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Diffstat (limited to 'stm/stmperiph/stm32f4xx_rtc.c')
| -rw-r--r-- | stm/stmperiph/stm32f4xx_rtc.c | 2761 |
1 files changed, 0 insertions, 2761 deletions
diff --git a/stm/stmperiph/stm32f4xx_rtc.c b/stm/stmperiph/stm32f4xx_rtc.c deleted file mode 100644 index 5d96db5a3a..0000000000 --- a/stm/stmperiph/stm32f4xx_rtc.c +++ /dev/null @@ -1,2761 +0,0 @@ -/**
- ******************************************************************************
- * @file stm32f4xx_rtc.c
- * @author MCD Application Team
- * @version V1.3.0
- * @date 08-November-2013
- * @brief This file provides firmware functions to manage the following
- * functionalities of the Real-Time Clock (RTC) peripheral:
- * + Initialization
- * + Calendar (Time and Date) configuration
- * + Alarms (Alarm A and Alarm B) configuration
- * + WakeUp Timer configuration
- * + Daylight Saving configuration
- * + Output pin Configuration
- * + Coarse digital Calibration configuration
- * + Smooth digital Calibration configuration
- * + TimeStamp configuration
- * + Tampers configuration
- * + Backup Data Registers configuration
- * + Shift control synchronisation
- * + RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration
- * + Interrupts and flags management
- *
-@verbatim
-
- ===================================================================
- ##### Backup Domain Operating Condition #####
- ===================================================================
- [..] The real-time clock (RTC), the RTC backup registers, and the backup
- SRAM (BKP SRAM) can be powered from the VBAT voltage when the main
- VDD supply is powered off.
- To retain the content of the RTC backup registers, backup SRAM, and supply
- the RTC when VDD is turned off, VBAT pin can be connected to an optional
- standby voltage supplied by a battery or by another source.
-
- [..] To allow the RTC to operate even when the main digital supply (VDD) is turned
- off, the VBAT pin powers the following blocks:
- (#) The RTC
- (#) The LSE oscillator
- (#) The backup SRAM when the low power backup regulator is enabled
- (#) PC13 to PC15 I/Os, plus PI8 I/O (when available)
-
- [..] When the backup domain is supplied by VDD (analog switch connected to VDD),
- the following functions are available:
- (#) PC14 and PC15 can be used as either GPIO or LSE pins
- (#) PC13 can be used as a GPIO or as the RTC_AF1 pin
- (#) PI8 can be used as a GPIO or as the RTC_AF2 pin
-
- [..] When the backup domain is supplied by VBAT (analog switch connected to VBAT
- because VDD is not present), the following functions are available:
- (#) PC14 and PC15 can be used as LSE pins only
- (#) PC13 can be used as the RTC_AF1 pin
- (#) PI8 can be used as the RTC_AF2 pin
-
-
- ##### Backup Domain Reset #####
- ===================================================================
- [..] The backup domain reset sets all RTC registers and the RCC_BDCR register
- to their reset values. The BKPSRAM is not affected by this reset. The only
- way of resetting the BKPSRAM is through the Flash interface by requesting
- a protection level change from 1 to 0.
- [..] A backup domain reset is generated when one of the following events occurs:
- (#) Software reset, triggered by setting the BDRST bit in the
- RCC Backup domain control register (RCC_BDCR). You can use the
- RCC_BackupResetCmd().
- (#) VDD or VBAT power on, if both supplies have previously been powered off.
-
-
- ##### Backup Domain Access #####
- ===================================================================
- [..] After reset, the backup domain (RTC registers, RTC backup data
- registers and backup SRAM) is protected against possible unwanted write
- accesses.
- [..] To enable access to the RTC Domain and RTC registers, proceed as follows:
- (+) Enable the Power Controller (PWR) APB1 interface clock using the
- RCC_APB1PeriphClockCmd() function.
- (+) Enable access to RTC domain using the PWR_BackupAccessCmd() function.
- (+) Select the RTC clock source using the RCC_RTCCLKConfig() function.
- (+) Enable RTC Clock using the RCC_RTCCLKCmd() function.
-
-
- ##### How to use RTC Driver #####
- ===================================================================
- [..]
- (+) Enable the RTC domain access (see description in the section above)
- (+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour
- format using the RTC_Init() function.
-
- *** Time and Date configuration ***
- ===================================
- [..]
- (+) To configure the RTC Calendar (Time and Date) use the RTC_SetTime()
- and RTC_SetDate() functions.
- (+) To read the RTC Calendar, use the RTC_GetTime() and RTC_GetDate() functions.
- (+) Use the RTC_DayLightSavingConfig() function to add or sub one
- hour to the RTC Calendar.
-
- *** Alarm configuration ***
- ===========================
- [..]
- (+) To configure the RTC Alarm use the RTC_SetAlarm() function.
- (+) Enable the selected RTC Alarm using the RTC_AlarmCmd() function
- (+) To read the RTC Alarm, use the RTC_GetAlarm() function.
- (+) To read the RTC alarm SubSecond, use the RTC_GetAlarmSubSecond() function.
-
- *** RTC Wakeup configuration ***
- ================================
- [..]
- (+) Configure the RTC Wakeup Clock source use the RTC_WakeUpClockConfig()
- function.
- (+) Configure the RTC WakeUp Counter using the RTC_SetWakeUpCounter() function
- (+) Enable the RTC WakeUp using the RTC_WakeUpCmd() function
- (+) To read the RTC WakeUp Counter register, use the RTC_GetWakeUpCounter()
- function.
-
- *** Outputs configuration ***
- =============================
- [..] The RTC has 2 different outputs:
- (+) AFO_ALARM: this output is used to manage the RTC Alarm A, Alarm B
- and WaKeUp signals. To output the selected RTC signal on RTC_AF1 pin, use the
- RTC_OutputConfig() function.
- (+) AFO_CALIB: this output is 512Hz signal or 1Hz. To output the RTC Clock on
- RTC_AF1 pin, use the RTC_CalibOutputCmd() function.
-
- *** Smooth digital Calibration configuration ***
- ================================================
- [..]
- (+) Configure the RTC Original Digital Calibration Value and the corresponding
- calibration cycle period (32s,16s and 8s) using the RTC_SmoothCalibConfig()
- function.
-
- *** Coarse digital Calibration configuration ***
- ================================================
- [..]
- (+) Configure the RTC Coarse Calibration Value and the corresponding
- sign using the RTC_CoarseCalibConfig() function.
- (+) Enable the RTC Coarse Calibration using the RTC_CoarseCalibCmd() function
-
- *** TimeStamp configuration ***
- ===============================
- [..]
- (+) Configure the RTC_AF1 trigger and enables the RTC TimeStamp using the RTC
- _TimeStampCmd() function.
- (+) To read the RTC TimeStamp Time and Date register, use the RTC_GetTimeStamp()
- function.
- (+) To read the RTC TimeStamp SubSecond register, use the
- RTC_GetTimeStampSubSecond() function.
- (+) The TAMPER1 alternate function can be mapped either to RTC_AF1(PC13)
- or RTC_AF2 (PI8) depending on the value of TAMP1INSEL bit in
- RTC_TAFCR register. You can use the RTC_TamperPinSelection() function to
- select the corresponding pin.
-
- *** Tamper configuration ***
- ============================
- [..]
- (+) Enable the RTC Tamper using the RTC_TamperCmd() function.
- (+) Configure the Tamper filter count using RTC_TamperFilterConfig()
- function.
- (+) Configure the RTC Tamper trigger Edge or Level according to the Tamper
- filter (if equal to 0 Edge else Level) value using the RTC_TamperConfig()
- function.
- (+) Configure the Tamper sampling frequency using RTC_TamperSamplingFreqConfig()
- function.
- (+) Configure the Tamper precharge or discharge duration using
- RTC_TamperPinsPrechargeDuration() function.
- (+) Enable the Tamper Pull-UP using RTC_TamperPullUpDisableCmd() function.
- (+) Enable the Time stamp on Tamper detection event using
- TC_TSOnTamperDetecCmd() function.
- (+) The TIMESTAMP alternate function can be mapped to either RTC_AF1
- or RTC_AF2 depending on the value of the TSINSEL bit in the RTC_TAFCR
- register. You can use the RTC_TimeStampPinSelection() function to select
- the corresponding pin.
-
- *** Backup Data Registers configuration ***
- ===========================================
- [..]
- (+) To write to the RTC Backup Data registers, use the RTC_WriteBackupRegister()
- function.
- (+) To read the RTC Backup Data registers, use the RTC_ReadBackupRegister()
- function.
-
-
- ##### RTC and low power modes #####
- ===================================================================
- [..] The MCU can be woken up from a low power mode by an RTC alternate
- function.
- [..] The RTC alternate functions are the RTC alarms (Alarm A and Alarm B),
- RTC wakeup, RTC tamper event detection and RTC time stamp event detection.
- These RTC alternate functions can wake up the system from the Stop and
- Standby lowpower modes.
- [..] The system can also wake up from low power modes without depending
- on an external interrupt (Auto-wakeup mode), by using the RTC alarm
- or the RTC wakeup events.
- [..] The RTC provides a programmable time base for waking up from the
- Stop or Standby mode at regular intervals.
- Wakeup from STOP and Standby modes is possible only when the RTC clock source
- is LSE or LSI.
-
-
- ##### Selection of RTC_AF1 alternate functions #####
- ===================================================================
- [..] The RTC_AF1 pin (PC13) can be used for the following purposes:
- (+) AFO_ALARM output
- (+) AFO_CALIB output
- (+) AFI_TAMPER
- (+) AFI_TIMESTAMP
-
- [..]
- +-------------------------------------------------------------------------------------------------------------+
- | Pin |AFO_ALARM |AFO_CALIB |AFI_TAMPER |AFI_TIMESTAMP | TAMP1INSEL | TSINSEL |ALARMOUTTYPE |
- | configuration | ENABLED | ENABLED | ENABLED | ENABLED |TAMPER1 pin |TIMESTAMP pin | AFO_ALARM |
- | and function | | | | | selection | selection |Configuration |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | Alarm out | | | | | Don't | Don't | |
- | output OD | 1 |Don't care|Don't care | Don't care | care | care | 0 |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | Alarm out | | | | | Don't | Don't | |
- | output PP | 1 |Don't care|Don't care | Don't care | care | care | 1 |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | Calibration out | | | | | Don't | Don't | |
- | output PP | 0 | 1 |Don't care | Don't care | care | care | Don't care |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | TAMPER input | | | | | | Don't | |
- | floating | 0 | 0 | 1 | 0 | 0 | care | Don't care |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | TIMESTAMP and | | | | | | | |
- | TAMPER input | 0 | 0 | 1 | 1 | 0 | 0 | Don't care |
- | floating | | | | | | | |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | TIMESTAMP input | | | | | Don't | | |
- | floating | 0 | 0 | 0 | 1 | care | 0 | Don't care |
- |-----------------|----------|----------|-----------|--------------|------------|--------------|--------------|
- | Standard GPIO | 0 | 0 | 0 | 0 | Don't care | Don't care | Don't care |
- +-------------------------------------------------------------------------------------------------------------+
-
-
- ##### Selection of RTC_AF2 alternate functions #####
- ===================================================================
- [..] The RTC_AF2 pin (PI8) can be used for the following purposes:
- (+) AFI_TAMPER
- (+) AFI_TIMESTAMP
- [..]
- +---------------------------------------------------------------------------------------+
- | Pin |AFI_TAMPER |AFI_TIMESTAMP | TAMP1INSEL | TSINSEL |ALARMOUTTYPE |
- | configuration | ENABLED | ENABLED |TAMPER1 pin |TIMESTAMP pin | AFO_ALARM |
- | and function | | | selection | selection |Configuration |
- |-----------------|-----------|--------------|------------|--------------|--------------|
- | TAMPER input | | | | Don't | |
- | floating | 1 | 0 | 1 | care | Don't care |
- |-----------------|-----------|--------------|------------|--------------|--------------|
- | TIMESTAMP and | | | | | |
- | TAMPER input | 1 | 1 | 1 | 1 | Don't care |
- | floating | | | | | |
- |-----------------|-----------|--------------|------------|--------------|--------------|
- | TIMESTAMP input | | | Don't | | |
- | floating | 0 | 1 | care | 1 | Don't care |
- |-----------------|-----------|--------------|------------|--------------|--------------|
- | Standard GPIO | 0 | 0 | Don't care | Don't care | Don't care |
- +---------------------------------------------------------------------------------------+
-
-
-@endverbatim
-
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
- *
- * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
- * You may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.st.com/software_license_agreement_liberty_v2
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f4xx_rtc.h"
-
-/** @addtogroup STM32F4xx_StdPeriph_Driver
- * @{
- */
-
-/** @defgroup RTC
- * @brief RTC driver modules
- * @{
- */
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-
-/* Masks Definition */
-#define RTC_TR_RESERVED_MASK ((uint32_t)0x007F7F7F)
-#define RTC_DR_RESERVED_MASK ((uint32_t)0x00FFFF3F)
-#define RTC_INIT_MASK ((uint32_t)0xFFFFFFFF)
-#define RTC_RSF_MASK ((uint32_t)0xFFFFFF5F)
-#define RTC_FLAGS_MASK ((uint32_t)(RTC_FLAG_TSOVF | RTC_FLAG_TSF | RTC_FLAG_WUTF | \
- RTC_FLAG_ALRBF | RTC_FLAG_ALRAF | RTC_FLAG_INITF | \
- RTC_FLAG_RSF | RTC_FLAG_INITS | RTC_FLAG_WUTWF | \
- RTC_FLAG_ALRBWF | RTC_FLAG_ALRAWF | RTC_FLAG_TAMP1F | \
- RTC_FLAG_RECALPF | RTC_FLAG_SHPF))
-
-#define INITMODE_TIMEOUT ((uint32_t) 0x00010000)
-#define SYNCHRO_TIMEOUT ((uint32_t) 0x00020000)
-#define RECALPF_TIMEOUT ((uint32_t) 0x00020000)
-#define SHPF_TIMEOUT ((uint32_t) 0x00001000)
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-static uint8_t RTC_ByteToBcd2(uint8_t Value);
-static uint8_t RTC_Bcd2ToByte(uint8_t Value);
-
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup RTC_Private_Functions
- * @{
- */
-
-/** @defgroup RTC_Group1 Initialization and Configuration functions
- * @brief Initialization and Configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Initialization and Configuration functions #####
- ===============================================================================
-
- [..] This section provide functions allowing to initialize and configure the RTC
- Prescaler (Synchronous and Asynchronous), RTC Hour format, disable RTC registers
- Write protection, enter and exit the RTC initialization mode, RTC registers
- synchronization check and reference clock detection enable.
-
- (#) The RTC Prescaler is programmed to generate the RTC 1Hz time base. It is
- split into 2 programmable prescalers to minimize power consumption.
- (++) A 7-bit asynchronous prescaler and A 13-bit synchronous prescaler.
- (++) When both prescalers are used, it is recommended to configure the
- asynchronous prescaler to a high value to minimize consumption.
-
- (#) All RTC registers are Write protected. Writing to the RTC registers
- is enabled by writing a key into the Write Protection register, RTC_WPR.
-
- (#) To Configure the RTC Calendar, user application should enter initialization
- mode. In this mode, the calendar counter is stopped and its value can be
- updated. When the initialization sequence is complete, the calendar restarts
- counting after 4 RTCCLK cycles.
-
- (#) To read the calendar through the shadow registers after Calendar initialization,
- calendar update or after wakeup from low power modes the software must first
- clear the RSF flag. The software must then wait until it is set again before
- reading the calendar, which means that the calendar registers have been
- correctly copied into the RTC_TR and RTC_DR shadow registers.
- The RTC_WaitForSynchro() function implements the above software sequence
- (RSF clear and RSF check).
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Deinitializes the RTC registers to their default reset values.
- * @note This function doesn't reset the RTC Clock source and RTC Backup Data
- * registers.
- * @param None
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC registers are deinitialized
- * - ERROR: RTC registers are not deinitialized
- */
-ErrorStatus RTC_DeInit(void)
-{
- __IO uint32_t wutcounter = 0x00;
- uint32_t wutwfstatus = 0x00;
- ErrorStatus status = ERROR;
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- /* Reset TR, DR and CR registers */
- RTC->TR = (uint32_t)0x00000000;
- RTC->DR = (uint32_t)0x00002101;
- /* Reset All CR bits except CR[2:0] */
- RTC->CR &= (uint32_t)0x00000007;
-
- /* Wait till RTC WUTWF flag is set and if Time out is reached exit */
- do
- {
- wutwfstatus = RTC->ISR & RTC_ISR_WUTWF;
- wutcounter++;
- } while((wutcounter != INITMODE_TIMEOUT) && (wutwfstatus == 0x00));
-
- if ((RTC->ISR & RTC_ISR_WUTWF) == RESET)
- {
- status = ERROR;
- }
- else
- {
- /* Reset all RTC CR register bits */
- RTC->CR &= (uint32_t)0x00000000;
- RTC->WUTR = (uint32_t)0x0000FFFF;
- RTC->PRER = (uint32_t)0x007F00FF;
- RTC->CALIBR = (uint32_t)0x00000000;
- RTC->ALRMAR = (uint32_t)0x00000000;
- RTC->ALRMBR = (uint32_t)0x00000000;
- RTC->SHIFTR = (uint32_t)0x00000000;
- RTC->CALR = (uint32_t)0x00000000;
- RTC->ALRMASSR = (uint32_t)0x00000000;
- RTC->ALRMBSSR = (uint32_t)0x00000000;
-
- /* Reset ISR register and exit initialization mode */
- RTC->ISR = (uint32_t)0x00000000;
-
- /* Reset Tamper and alternate functions configuration register */
- RTC->TAFCR = 0x00000000;
-
- if(RTC_WaitForSynchro() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- }
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Initializes the RTC registers according to the specified parameters
- * in RTC_InitStruct.
- * @param RTC_InitStruct: pointer to a RTC_InitTypeDef structure that contains
- * the configuration information for the RTC peripheral.
- * @note The RTC Prescaler register is write protected and can be written in
- * initialization mode only.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC registers are initialized
- * - ERROR: RTC registers are not initialized
- */
-ErrorStatus RTC_Init(RTC_InitTypeDef* RTC_InitStruct)
-{
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_RTC_HOUR_FORMAT(RTC_InitStruct->RTC_HourFormat));
- assert_param(IS_RTC_ASYNCH_PREDIV(RTC_InitStruct->RTC_AsynchPrediv));
- assert_param(IS_RTC_SYNCH_PREDIV(RTC_InitStruct->RTC_SynchPrediv));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- /* Clear RTC CR FMT Bit */
- RTC->CR &= ((uint32_t)~(RTC_CR_FMT));
- /* Set RTC_CR register */
- RTC->CR |= ((uint32_t)(RTC_InitStruct->RTC_HourFormat));
-
- /* Configure the RTC PRER */
- RTC->PRER = (uint32_t)(RTC_InitStruct->RTC_SynchPrediv);
- RTC->PRER |= (uint32_t)(RTC_InitStruct->RTC_AsynchPrediv << 16);
-
- /* Exit Initialization mode */
- RTC_ExitInitMode();
-
- status = SUCCESS;
- }
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Fills each RTC_InitStruct member with its default value.
- * @param RTC_InitStruct: pointer to a RTC_InitTypeDef structure which will be
- * initialized.
- * @retval None
- */
-void RTC_StructInit(RTC_InitTypeDef* RTC_InitStruct)
-{
- /* Initialize the RTC_HourFormat member */
- RTC_InitStruct->RTC_HourFormat = RTC_HourFormat_24;
-
- /* Initialize the RTC_AsynchPrediv member */
- RTC_InitStruct->RTC_AsynchPrediv = (uint32_t)0x7F;
-
- /* Initialize the RTC_SynchPrediv member */
- RTC_InitStruct->RTC_SynchPrediv = (uint32_t)0xFF;
-}
-
-/**
- * @brief Enables or disables the RTC registers write protection.
- * @note All the RTC registers are write protected except for RTC_ISR[13:8],
- * RTC_TAFCR and RTC_BKPxR.
- * @note Writing a wrong key reactivates the write protection.
- * @note The protection mechanism is not affected by system reset.
- * @param NewState: new state of the write protection.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_WriteProtectionCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- if (NewState != DISABLE)
- {
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
- }
- else
- {
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
- }
-}
-
-/**
- * @brief Enters the RTC Initialization mode.
- * @note The RTC Initialization mode is write protected, use the
- * RTC_WriteProtectionCmd(DISABLE) before calling this function.
- * @param None
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC is in Init mode
- * - ERROR: RTC is not in Init mode
- */
-ErrorStatus RTC_EnterInitMode(void)
-{
- __IO uint32_t initcounter = 0x00;
- ErrorStatus status = ERROR;
- uint32_t initstatus = 0x00;
-
- /* Check if the Initialization mode is set */
- if ((RTC->ISR & RTC_ISR_INITF) == (uint32_t)RESET)
- {
- /* Set the Initialization mode */
- RTC->ISR = (uint32_t)RTC_INIT_MASK;
-
- /* Wait till RTC is in INIT state and if Time out is reached exit */
- do
- {
- initstatus = RTC->ISR & RTC_ISR_INITF;
- initcounter++;
- } while((initcounter != INITMODE_TIMEOUT) && (initstatus == 0x00));
-
- if ((RTC->ISR & RTC_ISR_INITF) != RESET)
- {
- status = SUCCESS;
- }
- else
- {
- status = ERROR;
- }
- }
- else
- {
- status = SUCCESS;
- }
-
- return (status);
-}
-
-/**
- * @brief Exits the RTC Initialization mode.
- * @note When the initialization sequence is complete, the calendar restarts
- * counting after 4 RTCCLK cycles.
- * @note The RTC Initialization mode is write protected, use the
- * RTC_WriteProtectionCmd(DISABLE) before calling this function.
- * @param None
- * @retval None
- */
-void RTC_ExitInitMode(void)
-{
- /* Exit Initialization mode */
- RTC->ISR &= (uint32_t)~RTC_ISR_INIT;
-}
-
-/**
- * @brief Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are
- * synchronized with RTC APB clock.
- * @note The RTC Resynchronization mode is write protected, use the
- * RTC_WriteProtectionCmd(DISABLE) before calling this function.
- * @note To read the calendar through the shadow registers after Calendar
- * initialization, calendar update or after wakeup from low power modes
- * the software must first clear the RSF flag.
- * The software must then wait until it is set again before reading
- * the calendar, which means that the calendar registers have been
- * correctly copied into the RTC_TR and RTC_DR shadow registers.
- * @param None
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC registers are synchronised
- * - ERROR: RTC registers are not synchronised
- */
-ErrorStatus RTC_WaitForSynchro(void)
-{
- __IO uint32_t synchrocounter = 0;
- ErrorStatus status = ERROR;
- uint32_t synchrostatus = 0x00;
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Clear RSF flag */
- RTC->ISR &= (uint32_t)RTC_RSF_MASK;
-
- /* Wait the registers to be synchronised */
- do
- {
- synchrostatus = RTC->ISR & RTC_ISR_RSF;
- synchrocounter++;
- } while((synchrocounter != SYNCHRO_TIMEOUT) && (synchrostatus == 0x00));
-
- if ((RTC->ISR & RTC_ISR_RSF) != RESET)
- {
- status = SUCCESS;
- }
- else
- {
- status = ERROR;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return (status);
-}
-
-/**
- * @brief Enables or disables the RTC reference clock detection.
- * @param NewState: new state of the RTC reference clock.
- * This parameter can be: ENABLE or DISABLE.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC reference clock detection is enabled
- * - ERROR: RTC reference clock detection is disabled
- */
-ErrorStatus RTC_RefClockCmd(FunctionalState NewState)
-{
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- if (NewState != DISABLE)
- {
- /* Enable the RTC reference clock detection */
- RTC->CR |= RTC_CR_REFCKON;
- }
- else
- {
- /* Disable the RTC reference clock detection */
- RTC->CR &= ~RTC_CR_REFCKON;
- }
- /* Exit Initialization mode */
- RTC_ExitInitMode();
-
- status = SUCCESS;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Enables or Disables the Bypass Shadow feature.
- * @note When the Bypass Shadow is enabled the calendar value are taken
- * directly from the Calendar counter.
- * @param NewState: new state of the Bypass Shadow feature.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
-*/
-void RTC_BypassShadowCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- if (NewState != DISABLE)
- {
- /* Set the BYPSHAD bit */
- RTC->CR |= (uint8_t)RTC_CR_BYPSHAD;
- }
- else
- {
- /* Reset the BYPSHAD bit */
- RTC->CR &= (uint8_t)~RTC_CR_BYPSHAD;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group2 Time and Date configuration functions
- * @brief Time and Date configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Time and Date configuration functions #####
- ===============================================================================
-
- [..] This section provide functions allowing to program and read the RTC Calendar
- (Time and Date).
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Set the RTC current time.
- * @param RTC_Format: specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure that contains
- * the time configuration information for the RTC.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Time register is configured
- * - ERROR: RTC Time register is not configured
- */
-ErrorStatus RTC_SetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct)
-{
- uint32_t tmpreg = 0;
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
-
- if (RTC_Format == RTC_Format_BIN)
- {
- if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
- {
- assert_param(IS_RTC_HOUR12(RTC_TimeStruct->RTC_Hours));
- assert_param(IS_RTC_H12(RTC_TimeStruct->RTC_H12));
- }
- else
- {
- RTC_TimeStruct->RTC_H12 = 0x00;
- assert_param(IS_RTC_HOUR24(RTC_TimeStruct->RTC_Hours));
- }
- assert_param(IS_RTC_MINUTES(RTC_TimeStruct->RTC_Minutes));
- assert_param(IS_RTC_SECONDS(RTC_TimeStruct->RTC_Seconds));
- }
- else
- {
- if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
- {
- tmpreg = RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Hours);
- assert_param(IS_RTC_HOUR12(tmpreg));
- assert_param(IS_RTC_H12(RTC_TimeStruct->RTC_H12));
- }
- else
- {
- RTC_TimeStruct->RTC_H12 = 0x00;
- assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Hours)));
- }
- assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Minutes)));
- assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Seconds)));
- }
-
- /* Check the input parameters format */
- if (RTC_Format != RTC_Format_BIN)
- {
- tmpreg = (((uint32_t)(RTC_TimeStruct->RTC_Hours) << 16) | \
- ((uint32_t)(RTC_TimeStruct->RTC_Minutes) << 8) | \
- ((uint32_t)RTC_TimeStruct->RTC_Seconds) | \
- ((uint32_t)(RTC_TimeStruct->RTC_H12) << 16));
- }
- else
- {
- tmpreg = (uint32_t)(((uint32_t)RTC_ByteToBcd2(RTC_TimeStruct->RTC_Hours) << 16) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_TimeStruct->RTC_Minutes) << 8) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_TimeStruct->RTC_Seconds)) | \
- (((uint32_t)RTC_TimeStruct->RTC_H12) << 16));
- }
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- /* Set the RTC_TR register */
- RTC->TR = (uint32_t)(tmpreg & RTC_TR_RESERVED_MASK);
-
- /* Exit Initialization mode */
- RTC_ExitInitMode();
-
- /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
- if ((RTC->CR & RTC_CR_BYPSHAD) == RESET)
- {
- if(RTC_WaitForSynchro() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- }
- else
- {
- status = SUCCESS;
- }
- }
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Fills each RTC_TimeStruct member with its default value
- * (Time = 00h:00min:00sec).
- * @param RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure which will be
- * initialized.
- * @retval None
- */
-void RTC_TimeStructInit(RTC_TimeTypeDef* RTC_TimeStruct)
-{
- /* Time = 00h:00min:00sec */
- RTC_TimeStruct->RTC_H12 = RTC_H12_AM;
- RTC_TimeStruct->RTC_Hours = 0;
- RTC_TimeStruct->RTC_Minutes = 0;
- RTC_TimeStruct->RTC_Seconds = 0;
-}
-
-/**
- * @brief Get the RTC current Time.
- * @param RTC_Format: specifies the format of the returned parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure that will
- * contain the returned current time configuration.
- * @retval None
- */
-void RTC_GetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
-
- /* Get the RTC_TR register */
- tmpreg = (uint32_t)(RTC->TR & RTC_TR_RESERVED_MASK);
-
- /* Fill the structure fields with the read parameters */
- RTC_TimeStruct->RTC_Hours = (uint8_t)((tmpreg & (RTC_TR_HT | RTC_TR_HU)) >> 16);
- RTC_TimeStruct->RTC_Minutes = (uint8_t)((tmpreg & (RTC_TR_MNT | RTC_TR_MNU)) >>8);
- RTC_TimeStruct->RTC_Seconds = (uint8_t)(tmpreg & (RTC_TR_ST | RTC_TR_SU));
- RTC_TimeStruct->RTC_H12 = (uint8_t)((tmpreg & (RTC_TR_PM)) >> 16);
-
- /* Check the input parameters format */
- if (RTC_Format == RTC_Format_BIN)
- {
- /* Convert the structure parameters to Binary format */
- RTC_TimeStruct->RTC_Hours = (uint8_t)RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Hours);
- RTC_TimeStruct->RTC_Minutes = (uint8_t)RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Minutes);
- RTC_TimeStruct->RTC_Seconds = (uint8_t)RTC_Bcd2ToByte(RTC_TimeStruct->RTC_Seconds);
- }
-}
-
-/**
- * @brief Gets the RTC current Calendar Sub seconds value.
- * @note This function freeze the Time and Date registers after reading the
- * SSR register.
- * @param None
- * @retval RTC current Calendar Sub seconds value.
- */
-uint32_t RTC_GetSubSecond(void)
-{
- uint32_t tmpreg = 0;
-
- /* Get sub seconds values from the correspondent registers*/
- tmpreg = (uint32_t)(RTC->SSR);
-
- /* Read DR register to unfroze calendar registers */
- (void) (RTC->DR);
-
- return (tmpreg);
-}
-
-/**
- * @brief Set the RTC current date.
- * @param RTC_Format: specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure that contains
- * the date configuration information for the RTC.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Date register is configured
- * - ERROR: RTC Date register is not configured
- */
-ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct)
-{
- uint32_t tmpreg = 0;
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
-
- if ((RTC_Format == RTC_Format_BIN) && ((RTC_DateStruct->RTC_Month & 0x10) == 0x10))
- {
- RTC_DateStruct->RTC_Month = (RTC_DateStruct->RTC_Month & (uint32_t)~(0x10)) + 0x0A;
- }
- if (RTC_Format == RTC_Format_BIN)
- {
- assert_param(IS_RTC_YEAR(RTC_DateStruct->RTC_Year));
- assert_param(IS_RTC_MONTH(RTC_DateStruct->RTC_Month));
- assert_param(IS_RTC_DATE(RTC_DateStruct->RTC_Date));
- }
- else
- {
- assert_param(IS_RTC_YEAR(RTC_Bcd2ToByte(RTC_DateStruct->RTC_Year)));
- tmpreg = RTC_Bcd2ToByte(RTC_DateStruct->RTC_Month);
- assert_param(IS_RTC_MONTH(tmpreg));
- tmpreg = RTC_Bcd2ToByte(RTC_DateStruct->RTC_Date);
- assert_param(IS_RTC_DATE(tmpreg));
- }
- assert_param(IS_RTC_WEEKDAY(RTC_DateStruct->RTC_WeekDay));
-
- /* Check the input parameters format */
- if (RTC_Format != RTC_Format_BIN)
- {
- tmpreg = ((((uint32_t)RTC_DateStruct->RTC_Year) << 16) | \
- (((uint32_t)RTC_DateStruct->RTC_Month) << 8) | \
- ((uint32_t)RTC_DateStruct->RTC_Date) | \
- (((uint32_t)RTC_DateStruct->RTC_WeekDay) << 13));
- }
- else
- {
- tmpreg = (((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Year) << 16) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Month) << 8) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Date)) | \
- ((uint32_t)RTC_DateStruct->RTC_WeekDay << 13));
- }
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- /* Set the RTC_DR register */
- RTC->DR = (uint32_t)(tmpreg & RTC_DR_RESERVED_MASK);
-
- /* Exit Initialization mode */
- RTC_ExitInitMode();
-
- /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
- if ((RTC->CR & RTC_CR_BYPSHAD) == RESET)
- {
- if(RTC_WaitForSynchro() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- }
- else
- {
- status = SUCCESS;
- }
- }
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Fills each RTC_DateStruct member with its default value
- * (Monday, January 01 xx00).
- * @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure which will be
- * initialized.
- * @retval None
- */
-void RTC_DateStructInit(RTC_DateTypeDef* RTC_DateStruct)
-{
- /* Monday, January 01 xx00 */
- RTC_DateStruct->RTC_WeekDay = RTC_Weekday_Monday;
- RTC_DateStruct->RTC_Date = 1;
- RTC_DateStruct->RTC_Month = RTC_Month_January;
- RTC_DateStruct->RTC_Year = 0;
-}
-
-/**
- * @brief Get the RTC current date.
- * @param RTC_Format: specifies the format of the returned parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure that will
- * contain the returned current date configuration.
