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/**
******************************************************************************
* @file stm32l5xx_hal_rtc_ex.c
* @author MCD Application Team
* @brief Extended RTC HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Real Time Clock (RTC) Extended peripheral:
* + RTC Time Stamp functions
* + RTC Tamper functions
* + RTC Wake-up functions
* + Extended Control functions
* + Extended RTC features functions
*
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
(+) Enable the RTC domain access.
(+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour
format using the HAL_RTC_Init() function.
*** RTC Wakeup configuration ***
================================
[..]
(+) To configure the RTC Wakeup Clock source and Counter use the HAL_RTCEx_SetWakeUpTimer()
function. You can also configure the RTC Wakeup timer with interrupt mode
using the HAL_RTCEx_SetWakeUpTimer_IT() function.
(+) To read the RTC WakeUp Counter register, use the HAL_RTCEx_GetWakeUpTimer()
function.
*** Outputs configuration ***
=============================
[..] The RTC has 2 different outputs:
(+) RTC_ALARM: this output is used to manage the RTC Alarm A, Alarm B
and WaKeUp signals.
To output the selected RTC signal, use the HAL_RTC_Init() function.
(+) RTC_CALIB: this output is 512Hz signal or 1Hz.
To enable the RTC_CALIB, use the HAL_RTCEx_SetCalibrationOutPut() function.
(+) Two pins can be used as RTC_ALARM or RTC_CALIB (PC13, PB2) managed on
the RTC_OR register.
(+) When the RTC_CALIB or RTC_ALARM output is selected, the RTC_OUT pin is
automatically configured in output alternate function.
*** Smooth digital Calibration configuration ***
================================================
[..]
(+) Configure the RTC Original Digital Calibration Value and the corresponding
calibration cycle period (32s,16s and 8s) using the HAL_RTCEx_SetSmoothCalib()
function.
*** TimeStamp configuration ***
===============================
[..]
(+) Enable the RTC TimeStamp using the HAL_RTCEx_SetTimeStamp() function.
You can also configure the RTC TimeStamp with interrupt mode using the
HAL_RTCEx_SetTimeStamp_IT() function.
(+) To read the RTC TimeStamp Time and Date register, use the HAL_RTCEx_GetTimeStamp()
function.
*** Internal TimeStamp configuration ***
===============================
[..]
(+) Enable the RTC internal TimeStamp using the HAL_RTCEx_SetInternalTimeStamp() function.
User has to check internal timestamp occurrence using __HAL_RTC_INTERNAL_TIMESTAMP_GET_FLAG.
(+) To read the RTC TimeStamp Time and Date register, use the HAL_RTCEx_GetTimeStamp()
function.
*** Tamper configuration ***
============================
[..]
(+) Enable the RTC Tamper and configure the Tamper filter count, trigger Edge
or Level according to the Tamper filter (if equal to 0 Edge else Level)
value, sampling frequency, NoErase, MaskFlag, precharge or discharge and
Pull-UP using the HAL_RTCEx_SetTamper() function. You can configure RTC Tamper
with interrupt mode using HAL_RTCEx_SetTamper_IT() function.
(+) The default configuration of the Tamper erases the backup registers. To avoid
erase, enable the NoErase field on the RTC_TAMPCR register.
(+) With new RTC tamper configuration, you have to call HAL_RTC_Init() in order to
perform TAMP base address offset calculation.
(+) If you do not intend to have tamper using RTC clock, you can bypass its initialization
by setting ClockEnable inti field to RTC_CLOCK_DISABLE.
(+) Enable Internal tamper using HAL_RTCEx_SetInternalTamper. IT mode can be chosen using
setting Interrupt field.
*** Backup Data Registers configuration ***
===========================================
[..]
(+) To write to the RTC Backup Data registers, use the HAL_RTCEx_BKUPWrite()
function.
(+) To read the RTC Backup Data registers, use the HAL_RTCEx_BKUPRead()
function.
(+) Before calling these functions you have to call HAL_RTC_Init() in order to
perform TAMP base address offset calculation.
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l5xx_hal.h"
/** @addtogroup STM32L5xx_HAL_Driver
* @{
*/
/** @addtogroup RTCEx
* @brief RTC Extended HAL module driver
* @{
*/
#ifdef HAL_RTC_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define TAMP_ALL (TAMP_CR1_TAMP1E | TAMP_CR1_TAMP2E | TAMP_CR1_TAMP3E | TAMP_CR1_TAMP4E | \
TAMP_CR1_TAMP5E | TAMP_CR1_TAMP6E | TAMP_CR1_TAMP7E | TAMP_CR1_TAMP8E)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup RTCEx_Exported_Functions
* @{
*/
/** @addtogroup RTCEx_Exported_Functions_Group1
* @brief RTC TimeStamp and Tamper functions
*
@verbatim
===============================================================================
##### RTC TimeStamp and Tamper functions #####
===============================================================================
[..] This section provides functions allowing to configure TimeStamp feature
@endverbatim
* @{
*/
/**
* @brief Set TimeStamp.
* @note This API must be called before enabling the TimeStamp feature.
* @param hrtc RTC handle
* @param TimeStampEdge Specifies the pin edge on which the TimeStamp is
* activated.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPEDGE_RISING: the Time stamp event occurs on the
* rising edge of the related pin.
* @arg RTC_TIMESTAMPEDGE_FALLING: the Time stamp event occurs on the
* falling edge of the related pin.
* @param RTC_TimeStampPin specifies the RTC TimeStamp Pin.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as RTC TimeStamp Pin.
* The RTC TimeStamp Pin is per default PC13, but for reasons of
* compatibility, this parameter is required.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin)
{
/* Check the parameters */
assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge));
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
UNUSED(RTC_TimeStampPin);
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Get the RTC_CR register and clear the bits to be configured */
CLEAR_BIT(RTC->CR, (RTC_CR_TSEDGE | RTC_CR_TSE));
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Configure the Time Stamp TSEDGE and Enable bits */
SET_BIT(RTC->CR, (uint32_t)TimeStampEdge | RTC_CR_TSE);
/* 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 Set TimeStamp with Interrupt.
* @note This API must be called before enabling the TimeStamp feature.
* @param hrtc RTC handle
* @param TimeStampEdge Specifies the pin edge on which the TimeStamp is
* activated.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPEDGE_RISING: the Time stamp event occurs on the
* rising edge of the related pin.
* @arg RTC_TIMESTAMPEDGE_FALLING: the Time stamp event occurs on the
* falling edge of the related pin.
* @param RTC_TimeStampPin Specifies the RTC TimeStamp Pin.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as RTC TimeStamp Pin.
* The RTC TimeStamp Pin is per default PC13, but for reasons of
* compatibility, this parameter is required.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp_IT(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin)
{
/* Check the parameters */
assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge));
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
UNUSED(RTC_TimeStampPin);
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* RTC timestamp Interrupt Configuration: EXTI configuration */
__HAL_RTC_TIMESTAMP_EXTI_ENABLE_IT();
/* Get the RTC_CR register and clear the bits to be configured */
CLEAR_BIT(RTC->CR, (RTC_CR_TSEDGE | RTC_CR_TSE));
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Configure the Time Stamp TSEDGE before Enable bit to avoid unwanted TSF setting. */
SET_BIT(RTC->CR, (uint32_t)TimeStampEdge);
/* Enable timestamp and IT */
SET_BIT(RTC->CR, RTC_CR_TSE | RTC_CR_TSIE);
/* 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 Deactivate TimeStamp.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateTimeStamp(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);
/* In case of interrupt mode is used, the interrupt source must disabled */
CLEAR_BIT(RTC->CR, (RTC_CR_TSEDGE | RTC_CR_TSE | RTC_CR_TSIE));
/* 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 Set Internal TimeStamp.
* @note This API must be called before enabling the internal TimeStamp feature.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetInternalTimeStamp(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);
/* Configure the internal Time Stamp Enable bits */
SET_BIT(RTC->CR, RTC_CR_ITSE);
/* 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 Deactivate Internal TimeStamp.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateInternalTimeStamp(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);
/* Configure the internal Time Stamp Enable bits */
CLEAR_BIT(RTC->CR, RTC_CR_ITSE);
/* 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 Get the RTC TimeStamp value.
* @param hrtc RTC handle
* @param sTimeStamp Pointer to Time structure
* @param sTimeStampDate Pointer to Date structure
* @param Format specifies the format of the entered parameters.
* This parameter can be one of the following values:
* @arg RTC_FORMAT_BIN: Binary data format
* @arg RTC_FORMAT_BCD: BCD data format
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_GetTimeStamp(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTimeStamp, RTC_DateTypeDef *sTimeStampDate, uint32_t Format)
{
uint32_t tmptime, tmpdate;
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_FORMAT(Format));
/* Get the TimeStamp time and date registers values */
tmptime = READ_BIT(RTC->TSTR, RTC_TR_RESERVED_MASK);
tmpdate = READ_BIT(RTC->TSDR, RTC_DR_RESERVED_MASK);
/* Fill the Time structure fields with the read parameters */
sTimeStamp->Hours = (uint8_t)((tmptime & (RTC_TSTR_HT | RTC_TSTR_HU)) >> RTC_TSTR_HU_Pos);
sTimeStamp->Minutes = (uint8_t)((tmptime & (RTC_TSTR_MNT | RTC_TSTR_MNU)) >> RTC_TSTR_MNU_Pos);
sTimeStamp->Seconds = (uint8_t)((tmptime & (RTC_TSTR_ST | RTC_TSTR_SU)) >> RTC_TSTR_SU_Pos);
sTimeStamp->TimeFormat = (uint8_t)((tmptime & (RTC_TSTR_PM)) >> RTC_TSTR_PM_Pos);
sTimeStamp->SubSeconds = READ_BIT(RTC->TSSSR, RTC_TSSSR_SS);
/* Fill the Date structure fields with the read parameters */
sTimeStampDate->Year = 0U;
sTimeStampDate->Month = (uint8_t)((tmpdate & (RTC_TSDR_MT | RTC_TSDR_MU)) >> RTC_TSDR_MU_Pos);
sTimeStampDate->Date = (uint8_t)(tmpdate & (RTC_TSDR_DT | RTC_TSDR_DU));
sTimeStampDate->WeekDay = (uint8_t)((tmpdate & (RTC_TSDR_WDU)) >> RTC_TSDR_WDU_Pos);
/* Check the input parameters format */
if (Format == RTC_FORMAT_BIN)
{
/* Convert the TimeStamp structure parameters to Binary format */
sTimeStamp->Hours = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Hours);
sTimeStamp->Minutes = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Minutes);
sTimeStamp->Seconds = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Seconds);
/* Convert the DateTimeStamp structure parameters to Binary format */
sTimeStampDate->Month = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->Month);
sTimeStampDate->Date = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->Date);
sTimeStampDate->WeekDay = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->WeekDay);
}
/* Clear the TIMESTAMP Flags */
WRITE_REG(RTC->SCR, (RTC_SCR_CITSF | RTC_SCR_CTSF));
return HAL_OK;
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
/**
* @brief Handle TimeStamp secure interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTCEx_TimeStampIRQHandler(RTC_HandleTypeDef *hrtc)
{
if (READ_BIT(RTC->SMISR, RTC_SMISR_TSMF) != 0U)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call TimeStampEvent registered Callback */
hrtc->TimeStampEventCallback(hrtc);
#else
HAL_RTCEx_TimeStampEventCallback(hrtc);
#endif
/* Clearing flags after the Callback because the content of RTC_TSTR and RTC_TSDR are cleared when TSF bit is reset.*/
WRITE_REG(RTC->SCR, RTC_SCR_CITSF | RTC_SCR_CTSF);
}
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
}
#else /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @brief Handle TimeStamp non-secure interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTCEx_TimeStampIRQHandler(RTC_HandleTypeDef *hrtc)
{
if (READ_BIT(RTC->MISR, RTC_MISR_TSMF) != 0U)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call TimeStampEvent registered Callback */
hrtc->TimeStampEventCallback(hrtc);
#else
HAL_RTCEx_TimeStampEventCallback(hrtc);
#endif
/* Clearing flags after the Callback because the content of RTC_TSTR and RTC_TSDR are cleared when TSF bit is reset.*/
WRITE_REG(RTC->SCR, RTC_SCR_CITSF | RTC_SCR_CTSF);
}
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
}
#endif /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @brief TimeStamp callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_TimeStampEventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_TimeStampEventCallback could be implemented in the user file
*/
}
/**
* @brief Handle 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 tickstart = HAL_GetTick();
while (READ_BIT(RTC->SR, RTC_SR_TSF) == 0U)
{
if (READ_BIT(RTC->SR, RTC_SR_TSOVF) != 0U)
{
/* Clear the TIMESTAMP OverRun Flag */
WRITE_REG(RTC->SCR, RTC_SCR_CTSOVF);
/* Change TIMESTAMP state */
hrtc->State = HAL_RTC_STATE_ERROR;
return HAL_ERROR;
}
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
hrtc->State = HAL_RTC_STATE_TIMEOUT;
return HAL_TIMEOUT;
}
}
}
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
return HAL_OK;
}
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group2
* @brief RTC Wake-up functions
*
@verbatim
===============================================================================
##### RTC Wake-up functions #####
===============================================================================
[..] This section provides functions allowing to configure Wake-up feature
@endverbatim
* @{
*/
/**
* @brief Set 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 tickstart;
/* Check the parameters */
assert_param(IS_RTC_WAKEUP_CLOCK(WakeUpClock));
assert_param(IS_RTC_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);
/* Clear WUTE in RTC_CR to disable the wakeup timer */
CLEAR_BIT(RTC->CR, RTC_CR_WUTE);
/* Poll WUTWF until it is set in RTC_ICSR to make sure the access to wakeup autoreload
counter and to WUCKSEL[2:0] bits is allowed. This step must be skipped in
calendar initialization mode. */
if (READ_BIT(RTC->ICSR, RTC_ICSR_INITF) == 0U)
{
tickstart = HAL_GetTick();
while (READ_BIT(RTC->ICSR, RTC_ICSR_WUTWF) == 0U)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
/* 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 clock source */
MODIFY_REG(RTC->CR, RTC_CR_WUCKSEL, (uint32_t)WakeUpClock);
/* Configure the Wakeup Timer counter */
WRITE_REG(RTC->WUTR, (uint32_t)WakeUpCounter);
/* Enable the Wakeup Timer */
SET_BIT(RTC->CR, RTC_CR_WUTE);
/* 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 Set wake up timer with interrupt.
* @param hrtc RTC handle
* @param WakeUpCounter Wake up counter
* @param WakeUpClock Wake up clock
* @param WakeUpAutoClr Wake up auto clear value (look at WUTOCLR in reference manual)
* - No effect if WakeUpAutoClr is set to zero
* - This feature is meaningful in case of Low power mode to avoid any RTC software execution after Wake Up.
* That is why when WakeUpAutoClr is set, EXTI is configured as EVENT instead of Interrupt to avoid useless IRQ handler execution.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer_IT(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock, uint32_t WakeUpAutoClr)
{
uint32_t tickstart;
/* Check the parameters */
assert_param(IS_RTC_WAKEUP_CLOCK(WakeUpClock));
assert_param(IS_RTC_WAKEUP_COUNTER(WakeUpCounter));
/* (0x0000<=WUTOCLR<=WUT) */
assert_param(WakeUpAutoClr <= WakeUpCounter);
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Clear WUTE in RTC_CR to disable the wakeup timer */
CLEAR_BIT(RTC->CR, RTC_CR_WUTE);
/* Clear flag Wake-Up */
WRITE_REG(RTC->SCR, RTC_SCR_CWUTF);
/* Poll WUTWF until it is set in RTC_ICSR to make sure the access to wakeup autoreload
counter and to WUCKSEL[2:0] bits is allowed. This step must be skipped in
calendar initialization mode. */
if (READ_BIT(RTC->ICSR, RTC_ICSR_INITF) == 0U)
{
tickstart = HAL_GetTick();
while (READ_BIT(RTC->ICSR, RTC_ICSR_WUTWF) == 0U)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
/* 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 and auto clear value */
WRITE_REG(RTC->WUTR, (uint32_t)(WakeUpCounter | (WakeUpAutoClr << RTC_WUTR_WUTOCLR_Pos)));
/* Configure the clock source */
MODIFY_REG(RTC->CR, RTC_CR_WUCKSEL, (uint32_t)WakeUpClock);
/* In case of WUT autoclr, the IRQ handler should not be called */
if (WakeUpAutoClr != 0U)
{
/* RTC WakeUpTimer EXTI Configuration: Event configuration */
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_EVENT();
}
else
{
/* RTC WakeUpTimer EXTI Configuration: Interrupt configuration */
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_IT();
}
/* Configure the Interrupt in the RTC_CR register and Enable the Wakeup Timer*/
SET_BIT(RTC->CR, (RTC_CR_WUTIE | RTC_CR_WUTE));
/* 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 Deactivate wake up timer counter.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateWakeUpTimer(RTC_HandleTypeDef *hrtc)
{
uint32_t tickstart;
/* 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 */
/* In case of interrupt mode is used, the interrupt source must disabled */
CLEAR_BIT(RTC->CR, (RTC_CR_WUTE | RTC_CR_WUTIE));
tickstart = HAL_GetTick();
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
while (READ_BIT(RTC->ICSR, RTC_ICSR_WUTWF) == 0U)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
/* 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 Get wake up timer counter.
* @param hrtc RTC handle
* @retval Counter value
*/
uint32_t HAL_RTCEx_GetWakeUpTimer(RTC_HandleTypeDef *hrtc)
{
UNUSED(hrtc);
/* Get the counter value */
return (uint32_t)(READ_BIT(RTC->WUTR, RTC_WUTR_WUT));
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
/**
* @brief Handle Wake Up Timer secure interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTCEx_WakeUpTimerIRQHandler(RTC_HandleTypeDef *hrtc)
{
if ((RTC->SMISR & RTC_SMISR_WUTMF) != 0u)
{
/* Immediately clear flags */
WRITE_REG(RTC->SCR, RTC_SCR_CWUTF);
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call wake up timer registered Callback */
hrtc->WakeUpTimerEventCallback(hrtc);
#else
HAL_RTCEx_WakeUpTimerEventCallback(hrtc);
#endif
}
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
}
#else /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @brief Handle Wake Up Timer non-secure interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTCEx_WakeUpTimerIRQHandler(RTC_HandleTypeDef *hrtc)
{
/* Get the pending status of the WAKEUPTIMER Interrupt */
if (READ_BIT(RTC->MISR, RTC_MISR_WUTMF) != 0U)
{
/* Clear the WAKEUPTIMER interrupt pending bit */
WRITE_REG(RTC->SCR, RTC_SCR_CWUTF);
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call WakeUpTimerEvent registered Callback */
hrtc->WakeUpTimerEventCallback(hrtc);
#else
/* WAKEUPTIMER callback */
HAL_RTCEx_WakeUpTimerEventCallback(hrtc);
#endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
}
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
}
#endif /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @brief Wake Up Timer callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_WakeUpTimerEventCallback could be implemented in the user file
*/
}
/**
* @brief Handle 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 tickstart = HAL_GetTick();
while (READ_BIT(RTC->SR, RTC_SR_WUTF) == 0U)
{
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
hrtc->State = HAL_RTC_STATE_TIMEOUT;
return HAL_TIMEOUT;
}
}
}
/* Clear the WAKEUPTIMER Flag */
WRITE_REG(RTC->SCR, RTC_SCR_CWUTF);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
return HAL_OK;
}
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group3
* @brief Extended Peripheral Control functions
*
@verbatim
===============================================================================
##### Extended Peripheral Control functions #####
===============================================================================
[..]
This subsection provides functions allowing to
(+) Write a data in a specified RTC Backup data register
(+) Read a data in a specified RTC Backup data register
(+) Set the Coarse calibration parameters.
(+) Deactivate the Coarse calibration parameters
(+) Set the Smooth calibration parameters.
(+) Set Low Power calibration parameter.
(+) Configure the Synchronization Shift Control Settings.
(+) Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
(+) Deactivate the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
(+) Enable the RTC reference clock detection.
(+) Disable the RTC reference clock detection.
(+) Enable the Bypass Shadow feature.
(+) Disable the Bypass Shadow feature.
@endverbatim
* @{
*/
/**
* @brief Set the Smooth calibration parameters.
* @note To deactivate the smooth calibration, the field SmoothCalibPlusPulses
* must be equal to SMOOTHCALIB_PLUSPULSES_RESET and the field
* SmoothCalibMinusPulsesValue must be equal to 0.
* @param hrtc RTC handle
* @param SmoothCalibPeriod Select the Smooth Calibration Period.
* This parameter can be can be one of the following values :
* @arg RTC_SMOOTHCALIB_PERIOD_32SEC: The smooth calibration period is 32s.
* @arg RTC_SMOOTHCALIB_PERIOD_16SEC: The smooth calibration period is 16s.
* @arg RTC_SMOOTHCALIB_PERIOD_8SEC: The smooth calibration period is 8s.
* @param SmoothCalibPlusPulses Select to Set or reset the CALP bit.
* This parameter can be one of the following values:
* @arg RTC_SMOOTHCALIB_PLUSPULSES_SET: Add one RTCCLK pulse every 2*11 pulses.
* @arg RTC_SMOOTHCALIB_PLUSPULSES_RESET: No RTCCLK pulses are added.
* @param SmoothCalibMinusPulsesValue Select the value of CALM[8:0] bits.
* This parameter can be one any value from 0 to 0x000001FF.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetSmoothCalib(RTC_HandleTypeDef *hrtc, uint32_t SmoothCalibPeriod, uint32_t SmoothCalibPlusPulses, uint32_t SmoothCalibMinusPulsesValue)
{
uint32_t tickstart;
/* Check the parameters */
assert_param(IS_RTC_SMOOTH_CALIB_PERIOD(SmoothCalibPeriod));
assert_param(IS_RTC_SMOOTH_CALIB_PLUS(SmoothCalibPlusPulses));
assert_param(IS_RTC_SMOOTH_CALIB_MINUS(SmoothCalibMinusPulsesValue));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* check if a calibration is pending*/
if (READ_BIT(RTC->ICSR, RTC_ICSR_RECALPF) != 0U)
{
tickstart = HAL_GetTick();
/* check if a calibration is pending*/
while (READ_BIT(RTC->ICSR, RTC_ICSR_RECALPF) != 0U)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
}
/* Configure the Smooth calibration settings */
MODIFY_REG(RTC->CALR, (RTC_CALR_CALP | RTC_CALR_CALW8 | RTC_CALR_CALW16 | RTC_CALR_CALM), (uint32_t)(SmoothCalibPeriod | SmoothCalibPlusPulses | SmoothCalibMinusPulsesValue));
/* 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 Select the low power Calibration mode.
* @param hrtc: RTC handle
* @param LowPowerCalib: Low power Calibration mode.
* This parameter can be can be one of the following values :
* @arg RTC_LPCAL_SET: Low power mode.
* @arg RTC_LPCAL_RESET: High consumption mode.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetLowPowerCalib(RTC_HandleTypeDef *hrtc, uint32_t LowPowerCalib)
{
/* Check the parameters */
assert_param(IS_RTC_LOW_POWER_CALIB(LowPowerCalib));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Configure the Smooth calibration settings */
MODIFY_REG(RTC->CALR, RTC_CALR_LPCAL, LowPowerCalib);
/* 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 Configure the Synchronization Shift Control Settings.
* @note When REFCKON is set, firmware must not write to Shift control register.
* @param hrtc RTC handle
* @param ShiftAdd1S Select to add or not 1 second to the time calendar.
* This parameter can be one of the following values:
* @arg RTC_SHIFTADD1S_SET: Add one second to the clock calendar.
* @arg RTC_SHIFTADD1S_RESET: No effect.
* @param ShiftSubFS Select the number of Second Fractions to substitute.
* This parameter can be one any value from 0 to 0x7FFF.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetSynchroShift(RTC_HandleTypeDef *hrtc, uint32_t ShiftAdd1S, uint32_t ShiftSubFS)
{
uint32_t tickstart;
/* Check the parameters */
assert_param(IS_RTC_SHIFT_ADD1S(ShiftAdd1S));
assert_param(IS_RTC_SHIFT_SUBFS(ShiftSubFS));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
tickstart = HAL_GetTick();
/* Wait until the shift is completed*/
while (READ_BIT(RTC->ICSR, RTC_ICSR_SHPF) != 0U)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
/* 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;
}
}
/* Check if the reference clock detection is disabled */
if (READ_BIT(RTC->CR, RTC_CR_REFCKON) == 0U)
{
/* Configure the Shift settings */
MODIFY_REG(RTC->SHIFTR, RTC_SHIFTR_SUBFS, (uint32_t)(ShiftSubFS) | (uint32_t)(ShiftAdd1S));
/* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
if (READ_BIT(RTC->CR, RTC_CR_BYPSHAD) == 0U)
{
if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_ERROR;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_ERROR;
}
}
}
else
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_ERROR;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_ERROR;
}
/* 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 Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
* @param hrtc RTC handle
* @param CalibOutput Select the Calibration output Selection .
* This parameter can be one of the following values:
* @arg RTC_CALIBOUTPUT_512HZ: A signal has a regular waveform at 512Hz.
* @arg RTC_CALIBOUTPUT_1HZ: A signal has a regular waveform at 1Hz.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetCalibrationOutPut(RTC_HandleTypeDef *hrtc, uint32_t CalibOutput)
{
/* Check the parameters */
assert_param(IS_RTC_CALIB_OUTPUT(CalibOutput));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Configure the RTC_CR register */
MODIFY_REG(RTC->CR, RTC_CR_COSEL, CalibOutput);
/* Enable calibration output */
SET_BIT(RTC->CR, RTC_CR_COE);
/* 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 Deactivate 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);
/* Disable calibration output */
CLEAR_BIT(RTC->CR, RTC_CR_COE);
/* 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 Enable the RTC reference clock detection.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetRefClock(RTC_HandleTypeDef *hrtc)
{
HAL_StatusTypeDef status;
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Enter Initialization mode */
status = RTC_EnterInitMode(hrtc);
if (status == HAL_OK)
{
/* Enable clockref detection */
SET_BIT(RTC->CR, RTC_CR_REFCKON);
/* Exit Initialization mode */
status = RTC_ExitInitMode(hrtc);
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
if (status == HAL_OK)
{
hrtc->State = HAL_RTC_STATE_READY;
}
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return status;
}
/**
* @brief Disable the RTC reference clock detection.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateRefClock(RTC_HandleTypeDef *hrtc)
{
HAL_StatusTypeDef status;
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Enter Initialization mode */
status = RTC_EnterInitMode(hrtc);
if (status == HAL_OK)
{
/* Disable clockref detection */
CLEAR_BIT(RTC->CR, RTC_CR_REFCKON);
/* Exit Initialization mode */
status = RTC_ExitInitMode(hrtc);
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
if (status == HAL_OK)
{
hrtc->State = HAL_RTC_STATE_READY;
}
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return status;
}
/**
* @brief Enable the Bypass Shadow feature.
* @note When the Bypass Shadow is enabled the calendar value are taken
* directly from the Calendar counter.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_EnableBypassShadow(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 the BYPSHAD bit */
SET_BIT(RTC->CR, RTC_CR_BYPSHAD);
/* 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 Bypass Shadow feature.
* @note When the Bypass Shadow is enabled the calendar value are taken
* directly from the Calendar counter.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DisableBypassShadow(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);
/* Reset the BYPSHAD bit */
CLEAR_BIT(RTC->CR, RTC_CR_BYPSHAD);
/* 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 Increment Monotonic counter.
* @param hrtc RTC handle
* @param Instance Monotonic counter Instance
* This parameter can be can be one of the following values :
* @arg RTC_MONOTONIC_COUNTER_1
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_MonotonicCounterIncrement(RTC_HandleTypeDef *hrtc, uint32_t Instance)
{
UNUSED(hrtc);
UNUSED(Instance);
/* This register is read-only only and is incremented by one when a write access is done to this
register. This register cannot roll-over and is frozen when reaching the maximum value. */
CLEAR_REG(TAMP->COUNTR);
return HAL_OK;
}
/**
* @brief Monotonic counter incrementation.
* @param hrtc RTC handle
* @param Instance Monotonic counter Instance
* This parameter can be can be one of the following values :
* @arg RTC_MONOTONIC_COUNTER_1
* @param Value Pointer to the counter monotonic counter value
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_MonotonicCounterGet(RTC_HandleTypeDef *hrtc, uint32_t Instance, uint32_t *Value)
{
UNUSED(hrtc);
UNUSED(Instance);
/* This register is read-only only and is incremented by one when a write access is done to this
register. This register cannot roll-over and is frozen when reaching the maximum value. */
*Value = READ_REG(TAMP->COUNTR);
return HAL_OK;
}
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group4
* @brief Extended features functions
*
@verbatim
===============================================================================
##### Extended features functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) RTC Alarm 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)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_AlarmBEventCallback could be implemented in the user file
*/
}
/**
* @brief Handle Alarm B 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 tickstart = HAL_GetTick();
while (READ_BIT(RTC->SR, RTC_SR_ALRBF) == 0U)
{
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
hrtc->State = HAL_RTC_STATE_TIMEOUT;
return HAL_TIMEOUT;
}
}
}
/* Clear the Alarm Flag */
WRITE_REG(RTC->SCR, RTC_SCR_CALRBF);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
return HAL_OK;
}
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group5
* @brief Extended RTC Tamper functions
*
@verbatim
==============================================================================
##### Tamper functions #####
==============================================================================
[..]
(+) Before calling any tamper or internal tamper function, you have to call first
HAL_RTC_Init() function.
(+) In that ine you can select to output tamper event on RTC pin.
[..]
(+) Enable the Tamper and configure the Tamper filter count, trigger Edge
or Level according to the Tamper filter (if equal to 0 Edge else Level)
value, sampling frequency, NoErase, MaskFlag, precharge or discharge and
Pull-UP, timestamp using the HAL_RTCEx_SetTamper() function.
You can configure Tamper with interrupt mode using HAL_RTCEx_SetTamper_IT() function.
(+) The default configuration of the Tamper erases the backup registers. To avoid
erase, enable the NoErase field on the TAMP_TAMPCR register.
[..]
(+) Enable Internal Tamper and configure it with interrupt, timestamp using
the HAL_RTCEx_SetInternalTamper() function.
@endverbatim
* @{
*/
/**
* @brief Set Tamper
* @param hrtc RTC handle
* @param sTamper Pointer to Tamper Structure.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetTamper(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef *sTamper)
{
uint32_t tmpreg;
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_TAMPER(sTamper->Tamper));
assert_param(IS_RTC_TAMPER_TRIGGER(sTamper->Trigger));
assert_param(IS_RTC_TAMPER_ERASE_MODE(sTamper->NoErase));
assert_param(IS_RTC_TAMPER_MASKFLAG_STATE(sTamper->MaskFlag));
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sTamper->TimeStampOnTamperDetection));
/* Mask flag only supported by TAMPER 1, 2 and 3 */
assert_param(!((sTamper->MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE) && (sTamper->Tamper > RTC_TAMPER_3)));
assert_param(IS_RTC_TAMPER_FILTER(sTamper->Filter));
assert_param(IS_RTC_TAMPER_SAMPLING_FREQ(sTamper->SamplingFrequency));
assert_param(IS_RTC_TAMPER_PRECHARGE_DURATION(sTamper->PrechargeDuration));
assert_param(IS_RTC_TAMPER_PULLUP_STATE(sTamper->TamperPullUp));
/* Trigger and Filter have exclusive configurations */
assert_param(((sTamper->Filter != RTC_TAMPERFILTER_DISABLE) && ((sTamper->Trigger == RTC_TAMPERTRIGGER_LOWLEVEL) || (sTamper->Trigger == RTC_TAMPERTRIGGER_HIGHLEVEL)))
|| ((sTamper->Filter == RTC_TAMPERFILTER_DISABLE) && ((sTamper->Trigger == RTC_TAMPERTRIGGER_RISINGEDGE) || (sTamper->Trigger == RTC_TAMPERTRIGGER_FALLINGEDGE))));
/* Configuration register 2 */
tmpreg = READ_REG(TAMP->CR2);
tmpreg &= ~((sTamper->Tamper << TAMP_CR2_TAMP1TRG_Pos) | (sTamper->Tamper << TAMP_CR2_TAMP1MSK_Pos) | (sTamper->Tamper << TAMP_CR2_TAMP1NOERASE_Pos));
if ((sTamper->Trigger == RTC_TAMPERTRIGGER_HIGHLEVEL) || (sTamper->Trigger == RTC_TAMPERTRIGGER_FALLINGEDGE))
{
tmpreg |= (sTamper->Tamper << TAMP_CR2_TAMP1TRG_Pos);
}
if (sTamper->MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE)
{
tmpreg |= (sTamper->Tamper << TAMP_CR2_TAMP1MSK_Pos);
}
if (sTamper->NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE)
{
tmpreg |= (sTamper->Tamper << TAMP_CR2_TAMP1NOERASE_Pos);
}
WRITE_REG(TAMP->CR2, tmpreg);
/* Filter control register */
WRITE_REG(TAMP->FLTCR, sTamper->Filter | sTamper->SamplingFrequency | sTamper->PrechargeDuration | sTamper->TamperPullUp);
/* Timestamp on tamper */
if (READ_BIT(RTC->CR, RTC_CR_TAMPTS) != sTamper->TimeStampOnTamperDetection)
{
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
MODIFY_REG(RTC->CR, RTC_CR_TAMPTS, sTamper->TimeStampOnTamperDetection);
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
}
/* Control register 1 */
SET_BIT(TAMP->CR1, sTamper->Tamper);
return HAL_OK;
}
/**
* @brief Set Tamper in IT mode
* @param hrtc RTC handle
* @param sTamper Pointer to Tamper Structure.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetTamper_IT(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef *sTamper)
{
uint32_t tmpreg;
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_TAMPER(sTamper->Tamper));
assert_param(IS_RTC_TAMPER_TRIGGER(sTamper->Trigger));
assert_param(IS_RTC_TAMPER_ERASE_MODE(sTamper->NoErase));
assert_param(IS_RTC_TAMPER_MASKFLAG_STATE(sTamper->MaskFlag));
assert_param(IS_RTC_TAMPER_FILTER(sTamper->Filter));
assert_param(IS_RTC_TAMPER_SAMPLING_FREQ(sTamper->SamplingFrequency));
assert_param(IS_RTC_TAMPER_PRECHARGE_DURATION(sTamper->PrechargeDuration));
assert_param(IS_RTC_TAMPER_PULLUP_STATE(sTamper->TamperPullUp));
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sTamper->TimeStampOnTamperDetection));
/* Configuration register 2 */
tmpreg = READ_REG(TAMP->CR2);
tmpreg &= ~((sTamper->Tamper << TAMP_CR2_TAMP1TRG_Pos) | (sTamper->Tamper << TAMP_CR2_TAMP1MSK_Pos) | (sTamper->Tamper << TAMP_CR2_TAMP1NOERASE_Pos));
if (sTamper->Trigger != RTC_TAMPERTRIGGER_RISINGEDGE)
{
tmpreg |= (sTamper->Tamper << TAMP_CR2_TAMP1TRG_Pos);
}
if (sTamper->MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE)
{
/* Feature only supported by TAMPER 1, 2 and 3 */
if (sTamper->Tamper < RTC_TAMPER_4)
{
tmpreg |= (sTamper->Tamper << TAMP_CR2_TAMP1MSK_Pos);
}
else
{
return HAL_ERROR;
}
}
if (sTamper->NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE)
{
tmpreg |= (sTamper->Tamper << TAMP_CR2_TAMP1NOERASE_Pos);
}
WRITE_REG(TAMP->CR2, tmpreg);
/* Filter control register */
WRITE_REG(TAMP->FLTCR, sTamper->Filter | sTamper->SamplingFrequency | sTamper->PrechargeDuration | sTamper->TamperPullUp);
/* Timestamp on tamper */
if (READ_BIT(RTC->CR, RTC_CR_TAMPTS) != sTamper->TimeStampOnTamperDetection)
{
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
MODIFY_REG(RTC->CR, RTC_CR_TAMPTS, sTamper->TimeStampOnTamperDetection);
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
}
/* RTC Tamper Interrupt Configuration: EXTI configuration */
__HAL_RTC_TAMPER_EXTI_ENABLE_IT();
/* Interrupt enable register */
SET_BIT(TAMP->IER, sTamper->Tamper);
/* Control register 1 */
SET_BIT(TAMP->CR1, sTamper->Tamper);
return HAL_OK;
}
/**
* @brief Deactivate Tamper.
* @param hrtc RTC handle
* @param Tamper Selected tamper pin.
* This parameter can be a combination of the following values:
* @arg RTC_TAMPER_1
* @arg RTC_TAMPER_2
* @arg RTC_TAMPER_3
* @arg RTC_TAMPER_4
* @arg RTC_TAMPER_5
* @arg RTC_TAMPER_6
* @arg RTC_TAMPER_7
* @arg RTC_TAMPER_8
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateTamper(RTC_HandleTypeDef *hrtc, uint32_t Tamper)
{
UNUSED(hrtc);
assert_param(IS_RTC_TAMPER(Tamper));
/* Disable the selected Tamper pin */
CLEAR_BIT(TAMP->CR1, Tamper);
/* Clear tamper mask/noerase/trigger configuration */
CLEAR_BIT(TAMP->CR2, (Tamper << TAMP_CR2_TAMP1TRG_Pos) | (Tamper << TAMP_CR2_TAMP1MSK_Pos) | (Tamper << TAMP_CR2_TAMP1NOERASE_Pos));
/* Clear tamper interrupt mode configuration */
CLEAR_BIT(TAMP->IER, Tamper);
/* Clear tamper interrupt and event flags (WO register) */
WRITE_REG(TAMP->SCR, Tamper);
return HAL_OK;
}
/**
* @brief Set all active Tampers at the same time.
* @param hrtc RTC handle
* @param sAllTamper Pointer to active Tamper Structure.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetActiveTampers(RTC_HandleTypeDef *hrtc, RTC_ActiveTampersTypeDef *sAllTamper)
{
uint32_t IER, CR1, CR2, ATCR1, ATCR2, CR, i, tickstart;
#ifdef USE_FULL_ASSERT
for (i = 0; i < RTC_TAMP_NB; i++)
{
assert_param(IS_RTC_TAMPER_ERASE_MODE(sAllTamper->TampInput[i].NoErase));
assert_param(IS_RTC_TAMPER_MASKFLAG_STATE(sAllTamper->TampInput[i].MaskFlag));
/* Mask flag only supported by TAMPER 1, 2 and 3 */
assert_param(!((sAllTamper->TampInput[i].MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE) && (i > RTC_TAMPER_3)));
}
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sAllTamper->TimeStampOnTamperDetection));
#endif /* #ifdef USE_FULL_ASSERT */
/* Active Tampers must not be already enabled */
if (READ_BIT(TAMP->ATOR, TAMP_ATOR_INITS) != 0U)
{
/* Disable all actives tampers with HAL_RTCEx_DeactivateActiveTampers.
No need to check return value because it returns always HAL_OK */
(void) HAL_RTCEx_DeactivateActiveTampers(hrtc);
}
/* Set TimeStamp on tamper detection */
CR = READ_REG(RTC->CR);
if ((CR & RTC_CR_TAMPTS) != (sAllTamper->TimeStampOnTamperDetection))
{
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
MODIFY_REG(RTC->CR, RTC_CR_TAMPTS, sAllTamper->TimeStampOnTamperDetection);
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
}
CR1 = READ_REG(TAMP->CR1);
CR2 = READ_REG(TAMP->CR2);
ATCR2 = 0U;
IER = READ_REG(TAMP->IER);
/* Set common parameters */
ATCR1 = (sAllTamper->ActiveFilter | (sAllTamper->ActiveOutputChangePeriod << TAMP_ATCR1_ATPER_Pos) | sAllTamper->ActiveAsyncPrescaler);
/* Set specific parameters for each active tamper inputs if enable */
for (i = 0; i < RTC_TAMP_NB; i++)
{
if (sAllTamper->TampInput[i].Enable != RTC_ATAMP_DISABLE)
{
CR1 |= (TAMP_CR1_TAMP1E << i);
ATCR1 |= (TAMP_ATCR1_TAMP1AM << i);
if (sAllTamper->TampInput[i].Interrupt != RTC_ATAMP_INTERRUPT_DISABLE)
{
/* RTC Tamper Interrupt Configuration: EXTI configuration */
__HAL_RTC_TAMPER_EXTI_ENABLE_IT();
/* Interrupt enable register */
IER |= (TAMP_IER_TAMP1IE << i);
}
if (sAllTamper->TampInput[i].MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE)
{
CR2 |= (TAMP_CR2_TAMP1MSK << i);
}
if (sAllTamper->TampInput[i].NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE)
{
CR2 |= (TAMP_CR2_TAMP1NOERASE << i);
}
/* Configure ATOSELx[] in case of output sharing */
ATCR2 |= sAllTamper->TampInput[i].Output << ((3u * i) + TAMP_ATCR2_ATOSEL1_Pos);
if (i != sAllTamper->TampInput[i].Output)
{
ATCR1 |= TAMP_ATCR1_ATOSHARE;
}
}
}
WRITE_REG(TAMP->IER, IER);
WRITE_REG(TAMP->IER, IER);
WRITE_REG(TAMP->ATCR1, ATCR1);
WRITE_REG(TAMP->ATCR2, ATCR2);
WRITE_REG(TAMP->CR2, CR2);
WRITE_REG(TAMP->CR1, CR1);
/* Write seed */
for (i = 0; i < RTC_ATAMP_SEED_NB_UINT32; i++)
{
WRITE_REG(TAMP->ATSEEDR, sAllTamper->Seed[i]);
}
/* Wait till RTC SEEDF flag is set and if Time out is reached exit */
tickstart = HAL_GetTick();
while (READ_BIT(TAMP->ATOR, TAMP_ATOR_SEEDF) != 0u)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
hrtc->State = HAL_RTC_STATE_TIMEOUT;
return HAL_TIMEOUT;
}
}
return HAL_OK;
}
/**
* @brief Write a new seed. Active tamper must be enabled.
* @param hrtc RTC handle
* @param pSeed Pointer to active tamper seed values.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetActiveSeed(RTC_HandleTypeDef *hrtc, uint32_t *pSeed)
{
uint32_t i, tickstart;
/* Active Tampers must be enabled */
if (READ_BIT(TAMP->ATOR, TAMP_ATOR_INITS) == 0U)
{
return HAL_ERROR;
}
for (i = 0; i < RTC_ATAMP_SEED_NB_UINT32; i++)
{
WRITE_REG(TAMP->ATSEEDR, pSeed[i]);
}
/* Wait till RTC SEEDF flag is set and if Time out is reached exit */
tickstart = HAL_GetTick();
while (READ_BIT(TAMP->ATOR, TAMP_ATOR_SEEDF) != 0U)
{
if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
{
hrtc->State = HAL_RTC_STATE_TIMEOUT;
return HAL_TIMEOUT;
}
}
return HAL_OK;
}
/**
* @brief Deactivate all Active Tampers at the same time.
* @param hrtc RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateActiveTampers(RTC_HandleTypeDef *hrtc)
{
/* Get Active tampers */
uint32_t ATamp_mask = READ_BIT(TAMP->ATCR1, TAMP_ALL);
UNUSED(hrtc);
/* Disable all actives tampers but not passives tampers */
CLEAR_BIT(TAMP->CR1, ATamp_mask);
/* Disable no erase and mask */
CLEAR_BIT(TAMP->CR2, (ATamp_mask | ((ATamp_mask & (TAMP_ATCR1_TAMP1AM | TAMP_ATCR1_TAMP2AM | TAMP_ATCR1_TAMP3AM)) << TAMP_CR2_TAMP1MSK_Pos)));
/* Clear tamper interrupt and event flags (WO register) of all actives tampers but not passives tampers */
WRITE_REG(TAMP->SCR, ATamp_mask);
/* Clear all active tampers interrupt mode configuration but not passives tampers */
CLEAR_BIT(TAMP->IER, ATamp_mask);
CLEAR_BIT(TAMP->ATCR1, TAMP_ALL | TAMP_ATCR1_ATCKSEL | TAMP_ATCR1_ATPER | \
TAMP_ATCR1_ATOSHARE | TAMP_ATCR1_FLTEN);
CLEAR_BIT(TAMP->ATCR2, TAMP_ATCR2_ATOSEL1 | TAMP_ATCR2_ATOSEL2 | TAMP_ATCR2_ATOSEL3 | TAMP_ATCR2_ATOSEL4 |
TAMP_ATCR2_ATOSEL5 | TAMP_ATCR2_ATOSEL6 | TAMP_ATCR2_ATOSEL7 | TAMP_ATCR2_ATOSEL8);
return HAL_OK;
}
/**
* @brief Tamper event polling.
* @param hrtc RTC handle
* @param Tamper Selected tamper pin.
* This parameter can be a combination of the following values:
* @arg RTC_TAMPER_1
* @arg RTC_TAMPER_2
* @arg RTC_TAMPER_3
* @arg RTC_TAMPER_4
* @arg RTC_TAMPER_5
* @arg RTC_TAMPER_6
* @arg RTC_TAMPER_7
* @arg RTC_TAMPER_8
* @param Timeout Timeout duration
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_PollForTamperEvent(RTC_HandleTypeDef *hrtc, uint32_t Tamper, uint32_t Timeout)
{
UNUSED(hrtc);
assert_param(IS_RTC_TAMPER(Tamper));
uint32_t tickstart = HAL_GetTick();
/* Get the status of the Interrupt */
while (READ_BIT(TAMP->SR, Tamper) != Tamper)
{
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
return HAL_TIMEOUT;
}
}
}
/* Clear the Tamper Flag */
WRITE_REG(TAMP->SCR, Tamper);
return HAL_OK;
}
/**
* @brief Set Internal Tamper in interrupt mode
* @param hrtc RTC handle
* @param sIntTamper Pointer to Internal Tamper Structure.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetInternalTamper(RTC_HandleTypeDef *hrtc, RTC_InternalTamperTypeDef *sIntTamper)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_INTERNAL_TAMPER(sIntTamper->IntTamper));
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sIntTamper->TimeStampOnTamperDetection));
assert_param(IS_RTC_TAMPER_ERASE_MODE(sIntTamper->NoErase));
/* timestamp on internal tamper */
if (READ_BIT(RTC->CR, RTC_CR_TAMPTS) != sIntTamper->TimeStampOnTamperDetection)
{
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
MODIFY_REG(RTC->CR, RTC_CR_TAMPTS, sIntTamper->TimeStampOnTamperDetection);
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
}
if (sIntTamper->NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE)
{
/* Control register 3 */
SET_BIT(TAMP->CR3, (sIntTamper->IntTamper >> (TAMP_CR1_ITAMP1E_Pos - TAMP_CR3_ITAMP1NOER_Pos)));
}
/* Control register 1 */
SET_BIT(TAMP->CR1, sIntTamper->IntTamper);
return HAL_OK;
}
/**
* @brief Set Internal Tamper
* @param hrtc RTC handle
* @param sIntTamper Pointer to Internal Tamper Structure.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetInternalTamper_IT(RTC_HandleTypeDef *hrtc, RTC_InternalTamperTypeDef *sIntTamper)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_INTERNAL_TAMPER(sIntTamper->IntTamper));
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sIntTamper->TimeStampOnTamperDetection));
assert_param(IS_RTC_TAMPER_ERASE_MODE(sIntTamper->NoErase));
/* timestamp on internal tamper */
if (READ_BIT(RTC->CR, RTC_CR_TAMPTS) != sIntTamper->TimeStampOnTamperDetection)
{
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
MODIFY_REG(RTC->CR, RTC_CR_TAMPTS, sIntTamper->TimeStampOnTamperDetection);
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
}
/* RTC Tamper Interrupt Configuration: EXTI configuration */
__HAL_RTC_TAMPER_EXTI_ENABLE_IT();
/* Interrupt enable register */
SET_BIT(TAMP->IER, sIntTamper->IntTamper);
if (sIntTamper->NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE)
{
/* Control register 3 */
SET_BIT(TAMP->CR3, (sIntTamper->IntTamper >> (TAMP_CR1_ITAMP1E_Pos - TAMP_CR3_ITAMP1NOER_Pos)));
}
/* Control register 1 */
SET_BIT(TAMP->CR1, sIntTamper->IntTamper);
return HAL_OK;
}
/**
* @brief Deactivate Internal Tamper.
* @param hrtc RTC handle
* @param IntTamper Selected internal tamper event.
* This parameter can be any combination of existing internal tampers.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateInternalTamper(RTC_HandleTypeDef *hrtc, uint32_t IntTamper)
{
UNUSED(hrtc);
assert_param(IS_RTC_INTERNAL_TAMPER(IntTamper));
/* Disable the selected Tamper pin */
CLEAR_BIT(TAMP->CR1, IntTamper);
/* Clear internal tamper interrupt mode configuration */
CLEAR_BIT(TAMP->IER, IntTamper);
/* Clear internal tamper interrupt */
WRITE_REG(TAMP->SCR, IntTamper);
return HAL_OK;
}
/**
* @brief Internal Tamper event polling.
* @param hrtc RTC handle
* @param IntTamper selected tamper.
* This parameter can be any combination of existing internal tampers.
* @param Timeout Timeout duration
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_PollForInternalTamperEvent(RTC_HandleTypeDef *hrtc, uint32_t IntTamper, uint32_t Timeout)
{
UNUSED(hrtc);
assert_param(IS_RTC_INTERNAL_TAMPER(IntTamper));
uint32_t tickstart = HAL_GetTick();
/* Get the status of the Interrupt */
while (READ_BIT(TAMP->SR, IntTamper) != IntTamper)
{
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
return HAL_TIMEOUT;
}
}
}
/* Clear the Tamper Flag */
WRITE_REG(TAMP->SCR, IntTamper);
return HAL_OK;
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
/**
* @brief Handle Tamper secure interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTCEx_TamperIRQHandler(RTC_HandleTypeDef *hrtc)
{
uint32_t tmp;
/* Get secure interrupt status */
tmp = READ_REG(TAMP->SMISR);
/* Immediately clear flags */
WRITE_REG(TAMP->SCR, tmp);
/* Check Tamper1 status */
if ((tmp & RTC_TAMPER_1) == RTC_TAMPER_1)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 1 Event registered secure Callback */
hrtc->Tamper1EventCallback(hrtc);
#else
/* Tamper1 secure callback */
HAL_RTCEx_Tamper1EventCallback(hrtc);
#endif
}
/* Check Tamper2 status */
if ((tmp & RTC_TAMPER_2) == RTC_TAMPER_2)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 2 Event registered secure Callback */
hrtc->Tamper2EventCallback(hrtc);
#else
/* Tamper2 secure callback */
HAL_RTCEx_Tamper2EventCallback(hrtc);
#endif
}
/* Check Tamper3 status */
if ((tmp & RTC_TAMPER_3) == RTC_TAMPER_3)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 3 Event registered secure Callback */
hrtc->Tamper3EventCallback(hrtc);
#else
/* Tamper3 secure callback */
HAL_RTCEx_Tamper3EventCallback(hrtc);
#endif
}
/* Check Tamper4 status */
if ((tmp & RTC_TAMPER_4) == RTC_TAMPER_4)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 4 Event registered secure Callback */
hrtc->Tamper4EventCallback(hrtc);
#else
/* Tamper4 secure callback */
HAL_RTCEx_Tamper4EventCallback(hrtc);
#endif
}
/* Check Tamper5 status */
if ((tmp & RTC_TAMPER_5) == RTC_TAMPER_5)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 5 Event registered secure Callback */
hrtc->Tamper5EventCallback(hrtc);
#else
/* Tamper5 secure callback */
HAL_RTCEx_Tamper5EventCallback(hrtc);
#endif
}
/* Check Tamper6 status */
if ((tmp & RTC_TAMPER_6) == RTC_TAMPER_6)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 6 Event registered secure Callback */
hrtc->Tamper6EventCallback(hrtc);
#else
/* Tamper6 secure callback */
HAL_RTCEx_Tamper6EventCallback(hrtc);
#endif
}
/* Check Tamper7 status */
if ((tmp & RTC_TAMPER_7) == RTC_TAMPER_7)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 7 Event registered secure Callback */
hrtc->Tamper7EventCallback(hrtc);
#else
/* Tamper7 secure callback */
HAL_RTCEx_Tamper7EventCallback(hrtc);
#endif
}
/* Check Tamper8 status */
if ((tmp & RTC_TAMPER_8) == RTC_TAMPER_8)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 8 Event registered secure Callback */
hrtc->Tamper8EventCallback(hrtc);
#else
/* Tamper8 secure callback */
HAL_RTCEx_Tamper8EventCallback(hrtc);
#endif
}
/* Check Internal Tamper1 status */
if ((tmp & RTC_INT_TAMPER_1) == RTC_INT_TAMPER_1)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 1 Event registered secure Callback */
hrtc->InternalTamper1EventCallback(hrtc);
#else
/* Internal Tamper1 secure callback */
HAL_RTCEx_InternalTamper1EventCallback(hrtc);
#endif
}
/* Check Internal Tamper2 status */
if ((tmp & RTC_INT_TAMPER_2) == RTC_INT_TAMPER_2)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 2 Event registered secure Callback */
hrtc->InternalTamper2EventCallback(hrtc);
#else
/* Internal Tamper2 secure callback */
HAL_RTCEx_InternalTamper2EventCallback(hrtc);
#endif
}
/* Check Internal Tamper3 status */
if ((tmp & RTC_INT_TAMPER_3) == RTC_INT_TAMPER_3)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 3 Event registered secure Callback */
hrtc->InternalTamper3EventCallback(hrtc);
#else
/* Internal Tamper3 secure callback */
HAL_RTCEx_InternalTamper3EventCallback(hrtc);
#endif
}
/* Check Internal Tamper5 status */
if ((tmp & RTC_INT_TAMPER_5) == RTC_INT_TAMPER_5)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 5 Event registered secure Callback */
hrtc->InternalTamper5EventCallback(hrtc);
#else
/* Internal Tamper5 secure callback */
HAL_RTCEx_InternalTamper5EventCallback(hrtc);
#endif
}
/* Check Internal Tamper8 status */
if ((tmp & RTC_INT_TAMPER_8) == RTC_INT_TAMPER_8)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 8 Event registered secure Callback */
hrtc->InternalTamper8EventCallback(hrtc);
#else
/* Internal Tamper8 secure callback */
HAL_RTCEx_InternalTamper8EventCallback(hrtc);
#endif
}
}
#else /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @brief Handle Tamper non-secure interrupt request.
* @param hrtc RTC handle
* @retval None
*/
void HAL_RTCEx_TamperIRQHandler(RTC_HandleTypeDef *hrtc)
{
/* Get interrupt status */
uint32_t tmp = READ_REG(TAMP->MISR);
/* Immediately clear flags */
WRITE_REG(TAMP->SCR, tmp);
/* Check Tamper1 status */
if ((tmp & RTC_TAMPER_1) == RTC_TAMPER_1)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 1 Event registered Callback */
hrtc->Tamper1EventCallback(hrtc);
#else
/* Tamper1 callback */
HAL_RTCEx_Tamper1EventCallback(hrtc);
#endif
}
/* Check Tamper2 status */
if ((tmp & RTC_TAMPER_2) == RTC_TAMPER_2)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 2 Event registered Callback */
hrtc->Tamper2EventCallback(hrtc);
#else
/* Tamper2 callback */
HAL_RTCEx_Tamper2EventCallback(hrtc);
#endif
}
/* Check Tamper3 status */
if ((tmp & RTC_TAMPER_3) == RTC_TAMPER_3)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 3 Event registered Callback */
hrtc->Tamper3EventCallback(hrtc);
#else
/* Tamper3 callback */
HAL_RTCEx_Tamper3EventCallback(hrtc);
#endif
}
/* Check Tamper4 status */
if ((tmp & RTC_TAMPER_4) == RTC_TAMPER_4)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 4 Event registered Callback */
hrtc->Tamper4EventCallback(hrtc);
#else
/* Tamper4 callback */
HAL_RTCEx_Tamper4EventCallback(hrtc);
#endif
}
/* Check Tamper5 status */
if ((tmp & RTC_TAMPER_5) == RTC_TAMPER_5)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 5 Event registered Callback */
hrtc->Tamper5EventCallback(hrtc);
#else
/* Tamper5 callback */
HAL_RTCEx_Tamper5EventCallback(hrtc);
#endif
}
/* Check Tamper6 status */
if ((tmp & RTC_TAMPER_6) == RTC_TAMPER_6)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 6 Event registered Callback */
hrtc->Tamper6EventCallback(hrtc);
#else
/* Tamper6 callback */
HAL_RTCEx_Tamper6EventCallback(hrtc);
#endif
}
/* Check Tamper7 status */
if ((tmp & RTC_TAMPER_7) == RTC_TAMPER_7)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 7 Event registered Callback */
hrtc->Tamper7EventCallback(hrtc);
#else
/* Tamper7 callback */
HAL_RTCEx_Tamper7EventCallback(hrtc);
#endif
}
/* Check Tamper8 status */
if ((tmp & RTC_TAMPER_8) == RTC_TAMPER_8)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Tamper 8 Event registered Callback */
hrtc->Tamper8EventCallback(hrtc);
#else
/* Tamper8 callback */
HAL_RTCEx_Tamper8EventCallback(hrtc);
#endif
}
/* Check Internal Tamper1 status */
if ((tmp & RTC_INT_TAMPER_1) == RTC_INT_TAMPER_1)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 1 Event registered Callback */
hrtc->InternalTamper1EventCallback(hrtc);
#else
/* Internal Tamper1 callback */
HAL_RTCEx_InternalTamper1EventCallback(hrtc);
#endif
}
/* Check Internal Tamper2 status */
if ((tmp & RTC_INT_TAMPER_2) == RTC_INT_TAMPER_2)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 2 Event registered Callback */
hrtc->InternalTamper2EventCallback(hrtc);
#else
/* Internal Tamper2 callback */
HAL_RTCEx_InternalTamper2EventCallback(hrtc);
#endif
}
/* Check Internal Tamper3 status */
if ((tmp & RTC_INT_TAMPER_3) == RTC_INT_TAMPER_3)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 3 Event registered Callback */
hrtc->InternalTamper3EventCallback(hrtc);
#else
/* Internal Tamper3 callback */
HAL_RTCEx_InternalTamper3EventCallback(hrtc);
#endif
}
/* Check Internal Tamper5 status */
if ((tmp & RTC_INT_TAMPER_5) == RTC_INT_TAMPER_5)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 5 Event registered Callback */
hrtc->InternalTamper5EventCallback(hrtc);
#else
/* Internal Tamper5 callback */
HAL_RTCEx_InternalTamper5EventCallback(hrtc);
#endif
}
/* Check Internal Tamper8 status */
if ((tmp & RTC_INT_TAMPER_8) == RTC_INT_TAMPER_8)
{
#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
/* Call Internal Tamper 8 Event registered Callback */
hrtc->InternalTamper8EventCallback(hrtc);
#else
/* Internal Tamper8 callback */
HAL_RTCEx_InternalTamper8EventCallback(hrtc);
#endif
}
}
#endif /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @brief Tamper 1 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper1EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper1EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 2 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper2EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper2EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 3 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper3EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper3EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 4 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper4EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper4EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 5 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper5EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper5EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 6 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper6EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper6EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 7 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper7EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper7EventCallback could be implemented in the user file
*/
}
/**
* @brief Tamper 8 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_Tamper8EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_Tamper8EventCallback could be implemented in the user file
*/
}
/**
* @brief Internal Tamper 1 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_InternalTamper1EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_InternalTamper1EventCallback could be implemented in the user file
*/
}
/**
* @brief Internal Tamper 2 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_InternalTamper2EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_InternalTamper2EventCallback could be implemented in the user file
*/
}
/**
* @brief Internal Tamper 3 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_InternalTamper3EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_InternalTamper3EventCallback could be implemented in the user file
*/
}
/**
* @brief Internal Tamper 5 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_InternalTamper5EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_InternalTamper5EventCallback could be implemented in the user file
*/
}
/**
* @brief Internal Tamper 8 callback.
* @param hrtc RTC handle
* @retval None
*/
__weak void HAL_RTCEx_InternalTamper8EventCallback(RTC_HandleTypeDef *hrtc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrtc);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_RTCEx_InternalTamper8EventCallback could be implemented in the user file
*/
}
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group6
* @brief Extended RTC Backup register functions
*
@verbatim
===============================================================================
##### Extended RTC Backup register functions #####
===============================================================================
[..]
(+) Before calling any tamper or internal tamper function, you have to call first
HAL_RTC_Init() function.
(+) In that ine you can select to output tamper event on RTC pin.
[..]
This subsection provides functions allowing to
(+) Write a data in a specified RTC Backup data register
(+) Read a data in a specified RTC Backup data register
@endverbatim
* @{
*/
/**
* @brief Write 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 RTC_BACKUP_NB
* @param Data Data to be written in the specified Backup data register.
* @retval None
*/
void HAL_RTCEx_BKUPWrite(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister, uint32_t Data)
{
uint32_t tmp;
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_BKP(BackupRegister));
tmp = (uint32_t) & (TAMP->BKP0R);
tmp += (BackupRegister * 4U);
/* 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 RTC_BACKUP_NB
* @retval Read value
*/
uint32_t HAL_RTCEx_BKUPRead(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister)
{
uint32_t tmp;
UNUSED(hrtc);
/* Check the parameters */
assert_param(IS_RTC_BKP(BackupRegister));
tmp = (uint32_t) & (TAMP->BKP0R);
tmp += (BackupRegister * 4U);
/* Read the specified register */
return (*(__IO uint32_t *)tmp);
}
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group7
* @brief Extended RTC security functions
*
@verbatim
===============================================================================
##### Extended RTC security functions #####
===============================================================================
[..]
(+) Before calling security function, you have to call first
HAL_RTC_Init() function.
@endverbatim
* @{
*/
/**
* @brief Get the security level of the RTC.
* To set the secure level please call HAL_RTCEx_SecureModeSet.
* @param hrtc RTC handle
* @param secureState Secure state
* @retval HAL_StatusTypeDef
*/
HAL_StatusTypeDef HAL_RTCEx_SecureModeGet(RTC_HandleTypeDef *hrtc, RTC_SecureStateTypeDef *secureState)
{
UNUSED(hrtc);
/* Read registers */
uint32_t rtc_smcr = READ_REG(RTC->SMCR);
uint32_t tamp_smcr = READ_REG(TAMP->SMCR);
/* RTC */
secureState->rtcSecureFull = READ_BIT(rtc_smcr, RTC_SMCR_DECPROT);
/* Warning, rtcNonSecureFeatures is only relevant if secureState->rtcSecureFull == RTC_SECURE_FULL_NO */
secureState->rtcNonSecureFeatures = READ_BIT(rtc_smcr, RTC_NONSECURE_FEATURE_ALL);
/* TAMP */
secureState->tampSecureFull = READ_BIT(tamp_smcr, TAMP_SMCR_TAMPDPROT);
/* Backup register start zones
Warning : Backup register start zones are shared with privilege configuration */
secureState->backupRegisterStartZone2 = READ_BIT(tamp_smcr, TAMP_SMCR_BKPRWDPROT) >> TAMP_SMCR_BKPRWDPROT_Pos;
secureState->backupRegisterStartZone3 = READ_BIT(tamp_smcr, TAMP_SMCR_BKPWDPROT) >> TAMP_SMCR_BKPWDPROT_Pos;
return HAL_OK;
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
/**
* @brief Set the security level of the RTC/TAMP/Backup registers.
* To get the current security level call HAL_RTCEx_SecureModeGet.
* @param hrtc RTC handle
* @param secureState Secure state
* @retval HAL_StatusTypeDef
*/
HAL_StatusTypeDef HAL_RTCEx_SecureModeSet(RTC_HandleTypeDef *hrtc, RTC_SecureStateTypeDef *secureState)
{
UNUSED(hrtc);
assert_param(IS_RTC_SECURE_FULL(secureState->rtcSecureFull));
assert_param(IS_RTC_NONSECURE_FEATURES(secureState->rtcNonSecureFeatures));
assert_param(IS_TAMP_SECURE_FULL(secureState->tampSecureFull));
assert_param(IS_RTC_BKP(secureState->backupRegisterStartZone2));
assert_param(IS_RTC_BKP(secureState->backupRegisterStartZone3));
/* RTC, rtcNonSecureFeatures is only relevant if secureState->rtcSecureFull == RTC_SECURE_FULL_NO */
WRITE_REG(RTC->SMCR, secureState->rtcSecureFull | secureState->rtcNonSecureFeatures);
/* Tamper + Backup register
Warning : Backup register start zone are Shared with privilege configuration */
WRITE_REG(TAMP->SMCR,
secureState->tampSecureFull |
(TAMP_SMCR_BKPRWDPROT & (secureState->backupRegisterStartZone2 << TAMP_SMCR_BKPRWDPROT_Pos)) |
(TAMP_SMCR_BKPWDPROT & (secureState->backupRegisterStartZone3 << TAMP_SMCR_BKPWDPROT_Pos)));
return HAL_OK;
}
#endif /* #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
/**
* @}
*/
/** @addtogroup RTCEx_Exported_Functions_Group8
* @brief Extended RTC privilege functions
*
@verbatim
===============================================================================
##### Extended RTC privilege functions #####
===============================================================================
[..]
(+) Before calling privilege function, you have to call first
HAL_RTC_Init() function.
@endverbatim
* @{
*/
/**
* @brief Set the privilege level of the RTC/TAMP registers.
* To get the current privilege level call HAL_RTCEx_PrivilegeModeGet.
* @param hrtc RTC handle
* @param privilegeState Privilege state
* @retval HAL_StatusTypeDef
*/
HAL_StatusTypeDef HAL_RTCEx_PrivilegeModeSet(RTC_HandleTypeDef *hrtc, RTC_PrivilegeStateTypeDef *privilegeState)
{
UNUSED(hrtc);
assert_param(IS_RTC_PRIVILEGE_FULL(privilegeState->rtcPrivilegeFull));
assert_param(IS_RTC_PRIVILEGE_FEATURES(privilegeState->rtcPrivilegeFeatures));
assert_param(IS_TAMP_PRIVILEGE_FULL(privilegeState->tampPrivilegeFull));
assert_param(IS_RTC_PRIVILEGE_BKUP_ZONE(privilegeState->backupRegisterPrivZone));
assert_param(IS_RTC_BKP(privilegeState->backupRegisterStartZone2));
assert_param(IS_RTC_BKP(privilegeState->backupRegisterStartZone3));
/* RTC privilege configuration */
WRITE_REG(RTC->PRIVCR, privilegeState->rtcPrivilegeFull | privilegeState->rtcPrivilegeFeatures);
/* TAMP and Backup registers privilege configuration
Warning : privilegeState->backupRegisterPrivZone is only writable in secure mode or if trustzone is disabled.
In non secure mode, a notification is generated through a flag/interrupt in the TZIC (TrustZone interrupt controller). The bits are not written. */
WRITE_REG(TAMP->PRIVCR, privilegeState->tampPrivilegeFull | privilegeState->backupRegisterPrivZone);
/* Backup register start zone
Warning : This parameter is only writable in secure mode or if trustzone is disabled.
In non secure mode, a notification is generated through a flag/interrupt in the TZIC (TrustZone interrupt controller). The bits are not written.
Warning : Backup register start zones are shared with secure configuration */
MODIFY_REG(TAMP->SMCR,
(TAMP_SMCR_BKPRWDPROT | TAMP_SMCR_BKPWDPROT),
((privilegeState->backupRegisterStartZone2 << TAMP_SMCR_BKPRWDPROT_Pos) | (privilegeState->backupRegisterStartZone3 << TAMP_SMCR_BKPWDPROT_Pos)));
return HAL_OK;
}
/**
* @brief Get the privilege level of the RTC.
* To set the privilege level please call HAL_RTCEx_PrivilegeModeSet.
* @param hrtc RTC handle
* @param privilegeState Privilege state
* @retval HAL_StatusTypeDef
*/
HAL_StatusTypeDef HAL_RTCEx_PrivilegeModeGet(RTC_HandleTypeDef *hrtc, RTC_PrivilegeStateTypeDef *privilegeState)
{
/* Read registers */
uint32_t rtc_privcr = READ_REG(RTC->PRIVCR);
uint32_t tamp_privcr = READ_REG(TAMP->PRIVCR);
uint32_t tamp_smcr = READ_REG(TAMP->SMCR);
UNUSED(hrtc);
/* RTC privilege configuration */
privilegeState->rtcPrivilegeFull = READ_BIT(rtc_privcr, RTC_PRIVCR_PRIV);
/* Warning, rtcPrivilegeFeatures is only relevant if privilegeState->rtcPrivilegeFull == RTC_PRIVILEGE_FULL_NO */
privilegeState->rtcPrivilegeFeatures = READ_BIT(rtc_privcr, RTC_PRIVILEGE_FEATURE_ALL);
/* TAMP and Backup registers privilege configuration */
privilegeState->tampPrivilegeFull = READ_BIT(tamp_privcr, TAMP_PRIVCR_TAMPPRIV);
/* Backup registers Zones */
privilegeState->backupRegisterPrivZone = READ_BIT(tamp_privcr, (TAMP_PRIVCR_BKPWPRIV | TAMP_PRIVCR_BKPRWPRIV));
/* Backup register start zones
Warning : Shared with secure configuration */
privilegeState->backupRegisterStartZone2 = READ_BIT(tamp_smcr, TAMP_SMCR_BKPRWDPROT) >> TAMP_SMCR_BKPRWDPROT_Pos;
privilegeState->backupRegisterStartZone3 = READ_BIT(tamp_smcr, TAMP_SMCR_BKPWDPROT) >> TAMP_SMCR_BKPWDPROT_Pos;
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_RTC_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/