import CMSIS 1.3.2 (from STM32Cube FW_F4 V1.7.0)

1 files changed, 574 insertions, 516 deletions

diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c
index 6f9d91b..faa35da 100644
--- a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c
+++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c
@@ -1,516 +1,574 @@
-/**

-  ******************************************************************************

-  * @file    stm32f4xx_hal_pwr.c

-  * @author  MCD Application Team

-  * @version V1.1.0

-  * @date    19-June-2014

-  * @brief   PWR HAL module driver.

-  *          This file provides firmware functions to manage the following 

-  *          functionalities of the Power Controller (PWR) peripheral:

-  *           + Initialization and de-initialization functions

-  *           + Peripheral Control functions 

-  *         

-  ******************************************************************************

-  * @attention

-  *

-  * <h2><center>&copy; 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 "stm32f4xx_hal.h"

-

-/** @addtogroup STM32F4xx_HAL_Driver

-  * @{

-  */

-

-/** @defgroup PWR 

-  * @brief PWR HAL module driver

-  * @{

-  */

-

-#ifdef HAL_PWR_MODULE_ENABLED

-

-/* Private typedef -----------------------------------------------------------*/

-/* Private define ------------------------------------------------------------*/

-/* Private macro -------------------------------------------------------------*/

-/* Private variables ---------------------------------------------------------*/

-/* Private function prototypes -----------------------------------------------*/

-/* Private functions ---------------------------------------------------------*/

-

-/** @defgroup PWR_Private_Functions

-  * @{

-  */

-

-/** @defgroup PWR_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 and backup SRAM) 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 HAL PWR peripheral registers to their default reset values.

-  * @param None

-  * @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 and backup SRAM).

-  * @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the 

-  *         Backup Domain Access should be kept enabled.

-  * @param None

-  * @retval None

-  */

-void HAL_PWR_EnableBkUpAccess(void)

-{

-  *(__IO uint32_t *) CR_DBP_BB = (uint32_t)ENABLE;

-}

-

-/**

-  * @brief Disables access to the backup domain (RTC registers, RTC 

-  *         backup data registers and backup SRAM).

-  * @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the 

-  *         Backup Domain Access should be kept enabled.

-  * @param None

-  * @retval None

-  */

-void HAL_PWR_DisableBkUpAccess(void)

-{

-  *(__IO uint32_t *) CR_DBP_BB = (uint32_t)DISABLE;

-}

-

-/**

-  * @}

-  */

-

-/** @defgroup PWR_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).

-      (+) 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 is only one WakeUp pin: WakeUp Pin 1 on PA.00.

-

-    *** Low Power modes configuration ***

-    =====================================

-    [..]

-      The devices feature 3 low-power modes:

-      (+) Sleep mode: Cortex-M4 core stopped, peripherals kept running.

-      (+) Stop mode: all clocks are stopped, regulator running, regulator 

-          in low power mode

-      (+) Standby mode: 1.2V domain powered off.

-   

-   *** Sleep mode ***

-   ==================

-    [..]

-      (+) Entry:

-        The Sleep mode is entered by using the HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI)

-              functions with

-          (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction

-          (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction

-      

-      -@@- The Regulator parameter is not used for the STM32F4 family 

-              and is kept as parameter just to maintain compatibility with the 

-              lower power families (STM32L).

-      (+) Exit:

-        Any peripheral interrupt acknowledged by the nested vectored interrupt 

-              controller (NVIC) can wake up the device from Sleep mode.

-

-   *** Stop mode ***

-   =================

-    [..]

-      In Stop mode, all clocks in the 1.2V domain are stopped, the PLL, the HSI,

-      and the HSE RC oscillators are disabled. Internal SRAM and register contents 

-      are preserved.

-      The voltage regulator can be configured either in normal or low-power mode.

-      To minimize the consumption In Stop mode, FLASH can be powered off before 

-      entering the Stop mode using the HAL_PWR_EnableFlashPowerDown() function.

-      It can be switched on again by software after exiting the Stop mode using

-      the HAL_PWR_DisableFlashPowerDown() function. 

-

-      (+) Entry:

-         The Stop mode is entered using the HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON) 

-             function with:

-          (++) Main regulator ON.

-          (++) Low Power regulator ON.

-      (+) Exit:

-        Any EXTI Line (Internal or External) configured in Interrupt/Event mode.

-

-   *** Standby mode ***

-   ====================

-    [..]

-    (+)

-      The Standby mode allows to achieve the lowest power consumption. It is based 

-      on the Cortex-M4 deep sleep mode, with the voltage regulator disabled. 

-      The 1.2V domain is consequently powered off. The PLL, 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, backup SRAM and Standby 

-      circuitry.

-   

-      The voltage regulator is OFF.

-      

-      (++) 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 or a time-stamp event, without depending on 

-      an external interrupt (Auto-wakeup mode).

-

-      (+) RTC auto-wakeup (AWU) from the Stop and Standby modes

-       

-        (++) To wake up from the Stop mode with an RTC alarm event, it is necessary to 

-              configure the RTC to generate the RTC alarm using the HAL_RTC_SetAlarm_IT() function.

-

-        (++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it 

-             is necessary to 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 Stop mode with an RTC WakeUp event, it is necessary to

-              configure the RTC to generate the RTC WakeUp event using the HAL_RTCEx_SetWakeUpTimer_IT() function.

-

-@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)

-{

-  uint32_t tmpreg = 0;

-

-  /* Check the parameters */

-  assert_param(IS_PWR_PVD_LEVEL(sConfigPVD->PVDLevel));

-  assert_param(IS_PWR_PVD_MODE(sConfigPVD->Mode));

-  

-  tmpreg = PWR->CR;

-  

-  /* Clear PLS[7:5] bits */

-  tmpreg &= ~ (uint32_t)PWR_CR_PLS;

-  

-  /* Set PLS[7:5] bits according to PVDLevel value */

-  tmpreg |= sConfigPVD->PVDLevel;

-  

-  /* Store the new value */

-  PWR->CR = tmpreg;

-  

-  /* Configure the EXTI 16 interrupt */

-  if((sConfigPVD->Mode == PWR_MODE_IT_RISING_FALLING) ||\

-     (sConfigPVD->Mode == PWR_MODE_IT_FALLING) ||\

-     (sConfigPVD->Mode == PWR_MODE_IT_RISING)) 

-  {

-    __HAL_PVD_EXTI_ENABLE_IT(PWR_EXTI_LINE_PVD);

-  }

-  /* Clear the edge trigger  for the EXTI Line 16 (PVD) */

-  EXTI->RTSR &= ~EXTI_RTSR_TR16;

-  EXTI->FTSR &= ~EXTI_FTSR_TR16;  

-  /* Configure the rising edge */

-  if((sConfigPVD->Mode == PWR_MODE_IT_RISING_FALLING) ||\

-     (sConfigPVD->Mode == PWR_MODE_IT_RISING))

-  {

-    EXTI->RTSR |= PWR_EXTI_LINE_PVD;

-  }

-  /* Configure the falling edge */

-  if((sConfigPVD->Mode == PWR_MODE_IT_RISING_FALLING) ||\

-     (sConfigPVD->Mode == PWR_MODE_IT_FALLING))

-  {

-    EXTI->FTSR |= PWR_EXTI_LINE_PVD;

-  }

-}

-

-/**

-  * @brief Enables the Power Voltage Detector(PVD).

-  * @param None

-  * @retval None

-  */

-void HAL_PWR_EnablePVD(void)

-{

-  *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)ENABLE;

-}

-

-/**

-  * @brief Disables the Power Voltage Detector(PVD).

-  * @param None

-  * @retval None

-  */

-void HAL_PWR_DisablePVD(void)

-{

-  *(__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

-  * @retval None

-  */

-void HAL_PWR_EnableWakeUpPin(uint32_t WakeUpPinx)

-{

-  /* Check the parameter */

-  assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));

-  *(__IO uint32_t *) CSR_EWUP_BB = (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

-  * @retval None

-  */

-void HAL_PWR_DisableWakeUpPin(uint32_t WakeUpPinx)

-{

-  /* Check the parameter */

-  assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));  

-  *(__IO uint32_t *) CSR_EWUP_BB = (uint32_t)DISABLE;

-}

-  

-/**

-  * @brief Enters Sleep mode.

-  *   

-  * @note In Sleep mode, all I/O pins keep the same state as in Run mode.

-  * 

-  * @note In Sleep mode, the systick is stopped to avoid exit from this mode with

-  *       systick interrupt when used as time base for Timeout 

-  *                

-  * @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

-  * @note This parameter is not used for the STM32F4 family and is kept as parameter

-  *       just to maintain compatibility with the lower power families.

-  * @param SLEEPEntry: Specifies if SLEEP mode in entered with WFI or WFE instruction.

-  *          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 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 issuing an interrupt or a wakeup event, 

-  *         the HSI 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)

-{

-  uint32_t tmpreg = 0;

-  

-  /* Check the parameters */

-  assert_param(IS_PWR_REGULATOR(Regulator));

-  assert_param(IS_PWR_STOP_ENTRY(STOPEntry));

-  

-  /* Select the regulator state in Stop mode ---------------------------------*/

-  tmpreg = PWR->CR;

-  /* Clear PDDS and LPDS bits */

-  tmpreg &= (uint32_t)~(PWR_CR_PDDS | PWR_CR_LPDS);

-  

-  /* Set LPDS, MRLVDS and LPLVDS bits according to Regulator value */

-  tmpreg |= Regulator;

-  

-  /* Store the new value */

-  PWR->CR = tmpreg;

-  

-  /* Set SLEEPDEEP bit of Cortex System Control Register */

-  SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;

-  

-  /* Select Stop mode entry --------------------------------------------------*/

-  if(STOPEntry == PWR_STOPENTRY_WFI)

-  {   

-    /* Request Wait For Interrupt */

-    __WFI();

-  }

-  else

-  {

-    /* Request Wait For Event */

-    __WFE();

-  }

-  /* Reset SLEEPDEEP bit of Cortex System Control Register */

-  SCB->SCR &= (uint32_t)~((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.

-  *          - RTC_AF2 pin (PI8) if configured for tamper or time-stamp.  

-  *          - WKUP pin 1 (PA0) if enabled.       

-  * @param None

-  * @retval None

-  */

-void HAL_PWR_EnterSTANDBYMode(void)

-{

-  /* Select Standby mode */

-  PWR->CR |= PWR_CR_PDDS;

-  

-  /* Set SLEEPDEEP bit of Cortex System Control Register */

-  SCB->SCR |= 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().

-  * @param None

-  * @retval None

-  */

-void HAL_PWR_PVD_IRQHandler(void)

-{

-  /* Check PWR exti flag */

-  if(__HAL_PVD_EXTI_GET_FLAG(PWR_EXTI_LINE_PVD) != RESET)

-  {

-    /* PWR PVD interrupt user callback */

-    HAL_PWR_PVDCallback();

-    

-    /* Clear PWR Exti pending bit */

-    __HAL_PVD_EXTI_CLEAR_FLAG(PWR_EXTI_LINE_PVD);

