diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_pwr_ex.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_pwr_ex.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_pwr_ex.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_pwr_ex.c new file mode 100644 index 0000000000..958bb01067 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_pwr_ex.c @@ -0,0 +1,184 @@ +/** + ****************************************************************************** + * @file stm32l0xx_hal_pwr_ex.c + * @author MCD Application Team + * @version V1.2.0 + * @date 06-February-2015 + * @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) 2015 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 "stm32l0xx_hal.h" + +#ifdef HAL_PWR_MODULE_ENABLED +/** @addtogroup STM32L0xx_HAL_Driver + * @{ + */ + +/** @addtogroup PWREx + * @{ + */ + +/** @defgroup PWR_Extended_TimeOut_Value PWR Extended Flag Setting Time Out Value + * @{ + */ +#define PWR_FLAG_SETTING_DELAY_US 50 +/** + * @} + */ + + +/** @addtogroup PWREx_Exported_Functions + * @brief Low Power modes configuration functions + * +@verbatim + + =============================================================================== + ##### Peripheral extended features functions ##### + =============================================================================== +@endverbatim + * @{ + */ + +/** + * @brief Enables the Fast WakeUp from Ultra Low Power mode. + * @note This bit works in conjunction with ULP bit. + * Means, when ULP = 1 and FWU = 1 :VREFINT startup time is ignored when + * exiting from low power mode. + * @retval None + */ +void HAL_PWREx_EnableFastWakeUp(void) +{ + /* Enable the fast wake up */ + SET_BIT(PWR->CR, PWR_CR_FWU); +} + +/** + * @brief Disables the Fast WakeUp from Ultra Low Power mode. + * @retval None + */ +void HAL_PWREx_DisableFastWakeUp(void) +{ + /* Disable the fast wake up */ + CLEAR_BIT(PWR->CR, PWR_CR_FWU); +} + +/** + * @brief Enables the Ultra Low Power mode + * @retval None + */ +void HAL_PWREx_EnableUltraLowPower(void) +{ + /* Enable the Ultra Low Power mode */ + SET_BIT(PWR->CR, PWR_CR_ULP); +} + +/** + * @brief Disables the Ultra Low Power mode + * @retval None + */ +void HAL_PWREx_DisableUltraLowPower(void) +{ + /* Disable the Ultra Low Power mode */ + CLEAR_BIT(PWR->CR, PWR_CR_ULP); +} + +/** + * @brief Enable the Low Power Run mode. + * @note Low power run mode can only be entered when VCORE is in range 2. + * In addition, the dynamic voltage scaling must not be used when Low + * power run mode is selected. Only Stop and Sleep modes with regulator + * configured in Low power mode is allowed when Low power run mode is + * selected. + * @note The frequency of the system clock must be decreased to not exceed the + * frequency of RCC_MSIRANGE_1. + * @note In Low power run mode, all I/O pins keep the same state as in Run mode. + * @retval None + */ +void HAL_PWREx_EnableLowPowerRunMode(void) +{ + /* Enters the Low Power Run mode */ + SET_BIT(PWR->CR, PWR_CR_LPSDSR); + SET_BIT(PWR->CR, PWR_CR_LPRUN); +} + +/** + * @brief Disable the Low Power Run mode. + * @note Before HAL_PWREx_DisableLowPowerRunMode() completion, the function checks that + * REGLPF has been properly reset (otherwise, HAL_PWREx_DisableLowPowerRunMode + * returns HAL_TIMEOUT status). The system clock frequency can then be + * increased above 2 MHz. + * @retval HAL_StatusTypeDef + */ +HAL_StatusTypeDef HAL_PWREx_DisableLowPowerRunMode(void) +{ + uint32_t wait_loop_index = 0; + + /* Exit the Low Power Run mode */ + CLEAR_BIT(PWR->CR, PWR_CR_LPRUN); + CLEAR_BIT(PWR->CR, PWR_CR_LPSDSR); + + /* Wait until REGLPF is reset */ + wait_loop_index = (PWR_FLAG_SETTING_DELAY_US * (SystemCoreClock / 1000000)); + + while ((wait_loop_index != 0) && (HAL_IS_BIT_SET(PWR->CSR, PWR_CSR_REGLPF))) + { + wait_loop_index--; + } + + if (HAL_IS_BIT_SET(PWR->CSR, PWR_CSR_REGLPF)) + { + return HAL_TIMEOUT; + } + + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +#endif /* HAL_PWR_MODULE_ENABLED */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ + |