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| bfc108 | 1 | /** |
| Q | 2 | ****************************************************************************** |
| 3 | * @file stm32f0xx_hal_pwr_ex.c | |
| 4 | * @author MCD Application Team | |
| 5 | * @brief Extended PWR HAL module driver. | |
| 6 | * This file provides firmware functions to manage the following | |
| 7 | * functionalities of the Power Controller (PWR) peripheral: | |
| 8 | * + Extended Initialization and de-initialization functions | |
| 9 | * + Extended Peripheral Control functions | |
| 10 | * | |
| 11 | ****************************************************************************** | |
| 12 | * @attention | |
| 13 | * | |
| 14 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> | |
| 15 | * | |
| 16 | * Redistribution and use in source and binary forms, with or without modification, | |
| 17 | * are permitted provided that the following conditions are met: | |
| 18 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 19 | * this list of conditions and the following disclaimer. | |
| 20 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 21 | * this list of conditions and the following disclaimer in the documentation | |
| 22 | * and/or other materials provided with the distribution. | |
| 23 | * 3. Neither the name of STMicroelectronics nor the names of its contributors | |
| 24 | * may be used to endorse or promote products derived from this software | |
| 25 | * without specific prior written permission. | |
| 26 | * | |
| 27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 28 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 30 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
| 31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 33 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 34 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 35 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 36 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 37 | * | |
| 38 | ****************************************************************************** | |
| 39 | */ | |
| 40 | ||
| 41 | /* Includes ------------------------------------------------------------------*/ | |
| 42 | #include "stm32f0xx_hal.h" | |
| 43 | ||
| 44 | /** @addtogroup STM32F0xx_HAL_Driver | |
| 45 | * @{ | |
| 46 | */ | |
| 47 | ||
| 48 | /** @defgroup PWREx PWREx | |
| 49 | * @brief PWREx HAL module driver | |
| 50 | * @{ | |
| 51 | */ | |
| 52 | ||
| 53 | #ifdef HAL_PWR_MODULE_ENABLED | |
| 54 | ||
| 55 | /* Private typedef -----------------------------------------------------------*/ | |
| 56 | /* Private define ------------------------------------------------------------*/ | |
| 57 | /** @defgroup PWREx_Private_Constants PWREx Private Constants | |
| 58 | * @{ | |
| 59 | */ | |
| 60 | #define PVD_MODE_IT (0x00010000U) | |
| 61 | #define PVD_MODE_EVT (0x00020000U) | |
| 62 | #define PVD_RISING_EDGE (0x00000001U) | |
| 63 | #define PVD_FALLING_EDGE (0x00000002U) | |
| 64 | /** | |
| 65 | * @} | |
| 66 | */ | |
| 67 | ||
| 68 | /* Private macro -------------------------------------------------------------*/ | |
| 69 | /* Private variables ---------------------------------------------------------*/ | |
| 70 | /* Private function prototypes -----------------------------------------------*/ | |
| 71 | /* Exported functions ---------------------------------------------------------*/ | |
| 72 | ||
| 73 | /** @defgroup PWREx_Exported_Functions PWREx Exported Functions | |
| 74 | * @{ | |
| 75 | */ | |
| 76 | ||
| 77 | /** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended Control Functions | |
| 78 | * @brief Extended Peripheral Control functions | |
| 79 | * | |
| 80 | @verbatim | |
| 81 | ||
| 82 | =============================================================================== | |
| 83 | ##### Peripheral extended control functions ##### | |
| 84 | =============================================================================== | |
| 85 | ||
| 86 | *** PVD configuration *** | |
| 87 | ========================= | |
| 88 | [..] | |
| 89 | (+) The PVD is used to monitor the VDD power supply by comparing it to a | |
| 90 | threshold selected by the PVD Level (PLS[2:0] bits in the PWR_CR). | |
| 91 | (+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower | |
| 92 | than the PVD threshold. This event is internally connected to the EXTI | |
| 93 | line16 and can generate an interrupt if enabled. This is done through | |
| 94 | HAL_PWR_ConfigPVD(), HAL_PWR_EnablePVD() functions. | |
| 95 | (+) The PVD is stopped in Standby mode. | |
| 96 | -@- PVD is not available on STM32F030x4/x6/x8 | |
| 97 | ||
| 98 | *** VDDIO2 Monitor Configuration *** | |
| 99 | ==================================== | |
| 100 | [..] | |
| 101 | (+) VDDIO2 monitor is used to monitor the VDDIO2 power supply by comparing it | |
| 102 | to VREFInt Voltage | |
| 103 | (+) This monitor is internally connected to the EXTI line31 | |
| 104 | and can generate an interrupt if enabled. This is done through | |
| 105 | HAL_PWREx_EnableVddio2Monitor() function. | |
| 106 | -@- VDDIO2 is available on STM32F07x/09x/04x | |
| 107 | ||
| 108 | @endverbatim | |
| 109 | * @{ | |
| 110 | */ | |
| 111 | ||
| 112 | #if defined (STM32F031x6) || defined (STM32F051x8) || \ | |
| 113 | defined (STM32F071xB) || defined (STM32F091xC) || \ | |
| 114 | defined (STM32F042x6) || defined (STM32F072xB) | |
| 115 | /** | |
| 116 | * @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD). | |
| 117 | * @param sConfigPVD pointer to an PWR_PVDTypeDef structure that contains the configuration | |
| 118 | * information for the PVD. | |
| 119 | * @note Refer to the electrical characteristics of your device datasheet for | |
| 120 | * more details about the voltage threshold corresponding to each | |
| 121 | * detection level. | |
| 122 | * @retval None | |
| 123 | */ | |
| 124 | void HAL_PWR_ConfigPVD(PWR_PVDTypeDef *sConfigPVD) | |
| 125 | { | |
| 126 | /* Check the parameters */ | |
| 127 | assert_param(IS_PWR_PVD_LEVEL(sConfigPVD->PVDLevel)); | |
| 128 | assert_param(IS_PWR_PVD_MODE(sConfigPVD->Mode)); | |
| 129 | ||
| 130 | /* Set PLS[7:5] bits according to PVDLevel value */ | |
| 131 | MODIFY_REG(PWR->CR, PWR_CR_PLS, sConfigPVD->PVDLevel); | |
| 132 | ||
| 133 | /* Clear any previous config. Keep it clear if no event or IT mode is selected */ | |
| 134 | __HAL_PWR_PVD_EXTI_DISABLE_EVENT(); | |
| 135 | __HAL_PWR_PVD_EXTI_DISABLE_IT(); | |
| 136 | __HAL_PWR_PVD_EXTI_DISABLE_RISING_EDGE();__HAL_PWR_PVD_EXTI_DISABLE_FALLING_EDGE(); | |
| 137 | ||
| 138 | /* Configure interrupt mode */ | |
| 139 | if((sConfigPVD->Mode & PVD_MODE_IT) == PVD_MODE_IT) | |
| 140 | { | |
| 141 | __HAL_PWR_PVD_EXTI_ENABLE_IT(); | |
| 142 | } | |
| 143 | ||
| 144 | /* Configure event mode */ | |
| 145 | if((sConfigPVD->Mode & PVD_MODE_EVT) == PVD_MODE_EVT) | |
| 146 | { | |
| 147 | __HAL_PWR_PVD_EXTI_ENABLE_EVENT(); | |
| 148 | } | |
| 149 | ||
| 150 | /* Configure the edge */ | |
| 151 | if((sConfigPVD->Mode & PVD_RISING_EDGE) == PVD_RISING_EDGE) | |
| 152 | { | |
| 153 | __HAL_PWR_PVD_EXTI_ENABLE_RISING_EDGE(); | |
| 154 | } | |
| 155 | ||
| 156 | if((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE) | |
| 157 | { | |
| 158 | __HAL_PWR_PVD_EXTI_ENABLE_FALLING_EDGE(); | |
| 159 | } | |
| 160 | } | |
| 161 | ||
| 162 | /** | |
| 163 | * @brief Enables the Power Voltage Detector(PVD). | |
| 164 | * @retval None | |
| 165 | */ | |
| 166 | void HAL_PWR_EnablePVD(void) | |
| 167 | { | |
| 168 | PWR->CR |= (uint32_t)PWR_CR_PVDE; | |
| 169 | } | |
| 170 | ||
| 171 | /** | |
| 172 | * @brief Disables the Power Voltage Detector(PVD). | |
| 173 | * @retval None | |
| 174 | */ | |
| 175 | void HAL_PWR_DisablePVD(void) | |
| 176 | { | |
| 177 | PWR->CR &= ~((uint32_t)PWR_CR_PVDE); | |
| 178 | } | |
| 179 | ||
| 180 | /** | |
| 181 | * @brief This function handles the PWR PVD interrupt request. | |
| 182 | * @note This API should be called under the PVD_IRQHandler() or PVD_VDDIO2_IRQHandler(). | |
| 183 | * @retval None | |
| 184 | */ | |
| 185 | void HAL_PWR_PVD_IRQHandler(void) | |
| 186 | { | |
| 187 | /* Check PWR exti flag */ | |
| 188 | if(__HAL_PWR_PVD_EXTI_GET_FLAG() != RESET) | |
| 189 | { | |
| 190 | /* PWR PVD interrupt user callback */ | |
| 191 | HAL_PWR_PVDCallback(); | |
| 192 | ||
| 193 | /* Clear PWR Exti pending bit */ | |
| 194 | __HAL_PWR_PVD_EXTI_CLEAR_FLAG(); | |
| 195 | } | |
| 196 | } | |
| 197 | ||
| 198 | /** | |
| 199 | * @brief PWR PVD interrupt callback | |
| 200 | * @retval None | |
| 201 | */ | |
| 202 | __weak void HAL_PWR_PVDCallback(void) | |
| 203 | { | |
| 204 | /* NOTE : This function Should not be modified, when the callback is needed, | |
| 205 | the HAL_PWR_PVDCallback could be implemented in the user file | |
| 206 | */ | |
| 207 | } | |
| 208 | ||
| 209 | #endif /* defined (STM32F031x6) || defined (STM32F051x8) || */ | |
| 210 | /* defined (STM32F071xB) || defined (STM32F091xC) || */ | |
| 211 | /* defined (STM32F042x6) || defined (STM32F072xB) */ | |
| 212 | ||
| 213 | #if defined (STM32F042x6) || defined (STM32F048xx) || \ | |
| 214 | defined (STM32F071xB) || defined (STM32F072xB) || defined (STM32F078xx) || \ | |
| 215 | defined (STM32F091xC) || defined (STM32F098xx) | |
| 216 | /** | |
| 217 | * @brief Enable VDDIO2 monitor: enable Exti 31 and falling edge detection. | |
| 218 | * @note If Exti 31 is enable correlty and VDDIO2 voltage goes below Vrefint, | |
| 219 | an interrupt is generated Irq line 1. | |
| 220 | NVIS has to be enable by user. | |
| 221 | * @retval None | |
| 222 | */ | |
| 223 | void HAL_PWREx_EnableVddio2Monitor(void) | |
| 224 | { | |
| 225 | __HAL_PWR_VDDIO2_EXTI_ENABLE_IT(); | |
| 226 | __HAL_PWR_VDDIO2_EXTI_ENABLE_FALLING_EDGE(); | |
| 227 | } | |
| 228 | ||
| 229 | /** | |
| 230 | * @brief Disable the Vddio2 Monitor. | |
| 231 | * @retval None | |
| 232 | */ | |
| 233 | void HAL_PWREx_DisableVddio2Monitor(void) | |
| 234 | { | |
| 235 | __HAL_PWR_VDDIO2_EXTI_DISABLE_IT(); | |
| 236 | __HAL_PWR_VDDIO2_EXTI_DISABLE_FALLING_EDGE(); | |
| 237 | ||
| 238 | } | |
| 239 | ||
| 240 | /** | |
| 241 | * @brief This function handles the PWR Vddio2 monitor interrupt request. | |
| 242 | * @note This API should be called under the VDDIO2_IRQHandler() PVD_VDDIO2_IRQHandler(). | |
| 243 | * @retval None | |
| 244 | */ | |
| 245 | void HAL_PWREx_Vddio2Monitor_IRQHandler(void) | |
| 246 | { | |
| 247 | /* Check PWR exti flag */ | |
| 248 | if(__HAL_PWR_VDDIO2_EXTI_GET_FLAG() != RESET) | |
| 249 | { | |
| 250 | /* PWR Vddio2 monitor interrupt user callback */ | |
| 251 | HAL_PWREx_Vddio2MonitorCallback(); | |
| 252 | ||
| 253 | /* Clear PWR Exti pending bit */ | |
| 254 | __HAL_PWR_VDDIO2_EXTI_CLEAR_FLAG(); | |
| 255 | } | |
| 256 | } | |
| 257 | ||
| 258 | /** | |
| 259 | * @brief PWR Vddio2 Monitor interrupt callback | |
| 260 | * @retval None | |
| 261 | */ | |
| 262 | __weak void HAL_PWREx_Vddio2MonitorCallback(void) | |
| 263 | { | |
| 264 | /* NOTE : This function Should not be modified, when the callback is needed, | |
| 265 | the HAL_PWREx_Vddio2MonitorCallback could be implemented in the user file | |
| 266 | */ | |
| 267 | } | |
| 268 | ||
| 269 | #endif /* defined (STM32F042x6) || defined (STM32F048xx) || \ | |
| 270 | defined (STM32F071xB) || defined (STM32F072xB) || defined (STM32F078xx) || \ | |
| 271 | defined (STM32F091xC) || defined (STM32F098xx) */ | |
| 272 | ||
| 273 | /** | |
| 274 | * @} | |
| 275 | */ | |
| 276 | ||
| 277 | /** | |
| 278 | * @} | |
| 279 | */ | |
| 280 | ||
| 281 | #endif /* HAL_PWR_MODULE_ENABLED */ | |
| 282 | /** | |
| 283 | * @} | |
| 284 | */ | |
| 285 | ||
| 286 | /** | |
| 287 | * @} | |
| 288 | */ | |
| 289 | ||
| 290 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ | |
