/** ****************************************************************************** * @file stm32f0xx_hal_pwr_ex.c * @author MCD Application Team * @version V1.1.0 * @date 03-Oct-2014 * @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 * *

© COPYRIGHT(c) 2014 STMicroelectronics

* * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f0xx_hal.h" /** @addtogroup STM32F0xx_HAL_Driver * @{ */ /** @defgroup PWREx PWREx Extended HAL module driver * @brief PWREx HAL module driver * @{ */ #ifdef HAL_PWR_MODULE_ENABLED /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /** @defgroup PWREx_Private_Constants PWREx Private Constants * @{ */ #define PVD_MODE_IT ((uint32_t)0x00010000) #define PVD_MODE_EVT ((uint32_t)0x00020000) #define PVD_RISING_EDGE ((uint32_t)0x00000001) #define PVD_FALLING_EDGE ((uint32_t)0x00000002) /** * @} */ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Exported functions ---------------------------------------------------------*/ /** @defgroup PWREx_Exported_Functions PWREx Exported Functions * @{ */ /** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended Control Functions * @brief Extended Peripheral Control functions * @verbatim =============================================================================== ##### Peripheral extended control functions ##### =============================================================================== *** PVD configuration *** ========================= [..] (+) The PVD is used to monitor the VDD power supply by comparing it to a threshold selected by the PVD Level (PLS[2:0] bits in the PWR_CR). (+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower than the PVD threshold. This event is internally connected to the EXTI line16 and can generate an interrupt if enabled. This is done through HAL_PWR_PVDConfig(), HAL_PWR_EnablePVD() functions. (+) The PVD is stopped in Standby mode. -@- PVD is not available on STM32F030x4/x6/x8 *** VDDIO2 Monitor Configuration *** ==================================== [..] (+) VDDIO2 monitor is used to monitor the VDDIO2 power supply by comparing it to VREFInt Voltage (+) This monitor is internally connected to the EXTI line31 and can generate an interrupt if enabled. This is done through HAL_PWR_EnableVddio2Monitor() function. -@- VDDIO2 is available on STM32F07x/09x/04x @endverbatim * @{ */ #if defined (STM32F031x6) || defined (STM32F051x8) || \ defined (STM32F071xB) || defined (STM32F091xC) || \ defined (STM32F042x6) || defined (STM32F072xB) /** * @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD). * @param sConfigPVD: pointer to an PWR_PVDTypeDef structure that contains the configuration * information for the PVD. * @note Refer to the electrical characteristics of your device datasheet for * more details about the voltage threshold corresponding to each * detection level. * @retval None */ void HAL_PWR_PVDConfig(PWR_PVDTypeDef *sConfigPVD) { /* Check the parameters */ assert_param(IS_PWR_PVD_LEVEL(sConfigPVD->PVDLevel)); assert_param(IS_PWR_PVD_MODE(sConfigPVD->Mode)); /* Set PLS[7:5] bits according to PVDLevel value */ MODIFY_REG(PWR->CR, PWR_CR_PLS, sConfigPVD->PVDLevel); /* Clear any previous config. Keep it clear if no event or IT mode is selected */ __HAL_PWR_PVD_EXTI_DISABLE_EVENT(); __HAL_PWR_PVD_EXTI_DISABLE_IT(); __HAL_PWR_PVD_EXTI_CLEAR_EGDE_TRIGGER(); /* Configure interrupt mode */ if((sConfigPVD->Mode & PVD_MODE_IT) == PVD_MODE_IT) { __HAL_PWR_PVD_EXTI_ENABLE_IT(); } /* Configure event mode */ if((sConfigPVD->Mode & PVD_MODE_EVT) == PVD_MODE_EVT) { __HAL_PWR_PVD_EXTI_ENABLE_EVENT(); } /* Configure the edge */ if((sConfigPVD->Mode & PVD_RISING_EDGE) == PVD_RISING_EDGE) { __HAL_PWR_PVD_EXTI_SET_RISING_EDGE_TRIGGER(); } if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE) { __HAL_PWR_PVD_EXTI_SET_FALLING_EGDE_TRIGGER(); } } /** * @brief Enables the Power Voltage Detector(PVD). * @retval None */ void HAL_PWR_EnablePVD(void) { PWR->CR |= (uint32_t)PWR_CR_PVDE; } /** * @brief Disables the Power Voltage Detector(PVD). * @retval None */ void HAL_PWR_DisablePVD(void) { PWR->CR &= ~((uint32_t)PWR_CR_PVDE); } /** * @brief This function handles the PWR PVD interrupt request. * @note This API should be called under the PVD_IRQHandler() or PVD_VDDIO2_IRQHandler(). * @retval None */ void HAL_PWR_PVD_IRQHandler(void) { /* Check PWR exti flag */ if(__HAL_PWR_PVD_EXTI_GET_FLAG() != RESET) { /* PWR PVD interrupt user callback */ HAL_PWR_PVDCallback(); /* Clear PWR Exti pending bit */ __HAL_PWR_PVD_EXTI_CLEAR_FLAG(); } } /** * @brief PWR PVD interrupt callback * @retval None */ __weak void HAL_PWR_PVDCallback(void) { /* NOTE : This function Should not be modified, when the callback is needed, the HAL_PWR_PVDCallback could be implemented in the user file */ } #endif /* defined (STM32F031x6) || defined (STM32F051x8) || */ /* defined (STM32F071xB) || defined (STM32F091xC) || */ /* defined (STM32F042x6) || defined (STM32F072xB) */ #if defined (STM32F042x6) || defined (STM32F048xx) || \ defined (STM32F071xB) || defined (STM32F072xB) || defined (STM32F078xx) || \ defined (STM32F091xC) || defined (STM32F098xx) /** * @brief Enable VDDIO2 monitor: enable Exti 31 and falling edge detection. * @param None * @note If Exti 31 is enable correlty and VDDIO2 voltage goes below Vrefint, an interrupt is generated Irq line 1. NVIS has to be enable by user. * @retval None */ void HAL_PWR_EnableVddio2Monitor(void) { __HAL_PWR_VDDIO2_EXTI_ENABLE_IT(); __HAL_PWR_VDDIO2_EXTI_SET_FALLING_EGDE_TRIGGER(); } /** * @brief Disable the Vddio2 Monitor. * @retval None */ void HAL_PWR_DisableVddio2Monitor(void) { __HAL_PWR_VDDIO2_EXTI_DISABLE_IT(); __HAL_PWR_VDDIO2_EXTI_CLEAR_EGDE_TRIGGER(); } /** * @brief This function handles the PWR Vddio2 monitor interrupt request. * @note This API should be called under the VDDIO2_IRQHandler() PVD_VDDIO2_IRQHandler(). * @retval None */ void HAL_PWR_Vddio2Monitor_IRQHandler(void) { /* Check PWR exti flag */ if(__HAL_PWR_VDDIO2_EXTI_GET_FLAG() != RESET) { /* PWR Vddio2 monitor interrupt user callback */ HAL_PWR_Vddio2MonitorCallback(); /* Clear PWR Exti pending bit */ __HAL_PWR_VDDIO2_EXTI_CLEAR_FLAG(); } } /** * @brief PWR Vddio2 Monitor interrupt callback * @retval None */ __weak void HAL_PWR_Vddio2MonitorCallback(void) { /* NOTE : This function Should not be modified, when the callback is needed, the HAL_PWR_Vddio2MonitorCallback could be implemented in the user file */ } #endif /* defined (STM32F042x6) || defined (STM32F048xx) || \ defined (STM32F071xB) || defined (STM32F072xB) || defined (STM32F078xx) || \ defined (STM32F091xC) || defined (STM32F098xx) */ /** * @} */ /** * @} */ #endif /* HAL_PWR_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/