/** ****************************************************************************** * @file stm32l0xx_ll_pwr.h * @author MCD Application Team * @brief Header file of PWR LL module. ****************************************************************************** * @attention * *

© COPYRIGHT(c) 2016 STMicroelectronics

* * 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. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32L0xx_LL_PWR_H #define __STM32L0xx_LL_PWR_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32l0xx.h" /** @addtogroup STM32L0xx_LL_Driver * @{ */ #if defined(PWR) /** @defgroup PWR_LL PWR * @{ */ /* Private types -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private constants ---------------------------------------------------------*/ /* Private macros ------------------------------------------------------------*/ /* Exported types ------------------------------------------------------------*/ /* Exported constants --------------------------------------------------------*/ /** @defgroup PWR_LL_Exported_Constants PWR Exported Constants * @{ */ /** @defgroup PWR_LL_EC_CLEAR_FLAG Clear Flags Defines * @brief Flags defines which can be used with LL_PWR_WriteReg function * @{ */ #define LL_PWR_CR_CSBF PWR_CR_CSBF /*!< Clear standby flag */ #define LL_PWR_CR_CWUF PWR_CR_CWUF /*!< Clear wakeup flag */ /** * @} */ /** @defgroup PWR_LL_EC_GET_FLAG Get Flags Defines * @brief Flags defines which can be used with LL_PWR_ReadReg function * @{ */ #define LL_PWR_CSR_WUF PWR_CSR_WUF /*!< Wakeup flag */ #define LL_PWR_CSR_SBF PWR_CSR_SBF /*!< Standby flag */ #if defined(PWR_PVD_SUPPORT) #define LL_PWR_CSR_PVDO PWR_CSR_PVDO /*!< Power voltage detector output flag */ #endif /* PWR_PVD_SUPPORT */ #if defined(PWR_CSR_VREFINTRDYF) #define LL_PWR_CSR_VREFINTRDYF PWR_CSR_VREFINTRDYF /*!< VREFINT ready flag */ #endif /* PWR_CSR_VREFINTRDYF */ #define LL_PWR_CSR_VOS PWR_CSR_VOSF /*!< Voltage scaling select flag */ #define LL_PWR_CSR_REGLPF PWR_CSR_REGLPF /*!< Regulator low power flag */ #define LL_PWR_CSR_EWUP1 PWR_CSR_EWUP1 /*!< Enable WKUP pin 1 */ #define LL_PWR_CSR_EWUP2 PWR_CSR_EWUP2 /*!< Enable WKUP pin 2 */ #if defined(PWR_CSR_EWUP3) #define LL_PWR_CSR_EWUP3 PWR_CSR_EWUP3 /*!< Enable WKUP pin 3 */ #endif /* PWR_CSR_EWUP3 */ /** * @} */ /** @defgroup PWR_LL_EC_REGU_VOLTAGE Regulator Voltage * @{ */ #define LL_PWR_REGU_VOLTAGE_SCALE1 (PWR_CR_VOS_0) /*!< 1.8V (range 1) */ #define LL_PWR_REGU_VOLTAGE_SCALE2 (PWR_CR_VOS_1) /*!< 1.5V (range 2) */ #define LL_PWR_REGU_VOLTAGE_SCALE3 (PWR_CR_VOS_0 | PWR_CR_VOS_1) /*!< 1.2V (range 3) */ /** * @} */ /** @defgroup PWR_LL_EC_MODE_PWR Mode Power * @{ */ #define LL_PWR_MODE_STOP 0x00000000U /*!< Enter Stop mode when the CPU enters deepsleep */ #define LL_PWR_MODE_STANDBY (PWR_CR_PDDS) /*!< Enter Standby mode when the CPU enters deepsleep */ /** * @} */ /** @defgroup PWR_LL_EC_REGU_MODE_LP_MODES Regulator Mode In Low Power Modes * @{ */ #define LL_PWR_REGU_LPMODES_MAIN 0x00000000U /*!< Voltage regulator in main mode during deepsleep/sleep/low-power run mode */ #define LL_PWR_REGU_LPMODES_LOW_POWER (PWR_CR_LPSDSR) /*!< Voltage regulator in low-power mode during deepsleep/sleep/low-power run mode */ /** * @} */ #if defined(PWR_CR_LPDS) /** @defgroup PWR_LL_EC_REGU_MODE_DS_MODE Regulator Mode In Deep Sleep Mode * @{ */ #define LL_PWR_REGU_DSMODE_MAIN 0x00000000U /*!< Voltage regulator in main mode during deepsleep mode when PWR_CR_LPSDSR = 0 */ #define LL_PWR_REGU_DSMODE_LOW_POWER (PWR_CR_LPDS) /*!< Voltage regulator in low-power mode during deepsleep mode when PWR_CR_LPSDSR = 0 */ /** * @} */ #endif /* PWR_CR_LPDS */ #if defined(PWR_PVD_SUPPORT) /** @defgroup PWR_LL_EC_PVDLEVEL Power Voltage Detector Level * @{ */ #define LL_PWR_PVDLEVEL_0 (PWR_CR_PLS_LEV0) /*!< Voltage threshold detected by PVD 1.9 V */ #define LL_PWR_PVDLEVEL_1 (PWR_CR_PLS_LEV1) /*!< Voltage threshold detected by PVD 2.1 V */ #define LL_PWR_PVDLEVEL_2 (PWR_CR_PLS_LEV2) /*!< Voltage threshold detected by PVD 2.3 V */ #define LL_PWR_PVDLEVEL_3 (PWR_CR_PLS_LEV3) /*!< Voltage threshold detected by PVD 2.5 V */ #define LL_PWR_PVDLEVEL_4 (PWR_CR_PLS_LEV4) /*!< Voltage threshold detected by PVD 2.7 V */ #define LL_PWR_PVDLEVEL_5 (PWR_CR_PLS_LEV5) /*!< Voltage threshold detected by PVD 2.9 V */ #define LL_PWR_PVDLEVEL_6 (PWR_CR_PLS_LEV6) /*!< Voltage threshold detected by PVD 3.1 V */ #define LL_PWR_PVDLEVEL_7 (PWR_CR_PLS_LEV7) /*!< External input analog voltage (Compare internally to VREFINT) */ /** * @} */ #endif /* PWR_PVD_SUPPORT */ /** @defgroup PWR_LL_EC_WAKEUP_PIN Wakeup Pins * @{ */ #define LL_PWR_WAKEUP_PIN1 (PWR_CSR_EWUP1) /*!< WKUP pin 1 : PA0 */ #define LL_PWR_WAKEUP_PIN2 (PWR_CSR_EWUP2) /*!< WKUP pin 2 : PC13 */ #if defined(PWR_CSR_EWUP3) #define LL_PWR_WAKEUP_PIN3 (PWR_CSR_EWUP3) /*!< WKUP pin 3 : PE6 or PA2 according to device */ #endif /* PWR_CSR_EWUP3 */ /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /** @defgroup PWR_LL_Exported_Macros PWR Exported Macros * @{ */ /** @defgroup PWR_LL_EM_WRITE_READ Common write and read registers Macros * @{ */ /** * @brief Write a value in PWR register * @param __REG__ Register to be written * @param __VALUE__ Value to be written in the register * @retval None */ #define LL_PWR_WriteReg(__REG__, __VALUE__) WRITE_REG(PWR->__REG__, (__VALUE__)) /** * @brief Read a value in PWR register * @param __REG__ Register to be read * @retval Register value */ #define LL_PWR_ReadReg(__REG__) READ_REG(PWR->__REG__) /** * @} */ /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @defgroup PWR_LL_Exported_Functions PWR Exported Functions * @{ */ /** @defgroup PWR_LL_EF_Configuration Configuration * @{ */ /** * @brief Switch the regulator from main mode to low-power mode * @rmtoll CR LPRUN LL_PWR_EnableLowPowerRunMode * @note Remind to set the regulator to low power before enabling * LowPower run mode (bit @ref LL_PWR_REGU_LPMODES_LOW_POWER). * @retval None */ __STATIC_INLINE void LL_PWR_EnableLowPowerRunMode(void) { SET_BIT(PWR->CR, PWR_CR_LPRUN); } /** * @brief Switch the regulator from low-power mode to main mode * @rmtoll CR LPRUN LL_PWR_DisableLowPowerRunMode * @retval None */ __STATIC_INLINE void LL_PWR_DisableLowPowerRunMode(void) { CLEAR_BIT(PWR->CR, PWR_CR_LPRUN); } /** * @brief Check if the regulator is in low-power mode * @rmtoll CR LPRUN LL_PWR_IsEnabledLowPowerRunMode * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledLowPowerRunMode(void) { return (READ_BIT(PWR->CR, PWR_CR_LPRUN) == (PWR_CR_LPRUN)); } /** * @brief Set voltage regulator to low-power and switch from * run main mode to run low-power mode. * @rmtoll CR LPSDSR LL_PWR_EnterLowPowerRunMode\n * CR LPRUN LL_PWR_EnterLowPowerRunMode * @note This "high level" function is introduced to provide functional * compatibility with other families. Notice that the two registers * have to be written sequentially, so this function is not atomic. * To assure atomicity you can call separately the following functions: * - @ref LL_PWR_SetRegulModeLP(@ref LL_PWR_REGU_LPMODES_LOW_POWER); * - @ref LL_PWR_EnableLowPowerRunMode(); * @retval None */ __STATIC_INLINE void LL_PWR_EnterLowPowerRunMode(void) { SET_BIT(PWR->CR, PWR_CR_LPSDSR); /* => LL_PWR_SetRegulModeLP(LL_PWR_REGU_LPMODES_LOW_POWER) */ SET_BIT(PWR->CR, PWR_CR_LPRUN); /* => LL_PWR_EnableLowPowerRunMode() */ } /** * @brief Set voltage regulator to main and switch from * run main mode to low-power mode. * @rmtoll CR LPSDSR LL_PWR_ExitLowPowerRunMode\n * CR LPRUN LL_PWR_ExitLowPowerRunMode * @note This "high level" function is introduced to provide functional * compatibility with other families. Notice that the two registers * have to be written sequentially, so this function is not atomic. * To assure atomicity you can call separately the following functions: * - @ref LL_PWR_DisableLowPowerRunMode(); * - @ref LL_PWR_SetRegulModeLP(@ref LL_PWR_REGU_LPMODES_MAIN); * @retval None */ __STATIC_INLINE void LL_PWR_ExitLowPowerRunMode(void) { CLEAR_BIT(PWR->CR, PWR_CR_LPRUN); /* => LL_PWR_DisableLowPowerRunMode() */ CLEAR_BIT(PWR->CR, PWR_CR_LPSDSR); /* => LL_PWR_SetRegulModeLP(LL_PWR_REGU_LPMODES_MAIN) */ } /** * @brief Set the main internal regulator output voltage * @rmtoll CR VOS LL_PWR_SetRegulVoltageScaling * @param VoltageScaling This parameter can be one of the following values: * @arg @ref LL_PWR_REGU_VOLTAGE_SCALE1 * @arg @ref LL_PWR_REGU_VOLTAGE_SCALE2 * @arg @ref LL_PWR_REGU_VOLTAGE_SCALE3 * @retval None */ __STATIC_INLINE void LL_PWR_SetRegulVoltageScaling(uint32_t VoltageScaling) { MODIFY_REG(PWR->CR, PWR_CR_VOS, VoltageScaling); } /** * @brief Get the main internal regulator output voltage * @rmtoll CR VOS LL_PWR_GetRegulVoltageScaling * @retval Returned value can be one of the following values: * @arg @ref LL_PWR_REGU_VOLTAGE_SCALE1 * @arg @ref LL_PWR_REGU_VOLTAGE_SCALE2 * @arg @ref LL_PWR_REGU_VOLTAGE_SCALE3 */ __STATIC_INLINE uint32_t LL_PWR_GetRegulVoltageScaling(void) { return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_VOS)); } /** * @brief Enable access to the backup domain * @rmtoll CR DBP LL_PWR_EnableBkUpAccess * @retval None */ __STATIC_INLINE void LL_PWR_EnableBkUpAccess(void) { SET_BIT(PWR->CR, PWR_CR_DBP); } /** * @brief Disable access to the backup domain * @rmtoll CR DBP LL_PWR_DisableBkUpAccess * @retval None */ __STATIC_INLINE void LL_PWR_DisableBkUpAccess(void) { CLEAR_BIT(PWR->CR, PWR_CR_DBP); } /** * @brief Check if the backup domain is enabled * @rmtoll CR DBP LL_PWR_IsEnabledBkUpAccess * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledBkUpAccess(void) { return (READ_BIT(PWR->CR, PWR_CR_DBP) == (PWR_CR_DBP)); } /** * @brief Set voltage regulator mode during low power modes * @rmtoll CR LPSDSR LL_PWR_SetRegulModeLP * @param RegulMode This parameter can be one of the following values: * @arg @ref LL_PWR_REGU_LPMODES_MAIN * @arg @ref LL_PWR_REGU_LPMODES_LOW_POWER * @retval None */ __STATIC_INLINE void LL_PWR_SetRegulModeLP(uint32_t RegulMode) { MODIFY_REG(PWR->CR, PWR_CR_LPSDSR, RegulMode); } /** * @brief Get voltage regulator mode during low power modes * @rmtoll CR LPSDSR LL_PWR_GetRegulModeLP * @retval Returned value can be one of the following values: * @arg @ref LL_PWR_REGU_LPMODES_MAIN * @arg @ref LL_PWR_REGU_LPMODES_LOW_POWER */ __STATIC_INLINE uint32_t LL_PWR_GetRegulModeLP(void) { return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_LPSDSR)); } #if defined(PWR_CR_LPDS) /** * @brief Set voltage regulator mode during deep sleep mode * @rmtoll CR LPDS LL_PWR_SetRegulModeDS * @param RegulMode This parameter can be one of the following values: * @arg @ref LL_PWR_REGU_DSMODE_MAIN * @arg @ref LL_PWR_REGU_DSMODE_LOW_POWER * @retval None */ __STATIC_INLINE void LL_PWR_SetRegulModeDS(uint32_t RegulMode) { MODIFY_REG(PWR->CR, PWR_CR_LPDS, RegulMode); } /** * @brief Get voltage regulator mode during deep sleep mode * @rmtoll CR LPDS LL_PWR_GetRegulModeDS * @retval Returned value can be one of the following values: * @arg @ref LL_PWR_REGU_DSMODE_MAIN * @arg @ref LL_PWR_REGU_DSMODE_LOW_POWER */ __STATIC_INLINE uint32_t LL_PWR_GetRegulModeDS(void) { return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_LPDS)); } #endif /* PWR_CR_LPDS */ /** * @brief Set power down mode when CPU enters deepsleep * @rmtoll CR PDDS LL_PWR_SetPowerMode * @param PDMode This parameter can be one of the following values: * @arg @ref LL_PWR_MODE_STOP * @arg @ref LL_PWR_MODE_STANDBY * @note Set the regulator to low power (bit @ref LL_PWR_REGU_LPMODES_LOW_POWER) * before setting MODE_STOP. If the regulator remains in "main mode", * it consumes more power without providing any additional feature. * In MODE_STANDBY the regulator is automatically off. * @retval None */ __STATIC_INLINE void LL_PWR_SetPowerMode(uint32_t PDMode) { MODIFY_REG(PWR->CR, PWR_CR_PDDS, PDMode); } /** * @brief Get power down mode when CPU enters deepsleep * @rmtoll CR PDDS LL_PWR_GetPowerMode * @retval Returned value can be one of the following values: * @arg @ref LL_PWR_MODE_STOP * @arg @ref LL_PWR_MODE_STANDBY */ __STATIC_INLINE uint32_t LL_PWR_GetPowerMode(void) { return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_PDDS)); } #if defined(PWR_PVD_SUPPORT) /** * @brief Configure the voltage threshold detected by the Power Voltage Detector * @rmtoll CR PLS LL_PWR_SetPVDLevel * @param PVDLevel This parameter can be one of the following values: * @arg @ref LL_PWR_PVDLEVEL_0 * @arg @ref LL_PWR_PVDLEVEL_1 * @arg @ref LL_PWR_PVDLEVEL_2 * @arg @ref LL_PWR_PVDLEVEL_3 * @arg @ref LL_PWR_PVDLEVEL_4 * @arg @ref LL_PWR_PVDLEVEL_5 * @arg @ref LL_PWR_PVDLEVEL_6 * @arg @ref LL_PWR_PVDLEVEL_7 * @retval None */ __STATIC_INLINE void LL_PWR_SetPVDLevel(uint32_t PVDLevel) { MODIFY_REG(PWR->CR, PWR_CR_PLS, PVDLevel); } /** * @brief Get the voltage threshold detection * @rmtoll CR PLS LL_PWR_GetPVDLevel * @retval Returned value can be one of the following values: * @arg @ref LL_PWR_PVDLEVEL_0 * @arg @ref LL_PWR_PVDLEVEL_1 * @arg @ref LL_PWR_PVDLEVEL_2 * @arg @ref LL_PWR_PVDLEVEL_3 * @arg @ref LL_PWR_PVDLEVEL_4 * @arg @ref LL_PWR_PVDLEVEL_5 * @arg @ref LL_PWR_PVDLEVEL_6 * @arg @ref LL_PWR_PVDLEVEL_7 */ __STATIC_INLINE uint32_t LL_PWR_GetPVDLevel(void) { return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_PLS)); } /** * @brief Enable Power Voltage Detector * @rmtoll CR PVDE LL_PWR_EnablePVD * @retval None */ __STATIC_INLINE void LL_PWR_EnablePVD(void) { SET_BIT(PWR->CR, PWR_CR_PVDE); } /** * @brief Disable Power Voltage Detector * @rmtoll CR PVDE LL_PWR_DisablePVD * @retval None */ __STATIC_INLINE void LL_PWR_DisablePVD(void) { CLEAR_BIT(PWR->CR, PWR_CR_PVDE); } /** * @brief Check if Power Voltage Detector is enabled * @rmtoll CR PVDE LL_PWR_IsEnabledPVD * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledPVD(void) { return (READ_BIT(PWR->CR, PWR_CR_PVDE) == (PWR_CR_PVDE)); } #endif /* PWR_PVD_SUPPORT */ /** * @brief Enable the WakeUp PINx functionality * @rmtoll CSR EWUP1 LL_PWR_EnableWakeUpPin\n * @rmtoll CSR EWUP2 LL_PWR_EnableWakeUpPin\n * @rmtoll CSR EWUP3 LL_PWR_EnableWakeUpPin * @param WakeUpPin This parameter can be one of the following values: * @arg @ref LL_PWR_WAKEUP_PIN1 * @arg @ref LL_PWR_WAKEUP_PIN2 * @arg @ref LL_PWR_WAKEUP_PIN3 (*) * * (*) not available on all devices * @retval None */ __STATIC_INLINE void LL_PWR_EnableWakeUpPin(uint32_t WakeUpPin) { SET_BIT(PWR->CSR, WakeUpPin); } /** * @brief Disable the WakeUp PINx functionality * @rmtoll CSR EWUP1 LL_PWR_DisableWakeUpPin\n * @rmtoll CSR EWUP2 LL_PWR_DisableWakeUpPin\n * @rmtoll CSR EWUP3 LL_PWR_DisableWakeUpPin * @param WakeUpPin This parameter can be one of the following values: * @arg @ref LL_PWR_WAKEUP_PIN1 * @arg @ref LL_PWR_WAKEUP_PIN2 * @arg @ref LL_PWR_WAKEUP_PIN3 (*) * * (*) not available on all devices * @retval None */ __STATIC_INLINE void LL_PWR_DisableWakeUpPin(uint32_t WakeUpPin) { CLEAR_BIT(PWR->CSR, WakeUpPin); } /** * @brief Check if the WakeUp PINx functionality is enabled * @rmtoll CSR EWUP1 LL_PWR_IsEnabledWakeUpPin\n * @rmtoll CSR EWUP2 LL_PWR_IsEnabledWakeUpPin\n * @rmtoll CSR EWUP3 LL_PWR_IsEnabledWakeUpPin * @param WakeUpPin This parameter can be one of the following values: * @arg @ref LL_PWR_WAKEUP_PIN1 * @arg @ref LL_PWR_WAKEUP_PIN2 * @arg @ref LL_PWR_WAKEUP_PIN3 (*) * * (*) not available on all devices * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledWakeUpPin(uint32_t WakeUpPin) { return (READ_BIT(PWR->CSR, WakeUpPin) == (WakeUpPin)); } /** * @brief Enable ultra low-power mode by enabling VREFINT switch off in low-power modes * @rmtoll CR ULP LL_PWR_EnableUltraLowPower * @retval None */ __STATIC_INLINE void LL_PWR_EnableUltraLowPower(void) { SET_BIT(PWR->CR, PWR_CR_ULP); } /** * @brief Disable ultra low-power mode by disabling VREFINT switch off in low-power modes * @rmtoll CR ULP LL_PWR_DisableUltraLowPower * @retval None */ __STATIC_INLINE void LL_PWR_DisableUltraLowPower(void) { CLEAR_BIT(PWR->CR, PWR_CR_ULP); } /** * @brief Check if ultra low-power mode is enabled by checking if VREFINT switch off in low-power modes is enabled * @rmtoll CR ULP LL_PWR_IsEnabledUltraLowPower * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledUltraLowPower(void) { return (READ_BIT(PWR->CR, PWR_CR_ULP) == (PWR_CR_ULP)); } /** * @brief Enable fast wakeup by ignoring VREFINT startup time when exiting from low-power mode * @rmtoll CR FWU LL_PWR_EnableFastWakeUp * @note Works in conjunction with ultra low power mode. * @retval None */ __STATIC_INLINE void LL_PWR_EnableFastWakeUp(void) { SET_BIT(PWR->CR, PWR_CR_FWU); } /** * @brief Disable fast wakeup by waiting VREFINT startup time when exiting from low-power mode * @rmtoll CR FWU LL_PWR_DisableFastWakeUp * @note Works in conjunction with ultra low power mode. * @retval None */ __STATIC_INLINE void LL_PWR_DisableFastWakeUp(void) { CLEAR_BIT(PWR->CR, PWR_CR_FWU); } /** * @brief Check if fast wakeup is enabled by checking if VREFINT startup time when exiting from low-power mode is ignored * @rmtoll CR FWU LL_PWR_IsEnabledFastWakeUp * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledFastWakeUp(void) { return (READ_BIT(PWR->CR, PWR_CR_FWU) == (PWR_CR_FWU)); } /** * @brief Enable non-volatile memory (Flash and EEPROM) keeping off feature when exiting from low-power mode * @rmtoll CR DS_EE_KOFF LL_PWR_EnableNVMKeptOff * @note When enabled, after entering low-power mode (Stop or Standby only), if RUN_PD of FLASH_ACR register * is also set, the Flash memory will not be woken up when exiting from deepsleep mode. * When enabled, the EEPROM will not be woken up when exiting from low-power mode (if the bit RUN_PD is set) * @retval None */ __STATIC_INLINE void LL_PWR_EnableNVMKeptOff(void) { SET_BIT(PWR->CR, PWR_CR_DSEEKOFF); } /** * @brief Disable non-volatile memory (Flash and EEPROM) keeping off feature when exiting from low-power mode * @rmtoll CR DS_EE_KOFF LL_PWR_DisableNVMKeptOff * @note When disabled, Flash memory is woken up when exiting from deepsleep mode even if the bit RUN_PD is set * @retval None */ __STATIC_INLINE void LL_PWR_DisableNVMKeptOff(void) { CLEAR_BIT(PWR->CR, PWR_CR_DSEEKOFF); } /** * @brief Check if non-volatile memory (Flash and EEPROM) keeping off feature when exiting from low-power mode is enabled * @rmtoll CR DS_EE_KOFF LL_PWR_IsEnabledNVMKeptOff * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsEnabledNVMKeptOff(void) { return (READ_BIT(PWR->CR, PWR_CR_DSEEKOFF) == (PWR_CR_DSEEKOFF)); } /** * @} */ /** @defgroup PWR_LL_EF_FLAG_Management FLAG_Management * @{ */ /** * @brief Get Wake-up Flag * @rmtoll CSR WUF LL_PWR_IsActiveFlag_WU * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_WU(void) { return (READ_BIT(PWR->CSR, PWR_CSR_WUF) == (PWR_CSR_WUF)); } /** * @brief Get Standby Flag * @rmtoll CSR SBF LL_PWR_IsActiveFlag_SB * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_SB(void) { return (READ_BIT(PWR->CSR, PWR_CSR_SBF) == (PWR_CSR_SBF)); } #if defined(PWR_PVD_SUPPORT) /** * @brief Indicate whether VDD voltage is below the selected PVD threshold * @rmtoll CSR PVDO LL_PWR_IsActiveFlag_PVDO * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_PVDO(void) { return (READ_BIT(PWR->CSR, PWR_CSR_PVDO) == (PWR_CSR_PVDO)); } #endif /* PWR_PVD_SUPPORT */ #if defined(PWR_CSR_VREFINTRDYF) /** * @brief Get Internal Reference VrefInt Flag * @rmtoll CSR VREFINTRDYF LL_PWR_IsActiveFlag_VREFINTRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_VREFINTRDY(void) { return (READ_BIT(PWR->CSR, PWR_CSR_VREFINTRDYF) == (PWR_CSR_VREFINTRDYF)); } #endif /* PWR_CSR_VREFINTRDYF */ /** * @brief Indicate whether the regulator is ready in the selected voltage range or if its output voltage is still changing to the required voltage level * @rmtoll CSR VOSF LL_PWR_IsActiveFlag_VOSF * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_VOSF(void) { return (READ_BIT(PWR->CSR, LL_PWR_CSR_VOS) == (LL_PWR_CSR_VOS)); } /** * @brief Indicate whether the regulator is ready in main mode or is in low-power mode * @rmtoll CSR REGLPF LL_PWR_IsActiveFlag_REGLPF * @note Take care, return value "0" means the regulator is ready. Return value "1" means the output voltage range is still changing. * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_REGLPF(void) { return (READ_BIT(PWR->CSR, PWR_CSR_REGLPF) == (PWR_CSR_REGLPF)); } /** * @brief Clear Standby Flag * @rmtoll CR CSBF LL_PWR_ClearFlag_SB * @retval None */ __STATIC_INLINE void LL_PWR_ClearFlag_SB(void) { SET_BIT(PWR->CR, PWR_CR_CSBF); } /** * @brief Clear Wake-up Flags * @rmtoll CR CWUF LL_PWR_ClearFlag_WU * @retval None */ __STATIC_INLINE void LL_PWR_ClearFlag_WU(void) { SET_BIT(PWR->CR, PWR_CR_CWUF); } #if defined(USE_FULL_LL_DRIVER) /** @defgroup PWR_LL_EF_Init De-initialization function * @{ */ ErrorStatus LL_PWR_DeInit(void); /** * @} */ #endif /* USE_FULL_LL_DRIVER */ /** * @} */ /** * @} */ /** * @} */ #endif /* defined(PWR) */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32L0xx_LL_PWR_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/