- * @retval None
- */
-void RTC_GetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
-
- /* Get the RTC_TR register */
- tmpreg = (uint32_t)(RTC->DR & RTC_DR_RESERVED_MASK);
-
- /* Fill the structure fields with the read parameters */
- RTC_DateStruct->RTC_Year = (uint8_t)((tmpreg & (RTC_DR_YT | RTC_DR_YU)) >> 16);
- RTC_DateStruct->RTC_Month = (uint8_t)((tmpreg & (RTC_DR_MT | RTC_DR_MU)) >> 8);
- RTC_DateStruct->RTC_Date = (uint8_t)(tmpreg & (RTC_DR_DT | RTC_DR_DU));
- RTC_DateStruct->RTC_WeekDay = (uint8_t)((tmpreg & (RTC_DR_WDU)) >> 13);
-
- /* Check the input parameters format */
- if (RTC_Format == RTC_Format_BIN)
- {
- /* Convert the structure parameters to Binary format */
- RTC_DateStruct->RTC_Year = (uint8_t)RTC_Bcd2ToByte(RTC_DateStruct->RTC_Year);
- RTC_DateStruct->RTC_Month = (uint8_t)RTC_Bcd2ToByte(RTC_DateStruct->RTC_Month);
- RTC_DateStruct->RTC_Date = (uint8_t)RTC_Bcd2ToByte(RTC_DateStruct->RTC_Date);
- }
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group3 Alarms configuration functions
- * @brief Alarms (Alarm A and Alarm B) configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Alarms A and B configuration functions #####
- ===============================================================================
-
- [..] This section provide functions allowing to program and read the RTC Alarms.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Set the specified RTC Alarm.
- * @note The Alarm register can only be written when the corresponding Alarm
- * is disabled (Use the RTC_AlarmCmd(DISABLE)).
- * @param RTC_Format: specifies the format of the returned parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_Alarm: specifies the alarm to be configured.
- * This parameter can be one of the following values:
- * @arg RTC_Alarm_A: to select Alarm A
- * @arg RTC_Alarm_B: to select Alarm B
- * @param RTC_AlarmStruct: pointer to a RTC_AlarmTypeDef structure that
- * contains the alarm configuration parameters.
- * @retval None
- */
-void RTC_SetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
- assert_param(IS_RTC_ALARM(RTC_Alarm));
- assert_param(IS_ALARM_MASK(RTC_AlarmStruct->RTC_AlarmMask));
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(RTC_AlarmStruct->RTC_AlarmDateWeekDaySel));
-
- if (RTC_Format == RTC_Format_BIN)
- {
- if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
- {
- assert_param(IS_RTC_HOUR12(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours));
- assert_param(IS_RTC_H12(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12));
- }
- else
- {
- RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = 0x00;
- assert_param(IS_RTC_HOUR24(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours));
- }
- assert_param(IS_RTC_MINUTES(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes));
- assert_param(IS_RTC_SECONDS(RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds));
-
- if(RTC_AlarmStruct->RTC_AlarmDateWeekDaySel == RTC_AlarmDateWeekDaySel_Date)
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(RTC_AlarmStruct->RTC_AlarmDateWeekDay));
- }
- else
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(RTC_AlarmStruct->RTC_AlarmDateWeekDay));
- }
- }
- else
- {
- if ((RTC->CR & RTC_CR_FMT) != (uint32_t)RESET)
- {
- tmpreg = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours);
- assert_param(IS_RTC_HOUR12(tmpreg));
- assert_param(IS_RTC_H12(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12));
- }
- else
- {
- RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = 0x00;
- assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours)));
- }
-
- assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes)));
- assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds)));
-
- if(RTC_AlarmStruct->RTC_AlarmDateWeekDaySel == RTC_AlarmDateWeekDaySel_Date)
- {
- tmpreg = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmDateWeekDay);
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(tmpreg));
- }
- else
- {
- tmpreg = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmDateWeekDay);
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(tmpreg));
- }
- }
-
- /* Check the input parameters format */
- if (RTC_Format != RTC_Format_BIN)
- {
- tmpreg = (((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours) << 16) | \
- ((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes) << 8) | \
- ((uint32_t)RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds) | \
- ((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12) << 16) | \
- ((uint32_t)(RTC_AlarmStruct->RTC_AlarmDateWeekDay) << 24) | \
- ((uint32_t)RTC_AlarmStruct->RTC_AlarmDateWeekDaySel) | \
- ((uint32_t)RTC_AlarmStruct->RTC_AlarmMask));
- }
- else
- {
- tmpreg = (((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours) << 16) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes) << 8) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds)) | \
- ((uint32_t)(RTC_AlarmStruct->RTC_AlarmTime.RTC_H12) << 16) | \
- ((uint32_t)RTC_ByteToBcd2(RTC_AlarmStruct->RTC_AlarmDateWeekDay) << 24) | \
- ((uint32_t)RTC_AlarmStruct->RTC_AlarmDateWeekDaySel) | \
- ((uint32_t)RTC_AlarmStruct->RTC_AlarmMask));
- }
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Configure the Alarm register */
- if (RTC_Alarm == RTC_Alarm_A)
- {
- RTC->ALRMAR = (uint32_t)tmpreg;
- }
- else
- {
- RTC->ALRMBR = (uint32_t)tmpreg;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Fills each RTC_AlarmStruct member with its default value
- * (Time = 00h:00mn:00sec / Date = 1st day of the month/Mask =
- * all fields are masked).
- * @param RTC_AlarmStruct: pointer to a @ref RTC_AlarmTypeDef structure which
- * will be initialized.
- * @retval None
- */
-void RTC_AlarmStructInit(RTC_AlarmTypeDef* RTC_AlarmStruct)
-{
- /* Alarm Time Settings : Time = 00h:00mn:00sec */
- RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = RTC_H12_AM;
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours = 0;
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes = 0;
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds = 0;
-
- /* Alarm Date Settings : Date = 1st day of the month */
- RTC_AlarmStruct->RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
- RTC_AlarmStruct->RTC_AlarmDateWeekDay = 1;
-
- /* Alarm Masks Settings : Mask = all fields are not masked */
- RTC_AlarmStruct->RTC_AlarmMask = RTC_AlarmMask_None;
-}
-
-/**
- * @brief Get the RTC Alarm value and masks.
- * @param RTC_Format: specifies the format of the output parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_Alarm: specifies the alarm to be read.
- * This parameter can be one of the following values:
- * @arg RTC_Alarm_A: to select Alarm A
- * @arg RTC_Alarm_B: to select Alarm B
- * @param RTC_AlarmStruct: pointer to a RTC_AlarmTypeDef structure that will
- * contains the output alarm configuration values.
- * @retval None
- */
-void RTC_GetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
- assert_param(IS_RTC_ALARM(RTC_Alarm));
-
- /* Get the RTC_ALRMxR register */
- if (RTC_Alarm == RTC_Alarm_A)
- {
- tmpreg = (uint32_t)(RTC->ALRMAR);
- }
- else
- {
- tmpreg = (uint32_t)(RTC->ALRMBR);
- }
-
- /* Fill the structure with the read parameters */
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours = (uint32_t)((tmpreg & (RTC_ALRMAR_HT | \
- RTC_ALRMAR_HU)) >> 16);
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes = (uint32_t)((tmpreg & (RTC_ALRMAR_MNT | \
- RTC_ALRMAR_MNU)) >> 8);
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds = (uint32_t)(tmpreg & (RTC_ALRMAR_ST | \
- RTC_ALRMAR_SU));
- RTC_AlarmStruct->RTC_AlarmTime.RTC_H12 = (uint32_t)((tmpreg & RTC_ALRMAR_PM) >> 16);
- RTC_AlarmStruct->RTC_AlarmDateWeekDay = (uint32_t)((tmpreg & (RTC_ALRMAR_DT | RTC_ALRMAR_DU)) >> 24);
- RTC_AlarmStruct->RTC_AlarmDateWeekDaySel = (uint32_t)(tmpreg & RTC_ALRMAR_WDSEL);
- RTC_AlarmStruct->RTC_AlarmMask = (uint32_t)(tmpreg & RTC_AlarmMask_All);
-
- if (RTC_Format == RTC_Format_BIN)
- {
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Hours = RTC_Bcd2ToByte(RTC_AlarmStruct-> \
- RTC_AlarmTime.RTC_Hours);
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Minutes = RTC_Bcd2ToByte(RTC_AlarmStruct-> \
- RTC_AlarmTime.RTC_Minutes);
- RTC_AlarmStruct->RTC_AlarmTime.RTC_Seconds = RTC_Bcd2ToByte(RTC_AlarmStruct-> \
- RTC_AlarmTime.RTC_Seconds);
- RTC_AlarmStruct->RTC_AlarmDateWeekDay = RTC_Bcd2ToByte(RTC_AlarmStruct->RTC_AlarmDateWeekDay);
- }
-}
-
-/**
- * @brief Enables or disables the specified RTC Alarm.
- * @param RTC_Alarm: specifies the alarm to be configured.
- * This parameter can be any combination of the following values:
- * @arg RTC_Alarm_A: to select Alarm A
- * @arg RTC_Alarm_B: to select Alarm B
- * @param NewState: new state of the specified alarm.
- * This parameter can be: ENABLE or DISABLE.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Alarm is enabled/disabled
- * - ERROR: RTC Alarm is not enabled/disabled
- */
-ErrorStatus RTC_AlarmCmd(uint32_t RTC_Alarm, FunctionalState NewState)
-{
- __IO uint32_t alarmcounter = 0x00;
- uint32_t alarmstatus = 0x00;
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_RTC_CMD_ALARM(RTC_Alarm));
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Configure the Alarm state */
- if (NewState != DISABLE)
- {
- RTC->CR |= (uint32_t)RTC_Alarm;
-
- status = SUCCESS;
- }
- else
- {
- /* Disable the Alarm in RTC_CR register */
- RTC->CR &= (uint32_t)~RTC_Alarm;
-
- /* Wait till RTC ALRxWF flag is set and if Time out is reached exit */
- do
- {
- alarmstatus = RTC->ISR & (RTC_Alarm >> 8);
- alarmcounter++;
- } while((alarmcounter != INITMODE_TIMEOUT) && (alarmstatus == 0x00));
-
- if ((RTC->ISR & (RTC_Alarm >> 8)) == RESET)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Configure the RTC AlarmA/B Sub seconds value and mask.*
- * @note This function is performed only when the Alarm is disabled.
- * @param RTC_Alarm: specifies the alarm to be configured.
- * This parameter can be one of the following values:
- * @arg RTC_Alarm_A: to select Alarm A
- * @arg RTC_Alarm_B: to select Alarm B
- * @param RTC_AlarmSubSecondValue: specifies the Sub seconds value.
- * This parameter can be a value from 0 to 0x00007FFF.
- * @param RTC_AlarmSubSecondMask: specifies the Sub seconds Mask.
- * This parameter can be any combination of the following values:
- * @arg RTC_AlarmSubSecondMask_All : All Alarm SS fields are masked.
- * There is no comparison on sub seconds for Alarm.
- * @arg RTC_AlarmSubSecondMask_SS14_1 : SS[14:1] are don't care in Alarm comparison.
- * Only SS[0] is compared
- * @arg RTC_AlarmSubSecondMask_SS14_2 : SS[14:2] are don't care in Alarm comparison.
- * Only SS[1:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_3 : SS[14:3] are don't care in Alarm comparison.
- * Only SS[2:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_4 : SS[14:4] are don't care in Alarm comparison.
- * Only SS[3:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_5 : SS[14:5] are don't care in Alarm comparison.
- * Only SS[4:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_6 : SS[14:6] are don't care in Alarm comparison.
- * Only SS[5:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_7 : SS[14:7] are don't care in Alarm comparison.
- * Only SS[6:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_8 : SS[14:8] are don't care in Alarm comparison.
- * Only SS[7:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_9 : SS[14:9] are don't care in Alarm comparison.
- * Only SS[8:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_10: SS[14:10] are don't care in Alarm comparison.
- * Only SS[9:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_11: SS[14:11] are don't care in Alarm comparison.
- * Only SS[10:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_12: SS[14:12] are don't care in Alarm comparison.
- * Only SS[11:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14_13: SS[14:13] are don't care in Alarm comparison.
- * Only SS[12:0] are compared
- * @arg RTC_AlarmSubSecondMask_SS14 : SS[14] is don't care in Alarm comparison.
- * Only SS[13:0] are compared
- * @arg RTC_AlarmSubSecondMask_None : SS[14:0] are compared and must match
- * to activate alarm
- * @retval None
- */
-void RTC_AlarmSubSecondConfig(uint32_t RTC_Alarm, uint32_t RTC_AlarmSubSecondValue, uint32_t RTC_AlarmSubSecondMask)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_ALARM(RTC_Alarm));
- assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(RTC_AlarmSubSecondValue));
- assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(RTC_AlarmSubSecondMask));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Configure the Alarm A or Alarm B Sub Second registers */
- tmpreg = (uint32_t) (uint32_t)(RTC_AlarmSubSecondValue) | (uint32_t)(RTC_AlarmSubSecondMask);
-
- if (RTC_Alarm == RTC_Alarm_A)
- {
- /* Configure the Alarm A Sub Second register */
- RTC->ALRMASSR = tmpreg;
- }
- else
- {
- /* Configure the Alarm B Sub Second register */
- RTC->ALRMBSSR = tmpreg;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
-}
-
-/**
- * @brief Gets the RTC Alarm Sub seconds value.
- * @param RTC_Alarm: specifies the alarm to be read.
- * This parameter can be one of the following values:
- * @arg RTC_Alarm_A: to select Alarm A
- * @arg RTC_Alarm_B: to select Alarm B
- * @param None
- * @retval RTC Alarm Sub seconds value.
- */
-uint32_t RTC_GetAlarmSubSecond(uint32_t RTC_Alarm)
-{
- uint32_t tmpreg = 0;
-
- /* Get the RTC_ALRMxR register */
- if (RTC_Alarm == RTC_Alarm_A)
- {
- tmpreg = (uint32_t)((RTC->ALRMASSR) & RTC_ALRMASSR_SS);
- }
- else
- {
- tmpreg = (uint32_t)((RTC->ALRMBSSR) & RTC_ALRMBSSR_SS);
- }
-
- return (tmpreg);
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group4 WakeUp Timer configuration functions
- * @brief WakeUp Timer configuration functions
- *
-@verbatim
- ===============================================================================
- ##### WakeUp Timer configuration functions #####
- ===============================================================================
-
- [..] This section provide functions allowing to program and read the RTC WakeUp.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the RTC Wakeup clock source.
- * @note The WakeUp Clock source can only be changed when the RTC WakeUp
- * is disabled (Use the RTC_WakeUpCmd(DISABLE)).
- * @param RTC_WakeUpClock: Wakeup Clock source.
- * This parameter can be one of the following values:
- * @arg RTC_WakeUpClock_RTCCLK_Div16: RTC Wakeup Counter Clock = RTCCLK/16
- * @arg RTC_WakeUpClock_RTCCLK_Div8: RTC Wakeup Counter Clock = RTCCLK/8
- * @arg RTC_WakeUpClock_RTCCLK_Div4: RTC Wakeup Counter Clock = RTCCLK/4
- * @arg RTC_WakeUpClock_RTCCLK_Div2: RTC Wakeup Counter Clock = RTCCLK/2
- * @arg RTC_WakeUpClock_CK_SPRE_16bits: RTC Wakeup Counter Clock = CK_SPRE
- * @arg RTC_WakeUpClock_CK_SPRE_17bits: RTC Wakeup Counter Clock = CK_SPRE
- * @retval None
- */
-void RTC_WakeUpClockConfig(uint32_t RTC_WakeUpClock)
-{
- /* Check the parameters */
- assert_param(IS_RTC_WAKEUP_CLOCK(RTC_WakeUpClock));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Clear the Wakeup Timer clock source bits in CR register */
- RTC->CR &= (uint32_t)~RTC_CR_WUCKSEL;
-
- /* Configure the clock source */
- RTC->CR |= (uint32_t)RTC_WakeUpClock;
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Configures the RTC Wakeup counter.
- * @note The RTC WakeUp counter can only be written when the RTC WakeUp
- * is disabled (Use the RTC_WakeUpCmd(DISABLE)).
- * @param RTC_WakeUpCounter: specifies the WakeUp counter.
- * This parameter can be a value from 0x0000 to 0xFFFF.
- * @retval None
- */
-void RTC_SetWakeUpCounter(uint32_t RTC_WakeUpCounter)
-{
- /* Check the parameters */
- assert_param(IS_RTC_WAKEUP_COUNTER(RTC_WakeUpCounter));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Configure the Wakeup Timer counter */
- RTC->WUTR = (uint32_t)RTC_WakeUpCounter;
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Returns the RTC WakeUp timer counter value.
- * @param None
- * @retval The RTC WakeUp Counter value.
- */
-uint32_t RTC_GetWakeUpCounter(void)
-{
- /* Get the counter value */
- return ((uint32_t)(RTC->WUTR & RTC_WUTR_WUT));
-}
-
-/**
- * @brief Enables or Disables the RTC WakeUp timer.
- * @param NewState: new state of the WakeUp timer.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-ErrorStatus RTC_WakeUpCmd(FunctionalState NewState)
-{
- __IO uint32_t wutcounter = 0x00;
- uint32_t wutwfstatus = 0x00;
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- if (NewState != DISABLE)
- {
- /* Enable the Wakeup Timer */
- RTC->CR |= (uint32_t)RTC_CR_WUTE;
- status = SUCCESS;
- }
- else
- {
- /* Disable the Wakeup Timer */
- RTC->CR &= (uint32_t)~RTC_CR_WUTE;
- /* Wait till RTC WUTWF flag is set and if Time out is reached exit */
- do
- {
- wutwfstatus = RTC->ISR & RTC_ISR_WUTWF;
- wutcounter++;
- } while((wutcounter != INITMODE_TIMEOUT) && (wutwfstatus == 0x00));
-
- if ((RTC->ISR & RTC_ISR_WUTWF) == RESET)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group5 Daylight Saving configuration functions
- * @brief Daylight Saving configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Daylight Saving configuration functions #####
- ===============================================================================
-
- [..] This section provide functions allowing to configure the RTC DayLight Saving.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Adds or substract one hour from the current time.
- * @param RTC_DayLightSaveOperation: the value of hour adjustment.
- * This parameter can be one of the following values:
- * @arg RTC_DayLightSaving_SUB1H: Substract one hour (winter time)
- * @arg RTC_DayLightSaving_ADD1H: Add one hour (summer time)
- * @param RTC_StoreOperation: Specifies the value to be written in the BCK bit
- * in CR register to store the operation.
- * This parameter can be one of the following values:
- * @arg RTC_StoreOperation_Reset: BCK Bit Reset
- * @arg RTC_StoreOperation_Set: BCK Bit Set
- * @retval None
- */
-void RTC_DayLightSavingConfig(uint32_t RTC_DayLightSaving, uint32_t RTC_StoreOperation)
-{
- /* Check the parameters */
- assert_param(IS_RTC_DAYLIGHT_SAVING(RTC_DayLightSaving));
- assert_param(IS_RTC_STORE_OPERATION(RTC_StoreOperation));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Clear the bits to be configured */
- RTC->CR &= (uint32_t)~(RTC_CR_BCK);
-
- /* Configure the RTC_CR register */
- RTC->CR |= (uint32_t)(RTC_DayLightSaving | RTC_StoreOperation);
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Returns the RTC Day Light Saving stored operation.
- * @param None
- * @retval RTC Day Light Saving stored operation.
- * - RTC_StoreOperation_Reset
- * - RTC_StoreOperation_Set
- */
-uint32_t RTC_GetStoreOperation(void)
-{
- return (RTC->CR & RTC_CR_BCK);
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group6 Output pin Configuration function
- * @brief Output pin Configuration function
- *
-@verbatim
- ===============================================================================
- ##### Output pin Configuration function #####
- ===============================================================================
-
- [..] This section provide functions allowing to configure the RTC Output source.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the RTC output source (AFO_ALARM).
- * @param RTC_Output: Specifies which signal will be routed to the RTC output.
- * This parameter can be one of the following values:
- * @arg RTC_Output_Disable: No output selected
- * @arg RTC_Output_AlarmA: signal of AlarmA mapped to output
- * @arg RTC_Output_AlarmB: signal of AlarmB mapped to output
- * @arg RTC_Output_WakeUp: signal of WakeUp mapped to output
- * @param RTC_OutputPolarity: Specifies the polarity of the output signal.
- * This parameter can be one of the following:
- * @arg RTC_OutputPolarity_High: The output pin is high when the
- * ALRAF/ALRBF/WUTF is high (depending on OSEL)
- * @arg RTC_OutputPolarity_Low: The output pin is low when the
- * ALRAF/ALRBF/WUTF is high (depending on OSEL)
- * @retval None
- */
-void RTC_OutputConfig(uint32_t RTC_Output, uint32_t RTC_OutputPolarity)
-{
- /* Check the parameters */
- assert_param(IS_RTC_OUTPUT(RTC_Output));
- assert_param(IS_RTC_OUTPUT_POL(RTC_OutputPolarity));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Clear the bits to be configured */
- RTC->CR &= (uint32_t)~(RTC_CR_OSEL | RTC_CR_POL);
-
- /* Configure the output selection and polarity */
- RTC->CR |= (uint32_t)(RTC_Output | RTC_OutputPolarity);
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group7 Digital Calibration configuration functions
- * @brief Coarse Calibration configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Digital Calibration configuration functions #####
- ===============================================================================
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the Coarse calibration parameters.
- * @param RTC_CalibSign: specifies the sign of the coarse calibration value.
- * This parameter can be one of the following values:
- * @arg RTC_CalibSign_Positive: The value sign is positive
- * @arg RTC_CalibSign_Negative: The value sign is negative
- * @param Value: value of coarse calibration expressed in ppm (coded on 5 bits).
- *
- * @note This Calibration value should be between 0 and 63 when using negative
- * sign with a 2-ppm step.
- *
- * @note This Calibration value should be between 0 and 126 when using positive
- * sign with a 4-ppm step.
