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   * @version V1.2.2
   6   * @date    14-April-2017
   7   * @brief   PWR LL module driver.
   8   ******************************************************************************
   9   * @attention
  10   *
  11   * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  12   *
  13   * Redistribution and use in source and binary forms, with or without modification,
  14   * are permitted provided that the following conditions are met:
  15   *   1. Redistributions of source code must retain the above copyright notice,
  16   *      this list of conditions and the following disclaimer.
  17   *   2. Redistributions in binary form must reproduce the above copyright notice,
  18   *      this list of conditions and the following disclaimer in the documentation
  19   *      and/or other materials provided with the distribution.
  20   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  21   *      may be used to endorse or promote products derived from this software
  22   *      without specific prior written permission.
  23   *
  24   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  28   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  31   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  32   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34   *
  35   ******************************************************************************
  36   */
  37 #if defined(USE_FULL_LL_DRIVER)
  38
  39 /* Includes ------------------------------------------------------------------*/
  40 #include "stm32f7xx_ll_pwr.h"
  41 #include "stm32f7xx_ll_bus.h"
  42
  43 /** @addtogroup STM32F7xx_LL_Driver
  44   * @{
  45   */
  46
  47 #if defined(PWR)
  48
  49 /** @defgroup PWR_LL PWR
  50   * @{
  51   */
  52
  53 /* Private types -------------------------------------------------------------*/
  54 /* Private variables ---------------------------------------------------------*/
  55 /* Private constants ---------------------------------------------------------*/
  56 /* Private macros ------------------------------------------------------------*/
  57 /* Private function prototypes -----------------------------------------------*/
  58
  59 /* Exported functions --------------------------------------------------------*/
  60 /** @addtogroup PWR_LL_Exported_Functions
  61   * @{
  62   */
  63
  64 /** @addtogroup PWR_LL_EF_Init
  65   * @{
  66   */
  67
  68 /**
  69   * @brief  De-initialize the PWR registers to their default reset values.
  70   * @retval An ErrorStatus enumeration value:
  71   *          - SUCCESS: PWR registers are de-initialized
  72   *          - ERROR: not applicable
  73   */
  74 ErrorStatus LL_PWR_DeInit(void)
  75 {
  76   /* Force reset of PWR clock */
  77   LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_PWR);
  78
  79   /* Release reset of PWR clock */
  80   LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_PWR);
  81
  82   WRITE_REG(PWR->CR2, (PWR_CR2_CWUPF1 | PWR_CR2_CWUPF2 | PWR_CR2_CWUPF3 | PWR_CR2_CWUPF4 | PWR_CR2_CWUPF5 | PWR_CR2_CWUPF6));
  83
  84   return SUCCESS;
  85 }
  86
  87 /**
  88   * @}
  89   */
  90
  91 /**
  92   * @}
  93   */
  94
  95 /**
  96   * @}
  97   */
  98 #endif /* defined(PWR) */
  99 /**
 100   * @}
 101   */
 102
 103 #endif /* USE_FULL_LL_DRIVER */
 104
 105 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/