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Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_hal_pwr.c
- Revision:
- 394:83f921546702
- Parent:
- 393:17d2d502961d
- Child:
- 395:bfce16e86ea4
--- a/targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_hal_pwr.c Fri Nov 07 12:00:11 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,612 +0,0 @@
-/**
- ******************************************************************************
- * @file stm32l1xx_hal_pwr.c
- * @author MCD Application Team
- * @version V1.0.0
- * @date 5-September-2014
- * @brief PWR HAL module driver.
- *
- * This file provides firmware functions to manage the following
- * functionalities of the Power Controller (PWR) peripheral:
- * + Initialization/de-initialization functions
- * + Peripheral Control functions
- *
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32l1xx_hal.h"
-
-/** @addtogroup STM32L1xx_HAL_Driver
- * @{
- */
-
-/** @defgroup PWR PWR
- * @brief PWR HAL module driver
- * @{
- */
-
-#ifdef HAL_PWR_MODULE_ENABLED
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define PVD_MODE_IT ((uint32_t)0x00010000)
-#define PVD_MODE_EVT ((uint32_t)0x00020000)
-#define PVD_RISING_EDGE ((uint32_t)0x00000001)
-#define PVD_FALLING_EDGE ((uint32_t)0x00000002)
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup PWR_Exported_Functions PWR Exported Functions
- * @{
- */
-
-/** @defgroup PWR_Exported_Functions_Group1 Initialization and de-initialization functions
- * @brief Initialization and de-initialization functions
- *
-@verbatim
- ===============================================================================
- ##### Initialization and de-initialization functions #####
- ===============================================================================
- [..]
- After reset, the backup domain (RTC registers, RTC backup data
- registers) is protected against possible unwanted
- write accesses.
- To enable access to the RTC Domain and RTC registers, proceed as follows:
- (+) Enable the Power Controller (PWR) APB1 interface clock using the
- __PWR_CLK_ENABLE() macro.
- (+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Deinitializes the PWR peripheral registers to their default reset values.
- * @note Before calling this function, the VOS[1:0] bits should be configured
- * to "10" and the system frequency has to be configured accordingly.
- * To configure the VOS[1:0] bits, use the PWR_VoltageScalingConfig()
- * function.
- * @note ULP and FWU bits are not reset by this function.
- * @retval None
- */
-void HAL_PWR_DeInit(void)
-{
- __PWR_FORCE_RESET();
- __PWR_RELEASE_RESET();
-}
-
-/**
- * @brief Enables access to the backup domain (RTC registers, RTC
- * backup data registers ).
- * @note If the HSE divided by 2, 4, 8 or 16 is used as the RTC clock, the
- * Backup Domain Access should be kept enabled.
- * @retval None
- */
-void HAL_PWR_EnableBkUpAccess(void)
-{
- /* Enable access to RTC and backup registers */
- *(__IO uint32_t *) CR_DBP_BB = (uint32_t)ENABLE;
-}
-
-/**
- * @brief Disables access to the backup domain (RTC registers, RTC
- * backup data registers).
- * @note If the HSE divided by 2, 4, 8 or 16 is used as the RTC clock, the
- * Backup Domain Access should be kept enabled.
- * @retval None
- */
-void HAL_PWR_DisableBkUpAccess(void)
-{
- /* Disable access to RTC and backup registers */
- *(__IO uint32_t *) CR_DBP_BB = (uint32_t)DISABLE;
-}
-
-/**
- * @}
- */
-
-/** @defgroup PWR_Exported_Functions_Group2 Peripheral Control functions
- * @brief Low Power modes configuration functions
- *
-@verbatim
-
- ===============================================================================
- ##### Peripheral Control functions #####
- ===============================================================================
-
- *** PVD configuration ***
- =========================
- [..]
- (+) The PVD is used to monitor the VDD power supply by comparing it to a
- threshold selected by the PVD Level (PLS[2:0] bits in the PWR_CR).
- (+) The PVD can use an external input analog voltage (PVD_IN) which is compared
- internally to VREFINT. The PVD_IN (PB7) has to be configured in Analog mode
- when PWR_PVDLevel_7 is selected (PLS[2:0] = 111).
-
- (+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower
- than the PVD threshold. This event is internally connected to the EXTI
- line16 and can generate an interrupt if enabled. This is done through
- __HAL_PVD_EXTI_ENABLE_IT() macro.
- (+) The PVD is stopped in Standby mode.
-
- *** WakeUp pin configuration ***
- ================================
- [..]
- (+) WakeUp pin is used to wake up the system from Standby mode. This pin is
- forced in input pull-down configuration and is active on rising edges.
- (+) There are two or three WakeUp pins:
- WakeUp Pin 1 on PA.00.
- WakeUp Pin 2 on PC.13.
- WakeUp Pin 3 on PE.06. : Only on product with GPIOE available
-
- [..]
- *** Main and Backup Regulators configuration ***
- ================================================
-
- (+) The main internal regulator can be configured to have a tradeoff between
- performance and power consumption when the device does not operate at
- the maximum frequency. This is done through __HAL_PWR_VOLTAGESCALING_CONFIG()
- macro which configure VOS bit in PWR_CR register:
- (++) When this bit is set (Regulator voltage output Scale 1 mode selected)
- the System frequency can go up to 32 MHz.
- (++) When this bit is reset (Regulator voltage output Scale 2 mode selected)
- the System frequency can go up to 16 MHz.
- (++) When this bit is reset (Regulator voltage output Scale 3 mode selected)
- the System frequency can go up to 4.2 MHz.
-
- Refer to the datasheets for more details.
-
- *** Low Power modes configuration ***
- =====================================
- [..]
- The device features 5 low-power modes:
- (+) Low power run mode: regulator in low power mode, limited clock frequency,
- limited number of peripherals running.
- (+) Sleep mode: Cortex-M3 core stopped, peripherals kept running.
- (+) Low power sleep mode: Cortex-M3 core stopped, limited clock frequency,
- limited number of peripherals running, regulator in low power mode.
- (+) Stop mode: All clocks are stopped, regulator running, regulator in low power mode.
- (+) Standby mode: VCORE domain powered off
-
- *** Low power run mode ***
- =========================
- [..]
- To further reduce the consumption when the system is in Run mode, the regulator can be
- configured in low power mode. In this mode, the system frequency should not exceed
- MSI frequency range1.
- In Low power run mode, all I/O pins keep the same state as in Run mode.
-
- (+) Entry:
- (++) VCORE in range2
- (++) Decrease the system frequency tonot exceed the frequency of MSI frequency range1.
- (++) The regulator is forced in low power mode using the HAL_PWREx_EnableLowPowerRunMode()
- function.
- (+) Exit:
- (++) The regulator is forced in Main regulator mode using the HAL_PWREx_DisableLowPowerRunMode()
- function.
- (++) Increase the system frequency if needed.
-
- *** Sleep mode ***
- ==================
- [..]
- (+) Entry:
- The Sleep mode is entered by using the HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFx)
- functions with
- (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
- (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
-
- (+) Exit:
- (++) Any peripheral interrupt acknowledged by the nested vectored interrupt
- controller (NVIC) can wake up the device from Sleep mode.
-
- *** Low power sleep mode ***
- ============================
- [..]
- (+) Entry:
- The Low power sleep mode is entered by using the HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFx)
- functions with
- (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
- (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
- (+) The Flash memory can be switched off by using the control bits (SLEEP_PD in the FLASH_ACR register.
- This reduces power consumption but increases the wake-up time.
-
- (+) Exit:
- (++) If the WFI instruction was used to enter Low power sleep mode, any peripheral interrupt
- acknowledged by the nested vectored interrupt controller (NVIC) can wake up the device
- from Low power sleep mode. If the WFE instruction was used to enter Low power sleep mode,
- the MCU exits Sleep mode as soon as an event occurs.
-
- *** Stop mode ***
- =================
- [..]
- The Stop mode is based on the Cortex-M3 deepsleep mode combined with peripheral
- clock gating. The voltage regulator can be configured either in normal or low-power mode.
- In Stop mode, all clocks in the VCORE domain are stopped, the PLL, the MSI, the HSI and
- the HSE RC oscillators are disabled. Internal SRAM and register contents are preserved.
- To get the lowest consumption in Stop mode, the internal Flash memory also enters low
- power mode. When the Flash memory is in power-down mode, an additional startup delay is
- incurred when waking up from Stop mode.
- To minimize the consumption In Stop mode, VREFINT, the BOR, PVD, and temperature
- sensor can be switched off before entering Stop mode. They can be switched on again by
- software after exiting Stop mode using the ULP bit in the PWR_CR register.
- In Stop mode, all I/O pins keep the same state as in Run mode.
-
- (+) Entry:
- The Stop mode is entered using the HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI )
- function with:
- (++) Main regulator ON.
- (++) Low Power regulator ON.
- (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
- (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
- (+) Exit:
- (++) By issuing an interrupt or a wakeup event, the MSI RC oscillator is selected as system clock.
-
- *** Standby mode ***
- ====================
- [..]
- The Standby mode allows to achieve the lowest power consumption. It is based on the
- Cortex-M3 deepsleep mode, with the voltage regulator disabled. The VCORE domain is
- consequently powered off. The PLL, the MSI, the HSI oscillator and the HSE oscillator are
- also switched off. SRAM and register contents are lost except for the RTC registers, RTC
- backup registers and Standby circuitry.
-
- To minimize the consumption In Standby mode, VREFINT, the BOR, PVD, and temperature
- sensor can be switched off before entering the Standby mode. They can be switched
- on again by software after exiting the Standby mode.
- function.
-
- (+) Entry:
- (++) The Standby mode is entered using the HAL_PWR_EnterSTANDBYMode() function.
- (+) Exit:
- (++) WKUP pin rising edge, RTC alarm (Alarm A and Alarm B), RTC wakeup,
- tamper event, time-stamp event, external reset in NRST pin, IWDG reset.
-
- *** Auto-wakeup (AWU) from low-power mode ***
- =============================================
- [..]
- The MCU can be woken up from low-power mode by an RTC Alarm event, an RTC
- Wakeup event, a tamper event, a time-stamp event, or a comparator event,
- without depending on an external interrupt (Auto-wakeup mode).
-
- (+) RTC auto-wakeup (AWU) from the Stop mode
- (++) To wake up from the Stop mode with an RTC alarm event, it is necessary to:
- (+++) Configure the EXTI Line 17 to be sensitive to rising edges (Interrupt
- or Event modes) and Enable the RTC Alarm Interrupt using the HAL_RTC_SetAlarm_IT()
- function
- (+++) Configure the RTC to generate the RTC alarm using the HAL_RTC_Init()
- and HAL_RTC_SetTime() functions.
- (++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it
- is necessary to:
- (+++) Configure the EXTI Line 19 to be sensitive to rising edges (Interrupt or Event modes) and
- Enable the RTC Tamper or time stamp Interrupt using the HAL_RTCEx_SetTamper_IT()
- or HAL_RTCEx_SetTimeStamp_IT() functions.
- (++) To wake up from the Stop mode with an RTC WakeUp event, it is necessary to:
- (+++) Configure the EXTI Line 20 to be sensitive to rising edges (Interrupt or Event modes) and
- Enable the RTC WakeUp Interrupt using the HAL_RTCEx_SetWakeUpTimer_IT() function.
- (+++) Configure the RTC to generate the RTC WakeUp event using the HAL_RTCEx_SetWakeUpTimer()
- function.
-
- (+) RTC auto-wakeup (AWU) from the Standby mode
- (++) To wake up from the Standby mode with an RTC alarm event, it is necessary to:
- (+++) Enable the RTC Alarm Interrupt using the HAL_RTC_SetAlarm_IT() function.
- (+++) Configure the RTC to generate the RTC alarm using the HAL_RTC_Init()
- and HAL_RTC_SetTime() functions.
- (++) To wake up from the Standby mode with an RTC Tamper or time stamp event, it
- is necessary to:
- (+++) Enable the RTC Tamper or time stamp Interrupt and Configure the RTC to
- detect the tamper or time stamp event using the HAL_RTCEx_SetTimeStamp_IT()
- or HAL_RTCEx_SetTamper_IT()functions.
- (++) To wake up from the Standby mode with an RTC WakeUp event, it is necessary to:
- (+++) Enable the RTC WakeUp Interrupt and Configure the RTC to generate the RTC WakeUp event
- using the HAL_RTCEx_SetWakeUpTimer_IT() and HAL_RTCEx_SetWakeUpTimer() functions.
-
- (+) Comparator auto-wakeup (AWU) from the Stop mode
- (++) To wake up from the Stop mode with an comparator 1 or comparator 2 wakeup
- event, it is necessary to:
- (+++) Configure the EXTI Line 21 or EXTI Line 22 for comparator to be sensitive to to the
- selected edges (falling, rising or falling and rising) (Interrupt or Event modes) using
- the COMP functions.
- (+++) Configure the comparator to generate the event.
-
-
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD).
- * @param sConfigPVD: pointer to an PWR_PVDTypeDef structure that contains the configuration
- * information for the PVD.
- * @note Refer to the electrical characteristics of your device datasheet for
- * more details about the voltage threshold corresponding to each
- * detection level.
- * @retval None
- */
-void HAL_PWR_PVDConfig(PWR_PVDTypeDef *sConfigPVD)
-{
- /* Check the parameters */
- assert_param(IS_PWR_PVD_LEVEL(sConfigPVD->PVDLevel));
- assert_param(IS_PWR_PVD_MODE(sConfigPVD->Mode));
-
- /* Set PLS[7:5] bits according to PVDLevel value */
- MODIFY_REG(PWR->CR, PWR_CR_PLS, sConfigPVD->PVDLevel);
-
- /* Clear any previous config. Keep it clear if no event or IT mode is selected */
- __HAL_PWR_PVD_EXTI_DISABLE_EVENT();
- __HAL_PWR_PVD_EXTI_DISABLE_IT();
- __HAL_PWR_PVD_EXTI_CLEAR_EGDE_TRIGGER();
-
- /* Configure interrupt mode */
- if((sConfigPVD->Mode & PVD_MODE_IT) == PVD_MODE_IT)
- {
- __HAL_PWR_PVD_EXTI_ENABLE_IT();
- }
-
- /* Configure event mode */
- if((sConfigPVD->Mode & PVD_MODE_EVT) == PVD_MODE_EVT)
- {
- __HAL_PWR_PVD_EXTI_ENABLE_EVENT();
- }
-
- /* Configure the edge */
- if((sConfigPVD->Mode & PVD_RISING_EDGE) == PVD_RISING_EDGE)
- {
- __HAL_PWR_PVD_EXTI_SET_RISING_EDGE_TRIGGER();
- }
-
- if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE)
- {
- __HAL_PWR_PVD_EXTI_SET_FALLING_EGDE_TRIGGER();
- }
-}
-
-/**
- * @brief Enables the Power Voltage Detector(PVD).
- * @retval None
- */
-void HAL_PWR_EnablePVD(void)
-{
- /* Enable the power voltage detector */
- *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)ENABLE;
-}
-
-/**
- * @brief Disables the Power Voltage Detector(PVD).
- * @retval None
- */
-void HAL_PWR_DisablePVD(void)
-{
- /* Disable the power voltage detector */
- *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)DISABLE;
-}
-
-/**
- * @brief Enables the WakeUp PINx functionality.
- * @param WakeUpPinx: Specifies the Power Wake-Up pin to enable.
- * This parameter can be one of the following values:
- * @arg PWR_WAKEUP_PIN1
- * @arg PWR_WAKEUP_PIN2
- * @arg PWR_WAKEUP_PIN3: Only on product with GPIOE available
- * @retval None
- */
-void HAL_PWR_EnableWakeUpPin(uint32_t WakeUpPinx)
-{
- /* Check the parameter */
- assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));
- /* Enable the EWUPx pin */
- *(__IO uint32_t *) CSR_EWUP_BB(WakeUpPinx) = (uint32_t)ENABLE;
-}
-
-/**
- * @brief Disables the WakeUp PINx functionality.
- * @param WakeUpPinx: Specifies the Power Wake-Up pin to disable.
- * This parameter can be one of the following values:
- * @arg PWR_WAKEUP_PIN1
- * @arg PWR_WAKEUP_PIN2
- * @arg PWR_WAKEUP_PIN3: Only on product with GPIOE available
- * @retval None
- */
-void HAL_PWR_DisableWakeUpPin(uint32_t WakeUpPinx)
-{
- /* Check the parameter */
- assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));
- /* Disable the EWUPx pin */
- *(__IO uint32_t *) CSR_EWUP_BB(WakeUpPinx) = (uint32_t)DISABLE;
-}
-
-/**
- * @brief Enters Sleep mode.
- * @note In Sleep mode, all I/O pins keep the same state as in Run mode.
- * @param Regulator: Specifies the regulator state in SLEEP mode.
- * This parameter can be one of the following values:
- * @arg PWR_MAINREGULATOR_ON: SLEEP mode with regulator ON
- * @arg PWR_LOWPOWERREGULATOR_ON: SLEEP mode with low power regulator ON
- * @param SLEEPEntry: Specifies if SLEEP mode is entered with WFI or WFE instruction.
- * When WFI entry is used, tick interrupt have to be disabled if not desired as
- * the interrupt wake up source.
- * This parameter can be one of the following values:
- * @arg PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
- * @arg PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
- * @retval None
- */
-void HAL_PWR_EnterSLEEPMode(uint32_t Regulator, uint8_t SLEEPEntry)
-{
- /* Check the parameters */
- assert_param(IS_PWR_REGULATOR(Regulator));
- assert_param(IS_PWR_SLEEP_ENTRY(SLEEPEntry));
-
- /* Select the regulator state in Sleep mode: Set PDDS and LPSDSR bit according to PWR_Regulator value */
- MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPSDSR), Regulator);
-
- /* Clear SLEEPDEEP bit of Cortex System Control Register */
- CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
-
- /* Select SLEEP mode entry -------------------------------------------------*/
- if(SLEEPEntry == PWR_SLEEPENTRY_WFI)
- {
- /* Request Wait For Interrupt */
- __WFI();
- }
- else
- {
- /* Request Wait For Event */
- __SEV();
- __WFE();
- __WFE();
- }
-}
-
-/**
- * @brief Enters Stop mode.
- * @note In Stop mode, all I/O pins keep the same state as in Run mode.
- * @note When exiting Stop mode by using an interrupt or a wakeup event,
- * MSI RC oscillator is selected as system clock.
- * @note When the voltage regulator operates in low power mode, an additional
- * startup delay is incurred when waking up from Stop mode.
- * By keeping the internal regulator ON during Stop mode, the consumption
- * is higher although the startup time is reduced.
- * @param Regulator: Specifies the regulator state in Stop mode.
- * This parameter can be one of the following values:
- * @arg PWR_MAINREGULATOR_ON: Stop mode with regulator ON
- * @arg PWR_LOWPOWERREGULATOR_ON: Stop mode with low power regulator ON
- * @param STOPEntry: Specifies if Stop mode in entered with WFI or WFE instruction.
- * This parameter can be one of the following values:
- * @arg PWR_STOPENTRY_WFI: Enter Stop mode with WFI instruction
- * @arg PWR_STOPENTRY_WFE: Enter Stop mode with WFE instruction
- * @retval None
- */
-void HAL_PWR_EnterSTOPMode(uint32_t Regulator, uint8_t STOPEntry)
-{
- /* Check the parameters */
- assert_param(IS_PWR_REGULATOR(Regulator));
- assert_param(IS_PWR_STOP_ENTRY(STOPEntry));
-
- /* Select the regulator state in Stop mode: Set PDDS and LPSDSR bit according to PWR_Regulator value */
- MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPSDSR), Regulator);
-
- /* Set SLEEPDEEP bit of Cortex System Control Register */
- SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
-
- /* Select Stop mode entry --------------------------------------------------*/
- if(STOPEntry == PWR_STOPENTRY_WFI)
- {
- /* Request Wait For Interrupt */
- __WFI();
- }
- else
- {
- /* Request Wait For Event */
- __SEV();
- __WFE();
- __WFE();
- }
- /* Reset SLEEPDEEP bit of Cortex System Control Register */
- CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
-}
-
-/**
- * @brief Enters Standby mode.
- * @note In Standby mode, all I/O pins are high impedance except for:
- * - Reset pad (still available)
- * - RTC_AF1 pin (PC13) if configured for tamper, time-stamp, RTC
- * Alarm out, or RTC clock calibration out.
- * - WKUP pin 1 (PA0) if enabled.
- * - WKUP pin 2 (PC13) if enabled.
- * - WKUP pin 3 (PE6) if enabled.
- * @retval None
- */
-void HAL_PWR_EnterSTANDBYMode(void)
-{
- /* Select Standby mode */
- SET_BIT(PWR->CR, PWR_CR_PDDS);
-
- /* Set SLEEPDEEP bit of Cortex System Control Register */
- SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
-
- /* This option is used to ensure that store operations are completed */
-#if defined ( __CC_ARM)
- __force_stores();
-#endif
- /* Request Wait For Interrupt */
- __WFI();
-}
-
-/**
- * @brief This function handles the PWR PVD interrupt request.
- * @note This API should be called under the PVD_IRQHandler().
- * @retval None
- */
-void HAL_PWR_PVD_IRQHandler(void)
-{
- /* Check PWR exti flag */
- if(__HAL_PWR_PVD_EXTI_GET_FLAG() != RESET)
- {
- /* PWR PVD interrupt user callback */
- HAL_PWR_PVDCallback();
-
- /* Clear PWR Exti pending bit */
- __HAL_PWR_PVD_EXTI_CLEAR_FLAG();
- }
-}
-
-/**
- * @brief PWR PVD interrupt callback
- * @retval None
- */
-__weak void HAL_PWR_PVDCallback(void)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_PWR_PVDCallback could be implemented in the user file
- */
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-#endif /* HAL_PWR_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
