 |
##### Daylight Saving configuration functions #####
|
| 1610 |
===============================================================================
|
| 1611 |
|
| 1612 |
[..] This section provide functions allowing to configure the RTC DayLight Saving.
|
| 1613 |
|
| 1614 |
@endverbatim
|
| 1615 |
* @{
|
| 1616 |
*/
|
| 1617 |
|
| 1618 |
/**
|
| 1619 |
* @brief Adds or substract one hour from the current time.
|
| 1620 |
* @param RTC_DayLightSaveOperation: the value of hour adjustment.
|
| 1621 |
* This parameter can be one of the following values:
|
| 1622 |
* @arg RTC_DayLightSaving_SUB1H: Substract one hour (winter time)
|
| 1623 |
* @arg RTC_DayLightSaving_ADD1H: Add one hour (summer time)
|
| 1624 |
* @param RTC_StoreOperation: Specifies the value to be written in the BCK bit
|
| 1625 |
* in CR register to store the operation.
|
| 1626 |
* This parameter can be one of the following values:
|
| 1627 |
* @arg RTC_StoreOperation_Reset: BCK Bit Reset
|
| 1628 |
* @arg RTC_StoreOperation_Set: BCK Bit Set
|
| 1629 |
* @retval None
|
| 1630 |
*/
|
| 1631 |
void RTC_DayLightSavingConfig(uint32_t RTC_DayLightSaving, uint32_t RTC_StoreOperation)
|
| 1632 |
{
|
| 1633 |
/* Check the parameters */
|
| 1634 |
assert_param(IS_RTC_DAYLIGHT_SAVING(RTC_DayLightSaving)); |
| 1635 |
assert_param(IS_RTC_STORE_OPERATION(RTC_StoreOperation)); |
| 1636 |
|
| 1637 |
/* Disable the write protection for RTC registers */
|
| 1638 |
RTC->WPR = 0xCA;
|
| 1639 |
RTC->WPR = 0x53;
|
| 1640 |
|
| 1641 |
/* Clear the bits to be configured */
|
| 1642 |
RTC->CR &= (uint32_t)~(RTC_CR_BCK); |
| 1643 |
|
| 1644 |
/* Configure the RTC_CR register */
|
| 1645 |
RTC->CR |= (uint32_t)(RTC_DayLightSaving | RTC_StoreOperation); |
| 1646 |
|
| 1647 |
/* Enable the write protection for RTC registers */
|
| 1648 |
RTC->WPR = 0xFF;
|
| 1649 |
} |
| 1650 |
|
| 1651 |
/**
|
| 1652 |
* @brief Returns the RTC Day Light Saving stored operation.
|
| 1653 |
* @param None
|
| 1654 |
* @retval RTC Day Light Saving stored operation.
|
| 1655 |
* - RTC_StoreOperation_Reset
|
| 1656 |
* - RTC_StoreOperation_Set
|
| 1657 |
*/
|
| 1658 |
uint32_t RTC_GetStoreOperation(void)
|
| 1659 |
{
|
| 1660 |
return (RTC->CR & RTC_CR_BCK);
|
| 1661 |
} |
| 1662 |
|
| 1663 |
/**
|
| 1664 |
* @}
|
| 1665 |
*/
|
| 1666 |
|
| 1667 |
/** @defgroup RTC_Group6 Output pin Configuration function
|
| 1668 |
* @brief Output pin Configuration function
|
| 1669 |
*
|
| 1670 |
@verbatim
|
| 1671 |
===============================================================================
|
| 1672 |
##### Output pin Configuration function #####
|
| 1673 |
===============================================================================
|
| 1674 |
|
| 1675 |
[..] This section provide functions allowing to configure the RTC Output source.
|
| 1676 |
|
| 1677 |
@endverbatim
|
| 1678 |
* @{
|
| 1679 |
*/
|
| 1680 |
|
| 1681 |
/**
|
| 1682 |
* @brief Configures the RTC output source (AFO_ALARM).
|
| 1683 |
* @param RTC_Output: Specifies which signal will be routed to the RTC output.
|
| 1684 |
* This parameter can be one of the following values:
|
| 1685 |
* @arg RTC_Output_Disable: No output selected
|
| 1686 |
* @arg RTC_Output_AlarmA: signal of AlarmA mapped to output
|
| 1687 |
* @arg RTC_Output_AlarmB: signal of AlarmB mapped to output
|
| 1688 |
* @arg RTC_Output_WakeUp: signal of WakeUp mapped to output
|
| 1689 |
* @param RTC_OutputPolarity: Specifies the polarity of the output signal.
|
| 1690 |
* This parameter can be one of the following:
|
| 1691 |
* @arg RTC_OutputPolarity_High: The output pin is high when the
|
| 1692 |
* ALRAF/ALRBF/WUTF is high (depending on OSEL)
|
| 1693 |
* @arg RTC_OutputPolarity_Low: The output pin is low when the
|
| 1694 |
* ALRAF/ALRBF/WUTF is high (depending on OSEL)
|
| 1695 |
* @retval None
|
| 1696 |
*/
|
| 1697 |
void RTC_OutputConfig(uint32_t RTC_Output, uint32_t RTC_OutputPolarity)
|
| 1698 |
{
|
| 1699 |
/* Check the parameters */
|
| 1700 |
assert_param(IS_RTC_OUTPUT(RTC_Output)); |
| 1701 |
assert_param(IS_RTC_OUTPUT_POL(RTC_OutputPolarity)); |
| 1702 |
|
| 1703 |
/* Disable the write protection for RTC registers */
|
| 1704 |
RTC->WPR = 0xCA;
|
| 1705 |
RTC->WPR = 0x53;
|
| 1706 |
|
| 1707 |
/* Clear the bits to be configured */
|
| 1708 |
RTC->CR &= (uint32_t)~(RTC_CR_OSEL | RTC_CR_POL); |
| 1709 |
|
| 1710 |
/* Configure the output selection and polarity */
|
| 1711 |
RTC->CR |= (uint32_t)(RTC_Output | RTC_OutputPolarity); |
| 1712 |
|
| 1713 |
/* Enable the write protection for RTC registers */
|
| 1714 |
RTC->WPR = 0xFF;
|
| 1715 |
} |
| 1716 |
|
| 1717 |
/**
|
| 1718 |
* @}
|
| 1719 |
*/
|
| 1720 |
|
| 1721 |
/** @defgroup RTC_Group7 Digital Calibration configuration functions
|
| 1722 |
* @brief Coarse Calibration configuration functions
|
| 1723 |
*
|
| 1724 |
@verbatim
|
| 1725 |
===============================================================================
|
| 1726 |
##### Digital Calibration configuration functions #####
|
| 1727 |
===============================================================================
|
| 1728 |
|
| 1729 |
@endverbatim
|
| 1730 |
* @{
|
| 1731 |
*/
|
| 1732 |
|
| 1733 |
/**
|
| 1734 |
* @brief Configures the Coarse calibration parameters.
|
| 1735 |
* @param RTC_CalibSign: specifies the sign of the coarse calibration value.
|
| 1736 |
* This parameter can be one of the following values:
|
| 1737 |
* @arg RTC_CalibSign_Positive: The value sign is positive
|
| 1738 |
* @arg RTC_CalibSign_Negative: The value sign is negative
|
| 1739 |
* @param Value: value of coarse calibration expressed in ppm (coded on 5 bits).
|
| 1740 |
*
|
| 1741 |
* @note This Calibration value should be between 0 and 63 when using negative
|
| 1742 |
* sign with a 2-ppm step.
|
| 1743 |
*
|
| 1744 |
* @note This Calibration value should be between 0 and 126 when using positive
|
| 1745 |
* sign with a 4-ppm step.
|
| 1746 |
*
|
| 1747 |
* @retval An ErrorStatus enumeration value:
|
| 1748 |
* - SUCCESS: RTC Coarse calibration are initialized
|
| 1749 |
* - ERROR: RTC Coarse calibration are not initialized
|
| 1750 |
*/
|
| 1751 |
ErrorStatus RTC_CoarseCalibConfig(uint32_t RTC_CalibSign, uint32_t Value) |
| 1752 |
{
|
| 1753 |
ErrorStatus status = ERROR; |
| 1754 |
|
| 1755 |
/* Check the parameters */
|
| 1756 |
assert_param(IS_RTC_CALIB_SIGN(RTC_CalibSign)); |
| 1757 |
assert_param(IS_RTC_CALIB_VALUE(Value)); |
| 1758 |
|
| 1759 |
/* Disable the write protection for RTC registers */
|
| 1760 |
RTC->WPR = 0xCA;
|
| 1761 |
RTC->WPR = 0x53;
|
| 1762 |
|
| 1763 |
/* Set Initialization mode */
|
| 1764 |
if (RTC_EnterInitMode() == ERROR)
|
| 1765 |
{
|
| 1766 |
status = ERROR; |
| 1767 |
} |
| 1768 |
else
|
| 1769 |
{
|
| 1770 |
/* Set the coarse calibration value */
|
| 1771 |
RTC->CALIBR = (uint32_t)(RTC_CalibSign | Value); |
| 1772 |
/* Exit Initialization mode */
|
| 1773 |
RTC_ExitInitMode(); |
| 1774 |
|
| 1775 |
status = SUCCESS; |
| 1776 |
} |
| 1777 |
|
| 1778 |
/* Enable the write protection for RTC registers */
|
| 1779 |
RTC->WPR = 0xFF;
|
| 1780 |
|
| 1781 |
return status;
|
| 1782 |
} |
| 1783 |
|
| 1784 |
/**
|
| 1785 |
* @brief Enables or disables the Coarse calibration process.
|
| 1786 |
* @param NewState: new state of the Coarse calibration.
|
| 1787 |
* This parameter can be: ENABLE or DISABLE.
|
| 1788 |
* @retval An ErrorStatus enumeration value:
|
| 1789 |
* - SUCCESS: RTC Coarse calibration are enabled/disabled
|
| 1790 |
* - ERROR: RTC Coarse calibration are not enabled/disabled
|
| 1791 |
*/
|
| 1792 |
ErrorStatus RTC_CoarseCalibCmd(FunctionalState NewState) |
| 1793 |
{
|
| 1794 |
ErrorStatus status = ERROR; |
| 1795 |
|
| 1796 |
/* Check the parameters */
|
| 1797 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 1798 |
|
| 1799 |
/* Disable the write protection for RTC registers */
|
| 1800 |
RTC->WPR = 0xCA;
|
| 1801 |
RTC->WPR = 0x53;
|
| 1802 |
|
| 1803 |
/* Set Initialization mode */
|
| 1804 |
if (RTC_EnterInitMode() == ERROR)
|
| 1805 |
{
|
| 1806 |
status = ERROR; |
| 1807 |
} |
| 1808 |
else
|
| 1809 |
{
|
| 1810 |
if (NewState != DISABLE)
|
| 1811 |
{
|
| 1812 |
/* Enable the Coarse Calibration */
|
| 1813 |
RTC->CR |= (uint32_t)RTC_CR_DCE; |
| 1814 |
} |
| 1815 |
else
|
| 1816 |
{
|
| 1817 |
/* Disable the Coarse Calibration */
|
| 1818 |
RTC->CR &= (uint32_t)~RTC_CR_DCE; |
| 1819 |
} |
| 1820 |
/* Exit Initialization mode */
|
| 1821 |
RTC_ExitInitMode(); |
| 1822 |
|
| 1823 |
status = SUCCESS; |
| 1824 |
} |
| 1825 |
|
| 1826 |
/* Enable the write protection for RTC registers */
|
| 1827 |
RTC->WPR = 0xFF;
|
| 1828 |
|
| 1829 |
return status;
|
| 1830 |
} |
| 1831 |
|
| 1832 |
/**
|
| 1833 |
* @brief Enables or disables the RTC clock to be output through the relative pin.
|
| 1834 |
* @param NewState: new state of the digital calibration Output.
|
| 1835 |
* This parameter can be: ENABLE or DISABLE.
|
| 1836 |
* @retval None
|
| 1837 |
*/
|
| 1838 |
void RTC_CalibOutputCmd(FunctionalState NewState)
|
| 1839 |
{
|
| 1840 |
/* Check the parameters */
|
| 1841 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 1842 |
|
| 1843 |
/* Disable the write protection for RTC registers */
|
| 1844 |
RTC->WPR = 0xCA;
|
| 1845 |
RTC->WPR = 0x53;
|
| 1846 |
|
| 1847 |
if (NewState != DISABLE)
|
| 1848 |
{
|
| 1849 |
/* Enable the RTC clock output */
|
| 1850 |
RTC->CR |= (uint32_t)RTC_CR_COE; |
| 1851 |
} |
| 1852 |
else
|
| 1853 |
{
|
| 1854 |
/* Disable the RTC clock output */
|
| 1855 |
RTC->CR &= (uint32_t)~RTC_CR_COE; |
| 1856 |
} |
| 1857 |
|
| 1858 |
/* Enable the write protection for RTC registers */
|
| 1859 |
RTC->WPR = 0xFF;
|
| 1860 |
} |
| 1861 |
|
| 1862 |
/**
|
| 1863 |
* @brief Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
|
| 1864 |
* @param RTC_CalibOutput : Select the Calibration output Selection .
|
| 1865 |
* This parameter can be one of the following values:
|
| 1866 |
* @arg RTC_CalibOutput_512Hz: A signal has a regular waveform at 512Hz.
|
| 1867 |
* @arg RTC_CalibOutput_1Hz : A signal has a regular waveform at 1Hz.
|
| 1868 |
* @retval None
|
| 1869 |
*/
|
| 1870 |
void RTC_CalibOutputConfig(uint32_t RTC_CalibOutput)
|
| 1871 |
{
|
| 1872 |
/* Check the parameters */
|
| 1873 |
assert_param(IS_RTC_CALIB_OUTPUT(RTC_CalibOutput)); |
| 1874 |
|
| 1875 |
/* Disable the write protection for RTC registers */
|
| 1876 |
RTC->WPR = 0xCA;
|
| 1877 |
RTC->WPR = 0x53;
|
| 1878 |
|
| 1879 |
/*clear flags before configuration */
|
| 1880 |
RTC->CR &= (uint32_t)~(RTC_CR_COSEL); |
| 1881 |
|
| 1882 |
/* Configure the RTC_CR register */
|
| 1883 |
RTC->CR |= (uint32_t)RTC_CalibOutput; |
| 1884 |
|
| 1885 |
/* Enable the write protection for RTC registers */
|
| 1886 |
RTC->WPR = 0xFF;
|
| 1887 |
} |
| 1888 |
|
| 1889 |
/**
|
| 1890 |
* @brief Configures the Smooth Calibration Settings.
|
| 1891 |
* @param RTC_SmoothCalibPeriod : Select the Smooth Calibration Period.
|
| 1892 |
* This parameter can be can be one of the following values:
|
| 1893 |
* @arg RTC_SmoothCalibPeriod_32sec : The smooth calibration period is 32s.
|
| 1894 |
* @arg RTC_SmoothCalibPeriod_16sec : The smooth calibration period is 16s.
|
| 1895 |
* @arg RTC_SmoothCalibPeriod_8sec : The smooth calibartion period is 8s.
|
| 1896 |
* @param RTC_SmoothCalibPlusPulses : Select to Set or reset the CALP bit.
|
| 1897 |
* This parameter can be one of the following values:
|
| 1898 |
* @arg RTC_SmoothCalibPlusPulses_Set : Add one RTCCLK puls every 2**11 pulses.
|
| 1899 |
* @arg RTC_SmoothCalibPlusPulses_Reset: No RTCCLK pulses are added.
|
| 1900 |
* @param RTC_SmouthCalibMinusPulsesValue: Select the value of CALM[8:0] bits.
|
| 1901 |
* This parameter can be one any value from 0 to 0x000001FF.
|
| 1902 |
* @retval An ErrorStatus enumeration value:
|
| 1903 |
* - SUCCESS: RTC Calib registers are configured
|
| 1904 |
* - ERROR: RTC Calib registers are not configured
|
| 1905 |
*/
|
| 1906 |
ErrorStatus RTC_SmoothCalibConfig(uint32_t RTC_SmoothCalibPeriod, |
| 1907 |
uint32_t RTC_SmoothCalibPlusPulses, |
| 1908 |
uint32_t RTC_SmouthCalibMinusPulsesValue) |
| 1909 |
{
|
| 1910 |
ErrorStatus status = ERROR; |
| 1911 |
uint32_t recalpfcount = 0;
|
| 1912 |
|
| 1913 |
/* Check the parameters */
|
| 1914 |
assert_param(IS_RTC_SMOOTH_CALIB_PERIOD(RTC_SmoothCalibPeriod)); |
| 1915 |
assert_param(IS_RTC_SMOOTH_CALIB_PLUS(RTC_SmoothCalibPlusPulses)); |
| 1916 |
assert_param(IS_RTC_SMOOTH_CALIB_MINUS(RTC_SmouthCalibMinusPulsesValue)); |
| 1917 |
|
| 1918 |
/* Disable the write protection for RTC registers */
|
| 1919 |
RTC->WPR = 0xCA;
|
| 1920 |
RTC->WPR = 0x53;
|
| 1921 |
|
| 1922 |
/* check if a calibration is pending*/
|
| 1923 |
if ((RTC->ISR & RTC_ISR_RECALPF) != RESET)
|
| 1924 |
{
|
| 1925 |
/* wait until the Calibration is completed*/
|
| 1926 |
while (((RTC->ISR & RTC_ISR_RECALPF) != RESET) && (recalpfcount != RECALPF_TIMEOUT))
|
| 1927 |
{
|
| 1928 |
recalpfcount++; |
| 1929 |
} |
| 1930 |
} |
| 1931 |
|
| 1932 |
/* check if the calibration pending is completed or if there is no calibration operation at all*/
|
| 1933 |
if ((RTC->ISR & RTC_ISR_RECALPF) == RESET)
|
| 1934 |
{
|
| 1935 |
/* Configure the Smooth calibration settings */
|
| 1936 |
RTC->CALR = (uint32_t)((uint32_t)RTC_SmoothCalibPeriod | (uint32_t)RTC_SmoothCalibPlusPulses | (uint32_t)RTC_SmouthCalibMinusPulsesValue); |
| 1937 |
|
| 1938 |
status = SUCCESS; |
| 1939 |
} |
| 1940 |
else
|
| 1941 |
{
|
| 1942 |
status = ERROR; |
| 1943 |
} |
| 1944 |
|
| 1945 |
/* Enable the write protection for RTC registers */
|
| 1946 |
RTC->WPR = 0xFF;
|
| 1947 |
|
| 1948 |
return (ErrorStatus)(status);
|
| 1949 |
} |
| 1950 |
|
| 1951 |
/**
|
| 1952 |
* @}
|
| 1953 |
*/
|
| 1954 |
|
| 1955 |
|
| 1956 |
/** @defgroup RTC_Group8 TimeStamp configuration functions
|
| 1957 |
* @brief TimeStamp configuration functions
|
| 1958 |
*
|
| 1959 |
@verbatim
|
| 1960 |
===============================================================================
|
| 1961 |
##### TimeStamp configuration functions #####
|
| 1962 |
===============================================================================
|
| 1963 |
|
| 1964 |
@endverbatim
|
| 1965 |
* @{
|
| 1966 |
*/
|
| 1967 |
|
| 1968 |
/**
|
| 1969 |
* @brief Enables or Disables the RTC TimeStamp functionality with the
|
| 1970 |
* specified time stamp pin stimulating edge.
|
| 1971 |
* @param RTC_TimeStampEdge: Specifies the pin edge on which the TimeStamp is
|
| 1972 |
* activated.
|
| 1973 |
* This parameter can be one of the following:
|
| 1974 |
* @arg RTC_TimeStampEdge_Rising: the Time stamp event occurs on the rising
|
| 1975 |
* edge of the related pin.
|
| 1976 |
* @arg RTC_TimeStampEdge_Falling: the Time stamp event occurs on the
|
| 1977 |
* falling edge of the related pin.
|
| 1978 |
* @param NewState: new state of the TimeStamp.
|
| 1979 |
* This parameter can be: ENABLE or DISABLE.
|
| 1980 |
* @retval None
|
| 1981 |
*/
|
| 1982 |
void RTC_TimeStampCmd(uint32_t RTC_TimeStampEdge, FunctionalState NewState)
|
| 1983 |
{
|
| 1984 |
uint32_t tmpreg = 0;
|
| 1985 |
|
| 1986 |
/* Check the parameters */
|
| 1987 |
assert_param(IS_RTC_TIMESTAMP_EDGE(RTC_TimeStampEdge)); |
| 1988 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 1989 |
|
| 1990 |
/* Get the RTC_CR register and clear the bits to be configured */
|
| 1991 |
tmpreg = (uint32_t)(RTC->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE)); |
| 1992 |
|
| 1993 |
/* Get the new configuration */
|
| 1994 |
if (NewState != DISABLE)
|
| 1995 |
{
|
| 1996 |
tmpreg |= (uint32_t)(RTC_TimeStampEdge | RTC_CR_TSE); |
| 1997 |
} |
| 1998 |
else
|
| 1999 |
{
|
| 2000 |
tmpreg |= (uint32_t)(RTC_TimeStampEdge); |
| 2001 |
} |
| 2002 |
|
| 2003 |
/* Disable the write protection for RTC registers */
|
| 2004 |
RTC->WPR = 0xCA;
|
| 2005 |
RTC->WPR = 0x53;
|
| 2006 |
|
| 2007 |
/* Configure the Time Stamp TSEDGE and Enable bits */
|
| 2008 |
RTC->CR = (uint32_t)tmpreg; |
| 2009 |
|
| 2010 |
/* Enable the write protection for RTC registers */
|
| 2011 |
RTC->WPR = 0xFF;
|
| 2012 |
} |
| 2013 |
|
| 2014 |
/**
|
| 2015 |
* @brief Get the RTC TimeStamp value and masks.
|
| 2016 |
* @param RTC_Format: specifies the format of the output parameters.
|
| 2017 |
* This parameter can be one of the following values:
|
| 2018 |
* @arg RTC_Format_BIN: Binary data format
|
| 2019 |
* @arg RTC_Format_BCD: BCD data format
|
| 2020 |
* @param RTC_StampTimeStruct: pointer to a RTC_TimeTypeDef structure that will
|
| 2021 |
* contains the TimeStamp time values.
|
| 2022 |
* @param RTC_StampDateStruct: pointer to a RTC_DateTypeDef structure that will
|
| 2023 |
* contains the TimeStamp date values.
|
| 2024 |
* @retval None
|
| 2025 |
*/
|
| 2026 |
void RTC_GetTimeStamp(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_StampTimeStruct,
|
| 2027 |
RTC_DateTypeDef* RTC_StampDateStruct) |
| 2028 |
{
|
| 2029 |
uint32_t tmptime = 0, tmpdate = 0; |
| 2030 |
|
| 2031 |
/* Check the parameters */
|
| 2032 |
assert_param(IS_RTC_FORMAT(RTC_Format)); |
| 2033 |
|
| 2034 |
/* Get the TimeStamp time and date registers values */
|
| 2035 |
tmptime = (uint32_t)(RTC->TSTR & RTC_TR_RESERVED_MASK); |
| 2036 |
tmpdate = (uint32_t)(RTC->TSDR & RTC_DR_RESERVED_MASK); |
| 2037 |
|
| 2038 |
/* Fill the Time structure fields with the read parameters */
|
| 2039 |
RTC_StampTimeStruct->RTC_Hours = (uint8_t)((tmptime & (RTC_TR_HT | RTC_TR_HU)) >> 16);
|
| 2040 |
RTC_StampTimeStruct->RTC_Minutes = (uint8_t)((tmptime & (RTC_TR_MNT | RTC_TR_MNU)) >> 8);
|
| 2041 |
RTC_StampTimeStruct->RTC_Seconds = (uint8_t)(tmptime & (RTC_TR_ST | RTC_TR_SU)); |
| 2042 |
RTC_StampTimeStruct->RTC_H12 = (uint8_t)((tmptime & (RTC_TR_PM)) >> 16);
|
| 2043 |
|
| 2044 |
/* Fill the Date structure fields with the read parameters */
|
| 2045 |
RTC_StampDateStruct->RTC_Year = 0;
|
| 2046 |
RTC_StampDateStruct->RTC_Month = (uint8_t)((tmpdate & (RTC_DR_MT | RTC_DR_MU)) >> 8);
|
| 2047 |
RTC_StampDateStruct->RTC_Date = (uint8_t)(tmpdate & (RTC_DR_DT | RTC_DR_DU)); |
| 2048 |
RTC_StampDateStruct->RTC_WeekDay = (uint8_t)((tmpdate & (RTC_DR_WDU)) >> 13);
|
| 2049 |
|
| 2050 |
/* Check the input parameters format */
|
| 2051 |
if (RTC_Format == RTC_Format_BIN)
|
| 2052 |
{
|
| 2053 |
/* Convert the Time structure parameters to Binary format */
|
| 2054 |
RTC_StampTimeStruct->RTC_Hours = (uint8_t)RTC_Bcd2ToByte(RTC_StampTimeStruct->RTC_Hours); |
| 2055 |
RTC_StampTimeStruct->RTC_Minutes = (uint8_t)RTC_Bcd2ToByte(RTC_StampTimeStruct->RTC_Minutes); |
| 2056 |
RTC_StampTimeStruct->RTC_Seconds = (uint8_t)RTC_Bcd2ToByte(RTC_StampTimeStruct->RTC_Seconds); |
| 2057 |
|
| 2058 |
/* Convert the Date structure parameters to Binary format */
|
| 2059 |
RTC_StampDateStruct->RTC_Month = (uint8_t)RTC_Bcd2ToByte(RTC_StampDateStruct->RTC_Month); |
| 2060 |
RTC_StampDateStruct->RTC_Date = (uint8_t)RTC_Bcd2ToByte(RTC_StampDateStruct->RTC_Date); |
| 2061 |
RTC_StampDateStruct->RTC_WeekDay = (uint8_t)RTC_Bcd2ToByte(RTC_StampDateStruct->RTC_WeekDay); |
| 2062 |
} |
| 2063 |
} |
| 2064 |
|
| 2065 |
/**
|
| 2066 |
* @brief Get the RTC timestamp Sub seconds value.
|
| 2067 |
* @param None
|
| 2068 |
* @retval RTC current timestamp Sub seconds value.
|
| 2069 |
*/
|
| 2070 |
uint32_t RTC_GetTimeStampSubSecond(void)
|
| 2071 |
{
|
| 2072 |
/* Get timestamp sub seconds values from the correspondent registers */
|
| 2073 |
return (uint32_t)(RTC->TSSSR);
|
| 2074 |
} |
| 2075 |
|
| 2076 |
/**
|
| 2077 |
* @}
|
| 2078 |
*/
|
| 2079 |
|
| 2080 |
/** @defgroup RTC_Group9 Tampers configuration functions
|
| 2081 |
* @brief Tampers configuration functions
|
| 2082 |
*
|
| 2083 |
@verbatim
|
| 2084 |
===============================================================================
|
| 2085 |
##### Tampers configuration functions #####
|
| 2086 |
===============================================================================
|
| 2087 |
|
| 2088 |
@endverbatim
|
| 2089 |
* @{
|
| 2090 |
*/
|
| 2091 |
|
| 2092 |
/**
|
| 2093 |
* @brief Configures the select Tamper pin edge.
|
| 2094 |
* @param RTC_Tamper: Selected tamper pin.
|
| 2095 |
* This parameter can be RTC_Tamper_1.
|
| 2096 |
* @param RTC_TamperTrigger: Specifies the trigger on the tamper pin that
|
| 2097 |
* stimulates tamper event.
|
| 2098 |
* This parameter can be one of the following values:
|
| 2099 |
* @arg RTC_TamperTrigger_RisingEdge: Rising Edge of the tamper pin causes tamper event.
|
| 2100 |
* @arg RTC_TamperTrigger_FallingEdge: Falling Edge of the tamper pin causes tamper event.
|
| 2101 |
* @arg RTC_TamperTrigger_LowLevel: Low Level of the tamper pin causes tamper event.
|
| 2102 |
* @arg RTC_TamperTrigger_HighLevel: High Level of the tamper pin causes tamper event.
|
| 2103 |
* @retval None
|
| 2104 |
*/
|
| 2105 |
void RTC_TamperTriggerConfig(uint32_t RTC_Tamper, uint32_t RTC_TamperTrigger)
|
| 2106 |
{
|
| 2107 |
/* Check the parameters */
|
| 2108 |
assert_param(IS_RTC_TAMPER(RTC_Tamper)); |
| 2109 |
assert_param(IS_RTC_TAMPER_TRIGGER(RTC_TamperTrigger)); |
| 2110 |
|
| 2111 |
if (RTC_TamperTrigger == RTC_TamperTrigger_RisingEdge)
|
| 2112 |
{
|
| 2113 |
/* Configure the RTC_TAFCR register */
|
| 2114 |
RTC->TAFCR &= (uint32_t)((uint32_t)~(RTC_Tamper << 1));
|
| 2115 |
} |
| 2116 |
else
|
| 2117 |
{
|
| 2118 |
/* Configure the RTC_TAFCR register */
|
| 2119 |
RTC->TAFCR |= (uint32_t)(RTC_Tamper << 1);
|
| 2120 |
} |
| 2121 |
} |
| 2122 |
|
| 2123 |
/**
|
| 2124 |
* @brief Enables or Disables the Tamper detection.
|
| 2125 |
* @param RTC_Tamper: Selected tamper pin.
|
| 2126 |
* This parameter can be RTC_Tamper_1.
|
| 2127 |
* @param NewState: new state of the tamper pin.
|
| 2128 |
* This parameter can be: ENABLE or DISABLE.
|
| 2129 |
* @retval None
|
| 2130 |
*/
|
| 2131 |
void RTC_TamperCmd(uint32_t RTC_Tamper, FunctionalState NewState)
|
| 2132 |
{
|
| 2133 |
/* Check the parameters */
|
| 2134 |
assert_param(IS_RTC_TAMPER(RTC_Tamper)); |
| 2135 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 2136 |
|
| 2137 |
if (NewState != DISABLE)
|
| 2138 |
{
|
| 2139 |
/* Enable the selected Tamper pin */
|
| 2140 |
RTC->TAFCR |= (uint32_t)RTC_Tamper; |
| 2141 |
} |
| 2142 |
else
|
| 2143 |
{
|
| 2144 |
/* Disable the selected Tamper pin */
|
| 2145 |
RTC->TAFCR &= (uint32_t)~RTC_Tamper; |
| 2146 |
} |
| 2147 |
} |
| 2148 |
|
| 2149 |
/**
|
| 2150 |
* @brief Configures the Tampers Filter.
|
| 2151 |
* @param RTC_TamperFilter: Specifies the tampers filter.
|
| 2152 |
* This parameter can be one of the following values:
|
| 2153 |
* @arg RTC_TamperFilter_Disable: Tamper filter is disabled.
|
| 2154 |
* @arg RTC_TamperFilter_2Sample: Tamper is activated after 2 consecutive
|
| 2155 |
* samples at the active level
|
| 2156 |
* @arg RTC_TamperFilter_4Sample: Tamper is activated after 4 consecutive
|
| 2157 |
* samples at the active level
|
| 2158 |
* @arg RTC_TamperFilter_8Sample: Tamper is activated after 8 consecutive
|
| 2159 |
* samples at the active level
|
| 2160 |
* @retval None
|
| 2161 |
*/
|
| 2162 |
void RTC_TamperFilterConfig(uint32_t RTC_TamperFilter)
|
| 2163 |
{
|
| 2164 |
/* Check the parameters */
|
| 2165 |
assert_param(IS_RTC_TAMPER_FILTER(RTC_TamperFilter)); |
| 2166 |
|
| 2167 |
/* Clear TAMPFLT[1:0] bits in the RTC_TAFCR register */
|
| 2168 |
RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPFLT); |
| 2169 |
|
| 2170 |
/* Configure the RTC_TAFCR register */
|
| 2171 |
RTC->TAFCR |= (uint32_t)RTC_TamperFilter; |
| 2172 |
} |
| 2173 |
|
| 2174 |
/**
|
| 2175 |
* @brief Configures the Tampers Sampling Frequency.
|
| 2176 |
* @param RTC_TamperSamplingFreq: Specifies the tampers Sampling Frequency.
|
| 2177 |
* This parameter can be one of the following values:
|
| 2178 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div32768: Each of the tamper inputs are sampled
|
| 2179 |
* with a frequency = RTCCLK / 32768
|
| 2180 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div16384: Each of the tamper inputs are sampled
|
| 2181 |
* with a frequency = RTCCLK / 16384
|
| 2182 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div8192: Each of the tamper inputs are sampled
|
| 2183 |
* with a frequency = RTCCLK / 8192
|
| 2184 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div4096: Each of the tamper inputs are sampled
|
| 2185 |
* with a frequency = RTCCLK / 4096
|
| 2186 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div2048: Each of the tamper inputs are sampled
|
| 2187 |
* with a frequency = RTCCLK / 2048
|
| 2188 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div1024: Each of the tamper inputs are sampled
|
| 2189 |
* with a frequency = RTCCLK / 1024
|
| 2190 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div512: Each of the tamper inputs are sampled
|
| 2191 |
* with a frequency = RTCCLK / 512
|
| 2192 |
* @arg RTC_TamperSamplingFreq_RTCCLK_Div256: Each of the tamper inputs are sampled
|
| 2193 |
* with a frequency = RTCCLK / 256
|
| 2194 |
* @retval None
|
| 2195 |
*/
|
| 2196 |
void RTC_TamperSamplingFreqConfig(uint32_t RTC_TamperSamplingFreq)
|
| 2197 |
{
|
| 2198 |
/* Check the parameters */
|
| 2199 |
assert_param(IS_RTC_TAMPER_SAMPLING_FREQ(RTC_TamperSamplingFreq)); |
| 2200 |
|
| 2201 |
/* Clear TAMPFREQ[2:0] bits in the RTC_TAFCR register */
|
| 2202 |
RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPFREQ); |
| 2203 |
|
| 2204 |
/* Configure the RTC_TAFCR register */
|
| 2205 |
RTC->TAFCR |= (uint32_t)RTC_TamperSamplingFreq; |
| 2206 |
} |
| 2207 |
|
| 2208 |
/**
|
| 2209 |
* @brief Configures the Tampers Pins input Precharge Duration.
|
| 2210 |
* @param RTC_TamperPrechargeDuration: Specifies the Tampers Pins input
|
| 2211 |
* Precharge Duration.
|
| 2212 |
* This parameter can be one of the following values:
|
| 2213 |
* @arg RTC_TamperPrechargeDuration_1RTCCLK: Tamper pins are precharged before sampling during 1 RTCCLK cycle
|
| 2214 |
* @arg RTC_TamperPrechargeDuration_2RTCCLK: Tamper pins are precharged before sampling during 2 RTCCLK cycle
|
| 2215 |
* @arg RTC_TamperPrechargeDuration_4RTCCLK: Tamper pins are precharged before sampling during 4 RTCCLK cycle
|
| 2216 |
* @arg RTC_TamperPrechargeDuration_8RTCCLK: Tamper pins are precharged before sampling during 8 RTCCLK cycle
|
| 2217 |
* @retval None
|
| 2218 |
*/
|
| 2219 |
void RTC_TamperPinsPrechargeDuration(uint32_t RTC_TamperPrechargeDuration)
|
| 2220 |
{
|
| 2221 |
/* Check the parameters */
|
| 2222 |
assert_param(IS_RTC_TAMPER_PRECHARGE_DURATION(RTC_TamperPrechargeDuration)); |
| 2223 |
|
| 2224 |
/* Clear TAMPPRCH[1:0] bits in the RTC_TAFCR register */
|
| 2225 |
RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPPRCH); |
| 2226 |
|
| 2227 |
/* Configure the RTC_TAFCR register */
|
| 2228 |
RTC->TAFCR |= (uint32_t)RTC_TamperPrechargeDuration; |
| 2229 |
} |
| 2230 |
|
| 2231 |
/**
|
| 2232 |
* @brief Enables or Disables the TimeStamp on Tamper Detection Event.
|
| 2233 |
* @note The timestamp is valid even the TSE bit in tamper control register
|
| 2234 |
* is reset.
|
| 2235 |
* @param NewState: new state of the timestamp on tamper event.
|
| 2236 |
* This parameter can be: ENABLE or DISABLE.
|
| 2237 |
* @retval None
|
| 2238 |
*/
|
| 2239 |
void RTC_TimeStampOnTamperDetectionCmd(FunctionalState NewState)
|
| 2240 |
{
|
| 2241 |
/* Check the parameters */
|
| 2242 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 2243 |
|
| 2244 |
if (NewState != DISABLE)
|
| 2245 |
{
|
| 2246 |
/* Save timestamp on tamper detection event */
|
| 2247 |
RTC->TAFCR |= (uint32_t)RTC_TAFCR_TAMPTS; |
| 2248 |
} |
| 2249 |
else
|
| 2250 |
{
|
| 2251 |
/* Tamper detection does not cause a timestamp to be saved */
|
| 2252 |
RTC->TAFCR &= (uint32_t)~RTC_TAFCR_TAMPTS; |
| 2253 |
} |
| 2254 |
} |
| 2255 |
|
| 2256 |
/**
|
| 2257 |
* @brief Enables or Disables the Precharge of Tamper pin.
|
| 2258 |
* @param NewState: new state of tamper pull up.
|
| 2259 |
* This parameter can be: ENABLE or DISABLE.
|
| 2260 |
* @retval None
|
| 2261 |
*/
|
| 2262 |
void RTC_TamperPullUpCmd(FunctionalState NewState)
|
| 2263 |
{
|
| 2264 |
/* Check the parameters */
|
| 2265 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 2266 |
|
| 2267 |
if (NewState != DISABLE)
|
| 2268 |
{
|
| 2269 |
/* Enable precharge of the selected Tamper pin */
|
| 2270 |
RTC->TAFCR &= (uint32_t)~RTC_TAFCR_TAMPPUDIS; |
| 2271 |
} |
| 2272 |
else
|
| 2273 |
{
|
| 2274 |
/* Disable precharge of the selected Tamper pin */
|
| 2275 |
RTC->TAFCR |= (uint32_t)RTC_TAFCR_TAMPPUDIS; |
| 2276 |
} |
| 2277 |
} |
| 2278 |
|
| 2279 |
/**
|
| 2280 |
* @}
|
| 2281 |
*/
|
| 2282 |
|
| 2283 |
/** @defgroup RTC_Group10 Backup Data Registers configuration functions
|
| 2284 |
* @brief Backup Data Registers configuration functions
|
| 2285 |
*
|
| 2286 |
@verbatim
|
| 2287 |
===============================================================================
|
| 2288 |
##### Backup Data Registers configuration functions #####
|
| 2289 |
===============================================================================
|
| 2290 |
|
| 2291 |
@endverbatim
|
| 2292 |
* @{
|
| 2293 |
*/
|
| 2294 |
|
| 2295 |
/**
|
| 2296 |
* @brief Writes a data in a specified RTC Backup data register.
|
| 2297 |
* @param RTC_BKP_DR: RTC Backup data Register number.
|
| 2298 |
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
|
| 2299 |
* specify the register.
|
| 2300 |
* @param Data: Data to be written in the specified RTC Backup data register.
|
| 2301 |
* @retval None
|
| 2302 |
*/
|
| 2303 |
void RTC_WriteBackupRegister(uint32_t RTC_BKP_DR, uint32_t Data)
|
| 2304 |
{
|
| 2305 |
__IO uint32_t tmp = 0;
|
| 2306 |
|
| 2307 |
/* Check the parameters */
|
| 2308 |
assert_param(IS_RTC_BKP(RTC_BKP_DR)); |
| 2309 |
|
| 2310 |
tmp = RTC_BASE + 0x50;
|
| 2311 |
tmp += (RTC_BKP_DR * 4);
|
| 2312 |
|
| 2313 |
/* Write the specified register */
|
| 2314 |
*(__IO uint32_t *)tmp = (uint32_t)Data; |
| 2315 |
} |
| 2316 |
|
| 2317 |
/**
|
| 2318 |
* @brief Reads data from the specified RTC Backup data Register.
|
| 2319 |
* @param RTC_BKP_DR: RTC Backup data Register number.
|
| 2320 |
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
|
| 2321 |
* specify the register.
|
| 2322 |
* @retval None
|
| 2323 |
*/
|
| 2324 |
uint32_t RTC_ReadBackupRegister(uint32_t RTC_BKP_DR) |
| 2325 |
{
|
| 2326 |
__IO uint32_t tmp = 0;
|
| 2327 |
|
| 2328 |
/* Check the parameters */
|
| 2329 |
assert_param(IS_RTC_BKP(RTC_BKP_DR)); |
| 2330 |
|
| 2331 |
tmp = RTC_BASE + 0x50;
|
| 2332 |
tmp += (RTC_BKP_DR * 4);
|
| 2333 |
|
| 2334 |
/* Read the specified register */
|
| 2335 |
return (*(__IO uint32_t *)tmp);
|
| 2336 |
} |
| 2337 |
|
| 2338 |
/**
|
| 2339 |
* @}
|
| 2340 |
*/
|
| 2341 |
|
| 2342 |
/** @defgroup RTC_Group11 RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration functions
|
| 2343 |
* @brief RTC Tamper and TimeStamp Pins Selection and Output Type Config
|
| 2344 |
* configuration functions
|
| 2345 |
*
|
| 2346 |
@verbatim
|
| 2347 |
==================================================================================================
|
| 2348 |
##### RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration functions #####
|
| 2349 |
==================================================================================================
|
| 2350 |
|
| 2351 |
@endverbatim
|
| 2352 |
* @{
|
| 2353 |
*/
|
| 2354 |
|
| 2355 |
/**
|
| 2356 |
* @brief Selects the RTC Tamper Pin.
|
| 2357 |
* @param RTC_TamperPin: specifies the RTC Tamper Pin.
|
| 2358 |
* This parameter can be one of the following values:
|
| 2359 |
* @arg RTC_TamperPin_PC13: PC13 is selected as RTC Tamper Pin.
|
| 2360 |
* @arg RTC_TamperPin_PI8: PI8 is selected as RTC Tamper Pin.
|
| 2361 |
* @retval None
|
| 2362 |
*/
|
| 2363 |
void RTC_TamperPinSelection(uint32_t RTC_TamperPin)
|
| 2364 |
{
|
| 2365 |
/* Check the parameters */
|
| 2366 |
assert_param(IS_RTC_TAMPER_PIN(RTC_TamperPin)); |
| 2367 |
|
| 2368 |
RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPINSEL); |
| 2369 |
RTC->TAFCR |= (uint32_t)(RTC_TamperPin); |
| 2370 |
} |
| 2371 |
|
| 2372 |
/**
|
| 2373 |
* @brief Selects the RTC TimeStamp Pin.
|
| 2374 |
* @param RTC_TimeStampPin: specifies the RTC TimeStamp Pin.
|
| 2375 |
* This parameter can be one of the following values:
|
| 2376 |
* @arg RTC_TimeStampPin_PC13: PC13 is selected as RTC TimeStamp Pin.
|
| 2377 |
* @arg RTC_TimeStampPin_PI8: PI8 is selected as RTC TimeStamp Pin.
|
| 2378 |
* @retval None
|
| 2379 |
*/
|
| 2380 |
void RTC_TimeStampPinSelection(uint32_t RTC_TimeStampPin)
|
| 2381 |
{
|
| 2382 |
/* Check the parameters */
|
| 2383 |
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin)); |
| 2384 |
|
| 2385 |
RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TSINSEL); |
| 2386 |
RTC->TAFCR |= (uint32_t)(RTC_TimeStampPin); |
| 2387 |
} |
| 2388 |
|
| 2389 |
/**
|
| 2390 |
* @brief Configures the RTC Output Pin mode.
|
| 2391 |
* @param RTC_OutputType: specifies the RTC Output (PC13) pin mode.
|
| 2392 |
* This parameter can be one of the following values:
|
| 2393 |
* @arg RTC_OutputType_OpenDrain: RTC Output (PC13) is configured in
|
| 2394 |
* Open Drain mode.
|
| 2395 |
* @arg RTC_OutputType_PushPull: RTC Output (PC13) is configured in
|
| 2396 |
* Push Pull mode.
|
| 2397 |
* @retval None
|
| 2398 |
*/
|
| 2399 |
void RTC_OutputTypeConfig(uint32_t RTC_OutputType)
|
| 2400 |
{
|
| 2401 |
/* Check the parameters */
|
| 2402 |
assert_param(IS_RTC_OUTPUT_TYPE(RTC_OutputType)); |
| 2403 |
|
| 2404 |
RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_ALARMOUTTYPE); |
| 2405 |
RTC->TAFCR |= (uint32_t)(RTC_OutputType); |
| 2406 |
} |
| 2407 |
|
| 2408 |
/**
|
| 2409 |
* @}
|
| 2410 |
*/
|
| 2411 |
|
| 2412 |
/** @defgroup RTC_Group12 Shift control synchronisation functions
|
| 2413 |
* @brief Shift control synchronisation functions
|
| 2414 |
*
|
| 2415 |
@verbatim
|
| 2416 |
===============================================================================
|
| 2417 |
##### Shift control synchronisation functions #####
|
| 2418 |
===============================================================================
|
| 2419 |
|
| 2420 |
@endverbatim
|
| 2421 |
* @{
|
| 2422 |
*/
|
| 2423 |
|
| 2424 |
/**
|
| 2425 |
* @brief Configures the Synchronization Shift Control Settings.
|
| 2426 |
* @note When REFCKON is set, firmware must not write to Shift control register
|
| 2427 |
* @param RTC_ShiftAdd1S : Select to add or not 1 second to the time Calendar.
|
| 2428 |
* This parameter can be one of the following values :
|
| 2429 |
* @arg RTC_ShiftAdd1S_Set : Add one second to the clock calendar.
|
| 2430 |
* @arg RTC_ShiftAdd1S_Reset: No effect.
|
| 2431 |
* @param RTC_ShiftSubFS: Select the number of Second Fractions to Substitute.
|
| 2432 |
* This parameter can be one any value from 0 to 0x7FFF.
|
| 2433 |
* @retval An ErrorStatus enumeration value:
|
| 2434 |
* - SUCCESS: RTC Shift registers are configured
|
| 2435 |
* - ERROR: RTC Shift registers are not configured
|
| 2436 |
*/
|
| 2437 |
ErrorStatus RTC_SynchroShiftConfig(uint32_t RTC_ShiftAdd1S, uint32_t RTC_ShiftSubFS) |
| 2438 |
{
|
| 2439 |
ErrorStatus status = ERROR; |
| 2440 |
uint32_t shpfcount = 0;
|
| 2441 |
|
| 2442 |
/* Check the parameters */
|
| 2443 |
assert_param(IS_RTC_SHIFT_ADD1S(RTC_ShiftAdd1S)); |
| 2444 |
assert_param(IS_RTC_SHIFT_SUBFS(RTC_ShiftSubFS)); |
| 2445 |
|
| 2446 |
/* Disable the write protection for RTC registers */
|
| 2447 |
RTC->WPR = 0xCA;
|
| 2448 |
RTC->WPR = 0x53;
|
| 2449 |
|
| 2450 |
/* Check if a Shift is pending*/
|
| 2451 |
if ((RTC->ISR & RTC_ISR_SHPF) != RESET)
|
| 2452 |
{
|
| 2453 |
/* Wait until the shift is completed*/
|
| 2454 |
while (((RTC->ISR & RTC_ISR_SHPF) != RESET) && (shpfcount != SHPF_TIMEOUT))
|
| 2455 |
{
|
| 2456 |
shpfcount++; |
| 2457 |
} |
| 2458 |
} |
| 2459 |
|
| 2460 |
/* Check if the Shift pending is completed or if there is no Shift operation at all*/
|
| 2461 |
if ((RTC->ISR & RTC_ISR_SHPF) == RESET)
|
| 2462 |
{
|
| 2463 |
/* check if the reference clock detection is disabled */
|
| 2464 |
if((RTC->CR & RTC_CR_REFCKON) == RESET)
|
| 2465 |
{
|
| 2466 |
/* Configure the Shift settings */
|
| 2467 |
RTC->SHIFTR = (uint32_t)(uint32_t)(RTC_ShiftSubFS) | (uint32_t)(RTC_ShiftAdd1S); |
| 2468 |
|
| 2469 |
if(RTC_WaitForSynchro() == ERROR)
|
| 2470 |
{
|
| 2471 |
status = ERROR; |
| 2472 |
} |
| 2473 |
else
|
| 2474 |
{
|
| 2475 |
status = SUCCESS; |
| 2476 |
} |
| 2477 |
} |
| 2478 |
else
|
| 2479 |
{
|
| 2480 |
status = ERROR; |
| 2481 |
} |
| 2482 |
} |
| 2483 |
else
|
| 2484 |
{
|
| 2485 |
status = ERROR; |
| 2486 |
} |
| 2487 |
|
| 2488 |
/* Enable the write protection for RTC registers */
|
| 2489 |
RTC->WPR = 0xFF;
|
| 2490 |
|
| 2491 |
return (ErrorStatus)(status);
|
| 2492 |
} |
| 2493 |
|
| 2494 |
/**
|
| 2495 |
* @}
|
| 2496 |
*/
|
| 2497 |
|
| 2498 |
/** @defgroup RTC_Group13 Interrupts and flags management functions
|
| 2499 |
* @brief Interrupts and flags management functions
|
| 2500 |
*
|
| 2501 |
@verbatim
|
| 2502 |
===============================================================================
|
| 2503 |
##### Interrupts and flags management functions #####
|
| 2504 |
===============================================================================
|
| 2505 |
[..] All RTC interrupts are connected to the EXTI controller.
|
| 2506 |
|
| 2507 |
(+) To enable the RTC Alarm interrupt, the following sequence is required:
|
| 2508 |
(++) Configure and enable the EXTI Line 17 in interrupt mode and select
|
| 2509 |
the rising edge sensitivity using the EXTI_Init() function.
|
| 2510 |
(++) Configure and enable the RTC_Alarm IRQ channel in the NVIC using the
|
| 2511 |
NVIC_Init() function.
|
| 2512 |
(++) Configure the RTC to generate RTC alarms (Alarm A and/or Alarm B) using
|
| 2513 |
the RTC_SetAlarm() and RTC_AlarmCmd() functions.
|
| 2514 |
|
| 2515 |
(+) To enable the RTC Wakeup interrupt, the following sequence is required:
|
| 2516 |
(++) Configure and enable the EXTI Line 22 in interrupt mode and select the
|
| 2517 |
rising edge sensitivity using the EXTI_Init() function.
|
| 2518 |
(++) Configure and enable the RTC_WKUP IRQ channel in the NVIC using the
|
| 2519 |
NVIC_Init() function.
|
| 2520 |
(++) Configure the RTC to generate the RTC wakeup timer event using the
|
| 2521 |
RTC_WakeUpClockConfig(), RTC_SetWakeUpCounter() and RTC_WakeUpCmd()
|
| 2522 |
functions.
|
| 2523 |
|
| 2524 |
(+) To enable the RTC Tamper interrupt, the following sequence is required:
|
| 2525 |
(++) Configure and enable the EXTI Line 21 in interrupt mode and select
|
| 2526 |
the rising edge sensitivity using the EXTI_Init() function.
|
| 2527 |
(++) Configure and enable the TAMP_STAMP IRQ channel in the NVIC using the
|
| 2528 |
NVIC_Init() function.
|
| 2529 |
(++) Configure the RTC to detect the RTC tamper event using the
|
| 2530 |
RTC_TamperTriggerConfig() and RTC_TamperCmd() functions.
|
| 2531 |
|
| 2532 |
(+) To enable the RTC TimeStamp interrupt, the following sequence is required:
|
| 2533 |
(++) Configure and enable the EXTI Line 21 in interrupt mode and select the
|
| 2534 |
rising edge sensitivity using the EXTI_Init() function.
|
| 2535 |
(++) Configure and enable the TAMP_STAMP IRQ channel in the NVIC using the
|
| 2536 |
NVIC_Init() function.
|
| 2537 |
(++) Configure the RTC to detect the RTC time stamp event using the
|
| 2538 |
RTC_TimeStampCmd() functions.
|
| 2539 |
|
| 2540 |
@endverbatim
|
| 2541 |
* @{
|
| 2542 |
*/
|
| 2543 |
|
| 2544 |
/**
|
| 2545 |
* @brief Enables or disables the specified RTC interrupts.
|
| 2546 |
* @param RTC_IT: specifies the RTC interrupt sources to be enabled or disabled.
|
| 2547 |
* This parameter can be any combination of the following values:
|
| 2548 |
* @arg RTC_IT_TS: Time Stamp interrupt mask
|
| 2549 |
* @arg RTC_IT_WUT: WakeUp Timer interrupt mask
|
| 2550 |
* @arg RTC_IT_ALRB: Alarm B interrupt mask
|
| 2551 |
* @arg RTC_IT_ALRA: Alarm A interrupt mask
|
| 2552 |
* @arg RTC_IT_TAMP: Tamper event interrupt mask
|
| 2553 |
* @param NewState: new state of the specified RTC interrupts.
|
| 2554 |
* This parameter can be: ENABLE or DISABLE.
|
| 2555 |
* @retval None
|
| 2556 |
*/
|
| 2557 |
void RTC_ITConfig(uint32_t RTC_IT, FunctionalState NewState)
|
| 2558 |
{
|
| 2559 |
/* Check the parameters */
|
| 2560 |
assert_param(IS_RTC_CONFIG_IT(RTC_IT)); |
| 2561 |
assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| 2562 |
|
| 2563 |
/* Disable the write protection for RTC registers */
|
| 2564 |
RTC->WPR = 0xCA;
|
| 2565 |
RTC->WPR = 0x53;
|
| 2566 |
|
| 2567 |
if (NewState != DISABLE)
|
| 2568 |
{
|
| 2569 |
/* Configure the Interrupts in the RTC_CR register */
|
| 2570 |
RTC->CR |= (uint32_t)(RTC_IT & ~RTC_TAFCR_TAMPIE); |
| 2571 |
/* Configure the Tamper Interrupt in the RTC_TAFCR */
|
| 2572 |
RTC->TAFCR |= (uint32_t)(RTC_IT & RTC_TAFCR_TAMPIE); |
| 2573 |
} |
| 2574 |
else
|
| 2575 |
{
|
| 2576 |
/* Configure the Interrupts in the RTC_CR register */
|
| 2577 |
RTC->CR &= (uint32_t)~(RTC_IT & (uint32_t)~RTC_TAFCR_TAMPIE); |
| 2578 |
/* Configure the Tamper Interrupt in the RTC_TAFCR */
|
| 2579 |
RTC->TAFCR &= (uint32_t)~(RTC_IT & RTC_TAFCR_TAMPIE); |
| 2580 |
} |
| 2581 |
/* Enable the write protection for RTC registers */
|
| 2582 |
RTC->WPR = 0xFF;
|
| 2583 |
} |
| 2584 |
|
| 2585 |
/**
|
| 2586 |
* @brief Checks whether the specified RTC flag is set or not.
|
| 2587 |
* @param RTC_FLAG: specifies the flag to check.
|
| 2588 |
* This parameter can be one of the following values:
|
| 2589 |
* @arg RTC_FLAG_RECALPF: RECALPF event flag.
|
| 2590 |
* @arg RTC_FLAG_TAMP1F: Tamper 1 event flag
|
| 2591 |
* @arg RTC_FLAG_TSOVF: Time Stamp OverFlow flag
|
| 2592 |
* @arg RTC_FLAG_TSF: Time Stamp event flag
|
| 2593 |
* @arg RTC_FLAG_WUTF: WakeUp Timer flag
|
| 2594 |
* @arg RTC_FLAG_ALRBF: Alarm B flag
|
| 2595 |
* @arg RTC_FLAG_ALRAF: Alarm A flag
|
| 2596 |
* @arg RTC_FLAG_INITF: Initialization mode flag
|
| 2597 |
* @arg RTC_FLAG_RSF: Registers Synchronized flag
|
| 2598 |
* @arg RTC_FLAG_INITS: Registers Configured flag
|
| 2599 |
* @arg RTC_FLAG_SHPF: Shift operation pending flag.
|
| 2600 |
* @arg RTC_FLAG_WUTWF: WakeUp Timer Write flag
|
| 2601 |
* @arg RTC_FLAG_ALRBWF: Alarm B Write flag
|
| 2602 |
* @arg RTC_FLAG_ALRAWF: Alarm A write flag
|
| 2603 |
* @retval The new state of RTC_FLAG (SET or RESET).
