/** ****************************************************************************** * @file stm32l1xx_ll_rcc.h * @author MCD Application Team * @brief Header file of RCC LL module. ****************************************************************************** * @attention * *

© Copyright(c) 2017 STMicroelectronics. * All rights reserved.

* * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32L1xx_LL_RCC_H #define __STM32L1xx_LL_RCC_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32l1xx.h" /** @addtogroup STM32L1xx_LL_Driver * @{ */ #if defined(RCC) /** @defgroup RCC_LL RCC * @{ */ /* Private types -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private constants ---------------------------------------------------------*/ /* Private macros ------------------------------------------------------------*/ /* Exported types ------------------------------------------------------------*/ #if defined(USE_FULL_LL_DRIVER) /** @defgroup RCC_LL_Exported_Types RCC Exported Types * @{ */ /** @defgroup LL_ES_CLOCK_FREQ Clocks Frequency Structure * @{ */ /** * @brief RCC Clocks Frequency Structure */ typedef struct { uint32_t SYSCLK_Frequency; /*!< SYSCLK clock frequency */ uint32_t HCLK_Frequency; /*!< HCLK clock frequency */ uint32_t PCLK1_Frequency; /*!< PCLK1 clock frequency */ uint32_t PCLK2_Frequency; /*!< PCLK2 clock frequency */ } LL_RCC_ClocksTypeDef; /** * @} */ /** * @} */ #endif /* USE_FULL_LL_DRIVER */ /* Exported constants --------------------------------------------------------*/ /** @defgroup RCC_LL_Exported_Constants RCC Exported Constants * @{ */ /** @defgroup RCC_LL_EC_OSC_VALUES Oscillator Values adaptation * @brief Defines used to adapt values of different oscillators * @note These values could be modified in the user environment according to * HW set-up. * @{ */ #if !defined (HSE_VALUE) #define HSE_VALUE 8000000U /*!< Value of the HSE oscillator in Hz */ #endif /* HSE_VALUE */ #if !defined (HSI_VALUE) #define HSI_VALUE 16000000U /*!< Value of the HSI oscillator in Hz */ #endif /* HSI_VALUE */ #if !defined (LSE_VALUE) #define LSE_VALUE 32768U /*!< Value of the LSE oscillator in Hz */ #endif /* LSE_VALUE */ #if !defined (LSI_VALUE) #define LSI_VALUE 37000U /*!< Value of the LSI oscillator in Hz */ #endif /* LSI_VALUE */ /** * @} */ /** @defgroup RCC_LL_EC_CLEAR_FLAG Clear Flags Defines * @brief Flags defines which can be used with LL_RCC_WriteReg function * @{ */ #define LL_RCC_CIR_LSIRDYC RCC_CIR_LSIRDYC /*!< LSI Ready Interrupt Clear */ #define LL_RCC_CIR_LSERDYC RCC_CIR_LSERDYC /*!< LSE Ready Interrupt Clear */ #define LL_RCC_CIR_HSIRDYC RCC_CIR_HSIRDYC /*!< HSI Ready Interrupt Clear */ #define LL_RCC_CIR_HSERDYC RCC_CIR_HSERDYC /*!< HSE Ready Interrupt Clear */ #define LL_RCC_CIR_PLLRDYC RCC_CIR_PLLRDYC /*!< PLL Ready Interrupt Clear */ #define LL_RCC_CIR_MSIRDYC RCC_CIR_MSIRDYC /*!< MSI Ready Interrupt Clear */ #if defined(RCC_LSECSS_SUPPORT) #define LL_RCC_CIR_LSECSSC RCC_CIR_LSECSSC /*!< LSE Clock Security System Interrupt Clear */ #endif /* RCC_LSECSS_SUPPORT */ #define LL_RCC_CIR_CSSC RCC_CIR_CSSC /*!< Clock Security System Interrupt Clear */ /** * @} */ /** @defgroup RCC_LL_EC_GET_FLAG Get Flags Defines * @brief Flags defines which can be used with LL_RCC_ReadReg function * @{ */ #define LL_RCC_CIR_LSIRDYF RCC_CIR_LSIRDYF /*!< LSI Ready Interrupt flag */ #define LL_RCC_CIR_LSERDYF RCC_CIR_LSERDYF /*!< LSE Ready Interrupt flag */ #define LL_RCC_CIR_HSIRDYF RCC_CIR_HSIRDYF /*!< HSI Ready Interrupt flag */ #define LL_RCC_CIR_HSERDYF RCC_CIR_HSERDYF /*!< HSE Ready Interrupt flag */ #define LL_RCC_CIR_PLLRDYF RCC_CIR_PLLRDYF /*!< PLL Ready Interrupt flag */ #define LL_RCC_CIR_MSIRDYF RCC_CIR_MSIRDYF /*!< MSI Ready Interrupt flag */ #if defined(RCC_LSECSS_SUPPORT) #define LL_RCC_CIR_LSECSSF RCC_CIR_LSECSSF /*!< LSE Clock Security System Interrupt flag */ #endif /* RCC_LSECSS_SUPPORT */ #define LL_RCC_CIR_CSSF RCC_CIR_CSSF /*!< Clock Security System Interrupt flag */ #define LL_RCC_CSR_OBLRSTF RCC_CSR_OBLRSTF /*!< OBL reset flag */ #define LL_RCC_CSR_PINRSTF RCC_CSR_PINRSTF /*!< PIN reset flag */ #define LL_RCC_CSR_PORRSTF RCC_CSR_PORRSTF /*!< POR/PDR reset flag */ #define LL_RCC_CSR_SFTRSTF RCC_CSR_SFTRSTF /*!< Software Reset flag */ #define LL_RCC_CSR_IWDGRSTF RCC_CSR_IWDGRSTF /*!< Independent Watchdog reset flag */ #define LL_RCC_CSR_WWDGRSTF RCC_CSR_WWDGRSTF /*!< Window watchdog reset flag */ #define LL_RCC_CSR_LPWRRSTF RCC_CSR_LPWRRSTF /*!< Low-Power reset flag */ /** * @} */ /** @defgroup RCC_LL_EC_IT IT Defines * @brief IT defines which can be used with LL_RCC_ReadReg and LL_RCC_WriteReg functions * @{ */ #define LL_RCC_CIR_LSIRDYIE RCC_CIR_LSIRDYIE /*!< LSI Ready Interrupt Enable */ #define LL_RCC_CIR_LSERDYIE RCC_CIR_LSERDYIE /*!< LSE Ready Interrupt Enable */ #define LL_RCC_CIR_HSIRDYIE RCC_CIR_HSIRDYIE /*!< HSI Ready Interrupt Enable */ #define LL_RCC_CIR_HSERDYIE RCC_CIR_HSERDYIE /*!< HSE Ready Interrupt Enable */ #define LL_RCC_CIR_PLLRDYIE RCC_CIR_PLLRDYIE /*!< PLL Ready Interrupt Enable */ #define LL_RCC_CIR_MSIRDYIE RCC_CIR_MSIRDYIE /*!< MSI Ready Interrupt Enable */ #if defined(RCC_LSECSS_SUPPORT) #define LL_RCC_CIR_LSECSSIE RCC_CIR_LSECSSIE /*!< LSE CSS Interrupt Enable */ #endif /* RCC_LSECSS_SUPPORT */ /** * @} */ /** @defgroup RCC_LL_EC_RTC_HSE_DIV RTC HSE Prescaler * @{ */ #define LL_RCC_RTC_HSE_DIV_2 0x00000000U /*!< HSE is divided by 2 for RTC clock */ #define LL_RCC_RTC_HSE_DIV_4 RCC_CR_RTCPRE_0 /*!< HSE is divided by 4 for RTC clock */ #define LL_RCC_RTC_HSE_DIV_8 RCC_CR_RTCPRE_1 /*!< HSE is divided by 8 for RTC clock */ #define LL_RCC_RTC_HSE_DIV_16 RCC_CR_RTCPRE /*!< HSE is divided by 16 for RTC clock */ /** * @} */ /** @defgroup RCC_LL_EC_MSIRANGE MSI clock ranges * @{ */ #define LL_RCC_MSIRANGE_0 RCC_ICSCR_MSIRANGE_0 /*!< MSI = 65.536 KHz */ #define LL_RCC_MSIRANGE_1 RCC_ICSCR_MSIRANGE_1 /*!< MSI = 131.072 KHz*/ #define LL_RCC_MSIRANGE_2 RCC_ICSCR_MSIRANGE_2 /*!< MSI = 262.144 KHz */ #define LL_RCC_MSIRANGE_3 RCC_ICSCR_MSIRANGE_3 /*!< MSI = 524.288 KHz */ #define LL_RCC_MSIRANGE_4 RCC_ICSCR_MSIRANGE_4 /*!< MSI = 1.048 MHz */ #define LL_RCC_MSIRANGE_5 RCC_ICSCR_MSIRANGE_5 /*!< MSI = 2.097 MHz */ #define LL_RCC_MSIRANGE_6 RCC_ICSCR_MSIRANGE_6 /*!< MSI = 4.194 MHz */ /** * @} */ /** @defgroup RCC_LL_EC_SYS_CLKSOURCE System clock switch * @{ */ #define LL_RCC_SYS_CLKSOURCE_MSI RCC_CFGR_SW_MSI /*!< MSI selection as system clock */ #define LL_RCC_SYS_CLKSOURCE_HSI RCC_CFGR_SW_HSI /*!< HSI selection as system clock */ #define LL_RCC_SYS_CLKSOURCE_HSE RCC_CFGR_SW_HSE /*!< HSE selection as system clock */ #define LL_RCC_SYS_CLKSOURCE_PLL RCC_CFGR_SW_PLL /*!< PLL selection as system clock */ /** * @} */ /** @defgroup RCC_LL_EC_SYS_CLKSOURCE_STATUS System clock switch status * @{ */ #define LL_RCC_SYS_CLKSOURCE_STATUS_MSI RCC_CFGR_SWS_MSI /*!< MSI used as system clock */ #define LL_RCC_SYS_CLKSOURCE_STATUS_HSI RCC_CFGR_SWS_HSI /*!< HSI used as system clock */ #define LL_RCC_SYS_CLKSOURCE_STATUS_HSE RCC_CFGR_SWS_HSE /*!< HSE used as system clock */ #define LL_RCC_SYS_CLKSOURCE_STATUS_PLL RCC_CFGR_SWS_PLL /*!< PLL used as system clock */ /** * @} */ /** @defgroup RCC_LL_EC_SYSCLK_DIV AHB prescaler * @{ */ #define LL_RCC_SYSCLK_DIV_1 RCC_CFGR_HPRE_DIV1 /*!< SYSCLK not divided */ #define LL_RCC_SYSCLK_DIV_2 RCC_CFGR_HPRE_DIV2 /*!< SYSCLK divided by 2 */ #define LL_RCC_SYSCLK_DIV_4 RCC_CFGR_HPRE_DIV4 /*!< SYSCLK divided by 4 */ #define LL_RCC_SYSCLK_DIV_8 RCC_CFGR_HPRE_DIV8 /*!< SYSCLK divided by 8 */ #define LL_RCC_SYSCLK_DIV_16 RCC_CFGR_HPRE_DIV16 /*!< SYSCLK divided by 16 */ #define LL_RCC_SYSCLK_DIV_64 RCC_CFGR_HPRE_DIV64 /*!< SYSCLK divided by 64 */ #define LL_RCC_SYSCLK_DIV_128 RCC_CFGR_HPRE_DIV128 /*!< SYSCLK divided by 128 */ #define LL_RCC_SYSCLK_DIV_256 RCC_CFGR_HPRE_DIV256 /*!< SYSCLK divided by 256 */ #define LL_RCC_SYSCLK_DIV_512 RCC_CFGR_HPRE_DIV512 /*!< SYSCLK divided by 512 */ /** * @} */ /** @defgroup RCC_LL_EC_APB1_DIV APB low-speed prescaler (APB1) * @{ */ #define LL_RCC_APB1_DIV_1 RCC_CFGR_PPRE1_DIV1 /*!< HCLK not divided */ #define LL_RCC_APB1_DIV_2 RCC_CFGR_PPRE1_DIV2 /*!< HCLK divided by 2 */ #define LL_RCC_APB1_DIV_4 RCC_CFGR_PPRE1_DIV4 /*!< HCLK divided by 4 */ #define LL_RCC_APB1_DIV_8 RCC_CFGR_PPRE1_DIV8 /*!< HCLK divided by 8 */ #define LL_RCC_APB1_DIV_16 RCC_CFGR_PPRE1_DIV16 /*!< HCLK divided by 16 */ /** * @} */ /** @defgroup RCC_LL_EC_APB2_DIV APB high-speed prescaler (APB2) * @{ */ #define LL_RCC_APB2_DIV_1 RCC_CFGR_PPRE2_DIV1 /*!< HCLK not divided */ #define LL_RCC_APB2_DIV_2 RCC_CFGR_PPRE2_DIV2 /*!< HCLK divided by 2 */ #define LL_RCC_APB2_DIV_4 RCC_CFGR_PPRE2_DIV4 /*!< HCLK divided by 4 */ #define LL_RCC_APB2_DIV_8 RCC_CFGR_PPRE2_DIV8 /*!< HCLK divided by 8 */ #define LL_RCC_APB2_DIV_16 RCC_CFGR_PPRE2_DIV16 /*!< HCLK divided by 16 */ /** * @} */ /** @defgroup RCC_LL_EC_MCO1SOURCE MCO1 SOURCE selection * @{ */ #define LL_RCC_MCO1SOURCE_NOCLOCK RCC_CFGR_MCOSEL_NOCLOCK /*!< MCO output disabled, no clock on MCO */ #define LL_RCC_MCO1SOURCE_SYSCLK RCC_CFGR_MCOSEL_SYSCLK /*!< SYSCLK selection as MCO source */ #define LL_RCC_MCO1SOURCE_HSI RCC_CFGR_MCOSEL_HSI /*!< HSI selection as MCO source */ #define LL_RCC_MCO1SOURCE_MSI RCC_CFGR_MCOSEL_MSI /*!< MSI selection as MCO source */ #define LL_RCC_MCO1SOURCE_HSE RCC_CFGR_MCOSEL_HSE /*!< HSE selection as MCO source */ #define LL_RCC_MCO1SOURCE_LSI RCC_CFGR_MCOSEL_LSI /*!< LSI selection as MCO source */ #define LL_RCC_MCO1SOURCE_LSE RCC_CFGR_MCOSEL_LSE /*!< LSE selection as MCO source */ #define LL_RCC_MCO1SOURCE_PLLCLK RCC_CFGR_MCOSEL_PLL /*!< PLLCLK selection as MCO source */ /** * @} */ /** @defgroup RCC_LL_EC_MCO1_DIV MCO1 prescaler * @{ */ #define LL_RCC_MCO1_DIV_1 RCC_CFGR_MCOPRE_DIV1 /*!< MCO Clock divided by 1 */ #define LL_RCC_MCO1_DIV_2 RCC_CFGR_MCOPRE_DIV2 /*!< MCO Clock divided by 2 */ #define LL_RCC_MCO1_DIV_4 RCC_CFGR_MCOPRE_DIV4 /*!< MCO Clock divided by 4 */ #define LL_RCC_MCO1_DIV_8 RCC_CFGR_MCOPRE_DIV8 /*!< MCO Clock divided by 8 */ #define LL_RCC_MCO1_DIV_16 RCC_CFGR_MCOPRE_DIV16 /*!< MCO Clock divided by 16 */ /** * @} */ #if defined(USE_FULL_LL_DRIVER) /** @defgroup RCC_LL_EC_PERIPH_FREQUENCY Peripheral clock frequency * @{ */ #define LL_RCC_PERIPH_FREQUENCY_NO 0x00000000U /*!< No clock enabled for the peripheral */ #define LL_RCC_PERIPH_FREQUENCY_NA 0xFFFFFFFFU /*!< Frequency cannot be provided as external clock */ /** * @} */ #endif /* USE_FULL_LL_DRIVER */ /** @defgroup RCC_LL_EC_RTC_CLKSOURCE RTC clock source selection * @{ */ #define LL_RCC_RTC_CLKSOURCE_NONE 0x00000000U /*!< No clock used as RTC clock */ #define LL_RCC_RTC_CLKSOURCE_LSE RCC_CSR_RTCSEL_LSE /*!< LSE oscillator clock used as RTC clock */ #define LL_RCC_RTC_CLKSOURCE_LSI RCC_CSR_RTCSEL_LSI /*!< LSI oscillator clock used as RTC clock */ #define LL_RCC_RTC_CLKSOURCE_HSE RCC_CSR_RTCSEL_HSE /*!< HSE oscillator clock divided by a programmable prescaler (selection through @ref LL_RCC_SetRTC_HSEPrescaler function ) */ /** * @} */ /** @defgroup RCC_LL_EC_PLL_MUL PLL Multiplicator factor * @{ */ #define LL_RCC_PLL_MUL_3 RCC_CFGR_PLLMUL3 /*!< PLL input clock * 3 */ #define LL_RCC_PLL_MUL_4 RCC_CFGR_PLLMUL4 /*!< PLL input clock * 4 */ #define LL_RCC_PLL_MUL_6 RCC_CFGR_PLLMUL6 /*!< PLL input clock * 6 */ #define LL_RCC_PLL_MUL_8 RCC_CFGR_PLLMUL8 /*!< PLL input clock * 8 */ #define LL_RCC_PLL_MUL_12 RCC_CFGR_PLLMUL12 /*!< PLL input clock * 12 */ #define LL_RCC_PLL_MUL_16 RCC_CFGR_PLLMUL16 /*!< PLL input clock * 16 */ #define LL_RCC_PLL_MUL_24 RCC_CFGR_PLLMUL24 /*!< PLL input clock * 24 */ #define LL_RCC_PLL_MUL_32 RCC_CFGR_PLLMUL32 /*!< PLL input clock * 32 */ #define LL_RCC_PLL_MUL_48 RCC_CFGR_PLLMUL48 /*!< PLL input clock * 48 */ /** * @} */ /** @defgroup RCC_LL_EC_PLL_DIV PLL division factor * @{ */ #define LL_RCC_PLL_DIV_2 RCC_CFGR_PLLDIV2 /*!< PLL clock output = PLLVCO / 2 */ #define LL_RCC_PLL_DIV_3 RCC_CFGR_PLLDIV3 /*!< PLL clock output = PLLVCO / 3 */ #define LL_RCC_PLL_DIV_4 RCC_CFGR_PLLDIV4 /*!< PLL clock output = PLLVCO / 4 */ /** * @} */ /** @defgroup RCC_LL_EC_PLLSOURCE PLL SOURCE * @{ */ #define LL_RCC_PLLSOURCE_HSI RCC_CFGR_PLLSRC_HSI /*!