lib/main/STM32F7/Drivers/STM32F7xx_HAL_Driver/Src/stm32f7xx_ll_pwr.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f7xx_ll_pwr.c
   4   * @author  MCD Application Team
   5   * @brief   PWR LL module driver.
   6   ******************************************************************************
   7   * @attention
   8   *
   9   * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
  10   * All rights reserved.</center></h2>
  11   *
  12   * This software component is licensed by ST under BSD 3-Clause license,
  13   * the "License"; You may not use this file except in compliance with the
  14   * License. You may obtain a copy of the License at:
  15   *                        opensource.org/licenses/BSD-3-Clause
  16   *
  17   ******************************************************************************
  18   */
  19 #if defined(USE_FULL_LL_DRIVER)
  20
  21 /* Includes ------------------------------------------------------------------*/
  22 #include "stm32f7xx_ll_pwr.h"
  23 #include "stm32f7xx_ll_bus.h"
  24
  25 /** @addtogroup STM32F7xx_LL_Driver
  26   * @{
  27   */
  28
  29 #if defined(PWR)
  30
  31 /** @defgroup PWR_LL PWR
  32   * @{
  33   */
  34
  35 /* Private types -------------------------------------------------------------*/
  36 /* Private variables ---------------------------------------------------------*/
  37 /* Private constants ---------------------------------------------------------*/
  38 /* Private macros ------------------------------------------------------------*/
  39 /* Private function prototypes -----------------------------------------------*/
  40
  41 /* Exported functions --------------------------------------------------------*/
  42 /** @addtogroup PWR_LL_Exported_Functions
  43   * @{
  44   */
  45
  46 /** @addtogroup PWR_LL_EF_Init
  47   * @{
  48   */
  49
  50 /**
  51   * @brief  De-initialize the PWR registers to their default reset values.
  52   * @retval An ErrorStatus enumeration value:
  53   *          - SUCCESS: PWR registers are de-initialized
  54   *          - ERROR: not applicable
  55   */
  56 ErrorStatus LL_PWR_DeInit(void)
  57 {
  58   /* Force reset of PWR clock */
  59   LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_PWR);
  60
  61   /* Release reset of PWR clock */
  62   LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_PWR);
  63
  64   WRITE_REG(PWR->CR2, (PWR_CR2_CWUPF1 | PWR_CR2_CWUPF2 | PWR_CR2_CWUPF3 | PWR_CR2_CWUPF4 | PWR_CR2_CWUPF5 | PWR_CR2_CWUPF6));
  65
  66   return SUCCESS;
  67 }
  68
  69 /**
  70   * @}
  71   */
  72
  73 /**
  74   * @}
  75   */
  76
  77 /**
  78   * @}
  79   */
  80 #endif /* defined(PWR) */
  81 /**
  82   * @}
  83   */
  84
  85 #endif /* USE_FULL_LL_DRIVER */
  86
  87 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/