1330 lines
39 KiB
C
1330 lines
39 KiB
C
/**
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******************************************************************************
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* @file stm32f2xx_hal_rtc_ex.c
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* @author MCD Application Team
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* @version V1.0.1
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* @date 25-March-2014
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* @brief RTC HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the Real Time Clock (RTC) Extension peripheral:
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* + RTC Time Stamp functions
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* + RTC Tamper functions
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* + RTC Wake-up functions
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* + Extension Control functions
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* + Extension RTC features functions
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*
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@verbatim
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==============================================================================
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##### How to use this driver #####
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==============================================================================
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[..]
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(+) Enable the RTC domain access.
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(+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour
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format using the HAL_RTC_Init() function.
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*** RTC Wakeup configuration ***
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================================
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[..]
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(+) To configure the RTC Wakeup Clock source and Counter use the HAL_RTC_SetWakeUpTimer()
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function. You can also configure the RTC Wakeup timer with interrupt mode
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using the HAL_RTC_SetWakeUpTimer_IT() function.
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(+) To read the RTC WakeUp Counter register, use the HAL_RTC_GetWakeUpTimer()
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function.
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*** TimeStamp configuration ***
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===============================
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[..]
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(+) Configure the RTC_AFx trigger and enables the RTC TimeStamp using the
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HAL_RTC_SetTimeStamp() function. You can also configure the RTC TimeStamp with
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interrupt mode using the HAL_RTC_SetTimeStamp_IT() function.
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(+) To read the RTC TimeStamp Time and Date register, use the HAL_RTC_GetTimeStamp()
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function.
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(+) The TIMESTAMP alternate function can be mapped either to RTC_AF1 (PC13)
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or RTC_AF2 (PI8) depending on the value of TSINSEL bit in
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RTC_TAFCR register. The corresponding pin is also selected by HAL_RTC_SetTimeStamp()
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or HAL_RTC_SetTimeStamp_IT() function.
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*** Tamper configuration ***
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============================
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[..]
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(+) Enable the RTC Tamper and Configure the Tamper filter count, trigger Edge
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or Level according to the Tamper filter (if equal to 0 Edge else Level)
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value, sampling frequency, precharge or discharge and Pull-UP using the
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HAL_RTC_SetTamper() function. You can configure RTC Tamper with interrupt
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mode using HAL_RTC_SetTamper_IT() function.
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(+) The TAMPER1 alternate function can be mapped either to RTC_AF1 (PC13)
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or RTC_AF2 (PI8) depending on the value of TAMP1INSEL bit in
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RTC_TAFCR register. The corresponding pin is also selected by HAL_RTC_SetTamper()
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or HAL_RTC_SetTamper_IT() function.
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*** Backup Data Registers configuration ***
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===========================================
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[..]
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(+) To write to the RTC Backup Data registers, use the HAL_RTC_BKUPWrite()
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function.
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(+) To read the RTC Backup Data registers, use the HAL_RTC_BKUPRead()
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function.
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2014 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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/* Includes ------------------------------------------------------------------*/
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#include "stm32f2xx_hal.h"
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/** @addtogroup STM32F2xx_HAL_Driver
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* @{
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*/
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/** @defgroup RTCEx
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* @brief RTC HAL module driver
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* @{
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*/
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#ifdef HAL_RTC_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/** @defgroup RTCEx_Private_Functions
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* @{
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*/
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/** @defgroup RTCEx_Group1 RTC TimeStamp and Tamper functions
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* @brief RTC TimeStamp and Tamper functions
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*
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@verbatim
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===============================================================================
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##### RTC TimeStamp and Tamper functions #####
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===============================================================================
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[..] This section provide functions allowing to configure TimeStamp feature
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@endverbatim
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* @{
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*/
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/**
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* @brief Sets TimeStamp.
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* @note This API must be called before enabling the TimeStamp feature.
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* @param hrtc: RTC handle
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* @param TimeStampEdge: Specifies the pin edge on which the TimeStamp is
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* activated.
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* This parameter can be one of the following:
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* @arg TimeStampEdge_Rising: the Time stamp event occurs on the
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* rising edge of the related pin.
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* @arg TimeStampEdge_Falling: the Time stamp event occurs on the
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* falling edge of the related pin.
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* @param RTC_TimeStampPin: specifies the RTC TimeStamp Pin.
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* This parameter can be one of the following values:
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* @arg RTC_TIMESTAMPPIN_PC13: PC13 is selected as RTC TimeStamp Pin.
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* @arg RTC_TIMESTAMPPIN_PI8: PI8 is selected as RTC TimeStamp Pin.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin)
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{
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uint32_t tmpreg = 0;
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/* Check the parameters */
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assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge));
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assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
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/* Process Locked */
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__HAL_LOCK(hrtc);
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hrtc->State = HAL_RTC_STATE_BUSY;
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/* Get the RTC_CR register and clear the bits to be configured */
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tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
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tmpreg|= TimeStampEdge;
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/* Disable the write protection for RTC registers */
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__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
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hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_TSINSEL;
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hrtc->Instance->TAFCR |= (uint32_t)(RTC_TimeStampPin);
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/* Configure the Time Stamp TSEDGE and Enable bits */
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hrtc->Instance->CR = (uint32_t)tmpreg;
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__HAL_RTC_TIMESTAMP_ENABLE(hrtc);
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/* Enable the write protection for RTC registers */
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__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
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/* Change RTC state */
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hrtc->State = HAL_RTC_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hrtc);
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return HAL_OK;
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}
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/**
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* @brief Sets TimeStamp with Interrupt.
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* @param hrtc: RTC handle
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* @note This API must be called before enabling the TimeStamp feature.
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* @param TimeStampEdge: Specifies the pin edge on which the TimeStamp is
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* activated.
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* This parameter can be one of the following:
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* @arg TimeStampEdge_Rising: the Time stamp event occurs on the
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* rising edge of the related pin.
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* @arg TimeStampEdge_Falling: the Time stamp event occurs on the
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* falling edge of the related pin.
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* @param RTC_TimeStampPin: Specifies the RTC TimeStamp Pin.
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* This parameter can be one of the following values:
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* @arg RTC_TIMESTAMPPIN_PC13: PC13 is selected as RTC TimeStamp Pin.
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* @arg RTC_TIMESTAMPPIN_PI8: PI8 is selected as RTC TimeStamp Pin.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp_IT(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin)
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{
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uint32_t tmpreg = 0;
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/* Check the parameters */
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assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge));
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assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
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/* Process Locked */
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__HAL_LOCK(hrtc);
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hrtc->State = HAL_RTC_STATE_BUSY;
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/* Get the RTC_CR register and clear the bits to be configured */
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tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
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tmpreg |= TimeStampEdge;
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/* Disable the write protection for RTC registers */
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__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
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/* Configure the Time Stamp TSEDGE and Enable bits */
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hrtc->Instance->CR = (uint32_t)tmpreg;
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hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_TSINSEL;
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hrtc->Instance->TAFCR |= (uint32_t)(RTC_TimeStampPin);
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__HAL_RTC_TIMESTAMP_ENABLE(hrtc);
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/* Enable IT timestamp */
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__HAL_RTC_TIMESTAMP_ENABLE_IT(hrtc,RTC_IT_TS);
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/* RTC timestamp Interrupt Configuration: EXTI configuration */
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__HAL_RTC_ENABLE_IT(RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT);
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EXTI->RTSR |= RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT;
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/* Enable the write protection for RTC registers */
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__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
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hrtc->State = HAL_RTC_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hrtc);
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return HAL_OK;
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}
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/**
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* @brief Deactivates TimeStamp.
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* @param hrtc: RTC handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_DeactivateTimeStamp(RTC_HandleTypeDef *hrtc)
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{
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uint32_t tmpreg = 0;
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/* Process Locked */
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__HAL_LOCK(hrtc);
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hrtc->State = HAL_RTC_STATE_BUSY;
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/* Disable the write protection for RTC registers */
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__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
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/* In case of interrupt mode is used, the interrupt source must disabled */
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__HAL_RTC_TIMESTAMP_DISABLE_IT(hrtc, RTC_IT_TS);
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/* Get the RTC_CR register and clear the bits to be configured */
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tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
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/* Configure the Time Stamp TSEDGE and Enable bits */
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hrtc->Instance->CR = (uint32_t)tmpreg;
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/* Enable the write protection for RTC registers */
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__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
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hrtc->State = HAL_RTC_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hrtc);
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return HAL_OK;
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}
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/**
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* @brief Gets the RTC TimeStamp value.
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* @param hrtc: RTC handle
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* @param sTimeStamp: Pointer to Time structure
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* @param sTimeStampDate: Pointer to Date structure
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* @param Format: specifies the format of the entered parameters.
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* This parameter can be one of the following values:
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* @arg Format_BIN: Binary data format
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* @arg Format_BCD: BCD data format
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_GetTimeStamp(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef* sTimeStamp, RTC_DateTypeDef* sTimeStampDate, uint32_t Format)
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{
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uint32_t tmptime = 0, tmpdate = 0;
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/* Check the parameters */
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assert_param(IS_RTC_FORMAT(Format));
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/* Get the TimeStamp time and date registers values */
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tmptime = (uint32_t)(hrtc->Instance->TSTR & RTC_TR_RESERVED_MASK);
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tmpdate = (uint32_t)(hrtc->Instance->TSDR & RTC_DR_RESERVED_MASK);
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/* Fill the Time structure fields with the read parameters */
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sTimeStamp->Hours = (uint8_t)((tmptime & (RTC_TR_HT | RTC_TR_HU)) >> 16);
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sTimeStamp->Minutes = (uint8_t)((tmptime & (RTC_TR_MNT | RTC_TR_MNU)) >> 8);
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sTimeStamp->Seconds = (uint8_t)(tmptime & (RTC_TR_ST | RTC_TR_SU));
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sTimeStamp->TimeFormat = (uint8_t)((tmptime & (RTC_TR_PM)) >> 16);
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/* Fill the Date structure fields with the read parameters */
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sTimeStampDate->Year = 0;
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sTimeStampDate->Month = (uint8_t)((tmpdate & (RTC_DR_MT | RTC_DR_MU)) >> 8);
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sTimeStampDate->Date = (uint8_t)(tmpdate & (RTC_DR_DT | RTC_DR_DU));
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sTimeStampDate->WeekDay = (uint8_t)((tmpdate & (RTC_DR_WDU)) >> 13);
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/* Check the input parameters format */
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if(Format == FORMAT_BIN)
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{
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/* Convert the TimeStamp structure parameters to Binary format */
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sTimeStamp->Hours = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Hours);
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sTimeStamp->Minutes = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Minutes);
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sTimeStamp->Seconds = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Seconds);
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/* Convert the DateTimeStamp structure parameters to Binary format */
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sTimeStampDate->Month = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->Month);
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sTimeStampDate->Date = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->Date);
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sTimeStampDate->WeekDay = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->WeekDay);
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}
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/* Clear the TIMESTAMP Flag */
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__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc, RTC_FLAG_TSF);
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return HAL_OK;
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}
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/**
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* @brief Sets Tamper
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* @note By calling this API we disable the tamper interrupt for all tampers.
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* @param hrtc: RTC handle
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* @param sTamper: Pointer to Tamper Structure.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_SetTamper(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef* sTamper)
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{
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uint32_t tmpreg = 0;
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/* Check the parameters */
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assert_param(IS_TAMPER(sTamper->Tamper));
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assert_param(IS_RTC_TAMPER_PIN(sTamper->PinSelection));
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assert_param(IS_TAMPER_TRIGGER(sTamper->Trigger));
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/* Process Locked */
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__HAL_LOCK(hrtc);
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hrtc->State = HAL_RTC_STATE_BUSY;
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tmpreg = ((uint32_t)sTamper->Tamper | (uint32_t)sTamper->PinSelection | (uint32_t)(sTamper->Trigger));
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hrtc->Instance->TAFCR &= (uint32_t)~((uint32_t)RTC_TAFCR_TAMP1E | (uint32_t)RTC_TAFCR_TAMP1TRG | (uint32_t)RTC_TAFCR_TAMPINSEL);
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hrtc->Instance->TAFCR |= tmpreg;
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hrtc->State = HAL_RTC_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hrtc);
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return HAL_OK;
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}
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/**
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* @brief Sets Tamper with interrupt.
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* @note By calling this API we force the tamper interrupt for all tampers.
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* @param hrtc: RTC handle
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* @param sTamper: Pointer to RTC Tamper.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_SetTamper_IT(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef* sTamper)
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{
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uint32_t tmpreg = 0;
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/* Check the parameters */
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assert_param(IS_TAMPER(sTamper->Tamper));
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assert_param(IS_RTC_TAMPER_PIN(sTamper->PinSelection));
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assert_param(IS_TAMPER_TRIGGER(sTamper->Trigger));
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/* Process Locked */
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__HAL_LOCK(hrtc);
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hrtc->State = HAL_RTC_STATE_BUSY;
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tmpreg = ((uint32_t)sTamper->Tamper | (uint32_t)sTamper->PinSelection | (uint32_t)sTamper->Trigger);
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hrtc->Instance->TAFCR &= (uint32_t)~((uint32_t)RTC_TAFCR_TAMP1E | (uint32_t)RTC_TAFCR_TAMP1TRG | (uint32_t)RTC_TAFCR_TAMPINSEL | (uint32_t)RTC_TAFCR_TAMPIE);
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hrtc->Instance->TAFCR |= tmpreg;
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/* Configure the Tamper Interrupt in the RTC_TAFCR */
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hrtc->Instance->TAFCR |= (uint32_t)RTC_TAFCR_TAMPIE;
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/* RTC Tamper Interrupt Configuration: EXTI configuration */
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__HAL_RTC_ENABLE_IT(RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT);
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EXTI->RTSR |= RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT;
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hrtc->State = HAL_RTC_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hrtc);
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return HAL_OK;
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}
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/**
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* @brief Deactivates Tamper.
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* @param hrtc: RTC handle
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* @param Tamper: Selected tamper pin.
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* This parameter can be RTC_Tamper_1 and/or RTC_TAMPER_2.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_RTCEx_DeactivateTamper(RTC_HandleTypeDef *hrtc, uint32_t Tamper)
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{
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assert_param(IS_TAMPER(Tamper));
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/* Process Locked */
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__HAL_LOCK(hrtc);
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hrtc->State = HAL_RTC_STATE_BUSY;
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/* Disable the selected Tamper pin */
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hrtc->Instance->TAFCR &= (uint32_t)~Tamper;
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hrtc->State = HAL_RTC_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hrtc);
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return HAL_OK;
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}
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/**
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* @brief This function handles TimeStamp interrupt request.
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* @param hrtc: RTC handle
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* @retval None
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*/
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void HAL_RTCEx_TamperTimeStampIRQHandler(RTC_HandleTypeDef *hrtc)
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{
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if(__HAL_RTC_TIMESTAMP_GET_IT(hrtc, RTC_IT_TS))
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{
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/* Get the status of the Interrupt */
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if((uint32_t)(hrtc->Instance->CR & RTC_IT_TS) != (uint32_t)RESET)
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{
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/* TIMESTAMP callback */
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HAL_RTCEx_TimeStampEventCallback(hrtc);
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|
|
|
/* Clear the TIMESTAMP interrupt pending bit */
|
|
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc,RTC_FLAG_TSF);
|
|
}
|
|
}
|
|
|
|
/* Get the status of the Interrupt */
|
|
if(__HAL_RTC_TAMPER_GET_IT(hrtc,RTC_IT_TAMP1))
|
|
{
|
|
/* Get the TAMPER Interrupt enable bit and pending bit */
|
|
if(((hrtc->Instance->TAFCR & (RTC_TAFCR_TAMPIE))) != (uint32_t)RESET)
|
|
{
|
|
/* Tamper callback */
|
|
HAL_RTCEx_Tamper1EventCallback(hrtc);
|
|
|
|
/* Clear the Tamper interrupt pending bit */
|
|
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc,RTC_FLAG_TAMP1F);
|
|
}
|
|
}
|
|
|
|
/* Clear the EXTI's Flag for RTC TimeStamp and Tamper */
|
|
__HAL_RTC_CLEAR_FLAG(RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
}
|
|
|
|
/**
|
|
* @brief TimeStamp callback.
|
|
* @param hrtc: RTC handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_RTCEx_TimeStampEventCallback(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
|
the HAL_RTC_TimeStampEventCallback could be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @brief Tamper 1 callback.
|
|
* @param hrtc: RTC handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_RTCEx_Tamper1EventCallback(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
|
the HAL_RTC_Tamper1EventCallback could be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles TimeStamp polling request.
|
|
* @param hrtc: RTC handle
|
|
* @param Timeout: Timeout duration
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_PollForTimeStampEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Get Timeout value */
|
|
timeout = HAL_GetTick() + Timeout;
|
|
|
|
while(__HAL_RTC_TIMESTAMP_GET_FLAG(hrtc, RTC_FLAG_TSF) == RESET)
|
|
{
|
|
if(__HAL_RTC_TIMESTAMP_GET_FLAG(hrtc, RTC_FLAG_TSOVF) != RESET)
|
|
{
|
|
/* Clear the TIMESTAMP OverRun Flag */
|
|
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc, RTC_FLAG_TSOVF);
|
|
|
|
/* Change TIMESTAMP state */
|
|
hrtc->State = HAL_RTC_STATE_ERROR;
|
|
|
|
return HAL_ERROR;
|
|
}
|
|
|
|
if(Timeout != HAL_MAX_DELAY)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles Tamper1 Polling.
|
|
* @param hrtc: RTC handle
|
|
* @param Timeout: Timeout duration
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_PollForTamper1Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Get Timeout value */
|
|
timeout = HAL_GetTick() + Timeout;
|
|
|
|
/* Get the status of the Interrupt */
|
|
while(__HAL_RTC_TAMPER_GET_FLAG(hrtc, RTC_FLAG_TAMP1F)== RESET)
|
|
{
|
|
if(Timeout != HAL_MAX_DELAY)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Clear the Tamper Flag */
|
|
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc,RTC_FLAG_TAMP1F);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup RTCEx_Group2 RTC Wake-up functions
|
|
* @brief RTC Wake-up functions
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### RTC Wake-up functions #####
|
|
===============================================================================
|
|
|
|
[..] This section provide functions allowing to configure Wake-up feature
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Sets wake up timer.
|
|
* @param hrtc: RTC handle
|
|
* @param WakeUpCounter: Wake up counter
|
|
* @param WakeUpClock: Wake up clock
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_WAKEUP_CLOCK(WakeUpClock));
|
|
assert_param(IS_WAKEUP_COUNTER(WakeUpCounter));
|
|
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc);
|
|
|
|
timeout = HAL_GetTick() + RTC_TIMEOUT_VALUE;
|
|
|
|
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
|
|
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
|
|
/* Clear the Wakeup Timer clock source bits in CR register */
|
|
hrtc->Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL;
|
|
|
|
/* Configure the clock source */
|
|
hrtc->Instance->CR |= (uint32_t)WakeUpClock;
|
|
|
|
/* Configure the Wakeup Timer counter */
|
|
hrtc->Instance->WUTR = (uint32_t)WakeUpCounter;
|
|
|
|
/* Enable the Wakeup Timer */
|
|
__HAL_RTC_WAKEUPTIMER_ENABLE(hrtc);
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Sets wake up timer with interrupt
|
|
* @param hrtc: RTC handle
|
|
* @param WakeUpCounter: wake up counter
|
|
* @param WakeUpClock: wake up clock
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer_IT(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_WAKEUP_CLOCK(WakeUpClock));
|
|
assert_param(IS_WAKEUP_COUNTER(WakeUpCounter));
|
|
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc);
|
|
|
|
timeout = HAL_GetTick() + RTC_TIMEOUT_VALUE;
|
|
|
|
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
|
|
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
|
|
/* Configure the Wakeup Timer counter */
|
|
hrtc->Instance->WUTR = (uint32_t)WakeUpCounter;
|
|
|
|
/* Clear the Wakeup Timer clock source bits in CR register */
|
|
hrtc->Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL;
|
|
|
|
/* Configure the clock source */
|
|
hrtc->Instance->CR |= (uint32_t)WakeUpClock;
|
|
|
|
/* RTC WakeUpTimer Interrupt Configuration: EXTI configuration */
|
|
__HAL_RTC_ENABLE_IT(RTC_EXTI_LINE_WAKEUPTIMER_EVENT);
|
|
|
|
EXTI->RTSR |= RTC_EXTI_LINE_WAKEUPTIMER_EVENT;
|
|
|
|
/* Configure the Interrupt in the RTC_CR register */
|
|
__HAL_RTC_WAKEUPTIMER_ENABLE_IT(hrtc,RTC_IT_WUT);
|
|
|
|
/* Enable the Wakeup Timer */
|
|
__HAL_RTC_WAKEUPTIMER_ENABLE(hrtc);
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Deactivates wake up timer counter.
|
|
* @param hrtc: RTC handle
|
|
* @retval HAL status
|
|
*/
|
|
uint32_t HAL_RTCEx_DeactivateWakeUpTimer(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
/* Disable the Wakeup Timer */
|
|
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc);
|
|
|
|
/* In case of interrupt mode is used, the interrupt source must disabled */
|
|
__HAL_RTC_WAKEUPTIMER_DISABLE_IT(hrtc,RTC_IT_WUT);
|
|
|
|
timeout = HAL_GetTick() + RTC_TIMEOUT_VALUE;
|
|
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
|
|
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Gets wake up timer counter.
|
|
* @param hrtc: RTC handle
|
|
* @retval Counter value
|
|
*/
|
|
uint32_t HAL_RTCEx_GetWakeUpTimer(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
/* Get the counter value */
|
|
return ((uint32_t)(hrtc->Instance->WUTR & RTC_WUTR_WUT));
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles Wake Up Timer interrupt request.
|
|
* @param hrtc: RTC handle
|
|
* @retval None
|
|
*/
|
|
void HAL_RTCEx_WakeUpTimerIRQHandler(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
if(__HAL_RTC_WAKEUPTIMER_GET_IT(hrtc, RTC_IT_WUT))
|
|
{
|
|
/* Get the status of the Interrupt */
|
|
if((uint32_t)(hrtc->Instance->CR & RTC_IT_WUT) != (uint32_t)RESET)
|
|
{
|
|
/* WAKEUPTIMER callback */
|
|
HAL_RTCEx_WakeUpTimerEventCallback(hrtc);
|
|
|
|
/* Clear the WAKEUPTIMER interrupt pending bit */
|
|
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(hrtc, RTC_FLAG_WUTF);
|
|
}
|
|
}
|
|
|
|
/* Clear the EXTI's line Flag for RTC WakeUpTimer */
|
|
__HAL_RTC_CLEAR_FLAG(RTC_EXTI_LINE_WAKEUPTIMER_EVENT);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
}
|
|
|
|
/**
|
|
* @brief Wake Up Timer callback.
|
|
* @param hrtc: RTC handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
|
the HAL_RTC_WakeUpTimerEventCallback could be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles Wake Up Timer Polling.
|
|
* @param hrtc: RTC handle
|
|
* @param Timeout: Timeout duration
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_PollForWakeUpTimerEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Get Timeout value */
|
|
timeout = HAL_GetTick() + Timeout;
|
|
|
|
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTF) == RESET)
|
|
{
|
|
if(Timeout != HAL_MAX_DELAY)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Clear the WAKEUPTIMER Flag */
|
|
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(hrtc, RTC_FLAG_WUTF);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup RTCEx_Group3 Extension Peripheral Control functions
|
|
* @brief Extension Peripheral Control functions
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Extension Peripheral Control functions #####
|
|
===============================================================================
|
|
[..]
|
|
This subsection provides functions allowing to
|
|
(+) Writes a data in a specified RTC Backup data register
|
|
(+) Read a data in a specified RTC Backup data register
|
|
(+) Sets the Coarse calibration parameters.
|
|
(+) Deactivates the Coarse calibration parameters
|
|
(+) Sets the Smooth calibration parameters.
|
|
(+) Configures the Synchronization Shift Control Settings.
|
|
(+) Configures the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
|
|
(+) Deactivates the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
|
|
(+) Enables the RTC reference clock detection.
|
|
(+) Disable the RTC reference clock detection.
|
|
(+) Enables the Bypass Shadow feature.
|
|
(+) Disables the Bypass Shadow feature.
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Writes a data in a specified RTC Backup data register.
|
|
* @param hrtc: RTC handle
|
|
* @param BackupRegister: RTC Backup data Register number.
|
|
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
|
|
* specify the register.
|
|
* @param Data: Data to be written in the specified RTC Backup data register.
|
|
* @retval None
|
|
*/
|
|
void HAL_RTCEx_BKUPWrite(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister, uint32_t Data)
|
|
{
|
|
uint32_t tmp = 0;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_RTC_BKP(BackupRegister));
|
|
|
|
tmp = (uint32_t)&(hrtc->Instance->BKP0R);
|
|
tmp += (BackupRegister * 4);
|
|
|
|
/* Write the specified register */
|
|
*(__IO uint32_t *)tmp = (uint32_t)Data;
|
|
}
|
|
|
|
/**
|
|
* @brief Reads data from the specified RTC Backup data Register.
|
|
* @param hrtc: RTC handle
|
|
* @param BackupRegister: 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 Read value
|
|
*/
|
|
uint32_t HAL_RTCEx_BKUPRead(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister)
|
|
{
|
|
uint32_t tmp = 0;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_RTC_BKP(BackupRegister));
|
|
|
|
tmp = (uint32_t)&(hrtc->Instance->BKP0R);
|
|
tmp += (BackupRegister * 4);
|
|
|
|
/* Read the specified register */
|
|
return (*(__IO uint32_t *)tmp);
|
|
}
|
|
|
|
/**
|
|
* @brief Sets the Coarse calibration parameters.
|
|
* @param hrtc: RTC handle
|
|
* @param CalibSign: Specifies the sign of the coarse calibration value.
|
|
* This parameter can be one of the following values :
|
|
* @arg RTC_CALIBSIGN_POSITIVE: The value sign is positive
|
|
* @arg RTC_CALIBSIGN_NEGATIVE: The value sign is negative
|
|
* @param Value: value of coarse calibration expressed in ppm (coded on 5 bits).
|
|
*
|
|
* @note This Calibration value should be between 0 and 63 when using negative
|
|
* sign with a 2-ppm step.
|
|
*
|
|
* @note This Calibration value should be between 0 and 126 when using positive
|
|
* sign with a 4-ppm step.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_SetCoarseCalib(RTC_HandleTypeDef* hrtc, uint32_t CalibSign, uint32_t Value)
|
|
{
|
|
/* Check the parameters */
|
|
assert_param(IS_RTC_CALIB_SIGN(CalibSign));
|
|
assert_param(IS_RTC_CALIB_VALUE(Value));
|
|
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
/* Set Initialization mode */
|
|
if(RTC_EnterInitMode(hrtc) != HAL_OK)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Set RTC state*/
|
|
hrtc->State = HAL_RTC_STATE_ERROR;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_ERROR;
|
|
}
|
|
else
|
|
{
|
|
/* Enable the Coarse Calibration */
|
|
__HAL_RTC_COARSE_CALIB_ENABLE(hrtc);
|
|
|
|
/* Set the coarse calibration value */
|
|
hrtc->Instance->CALIBR = (uint32_t)(CalibSign|Value);
|
|
|
|
/* Exit Initialization mode */
|
|
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
|
|
}
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Change state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Deactivates the Coarse calibration parameters.
|
|
* @param hrtc: RTC handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_DeactivateCoarseCalib(RTC_HandleTypeDef* hrtc)
|
|
{
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
/* Set Initialization mode */
|
|
if(RTC_EnterInitMode(hrtc) != HAL_OK)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Set RTC state*/
|
|
hrtc->State = HAL_RTC_STATE_ERROR;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_ERROR;
|
|
}
|
|
else
|
|
{
|
|
/* Enable the Coarse Calibration */
|
|
__HAL_RTC_COARSE_CALIB_DISABLE(hrtc);
|
|
|
|
/* Exit Initialization mode */
|
|
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
|
|
}
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Change state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the Calibration Pinout (RTC_CALIB).
|
|
* @param hrtc : RTC handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_SetCalibrationOutPut(RTC_HandleTypeDef* hrtc)
|
|
{
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
__HAL_RTC_CALIBRATION_OUTPUT_ENABLE(hrtc);
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Deactivates the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
|
|
* @param hrtc: RTC handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_DeactivateCalibrationOutPut(RTC_HandleTypeDef* hrtc)
|
|
{
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
__HAL_RTC_CALIBRATION_OUTPUT_DISABLE(hrtc);
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Enables the RTC reference clock detection.
|
|
* @param hrtc: RTC handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_SetRefClock(RTC_HandleTypeDef* hrtc)
|
|
{
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
/* Set Initialization mode */
|
|
if(RTC_EnterInitMode(hrtc) != HAL_OK)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Set RTC state*/
|
|
hrtc->State = HAL_RTC_STATE_ERROR;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_ERROR;
|
|
}
|
|
else
|
|
{
|
|
__HAL_RTC_CLOCKREF_DETECTION_ENABLE(hrtc);
|
|
|
|
/* Exit Initialization mode */
|
|
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
|
|
}
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the RTC reference clock detection.
|
|
* @param hrtc: RTC handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_DeactivateRefClock(RTC_HandleTypeDef* hrtc)
|
|
{
|
|
/* Process Locked */
|
|
__HAL_LOCK(hrtc);
|
|
|
|
hrtc->State = HAL_RTC_STATE_BUSY;
|
|
|
|
/* Disable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
|
|
|
|
/* Set Initialization mode */
|
|
if(RTC_EnterInitMode(hrtc) != HAL_OK)
|
|
{
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Set RTC state*/
|
|
hrtc->State = HAL_RTC_STATE_ERROR;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_ERROR;
|
|
}
|
|
else
|
|
{
|
|
__HAL_RTC_CLOCKREF_DETECTION_DISABLE(hrtc);
|
|
|
|
/* Exit Initialization mode */
|
|
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
|
|
}
|
|
|
|
/* Enable the write protection for RTC registers */
|
|
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
/* Process Unlocked */
|
|
__HAL_UNLOCK(hrtc);
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup RTCEx_Group4 Extended features functions
|
|
* @brief Extended features functions
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Extended features functions #####
|
|
===============================================================================
|
|
[..] This section provides functions allowing to:
|
|
(+) RTC Alram B callback
|
|
(+) RTC Poll for Alarm B request
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Alarm B callback.
|
|
* @param hrtc: RTC handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_RTCEx_AlarmBEventCallback(RTC_HandleTypeDef *hrtc)
|
|
{
|
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
|
the HAL_RTC_AlarmBEventCallback could be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @brief This function handles AlarmB Polling request.
|
|
* @param hrtc: RTC handle
|
|
* @param Timeout: Timeout duration
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_RTCEx_PollForAlarmBEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
|
|
{
|
|
uint32_t timeout = 0;
|
|
|
|
/* Get Timeout value */
|
|
timeout = HAL_GetTick() + Timeout;
|
|
|
|
while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBF) == RESET)
|
|
{
|
|
if(Timeout != HAL_MAX_DELAY)
|
|
{
|
|
if(HAL_GetTick() >= timeout)
|
|
{
|
|
hrtc->State = HAL_RTC_STATE_TIMEOUT;
|
|
return HAL_TIMEOUT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Clear the Alarm Flag */
|
|
__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
|
|
|
|
/* Change RTC state */
|
|
hrtc->State = HAL_RTC_STATE_READY;
|
|
|
|
return HAL_OK;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* HAL_RTC_MODULE_ENABLED */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|