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/**
******************************************************************************
* @file stm32l1xx_hal_pwr_ex.c
* @author MCD Application Team
* @brief Extended PWR HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Power Controller (PWR) peripheral:
* + Extended Initialization and de-initialization functions
* + Extended Peripheral Control functions
*
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2017 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l1xx_hal.h"
/** @addtogroup STM32L1xx_HAL_Driver
* @{
*/
/** @defgroup PWREx PWREx
* @brief PWR HAL module driver
* @{
*/
#ifdef HAL_PWR_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup PWREx_Exported_Functions PWREx Exported Functions
* @{
*/
/** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended Features Functions
* @brief Low Power modes configuration functions
*
@verbatim
===============================================================================
##### Peripheral extended features functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Return Voltage Scaling Range.
* @retval VOS bit field (PWR_REGULATOR_VOLTAGE_SCALE1, PWR_REGULATOR_VOLTAGE_SCALE2 or PWR_REGULATOR_VOLTAGE_SCALE3)
*/
uint32_t HAL_PWREx_GetVoltageRange(void)
{
return (PWR->CR & PWR_CR_VOS);
}
/**
* @brief Enables the Fast WakeUp from Ultra Low Power mode.
* @note This bit works in conjunction with ULP bit.
* Means, when ULP = 1 and FWU = 1 :VREFINT startup time is ignored when
* exiting from low power mode.
* @retval None
*/
void HAL_PWREx_EnableFastWakeUp(void)
{
/* Enable the fast wake up */
*(__IO uint32_t *) CR_FWU_BB = (uint32_t)ENABLE;
}
/**
* @brief Disables the Fast WakeUp from Ultra Low Power mode.
* @retval None
*/
void HAL_PWREx_DisableFastWakeUp(void)
{
/* Disable the fast wake up */
*(__IO uint32_t *) CR_FWU_BB = (uint32_t)DISABLE;
}
/**
* @brief Enables the Ultra Low Power mode
* @retval None
*/
void HAL_PWREx_EnableUltraLowPower(void)
{
/* Enable the Ultra Low Power mode */
*(__IO uint32_t *) CR_ULP_BB = (uint32_t)ENABLE;
}
/**
* @brief Disables the Ultra Low Power mode
* @retval None
*/
void HAL_PWREx_DisableUltraLowPower(void)
{
/* Disable the Ultra Low Power mode */
*(__IO uint32_t *) CR_ULP_BB = (uint32_t)DISABLE;
}
/**
* @brief Enters the Low Power Run mode.
* @note Low power run mode can only be entered when VCORE is in range 2.
* In addition, the dynamic voltage scaling must not be used when Low
* power run mode is selected. Only Stop and Sleep modes with regulator
* configured in Low power mode is allowed when Low power run mode is
* selected.
* @note In Low power run mode, all I/O pins keep the same state as in Run mode.
* @retval None
*/
void HAL_PWREx_EnableLowPowerRunMode(void)
{
/* Enters the Low Power Run mode */
*(__IO uint32_t *) CR_LPSDSR_BB = (uint32_t)ENABLE;
*(__IO uint32_t *) CR_LPRUN_BB = (uint32_t)ENABLE;
}
/**
* @brief Exits the Low Power Run mode.
* @retval None
*/
HAL_StatusTypeDef HAL_PWREx_DisableLowPowerRunMode(void)
{
/* Exits the Low Power Run mode */
*(__IO uint32_t *) CR_LPRUN_BB = (uint32_t)DISABLE;
*(__IO uint32_t *) CR_LPSDSR_BB = (uint32_t)DISABLE;
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_PWR_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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