-  }

-}

-

-/**

-  * @brief  PWR PVD interrupt callback

-  * @param  None 

-  * @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****/

+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_pwr.c
+  * @author  MCD Application Team
+  * @version V1.3.2
+  * @date    26-June-2015
+  * @brief   PWR HAL module driver.
+  *          This file provides firmware functions to manage the following
+  *          functionalities of the Power Controller (PWR) peripheral:
+  *           + Initialization and de-initialization functions
+  *           + Peripheral Control functions
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2015 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 "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup PWR PWR
+  * @brief PWR HAL module driver
+  * @{
+  */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @addtogroup PWR_Private_Constants
+  * @{
+  */
+
+/** @defgroup PWR_PVD_Mode_Mask PWR PVD Mode Mask
+  * @{
+  */
+#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 and backup SRAM) 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
+            __HAL_RCC_PWR_CLK_ENABLE() macro.
+        (+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Deinitializes the HAL PWR peripheral registers to their default reset values.
+  * @retval None
+  */
+void HAL_PWR_DeInit(void)
+{
+  __HAL_RCC_PWR_FORCE_RESET();
+  __HAL_RCC_PWR_RELEASE_RESET();
+}
+
+/**
+  * @brief Enables access to the backup domain (RTC registers, RTC
+  *         backup data registers and backup SRAM).
+  * @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
+  *         Backup Domain Access should be kept enabled.
+  * @retval None
+  */
+void HAL_PWR_EnableBkUpAccess(void)
+{
+  *(__IO uint32_t *) CR_DBP_BB = (uint32_t)ENABLE;
+}
+
+/**
+  * @brief Disables access to the backup domain (RTC registers, RTC
+  *         backup data registers and backup SRAM).
+  * @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
+  *         Backup Domain Access should be kept enabled.
+  * @retval None
+  */
+void HAL_PWR_DisableBkUpAccess(void)
+{
+  *(__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).
+      (+) 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_PWR_PVD_EXTI_ENABLE_IT() macro.
+      (+) The PVD is stopped in Standby mode.
+
+    *** Wake-up pin configuration ***
+    ================================
+    [..]
+      (+) Wake-up 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 is one Wake-up pin: Wake-up Pin 1 on PA.00.
+	        Only for STM32F446xx there are two Wake-Up pins: Pin1 on PA.00 and Pin 2 on PC.13
+
+    *** Low Power modes configuration ***
+    =====================================
+    [..]
+      The devices feature 3 low-power modes:
+      (+) Sleep mode: Cortex-M4 core stopped, peripherals kept running.
+      (+) Stop mode: all clocks are stopped, regulator running, regulator
+          in low power mode
+      (+) Standby mode: 1.2V domain powered off.
+
+   *** Sleep mode ***
+   ==================
+    [..]
+      (+) Entry:
+        The Sleep mode is entered by using the HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI)
+              functions with
+          (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
+          (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
+
+      -@@- The Regulator parameter is not used for the STM32F4 family
+              and is kept as parameter just to maintain compatibility with the
+              lower power families (STM32L).
+      (+) Exit:
+        Any peripheral interrupt acknowledged by the nested vectored interrupt
+              controller (NVIC) can wake up the device from Sleep mode.
+
+   *** Stop mode ***
+   =================
+    [..]
+      In Stop mode, all clocks in the 1.2V domain are stopped, the PLL, the HSI,
+      and the HSE RC oscillators are disabled. Internal SRAM and register contents
+      are preserved.
+      The voltage regulator can be configured either in normal or low-power mode.
+      To minimize the consumption In Stop mode, FLASH can be powered off before
+      entering the Stop mode using the HAL_PWREx_EnableFlashPowerDown() function.
+      It can be switched on again by software after exiting the Stop mode using
+      the HAL_PWREx_DisableFlashPowerDown() function.
+
+      (+) Entry:
+         The Stop mode is entered using the HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON)
+             function with:
+          (++) Main regulator ON.
+          (++) Low Power regulator ON.
+      (+) Exit:
+        Any EXTI Line (Internal or External) configured in Interrupt/Event mode.
+
+   *** Standby mode ***
+   ====================
+    [..]
+    (+)
+      The Standby mode allows to achieve the lowest power consumption. It is based
+      on the Cortex-M4 deep sleep mode, with the voltage regulator disabled.
+      The 1.2V domain is consequently powered off. The PLL, 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, backup SRAM and Standby
+      circuitry.
+
+      The voltage regulator is OFF.
+
+      (++) 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 wake-up,
+             tamper event, time-stamp event, external reset in NRST pin, IWDG reset.
+
+   *** Auto-wake-up (AWU) from low-power mode ***
+   =============================================
+    [..]
+
+     (+) The MCU can be woken up from low-power mode by an RTC Alarm event, an RTC
+      Wake-up event, a tamper event or a time-stamp event, without depending on
+      an external interrupt (Auto-wake-up mode).
+
+      (+) RTC auto-wake-up (AWU) from the Stop and Standby modes
+
+        (++) To wake up from the Stop mode with an RTC alarm event, it is necessary to
+              configure the RTC to generate the RTC alarm using the HAL_RTC_SetAlarm_IT() function.
+
+        (++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it
+             is necessary to 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 Stop mode with an RTC Wake-up event, it is necessary to
+              configure the RTC to generate the RTC Wake-up event using the HAL_RTCEx_SetWakeUpTimer_IT() function.
+
+@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_ConfigPVD(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_DISABLE_RISING_EDGE();
+  __HAL_PWR_PVD_EXTI_DISABLE_FALLING_EDGE();
+
+  /* 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_ENABLE_RISING_EDGE();
+  }
+
+  if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE)
+  {
+    __HAL_PWR_PVD_EXTI_ENABLE_FALLING_EDGE();
+  }
+}
+
+/**
+  * @brief Enables the Power Voltage Detector(PVD).
+  * @retval None
+  */
+void HAL_PWR_EnablePVD(void)
+{
+  *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)ENABLE;
+}
+
+/**
+  * @brief Disables the Power Voltage Detector(PVD).
+  * @retval None
+  */
+void HAL_PWR_DisablePVD(void)
+{
+  *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)DISABLE;
+}
+
+/**
+  * @brief Enables the Wake-up 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 only available in case of STM32F446xx devices
+  * @retval None
+  */
+void HAL_PWR_EnableWakeUpPin(uint32_t WakeUpPinx)
+{
+  /* Check the parameter */
+  assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));
+
+  /* Enable the wake up pin */
+  SET_BIT(PWR->CSR, WakeUpPinx);
+}
+
+/**
+  * @brief Disables the Wake-up 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 only available in case of STM32F446xx devices
+  * @retval None
+  */
+void HAL_PWR_DisableWakeUpPin(uint32_t WakeUpPinx)
+{
+  /* Check the parameter */
+  assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx));
+
+  /* Disable the wake up pin */
+  CLEAR_BIT(PWR->CSR, WakeUpPinx);
+}
+
+/**
+  * @brief Enters Sleep mode.
+  *
+  * @note In Sleep mode, all I/O pins keep the same state as in Run mode.
+  *
+  * @note In Sleep mode, the systick is stopped to avoid exit from this mode with
+  *       systick interrupt when used as time base for Timeout
+  *
+  * @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
+  * @note This parameter is not used for the STM32F4 family and is kept as parameter
+  *       just to maintain compatibility with the lower power families.
+  * @param SLEEPEntry: Specifies if SLEEP mode in entered with WFI or WFE instruction.
+  *          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));
+
+  /* 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 issuing an interrupt or a wake-up event,
+  *         the HSI 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 LPDS bits according to PWR_Regulator value */
+  MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPDS), 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.
+  *          - RTC_AF2 pin (PI8) if configured for tamper or time-stamp.
+  *          - WKUP pin 1 (PA0) 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
+   */
+}
+
+/**
+  * @brief Indicates Sleep-On-Exit when returning from Handler mode to Thread mode.
+  * @note Set SLEEPONEXIT bit of SCR register. When this bit is set, the processor
+  *       re-enters SLEEP mode when an interruption handling is over.
+  *       Setting this bit is useful when the processor is expected to run only on
+  *       interruptions handling.
+  * @retval None
+  */
+void HAL_PWR_EnableSleepOnExit(void)
+{
+  /* Set SLEEPONEXIT bit of Cortex System Control Register */
+  SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
+}
+
+/**
+  * @brief Disables Sleep-On-Exit feature when returning from Handler mode to Thread mode.
+  * @note Clears SLEEPONEXIT bit of SCR register. When this bit is set, the processor
+  *       re-enters SLEEP mode when an interruption handling is over.
+  * @retval None
+  */
+void HAL_PWR_DisableSleepOnExit(void)
+{
+  /* Clear SLEEPONEXIT bit of Cortex System Control Register */
+  CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
+}
+
+/**
+  * @brief Enables CORTEX M4 SEVONPEND bit.
+  * @note Sets SEVONPEND bit of SCR register. When this bit is set, this causes
+  *       WFE to wake up when an interrupt moves from inactive to pended.
+  * @retval None
+  */
+void HAL_PWR_EnableSEVOnPend(void)
+{
+  /* Set SEVONPEND bit of Cortex System Control Register */
+  SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
+}
+
+/**
+  * @brief Disables CORTEX M4 SEVONPEND bit.
+  * @note Clears SEVONPEND bit of SCR register. When this bit is set, this causes
+  *       WFE to wake up when an interrupt moves from inactive to pended.
+  * @retval None
+  */
+void HAL_PWR_DisableSEVOnPend(void)
+{
+  /* Clear SEVONPEND bit of Cortex System Control Register */
+  CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_PWR_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/