- *
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Coarse calibration are initialized
- * - ERROR: RTC Coarse calibration are not initialized
- */
-ErrorStatus RTC_CoarseCalibConfig(uint32_t RTC_CalibSign, uint32_t Value)
-{
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_RTC_CALIB_SIGN(RTC_CalibSign));
- assert_param(IS_RTC_CALIB_VALUE(Value));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- /* Set the coarse calibration value */
- RTC->CALIBR = (uint32_t)(RTC_CalibSign | Value);
- /* Exit Initialization mode */
- RTC_ExitInitMode();
-
- status = SUCCESS;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Enables or disables the Coarse calibration process.
- * @param NewState: new state of the Coarse calibration.
- * This parameter can be: ENABLE or DISABLE.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Coarse calibration are enabled/disabled
- * - ERROR: RTC Coarse calibration are not enabled/disabled
- */
-ErrorStatus RTC_CoarseCalibCmd(FunctionalState NewState)
-{
- ErrorStatus status = ERROR;
-
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Set Initialization mode */
- if (RTC_EnterInitMode() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- if (NewState != DISABLE)
- {
- /* Enable the Coarse Calibration */
- RTC->CR |= (uint32_t)RTC_CR_DCE;
- }
- else
- {
- /* Disable the Coarse Calibration */
- RTC->CR &= (uint32_t)~RTC_CR_DCE;
- }
- /* Exit Initialization mode */
- RTC_ExitInitMode();
-
- status = SUCCESS;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return status;
-}
-
-/**
- * @brief Enables or disables the RTC clock to be output through the relative pin.
- * @param NewState: new state of the digital calibration Output.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_CalibOutputCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- if (NewState != DISABLE)
- {
- /* Enable the RTC clock output */
- RTC->CR |= (uint32_t)RTC_CR_COE;
- }
- else
- {
- /* Disable the RTC clock output */
- RTC->CR &= (uint32_t)~RTC_CR_COE;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
- * @param RTC_CalibOutput : Select the Calibration output Selection .
- * This parameter can be one of the following values:
- * @arg RTC_CalibOutput_512Hz: A signal has a regular waveform at 512Hz.
- * @arg RTC_CalibOutput_1Hz : A signal has a regular waveform at 1Hz.
- * @retval None
-*/
-void RTC_CalibOutputConfig(uint32_t RTC_CalibOutput)
-{
- /* Check the parameters */
- assert_param(IS_RTC_CALIB_OUTPUT(RTC_CalibOutput));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /*clear flags before configuration */
- RTC->CR &= (uint32_t)~(RTC_CR_COSEL);
-
- /* Configure the RTC_CR register */
- RTC->CR |= (uint32_t)RTC_CalibOutput;
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Configures the Smooth Calibration Settings.
- * @param RTC_SmoothCalibPeriod : Select the Smooth Calibration Period.
- * This parameter can be can be one of the following values:
- * @arg RTC_SmoothCalibPeriod_32sec : The smooth calibration period is 32s.
- * @arg RTC_SmoothCalibPeriod_16sec : The smooth calibration period is 16s.
- * @arg RTC_SmoothCalibPeriod_8sec : The smooth calibartion period is 8s.
- * @param RTC_SmoothCalibPlusPulses : Select to Set or reset the CALP bit.
- * This parameter can be one of the following values:
- * @arg RTC_SmoothCalibPlusPulses_Set : Add one RTCCLK puls every 2**11 pulses.
- * @arg RTC_SmoothCalibPlusPulses_Reset: No RTCCLK pulses are added.
- * @param RTC_SmouthCalibMinusPulsesValue: Select the value of CALM[8:0] bits.
- * This parameter can be one any value from 0 to 0x000001FF.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Calib registers are configured
- * - ERROR: RTC Calib registers are not configured
-*/
-ErrorStatus RTC_SmoothCalibConfig(uint32_t RTC_SmoothCalibPeriod,
- uint32_t RTC_SmoothCalibPlusPulses,
- uint32_t RTC_SmouthCalibMinusPulsesValue)
-{
- ErrorStatus status = ERROR;
- uint32_t recalpfcount = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_SMOOTH_CALIB_PERIOD(RTC_SmoothCalibPeriod));
- assert_param(IS_RTC_SMOOTH_CALIB_PLUS(RTC_SmoothCalibPlusPulses));
- assert_param(IS_RTC_SMOOTH_CALIB_MINUS(RTC_SmouthCalibMinusPulsesValue));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* check if a calibration is pending*/
- if ((RTC->ISR & RTC_ISR_RECALPF) != RESET)
- {
- /* wait until the Calibration is completed*/
- while (((RTC->ISR & RTC_ISR_RECALPF) != RESET) && (recalpfcount != RECALPF_TIMEOUT))
- {
- recalpfcount++;
- }
- }
-
- /* check if the calibration pending is completed or if there is no calibration operation at all*/
- if ((RTC->ISR & RTC_ISR_RECALPF) == RESET)
- {
- /* Configure the Smooth calibration settings */
- RTC->CALR = (uint32_t)((uint32_t)RTC_SmoothCalibPeriod | (uint32_t)RTC_SmoothCalibPlusPulses | (uint32_t)RTC_SmouthCalibMinusPulsesValue);
-
- status = SUCCESS;
- }
- else
- {
- status = ERROR;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return (ErrorStatus)(status);
-}
-
-/**
- * @}
- */
-
-
-/** @defgroup RTC_Group8 TimeStamp configuration functions
- * @brief TimeStamp configuration functions
- *
-@verbatim
- ===============================================================================
- ##### TimeStamp configuration functions #####
- ===============================================================================
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Enables or Disables the RTC TimeStamp functionality with the
- * specified time stamp pin stimulating edge.
- * @param RTC_TimeStampEdge: Specifies the pin edge on which the TimeStamp is
- * activated.
- * This parameter can be one of the following:
- * @arg RTC_TimeStampEdge_Rising: the Time stamp event occurs on the rising
- * edge of the related pin.
- * @arg RTC_TimeStampEdge_Falling: the Time stamp event occurs on the
- * falling edge of the related pin.
- * @param NewState: new state of the TimeStamp.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_TimeStampCmd(uint32_t RTC_TimeStampEdge, FunctionalState NewState)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_TIMESTAMP_EDGE(RTC_TimeStampEdge));
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Get the RTC_CR register and clear the bits to be configured */
- tmpreg = (uint32_t)(RTC->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
-
- /* Get the new configuration */
- if (NewState != DISABLE)
- {
- tmpreg |= (uint32_t)(RTC_TimeStampEdge | RTC_CR_TSE);
- }
- else
- {
- tmpreg |= (uint32_t)(RTC_TimeStampEdge);
- }
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Configure the Time Stamp TSEDGE and Enable bits */
- RTC->CR = (uint32_t)tmpreg;
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Get the RTC TimeStamp value and masks.
- * @param RTC_Format: specifies the format of the output parameters.
- * This parameter can be one of the following values:
- * @arg RTC_Format_BIN: Binary data format
- * @arg RTC_Format_BCD: BCD data format
- * @param RTC_StampTimeStruct: pointer to a RTC_TimeTypeDef structure that will
- * contains the TimeStamp time values.
- * @param RTC_StampDateStruct: pointer to a RTC_DateTypeDef structure that will
- * contains the TimeStamp date values.
- * @retval None
- */
-void RTC_GetTimeStamp(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_StampTimeStruct,
- RTC_DateTypeDef* RTC_StampDateStruct)
-{
- uint32_t tmptime = 0, tmpdate = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(RTC_Format));
-
- /* Get the TimeStamp time and date registers values */
- tmptime = (uint32_t)(RTC->TSTR & RTC_TR_RESERVED_MASK);
- tmpdate = (uint32_t)(RTC->TSDR & RTC_DR_RESERVED_MASK);
-
- /* Fill the Time structure fields with the read parameters */
- RTC_StampTimeStruct->RTC_Hours = (uint8_t)((tmptime & (RTC_TR_HT | RTC_TR_HU)) >> 16);
- RTC_StampTimeStruct->RTC_Minutes = (uint8_t)((tmptime & (RTC_TR_MNT | RTC_TR_MNU)) >> 8);
- RTC_StampTimeStruct->RTC_Seconds = (uint8_t)(tmptime & (RTC_TR_ST | RTC_TR_SU));
- RTC_StampTimeStruct->RTC_H12 = (uint8_t)((tmptime & (RTC_TR_PM)) >> 16);
-
- /* Fill the Date structure fields with the read parameters */
- RTC_StampDateStruct->RTC_Year = 0;
- RTC_StampDateStruct->RTC_Month = (uint8_t)((tmpdate & (RTC_DR_MT | RTC_DR_MU)) >> 8);
- RTC_StampDateStruct->RTC_Date = (uint8_t)(tmpdate & (RTC_DR_DT | RTC_DR_DU));
- RTC_StampDateStruct->RTC_WeekDay = (uint8_t)((tmpdate & (RTC_DR_WDU)) >> 13);
-
- /* Check the input parameters format */
- if (RTC_Format == RTC_Format_BIN)
- {
- /* Convert the Time structure parameters to Binary format */
- RTC_StampTimeStruct->RTC_Hours = (uint8_t)RTC_Bcd2ToByte(RTC_StampTimeStruct->RTC_Hours);
- RTC_StampTimeStruct->RTC_Minutes = (uint8_t)RTC_Bcd2ToByte(RTC_StampTimeStruct->RTC_Minutes);
- RTC_StampTimeStruct->RTC_Seconds = (uint8_t)RTC_Bcd2ToByte(RTC_StampTimeStruct->RTC_Seconds);
-
- /* Convert the Date structure parameters to Binary format */
- RTC_StampDateStruct->RTC_Month = (uint8_t)RTC_Bcd2ToByte(RTC_StampDateStruct->RTC_Month);
- RTC_StampDateStruct->RTC_Date = (uint8_t)RTC_Bcd2ToByte(RTC_StampDateStruct->RTC_Date);
- RTC_StampDateStruct->RTC_WeekDay = (uint8_t)RTC_Bcd2ToByte(RTC_StampDateStruct->RTC_WeekDay);
- }
-}
-
-/**
- * @brief Get the RTC timestamp Sub seconds value.
- * @param None
- * @retval RTC current timestamp Sub seconds value.
- */
-uint32_t RTC_GetTimeStampSubSecond(void)
-{
- /* Get timestamp sub seconds values from the correspondent registers */
- return (uint32_t)(RTC->TSSSR);
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group9 Tampers configuration functions
- * @brief Tampers configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Tampers configuration functions #####
- ===============================================================================
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the select Tamper pin edge.
- * @param RTC_Tamper: Selected tamper pin.
- * This parameter can be RTC_Tamper_1.
- * @param RTC_TamperTrigger: Specifies the trigger on the tamper pin that
- * stimulates tamper event.
- * This parameter can be one of the following values:
- * @arg RTC_TamperTrigger_RisingEdge: Rising Edge of the tamper pin causes tamper event.
- * @arg RTC_TamperTrigger_FallingEdge: Falling Edge of the tamper pin causes tamper event.
- * @arg RTC_TamperTrigger_LowLevel: Low Level of the tamper pin causes tamper event.
- * @arg RTC_TamperTrigger_HighLevel: High Level of the tamper pin causes tamper event.
- * @retval None
- */
-void RTC_TamperTriggerConfig(uint32_t RTC_Tamper, uint32_t RTC_TamperTrigger)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TAMPER(RTC_Tamper));
- assert_param(IS_RTC_TAMPER_TRIGGER(RTC_TamperTrigger));
-
- if (RTC_TamperTrigger == RTC_TamperTrigger_RisingEdge)
- {
- /* Configure the RTC_TAFCR register */
- RTC->TAFCR &= (uint32_t)((uint32_t)~(RTC_Tamper << 1));
- }
- else
- {
- /* Configure the RTC_TAFCR register */
- RTC->TAFCR |= (uint32_t)(RTC_Tamper << 1);
- }
-}
-
-/**
- * @brief Enables or Disables the Tamper detection.
- * @param RTC_Tamper: Selected tamper pin.
- * This parameter can be RTC_Tamper_1.
- * @param NewState: new state of the tamper pin.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_TamperCmd(uint32_t RTC_Tamper, FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TAMPER(RTC_Tamper));
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- if (NewState != DISABLE)
- {
- /* Enable the selected Tamper pin */
- RTC->TAFCR |= (uint32_t)RTC_Tamper;
- }
- else
- {
- /* Disable the selected Tamper pin */
- RTC->TAFCR &= (uint32_t)~RTC_Tamper;
- }
-}
-
-/**
- * @brief Configures the Tampers Filter.
- * @param RTC_TamperFilter: Specifies the tampers filter.
- * This parameter can be one of the following values:
- * @arg RTC_TamperFilter_Disable: Tamper filter is disabled.
- * @arg RTC_TamperFilter_2Sample: Tamper is activated after 2 consecutive
- * samples at the active level
- * @arg RTC_TamperFilter_4Sample: Tamper is activated after 4 consecutive
- * samples at the active level
- * @arg RTC_TamperFilter_8Sample: Tamper is activated after 8 consecutive
- * samples at the active level
- * @retval None
- */
-void RTC_TamperFilterConfig(uint32_t RTC_TamperFilter)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TAMPER_FILTER(RTC_TamperFilter));
-
- /* Clear TAMPFLT[1:0] bits in the RTC_TAFCR register */
- RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPFLT);
-
- /* Configure the RTC_TAFCR register */
- RTC->TAFCR |= (uint32_t)RTC_TamperFilter;
-}
-
-/**
- * @brief Configures the Tampers Sampling Frequency.
- * @param RTC_TamperSamplingFreq: Specifies the tampers Sampling Frequency.
- * This parameter can be one of the following values:
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div32768: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 32768
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div16384: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 16384
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div8192: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 8192
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div4096: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 4096
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div2048: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 2048
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div1024: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 1024
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div512: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 512
- * @arg RTC_TamperSamplingFreq_RTCCLK_Div256: Each of the tamper inputs are sampled
- * with a frequency = RTCCLK / 256
- * @retval None
- */
-void RTC_TamperSamplingFreqConfig(uint32_t RTC_TamperSamplingFreq)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TAMPER_SAMPLING_FREQ(RTC_TamperSamplingFreq));
-
- /* Clear TAMPFREQ[2:0] bits in the RTC_TAFCR register */
- RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPFREQ);
-
- /* Configure the RTC_TAFCR register */
- RTC->TAFCR |= (uint32_t)RTC_TamperSamplingFreq;
-}
-
-/**
- * @brief Configures the Tampers Pins input Precharge Duration.
- * @param RTC_TamperPrechargeDuration: Specifies the Tampers Pins input
- * Precharge Duration.
- * This parameter can be one of the following values:
- * @arg RTC_TamperPrechargeDuration_1RTCCLK: Tamper pins are precharged before sampling during 1 RTCCLK cycle
- * @arg RTC_TamperPrechargeDuration_2RTCCLK: Tamper pins are precharged before sampling during 2 RTCCLK cycle
- * @arg RTC_TamperPrechargeDuration_4RTCCLK: Tamper pins are precharged before sampling during 4 RTCCLK cycle
- * @arg RTC_TamperPrechargeDuration_8RTCCLK: Tamper pins are precharged before sampling during 8 RTCCLK cycle
- * @retval None
- */
-void RTC_TamperPinsPrechargeDuration(uint32_t RTC_TamperPrechargeDuration)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TAMPER_PRECHARGE_DURATION(RTC_TamperPrechargeDuration));
-
- /* Clear TAMPPRCH[1:0] bits in the RTC_TAFCR register */
- RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPPRCH);
-
- /* Configure the RTC_TAFCR register */
- RTC->TAFCR |= (uint32_t)RTC_TamperPrechargeDuration;
-}
-
-/**
- * @brief Enables or Disables the TimeStamp on Tamper Detection Event.
- * @note The timestamp is valid even the TSE bit in tamper control register
- * is reset.
- * @param NewState: new state of the timestamp on tamper event.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_TimeStampOnTamperDetectionCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- if (NewState != DISABLE)
- {
- /* Save timestamp on tamper detection event */
- RTC->TAFCR |= (uint32_t)RTC_TAFCR_TAMPTS;
- }
- else
- {
- /* Tamper detection does not cause a timestamp to be saved */
- RTC->TAFCR &= (uint32_t)~RTC_TAFCR_TAMPTS;
- }
-}
-
-/**
- * @brief Enables or Disables the Precharge of Tamper pin.
- * @param NewState: new state of tamper pull up.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_TamperPullUpCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- if (NewState != DISABLE)
- {
- /* Enable precharge of the selected Tamper pin */
- RTC->TAFCR &= (uint32_t)~RTC_TAFCR_TAMPPUDIS;
- }
- else
- {
- /* Disable precharge of the selected Tamper pin */
- RTC->TAFCR |= (uint32_t)RTC_TAFCR_TAMPPUDIS;
- }
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group10 Backup Data Registers configuration functions
- * @brief Backup Data Registers configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Backup Data Registers configuration functions #####
- ===============================================================================
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Writes a data in a specified RTC Backup data register.
- * @param RTC_BKP_DR: RTC Backup data Register number.
- * This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
- * specify the register.
- * @param Data: Data to be written in the specified RTC Backup data register.
- * @retval None
- */
-void RTC_WriteBackupRegister(uint32_t RTC_BKP_DR, uint32_t Data)
-{
- __IO uint32_t tmp = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_BKP(RTC_BKP_DR));
-
- tmp = RTC_BASE + 0x50;
- tmp += (RTC_BKP_DR * 4);
-
- /* Write the specified register */
- *(__IO uint32_t *)tmp = (uint32_t)Data;
-}
-
-/**
- * @brief Reads data from the specified RTC Backup data Register.
- * @param RTC_BKP_DR: RTC Backup data Register number.
- * This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
- * specify the register.
- * @retval None
- */
-uint32_t RTC_ReadBackupRegister(uint32_t RTC_BKP_DR)
-{
- __IO uint32_t tmp = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_BKP(RTC_BKP_DR));
-
- tmp = RTC_BASE + 0x50;
- tmp += (RTC_BKP_DR * 4);
-
- /* Read the specified register */
- return (*(__IO uint32_t *)tmp);
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group11 RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration functions
- * @brief RTC Tamper and TimeStamp Pins Selection and Output Type Config
- * configuration functions
- *
-@verbatim
- ==================================================================================================
- ##### RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration functions #####
- ==================================================================================================
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Selects the RTC Tamper Pin.
- * @param RTC_TamperPin: specifies the RTC Tamper Pin.
- * This parameter can be one of the following values:
- * @arg RTC_TamperPin_PC13: PC13 is selected as RTC Tamper Pin.
- * @arg RTC_TamperPin_PI8: PI8 is selected as RTC Tamper Pin.
- * @retval None
- */
-void RTC_TamperPinSelection(uint32_t RTC_TamperPin)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TAMPER_PIN(RTC_TamperPin));
-
- RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TAMPINSEL);
- RTC->TAFCR |= (uint32_t)(RTC_TamperPin);
-}
-
-/**
- * @brief Selects the RTC TimeStamp Pin.
- * @param RTC_TimeStampPin: specifies the RTC TimeStamp Pin.
- * This parameter can be one of the following values:
- * @arg RTC_TimeStampPin_PC13: PC13 is selected as RTC TimeStamp Pin.
- * @arg RTC_TimeStampPin_PI8: PI8 is selected as RTC TimeStamp Pin.
- * @retval None
- */
-void RTC_TimeStampPinSelection(uint32_t RTC_TimeStampPin)
-{
- /* Check the parameters */
- assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
-
- RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_TSINSEL);
- RTC->TAFCR |= (uint32_t)(RTC_TimeStampPin);
-}
-
-/**
- * @brief Configures the RTC Output Pin mode.
- * @param RTC_OutputType: specifies the RTC Output (PC13) pin mode.
- * This parameter can be one of the following values:
- * @arg RTC_OutputType_OpenDrain: RTC Output (PC13) is configured in
- * Open Drain mode.
- * @arg RTC_OutputType_PushPull: RTC Output (PC13) is configured in
- * Push Pull mode.
- * @retval None
- */
-void RTC_OutputTypeConfig(uint32_t RTC_OutputType)
-{
- /* Check the parameters */
- assert_param(IS_RTC_OUTPUT_TYPE(RTC_OutputType));
-
- RTC->TAFCR &= (uint32_t)~(RTC_TAFCR_ALARMOUTTYPE);
- RTC->TAFCR |= (uint32_t)(RTC_OutputType);
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group12 Shift control synchronisation functions
- * @brief Shift control synchronisation functions
- *
-@verbatim
- ===============================================================================
- ##### Shift control synchronisation functions #####
- ===============================================================================
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the Synchronization Shift Control Settings.
- * @note When REFCKON is set, firmware must not write to Shift control register
- * @param RTC_ShiftAdd1S : Select to add or not 1 second to the time Calendar.
- * This parameter can be one of the following values :
- * @arg RTC_ShiftAdd1S_Set : Add one second to the clock calendar.
- * @arg RTC_ShiftAdd1S_Reset: No effect.
- * @param RTC_ShiftSubFS: Select the number of Second Fractions to Substitute.
- * This parameter can be one any value from 0 to 0x7FFF.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: RTC Shift registers are configured
- * - ERROR: RTC Shift registers are not configured
-*/
-ErrorStatus RTC_SynchroShiftConfig(uint32_t RTC_ShiftAdd1S, uint32_t RTC_ShiftSubFS)
-{
- ErrorStatus status = ERROR;
- uint32_t shpfcount = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_SHIFT_ADD1S(RTC_ShiftAdd1S));
- assert_param(IS_RTC_SHIFT_SUBFS(RTC_ShiftSubFS));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- /* Check if a Shift is pending*/
- if ((RTC->ISR & RTC_ISR_SHPF) != RESET)
- {
- /* Wait until the shift is completed*/
- while (((RTC->ISR & RTC_ISR_SHPF) != RESET) && (shpfcount != SHPF_TIMEOUT))
- {
- shpfcount++;
- }
- }
-
- /* Check if the Shift pending is completed or if there is no Shift operation at all*/
- if ((RTC->ISR & RTC_ISR_SHPF) == RESET)
- {
- /* check if the reference clock detection is disabled */
- if((RTC->CR & RTC_CR_REFCKON) == RESET)
- {
- /* Configure the Shift settings */
- RTC->SHIFTR = (uint32_t)(uint32_t)(RTC_ShiftSubFS) | (uint32_t)(RTC_ShiftAdd1S);
-
- if(RTC_WaitForSynchro() == ERROR)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- }
- else
- {
- status = ERROR;
- }
- }
- else
- {
- status = ERROR;
- }
-
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-
- return (ErrorStatus)(status);
-}
-
-/**
- * @}
- */
-
-/** @defgroup RTC_Group13 Interrupts and flags management functions
- * @brief Interrupts and flags management functions
- *
-@verbatim
- ===============================================================================
- ##### Interrupts and flags management functions #####
- ===============================================================================
- [..] All RTC interrupts are connected to the EXTI controller.
-
- (+) To enable the RTC Alarm interrupt, the following sequence is required:
- (++) Configure and enable the EXTI Line 17 in interrupt mode and select
- the rising edge sensitivity using the EXTI_Init() function.
- (++) Configure and enable the RTC_Alarm IRQ channel in the NVIC using the
- NVIC_Init() function.
- (++) Configure the RTC to generate RTC alarms (Alarm A and/or Alarm B) using
- the RTC_SetAlarm() and RTC_AlarmCmd() functions.
-
- (+) To enable the RTC Wakeup interrupt, the following sequence is required:
- (++) Configure and enable the EXTI Line 22 in interrupt mode and select the
- rising edge sensitivity using the EXTI_Init() function.
- (++) Configure and enable the RTC_WKUP IRQ channel in the NVIC using the
- NVIC_Init() function.
- (++) Configure the RTC to generate the RTC wakeup timer event using the
- RTC_WakeUpClockConfig(), RTC_SetWakeUpCounter() and RTC_WakeUpCmd()
- functions.
-
- (+) To enable the RTC Tamper interrupt, the following sequence is required:
- (++) Configure and enable the EXTI Line 21 in interrupt mode and select
- the rising edge sensitivity using the EXTI_Init() function.
- (++) Configure and enable the TAMP_STAMP IRQ channel in the NVIC using the
- NVIC_Init() function.
- (++) Configure the RTC to detect the RTC tamper event using the
- RTC_TamperTriggerConfig() and RTC_TamperCmd() functions.
-
- (+) To enable the RTC TimeStamp interrupt, the following sequence is required:
- (++) Configure and enable the EXTI Line 21 in interrupt mode and select the
- rising edge sensitivity using the EXTI_Init() function.
- (++) Configure and enable the TAMP_STAMP IRQ channel in the NVIC using the
- NVIC_Init() function.
- (++) Configure the RTC to detect the RTC time stamp event using the
- RTC_TimeStampCmd() functions.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Enables or disables the specified RTC interrupts.
- * @param RTC_IT: specifies the RTC interrupt sources to be enabled or disabled.
- * This parameter can be any combination of the following values:
- * @arg RTC_IT_TS: Time Stamp interrupt mask
- * @arg RTC_IT_WUT: WakeUp Timer interrupt mask
- * @arg RTC_IT_ALRB: Alarm B interrupt mask
- * @arg RTC_IT_ALRA: Alarm A interrupt mask
- * @arg RTC_IT_TAMP: Tamper event interrupt mask
- * @param NewState: new state of the specified RTC interrupts.
- * This parameter can be: ENABLE or DISABLE.
- * @retval None
- */
-void RTC_ITConfig(uint32_t RTC_IT, FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_RTC_CONFIG_IT(RTC_IT));
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- /* Disable the write protection for RTC registers */
- RTC->WPR = 0xCA;
- RTC->WPR = 0x53;
-
- if (NewState != DISABLE)
- {
- /* Configure the Interrupts in the RTC_CR register */
- RTC->CR |= (uint32_t)(RTC_IT & ~RTC_TAFCR_TAMPIE);
- /* Configure the Tamper Interrupt in the RTC_TAFCR */
- RTC->TAFCR |= (uint32_t)(RTC_IT & RTC_TAFCR_TAMPIE);
- }
- else
- {
- /* Configure the Interrupts in the RTC_CR register */
- RTC->CR &= (uint32_t)~(RTC_IT & (uint32_t)~RTC_TAFCR_TAMPIE);
- /* Configure the Tamper Interrupt in the RTC_TAFCR */
- RTC->TAFCR &= (uint32_t)~(RTC_IT & RTC_TAFCR_TAMPIE);
- }
- /* Enable the write protection for RTC registers */
- RTC->WPR = 0xFF;
-}
-
-/**
- * @brief Checks whether the specified RTC flag is set or not.
- * @param RTC_FLAG: specifies the flag to check.
- * This parameter can be one of the following values:
- * @arg RTC_FLAG_RECALPF: RECALPF event flag.
- * @arg RTC_FLAG_TAMP1F: Tamper 1 event flag
- * @arg RTC_FLAG_TSOVF: Time Stamp OverFlow flag
- * @arg RTC_FLAG_TSF: Time Stamp event flag
- * @arg RTC_FLAG_WUTF: WakeUp Timer flag
- * @arg RTC_FLAG_ALRBF: Alarm B flag
- * @arg RTC_FLAG_ALRAF: Alarm A flag
- * @arg RTC_FLAG_INITF: Initialization mode flag
- * @arg RTC_FLAG_RSF: Registers Synchronized flag
- * @arg RTC_FLAG_INITS: Registers Configured flag
- * @arg RTC_FLAG_SHPF: Shift operation pending flag.
- * @arg RTC_FLAG_WUTWF: WakeUp Timer Write flag
- * @arg RTC_FLAG_ALRBWF: Alarm B Write flag
- * @arg RTC_FLAG_ALRAWF: Alarm A write flag
- * @retval The new state of RTC_FLAG (SET or RESET).
- */
-FlagStatus RTC_GetFlagStatus(uint32_t RTC_FLAG)
-{
- FlagStatus bitstatus = RESET;
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_GET_FLAG(RTC_FLAG));
-
- /* Get all the flags */
- tmpreg = (uint32_t)(RTC->ISR & RTC_FLAGS_MASK);
-
- /* Return the status of the flag */
- if ((tmpreg & RTC_FLAG) != (uint32_t)RESET)
- {
- bitstatus = SET;
- }
- else
- {
- bitstatus = RESET;
- }
- return bitstatus;
-}
-
-/**
- * @brief Clears the RTC's pending flags.
- * @param RTC_FLAG: specifies the RTC flag to clear.
- * This parameter can be any combination of the following values:
- * @arg RTC_FLAG_TAMP1F: Tamper 1 event flag
- * @arg RTC_FLAG_TSOVF: Time Stamp Overflow flag
- * @arg RTC_FLAG_TSF: Time Stamp event flag
- * @arg RTC_FLAG_WUTF: WakeUp Timer flag
- * @arg RTC_FLAG_ALRBF: Alarm B flag
- * @arg RTC_FLAG_ALRAF: Alarm A flag
- * @arg RTC_FLAG_RSF: Registers Synchronized flag
- * @retval None
- */
-void RTC_ClearFlag(uint32_t RTC_FLAG)
-{
- /* Check the parameters */
- assert_param(IS_RTC_CLEAR_FLAG(RTC_FLAG));
-
- /* Clear the Flags in the RTC_ISR register */
- RTC->ISR = (uint32_t)((uint32_t)(~((RTC_FLAG | RTC_ISR_INIT)& 0x0000FFFF) | (uint32_t)(RTC->ISR & RTC_ISR_INIT)));
-}
-
-/**
- * @brief Checks whether the specified RTC interrupt has occurred or not.
- * @param RTC_IT: specifies the RTC interrupt source to check.
- * This parameter can be one of the following values:
- * @arg RTC_IT_TS: Time Stamp interrupt
- * @arg RTC_IT_WUT: WakeUp Timer interrupt
- * @arg RTC_IT_ALRB: Alarm B interrupt
- * @arg RTC_IT_ALRA: Alarm A interrupt
- * @arg RTC_IT_TAMP1: Tamper 1 event interrupt
- * @retval The new state of RTC_IT (SET or RESET).
- */
-ITStatus RTC_GetITStatus(uint32_t RTC_IT)
-{
- ITStatus bitstatus = RESET;
- uint32_t tmpreg = 0, enablestatus = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_GET_IT(RTC_IT));
-
- /* Get the TAMPER Interrupt enable bit and pending bit */
- tmpreg = (uint32_t)(RTC->TAFCR & (RTC_TAFCR_TAMPIE));
-
- /* Get the Interrupt enable Status */
- enablestatus = (uint32_t)((RTC->CR & RTC_IT) | (tmpreg & (RTC_IT >> 15)));
-
- /* Get the Interrupt pending bit */
- tmpreg = (uint32_t)((RTC->ISR & (uint32_t)(RTC_IT >> 4)));
-
- /* Get the status of the Interrupt */
- if ((enablestatus != (uint32_t)RESET) && ((tmpreg & 0x0000FFFF) != (uint32_t)RESET))
- {
- bitstatus = SET;
- }
- else
- {
- bitstatus = RESET;
- }
- return bitstatus;
-}
-
-/**
- * @brief Clears the RTC's interrupt pending bits.
- * @param RTC_IT: specifies the RTC interrupt pending bit to clear.
- * This parameter can be any combination of the following values:
- * @arg RTC_IT_TS: Time Stamp interrupt
- * @arg RTC_IT_WUT: WakeUp Timer interrupt
- * @arg RTC_IT_ALRB: Alarm B interrupt
- * @arg RTC_IT_ALRA: Alarm A interrupt
- * @arg RTC_IT_TAMP1: Tamper 1 event interrupt
- * @retval None
- */
-void RTC_ClearITPendingBit(uint32_t RTC_IT)
-{
- uint32_t tmpreg = 0;
-
- /* Check the parameters */
- assert_param(IS_RTC_CLEAR_IT(RTC_IT));
-
- /* Get the RTC_ISR Interrupt pending bits mask */
- tmpreg = (uint32_t)(RTC_IT >> 4);
-
- /* Clear the interrupt pending bits in the RTC_ISR register */
- RTC->ISR = (uint32_t)((uint32_t)(~((tmpreg | RTC_ISR_INIT)& 0x0000FFFF) | (uint32_t)(RTC->ISR & RTC_ISR_INIT)));
-}
-
-/**
- * @}
- */
-
-/**
- * @brief Converts a 2 digit decimal to BCD format.
- * @param Value: Byte to be converted.
- * @retval Converted byte
- */
-static uint8_t RTC_ByteToBcd2(uint8_t Value)
-{
- uint8_t bcdhigh = 0;
-
- while (Value >= 10)
- {
- bcdhigh++;
- Value -= 10;
- }
-
- return ((uint8_t)(bcdhigh << 4) | Value);
-}
-
-/**
- * @brief Convert from 2 digit BCD to Binary.
- * @param Value: BCD value to be converted.
- * @retval Converted word
- */
-static uint8_t RTC_Bcd2ToByte(uint8_t Value)
-{
- uint8_t tmp = 0;
- tmp = ((uint8_t)(Value & (uint8_t)0xF0) >> (uint8_t)0x4) * 10;
- return (tmp + (Value & (uint8_t)0x0F));
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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