| /** |
| ****************************************************************************** |
| * @file stm32f0xx_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) 2016 STMicroelectronics</center></h2> |
| * |
| * 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 |
| * @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 (0x00010000U) |
| #define PVD_MODE_EVT (0x00020000U) |
| #define PVD_RISING_EDGE (0x00000001U) |
| #define PVD_FALLING_EDGE (0x00000002U) |
| /** |
| * @} |
| */ |
| |
| /* 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_ConfigPVD(), 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_PWREx_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_ConfigPVD(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_DISABLE_RISING_EDGE();__HAL_PWR_PVD_EXTI_DISABLE_FALLING_EDGE(); |
| |
| /* 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_ENABLE_RISING_EDGE(); |
| } |
| |
| if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE) |
| { |
| __HAL_PWR_PVD_EXTI_ENABLE_FALLING_EDGE(); |
| } |
| } |
| |
| /** |
| * @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. |
| * @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_PWREx_EnableVddio2Monitor(void) |
| { |
| __HAL_PWR_VDDIO2_EXTI_ENABLE_IT(); |
| __HAL_PWR_VDDIO2_EXTI_ENABLE_FALLING_EDGE(); |
| } |
| |
| /** |
| * @brief Disable the Vddio2 Monitor. |
| * @retval None |
| */ |
| void HAL_PWREx_DisableVddio2Monitor(void) |
| { |
| __HAL_PWR_VDDIO2_EXTI_DISABLE_IT(); |
| __HAL_PWR_VDDIO2_EXTI_DISABLE_FALLING_EDGE(); |
| |
| } |
| |
| /** |
| * @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_PWREx_Vddio2Monitor_IRQHandler(void) |
| { |
| /* Check PWR exti flag */ |
| if(__HAL_PWR_VDDIO2_EXTI_GET_FLAG() != RESET) |
| { |
| /* PWR Vddio2 monitor interrupt user callback */ |
| HAL_PWREx_Vddio2MonitorCallback(); |
| |
| /* Clear PWR Exti pending bit */ |
| __HAL_PWR_VDDIO2_EXTI_CLEAR_FLAG(); |
| } |
| } |
| |
| /** |
| * @brief PWR Vddio2 Monitor interrupt callback |
| * @retval None |
| */ |
| __weak void HAL_PWREx_Vddio2MonitorCallback(void) |
| { |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_PWREx_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****/ |