559 lines
18 KiB
C
559 lines
18 KiB
C
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/**
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******************************************************************************
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* @file stm32f1xx_ll_rtc.c
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* @author MCD Application Team
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* @version V1.1.1
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* @date 12-May-2017
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* @brief RTC LL module driver.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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#if defined(USE_FULL_LL_DRIVER)
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f1xx_ll_rtc.h"
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#include "stm32f1xx_ll_cortex.h"
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#ifdef USE_FULL_ASSERT
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#include "stm32_assert.h"
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#else
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#define assert_param(expr) ((void)0U)
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#endif
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/** @addtogroup STM32F1xx_LL_Driver
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* @{
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*/
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#if defined(RTC)
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/** @addtogroup RTC_LL
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/** @addtogroup RTC_LL_Private_Constants
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* @{
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*/
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/* Default values used for prescaler */
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#define RTC_ASYNCH_PRESC_DEFAULT 0x00007FFFU
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/* Values used for timeout */
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#define RTC_INITMODE_TIMEOUT 1000U /* 1s when tick set to 1ms */
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#define RTC_SYNCHRO_TIMEOUT 1000U /* 1s when tick set to 1ms */
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/**
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* @}
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*/
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup RTC_LL_Private_Macros
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* @{
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*/
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#define IS_LL_RTC_ASYNCH_PREDIV(__VALUE__) ((__VALUE__) <= 0xFFFFFU)
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#define IS_LL_RTC_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_FORMAT_BIN) \
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|| ((__VALUE__) == LL_RTC_FORMAT_BCD))
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#define IS_LL_RTC_HOUR24(__HOUR__) ((__HOUR__) <= 23U)
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#define IS_LL_RTC_MINUTES(__MINUTES__) ((__MINUTES__) <= 59U)
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#define IS_LL_RTC_SECONDS(__SECONDS__) ((__SECONDS__) <= 59U)
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#define IS_LL_RTC_CALIB_OUTPUT(__OUTPUT__) (((__OUTPUT__) == LL_RTC_CALIB_OUTPUT_NONE) || \
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((__OUTPUT__) == LL_RTC_CALIB_OUTPUT_RTCCLOCK) || \
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((__OUTPUT__) == LL_RTC_CALIB_OUTPUT_ALARM) || \
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((__OUTPUT__) == LL_RTC_CALIB_OUTPUT_SECOND))
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/**
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* @}
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*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup RTC_LL_Exported_Functions
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* @{
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*/
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/** @addtogroup RTC_LL_EF_Init
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* @{
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*/
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/**
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* @brief De-Initializes the RTC registers to their default reset values.
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* @note This function doesn't reset the RTC Clock source and RTC Backup Data
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* registers.
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* @param RTCx RTC Instance
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: RTC registers are de-initialized
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* - ERROR: RTC registers are not de-initialized
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*/
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ErrorStatus LL_RTC_DeInit(RTC_TypeDef *RTCx)
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{
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ErrorStatus status = ERROR;
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/* Check the parameter */
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assert_param(IS_RTC_ALL_INSTANCE(RTCx));
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/* Disable the write protection for RTC registers */
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LL_RTC_DisableWriteProtection(RTCx);
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/* Set Initialization mode */
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if (LL_RTC_EnterInitMode(RTCx) != ERROR)
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{
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LL_RTC_WriteReg(RTCx,CNTL, 0x0000);
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LL_RTC_WriteReg(RTCx,CNTH, 0x0000);
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LL_RTC_WriteReg(RTCx,PRLH, 0x0000);
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LL_RTC_WriteReg(RTCx,PRLL, 0x8000);
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LL_RTC_WriteReg(RTCx,CRH, 0x0000);
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LL_RTC_WriteReg(RTCx,CRL, 0x0020);
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/* Reset Tamper and alternate functions configuration register */
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LL_RTC_WriteReg(BKP,RTCCR, 0x00000000U);
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LL_RTC_WriteReg(BKP,CR, 0x00000000U);
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LL_RTC_WriteReg(BKP,CSR, 0x00000000U);
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/* Exit Initialization Mode */
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if(LL_RTC_ExitInitMode(RTCx) == ERROR)
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{
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return ERROR;
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}
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/* Wait till the RTC RSF flag is set */
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status = LL_RTC_WaitForSynchro(RTCx);
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/* Clear RSF Flag */
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LL_RTC_ClearFlag_RS(RTCx);
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}
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/* Enable the write protection for RTC registers */
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LL_RTC_EnableWriteProtection(RTCx);
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return status;
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}
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/**
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* @brief Initializes the RTC registers according to the specified parameters
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* in RTC_InitStruct.
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* @param RTCx RTC Instance
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* @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure that contains
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* the configuration information for the RTC peripheral.
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* @note The RTC Prescaler register is write protected and can be written in
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* initialization mode only.
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* @note the user should call LL_RTC_StructInit() or the structure of Prescaler
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* need to be initialized before RTC init()
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: RTC registers are initialized
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* - ERROR: RTC registers are not initialized
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*/
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ErrorStatus LL_RTC_Init(RTC_TypeDef *RTCx, LL_RTC_InitTypeDef *RTC_InitStruct)
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{
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ErrorStatus status = ERROR;
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/* Check the parameters */
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assert_param(IS_RTC_ALL_INSTANCE(RTCx));
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assert_param(IS_LL_RTC_ASYNCH_PREDIV(RTC_InitStruct->AsynchPrescaler));
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assert_param(IS_LL_RTC_CALIB_OUTPUT(RTC_InitStruct->OutPutSource));
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/* Waiting for synchro */
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if(LL_RTC_WaitForSynchro(RTCx) != ERROR)
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{
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/* Set Initialization mode */
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if (LL_RTC_EnterInitMode(RTCx) != ERROR)
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{
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/* Clear Flag Bits */
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LL_RTC_ClearFlag_ALR(RTCx);
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LL_RTC_ClearFlag_OW(RTCx);
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LL_RTC_ClearFlag_SEC(RTCx);
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if(RTC_InitStruct->OutPutSource != LL_RTC_CALIB_OUTPUT_NONE)
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{
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/* Disable the selected Tamper Pin */
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LL_RTC_TAMPER_Disable(BKP);
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}
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/* Set the signal which will be routed to RTC Tamper Pin */
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LL_RTC_SetOutputSource(BKP, RTC_InitStruct->OutPutSource);
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/* Configure Synchronous and Asynchronous prescaler factor */
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LL_RTC_SetAsynchPrescaler(RTCx, RTC_InitStruct->AsynchPrescaler);
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/* Exit Initialization Mode */
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LL_RTC_ExitInitMode(RTCx);
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status = SUCCESS;
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}
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}
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return status;
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}
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/**
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* @brief Set each @ref LL_RTC_InitTypeDef field to default value.
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* @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure which will be initialized.
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* @retval None
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*/
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void LL_RTC_StructInit(LL_RTC_InitTypeDef *RTC_InitStruct)
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{
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/* Set RTC_InitStruct fields to default values */
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RTC_InitStruct->AsynchPrescaler = RTC_ASYNCH_PRESC_DEFAULT;
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RTC_InitStruct->OutPutSource = LL_RTC_CALIB_OUTPUT_NONE;
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}
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/**
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* @brief Set the RTC current time.
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* @param RTCx RTC Instance
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* @param RTC_Format This parameter can be one of the following values:
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* @arg @ref LL_RTC_FORMAT_BIN
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* @arg @ref LL_RTC_FORMAT_BCD
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* @param RTC_TimeStruct pointer to a RTC_TimeTypeDef structure that contains
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* the time configuration information for the RTC.
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* @note The user should call LL_RTC_TIME_StructInit() or the structure
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* of time need to be initialized before time init()
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: RTC Time register is configured
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* - ERROR: RTC Time register is not configured
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*/
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ErrorStatus LL_RTC_TIME_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_TimeTypeDef *RTC_TimeStruct)
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{
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ErrorStatus status = ERROR;
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uint32_t counter_time = 0U;
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/* Check the parameters */
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assert_param(IS_RTC_ALL_INSTANCE(RTCx));
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assert_param(IS_LL_RTC_FORMAT(RTC_Format));
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if (RTC_Format == LL_RTC_FORMAT_BIN)
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{
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assert_param(IS_LL_RTC_HOUR24(RTC_TimeStruct->Hours));
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assert_param(IS_LL_RTC_MINUTES(RTC_TimeStruct->Minutes));
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assert_param(IS_LL_RTC_SECONDS(RTC_TimeStruct->Seconds));
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}
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else
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{
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assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours)));
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assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Minutes)));
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assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Seconds)));
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}
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/* Enter Initialization mode */
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if (LL_RTC_EnterInitMode(RTCx) != ERROR)
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{
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/* Check the input parameters format */
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if (RTC_Format != LL_RTC_FORMAT_BIN)
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{
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counter_time = (uint32_t)(((uint32_t)RTC_TimeStruct->Hours * 3600U) + \
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((uint32_t)RTC_TimeStruct->Minutes * 60U) + \
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((uint32_t)RTC_TimeStruct->Seconds));
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LL_RTC_TIME_Set(RTCx, counter_time);
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}
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else
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{
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counter_time = (((uint32_t)(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours)) * 3600U) + \
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((uint32_t)(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Minutes)) * 60U) + \
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((uint32_t)(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Seconds))));
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LL_RTC_TIME_Set(RTCx, counter_time);
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}
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status = SUCCESS;
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}
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/* Exit Initialization mode */
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LL_RTC_ExitInitMode(RTCx);
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return status;
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}
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/**
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* @brief Set each @ref LL_RTC_TimeTypeDef field to default value (Time = 00h:00min:00sec).
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* @param RTC_TimeStruct pointer to a @ref LL_RTC_TimeTypeDef structure which will be initialized.
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* @retval None
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*/
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void LL_RTC_TIME_StructInit(LL_RTC_TimeTypeDef *RTC_TimeStruct)
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{
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/* Time = 00h:00min:00sec */
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RTC_TimeStruct->Hours = 0U;
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RTC_TimeStruct->Minutes = 0U;
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RTC_TimeStruct->Seconds = 0U;
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}
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/**
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* @brief Set the RTC Alarm.
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* @param RTCx RTC Instance
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* @param RTC_Format This parameter can be one of the following values:
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* @arg @ref LL_RTC_FORMAT_BIN
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* @arg @ref LL_RTC_FORMAT_BCD
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* @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure that
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* contains the alarm configuration parameters.
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* @note the user should call LL_RTC_ALARM_StructInit() or the structure
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* of Alarm need to be initialized before Alarm init()
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: ALARM registers are configured
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* - ERROR: ALARM registers are not configured
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*/
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ErrorStatus LL_RTC_ALARM_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
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{
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ErrorStatus status = ERROR;
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uint32_t counter_alarm = 0U;
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/* Check the parameters */
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assert_param(IS_RTC_ALL_INSTANCE(RTCx));
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assert_param(IS_LL_RTC_FORMAT(RTC_Format));
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if (RTC_Format == LL_RTC_FORMAT_BIN)
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{
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assert_param(IS_LL_RTC_HOUR24(RTC_AlarmStruct->AlarmTime.Hours));
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assert_param(IS_LL_RTC_MINUTES(RTC_AlarmStruct->AlarmTime.Minutes));
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assert_param(IS_LL_RTC_SECONDS(RTC_AlarmStruct->AlarmTime.Seconds));
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}
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else
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{
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assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
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assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Minutes)));
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assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Seconds)));
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}
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/* Enter Initialization mode */
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if (LL_RTC_EnterInitMode(RTCx) != ERROR)
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{
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/* Check the input parameters format */
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if (RTC_Format != LL_RTC_FORMAT_BIN)
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{
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counter_alarm = (uint32_t)(((uint32_t)RTC_AlarmStruct->AlarmTime.Hours * 3600U) + \
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((uint32_t)RTC_AlarmStruct->AlarmTime.Minutes * 60U) + \
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((uint32_t)RTC_AlarmStruct->AlarmTime.Seconds));
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LL_RTC_ALARM_Set(RTCx, counter_alarm);
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}
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else
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{
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counter_alarm = (((uint32_t)(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)) * 3600U) + \
|
||
|
|
((uint32_t)(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Minutes)) * 60U) + \
|
||
|
|
((uint32_t)(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Seconds))));
|
||
|
|
LL_RTC_ALARM_Set(RTCx, counter_alarm);
|
||
|
|
}
|
||
|
|
status = SUCCESS;
|
||
|
|
}
|
||
|
|
/* Exit Initialization mode */
|
||
|
|
LL_RTC_ExitInitMode(RTCx);
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set each @ref LL_RTC_AlarmTypeDef of ALARM field to default value (Time = 00h:00mn:00sec /
|
||
|
|
* Day = 1st day of the month/Mask = all fields are masked).
|
||
|
|
* @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure which will be initialized.
|
||
|
|
* @retval None
|
||
|
|
*/
|
||
|
|
void LL_RTC_ALARM_StructInit(LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
|
||
|
|
{
|
||
|
|
/* Alarm Time Settings : Time = 00h:00mn:00sec */
|
||
|
|
RTC_AlarmStruct->AlarmTime.Hours = 0U;
|
||
|
|
RTC_AlarmStruct->AlarmTime.Minutes = 0U;
|
||
|
|
RTC_AlarmStruct->AlarmTime.Seconds = 0U;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Enters the RTC Initialization mode.
|
||
|
|
* @param RTCx RTC Instance
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: RTC is in Init mode
|
||
|
|
* - ERROR: RTC is not in Init mode
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_RTC_EnterInitMode(RTC_TypeDef *RTCx)
|
||
|
|
{
|
||
|
|
__IO uint32_t timeout = RTC_INITMODE_TIMEOUT;
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
uint32_t tmp = 0U;
|
||
|
|
|
||
|
|
/* Check the parameter */
|
||
|
|
assert_param(IS_RTC_ALL_INSTANCE(RTCx));
|
||
|
|
|
||
|
|
/* Wait till RTC is in INIT state and if Time out is reached exit */
|
||
|
|
tmp = LL_RTC_IsActiveFlag_RTOF(RTCx);
|
||
|
|
while ((timeout != 0U) && (tmp != 1U))
|
||
|
|
{
|
||
|
|
if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
|
||
|
|
{
|
||
|
|
timeout --;
|
||
|
|
}
|
||
|
|
tmp = LL_RTC_IsActiveFlag_RTOF(RTCx);
|
||
|
|
if (timeout == 0U)
|
||
|
|
{
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Disable the write protection for RTC registers */
|
||
|
|
LL_RTC_DisableWriteProtection(RTCx);
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Exit the RTC Initialization mode.
|
||
|
|
* @note When the initialization sequence is complete, the calendar restarts
|
||
|
|
* counting after 4 RTCCLK cycles.
|
||
|
|
* @param RTCx RTC Instance
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: RTC exited from in Init mode
|
||
|
|
* - ERROR: Not applicable
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_RTC_ExitInitMode(RTC_TypeDef *RTCx)
|
||
|
|
{
|
||
|
|
__IO uint32_t timeout = RTC_INITMODE_TIMEOUT;
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
uint32_t tmp = 0U;
|
||
|
|
|
||
|
|
/* Check the parameter */
|
||
|
|
assert_param(IS_RTC_ALL_INSTANCE(RTCx));
|
||
|
|
|
||
|
|
/* Disable initialization mode */
|
||
|
|
LL_RTC_EnableWriteProtection(RTCx);
|
||
|
|
|
||
|
|
/* Wait till RTC is in INIT state and if Time out is reached exit */
|
||
|
|
tmp = LL_RTC_IsActiveFlag_RTOF(RTCx);
|
||
|
|
while ((timeout != 0U) && (tmp != 1U))
|
||
|
|
{
|
||
|
|
if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
|
||
|
|
{
|
||
|
|
timeout --;
|
||
|
|
}
|
||
|
|
tmp = LL_RTC_IsActiveFlag_RTOF(RTCx);
|
||
|
|
if (timeout == 0U)
|
||
|
|
{
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set the Time Counter
|
||
|
|
* @param RTCx RTC Instance
|
||
|
|
* @param TimeCounter this value can be from 0 to 0xFFFFFFFF
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: RTC Counter register configured
|
||
|
|
* - ERROR: Not applicable
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_RTC_TIME_SetCounter(RTC_TypeDef *RTCx, uint32_t TimeCounter)
|
||
|
|
{
|
||
|
|
ErrorStatus status = ERROR;
|
||
|
|
/* Check the parameter */
|
||
|
|
assert_param(IS_RTC_ALL_INSTANCE(RTCx));
|
||
|
|
|
||
|
|
/* Enter Initialization mode */
|
||
|
|
if (LL_RTC_EnterInitMode(RTCx) != ERROR)
|
||
|
|
{
|
||
|
|
LL_RTC_TIME_Set(RTCx, TimeCounter);
|
||
|
|
status = SUCCESS;
|
||
|
|
}
|
||
|
|
/* Exit Initialization mode */
|
||
|
|
LL_RTC_ExitInitMode(RTCx);
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set Alarm Counter.
|
||
|
|
* @param RTCx RTC Instance
|
||
|
|
* @param AlarmCounter this value can be from 0 to 0xFFFFFFFF
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: RTC exited from in Init mode
|
||
|
|
* - ERROR: Not applicable
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_RTC_ALARM_SetCounter(RTC_TypeDef *RTCx, uint32_t AlarmCounter)
|
||
|
|
{
|
||
|
|
ErrorStatus status = ERROR;
|
||
|
|
/* Check the parameter */
|
||
|
|
assert_param(IS_RTC_ALL_INSTANCE(RTCx));
|
||
|
|
|
||
|
|
/* Enter Initialization mode */
|
||
|
|
if (LL_RTC_EnterInitMode(RTCx) != ERROR)
|
||
|
|
{
|
||
|
|
LL_RTC_ALARM_Set(RTCx, AlarmCounter);
|
||
|
|
status = SUCCESS;
|
||
|
|
}
|
||
|
|
/* Exit Initialization mode */
|
||
|
|
LL_RTC_ExitInitMode(RTCx);
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Waits until the RTC registers are synchronized with RTC APB clock.
|
||
|
|
* @note The RTC Resynchronization mode is write protected, use the
|
||
|
|
* @ref LL_RTC_DisableWriteProtection before calling this function.
|
||
|
|
* @param RTCx RTC Instance
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: RTC registers are synchronised
|
||
|
|
* - ERROR: RTC registers are not synchronised
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_RTC_WaitForSynchro(RTC_TypeDef *RTCx)
|
||
|
|
{
|
||
|
|
__IO uint32_t timeout = RTC_SYNCHRO_TIMEOUT;
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
uint32_t tmp = 0U;
|
||
|
|
|
||
|
|
/* Check the parameter */
|
||
|
|
assert_param(IS_RTC_ALL_INSTANCE(RTCx));
|
||
|
|
|
||
|
|
/* Clear RSF flag */
|
||
|
|
LL_RTC_ClearFlag_RS(RTCx);
|
||
|
|
|
||
|
|
/* Wait the registers to be synchronised */
|
||
|
|
tmp = LL_RTC_IsActiveFlag_RS(RTCx);
|
||
|
|
while ((timeout != 0U) && (tmp != 0U))
|
||
|
|
{
|
||
|
|
if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
|
||
|
|
{
|
||
|
|
timeout--;
|
||
|
|
}
|
||
|
|
tmp = LL_RTC_IsActiveFlag_RS(RTCx);
|
||
|
|
if (timeout == 0U)
|
||
|
|
{
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif /* defined(RTC) */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif /* USE_FULL_LL_DRIVER */
|
||
|
|
|
||
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|