|
| 2604 |
*/
|
| 2605 |
FlagStatus RTC_GetFlagStatus(uint32_t RTC_FLAG) |
| 2606 |
{
|
| 2607 |
FlagStatus bitstatus = RESET; |
| 2608 |
uint32_t tmpreg = 0;
|
| 2609 |
|
| 2610 |
/* Check the parameters */
|
| 2611 |
assert_param(IS_RTC_GET_FLAG(RTC_FLAG)); |
| 2612 |
|
| 2613 |
/* Get all the flags */
|
| 2614 |
tmpreg = (uint32_t)(RTC->ISR & RTC_FLAGS_MASK); |
| 2615 |
|
| 2616 |
/* Return the status of the flag */
|
| 2617 |
if ((tmpreg & RTC_FLAG) != (uint32_t)RESET)
|
| 2618 |
{
|
| 2619 |
bitstatus = SET; |
| 2620 |
} |
| 2621 |
else
|
| 2622 |
{
|
| 2623 |
bitstatus = RESET; |
| 2624 |
} |
| 2625 |
return bitstatus;
|
| 2626 |
} |
| 2627 |
|
| 2628 |
/**
|
| 2629 |
* @brief Clears the RTC's pending flags.
|
| 2630 |
* @param RTC_FLAG: specifies the RTC flag to clear.
|
| 2631 |
* This parameter can be any combination of the following values:
|
| 2632 |
* @arg RTC_FLAG_TAMP1F: Tamper 1 event flag
|
| 2633 |
* @arg RTC_FLAG_TSOVF: Time Stamp Overflow flag
|
| 2634 |
* @arg RTC_FLAG_TSF: Time Stamp event flag
|
| 2635 |
* @arg RTC_FLAG_WUTF: WakeUp Timer flag
|
| 2636 |
* @arg RTC_FLAG_ALRBF: Alarm B flag
|
| 2637 |
* @arg RTC_FLAG_ALRAF: Alarm A flag
|
| 2638 |
* @arg RTC_FLAG_RSF: Registers Synchronized flag
|
| 2639 |
* @retval None
|
| 2640 |
*/
|
| 2641 |
void RTC_ClearFlag(uint32_t RTC_FLAG)
|
| 2642 |
{
|
| 2643 |
/* Check the parameters */
|
| 2644 |
assert_param(IS_RTC_CLEAR_FLAG(RTC_FLAG)); |
| 2645 |
|
| 2646 |
/* Clear the Flags in the RTC_ISR register */
|
| 2647 |
RTC->ISR = (uint32_t)((uint32_t)(~((RTC_FLAG | RTC_ISR_INIT)& 0x0000FFFF) | (uint32_t)(RTC->ISR & RTC_ISR_INIT)));
|
| 2648 |
} |
| 2649 |
|
| 2650 |
/**
|
| 2651 |
* @brief Checks whether the specified RTC interrupt has occurred or not.
|
| 2652 |
* @param RTC_IT: specifies the RTC interrupt source to check.
|
| 2653 |
* This parameter can be one of the following values:
|
| 2654 |
* @arg RTC_IT_TS: Time Stamp interrupt
|
| 2655 |
* @arg RTC_IT_WUT: WakeUp Timer interrupt
|
| 2656 |
* @arg RTC_IT_ALRB: Alarm B interrupt
|
| 2657 |
* @arg RTC_IT_ALRA: Alarm A interrupt
|
| 2658 |
* @arg RTC_IT_TAMP1: Tamper 1 event interrupt
|
| 2659 |
* @retval The new state of RTC_IT (SET or RESET).
|
| 2660 |
*/
|
| 2661 |
ITStatus RTC_GetITStatus(uint32_t RTC_IT) |
| 2662 |
{
|
| 2663 |
ITStatus bitstatus = RESET; |
| 2664 |
uint32_t tmpreg = 0, enablestatus = 0; |
| 2665 |
|
| 2666 |
/* Check the parameters */
|
| 2667 |
assert_param(IS_RTC_GET_IT(RTC_IT)); |
| 2668 |
|
| 2669 |
/* Get the TAMPER Interrupt enable bit and pending bit */
|
| 2670 |
tmpreg = (uint32_t)(RTC->TAFCR & (RTC_TAFCR_TAMPIE)); |
| 2671 |
|
| 2672 |
/* Get the Interrupt enable Status */
|
| 2673 |
enablestatus = (uint32_t)((RTC->CR & RTC_IT) | (tmpreg & (RTC_IT >> 15)));
|
| 2674 |
|
| 2675 |
/* Get the Interrupt pending bit */
|
| 2676 |
tmpreg = (uint32_t)((RTC->ISR & (uint32_t)(RTC_IT >> 4)));
|
| 2677 |
|
| 2678 |
/* Get the status of the Interrupt */
|
| 2679 |
if ((enablestatus != (uint32_t)RESET) && ((tmpreg & 0x0000FFFF) != (uint32_t)RESET)) |
| 2680 |
{
|
| 2681 |
bitstatus = SET; |
| 2682 |
} |
| 2683 |
else
|
| 2684 |
{
|
| 2685 |
bitstatus = RESET; |
| 2686 |
} |
| 2687 |
return bitstatus;
|
| 2688 |
} |
| 2689 |
|
| 2690 |
/**
|
| 2691 |
* @brief Clears the RTC's interrupt pending bits.
|
| 2692 |
* @param RTC_IT: specifies the RTC interrupt pending bit to clear.
|
| 2693 |
* This parameter can be any combination of the following values:
|
| 2694 |
* @arg RTC_IT_TS: Time Stamp interrupt
|
| 2695 |
* @arg RTC_IT_WUT: WakeUp Timer interrupt
|
| 2696 |
* @arg RTC_IT_ALRB: Alarm B interrupt
|
| 2697 |
* @arg RTC_IT_ALRA: Alarm A interrupt
|
| 2698 |
* @arg RTC_IT_TAMP1: Tamper 1 event interrupt
|
| 2699 |
* @retval None
|
| 2700 |
*/
|
| 2701 |
void RTC_ClearITPendingBit(uint32_t RTC_IT)
|
| 2702 |
{
|
| 2703 |
uint32_t tmpreg = 0;
|
| 2704 |
|
| 2705 |
/* Check the parameters */
|
| 2706 |
assert_param(IS_RTC_CLEAR_IT(RTC_IT)); |
| 2707 |
|
| 2708 |
/* Get the RTC_ISR Interrupt pending bits mask */
|
| 2709 |
tmpreg = (uint32_t)(RTC_IT >> 4);
|
| 2710 |
|
| 2711 |
/* Clear the interrupt pending bits in the RTC_ISR register */
|
| 2712 |
RTC->ISR = (uint32_t)((uint32_t)(~((tmpreg | RTC_ISR_INIT)& 0x0000FFFF) | (uint32_t)(RTC->ISR & RTC_ISR_INIT)));
|
| 2713 |
} |
| 2714 |
|
| 2715 |
/**
|
| 2716 |
* @}
|
| 2717 |
*/
|
| 2718 |
|
| 2719 |
/**
|
| 2720 |
* @brief Converts a 2 digit decimal to BCD format.
|
| 2721 |
* @param Value: Byte to be converted.
|
| 2722 |
* @retval Converted byte
|
| 2723 |
*/
|
| 2724 |
static uint8_t RTC_ByteToBcd2(uint8_t Value)
|
| 2725 |
{
|
| 2726 |
uint8_t bcdhigh = 0;
|
| 2727 |
|
| 2728 |
while (Value >= 10) |
| 2729 |
{
|
| 2730 |
bcdhigh++; |
| 2731 |
Value -= 10;
|
| 2732 |
} |
| 2733 |
|
| 2734 |
return ((uint8_t)(bcdhigh << 4) | Value); |
| 2735 |
} |
| 2736 |
|
| 2737 |
/**
|
| 2738 |
* @brief Convert from 2 digit BCD to Binary.
|
| 2739 |
* @param Value: BCD value to be converted.
|
| 2740 |
* @retval Converted word
|
| 2741 |
*/
|
| 2742 |
static uint8_t RTC_Bcd2ToByte(uint8_t Value)
|
| 2743 |
{
|
| 2744 |
uint8_t tmp = 0;
|
| 2745 |
tmp = ((uint8_t)(Value & (uint8_t)0xF0) >> (uint8_t)0x4) * 10; |
| 2746 |
return (tmp + (Value & (uint8_t)0x0F)); |
| 2747 |
} |
| 2748 |
|
| 2749 |
/**
|
| 2750 |
* @}
|
| 2751 |
*/
|
| 2752 |
|
| 2753 |
/**
|
| 2754 |
* @}
|
| 2755 |
*/
|
| 2756 |
|
| 2757 |
/**
|
| 2758 |
* @}
|
| 2759 |
*/
|
| 2760 |
|
| 2761 |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|