< HSI clock selected as PLL entry clock source */ #define LL_RCC_PLLSOURCE_HSE RCC_CFGR_PLLSRC_HSE /*!< HSE clock selected as PLL entry clock source */ /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /** @defgroup RCC_LL_Exported_Macros RCC Exported Macros * @{ */ /** @defgroup RCC_LL_EM_WRITE_READ Common Write and read registers Macros * @{ */ /** * @brief Write a value in RCC register * @param __REG__ Register to be written * @param __VALUE__ Value to be written in the register * @retval None */ #define LL_RCC_WriteReg(__REG__, __VALUE__) WRITE_REG(RCC->__REG__, (__VALUE__)) /** * @brief Read a value in RCC register * @param __REG__ Register to be read * @retval Register value */ #define LL_RCC_ReadReg(__REG__) READ_REG(RCC->__REG__) /** * @} */ /** @defgroup RCC_LL_EM_CALC_FREQ Calculate frequencies * @{ */ /** * @brief Helper macro to calculate the PLLCLK frequency * @note ex: @ref __LL_RCC_CALC_PLLCLK_FREQ (HSE_VALUE, * @ref LL_RCC_PLL_GetMultiplicator (), * @ref LL_RCC_PLL_GetDivider ()); * @param __INPUTFREQ__ PLL Input frequency (based on MSI/HSE/HSI) * @param __PLLMUL__ This parameter can be one of the following values: * @arg @ref LL_RCC_PLL_MUL_3 * @arg @ref LL_RCC_PLL_MUL_4 * @arg @ref LL_RCC_PLL_MUL_6 * @arg @ref LL_RCC_PLL_MUL_8 * @arg @ref LL_RCC_PLL_MUL_12 * @arg @ref LL_RCC_PLL_MUL_16 * @arg @ref LL_RCC_PLL_MUL_24 * @arg @ref LL_RCC_PLL_MUL_32 * @arg @ref LL_RCC_PLL_MUL_48 * @param __PLLDIV__ This parameter can be one of the following values: * @arg @ref LL_RCC_PLL_DIV_2 * @arg @ref LL_RCC_PLL_DIV_3 * @arg @ref LL_RCC_PLL_DIV_4 * @retval PLL clock frequency (in Hz) */ #define __LL_RCC_CALC_PLLCLK_FREQ(__INPUTFREQ__, __PLLMUL__, __PLLDIV__) ((__INPUTFREQ__) * (PLLMulTable[(__PLLMUL__) >> RCC_CFGR_PLLMUL_Pos]) / (((__PLLDIV__) >> RCC_CFGR_PLLDIV_Pos)+1U)) /** * @brief Helper macro to calculate the HCLK frequency * @note: __AHBPRESCALER__ be retrieved by @ref LL_RCC_GetAHBPrescaler * ex: __LL_RCC_CALC_HCLK_FREQ(LL_RCC_GetAHBPrescaler()) * @param __SYSCLKFREQ__ SYSCLK frequency (based on MSI/HSE/HSI/PLLCLK) * @param __AHBPRESCALER__ This parameter can be one of the following values: * @arg @ref LL_RCC_SYSCLK_DIV_1 * @arg @ref LL_RCC_SYSCLK_DIV_2 * @arg @ref LL_RCC_SYSCLK_DIV_4 * @arg @ref LL_RCC_SYSCLK_DIV_8 * @arg @ref LL_RCC_SYSCLK_DIV_16 * @arg @ref LL_RCC_SYSCLK_DIV_64 * @arg @ref LL_RCC_SYSCLK_DIV_128 * @arg @ref LL_RCC_SYSCLK_DIV_256 * @arg @ref LL_RCC_SYSCLK_DIV_512 * @retval HCLK clock frequency (in Hz) */ #define __LL_RCC_CALC_HCLK_FREQ(__SYSCLKFREQ__, __AHBPRESCALER__) ((__SYSCLKFREQ__) >> AHBPrescTable[((__AHBPRESCALER__) & RCC_CFGR_HPRE) >> RCC_CFGR_HPRE_Pos]) /** * @brief Helper macro to calculate the PCLK1 frequency (ABP1) * @note: __APB1PRESCALER__ be retrieved by @ref LL_RCC_GetAPB1Prescaler * ex: __LL_RCC_CALC_PCLK1_FREQ(LL_RCC_GetAPB1Prescaler()) * @param __HCLKFREQ__ HCLK frequency * @param __APB1PRESCALER__ This parameter can be one of the following values: * @arg @ref LL_RCC_APB1_DIV_1 * @arg @ref LL_RCC_APB1_DIV_2 * @arg @ref LL_RCC_APB1_DIV_4 * @arg @ref LL_RCC_APB1_DIV_8 * @arg @ref LL_RCC_APB1_DIV_16 * @retval PCLK1 clock frequency (in Hz) */ #define __LL_RCC_CALC_PCLK1_FREQ(__HCLKFREQ__, __APB1PRESCALER__) ((__HCLKFREQ__) >> APBPrescTable[(__APB1PRESCALER__) >> RCC_CFGR_PPRE1_Pos]) /** * @brief Helper macro to calculate the PCLK2 frequency (ABP2) * @note: __APB2PRESCALER__ be retrieved by @ref LL_RCC_GetAPB2Prescaler * ex: __LL_RCC_CALC_PCLK2_FREQ(LL_RCC_GetAPB2Prescaler()) * @param __HCLKFREQ__ HCLK frequency * @param __APB2PRESCALER__ This parameter can be one of the following values: * @arg @ref LL_RCC_APB2_DIV_1 * @arg @ref LL_RCC_APB2_DIV_2 * @arg @ref LL_RCC_APB2_DIV_4 * @arg @ref LL_RCC_APB2_DIV_8 * @arg @ref LL_RCC_APB2_DIV_16 * @retval PCLK2 clock frequency (in Hz) */ #define __LL_RCC_CALC_PCLK2_FREQ(__HCLKFREQ__, __APB2PRESCALER__) ((__HCLKFREQ__) >> APBPrescTable[(__APB2PRESCALER__) >> RCC_CFGR_PPRE2_Pos]) /** * @brief Helper macro to calculate the MSI frequency (in Hz) * @note: __MSIRANGE__can be retrieved by @ref LL_RCC_MSI_GetRange * ex: __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_GetRange()) * @param __MSIRANGE__ This parameter can be one of the following values: * @arg @ref LL_RCC_MSIRANGE_0 * @arg @ref LL_RCC_MSIRANGE_1 * @arg @ref LL_RCC_MSIRANGE_2 * @arg @ref LL_RCC_MSIRANGE_3 * @arg @ref LL_RCC_MSIRANGE_4 * @arg @ref LL_RCC_MSIRANGE_5 * @arg @ref LL_RCC_MSIRANGE_6 * @retval MSI clock frequency (in Hz) */ #define __LL_RCC_CALC_MSI_FREQ(__MSIRANGE__) ((32768U * ( 1UL << (((__MSIRANGE__) >> RCC_ICSCR_MSIRANGE_Pos) + 1U)))) /** * @} */ /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @defgroup RCC_LL_Exported_Functions RCC Exported Functions * @{ */ /** @defgroup RCC_LL_EF_HSE HSE * @{ */ /** * @brief Enable the Clock Security System. * @rmtoll CR CSSON LL_RCC_HSE_EnableCSS * @retval None */ __STATIC_INLINE void LL_RCC_HSE_EnableCSS(void) { SET_BIT(RCC->CR, RCC_CR_CSSON); } /** * @brief Disable the Clock Security System. * @note Cannot be disabled in HSE is ready (only by hardware) * @rmtoll CR CSSON LL_RCC_HSE_DisableCSS * @retval None */ __STATIC_INLINE void LL_RCC_HSE_DisableCSS(void) { CLEAR_BIT(RCC->CR, RCC_CR_CSSON); } /** * @brief Enable HSE external oscillator (HSE Bypass) * @rmtoll CR HSEBYP LL_RCC_HSE_EnableBypass * @retval None */ __STATIC_INLINE void LL_RCC_HSE_EnableBypass(void) { SET_BIT(RCC->CR, RCC_CR_HSEBYP); } /** * @brief Disable HSE external oscillator (HSE Bypass) * @rmtoll CR HSEBYP LL_RCC_HSE_DisableBypass * @retval None */ __STATIC_INLINE void LL_RCC_HSE_DisableBypass(void) { CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP); } /** * @brief Enable HSE crystal oscillator (HSE ON) * @rmtoll CR HSEON LL_RCC_HSE_Enable * @retval None */ __STATIC_INLINE void LL_RCC_HSE_Enable(void) { SET_BIT(RCC->CR, RCC_CR_HSEON); } /** * @brief Disable HSE crystal oscillator (HSE ON) * @rmtoll CR HSEON LL_RCC_HSE_Disable * @retval None */ __STATIC_INLINE void LL_RCC_HSE_Disable(void) { CLEAR_BIT(RCC->CR, RCC_CR_HSEON); } /** * @brief Check if HSE oscillator Ready * @rmtoll CR HSERDY LL_RCC_HSE_IsReady * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_HSE_IsReady(void) { return ((READ_BIT(RCC->CR, RCC_CR_HSERDY) == RCC_CR_HSERDY) ? 1UL : 0UL); } /** * @brief Configure the RTC prescaler (divider) * @rmtoll CR RTCPRE LL_RCC_SetRTC_HSEPrescaler * @param Div This parameter can be one of the following values: * @arg @ref LL_RCC_RTC_HSE_DIV_2 * @arg @ref LL_RCC_RTC_HSE_DIV_4 * @arg @ref LL_RCC_RTC_HSE_DIV_8 * @arg @ref LL_RCC_RTC_HSE_DIV_16 * @retval None */ __STATIC_INLINE void LL_RCC_SetRTC_HSEPrescaler(uint32_t Div) { MODIFY_REG(RCC->CR, RCC_CR_RTCPRE, Div); } /** * @brief Get the RTC divider (prescaler) * @rmtoll CR RTCPRE LL_RCC_GetRTC_HSEPrescaler * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_RTC_HSE_DIV_2 * @arg @ref LL_RCC_RTC_HSE_DIV_4 * @arg @ref LL_RCC_RTC_HSE_DIV_8 * @arg @ref LL_RCC_RTC_HSE_DIV_16 */ __STATIC_INLINE uint32_t LL_RCC_GetRTC_HSEPrescaler(void) { return (uint32_t)(READ_BIT(RCC->CR, RCC_CR_RTCPRE)); } /** * @} */ /** @defgroup RCC_LL_EF_HSI HSI * @{ */ /** * @brief Enable HSI oscillator * @rmtoll CR HSION LL_RCC_HSI_Enable * @retval None */ __STATIC_INLINE void LL_RCC_HSI_Enable(void) { SET_BIT(RCC->CR, RCC_CR_HSION); } /** * @brief Disable HSI oscillator * @rmtoll CR HSION LL_RCC_HSI_Disable * @retval None */ __STATIC_INLINE void LL_RCC_HSI_Disable(void) { CLEAR_BIT(RCC->CR, RCC_CR_HSION); } /** * @brief Check if HSI clock is ready * @rmtoll CR HSIRDY LL_RCC_HSI_IsReady * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_HSI_IsReady(void) { return ((READ_BIT(RCC->CR, RCC_CR_HSIRDY) == RCC_CR_HSIRDY) ? 1UL : 0UL); } /** * @brief Get HSI Calibration value * @note When HSITRIM is written, HSICAL is updated with the sum of * HSITRIM and the factory trim value * @rmtoll ICSCR HSICAL LL_RCC_HSI_GetCalibration * @retval Between Min_Data = 0x00 and Max_Data = 0xFF */ __STATIC_INLINE uint32_t LL_RCC_HSI_GetCalibration(void) { return (uint32_t)(READ_BIT(RCC->ICSCR, RCC_ICSCR_HSICAL) >> RCC_ICSCR_HSICAL_Pos); } /** * @brief Set HSI Calibration trimming * @note user-programmable trimming value that is added to the HSICAL * @note Default value is 16, which, when added to the HSICAL value, * should trim the HSI to 16 MHz +/- 1 % * @rmtoll ICSCR HSITRIM LL_RCC_HSI_SetCalibTrimming * @param Value between Min_Data = 0x00 and Max_Data = 0x1F * @retval None */ __STATIC_INLINE void LL_RCC_HSI_SetCalibTrimming(uint32_t Value) { MODIFY_REG(RCC->ICSCR, RCC_ICSCR_HSITRIM, Value << RCC_ICSCR_HSITRIM_Pos); } /** * @brief Get HSI Calibration trimming * @rmtoll ICSCR HSITRIM LL_RCC_HSI_GetCalibTrimming * @retval Between Min_Data = 0x00 and Max_Data = 0x1F */ __STATIC_INLINE uint32_t LL_RCC_HSI_GetCalibTrimming(void) { return (uint32_t)(READ_BIT(RCC->ICSCR, RCC_ICSCR_HSITRIM) >> RCC_ICSCR_HSITRIM_Pos); } /** * @} */ /** @defgroup RCC_LL_EF_LSE LSE * @{ */ /** * @brief Enable Low Speed External (LSE) crystal. * @rmtoll CSR LSEON LL_RCC_LSE_Enable * @retval None */ __STATIC_INLINE void LL_RCC_LSE_Enable(void) { SET_BIT(RCC->CSR, RCC_CSR_LSEON); } /** * @brief Disable Low Speed External (LSE) crystal. * @rmtoll CSR LSEON LL_RCC_LSE_Disable * @retval None */ __STATIC_INLINE void LL_RCC_LSE_Disable(void) { CLEAR_BIT(RCC->CSR, RCC_CSR_LSEON); } /** * @brief Enable external clock source (LSE bypass). * @rmtoll CSR LSEBYP LL_RCC_LSE_EnableBypass * @retval None */ __STATIC_INLINE void LL_RCC_LSE_EnableBypass(void) { SET_BIT(RCC->CSR, RCC_CSR_LSEBYP); } /** * @brief Disable external clock source (LSE bypass). * @rmtoll CSR LSEBYP LL_RCC_LSE_DisableBypass * @retval None */ __STATIC_INLINE void LL_RCC_LSE_DisableBypass(void) { CLEAR_BIT(RCC->CSR, RCC_CSR_LSEBYP); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Enable Clock security system on LSE. * @rmtoll CSR LSECSSON LL_RCC_LSE_EnableCSS * @retval None */ __STATIC_INLINE void LL_RCC_LSE_EnableCSS(void) { SET_BIT(RCC->CSR, RCC_CSR_LSECSSON); } /** * @brief Disable Clock security system on LSE. * @note Clock security system can be disabled only after a LSE * failure detection. In that case it MUST be disabled by software. * @rmtoll CSR LSECSSON LL_RCC_LSE_DisableCSS * @retval None */ __STATIC_INLINE void LL_RCC_LSE_DisableCSS(void) { CLEAR_BIT(RCC->CSR, RCC_CSR_LSECSSON); } #endif /* RCC_LSECSS_SUPPORT */ /** * @brief Check if LSE oscillator Ready * @rmtoll CSR LSERDY LL_RCC_LSE_IsReady * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_LSE_IsReady(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_LSERDY) == RCC_CSR_LSERDY) ? 1UL : 0UL); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Check if CSS on LSE failure Detection * @rmtoll CSR LSECSSD LL_RCC_LSE_IsCSSDetected * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_LSE_IsCSSDetected(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_LSECSSD) == RCC_CSR_LSECSSD) ? 1UL : 0UL); } #endif /* RCC_LSECSS_SUPPORT */ /** * @} */ /** @defgroup RCC_LL_EF_LSI LSI * @{ */ /** * @brief Enable LSI Oscillator * @rmtoll CSR LSION LL_RCC_LSI_Enable * @retval None */ __STATIC_INLINE void LL_RCC_LSI_Enable(void) { SET_BIT(RCC->CSR, RCC_CSR_LSION); } /** * @brief Disable LSI Oscillator * @rmtoll CSR LSION LL_RCC_LSI_Disable * @retval None */ __STATIC_INLINE void LL_RCC_LSI_Disable(void) { CLEAR_BIT(RCC->CSR, RCC_CSR_LSION); } /** * @brief Check if LSI is Ready * @rmtoll CSR LSIRDY LL_RCC_LSI_IsReady * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_LSI_IsReady(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_LSIRDY) == RCC_CSR_LSIRDY) ? 1UL : 0UL); } /** * @} */ /** @defgroup RCC_LL_EF_MSI MSI * @{ */ /** * @brief Enable MSI oscillator * @rmtoll CR MSION LL_RCC_MSI_Enable * @retval None */ __STATIC_INLINE void LL_RCC_MSI_Enable(void) { SET_BIT(RCC->CR, RCC_CR_MSION); } /** * @brief Disable MSI oscillator * @rmtoll CR MSION LL_RCC_MSI_Disable * @retval None */ __STATIC_INLINE void LL_RCC_MSI_Disable(void) { CLEAR_BIT(RCC->CR, RCC_CR_MSION); } /** * @brief Check if MSI oscillator Ready * @rmtoll CR MSIRDY LL_RCC_MSI_IsReady * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_MSI_IsReady(void) { return ((READ_BIT(RCC->CR, RCC_CR_MSIRDY) == RCC_CR_MSIRDY) ? 1UL : 0UL); } /** * @brief Configure the Internal Multi Speed oscillator (MSI) clock range in run mode. * @rmtoll ICSCR MSIRANGE LL_RCC_MSI_SetRange * @param Range This parameter can be one of the following values: * @arg @ref LL_RCC_MSIRANGE_0 * @arg @ref LL_RCC_MSIRANGE_1 * @arg @ref LL_RCC_MSIRANGE_2 * @arg @ref LL_RCC_MSIRANGE_3 * @arg @ref LL_RCC_MSIRANGE_4 * @arg @ref LL_RCC_MSIRANGE_5 * @arg @ref LL_RCC_MSIRANGE_6 * @retval None */ __STATIC_INLINE void LL_RCC_MSI_SetRange(uint32_t Range) { MODIFY_REG(RCC->ICSCR, RCC_ICSCR_MSIRANGE, Range); } /** * @brief Get the Internal Multi Speed oscillator (MSI) clock range in run mode. * @rmtoll ICSCR MSIRANGE LL_RCC_MSI_GetRange * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_MSIRANGE_0 * @arg @ref LL_RCC_MSIRANGE_1 * @arg @ref LL_RCC_MSIRANGE_2 * @arg @ref LL_RCC_MSIRANGE_3 * @arg @ref LL_RCC_MSIRANGE_4 * @arg @ref LL_RCC_MSIRANGE_5 * @arg @ref LL_RCC_MSIRANGE_6 */ __STATIC_INLINE uint32_t LL_RCC_MSI_GetRange(void) { return (uint32_t)(READ_BIT(RCC->ICSCR, RCC_ICSCR_MSIRANGE)); } /** * @brief Get MSI Calibration value * @note When MSITRIM is written, MSICAL is updated with the sum of * MSITRIM and the factory trim value * @rmtoll ICSCR MSICAL LL_RCC_MSI_GetCalibration * @retval Between Min_Data = 0x00 and Max_Data = 0xFF */ __STATIC_INLINE uint32_t LL_RCC_MSI_GetCalibration(void) { return (uint32_t)(READ_BIT(RCC->ICSCR, RCC_ICSCR_MSICAL) >> RCC_ICSCR_MSICAL_Pos); } /** * @brief Set MSI Calibration trimming * @note user-programmable trimming value that is added to the MSICAL * @rmtoll ICSCR MSITRIM LL_RCC_MSI_SetCalibTrimming * @param Value between Min_Data = 0x00 and Max_Data = 0xFF * @retval None */ __STATIC_INLINE void LL_RCC_MSI_SetCalibTrimming(uint32_t Value) { MODIFY_REG(RCC->ICSCR, RCC_ICSCR_MSITRIM, Value << RCC_ICSCR_MSITRIM_Pos); } /** * @brief Get MSI Calibration trimming * @rmtoll ICSCR MSITRIM LL_RCC_MSI_GetCalibTrimming * @retval Between Min_Data = 0x00 and Max_Data = 0xFF */ __STATIC_INLINE uint32_t LL_RCC_MSI_GetCalibTrimming(void) { return (uint32_t)(READ_BIT(RCC->ICSCR, RCC_ICSCR_MSITRIM) >> RCC_ICSCR_MSITRIM_Pos); } /** * @} */ /** @defgroup RCC_LL_EF_System System * @{ */ /** * @brief Configure the system clock source * @rmtoll CFGR SW LL_RCC_SetSysClkSource * @param Source This parameter can be one of the following values: * @arg @ref LL_RCC_SYS_CLKSOURCE_MSI * @arg @ref LL_RCC_SYS_CLKSOURCE_HSI * @arg @ref LL_RCC_SYS_CLKSOURCE_HSE * @arg @ref LL_RCC_SYS_CLKSOURCE_PLL * @retval None */ __STATIC_INLINE void LL_RCC_SetSysClkSource(uint32_t Source) { MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, Source); } /** * @brief Get the system clock source * @rmtoll CFGR SWS LL_RCC_GetSysClkSource * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_SYS_CLKSOURCE_STATUS_MSI * @arg @ref LL_RCC_SYS_CLKSOURCE_STATUS_HSI * @arg @ref LL_RCC_SYS_CLKSOURCE_STATUS_HSE * @arg @ref LL_RCC_SYS_CLKSOURCE_STATUS_PLL */ __STATIC_INLINE uint32_t LL_RCC_GetSysClkSource(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_SWS)); } /** * @brief Set AHB prescaler * @rmtoll CFGR HPRE LL_RCC_SetAHBPrescaler * @param Prescaler This parameter can be one of the following values: * @arg @ref LL_RCC_SYSCLK_DIV_1 * @arg @ref LL_RCC_SYSCLK_DIV_2 * @arg @ref LL_RCC_SYSCLK_DIV_4 * @arg @ref LL_RCC_SYSCLK_DIV_8 * @arg @ref LL_RCC_SYSCLK_DIV_16 * @arg @ref LL_RCC_SYSCLK_DIV_64 * @arg @ref LL_RCC_SYSCLK_DIV_128 * @arg @ref LL_RCC_SYSCLK_DIV_256 * @arg @ref LL_RCC_SYSCLK_DIV_512 * @retval None */ __STATIC_INLINE void LL_RCC_SetAHBPrescaler(uint32_t Prescaler) { MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, Prescaler); } /** * @brief Set APB1 prescaler * @rmtoll CFGR PPRE1 LL_RCC_SetAPB1Prescaler * @param Prescaler This parameter can be one of the following values: * @arg @ref LL_RCC_APB1_DIV_1 * @arg @ref LL_RCC_APB1_DIV_2 * @arg @ref LL_RCC_APB1_DIV_4 * @arg @ref LL_RCC_APB1_DIV_8 * @arg @ref LL_RCC_APB1_DIV_16 * @retval None */ __STATIC_INLINE void LL_RCC_SetAPB1Prescaler(uint32_t Prescaler) { MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, Prescaler); } /** * @brief Set APB2 prescaler * @rmtoll CFGR PPRE2 LL_RCC_SetAPB2Prescaler * @param Prescaler This parameter can be one of the following values: * @arg @ref LL_RCC_APB2_DIV_1 * @arg @ref LL_RCC_APB2_DIV_2 * @arg @ref LL_RCC_APB2_DIV_4 * @arg @ref LL_RCC_APB2_DIV_8 * @arg @ref LL_RCC_APB2_DIV_16 * @retval None */ __STATIC_INLINE void LL_RCC_SetAPB2Prescaler(uint32_t Prescaler) { MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, Prescaler); } /** * @brief Get AHB prescaler * @rmtoll CFGR HPRE LL_RCC_GetAHBPrescaler * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_SYSCLK_DIV_1 * @arg @ref LL_RCC_SYSCLK_DIV_2 * @arg @ref LL_RCC_SYSCLK_DIV_4 * @arg @ref LL_RCC_SYSCLK_DIV_8 * @arg @ref LL_RCC_SYSCLK_DIV_16 * @arg @ref LL_RCC_SYSCLK_DIV_64 * @arg @ref LL_RCC_SYSCLK_DIV_128 * @arg @ref LL_RCC_SYSCLK_DIV_256 * @arg @ref LL_RCC_SYSCLK_DIV_512 */ __STATIC_INLINE uint32_t LL_RCC_GetAHBPrescaler(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_HPRE)); } /** * @brief Get APB1 prescaler * @rmtoll CFGR PPRE1 LL_RCC_GetAPB1Prescaler * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_APB1_DIV_1 * @arg @ref LL_RCC_APB1_DIV_2 * @arg @ref LL_RCC_APB1_DIV_4 * @arg @ref LL_RCC_APB1_DIV_8 * @arg @ref LL_RCC_APB1_DIV_16 */ __STATIC_INLINE uint32_t LL_RCC_GetAPB1Prescaler(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PPRE1)); } /** * @brief Get APB2 prescaler * @rmtoll CFGR PPRE2 LL_RCC_GetAPB2Prescaler * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_APB2_DIV_1 * @arg @ref LL_RCC_APB2_DIV_2 * @arg @ref LL_RCC_APB2_DIV_4 * @arg @ref LL_RCC_APB2_DIV_8 * @arg @ref LL_RCC_APB2_DIV_16 */ __STATIC_INLINE uint32_t LL_RCC_GetAPB2Prescaler(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PPRE2)); } /** * @} */ /** @defgroup RCC_LL_EF_MCO MCO * @{ */ /** * @brief Configure MCOx * @rmtoll CFGR MCOSEL LL_RCC_ConfigMCO\n * CFGR MCOPRE LL_RCC_ConfigMCO * @param MCOxSource This parameter can be one of the following values: * @arg @ref LL_RCC_MCO1SOURCE_NOCLOCK * @arg @ref LL_RCC_MCO1SOURCE_SYSCLK * @arg @ref LL_RCC_MCO1SOURCE_HSI * @arg @ref LL_RCC_MCO1SOURCE_MSI * @arg @ref LL_RCC_MCO1SOURCE_HSE * @arg @ref LL_RCC_MCO1SOURCE_PLLCLK * @arg @ref LL_RCC_MCO1SOURCE_LSI * @arg @ref LL_RCC_MCO1SOURCE_LSE * @param MCOxPrescaler This parameter can be one of the following values: * @arg @ref LL_RCC_MCO1_DIV_1 * @arg @ref LL_RCC_MCO1_DIV_2 * @arg @ref LL_RCC_MCO1_DIV_4 * @arg @ref LL_RCC_MCO1_DIV_8 * @arg @ref LL_RCC_MCO1_DIV_16 * @retval None */ __STATIC_INLINE void LL_RCC_ConfigMCO(uint32_t MCOxSource, uint32_t MCOxPrescaler) { MODIFY_REG(RCC->CFGR, RCC_CFGR_MCOSEL | RCC_CFGR_MCOPRE, MCOxSource | MCOxPrescaler); } /** * @} */ /** @defgroup RCC_LL_EF_RTC RTC * @{ */ /** * @brief Set RTC Clock Source * @note Once the RTC clock source has been selected, it cannot be changed any more unless * the Backup domain is reset, or unless a failure is detected on LSE (LSECSSD is * set). The RTCRST bit can be used to reset them. * @rmtoll CSR RTCSEL LL_RCC_SetRTCClockSource * @param Source This parameter can be one of the following values: * @arg @ref LL_RCC_RTC_CLKSOURCE_NONE * @arg @ref LL_RCC_RTC_CLKSOURCE_LSE * @arg @ref LL_RCC_RTC_CLKSOURCE_LSI * @arg @ref LL_RCC_RTC_CLKSOURCE_HSE * @retval None */ __STATIC_INLINE void LL_RCC_SetRTCClockSource(uint32_t Source) { MODIFY_REG(RCC->CSR, RCC_CSR_RTCSEL, Source); } /** * @brief Get RTC Clock Source * @rmtoll CSR RTCSEL LL_RCC_GetRTCClockSource * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_RTC_CLKSOURCE_NONE * @arg @ref LL_RCC_RTC_CLKSOURCE_LSE * @arg @ref LL_RCC_RTC_CLKSOURCE_LSI * @arg @ref LL_RCC_RTC_CLKSOURCE_HSE */ __STATIC_INLINE uint32_t LL_RCC_GetRTCClockSource(void) { return (uint32_t)(READ_BIT(RCC->CSR, RCC_CSR_RTCSEL)); } /** * @brief Enable RTC * @rmtoll CSR RTCEN LL_RCC_EnableRTC * @retval None */ __STATIC_INLINE void LL_RCC_EnableRTC(void) { SET_BIT(RCC->CSR, RCC_CSR_RTCEN); } /** * @brief Disable RTC * @rmtoll CSR RTCEN LL_RCC_DisableRTC * @retval None */ __STATIC_INLINE void LL_RCC_DisableRTC(void) { CLEAR_BIT(RCC->CSR, RCC_CSR_RTCEN); } /** * @brief Check if RTC has been enabled or not * @rmtoll CSR RTCEN LL_RCC_IsEnabledRTC * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledRTC(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_RTCEN) == RCC_CSR_RTCEN) ? 1UL : 0UL); } /** * @brief Force the Backup domain reset * @rmtoll CSR RTCRST LL_RCC_ForceBackupDomainReset * @retval None */ __STATIC_INLINE void LL_RCC_ForceBackupDomainReset(void) { SET_BIT(RCC->CSR, RCC_CSR_RTCRST); } /** * @brief Release the Backup domain reset * @rmtoll CSR RTCRST LL_RCC_ReleaseBackupDomainReset * @retval None */ __STATIC_INLINE void LL_RCC_ReleaseBackupDomainReset(void) { CLEAR_BIT(RCC->CSR, RCC_CSR_RTCRST); } /** * @} */ /** @defgroup RCC_LL_EF_PLL PLL * @{ */ /** * @brief Enable PLL * @rmtoll CR PLLON LL_RCC_PLL_Enable * @retval None */ __STATIC_INLINE void LL_RCC_PLL_Enable(void) { SET_BIT(RCC->CR, RCC_CR_PLLON); } /** * @brief Disable PLL * @note Cannot be disabled if the PLL clock is used as the system clock * @rmtoll CR PLLON LL_RCC_PLL_Disable * @retval None */ __STATIC_INLINE void LL_RCC_PLL_Disable(void) { CLEAR_BIT(RCC->CR, RCC_CR_PLLON); } /** * @brief Check if PLL Ready * @rmtoll CR PLLRDY LL_RCC_PLL_IsReady * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_PLL_IsReady(void) { return ((READ_BIT(RCC->CR, RCC_CR_PLLRDY) == RCC_CR_PLLRDY) ? 1UL : 0UL); } /** * @brief Configure PLL used for SYSCLK Domain * @rmtoll CFGR PLLSRC LL_RCC_PLL_ConfigDomain_SYS\n * CFGR PLLMUL LL_RCC_PLL_ConfigDomain_SYS\n * CFGR PLLDIV LL_RCC_PLL_ConfigDomain_SYS * @param Source This parameter can be one of the following values: * @arg @ref LL_RCC_PLLSOURCE_HSI * @arg @ref LL_RCC_PLLSOURCE_HSE * @param PLLMul This parameter can be one of the following values: * @arg @ref LL_RCC_PLL_MUL_3 * @arg @ref LL_RCC_PLL_MUL_4 * @arg @ref LL_RCC_PLL_MUL_6 * @arg @ref LL_RCC_PLL_MUL_8 * @arg @ref LL_RCC_PLL_MUL_12 * @arg @ref LL_RCC_PLL_MUL_16 * @arg @ref LL_RCC_PLL_MUL_24 * @arg @ref LL_RCC_PLL_MUL_32 * @arg @ref LL_RCC_PLL_MUL_48 * @param PLLDiv This parameter can be one of the following values: * @arg @ref LL_RCC_PLL_DIV_2 * @arg @ref LL_RCC_PLL_DIV_3 * @arg @ref LL_RCC_PLL_DIV_4 * @retval None */ __STATIC_INLINE void LL_RCC_PLL_ConfigDomain_SYS(uint32_t Source, uint32_t PLLMul, uint32_t PLLDiv) { MODIFY_REG(RCC->CFGR, RCC_CFGR_PLLSRC | RCC_CFGR_PLLMUL | RCC_CFGR_PLLDIV, Source | PLLMul | PLLDiv); } /** * @brief Configure PLL clock source * @rmtoll CFGR PLLSRC LL_RCC_PLL_SetMainSource * @param PLLSource This parameter can be one of the following values: * @arg @ref LL_RCC_PLLSOURCE_HSI * @arg @ref LL_RCC_PLLSOURCE_HSE * @retval None */ __STATIC_INLINE void LL_RCC_PLL_SetMainSource(uint32_t PLLSource) { MODIFY_REG(RCC->CFGR, RCC_CFGR_PLLSRC, PLLSource); } /** * @brief Get the oscillator used as PLL clock source. * @rmtoll CFGR PLLSRC LL_RCC_PLL_GetMainSource * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_PLLSOURCE_HSI * @arg @ref LL_RCC_PLLSOURCE_HSE */ __STATIC_INLINE uint32_t LL_RCC_PLL_GetMainSource(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PLLSRC)); } /** * @brief Get PLL multiplication Factor * @rmtoll CFGR PLLMUL LL_RCC_PLL_GetMultiplicator * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_PLL_MUL_3 * @arg @ref LL_RCC_PLL_MUL_4 * @arg @ref LL_RCC_PLL_MUL_6 * @arg @ref LL_RCC_PLL_MUL_8 * @arg @ref LL_RCC_PLL_MUL_12 * @arg @ref LL_RCC_PLL_MUL_16 * @arg @ref LL_RCC_PLL_MUL_24 * @arg @ref LL_RCC_PLL_MUL_32 * @arg @ref LL_RCC_PLL_MUL_48 */ __STATIC_INLINE uint32_t LL_RCC_PLL_GetMultiplicator(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PLLMUL)); } /** * @brief Get Division factor for the main PLL and other PLL * @rmtoll CFGR PLLDIV LL_RCC_PLL_GetDivider * @retval Returned value can be one of the following values: * @arg @ref LL_RCC_PLL_DIV_2 * @arg @ref LL_RCC_PLL_DIV_3 * @arg @ref LL_RCC_PLL_DIV_4 */ __STATIC_INLINE uint32_t LL_RCC_PLL_GetDivider(void) { return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PLLDIV)); } /** * @} */ /** @defgroup RCC_LL_EF_FLAG_Management FLAG Management * @{ */ /** * @brief Clear LSI ready interrupt flag * @rmtoll CIR LSIRDYC LL_RCC_ClearFlag_LSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_LSIRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_LSIRDYC); } /** * @brief Clear LSE ready interrupt flag * @rmtoll CIR LSERDYC LL_RCC_ClearFlag_LSERDY * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_LSERDY(void) { SET_BIT(RCC->CIR, RCC_CIR_LSERDYC); } /** * @brief Clear MSI ready interrupt flag * @rmtoll CIR MSIRDYC LL_RCC_ClearFlag_MSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_MSIRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_MSIRDYC); } /** * @brief Clear HSI ready interrupt flag * @rmtoll CIR HSIRDYC LL_RCC_ClearFlag_HSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_HSIRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_HSIRDYC); } /** * @brief Clear HSE ready interrupt flag * @rmtoll CIR HSERDYC LL_RCC_ClearFlag_HSERDY * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_HSERDY(void) { SET_BIT(RCC->CIR, RCC_CIR_HSERDYC); } /** * @brief Clear PLL ready interrupt flag * @rmtoll CIR PLLRDYC LL_RCC_ClearFlag_PLLRDY * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_PLLRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_PLLRDYC); } /** * @brief Clear Clock security system interrupt flag * @rmtoll CIR CSSC LL_RCC_ClearFlag_HSECSS * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_HSECSS(void) { SET_BIT(RCC->CIR, RCC_CIR_CSSC); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Clear LSE Clock security system interrupt flag * @rmtoll CIR LSECSSC LL_RCC_ClearFlag_LSECSS * @retval None */ __STATIC_INLINE void LL_RCC_ClearFlag_LSECSS(void) { SET_BIT(RCC->CIR, RCC_CIR_LSECSSC); } #endif /* RCC_LSECSS_SUPPORT */ /** * @brief Check if LSI ready interrupt occurred or not * @rmtoll CIR LSIRDYF LL_RCC_IsActiveFlag_LSIRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LSIRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_LSIRDYF) == RCC_CIR_LSIRDYF) ? 1UL : 0UL); } /** * @brief Check if LSE ready interrupt occurred or not * @rmtoll CIR LSERDYF LL_RCC_IsActiveFlag_LSERDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LSERDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_LSERDYF) == RCC_CIR_LSERDYF) ? 1UL : 0UL); } /** * @brief Check if MSI ready interrupt occurred or not * @rmtoll CIR MSIRDYF LL_RCC_IsActiveFlag_MSIRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_MSIRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_MSIRDYF) == RCC_CIR_MSIRDYF) ? 1UL : 0UL); } /** * @brief Check if HSI ready interrupt occurred or not * @rmtoll CIR HSIRDYF LL_RCC_IsActiveFlag_HSIRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSIRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_HSIRDYF) == RCC_CIR_HSIRDYF) ? 1UL : 0UL); } /** * @brief Check if HSE ready interrupt occurred or not * @rmtoll CIR HSERDYF LL_RCC_IsActiveFlag_HSERDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSERDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_HSERDYF) == RCC_CIR_HSERDYF) ? 1UL : 0UL); } /** * @brief Check if PLL ready interrupt occurred or not * @rmtoll CIR PLLRDYF LL_RCC_IsActiveFlag_PLLRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_PLLRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_PLLRDYF) == RCC_CIR_PLLRDYF) ? 1UL : 0UL); } /** * @brief Check if Clock security system interrupt occurred or not * @rmtoll CIR CSSF LL_RCC_IsActiveFlag_HSECSS * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSECSS(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_CSSF) == RCC_CIR_CSSF) ? 1UL : 0UL); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Check if LSE Clock security system interrupt occurred or not * @rmtoll CIR LSECSSF LL_RCC_IsActiveFlag_LSECSS * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LSECSS(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_LSECSSF) == RCC_CIR_LSECSSF) ? 1UL : 0UL); } #endif /* RCC_LSECSS_SUPPORT */ /** * @brief Check if RCC flag Independent Watchdog reset is set or not. * @rmtoll CSR IWDGRSTF LL_RCC_IsActiveFlag_IWDGRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_IWDGRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_IWDGRSTF) == RCC_CSR_IWDGRSTF) ? 1UL : 0UL); } /** * @brief Check if RCC flag Low Power reset is set or not. * @rmtoll CSR LPWRRSTF LL_RCC_IsActiveFlag_LPWRRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LPWRRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_LPWRRSTF) == RCC_CSR_LPWRRSTF) ? 1UL : 0UL); } /** * @brief Check if RCC flag is set or not. * @rmtoll CSR OBLRSTF LL_RCC_IsActiveFlag_OBLRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_OBLRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_OBLRSTF) == RCC_CSR_OBLRSTF) ? 1UL : 0UL); } /** * @brief Check if RCC flag Pin reset is set or not. * @rmtoll CSR PINRSTF LL_RCC_IsActiveFlag_PINRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_PINRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_PINRSTF) == RCC_CSR_PINRSTF) ? 1UL : 0UL); } /** * @brief Check if RCC flag POR/PDR reset is set or not. * @rmtoll CSR PORRSTF LL_RCC_IsActiveFlag_PORRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_PORRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_PORRSTF) == RCC_CSR_PORRSTF) ? 1UL : 0UL); } /** * @brief Check if RCC flag Software reset is set or not. * @rmtoll CSR SFTRSTF LL_RCC_IsActiveFlag_SFTRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_SFTRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_SFTRSTF) == RCC_CSR_SFTRSTF) ? 1UL : 0UL); } /** * @brief Check if RCC flag Window Watchdog reset is set or not. * @rmtoll CSR WWDGRSTF LL_RCC_IsActiveFlag_WWDGRST * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_WWDGRST(void) { return ((READ_BIT(RCC->CSR, RCC_CSR_WWDGRSTF) == RCC_CSR_WWDGRSTF) ? 1UL : 0UL); } /** * @brief Set RMVF bit to clear the reset flags. * @rmtoll CSR RMVF LL_RCC_ClearResetFlags * @retval None */ __STATIC_INLINE void LL_RCC_ClearResetFlags(void) { SET_BIT(RCC->CSR, RCC_CSR_RMVF); } /** * @} */ /** @defgroup RCC_LL_EF_IT_Management IT Management * @{ */ /** * @brief Enable LSI ready interrupt * @rmtoll CIR LSIRDYIE LL_RCC_EnableIT_LSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_LSIRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_LSIRDYIE); } /** * @brief Enable LSE ready interrupt * @rmtoll CIR LSERDYIE LL_RCC_EnableIT_LSERDY * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_LSERDY(void) { SET_BIT(RCC->CIR, RCC_CIR_LSERDYIE); } /** * @brief Enable MSI ready interrupt * @rmtoll CIR MSIRDYIE LL_RCC_EnableIT_MSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_MSIRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_MSIRDYIE); } /** * @brief Enable HSI ready interrupt * @rmtoll CIR HSIRDYIE LL_RCC_EnableIT_HSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_HSIRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_HSIRDYIE); } /** * @brief Enable HSE ready interrupt * @rmtoll CIR HSERDYIE LL_RCC_EnableIT_HSERDY * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_HSERDY(void) { SET_BIT(RCC->CIR, RCC_CIR_HSERDYIE); } /** * @brief Enable PLL ready interrupt * @rmtoll CIR PLLRDYIE LL_RCC_EnableIT_PLLRDY * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_PLLRDY(void) { SET_BIT(RCC->CIR, RCC_CIR_PLLRDYIE); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Enable LSE clock security system interrupt * @rmtoll CIR LSECSSIE LL_RCC_EnableIT_LSECSS * @retval None */ __STATIC_INLINE void LL_RCC_EnableIT_LSECSS(void) { SET_BIT(RCC->CIR, RCC_CIR_LSECSSIE); } #endif /* RCC_LSECSS_SUPPORT */ /** * @brief Disable LSI ready interrupt * @rmtoll CIR LSIRDYIE LL_RCC_DisableIT_LSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_LSIRDY(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_LSIRDYIE); } /** * @brief Disable LSE ready interrupt * @rmtoll CIR LSERDYIE LL_RCC_DisableIT_LSERDY * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_LSERDY(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_LSERDYIE); } /** * @brief Disable MSI ready interrupt * @rmtoll CIR MSIRDYIE LL_RCC_DisableIT_MSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_MSIRDY(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_MSIRDYIE); } /** * @brief Disable HSI ready interrupt * @rmtoll CIR HSIRDYIE LL_RCC_DisableIT_HSIRDY * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_HSIRDY(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_HSIRDYIE); } /** * @brief Disable HSE ready interrupt * @rmtoll CIR HSERDYIE LL_RCC_DisableIT_HSERDY * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_HSERDY(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_HSERDYIE); } /** * @brief Disable PLL ready interrupt * @rmtoll CIR PLLRDYIE LL_RCC_DisableIT_PLLRDY * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_PLLRDY(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_PLLRDYIE); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Disable LSE clock security system interrupt * @rmtoll CIR LSECSSIE LL_RCC_DisableIT_LSECSS * @retval None */ __STATIC_INLINE void LL_RCC_DisableIT_LSECSS(void) { CLEAR_BIT(RCC->CIR, RCC_CIR_LSECSSIE); } #endif /* RCC_LSECSS_SUPPORT */ /** * @brief Checks if LSI ready interrupt source is enabled or disabled. * @rmtoll CIR LSIRDYIE LL_RCC_IsEnabledIT_LSIRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_LSIRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_LSIRDYIE) == RCC_CIR_LSIRDYIE) ? 1UL : 0UL); } /** * @brief Checks if LSE ready interrupt source is enabled or disabled. * @rmtoll CIR LSERDYIE LL_RCC_IsEnabledIT_LSERDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_LSERDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_LSERDYIE) == RCC_CIR_LSERDYIE) ? 1UL : 0UL); } /** * @brief Checks if MSI ready interrupt source is enabled or disabled. * @rmtoll CIR MSIRDYIE LL_RCC_IsEnabledIT_MSIRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_MSIRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_MSIRDYIE) == RCC_CIR_MSIRDYIE) ? 1UL : 0UL); } /** * @brief Checks if HSI ready interrupt source is enabled or disabled. * @rmtoll CIR HSIRDYIE LL_RCC_IsEnabledIT_HSIRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_HSIRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_HSIRDYIE) == RCC_CIR_HSIRDYIE) ? 1UL : 0UL); } /** * @brief Checks if HSE ready interrupt source is enabled or disabled. * @rmtoll CIR HSERDYIE LL_RCC_IsEnabledIT_HSERDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_HSERDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_HSERDYIE) == RCC_CIR_HSERDYIE) ? 1UL : 0UL); } /** * @brief Checks if PLL ready interrupt source is enabled or disabled. * @rmtoll CIR PLLRDYIE LL_RCC_IsEnabledIT_PLLRDY * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_PLLRDY(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_PLLRDYIE) == RCC_CIR_PLLRDYIE) ? 1UL : 0UL); } #if defined(RCC_LSECSS_SUPPORT) /** * @brief Checks if LSECSS interrupt source is enabled or disabled. * @rmtoll CIR LSECSSIE LL_RCC_IsEnabledIT_LSECSS * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_LSECSS(void) { return ((READ_BIT(RCC->CIR, RCC_CIR_LSECSSIE) == RCC_CIR_LSECSSIE) ? 1UL : 0UL); } #endif /* RCC_LSECSS_SUPPORT */ /** * @} */ #if defined(USE_FULL_LL_DRIVER) /** @defgroup RCC_LL_EF_Init De-initialization function * @{ */ ErrorStatus LL_RCC_DeInit(void); /** * @} */ /** @defgroup RCC_LL_EF_Get_Freq Get system and peripherals clocks frequency functions * @{ */ void LL_RCC_GetSystemClocksFreq(LL_RCC_ClocksTypeDef *RCC_Clocks); /** * @} */ #endif /* USE_FULL_LL_DRIVER */ /** * @} */ /** * @} */ #endif /* RCC */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32L1xx_LL_RCC_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/