1 /**
2 ******************************************************************************
3 * @file stm32f7xx_ll_pwr.c
4 * @author MCD Application Team
5 * @brief PWR LL module driver.
6 ******************************************************************************
7 * @attention
8 *
9 * Copyright (c) 2017 STMicroelectronics.
10 * All rights reserved.
11 *
12 * This software is licensed under terms that can be found in the LICENSE file
13 * in the root directory of this software component.
14 * If no LICENSE file comes with this software, it is provided AS-IS.
15 *
16 ******************************************************************************
17 */
18 #if defined(USE_FULL_LL_DRIVER)
19
20 /* Includes ------------------------------------------------------------------*/
21 #include "stm32f7xx_ll_pwr.h"
22 #include "stm32f7xx_ll_bus.h"
23
24 /** @addtogroup STM32F7xx_LL_Driver
25 * @{
26 */
27
28 #if defined(PWR)
29
30 /** @defgroup PWR_LL PWR
31 * @{
32 */
33
34 /* Private types -------------------------------------------------------------*/
35 /* Private variables ---------------------------------------------------------*/
36 /* Private constants ---------------------------------------------------------*/
37 /* Private macros ------------------------------------------------------------*/
38 /* Private function prototypes -----------------------------------------------*/
39
40 /* Exported functions --------------------------------------------------------*/
41 /** @addtogroup PWR_LL_Exported_Functions
42 * @{
43 */
44
45 /** @addtogroup PWR_LL_EF_Init
46 * @{
47 */
48
49 /**
50 * @brief De-initialize the PWR registers to their default reset values.
51 * @retval An ErrorStatus enumeration value:
52 * - SUCCESS: PWR registers are de-initialized
53 * - ERROR: not applicable
54 */
LL_PWR_DeInit(void)55 ErrorStatus LL_PWR_DeInit(void)
56 {
57 /* Force reset of PWR clock */
58 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_PWR);
59
60 /* Release reset of PWR clock */
61 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_PWR);
62
63 WRITE_REG(PWR->CR2, (PWR_CR2_CWUPF1 | PWR_CR2_CWUPF2 | PWR_CR2_CWUPF3 | PWR_CR2_CWUPF4 | PWR_CR2_CWUPF5 | PWR_CR2_CWUPF6));
64
65 return SUCCESS;
66 }
67
68 /**
69 * @}
70 */
71
72 /**
73 * @}
74 */
75
76 /**
77 * @}
78 */
79 #endif /* defined(PWR) */
80 /**
81 * @}
82 */
83
84 #endif /* USE_FULL_LL_DRIVER */
85
86
