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| 2 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file stm32l1xx_hal_pwr_ex.c |
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| 4 | * @author MCD Application Team |
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| 5 | * @version V1.2.0 |
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| 6 | * @date 01-July-2016 |
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| 7 | * @brief Extended PWR HAL module driver. |
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| 8 | * This file provides firmware functions to manage the following |
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| 9 | * functionalities of the Power Controller (PWR) peripheral: |
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| 10 | * + Extended Initialization and de-initialization functions |
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| 11 | * + Extended Peripheral Control functions |
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| 12 | * |
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| 13 | ****************************************************************************** |
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| 14 | * @attention |
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| 15 | * |
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| 16 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
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| 17 | * |
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| 18 | * Redistribution and use in source and binary forms, with or without modification, |
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| 19 | * are permitted provided that the following conditions are met: |
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| 20 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 21 | * this list of conditions and the following disclaimer. |
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| 22 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 23 | * this list of conditions and the following disclaimer in the documentation |
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| 24 | * and/or other materials provided with the distribution. |
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| 25 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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| 26 | * may be used to endorse or promote products derived from this software |
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| 27 | * without specific prior written permission. |
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| 28 | * |
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| 29 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 30 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 31 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 32 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| 33 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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| 35 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| 36 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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| 37 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 38 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 39 | * |
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| 40 | ****************************************************************************** |
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| 41 | */ |
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| 42 | |||
| 43 | /* Includes ------------------------------------------------------------------*/ |
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| 44 | #include "stm32l1xx_hal.h" |
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| 45 | |||
| 46 | /** @addtogroup STM32L1xx_HAL_Driver |
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| 47 | * @{ |
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| 48 | */ |
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| 49 | |||
| 50 | /** @defgroup PWREx PWREx |
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| 51 | * @brief PWR HAL module driver |
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| 52 | * @{ |
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| 53 | */ |
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| 54 | |||
| 55 | #ifdef HAL_PWR_MODULE_ENABLED |
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| 56 | |||
| 57 | /* Private typedef -----------------------------------------------------------*/ |
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| 58 | /* Private define ------------------------------------------------------------*/ |
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| 59 | /* Private macro -------------------------------------------------------------*/ |
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| 60 | /* Private variables ---------------------------------------------------------*/ |
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| 61 | /* Private function prototypes -----------------------------------------------*/ |
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| 62 | /* Private functions ---------------------------------------------------------*/ |
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| 63 | |||
| 64 | /** @defgroup PWREx_Exported_Functions PWREx Exported Functions |
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| 65 | * @{ |
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| 66 | */ |
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| 67 | |||
| 68 | /** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended Features Functions |
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| 69 | * @brief Low Power modes configuration functions |
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| 70 | * |
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| 71 | @verbatim |
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| 72 | |||
| 73 | =============================================================================== |
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| 74 | ##### Peripheral extended features functions ##### |
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| 75 | =============================================================================== |
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| 76 | @endverbatim |
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| 77 | * @{ |
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| 78 | */ |
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| 79 | |||
| 80 | /** |
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| 81 | * @brief Return Voltage Scaling Range. |
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| 82 | * @retval VOS bit field (PWR_REGULATOR_VOLTAGE_SCALE1, PWR_REGULATOR_VOLTAGE_SCALE2 or PWR_REGULATOR_VOLTAGE_SCALE3) |
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| 83 | */ |
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| 84 | uint32_t HAL_PWREx_GetVoltageRange(void) |
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| 85 | { |
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| 86 | return (PWR->CR & PWR_CR_VOS); |
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| 87 | } |
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| 88 | |||
| 89 | |||
| 90 | /** |
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| 91 | * @brief Enables the Fast WakeUp from Ultra Low Power mode. |
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| 92 | * @note This bit works in conjunction with ULP bit. |
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| 93 | * Means, when ULP = 1 and FWU = 1 :VREFINT startup time is ignored when |
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| 94 | * exiting from low power mode. |
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| 95 | * @retval None |
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| 96 | */ |
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| 97 | void HAL_PWREx_EnableFastWakeUp(void) |
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| 98 | { |
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| 99 | /* Enable the fast wake up */ |
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| 100 | *(__IO uint32_t *) CR_FWU_BB = (uint32_t)ENABLE; |
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| 101 | } |
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| 102 | |||
| 103 | /** |
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| 104 | * @brief Disables the Fast WakeUp from Ultra Low Power mode. |
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| 105 | * @retval None |
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| 106 | */ |
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| 107 | void HAL_PWREx_DisableFastWakeUp(void) |
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| 108 | { |
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| 109 | /* Disable the fast wake up */ |
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| 110 | *(__IO uint32_t *) CR_FWU_BB = (uint32_t)DISABLE; |
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| 111 | } |
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| 112 | |||
| 113 | /** |
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| 114 | * @brief Enables the Ultra Low Power mode |
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| 115 | * @retval None |
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| 116 | */ |
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| 117 | void HAL_PWREx_EnableUltraLowPower(void) |
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| 118 | { |
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| 119 | /* Enable the Ultra Low Power mode */ |
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| 120 | *(__IO uint32_t *) CR_ULP_BB = (uint32_t)ENABLE; |
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| 121 | } |
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| 122 | |||
| 123 | /** |
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| 124 | * @brief Disables the Ultra Low Power mode |
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| 125 | * @retval None |
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| 126 | */ |
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| 127 | void HAL_PWREx_DisableUltraLowPower(void) |
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| 128 | { |
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| 129 | /* Disable the Ultra Low Power mode */ |
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| 130 | *(__IO uint32_t *) CR_ULP_BB = (uint32_t)DISABLE; |
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| 131 | } |
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| 132 | |||
| 133 | /** |
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| 134 | * @brief Enters the Low Power Run mode. |
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| 135 | * @note Low power run mode can only be entered when VCORE is in range 2. |
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| 136 | * In addition, the dynamic voltage scaling must not be used when Low |
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| 137 | * power run mode is selected. Only Stop and Sleep modes with regulator |
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| 138 | * configured in Low power mode is allowed when Low power run mode is |
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| 139 | * selected. |
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| 140 | * @note In Low power run mode, all I/O pins keep the same state as in Run mode. |
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| 141 | * @retval None |
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| 142 | */ |
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| 143 | void HAL_PWREx_EnableLowPowerRunMode(void) |
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| 144 | { |
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| 145 | /* Enters the Low Power Run mode */ |
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| 146 | *(__IO uint32_t *) CR_LPSDSR_BB = (uint32_t)ENABLE; |
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| 147 | *(__IO uint32_t *) CR_LPRUN_BB = (uint32_t)ENABLE; |
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| 148 | } |
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| 149 | |||
| 150 | /** |
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| 151 | * @brief Exits the Low Power Run mode. |
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| 152 | * @retval None |
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| 153 | */ |
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| 154 | HAL_StatusTypeDef HAL_PWREx_DisableLowPowerRunMode(void) |
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| 155 | { |
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| 156 | /* Exits the Low Power Run mode */ |
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| 157 | *(__IO uint32_t *) CR_LPRUN_BB = (uint32_t)DISABLE; |
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| 158 | *(__IO uint32_t *) CR_LPSDSR_BB = (uint32_t)DISABLE; |
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| 159 | return HAL_OK; |
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| 160 | } |
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| 161 | |||
| 162 | /** |
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| 163 | * @} |
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| 164 | */ |
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| 165 | |||
| 166 | /** |
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| 167 | * @} |
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| 168 | */ |
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| 169 | |||
| 170 | #endif /* HAL_PWR_MODULE_ENABLED */ |
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| 171 | /** |
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| 172 | * @} |
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| 173 | */ |
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| 174 | |||
| 175 | /** |
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| 176 | * @} |
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| 177 | */ |
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| 178 | |||
| 179 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |