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| Rev | Author | Line No. | Line |
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| 2 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file stm32f0xx_hal_pwr_ex.c |
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| 4 | * @author MCD Application Team |
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| 5 | * @brief Extended PWR HAL module driver. |
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| 6 | * This file provides firmware functions to manage the following |
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| 7 | * functionalities of the Power Controller (PWR) peripheral: |
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| 8 | * + Extended Initialization and de-initialization functions |
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| 9 | * + Extended Peripheral Control functions |
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| 10 | * |
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| 11 | ****************************************************************************** |
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| 12 | * @attention |
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| 13 | * |
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| 14 | * <h2><center>© Copyright (c) 2016 STMicroelectronics. |
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| 15 | * All rights reserved.</center></h2> |
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| 16 | * |
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| 17 | * This software component is licensed by ST under BSD 3-Clause license, |
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| 18 | * the "License"; You may not use this file except in compliance with the |
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| 19 | * License. You may obtain a copy of the License at: |
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| 20 | * opensource.org/licenses/BSD-3-Clause |
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| 21 | * |
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| 22 | ****************************************************************************** |
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| 23 | */ |
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| 24 | |||
| 25 | /* Includes ------------------------------------------------------------------*/ |
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| 26 | #include "stm32f0xx_hal.h" |
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| 27 | |||
| 28 | /** @addtogroup STM32F0xx_HAL_Driver |
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| 29 | * @{ |
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| 30 | */ |
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| 31 | |||
| 32 | /** @defgroup PWREx PWREx |
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| 33 | * @brief PWREx HAL module driver |
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| 34 | * @{ |
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| 35 | */ |
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| 36 | |||
| 37 | #ifdef HAL_PWR_MODULE_ENABLED |
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| 38 | |||
| 39 | /* Private typedef -----------------------------------------------------------*/ |
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| 40 | /* Private define ------------------------------------------------------------*/ |
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| 41 | /** @defgroup PWREx_Private_Constants PWREx Private Constants |
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| 42 | * @{ |
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| 43 | */ |
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| 44 | #define PVD_MODE_IT (0x00010000U) |
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| 45 | #define PVD_MODE_EVT (0x00020000U) |
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| 46 | #define PVD_RISING_EDGE (0x00000001U) |
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| 47 | #define PVD_FALLING_EDGE (0x00000002U) |
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| 48 | /** |
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| 49 | * @} |
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| 50 | */ |
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| 51 | |||
| 52 | /* Private macro -------------------------------------------------------------*/ |
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| 53 | /* Private variables ---------------------------------------------------------*/ |
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| 54 | /* Private function prototypes -----------------------------------------------*/ |
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| 55 | /* Exported functions ---------------------------------------------------------*/ |
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| 56 | |||
| 57 | /** @defgroup PWREx_Exported_Functions PWREx Exported Functions |
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| 58 | * @{ |
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| 59 | */ |
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| 60 | |||
| 61 | /** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended Control Functions |
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| 62 | * @brief Extended Peripheral Control functions |
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| 63 | * |
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| 64 | @verbatim |
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| 65 | |||
| 66 | =============================================================================== |
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| 67 | ##### Peripheral extended control functions ##### |
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| 68 | =============================================================================== |
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| 69 | |||
| 70 | *** PVD configuration *** |
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| 71 | ========================= |
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| 72 | [..] |
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| 73 | (+) The PVD is used to monitor the VDD power supply by comparing it to a |
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| 74 | threshold selected by the PVD Level (PLS[2:0] bits in the PWR_CR). |
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| 75 | (+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower |
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| 76 | than the PVD threshold. This event is internally connected to the EXTI |
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| 77 | line16 and can generate an interrupt if enabled. This is done through |
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| 78 | HAL_PWR_ConfigPVD(), HAL_PWR_EnablePVD() functions. |
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| 79 | (+) The PVD is stopped in Standby mode. |
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| 80 | -@- PVD is not available on STM32F030x4/x6/x8 |
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| 81 | |||
| 82 | *** VDDIO2 Monitor Configuration *** |
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| 83 | ==================================== |
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| 84 | [..] |
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| 85 | (+) VDDIO2 monitor is used to monitor the VDDIO2 power supply by comparing it |
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| 86 | to VREFInt Voltage |
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| 87 | (+) This monitor is internally connected to the EXTI line31 |
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| 88 | and can generate an interrupt if enabled. This is done through |
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| 89 | HAL_PWREx_EnableVddio2Monitor() function. |
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| 90 | -@- VDDIO2 is available on STM32F07x/09x/04x |
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| 91 | |||
| 92 | @endverbatim |
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| 93 | * @{ |
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| 94 | */ |
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| 95 | |||
| 96 | #if defined (STM32F031x6) || defined (STM32F051x8) || \ |
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| 97 | defined (STM32F071xB) || defined (STM32F091xC) || \ |
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| 98 | defined (STM32F042x6) || defined (STM32F072xB) |
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| 99 | /** |
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| 100 | * @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD). |
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| 101 | * @param sConfigPVD pointer to an PWR_PVDTypeDef structure that contains the configuration |
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| 102 | * information for the PVD. |
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| 103 | * @note Refer to the electrical characteristics of your device datasheet for |
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| 104 | * more details about the voltage threshold corresponding to each |
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| 105 | * detection level. |
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| 106 | * @retval None |
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| 107 | */ |
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| 108 | void HAL_PWR_ConfigPVD(PWR_PVDTypeDef *sConfigPVD) |
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| 109 | { |
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| 110 | /* Check the parameters */ |
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| 111 | assert_param(IS_PWR_PVD_LEVEL(sConfigPVD->PVDLevel)); |
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| 112 | assert_param(IS_PWR_PVD_MODE(sConfigPVD->Mode)); |
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| 113 | |||
| 114 | /* Set PLS[7:5] bits according to PVDLevel value */ |
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| 115 | MODIFY_REG(PWR->CR, PWR_CR_PLS, sConfigPVD->PVDLevel); |
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| 116 | |||
| 117 | /* Clear any previous config. Keep it clear if no event or IT mode is selected */ |
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| 118 | __HAL_PWR_PVD_EXTI_DISABLE_EVENT(); |
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| 119 | __HAL_PWR_PVD_EXTI_DISABLE_IT(); |
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| 120 | __HAL_PWR_PVD_EXTI_DISABLE_RISING_EDGE();__HAL_PWR_PVD_EXTI_DISABLE_FALLING_EDGE(); |
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| 121 | |||
| 122 | /* Configure interrupt mode */ |
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| 123 | if((sConfigPVD->Mode & PVD_MODE_IT) == PVD_MODE_IT) |
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| 124 | { |
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| 125 | __HAL_PWR_PVD_EXTI_ENABLE_IT(); |
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| 126 | } |
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| 127 | |||
| 128 | /* Configure event mode */ |
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| 129 | if((sConfigPVD->Mode & PVD_MODE_EVT) == PVD_MODE_EVT) |
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| 130 | { |
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| 131 | __HAL_PWR_PVD_EXTI_ENABLE_EVENT(); |
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| 132 | } |
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| 133 | |||
| 134 | /* Configure the edge */ |
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| 135 | if((sConfigPVD->Mode & PVD_RISING_EDGE) == PVD_RISING_EDGE) |
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| 136 | { |
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| 137 | __HAL_PWR_PVD_EXTI_ENABLE_RISING_EDGE(); |
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| 138 | } |
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| 139 | |||
| 140 | if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE) |
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| 141 | { |
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| 142 | __HAL_PWR_PVD_EXTI_ENABLE_FALLING_EDGE(); |
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| 143 | } |
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| 144 | } |
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| 145 | |||
| 146 | /** |
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| 147 | * @brief Enables the Power Voltage Detector(PVD). |
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| 148 | * @retval None |
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| 149 | */ |
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| 150 | void HAL_PWR_EnablePVD(void) |
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| 151 | { |
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| 152 | PWR->CR |= (uint32_t)PWR_CR_PVDE; |
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| 153 | } |
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| 154 | |||
| 155 | /** |
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| 156 | * @brief Disables the Power Voltage Detector(PVD). |
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| 157 | * @retval None |
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| 158 | */ |
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| 159 | void HAL_PWR_DisablePVD(void) |
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| 160 | { |
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| 161 | PWR->CR &= ~((uint32_t)PWR_CR_PVDE); |
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| 162 | } |
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| 163 | |||
| 164 | /** |
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| 165 | * @brief This function handles the PWR PVD interrupt request. |
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| 166 | * @note This API should be called under the PVD_IRQHandler() or PVD_VDDIO2_IRQHandler(). |
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| 167 | * @retval None |
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| 168 | */ |
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| 169 | void HAL_PWR_PVD_IRQHandler(void) |
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| 170 | { |
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| 171 | /* Check PWR exti flag */ |
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| 172 | if(__HAL_PWR_PVD_EXTI_GET_FLAG() != RESET) |
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| 173 | { |
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| 174 | /* PWR PVD interrupt user callback */ |
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| 175 | HAL_PWR_PVDCallback(); |
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| 176 | |||
| 177 | /* Clear PWR Exti pending bit */ |
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| 178 | __HAL_PWR_PVD_EXTI_CLEAR_FLAG(); |
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| 179 | } |
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| 180 | } |
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| 181 | |||
| 182 | /** |
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| 183 | * @brief PWR PVD interrupt callback |
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| 184 | * @retval None |
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| 185 | */ |
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| 186 | __weak void HAL_PWR_PVDCallback(void) |
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| 187 | { |
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| 188 | /* NOTE : This function Should not be modified, when the callback is needed, |
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| 189 | the HAL_PWR_PVDCallback could be implemented in the user file |
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| 190 | */ |
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| 191 | } |
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| 192 | |||
| 193 | #endif /* defined (STM32F031x6) || defined (STM32F051x8) || */ |
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| 194 | /* defined (STM32F071xB) || defined (STM32F091xC) || */ |
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| 195 | /* defined (STM32F042x6) || defined (STM32F072xB) */ |
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| 196 | |||
| 197 | #if defined (STM32F042x6) || defined (STM32F048xx) || \ |
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| 198 | defined (STM32F071xB) || defined (STM32F072xB) || defined (STM32F078xx) || \ |
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| 199 | defined (STM32F091xC) || defined (STM32F098xx) |
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| 200 | /** |
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| 201 | * @brief Enable VDDIO2 monitor: enable Exti 31 and falling edge detection. |
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| 202 | * @note If Exti 31 is enable correlty and VDDIO2 voltage goes below Vrefint, |
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| 203 | an interrupt is generated Irq line 1. |
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| 204 | NVIS has to be enable by user. |
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| 205 | * @retval None |
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| 206 | */ |
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| 207 | void HAL_PWREx_EnableVddio2Monitor(void) |
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| 208 | { |
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| 209 | __HAL_PWR_VDDIO2_EXTI_ENABLE_IT(); |
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| 210 | __HAL_PWR_VDDIO2_EXTI_ENABLE_FALLING_EDGE(); |
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| 211 | } |
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| 212 | |||
| 213 | /** |
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| 214 | * @brief Disable the Vddio2 Monitor. |
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| 215 | * @retval None |
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| 216 | */ |
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| 217 | void HAL_PWREx_DisableVddio2Monitor(void) |
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| 218 | { |
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| 219 | __HAL_PWR_VDDIO2_EXTI_DISABLE_IT(); |
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| 220 | __HAL_PWR_VDDIO2_EXTI_DISABLE_FALLING_EDGE(); |
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| 221 | |||
| 222 | } |
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| 223 | |||
| 224 | /** |
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| 225 | * @brief This function handles the PWR Vddio2 monitor interrupt request. |
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| 226 | * @note This API should be called under the VDDIO2_IRQHandler() PVD_VDDIO2_IRQHandler(). |
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| 227 | * @retval None |
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| 228 | */ |
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| 229 | void HAL_PWREx_Vddio2Monitor_IRQHandler(void) |
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| 230 | { |
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| 231 | /* Check PWR exti flag */ |
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| 232 | if(__HAL_PWR_VDDIO2_EXTI_GET_FLAG() != RESET) |
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| 233 | { |
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| 234 | /* PWR Vddio2 monitor interrupt user callback */ |
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| 235 | HAL_PWREx_Vddio2MonitorCallback(); |
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| 236 | |||
| 237 | /* Clear PWR Exti pending bit */ |
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| 238 | __HAL_PWR_VDDIO2_EXTI_CLEAR_FLAG(); |
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| 239 | } |
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| 240 | } |
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| 241 | |||
| 242 | /** |
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| 243 | * @brief PWR Vddio2 Monitor interrupt callback |
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| 244 | * @retval None |
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| 245 | */ |
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| 246 | __weak void HAL_PWREx_Vddio2MonitorCallback(void) |
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| 247 | { |
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| 248 | /* NOTE : This function Should not be modified, when the callback is needed, |
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| 249 | the HAL_PWREx_Vddio2MonitorCallback could be implemented in the user file |
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| 250 | */ |
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| 251 | } |
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| 252 | |||
| 253 | #endif /* defined (STM32F042x6) || defined (STM32F048xx) || \ |
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| 254 | defined (STM32F071xB) || defined (STM32F072xB) || defined (STM32F078xx) || \ |
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| 255 | defined (STM32F091xC) || defined (STM32F098xx) */ |
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| 256 | |||
| 257 | /** |
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| 258 | * @} |
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| 259 | */ |
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| 260 | |||
| 261 | /** |
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| 262 | * @} |
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| 263 | */ |
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| 264 | |||
| 265 | #endif /* HAL_PWR_MODULE_ENABLED */ |
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| 266 | /** |
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| 267 | * @} |
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| 268 | */ |
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| 269 | |||
| 270 | /** |
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| 271 | * @} |
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| 272 | */ |
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| 273 | |||
| 274 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |