diff options
| author | Oxore <oxore@protonmail.com> | 2023-03-05 20:20:45 +0300 |
|---|---|---|
| committer | Oxore <oxore@protonmail.com> | 2023-03-05 20:20:45 +0300 |
| commit | ea807de65b0485ac58b6eae576209c64d4d5c4e9 (patch) | |
| tree | b4264d20e1d700cfd9e0ece9d847a825dd1dfc03 /Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_rtc.c | |
| parent | dd01e7ed22cea652061f0d12cecf929e04b285e9 (diff) | |
Split app code and third party libraries
Diffstat (limited to 'Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_rtc.c')
| -rw-r--r-- | Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_rtc.c | 2519 |
1 files changed, 0 insertions, 2519 deletions
diff --git a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_rtc.c b/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_rtc.c deleted file mode 100644 index f0481d1..0000000 --- a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_rtc.c +++ /dev/null @@ -1,2519 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_rtc.c - * @author MCD Application Team - * @version V1.3.0 - * @date 16-January-2014 - * @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) configuration - * + Daylight Saving configuration - * + Output pin Configuration - * + Digital Calibration configuration - * + TimeStamp configuration - * + Tampers configuration - * + Backup Data Registers configuration - * + Output Type Config configuration - * + Shift control synchronisation - * + Interrupts and flags management - * - @verbatim - =============================================================================== - ##### Backup Domain Operating Condition ##### - =============================================================================== - [..] The real-time clock (RTC) and the RTC backup registers can be powered - from the VBAT voltage when the main VDD supply is powered off. - To retain the content of the RTC backup registers 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 - (#) PC13 to PC15 I/Os I/Os (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 - - [..] 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 - - ##### Backup Domain Reset ##### - =============================================================================== - [..] The backup domain reset sets all RTC registers and the RCC_BDCR - register to their reset values. - 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 and RTC backup data - registers) is protected against possible unwanted write accesses. - [..] To enable access to the Backup Domain and RTC registers, proceed as follows: - (#) Enable the Power Controller (PWR) APB1 interface clock using the - RCC_APB1PeriphClockCmd() function. - (#) Enable access to Backup 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 this driver ##### - =============================================================================== - [..] - (+) Enable the backup 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. - (+) To read the RTC subsecond, use the RTC_GetSubSecond() function. - (+) 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. - 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. - - ***Original 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. - - ***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. - - ***Tamper configuration *** - =========================== - [..] - (+) 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 RTC Tamper using the RTC_TamperCmd() function. - (+) Enable the Time stamp on Tamper detection event using - RTC_TSOnTamperDetecCmd() function. - - ***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 alarm (Alarm A), 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 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 | WKUP2 |ALARMOUTTYPE | - | configuration | ENABLED | ENABLED | ENABLED | ENABLED |ENABLED | AFO_ALARM | - | and function | | | | | |Configuration | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | Alarm out | | | | | Don't | | - | output OD | 1 | 0 |Don't care | Don't care | care | 0 | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | Alarm out | | | | | Don't | | - | output PP | 1 | 0 |Don't care | Don't care | care | 1 | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | Calibration out | | | | | Don't | | - | output PP | 0 | 1 |Don't care | Don't care | care | Don't care | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | TAMPER input | | | | | Don't | | - | floating | 0 | 0 | 1 | 0 | care | Don't care | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | TIMESTAMP and | | | | | Don't | | - | TAMPER input | 0 | 0 | 1 | 1 | care | Don't care | - | floating | | | | | | | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | TIMESTAMP input | | | | | Don't | | - | floating | 0 | 0 | 0 | 1 | care | Don't care | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | Wakeup Pin 2 | 0 | 0 | 0 | 0 | 1 | Don't care | - |-----------------|----------|----------|-----------|--------------|--------|--------------| - | Standard GPIO | 0 | 0 | 0 | 0 | 0 | Don't care | - +------------------------------------------------------------------------------------------+ - - @endverbatim - - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT 2014 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 "stm32f0xx_rtc.h" -#include "stm32f0xx_conf.h" - -/** @addtogroup STM32F0xx_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_ALRAF | \ - RTC_FLAG_RSF | RTC_FLAG_INITS |RTC_FLAG_INITF | \ - RTC_FLAG_TAMP1F | RTC_FLAG_TAMP2F | RTC_FLAG_RECALPF | \ - RTC_FLAG_SHPF)) - -#define INITMODE_TIMEOUT ((uint32_t) 0x00004000) -#define SYNCHRO_TIMEOUT ((uint32_t) 0x00008000) -#define RECALPF_TIMEOUT ((uint32_t) 0x00001000) -#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) -{ - 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->WUTR = (uint32_t)0x0000FFFF; - RTC->DR = (uint32_t)0x00002101; - RTC->CR &= (uint32_t)0x00000000; - RTC->PRER = (uint32_t)0x007F00FF; - RTC->ALRMAR = (uint32_t)0x00000000; - RTC->SHIFTR = (uint32_t)0x00000000; - RTC->CALR = (uint32_t)0x00000000; - RTC->ALRMASSR = (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; - - /* Wait till the RTC RSF flag is set */ - 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; - - if ((RTC->CR & RTC_CR_BYPSHAD) != RESET) - { - /* Bypass shadow mode */ - status = SUCCESS; - } - else - { - /* 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 Subseconds value. - * @note This function freeze the Time and Date registers after reading the - * SSR register. - * @param None - * @retval RTC current Calendar Subseconds value. - */ -uint32_t RTC_GetSubSecond(void) -{ - uint32_t tmpreg = 0; - - /* Get subseconds 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); - RTC_DateStruct->RTC_WeekDay = (uint8_t)(RTC_DateStruct->RTC_WeekDay); - } -} - -/** - * @} - */ - -/** @defgroup RTC_Group3 Alarms configuration functions - * @brief Alarms (Alarm A) configuration functions - * -@verbatim - =============================================================================== - ##### Alarms (Alarm A and Alarm 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 - * @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_RTC_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 */ - RTC->ALRMAR = (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 - * @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_ALRMAR register */ - tmpreg = (uint32_t)(RTC->ALRMAR); - - /* 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 - * @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 Subseconds 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 - * @param RTC_AlarmSubSecondValue: specifies the Subseconds value. - * This parameter can be a value from 0 to 0x00007FFF. - * @param RTC_AlarmSubSecondMask: specifies the Subseconds 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, uint8_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 SubSecond registers */ - tmpreg = (uint32_t) (((uint32_t)(RTC_AlarmSubSecondValue)) | ((uint32_t)(RTC_AlarmSubSecondMask) << 24)); - - /* Configure the AlarmA SubSecond register */ - RTC->ALRMASSR = tmpreg; - - /* Enable the write protection for RTC registers */ - RTC->WPR = 0xFF; - -} - -/** - * @brief Gets the RTC Alarm Subseconds 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 - * @param None - * @retval RTC Alarm Subseconds value. - */ -uint32_t RTC_GetAlarmSubSecond(uint32_t RTC_Alarm) -{ - uint32_t tmpreg = 0; - - /* Get the RTC_ALRMAR register */ - tmpreg = (uint32_t)((RTC->ALRMASSR) & RTC_ALRMASSR_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. - * This function is available for STM32F072 devices. - * @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 - * @arg RTC_WakeUpClock_RTCCLK_Div8 - * @arg RTC_WakeUpClock_RTCCLK_Div4 - * @arg RTC_WakeUpClock_RTCCLK_Div2 - * @arg RTC_WakeUpClock_CK_SPRE_16bits - * @arg RTC_WakeUpClock_CK_SPRE_17bits - * @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. - * This function is available for STM32F072 devices. - * @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. - * This function is available for STM32F072 devices. - * @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. - * This function is available for STM32F072 devices. - * @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 - =============================================================================== - ##### WakeUp Timer configuration functions ##### - =============================================================================== - [..] This section provide functions allowing to program and read the RTC WakeUp. - - 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_WakeUp: signal of WakeUp mapped to output, available only for STM32F072 devices - * @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 is high (depending on OSEL) - * @arg RTC_OutputPolarity_Low: The output pin is low when the - * ALRAF 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 Digital Calibration configuration functions - * -@verbatim - =============================================================================== - ##### Digital Calibration configuration functions ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @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 config*/ - RTC->CR &= (uint32_t)~(RTC_CR_CALSEL); - - /* 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 periode is 32s. - * @arg RTC_SmoothCalibPeriod_16sec: The smooth calibration periode is 16s. - * @arg RTC_SmoothCalibPeriod_8sec: The smooth calibartion periode 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 Subseconds value. - * @param None - * @retval RTC current timestamp Subseconds value. - */ -uint32_t RTC_GetTimeStampSubSecond(void) -{ - /* Get timestamp subseconds 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 any combination of the following values: - * @arg RTC_Tamper_1: Select Tamper 1. - * @arg RTC_Tamper_2: Select Tamper 2. - * @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 any combination of the following values: - * @arg RTC_Tamper_1: Select Tamper 1. - * @arg RTC_Tamper_2: Select Tamper 2. - * @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 pre-charged before sampling during 1 RTCCLK cycle - * @arg RTC_TamperPrechargeDuration_2RTCCLK: Tamper pins are pre-charged before sampling during 2 RTCCLK cycle - * @arg RTC_TamperPrechargeDuration_4RTCCLK: Tamper pins are pre-charged before sampling during 4 RTCCLK cycle - * @arg RTC_TamperPrechargeDuration_8RTCCLK: Tamper pins are pre-charged 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 4 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 Output Type Config configuration functions - * @brief Output Type Config configuration functions - * -@verbatim - =============================================================================== - ##### Output Type Config configuration functions ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @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) using - the RTC_SetAlarm() and RTC_AlarmCmd() functions. - - (+) To enable the RTC Tamper interrupt, the following sequence is required: - (++) Configure and enable the EXTI Line 19 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 19 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, available only for STM32F072 devices - * @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_TAMP2F: Tamper 2 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, available only for STM32F072 devices - * @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 - * @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_TAMP2F: Tamper 2 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, available only for STM32F072 devices - * @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)& 0x0001FFFF) | (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, available only for STM32F072 devices - * @arg RTC_IT_ALRA: Alarm A interrupt - * @arg RTC_IT_TAMP1: Tamper1 event interrupt - * @arg RTC_IT_TAMP2: Tamper2 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 >> (RTC_IT >> 18)) >> 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, available only for STM32F072 devices - * @arg RTC_IT_ALRA: Alarm A interrupt - * @arg RTC_IT_TAMP1: Tamper1 event interrupt - * @arg RTC_IT_TAMP2: Tamper2 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****/ |