tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_pwr_ex.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32l1xx_hal_pwr_ex.c
   4   * @author  MCD Application Team
   5   * @version V1.0.0
   6   * @date    5-September-2014
   7   * @brief   Extended PWR HAL module driver.
   8   *          This file provides firmware functions to manage the following
   9   *          functionalities of the Power Controller (PWR) peripheral:
  10   *           + Extended Initialization and de-initialization functions
  11   *           + Extended Peripheral Control functions
  12   *
  13   ******************************************************************************
  14   * @attention
  15   *
  16   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  17   *
  18   * Redistribution and use in source and binary forms, with or without modification,
  19   * are permitted provided that the following conditions are met:
  20   *   1. Redistributions of source code must retain the above copyright notice,
  21   *      this list of conditions and the following disclaimer.
  22   *   2. Redistributions in binary form must reproduce the above copyright notice,
  23   *      this list of conditions and the following disclaimer in the documentation
  24   *      and/or other materials provided with the distribution.
  25   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  26   *      may be used to endorse or promote products derived from this software
  27   *      without specific prior written permission.
  28   *
  29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  30   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  31   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  32   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  33   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  36   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  37   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  38   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  39   *
  40   ******************************************************************************
  41   */
  42
  43 /* Includes ------------------------------------------------------------------*/
  44 #include "stm32l1xx_hal.h"
  45
  46 /** @addtogroup STM32L1xx_HAL_Driver
  47   * @{
  48   */
  49
  50 /** @defgroup PWREx PWREx
  51   * @brief    PWR HAL module driver
  52   * @{
  53   */
  54
  55 #ifdef HAL_PWR_MODULE_ENABLED
  56
  57 /* Private typedef -----------------------------------------------------------*/
  58 /* Private define ------------------------------------------------------------*/
  59 /* Private macro -------------------------------------------------------------*/
  60 /* Private variables ---------------------------------------------------------*/
  61 /* Private function prototypes -----------------------------------------------*/
  62 /* Private functions ---------------------------------------------------------*/
  63
  64 /** @defgroup PWREx_Exported_Functions PWREx Exported Functions
  65   * @{
  66   */
  67
  68 /** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended Features Functions
  69   * @brief    Low Power modes configuration functions
  70   *
  71 @verbatim
  72
  73  ===============================================================================
  74                  ##### Peripheral extended features functions #####
  75  ===============================================================================
  76 @endverbatim
  77   * @{
  78   */
  79
  80 /**
  81   * @brief  Enables the Fast WakeUp from Ultra Low Power mode.
  82   * @note   This bit works in conjunction with ULP bit.
  83   *         Means, when ULP = 1 and FWU = 1 :VREFINT startup time is ignored when
  84   *         exiting from low power mode.
  85   * @retval None
  86   */
  87 void HAL_PWREx_EnableFastWakeUp(void)
  88 {
  89   /* Enable the fast wake up */
  90   *(__IO uint32_t *) CR_FWU_BB = (uint32_t)ENABLE;
  91 }
  92
  93 /**
  94   * @brief  Disables the Fast WakeUp from Ultra Low Power mode.
  95   * @retval None
  96   */
  97 void HAL_PWREx_DisableFastWakeUp(void)
  98 {
  99   /* Disable the fast wake up */
 100   *(__IO uint32_t *) CR_FWU_BB = (uint32_t)DISABLE;
 101 }
 102
 103 /**
 104   * @brief  Enables the Ultra Low Power mode
 105   * @retval None
 106   */
 107 void HAL_PWREx_EnableUltraLowPower(void)
 108 {
 109   /* Enable the Ultra Low Power mode */
 110   *(__IO uint32_t *) CR_ULP_BB = (uint32_t)ENABLE;
 111 }
 112
 113 /**
 114   * @brief  Disables the Ultra Low Power mode
 115   * @retval None
 116   */
 117 void HAL_PWREx_DisableUltraLowPower(void)
 118 {
 119   /* Disable the Ultra Low Power mode */
 120   *(__IO uint32_t *) CR_ULP_BB = (uint32_t)DISABLE;
 121 }
 122
 123 /**
 124   * @brief  Enters the Low Power Run mode.
 125   * @note   Low power run mode can only be entered when VCORE is in range 2.
 126   *         In addition, the dynamic voltage scaling must not be used when Low
 127   *         power run mode is selected. Only Stop and Sleep modes with regulator
 128   *         configured in Low power mode is allowed when Low power run mode is
 129   *         selected.
 130   * @note   In Low power run mode, all I/O pins keep the same state as in Run mode.
 131   * @retval None
 132   */
 133 void HAL_PWREx_EnableLowPowerRunMode(void)
 134 {
 135   /* Enters the Low Power Run mode */
 136   *(__IO uint32_t *) CR_LPSDSR_BB = (uint32_t)ENABLE;
 137   *(__IO uint32_t *) CR_LPRUN_BB  = (uint32_t)ENABLE;
 138 }
 139
 140 /**
 141   * @brief  Exits the Low Power Run mode.
 142   * @retval None
 143   */
 144 void HAL_PWREx_DisableLowPowerRunMode(void)
 145 {
 146   /* Exits the Low Power Run mode */
 147   *(__IO uint32_t *) CR_LPRUN_BB  = (uint32_t)DISABLE;
 148   *(__IO uint32_t *) CR_LPSDSR_BB = (uint32_t)DISABLE;
 149 }
 150
 151 /**
 152   * @}
 153   */
 154
 155 /**
 156   * @}
 157   */
 158
 159 #endif /* HAL_PWR_MODULE_ENABLED */
 160 /**
 161   * @}
 162   */
 163
 164 /**
 165   * @}
 166   */
 167
 168 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/