text: /**
    ******************************************************************************
    * @file    stm32l0xx_hal_rcc.h
    * @author  MCD Application Team
    * @version V1.6.0
    * @date    15-April-2016
    * @brief   Header file of RCC HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2016 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.
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32L0xx_HAL_RCC_H
  #define __STM32L0xx_HAL_RCC_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32l0xx_hal_def.h"
  
  /** @addtogroup STM32L0xx_HAL_Driver
    * @{
    */
  
  /** @defgroup RCC RCC
    * @{
    */
  
  /** @defgroup RCC_Exported_Types RCC Exported Types
    * @{
    */
  
  /**
    * @brief  RCC PLL configuration structure definition
    */
  typedef struct
  {
    uint32_t PLLState;   /*!< The new state of the PLL.
                              This parameter can be a value of @ref RCC_PLL_Config */
  
    uint32_t PLLSource;  /*!< RCC_PLLSource: PLL entry clock source.
                              This parameter must be a value of @ref RCC_PLL_Clock_Source */
  
    uint32_t PLLMUL;       /*!< PLLMUL: Multiplication factor for PLL VCO output clock
                                This parameter must of @ref RCC_PLLMultiplication_Factor */
  
    uint32_t PLLDIV;       /*!< PLLDIV: Division factor for main system clock (SYSCLK)
                              This parameter must be a value of @ref RCC_PLLDivider_Factor */
  
  }RCC_PLLInitTypeDef;
  
  /**
    * @brief  RCC Internal/External Oscillator (HSE, HSI, LSE and LSI) configuration structure definition  
    */
  typedef struct
  {
    uint32_t OscillatorType;       /*!< The oscillators to be configured.
                                        This parameter can be a value of @ref RCC_Oscillator_Type */
  
    uint32_t HSEState;             /*!< The new state of the HSE.
                                        This parameter can be a value of @ref RCC_HSE_Config */
  
    uint32_t LSEState;             /*!< The new state of the LSE.
                                        This parameter can be a value of @ref RCC_LSE_Config */
  
    uint32_t HSIState;             /*!< The new state of the HSI.
                                        This parameter can be a value of @ref RCC_HSI_Config */
  
    uint32_t HSICalibrationValue;  /*!< The calibration trimming value.
                                        This parameter must be a number between Min_Data = 0x00 and Max_Data = 0x1F */
  
    uint32_t LSIState;             /*!< The new state of the LSI.
                                        This parameter can be a value of @ref RCC_LSI_Config */
  
  #if !defined (STM32L031xx) && !defined (STM32L041xx) && !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) && \
      !defined (STM32L011xx) && !defined (STM32L021xx)
    uint32_t HSI48State;             /*!< The new state of the HSI48.
                                        This parameter can be a value of @ref RCC_HSI48_Config */
  #endif
  
    uint32_t MSIState;             /*!< The new state of the MSI.
                                        This parameter can be a value of @ref RCC_MSI_Config */
  
    uint32_t MSICalibrationValue;  /*!< The calibration trimming value.
                                        This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF */
  
    uint32_t MSIClockRange;         /*!< The MSI  frequency  range.
                                        This parameter can be a value of @ref RCC_MSI_Clock_Range  */
  
    RCC_PLLInitTypeDef PLL;        /*!< PLL structure parameters */
  
  }RCC_OscInitTypeDef;
  
  /**
    * @brief  RCC System, AHB and APB busses clock configuration structure definition  
    */
  typedef struct
  {
    uint32_t ClockType;             /*!< The clock to be configured.
                                         This parameter can be a value of @ref RCC_System_Clock_Type */
  
    uint32_t SYSCLKSource;          /*!< The clock source (SYSCLKS) used as system clock.
                                         This parameter can be a value of @ref RCC_System_Clock_Source */
  
    uint32_t AHBCLKDivider;         /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK).
                                         This parameter can be a value of @ref RCC_AHB_Clock_Source */
  
    uint32_t APB1CLKDivider;        /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK).
                                         This parameter can be a value of @ref RCC_APB1_APB2_Clock_Source */
  
    uint32_t APB2CLKDivider;        /*!< The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK).
                                         This parameter can be a value of @ref RCC_APB1_APB2_Clock_Source */
  
  }RCC_ClkInitTypeDef;
  
  /**
    * @}
    */
    
  /* Private constants --------------------------------------------------------*/
  /** @addtogroup RCC_Private
    * @brief RCC registers bit address in the alias region
    * @{
    */
  #define RCC_OFFSET                (RCC_BASE - PERIPH_BASE)
  /* --- CR Register ---*/
  /* Alias word address of HSION bit */
  #define RCC_CR_OFFSET             (RCC_OFFSET + 0x00U)
  /* --- CFGR Register ---*/
  /* Alias word address of I2SSRC bit */
  #define RCC_CFGR_OFFSET           (RCC_OFFSET + 0x08U)
  /* --- CSR Register ---*/
  #define RCC_CSR_OFFSET            (RCC_OFFSET + 0x74U)
  
  /* CR register byte 3 (Bits[23:16]) base address */
  #define RCC_CR_BYTE2_ADDRESS          ((uint32_t)0x40023802U)
  
  /* CIER register byte 0 (Bits[0:8]) base address */
  #define CIER_BYTE0_ADDRESS         ((uint32_t)(RCC_BASE + 0x10U + 0x00U))
  
  /**
    * @}
    */
    
  /* Exported constants --------------------------------------------------------*/
  /** @defgroup RCC_Exported_Constants RCC Exported Constants
    * @{
    */
  
  /** @defgroup RCC_Timeout_Value Timeout Values
    * @{
    */
  #define RCC_DBP_TIMEOUT_VALUE          ((uint32_t)100U)  /* 100 ms */
  #define RCC_LSE_TIMEOUT_VALUE          LSE_STARTUP_TIMEOUT
  #define RCC_HSE_TIMEOUT_VALUE          HSE_STARTUP_TIMEOUT
  /**
    * @}
    */
    
  /** @defgroup RCC_Oscillator_Type Oscillator Type
    * @{
    */
  #define RCC_OSCILLATORTYPE_NONE        ((uint32_t)0x00000000U)   /*!< Oscillator configuration unchanged */
  #define RCC_OSCILLATORTYPE_HSE         ((uint32_t)0x00000001U)   /*!< HSE to configure */
  #define RCC_OSCILLATORTYPE_HSI         ((uint32_t)0x00000002U)   /*!< HSI to configure */
  #define RCC_OSCILLATORTYPE_LSE         ((uint32_t)0x00000004U)   /*!< LSE to configure */
  #define RCC_OSCILLATORTYPE_LSI         ((uint32_t)0x00000008U)   /*!< LSI to configure */
  #define RCC_OSCILLATORTYPE_MSI         ((uint32_t)0x00000010U)   /*!< MSI to configure */
  #if !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx)
  #define RCC_OSCILLATORTYPE_HSI48           ((uint32_t)0x00000020U)
  #endif /* !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) */
  
  /**
    * @}
    */
  
  /** @defgroup RCC_HSE_Config RCC HSE Config
    * @{
    */
  #define RCC_HSE_OFF                     ((uint32_t)0x00000000U)
  #define RCC_HSE_ON                      RCC_CR_HSEON
  #define RCC_HSE_BYPASS                  ((uint32_t)(RCC_CR_HSEBYP | RCC_CR_HSEON))
  
  /**
    * @}
    */
  
  /** @defgroup RCC_LSE_Config RCC LSE Config
    * @{
    */
  #define RCC_LSE_OFF                      ((uint32_t)0x00000000U)
  #define RCC_LSE_ON                       RCC_CSR_LSEON
  #define RCC_LSE_BYPASS                   ((uint32_t)(RCC_CSR_LSEBYP | RCC_CSR_LSEON))
  
  /**
    * @}
    */
  
  
  
  /** @defgroup RCC_LSI_Config RCC LSI Config
    * @{
    */
  #define RCC_LSI_OFF                      ((uint8_t)0x00U)
  #define RCC_LSI_ON                       ((uint8_t)0x01U)
  
  #define RCC_MSICALIBRATION_DEFAULT     ((uint32_t)0)   /* Default MSI calibration trimming value */
  
  /**
    * @}
    */
  
      
  /** @defgroup RCC_MSI_Config RCC MSI Config
    * @{
    */
  #define RCC_MSI_OFF                      ((uint8_t)0x00U)
  #define RCC_MSI_ON                       ((uint8_t)0x01U)
  
  #define RCC_HSICALIBRATION_DEFAULT     ((uint32_t)0x10U)   /* Default HSI calibration trimming value */
  
  /**
    * @}
    */
  
  #if !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx)
  /** @defgroup RCC_HSI48_Config RCC HSI48 Configuration
    * @{
    */
  #define RCC_HSI48_OFF                      ((uint8_t)0x00U)
  #define RCC_HSI48_ON                       ((uint8_t)0x01U)
  
  /**
    * @}
    */
  #endif /* !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) */
  
  /** @defgroup RCC_PLL_Config RCC PLL Config
    * @{
    */
  #define RCC_PLL_NONE                      ((uint8_t)0x00U)
  #define RCC_PLL_OFF                       ((uint8_t)0x01U)
  #define RCC_PLL_ON                        ((uint8_t)0x02U)
  
  /**
    * @}
    */
  
  /** @defgroup RCC_PLL_Clock_Source RCC PLL Clock Source
    * @{
    */
  #define RCC_PLLSOURCE_HSI                RCC_CFGR_PLLSRC_HSI
  #define RCC_PLLSOURCE_HSE                RCC_CFGR_PLLSRC_HSE
  
  
  /**
    * @}
    */
  
  /** @defgroup RCC_PLLMultiplication_Factor RCC PLL Multipliers
    * @{
    */
  
  #define RCC_PLLMUL_3                     RCC_CFGR_PLLMUL3
  #define RCC_PLLMUL_4                     RCC_CFGR_PLLMUL4
  #define RCC_PLLMUL_6                     RCC_CFGR_PLLMUL6
  #define RCC_PLLMUL_8                     RCC_CFGR_PLLMUL8
  #define RCC_PLLMUL_12                    RCC_CFGR_PLLMUL12
  #define RCC_PLLMUL_16                    RCC_CFGR_PLLMUL16
  #define RCC_PLLMUL_24                    RCC_CFGR_PLLMUL24
  #define RCC_PLLMUL_32                    RCC_CFGR_PLLMUL32
  #define RCC_PLLMUL_48                    RCC_CFGR_PLLMUL48
  
  /**
    * @}
    */
  
  /** @defgroup RCC_PLLDivider_Factor RCC PLL Dividers
    * @{
    */
  
  #define RCC_PLLDIV_2                     RCC_CFGR_PLLDIV2
  #define RCC_PLLDIV_3                     RCC_CFGR_PLLDIV3
  #define RCC_PLLDIV_4                     RCC_CFGR_PLLDIV4
  
  /**
    * @}
    */
  
  /** @defgroup RCC_MSI_Clock_Range RCC MSI Clock Range
    * @{
    */
  
  #define RCC_MSIRANGE_0                   RCC_ICSCR_MSIRANGE_0 /*!< MSI = 65.536 KHz  */
  #define RCC_MSIRANGE_1                   RCC_ICSCR_MSIRANGE_1 /*!< MSI = 131.072 KHz */
  #define RCC_MSIRANGE_2                   RCC_ICSCR_MSIRANGE_2 /*!< MSI = 262.144 KHz */
  #define RCC_MSIRANGE_3                   RCC_ICSCR_MSIRANGE_3 /*!< MSI = 524.288 KHz */
  #define RCC_MSIRANGE_4                   RCC_ICSCR_MSIRANGE_4 /*!< MSI = 1.048 MHz   */
  #define RCC_MSIRANGE_5                   RCC_ICSCR_MSIRANGE_5 /*!< MSI = 2.097 MHz   */
  #define RCC_MSIRANGE_6                   RCC_ICSCR_MSIRANGE_6 /*!< MSI = 4.194 MHz   */
  
  
  /**
    * @}
    */
  
  /** @defgroup RCC_System_Clock_Type RCC System Clock Type
    * @{
    */
  #define RCC_CLOCKTYPE_SYSCLK           ((uint32_t)0x00000001U)  /*!< SYSCLK to configure */
  #define RCC_CLOCKTYPE_HCLK             ((uint32_t)0x00000002U)  /*!< HCLK to configure */
  #define RCC_CLOCKTYPE_PCLK1            ((uint32_t)0x00000004U)  /*!< PCLK1 to configure */
  #define RCC_CLOCKTYPE_PCLK2            ((uint32_t)0x00000008U)  /*!< PCLK2 to configure */
  /**
    * @}
    */
  
  /** @defgroup RCC_System_Clock_Source RCC System Clock Source
    * @{
    */
  #define RCC_SYSCLKSOURCE_MSI           RCC_CFGR_SW_MSI    /*!< MSI selection as system clock */
  #define RCC_SYSCLKSOURCE_HSI           RCC_CFGR_SW_HSI    /*!< HSI selection as system clock */
  #define RCC_SYSCLKSOURCE_HSE           RCC_CFGR_SW_HSE    /*!< HSE selection as system clock */
  #define RCC_SYSCLKSOURCE_PLLCLK        RCC_CFGR_SW_PLL    /*!< PLL selection as system clock */
  /**
    * @}
    */
  
  /** @defgroup RCC_System_Clock_SOURCE_Status RCC System Clock Source Status
    * @{
    */
  #define RCC_SYSCLKSOURCE_STATUS_MSI    RCC_CFGR_SWS_MSI   /*!< MSI used as system clock */
  #define RCC_SYSCLKSOURCE_STATUS_HSI    RCC_CFGR_SWS_HSI   /*!< HSI used as system clock */
  #define RCC_SYSCLKSOURCE_STATUS_HSE    RCC_CFGR_SWS_HSE   /*!< HSE used as system clock */
  #define RCC_SYSCLKSOURCE_STATUS_PLLCLK RCC_CFGR_SWS_PLL   /*!< PLL used as system clock */
  /**
    * @}
    */
  
  /** @defgroup RCC_AHB_Clock_Source RCC AHB Clock Source
    * @{
    */
  #define RCC_SYSCLK_DIV1                RCC_CFGR_HPRE_DIV1   /*!< SYSCLK not divided */
  #define RCC_SYSCLK_DIV2                RCC_CFGR_HPRE_DIV2   /*!< SYSCLK divided by 2 */
  #define RCC_SYSCLK_DIV4                RCC_CFGR_HPRE_DIV4   /*!< SYSCLK divided by 4 */
  #define RCC_SYSCLK_DIV8                RCC_CFGR_HPRE_DIV8   /*!< SYSCLK divided by 8 */
  #define RCC_SYSCLK_DIV16               RCC_CFGR_HPRE_DIV16  /*!< SYSCLK divided by 16 */
  #define RCC_SYSCLK_DIV64               RCC_CFGR_HPRE_DIV64  /*!< SYSCLK divided by 64 */
  #define RCC_SYSCLK_DIV128              RCC_CFGR_HPRE_DIV128 /*!< SYSCLK divided by 128 */
  #define RCC_SYSCLK_DIV256              RCC_CFGR_HPRE_DIV256 /*!< SYSCLK divided by 256 */
  #define RCC_SYSCLK_DIV512              RCC_CFGR_HPRE_DIV512 /*!< SYSCLK divided by 512 */
  /**
    * @}
    */
  
  /** @defgroup RCC_APB1_APB2_Clock_Source RCC APB1 APB2 Clock Source
    * @{
    */
  #define RCC_HCLK_DIV1                  RCC_CFGR_PPRE1_DIV1  /*!< HCLK not divided */
  #define RCC_HCLK_DIV2                  RCC_CFGR_PPRE1_DIV2  /*!< HCLK divided by 2 */
  #define RCC_HCLK_DIV4                  RCC_CFGR_PPRE1_DIV4  /*!< HCLK divided by 4 */
  #define RCC_HCLK_DIV8                  RCC_CFGR_PPRE1_DIV8  /*!< HCLK divided by 8 */
  #define RCC_HCLK_DIV16                 RCC_CFGR_PPRE1_DIV16 /*!< HCLK divided by 16 */
  /**
    * @}
    */
  
  /** @defgroup RCC_RTC_Clock_Source RCC RTC Clock Source
    * @{
    */
  #define RCC_RTCCLKSOURCE_NO_CLK          ((uint32_t)0x00000000U)
  #define RCC_RTCCLKSOURCE_LSE             RCC_CSR_RTCSEL_LSE
  #define RCC_RTCCLKSOURCE_LSI             RCC_CSR_RTCSEL_LSI
  #define RCC_RTCCLKSOURCE_HSE_DIVX        RCC_CSR_RTCSEL_HSE
  
  #define RCC_RTCCLKSOURCE_HSE_DIV2        RCC_CSR_RTCSEL_HSE
  #define RCC_RTCCLKSOURCE_HSE_DIV4        ((uint32_t)RCC_CSR_RTCSEL_HSE | RCC_CR_RTCPRE_0)
  #define RCC_RTCCLKSOURCE_HSE_DIV8        ((uint32_t)RCC_CSR_RTCSEL_HSE | RCC_CR_RTCPRE_1)
  #define RCC_RTCCLKSOURCE_HSE_DIV16       ((uint32_t)RCC_CSR_RTCSEL_HSE | RCC_CR_RTCPRE)
  
  #define RCC_RTC_HSE_DIV_2     (uint32_t)0x00000000U  /*!< HSE is divided by 2 for RTC clock */
  #define RCC_RTC_HSE_DIV_4      RCC_CR_RTCPRE_0       /*!< HSE is divided by 4 for RTC clock */
  #define RCC_RTC_HSE_DIV_8      RCC_CR_RTCPRE_1       /*!< HSE is divided by 8 for RTC clock */
  #define RCC_RTC_HSE_DIV_16     RCC_CR_RTCPRE         /*!< HSE is divided by 16 for RTC clock */
  
  /**
    * @}
    */
  
  /** @defgroup RCC_MCO1_Clock_Source RCC MCO1 Clock Source
    * @{
    */
  
  #define RCC_MCO1SOURCE_NOCLOCK            RCC_CFGR_MCO_NOCLOCK
  #define RCC_MCO1SOURCE_SYSCLK             RCC_CFGR_MCO_SYSCLK
  #define RCC_MCO1SOURCE_HSI                RCC_CFGR_MCO_HSI
  #define RCC_MCO1SOURCE_MSI                RCC_CFGR_MCO_MSI
  #define RCC_MCO1SOURCE_HSE                RCC_CFGR_MCO_HSE
  #define RCC_MCO1SOURCE_PLLCLK             RCC_CFGR_MCO_PLL
  #define RCC_MCO1SOURCE_LSI                RCC_CFGR_MCO_LSI
  #define RCC_MCO1SOURCE_LSE                RCC_CFGR_MCO_LSE
  #if  !defined (STM32L031xx) && !defined (STM32L041xx) && !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) \
        && !defined (STM32L011xx) && !defined (STM32L021xx)
  #define RCC_MCO1SOURCE_HSI48              RCC_CFGR_MCO_HSI48
  #endif
                                      
                                        
  /**
    * @}
    */
  
  /** @defgroup RCC_MCOPrescaler RCC MCO Prescaler
    * @{
    */
  
  #define RCC_MCODIV_1            RCC_CFGR_MCO_PRE_1
  #define RCC_MCODIV_2            RCC_CFGR_MCO_PRE_2
  #define RCC_MCODIV_4            RCC_CFGR_MCO_PRE_4
  #define RCC_MCODIV_8            RCC_CFGR_MCO_PRE_8
  #define RCC_MCODIV_16           RCC_CFGR_MCO_PRE_16
  
  /**
    * @}
    */  
  
  /** @defgroup RCC_MCO_Index RCC MCO Index
    * @{
    */
  #define RCC_MCO1                         ((uint32_t)0x00000000U)
  #define RCC_MCO2                         ((uint32_t)0x00000001U)
  #if  defined(STM32L031xx) || defined(STM32L041xx) || defined(STM32L073xx) || defined(STM32L083xx) || \
       defined(STM32L072xx) || defined(STM32L082xx) || defined(STM32L071xx) || defined(STM32L081xx) 
  #define RCC_MCO3                         ((uint32_t)0x00000002U)
  #endif
  
  /**
    * @}
    */
  
  /** @defgroup RCC_Interrupt RCC Interruptions
    * @{
    */
  #define RCC_IT_LSIRDY                    RCC_CIFR_LSIRDYF
  #define RCC_IT_LSERDY                    RCC_CIFR_LSERDYF
  #define RCC_IT_HSIRDY                    RCC_CIFR_HSIRDYF
  #define RCC_IT_HSERDY                    RCC_CIFR_HSERDYF
  #define RCC_IT_PLLRDY                    RCC_CIFR_PLLRDYF
  #define RCC_IT_MSIRDY                    RCC_CIFR_MSIRDYF
  
  #define RCC_IT_CSSLSE                    RCC_CIFR_CSSLSEF
  #define RCC_IT_CSSHSE                    RCC_CIFR_CSSHSEF
  
  #if !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx)
  #define RCC_IT_HSI48RDY                  RCC_CIFR_HSI48RDYF                                 
  #endif /* !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) */
  /**
    * @}
    */
  
  /** @defgroup RCC_Flag RCC Flag
    *        Elements values convention: 0XXYYYYYb
    *           - YYYYY  : Flag position in the register
    *           - 0XX  : Register index
    *                 - 01: CR register
    *                 - 10: CSR register
    *                 - 11: CRRCR register
    * @{
    */
  /* Flags in the CR register */
  #define RCC_FLAG_HSIRDY                  ((uint8_t)0x22U)
  #define RCC_FLAG_HSIDIV                  ((uint8_t)0x24U)
  #define RCC_FLAG_MSIRDY                  ((uint8_t)0x29U)
  #define RCC_FLAG_HSERDY                  ((uint8_t)0x31U)
  #define RCC_FLAG_PLLRDY                  ((uint8_t)0x39U)
  
  /* Flags in the CSR register */
  #define RCC_FLAG_LSERDY                  ((uint8_t)0x49U)
  #define RCC_FLAG_LSECSS                  ((uint8_t)0x4EU)
  #define RCC_FLAG_LSIRDY                  ((uint8_t)0x41U)
  #define RCC_FLAG_FWRST                   ((uint8_t)0x58U)
  #define RCC_FLAG_OBLRST                  ((uint8_t)0x59U)
  #define RCC_FLAG_PINRST                  ((uint8_t)0x5AU)
  #define RCC_FLAG_PORRST                  ((uint8_t)0x5BU)
  #define RCC_FLAG_SFTRST                  ((uint8_t)0x5CU)
  #define RCC_FLAG_IWDGRST                 ((uint8_t)0x5DU)
  #define RCC_FLAG_WWDGRST                 ((uint8_t)0x5EU)
  #define RCC_FLAG_LPWRRST                 ((uint8_t)0x5FU)
  
  #if !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx)
  /* Flags in the CRRCR register */
  #define RCC_FLAG_HSI48RDY                ((uint8_t)0x61U)
  #endif /* !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) */
  
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */   
  /* Exported macro ------------------------------------------------------------*/
  /** @defgroup RCC_Exported_Macros RCC Exported Macros
   * @{
   */
   
  /** @defgroup RCC_AHB_Peripheral_Clock_Enable_Disable AHB Peripheral Clock Enable Disable
    * @brief  Enable or disable the AHB peripheral clock.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before 
    *         using it.
    * @{
    */
  #define __HAL_RCC_DMA1_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->AHBENR, RCC_AHBENR_DMA1EN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_DMA1EN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
                                        
  #define __HAL_RCC_MIF_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->AHBENR, RCC_AHBENR_MIFEN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_MIFEN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
                                        
  #define __HAL_RCC_CRC_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->AHBENR, RCC_AHBENR_CRCEN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_CRCEN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
  
  
  #define __HAL_RCC_DMA1_CLK_DISABLE()          CLEAR_BIT(RCC->AHBENR, RCC_AHBENR_DMA1EN)
  #define __HAL_RCC_MIF_CLK_DISABLE()           CLEAR_BIT(RCC->AHBENR, RCC_AHBENR_MIFEN)
  #define __HAL_RCC_CRC_CLK_DISABLE()           CLEAR_BIT(RCC->AHBENR, RCC_AHBENR_CRCEN)
  
  /**
    * @}
    */
  
  /** @defgroup RCC_IOPORT_Clock_Enable_Disable IOPORT Peripheral Clock Enable Disable
    * @brief  Enable or disable the IOPORT peripheral clock.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before 
    *         using it.
    * @{
    */
  #define __HAL_RCC_GPIOA_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->IOPENR, RCC_IOPENR_GPIOAEN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOAEN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
                                        
  #define __HAL_RCC_GPIOB_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->IOPENR, RCC_IOPENR_GPIOBEN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOBEN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
                                        
  #define __HAL_RCC_GPIOC_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->IOPENR, RCC_IOPENR_GPIOCEN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOCEN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
  
  #define __HAL_RCC_GPIOH_CLK_ENABLE()   do { \
                                          __IO uint32_t tmpreg; \
                                          SET_BIT(RCC->IOPENR, RCC_IOPENR_GPIOHEN);\
                                          /* Delay after an RCC peripheral clock enabling */ \
                                          tmpreg = READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOHEN);\
                                          UNUSED(tmpreg); \
                                        } while(0)
  
  
  #define __HAL_RCC_GPIOA_CLK_DISABLE()        CLEAR_BIT(RCC->IOPENR, RCC_IOPENR_GPIOAEN)
  #define __HAL_RCC_GPIOB_CLK_DISABLE()        CLEAR_BIT(RCC->IOPENR, RCC_IOPENR_GPIOBEN)
  #define __HAL_RCC_GPIOC_CLK_DISABLE()        CLEAR_BIT(RCC->IOPENR, RCC_IOPENR_GPIOCEN)
  #define __HAL_RCC_GPIOH_CLK_DISABLE()        CLEAR_BIT(RCC->IOPENR, RCC_IOPENR_GPIOHEN)
  
  /**
    * @}
    */
  
  /** @defgroup RCC_APB1_Clock_Enable_Disable APB1 Peripheral Clock Enable Disable
    * @brief  Enable or disable the Low Speed APB (APB1) peripheral clock.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before
    *         using it.
    * @{
    */
  #define __HAL_RCC_WWDG_CLK_ENABLE()    SET_BIT(RCC->APB1ENR, (RCC_APB1ENR_WWDGEN))
  #define __HAL_RCC_PWR_CLK_ENABLE()     SET_BIT(RCC->APB1ENR, (RCC_APB1ENR_PWREN))
  
  #define __HAL_RCC_WWDG_CLK_DISABLE()    CLEAR_BIT(RCC->APB1ENR, (RCC_APB1ENR_WWDGEN))
  #define __HAL_RCC_PWR_CLK_DISABLE()     CLEAR_BIT(RCC->APB1ENR, (RCC_APB1ENR_PWREN))
  /**
    * @}
    */
  
  /** @defgroup RCC_APB2_Clock_Enable_Disable APB2 Peripheral Clock Enable Disable 
    * @brief  Enable or disable the High Speed APB (APB2) peripheral clock.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before 
    *         using it.
    * @{
    */
  #define __HAL_RCC_SYSCFG_CLK_ENABLE()   SET_BIT(RCC->APB2ENR, (RCC_APB2ENR_SYSCFGEN))
  #define __HAL_RCC_DBGMCU_CLK_ENABLE()   SET_BIT(RCC->APB2ENR, (RCC_APB2ENR_DBGMCUEN))
  
  #define __HAL_RCC_SYSCFG_CLK_DISABLE()   CLEAR_BIT(RCC->APB2ENR, (RCC_APB2ENR_SYSCFGEN))
  #define __HAL_RCC_DBGMCU_CLK_DISABLE()   CLEAR_BIT(RCC->APB2ENR, (RCC_APB2ENR_DBGMCUEN))
  /**
    * @}
    */
    
  /** @defgroup RCC_AHB_Peripheral_Clock_Enable_Disable_Status AHB Peripheral Clock Enabled or Disabled Status
    * @brief  Check whether the AHB peripheral clock is enabled or not.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before
    *         using it.
    * @{
    */
  
  #define __HAL_RCC_DMA1_IS_CLK_ENABLED()        (READ_BIT(RCC->AHBENR, RCC_AHBENR_DMA1EN) != RESET)
  #define __HAL_RCC_MIF_IS_CLK_ENABLED()         (READ_BIT(RCC->AHBENR, RCC_AHBENR_MIFEN) != RESET)
  #define __HAL_RCC_CRC_IS_CLK_ENABLED()         (READ_BIT(RCC->AHBENR, RCC_AHBENR_CRCEN) != RESET)
  
  /**
    * @}
    */
    
  /** @defgroup RCC_IOPORT_Peripheral_Clock_Enable_Disable_Status IOPORT Peripheral Clock Enabled or Disabled Status
    * @brief  Check whether the IOPORT peripheral clock is enabled or not.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before
    *         using it.
    * @{
    */
  
  #define __HAL_RCC_GPIOA_IS_CLK_ENABLED()        (READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOAEN) != RESET)
  #define __HAL_RCC_GPIOB_IS_CLK_ENABLED()        (READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOBEN) != RESET)
  #define __HAL_RCC_GPIOC_IS_CLK_ENABLED()        (READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOCEN) != RESET)
  #define __HAL_RCC_GPIOH_IS_CLK_ENABLED()        (READ_BIT(RCC->IOPENR, RCC_IOPENR_GPIOHEN) != RESET)
  
  /**
    * @}
    */
    
  /** @defgroup RCC_APB1_Clock_Enable_Disable_Status APB1 Peripheral Clock Enabled or Disabled Status
    * @brief  Check whether the APB1 peripheral clock is enabled or not.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before
    *         using it.
    * @{
    */
  #define __HAL_RCC_WWDG_IS_CLK_ENABLED()        (READ_BIT(RCC->APB1ENR, RCC_APB1ENR_WWDGEN) != RESET)
  #define __HAL_RCC_PWR_IS_CLK_ENABLED()         (READ_BIT(RCC->APB1ENR, RCC_APB1ENR_PWREN) != RESET)
  
  /**
    * @}
    */
    
  /** @defgroup RCC_APB2_Clock_Enable_Disable_Status APB2 Peripheral Clock Enabled or Disabled Status
    * @brief  Check whether the APB2 peripheral clock is enabled or not.
    * @note   After reset, the peripheral clock (used for registers read/write access)
    *         is disabled and the application software has to enable this clock before
    *         using it.
    * @{
    */
  #define __HAL_RCC_SYSCFG_IS_CLK_ENABLED()        (READ_BIT(RCC->APB2ENR, RCC_APB2ENR_SYSCFGEN) != RESET)
  #define __HAL_RCC_DBGMCU_IS_CLK_ENABLED()        (READ_BIT(RCC->APB2ENR, RCC_APB2ENR_DBGMCUEN) != RESET)
  
  /**
    * @}
    */
    
   /** @defgroup RCC_AHB_Force_Release_Reset AHB Peripheral Force Release Reset 
    * @brief  Force or release AHB peripheral reset.
    * @{
    */
  #define __HAL_RCC_AHB_FORCE_RESET()     (RCC->AHBRSTR = 0xFFFFFFFFU)
  #define __HAL_RCC_DMA1_FORCE_RESET()    SET_BIT(RCC->AHBRSTR, (RCC_AHBRSTR_DMA1RST))
  #define __HAL_RCC_MIF_FORCE_RESET()     SET_BIT(RCC->AHBRSTR, (RCC_AHBRSTR_MIFRST))
  #define __HAL_RCC_CRC_FORCE_RESET()     SET_BIT(RCC->AHBRSTR, (RCC_AHBRSTR_CRCRST))
  
  #define __HAL_RCC_AHB_RELEASE_RESET()     (RCC->AHBRSTR = 0x00U)
  #define __HAL_RCC_CRC_RELEASE_RESET()     CLEAR_BIT(RCC->AHBRSTR, (RCC_AHBRSTR_CRCRST))
  #define __HAL_RCC_DMA1_RELEASE_RESET()    CLEAR_BIT(RCC->AHBRSTR, (RCC_AHBRSTR_DMA1RST))
  #define __HAL_RCC_MIF_RELEASE_RESET()     CLEAR_BIT(RCC->AHBRSTR, (RCC_AHBRSTR_MIFRST))
  /**
    * @}
    */
    
  /** @defgroup RCC_IOPORT_Force_Release_Reset IOPORT Peripheral Force Release Reset 
    * @brief  Force or release IOPORT peripheral reset.
    * @{
    */
  #define __HAL_RCC_IOP_FORCE_RESET()     (RCC->IOPRSTR = 0xFFFFFFFFU) 
  #define __HAL_RCC_GPIOA_FORCE_RESET()   SET_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOARST))
  #define __HAL_RCC_GPIOB_FORCE_RESET()   SET_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOBRST))
  #define __HAL_RCC_GPIOC_FORCE_RESET()   SET_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOCRST))
  #define __HAL_RCC_GPIOH_FORCE_RESET()   SET_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOHRST))
  
  #define __HAL_RCC_IOP_RELEASE_RESET()   (RCC->IOPRSTR = 0x00U) 
  #define __HAL_RCC_GPIOA_RELEASE_RESET() CLEAR_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOARST))
  #define __HAL_RCC_GPIOB_RELEASE_RESET() CLEAR_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOBRST))
  #define __HAL_RCC_GPIOC_RELEASE_RESET() CLEAR_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOCRST))
  #define __HAL_RCC_GPIOH_RELEASE_RESET() CLEAR_BIT(RCC->IOPRSTR, (RCC_IOPRSTR_GPIOHRST))
  
  /**
    * @}
    */
    
  /** @defgroup RCC_APB1_Force_Release_Reset APB1 Peripheral Force Release Reset 
    * @brief  Force or release APB1 peripheral reset.
    * @{
    */
  #define __HAL_RCC_APB1_FORCE_RESET()     (RCC->APB1RSTR = 0xFFFFFFFFU)  
  #define __HAL_RCC_WWDG_FORCE_RESET()     SET_BIT(RCC->APB1RSTR, (RCC_APB1RSTR_WWDGRST))
  #define __HAL_RCC_PWR_FORCE_RESET()      SET_BIT(RCC->APB1RSTR, (RCC_APB1RSTR_PWRRST))
  
  #define __HAL_RCC_APB1_RELEASE_RESET()   (RCC->APB1RSTR = 0x00U)
  #define __HAL_RCC_WWDG_RELEASE_RESET()   CLEAR_BIT(RCC->APB1RSTR, (RCC_APB1RSTR_WWDGRST))
  #define __HAL_RCC_PWR_RELEASE_RESET()    CLEAR_BIT(RCC->APB1RSTR, (RCC_APB1RSTR_PWRRST))
  
  /**
    * @}
    */
    
  /** @defgroup RCC_APB2_Force_Release_Reset APB2 Peripheral Force Release Reset 
    * @brief  Force or release APB2 peripheral reset.
    * @{
    */
  #define __HAL_RCC_APB2_FORCE_RESET()     (RCC->APB2RSTR = 0xFFFFFFFFU)  
  #define __HAL_RCC_DBGMCU_FORCE_RESET()   SET_BIT(RCC->APB2RSTR, (RCC_APB2RSTR_DBGMCURST))
  #define __HAL_RCC_SYSCFG_FORCE_RESET()   SET_BIT(RCC->APB2RSTR, (RCC_APB2RSTR_SYSCFGRST))
  
  #define __HAL_RCC_APB2_RELEASE_RESET()   (RCC->APB2RSTR = 0x00U)
  #define __HAL_RCC_DBGMCU_RELEASE_RESET() CLEAR_BIT(RCC->APB2RSTR, (RCC_APB2RSTR_DBGMCURST))
  #define __HAL_RCC_SYSCFG_RELEASE_RESET() CLEAR_BIT(RCC->APB2RSTR, (RCC_APB2RSTR_SYSCFGRST))
  /**
    * @}
    */
    
  
  /** @defgroup RCC_AHB_Clock_Sleep_Enable_Disable AHB Peripheral Clock Sleep Enable Disable
    * @brief  Enable or disable the AHB peripheral clock during Low Power (Sleep) mode.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral activated clocks remain enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_CRC_CLK_SLEEP_ENABLE()      SET_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_CRCSMEN))
  #define __HAL_RCC_MIF_CLK_SLEEP_ENABLE()      SET_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_MIFSMEN))
  #define __HAL_RCC_SRAM_CLK_SLEEP_ENABLE()     SET_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_SRAMSMEN))
  #define __HAL_RCC_DMA1_CLK_SLEEP_ENABLE()     SET_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_DMA1SMEN))
  
  #define __HAL_RCC_CRC_CLK_SLEEP_DISABLE()     CLEAR_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_CRCSMEN))
  #define __HAL_RCC_MIF_CLK_SLEEP_DISABLE()     CLEAR_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_MIFSMEN))
  #define __HAL_RCC_SRAM_CLK_SLEEP_DISABLE()    CLEAR_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_SRAMSMEN))
  #define __HAL_RCC_DMA1_CLK_SLEEP_DISABLE()    CLEAR_BIT(RCC->AHBSMENR, (RCC_AHBSMENR_DMA1SMEN))
  /**
    * @}
    */
  
  /** @defgroup RCC_IOPORT_Clock_Sleep_Enable_Disable IOPORT Peripheral Clock Sleep Enable Disable 
    * @brief  Enable or disable the IOPORT peripheral clock during Low Power (Sleep) mode.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral activated clocks remain enabled during SLEEP mode.
    * @{
    */
  
  #define __HAL_RCC_GPIOA_CLK_SLEEP_ENABLE()    SET_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOASMEN))
  #define __HAL_RCC_GPIOB_CLK_SLEEP_ENABLE()    SET_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOBSMEN))
  #define __HAL_RCC_GPIOC_CLK_SLEEP_ENABLE()    SET_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOCSMEN))
  #define __HAL_RCC_GPIOH_CLK_SLEEP_ENABLE()    SET_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOHSMEN))
  
  #define __HAL_RCC_GPIOA_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOASMEN))
  #define __HAL_RCC_GPIOB_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOBSMEN))
  #define __HAL_RCC_GPIOC_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOCSMEN))
  #define __HAL_RCC_GPIOH_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->IOPSMENR, (RCC_IOPSMENR_GPIOHSMEN))
  /**
    * @}
    */
    
  /** @defgroup RCC_APB1_Clock_Sleep_Enable_Disable APB1 Peripheral Clock Sleep Enable Disable   
    * @brief  Enable or disable the APB1 peripheral clock during Low Power (Sleep) mode.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral activated clocks remain enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_WWDG_CLK_SLEEP_ENABLE()    SET_BIT(RCC->APB1SMENR, (RCC_APB1SMENR_WWDGSMEN))
  #define __HAL_RCC_PWR_CLK_SLEEP_ENABLE()     SET_BIT(RCC->APB1SMENR, (RCC_APB1SMENR_PWRSMEN))
  
  #define __HAL_RCC_WWDG_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->APB1SMENR,  (RCC_APB1SMENR_WWDGSMEN))
  #define __HAL_RCC_PWR_CLK_SLEEP_DISABLE()    CLEAR_BIT(RCC->APB1SMENR,  (RCC_APB1SMENR_PWRSMEN))
  
  /**
    * @}
    */
    
  /** @defgroup RCC_APB2_Clock_Sleep_Enable_Disable APB2 Peripheral Clock Sleep Enable Disable     
    * @brief  Enable or disable the APB2 peripheral clock during Low Power (Sleep) mode.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral activated clocks remain enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_SYSCFG_CLK_SLEEP_ENABLE()   SET_BIT(RCC->APB2SMENR, (RCC_APB2SMENR_SYSCFGSMEN))
  #define __HAL_RCC_DBGMCU_CLK_SLEEP_ENABLE()   SET_BIT(RCC->APB2SMENR, (RCC_APB2SMENR_DBGMCUSMEN))
  
  #define __HAL_RCC_SYSCFG_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->APB2SMENR,   (RCC_APB2SMENR_SYSCFGSMEN))
  #define __HAL_RCC_DBGMCU_CLK_SLEEP_DISABLE()   CLEAR_BIT(RCC->APB2SMENR,   (RCC_APB2SMENR_DBGMCUSMEN))
  
  /**
    * @}
    */
    
  /** @defgroup RCC_AHB_Clock_Sleep_Enable_Disable_Status AHB Peripheral Clock Sleep Enabled or Disabled Status
    * @brief  Check whether the AHB peripheral clock during Low Power (Sleep) mode is enabled or not.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral clocks are enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_CRC_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->AHBSMENR, RCC_AHBSMENR_CRCSMEN) != RESET)
  #define __HAL_RCC_MIF_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->AHBSMENR, RCC_AHBSMENR_MIFSMEN) != RESET)
  #define __HAL_RCC_SRAM_IS_CLK_SLEEP_ENABLED()   (READ_BIT(RCC->AHBSMENR, RCC_AHBSMENR_SRAMSMEN) != RESET)
  #define __HAL_RCC_DMA1_IS_CLK_SLEEP_ENABLED()   (READ_BIT(RCC->AHBSMENR, RCC_AHBSMENR_DMA1SMEN) != RESET)
  
  /**
    * @}
    */
    
  /** @defgroup RCC_IOPORT_Clock_Sleep_Enable_Disable_Status IOPORT Peripheral Clock Sleep Enabled or Disabled Status
    * @brief  Check whether the IOPORT peripheral clock during Low Power (Sleep) mode is enabled or not.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral clocks are enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_GPIOA_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->IOPSMENR, RCC_IOPSMENR_GPIOASMEN) != RESET)
  #define __HAL_RCC_GPIOB_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->IOPSMENR, RCC_IOPSMENR_GPIOBSMEN) != RESET)
  #define __HAL_RCC_GPIOC_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->IOPSMENR, RCC_IOPSMENR_GPIOCSMEN) != RESET)
  #define __HAL_RCC_GPIOH_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->IOPSMENR, RCC_IOPSMENR_GPIOHSMEN) != RESET)
  
  /**
    * @}
    */
  
  /** @defgroup RCC_APB1_Clock_Sleep_Enable_Disable_Status APB1 Peripheral Clock Sleep Enabled or Disabled Status
    * @brief  Check whether the APB1 peripheral clock during Low Power (Sleep) mode is enabled or not.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral clocks are enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_WWDG_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->APB1SMENR, RCC_APB1SMENR_WWDGSMEN) != RESET)
  #define __HAL_RCC_PWR_IS_CLK_SLEEP_ENABLED()     (READ_BIT(RCC->APB1SMENR, RCC_APB1SMENR_PWRSMEN) != RESET)
  
  /**
    * @}
    */
    
  /** @defgroup RCC_APB2_Clock_Sleep_Enable_Disable_Status APB2 Peripheral Clock Sleep Enabled or Disabled Status
    * @brief  Check whether the APB2 peripheral clock during Low Power (Sleep) mode is enabled or not.
    * @note   Peripheral clock gating in SLEEP mode can be used to further reduce
    *         power consumption.
    * @note   After wakeup from SLEEP mode, the peripheral clock is enabled again.
    * @note   By default, all peripheral clocks are enabled during SLEEP mode.
    * @{
    */
  #define __HAL_RCC_SYSCFG_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->APB2SMENR, RCC_APB2SMENR_SYSCFGSMEN) != RESET)
  #define __HAL_RCC_DBGMCU_IS_CLK_SLEEP_ENABLED()    (READ_BIT(RCC->APB2SMENR, RCC_APB2SMENR_DBGMCUSMEN) != RESET)
  
  /**
    * @}
    */
                                          
  /** @defgroup RCC_Backup_Domain_Reset RCC Backup Domain Reset
    * @{   
    */ 
    
  /** @brief  Macros to force or release the Backup domain reset.
    * @note   This function resets the RTC peripheral (including the backup registers)
    *         and the RTC clock source selection in RCC_CSR register.
    * @note   The BKPSRAM is not affected by this reset.   
    */
  #define __HAL_RCC_BACKUPRESET_FORCE()   SET_BIT(RCC->CSR, RCC_CSR_RTCRST) 
  #define __HAL_RCC_BACKUPRESET_RELEASE() CLEAR_BIT(RCC->CSR, RCC_CSR_RTCRST) 
  
  /**
    * @}
    */
  
  /** @defgroup RCC_RTC_Clock_Configuration RCC RTC Clock Configuration
    * @{   
    */ 
    
  /** @brief  Macros to enable or disable the the RTC clock.
    * @note   These macros must be used only after the RTC clock source was selected.
    */
  #define __HAL_RCC_RTC_ENABLE()  SET_BIT(RCC->CSR, RCC_CSR_RTCEN)
  #define __HAL_RCC_RTC_DISABLE() CLEAR_BIT(RCC->CSR, RCC_CSR_RTCEN)
  
  /**
    * @}
    */
    
  /** @brief  Macros to enable or disable the Internal High Speed oscillator (HSI).
    * @note   The HSI is stopped by hardware when entering STOP and STANDBY modes.
    *         It is used (enabled by hardware) as system clock source after startup
    *         from Reset, wakeup from STOP and STANDBY mode, or in case of failure
    *         of the HSE used directly or indirectly as system clock (if the Clock
    *         Security System CSS is enabled).
    * @note   HSI can not be stopped if it is used as system clock source. In this case,
    *         you have to select another source of the system clock then stop the HSI.  
    * @note   After enabling the HSI, the application software should wait on HSIRDY
    *         flag to be set indicating that HSI clock is stable and can be used as
    *         system clock source.
    * @note   When the HSI is stopped, HSIRDY flag goes low after 6 HSI oscillator
    *         clock cycles.  
    */
  #define __HAL_RCC_HSI_ENABLE()  SET_BIT(RCC->CR, RCC_CR_HSION)
  #define __HAL_RCC_HSI_DISABLE() CLEAR_BIT(RCC->CR, RCC_CR_HSION)
  
  /** @brief  Macro to adjust the Internal High Speed oscillator (HSI) calibration value.
    * @note   The calibration is used to compensate for the variations in voltage
    *         and temperature that influence the frequency of the internal HSI RC.
    * @param  __HSICalibrationValue__: specifies the calibration trimming value.
    *         This parameter must be a number between 0 and 0x1F.
    */
  #define __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(__HSICalibrationValue__) (MODIFY_REG(RCC->ICSCR,\
          RCC_ICSCR_HSITRIM, (uint32_t)(__HSICalibrationValue__) << 8U))
    
  /** @brief  Macro to enable or disable the Internal High Speed oscillator (HSI).
    * @note     After enabling the HSI, the application software should wait on 
    *           HSIRDY flag to be set indicating that HSI clock is stable and can
    *           be used to clock the PLL and/or system clock.
    * @note     HSI can not be stopped if it is used directly or through the PLL
    *           as system clock. In this case, you have to select another source 
    *           of the system clock then stop the HSI.
    * @note     The HSI is stopped by hardware when entering STOP and STANDBY modes. 
    * @param    __STATE__: specifies the new state of the HSI.
    *           This parameter can be one of the following values:
    *            @arg RCC_HSI_OFF: turn OFF the HSI oscillator
    *            @arg RCC_HSI_ON: turn ON the HSI oscillator
    *            @arg RCC_HSI_DIV4: turn ON the HSI oscillator and divide it by 4
    * @note   When the HSI is stopped, HSIRDY flag goes low after 6 HSI oscillator
    *         clock cycles. 
    */
  #define __HAL_RCC_HSI_CONFIG(__STATE__) \
          MODIFY_REG(RCC->CR, RCC_CR_HSION | RCC_CR_HSIDIVEN , (uint32_t)(__STATE__))
          
  /**
    * @brief  Macros to enable or disable the Internal Multi Speed oscillator (MSI).
    * @note     The MSI is stopped by hardware when entering STOP and STANDBY modes.
    *           It is used (enabled by hardware) as system clock source after
    *           startup from Reset, wakeup from STOP and STANDBY mode, or in case
    *           of failure of the HSE used directly or indirectly as system clock
    *           (if the Clock Security System CSS is enabled).
    * @note     MSI can not be stopped if it is used as system clock source.
    *           In this case, you have to select another source of the system
    *           clock then stop the MSI.
    * @note     After enabling the MSI, the application software should wait on
    *           MSIRDY flag to be set indicating that MSI clock is stable and can
    *           be used as system clock source.
    * @note   When the MSI is stopped, MSIRDY flag goes low after 6 MSI oscillator
    *         clock cycles.
    */
  #define __HAL_RCC_MSI_ENABLE()  SET_BIT(RCC->CR, RCC_CR_MSION)
  #define __HAL_RCC_MSI_DISABLE() CLEAR_BIT(RCC->CR, RCC_CR_MSION)
  
  
  /** @brief  Macro Adjusts the Internal Multi Speed oscillator (MSI) calibration value.
    * @note   The calibration is used to compensate for the variations in voltage
    *         and temperature that influence the frequency of the internal MSI RC.
    *         Refer to the Application Note AN3300 for more details on how to  
    *         calibrate the MSI.
    * @param  __MSICalibrationValue__: specifies the calibration trimming value.
    *         This parameter must be a number between 0 and 0xFF.
    */
  #define __HAL_RCC_MSI_CALIBRATIONVALUE_ADJUST(__MSICalibrationValue__) (MODIFY_REG(RCC->ICSCR,\
          RCC_ICSCR_MSITRIM, (uint32_t)(__MSICalibrationValue__) << 24U))
  
  /**
    * @brief  Macro to configures the Internal Multi Speed oscillator (MSI) clock range.
    * @note     After restart from Reset or wakeup from STANDBY, the MSI clock is 
    *           around 2.097 MHz. The MSI clock does not change after wake-up from
    *           STOP mode.
    * @note    The MSI clock range can be modified on the fly.
    * @param  __RCC_MSIRange__: specifies the MSI Clock range.
    *   This parameter must be one of the following values:
    *     @arg RCC_MSIRANGE_0: MSI clock is around 65.536 KHz
    *     @arg RCC_MSIRANGE_1: MSI clock is around 131.072 KHz
    *     @arg RCC_MSIRANGE_2: MSI clock is around 262.144 KHz
    *     @arg RCC_MSIRANGE_3: MSI clock is around 524.288 KHz
    *     @arg RCC_MSIRANGE_4: MSI clock is around 1.048 MHz
    *     @arg RCC_MSIRANGE_5: MSI clock is around 2.097 MHz (default after Reset or wake-up from STANDBY)
    *     @arg RCC_MSIRANGE_6: MSI clock is around 4.194 MHz
    */
  #define __HAL_RCC_MSI_RANGE_CONFIG(__RCC_MSIRange__) (MODIFY_REG(RCC->ICSCR,\
          RCC_ICSCR_MSIRANGE, (uint32_t)(__RCC_MSIRange__) ))
  		
  /** @brief  Macro to get the Internal Multi Speed oscillator (__MSI__) clock range in run mode
    * @retval MSI clock range.
    *         This parameter must be one of the following values:
    *     @arg RCC_MSIRANGE_0: MSI clock is around 65.536 KHz
    *     @arg RCC_MSIRANGE_1: MSI clock is around 131.072 KHz
    *     @arg RCC_MSIRANGE_2: MSI clock is around 262.144 KHz
    *     @arg RCC_MSIRANGE_3: MSI clock is around 524.288 KHz
    *     @arg RCC_MSIRANGE_4: MSI clock is around 1.048 MHz
    *     @arg RCC_MSIRANGE_5: MSI clock is around 2.097 MHz (default after Reset or wake-up from STANDBY)
    *     @arg RCC_MSIRANGE_6: MSI clock is around 4.194 MHz
  
    */
  #define __HAL_RCC_GET_MSI_RANGE()                                              \
                    ((uint32_t)(READ_BIT(RCC->ICSCR, RCC_ICSCR_MSIRANGE) >> 12U))
  
  /** @brief  Macros to enable or disable the Internal Low Speed oscillator (LSI).
    * @note   After enabling the LSI, the application software should wait on 
    *         LSIRDY flag to be set indicating that LSI clock is stable and can
    *         be used to clock the IWDG and/or the RTC.
    * @note   LSI can not be disabled if the IWDG is running.
    * @note   When the LSI is stopped, LSIRDY flag goes low after 6 LSI oscillator
    *         clock cycles. 
    */
  #define __HAL_RCC_LSI_ENABLE()  SET_BIT(RCC->CSR, RCC_CSR_LSION)
  #define __HAL_RCC_LSI_DISABLE() CLEAR_BIT(RCC->CSR, RCC_CSR_LSION)
  
  /**
    * @brief  Macro to configure the External High Speed oscillator (HSE).
    * @note   Transition HSE Bypass to HSE On and HSE On to HSE Bypass are not
    *         supported by this macro. User should request a transition to HSE Off
    *         first and then HSE On or HSE Bypass.
    * @note   After enabling the HSE (RCC_HSE_ON or RCC_HSE_Bypass), the application
    *         software should wait on HSERDY flag to be set indicating that HSE clock
    *         is stable and can be used to clock the PLL and/or system clock.
    * @note   HSE state can not be changed if it is used directly or through the
    *         PLL as system clock. In this case, you have to select another source
    *         of the system clock then change the HSE state (ex. disable it).
    * @note   The HSE is stopped by hardware when entering STOP and STANDBY modes.  
    * @note   This function reset the CSSON bit, so if the clock security system(CSS)
    *         was previously enabled you have to enable it again after calling this
    *         function.    
    * @param  __STATE__: specifies the new state of the HSE.
    *         This parameter can be one of the following values:
    *            @arg RCC_HSE_OFF: turn OFF the HSE oscillator, HSERDY flag goes low after
    *                              6 HSE oscillator clock cycles.
    *            @arg RCC_HSE_ON: turn ON the HSE oscillator.
    *            @arg RCC_HSE_BYPASS: HSE oscillator bypassed with external clock.
    */
  #define __HAL_RCC_HSE_CONFIG(__STATE__) \
                      do {                                     \
                        __IO uint32_t tmpreg; \
                        if((__STATE__) == RCC_HSE_ON)          \
                        {                                      \
                          SET_BIT(RCC->CR, RCC_CR_HSEON);      \
                        }                                      \
                        else if((__STATE__) == RCC_HSE_BYPASS) \
                        {                                      \
                          CLEAR_BIT(RCC->CR, RCC_CR_HSEON);    \
                          SET_BIT(RCC->CR, RCC_CR_HSEBYP);     \
                          SET_BIT(RCC->CR, RCC_CR_HSEON);      \
                        }                                      \
                        else                                   \
                        {                                      \
                          CLEAR_BIT(RCC->CR, RCC_CR_HSEON);    \
                          /* Delay after an RCC peripheral clock */ \
                          tmpreg = READ_BIT(RCC->CR, RCC_CR_HSEON);      \
                          UNUSED(tmpreg);                                    \
                          CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP);   \
                        }                                      \
                      } while(0)
  
  /**
    * @brief  Macro to configure the External Low Speed oscillator (LSE).
    * @note   Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not
    *         supported by this macro. User should request a transition to LSE Off 
    *         first and then LSE On or LSE Bypass.  
    * @note   As the LSE is in the Backup domain and write access is denied to
    *         this domain after reset, you have to enable write access using
    *         HAL_PWR_EnableBkUpAccess() function before to configure the LSE
    *         (to be done once after reset).
    * @note   After enabling the LSE (RCC_LSE_ON or RCC_LSE_BYPASS), the application
    *         software should wait on LSERDY flag to be set indicating that LSE clock
    *         is stable and can be used to clock the RTC.
    * @param  __STATE__: specifies the new state of the LSE.
    *         This parameter can be one of the following values:
    *            @arg RCC_LSE_OFF: turn OFF the LSE oscillator, LSERDY flag goes low after
    *                              6 LSE oscillator clock cycles.
    *            @arg RCC_LSE_ON: turn ON the LSE oscillator.
    *            @arg RCC_LSE_BYPASS: LSE oscillator bypassed with external clock.
    */
  #define __HAL_RCC_LSE_CONFIG(__STATE__)                        \
                      do {                                       \
                        if((__STATE__) == RCC_LSE_ON)            \
                        {                                        \
                          SET_BIT(RCC->CSR, RCC_CSR_LSEON);      \
                        }                                        \
                        else if((__STATE__) == RCC_LSE_OFF)      \
                        {                                        \
                          CLEAR_BIT(RCC->CSR, RCC_CSR_LSEON);    \
  						CLEAR_BIT(RCC->CSR, RCC_CSR_LSEBYP);   \
                        }                                        \
                        else if((__STATE__) == RCC_LSE_BYPASS)   \
                        {                                        \
                          CLEAR_BIT(RCC->CSR, RCC_CSR_LSEON);    \
                          SET_BIT(RCC->CSR, RCC_CSR_LSEBYP);     \
                          SET_BIT(RCC->CSR, RCC_CSR_LSEON);      \
                        }                                        \
                        else                                     \
                        {                                        \
                          CLEAR_BIT(RCC->CSR, RCC_CSR_LSEON);    \
                          CLEAR_BIT(RCC->CSR, RCC_CSR_LSEBYP);   \
                        }                                        \
                      } while(0)
  
  
  
  /**
    * @brief  Configures  or  Get the RTC and LCD clock (RTCCLK / LCDCLK).
    * @note     As the RTC clock configuration bits are in the RTC domain and write
    *           access is denied to this domain after reset, you have to enable write
    *           access using PWR_RTCAccessCmd(ENABLE) function before to configure
    *           the RTC clock source (to be done once after reset).    
    * @note     Once the RTC clock is configured it cannot be changed unless the RTC
    *           is reset using RCC_RTCResetCmd function, or by a Power On Reset (POR)
    * @note     The RTC clock (RTCCLK) is used also to clock the LCD (LCDCLK).
    *
    * @param  __RTCCLKSOURCE__: specifies the RTC clock source.
    *   This parameter can be one of the following values:
    *     @arg RCC_RTCCLKSOURCE_LSE: LSE selected as RTC clock
    *     @arg RCC_RTCCLKSOURCE_LSI: LSI selected as RTC clock
    *     @arg RCC_RTCCLKSOURCE_HSE_DIV2: HSE divided by 2 selected as RTC clock
    *     @arg RCC_RTCCLKSOURCE_HSE_DIV4: HSE divided by 4 selected as RTC clock
    *     @arg RCC_RTCCLKSOURCE_HSE_DIV8: HSE divided by 8 selected as RTC clock
    *     @arg RCC_RTCCLKSOURCE_HSE_DIV16: HSE divided by 16 selected as RTC clock
    *
    * @note     If the LSE or LSI is used as RTC clock source, the RTC continues to
    *           work in STOP and STANDBY modes, and can be used as wakeup source.
    *           However, when the HSE clock is used as RTC clock source, the RTC
    *           cannot be used in STOP and STANDBY modes.          
    * @note     The maximum input clock frequency for RTC is 1MHz (when using HSE as
    *           RTC clock source).
    */
                        
  #define __HAL_RCC_RTC_CLKPRESCALER(__RTCCLKSOURCE__) (((__RTCCLKSOURCE__) & RCC_CSR_RTCSEL) == RCC_CSR_RTCSEL) ?    \
                                                        MODIFY_REG(RCC->CR, RCC_CR_RTCPRE, (uint32_t)((__RTCCLKSOURCE__) & RCC_CR_RTCPRE)) : \
                                                        CLEAR_BIT(RCC->CR, RCC_CR_RTCPRE)
  
  #define __HAL_RCC_RTC_CONFIG(__RTCCLKSOURCE__) do { __HAL_RCC_RTC_CLKPRESCALER(__RTCCLKSOURCE__);    \
                                                      MODIFY_REG( RCC->CSR, RCC_CSR_RTCSEL, (uint32_t)((__RTCCLKSOURCE__) & RCC_CSR_RTCSEL));  \
                                                     } while (0)
  
  
   /**
    * @brief    Get the RTC and LCD clock (RTCCLK / LCDCLK).
    *
    * @retval The clock source can be one of the following values:
    *            @arg RCC_RTCCLKSOURCE_NO_CLK: No clock selected as RTC clock
    *            @arg RCC_RTCCLKSOURCE_LSE: LSE selected as RTC clock
    *            @arg RCC_RTCCLKSOURCE_LSI: LSI selected as RTC clock
    *            @arg RCC_RTCCLKSOURCE_HSE_DIVX: HSE divided by X selected as RTC clock (X can be retrieved thanks to @ref __HAL_RCC_GET_RTC_HSE_PRESCALER()
    *
    */                                                    
  #define  __HAL_RCC_GET_RTC_SOURCE() ((uint32_t)(READ_BIT(RCC->CSR, RCC_CSR_RTCSEL)))
      
    /**
    * @brief   Get the RTC and LCD HSE clock divider (RTCCLK / LCDCLK).
    *
    * @retval Returned value can be one of the following values:
    *         @arg RCC_RTC_HSE_DIV_2: HSE divided by 2 selected as RTC clock
    *         @arg RCC_RTC_HSE_DIV_4: HSE divided by 4 selected as RTC clock
    *         @arg RCC_RTC_HSE_DIV_8: HSE divided by 8 selected as RTC clock
    *         @arg RCC_RTC_HSE_DIV_16: HSE divided by 16 selected as RTC clock
    *
    */
  #define  __HAL_RCC_GET_RTC_HSE_PRESCALER() ((uint32_t)(READ_BIT(RCC->CR, RCC_CR_RTCPRE)))                                                   
  
                                                       
  /** @brief  Macros to enable or disable the main PLL.
    * @note   After enabling the main PLL, the application software should wait on 
    *         PLLRDY flag to be set indicating that PLL clock is stable and can
    *         be used as system clock source.
    * @note   The main PLL can not be disabled if it is used as system clock source
    * @note   The main PLL is disabled by hardware when entering STOP and STANDBY modes.
    */
  #define __HAL_RCC_PLL_ENABLE()  SET_BIT(RCC->CR, RCC_CR_PLLON)
  #define __HAL_RCC_PLL_DISABLE() CLEAR_BIT(RCC->CR, RCC_CR_PLLON)
  
  /** @brief  Macro to configure the main PLL clock source, multiplication and division factors.
    * @note   This function must be used only when the main PLL is disabled.
    * @param  __RCC_PLLSOURCE__: specifies the PLL entry clock source.
    *         This parameter can be one of the following values:
    *            @arg RCC_PLLSOURCE_HSI: HSI oscillator clock selected as PLL clock entry
    *            @arg RCC_PLLSOURCE_HSE: HSE oscillator clock selected as PLL clock entry
    * @param  __PLLMUL__: specifies the multiplication factor to generate the PLL VCO clock
    *         This parameter must be one of the following values:
    *            @arg RCC_CFGR_PLLMUL3: PLLVCO = PLL clock entry x 3
    *            @arg RCC_CFGR_PLLMUL4: PLLVCO = PLL clock entry x 4
    *            @arg RCC_CFGR_PLLMUL6: PLLVCO = PLL clock entry x 6
    *            @arg RCC_CFGR_PLLMUL8: PLLVCO = PLL clock entry x 8
    *            @arg RCC_CFGR_PLLMUL12: PLLVCO = PLL clock entry x 12
    *            @arg RCC_CFGR_PLLMUL16: PLLVCO = PLL clock entry x 16
    *            @arg RCC_CFGR_PLLMUL24: PLLVCO = PLL clock entry x 24  
    *            @arg RCC_CFGR_PLLMUL32: PLLVCO = PLL clock entry x 32
    *            @arg RCC_CFGR_PLLMUL48: PLLVCO = PLL clock entry x 48
    * @note   The PLL VCO clock frequency must not exceed 96 MHz when the product is in
    *         Range 1, 48 MHz when the product is in Range 2 and 24 MHz when the product is
    *         in Range 3.
    * @param  __PLLDIV__: specifies the PLL output clock division from PLL VCO clock
    *         This parameter must be one of the following values:
    *            @arg RCC_PLLDIV_2: PLL clock output = PLLVCO / 2
    *            @arg RCC_PLLDIV_3: PLL clock output = PLLVCO / 3
    *            @arg RCC_PLLDIV_4: PLL clock output = PLLVCO / 4
    */
  
  #define __HAL_RCC_PLL_CONFIG(__RCC_PLLSOURCE__ , __PLLMUL__ ,__PLLDIV__ ) \
              MODIFY_REG(RCC->CFGR, RCC_CFGR_PLLMUL | RCC_CFGR_PLLDIV | RCC_CFGR_PLLSRC, (uint32_t)((__PLLMUL__)| (__PLLDIV__)| (__RCC_PLLSOURCE__)))
  
              /** @brief  Macro to get the oscillator used as PLL clock source.
    * @retval The oscillator used as PLL clock source. The returned value can be one
    *         of the following:
    *              - RCC_PLLSOURCE_HSI: HSI oscillator is used as PLL clock source.
    *              - RCC_PLLSOURCE_HSE: HSE oscillator is used as PLL clock source.
    */
  #define __HAL_RCC_GET_PLL_OSCSOURCE() ((uint32_t)(RCC->CFGR & RCC_CFGR_PLLSRC))
  
  /**
    * @brief  Macro to configure the system clock source.
    * @param  __SYSCLKSOURCE__: specifies the system clock source.
    *          This parameter can be one of the following values:
    *              - RCC_SYSCLKSOURCE_MSI: MSI oscillator is used as system clock source.
    *              - RCC_SYSCLKSOURCE_HSI: HSI oscillator is used as system clock source.
    *              - RCC_SYSCLKSOURCE_HSE: HSE oscillator is used as system clock source.
    *              - RCC_SYSCLKSOURCE_PLLCLK: PLL output is used as system clock source.
    * @retval None
    */
  #define __HAL_RCC_SYSCLK_CONFIG(__SYSCLKSOURCE__) \
                    MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, (__SYSCLKSOURCE__))
  
  /** @brief  Macro to get the clock source used as system clock.
    * @retval The clock source used as system clock. The returned value can be one
    *         of the following:
    *              - RCC_SYSCLKSOURCE_STATUS_MSI: MSI used as system clock.
    *              - RCC_SYSCLKSOURCE_STATUS_HSI: HSI used as system clock.
    *              - RCC_SYSCLKSOURCE_STATUS_HSE: HSE used as system clock.
    *              - RCC_SYSCLKSOURCE_STATUS_PLLCLK: PLL used as system clock.
    */
  #define __HAL_RCC_GET_SYSCLK_SOURCE() ((uint32_t)(RCC->CFGR & RCC_CFGR_SWS))
  
  
  /** @brief  Macro to configure the MCO clock.
    * @param  __MCOCLKSOURCE__ specifies the MCO clock source.
    *          This parameter can be one of the following values:
    *            @arg RCC_CFGR_MCO_HSI: HSI clock selected as MCO source
    *            @arg RCC_CFGR_MCO_MSI: MSI clock selected as MCO source
    *            @arg RCC_CFGR_MCO_HSE: HSE clock selected as MCO source
    *            @arg RCC_CFGR_MCO_PLL: PLL clock selected as MCO source
    *            @arg RCC_CFGR_MCO_LSI: LSI clock selected as MCO source
    *            @arg RCC_CFGR_MCO_LSE: LSE clock selected as MCO source
    * @param  __MCODIV__ specifies the MCO clock prescaler.
    *          This parameter can be one of the following values:
    *            @arg RCC_CFGR_MCO_PRE_1: no division applied to MCO clock
    *            @arg RCC_CFGR_MCO_PRE_2: division by 2 applied to MCO clock
    *            @arg RCC_CFGR_MCO_PRE_4: division by 4 applied to MCO clock
    *            @arg RCC_CFGR_MCO_PRE_8: division by 8 applied to MCO clock
    *            @arg RCC_CFGR_MCO_PRE_16: division by 16 applied to MCO clock
    */
  
  #define __HAL_RCC_MCO1_CONFIG(__MCOCLKSOURCE__, __MCODIV__) \
                   MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCOSEL | RCC_CFGR_MCO_PRE), ((__MCOCLKSOURCE__) | (__MCODIV__)))
  
  
  /** @defgroup RCC_Flags_Interrupts_Management RCC Flags Interrupts Management
    * @brief macros to manage the specified RCC Flags and interrupts.
    * @{
    */
  
  /** @brief  Enable RCC interrupt (Perform Byte access to RCC_CIER[0:7] bits to enable
    *         the selected interrupts).
    * @note   The CSS interrupt doesn't have an enable bit; once the CSS is enabled
    *         and if the HSE clock fails, the CSS interrupt occurs and an NMI is
    *         automatically generated. The NMI will be executed indefinitely, and 
    *         since NMI has higher priority than any other IRQ (and main program)
    *         the application will be stacked in the NMI ISR unless the CSS interrupt
    *         pending bit is cleared.            
    * @param  __INTERRUPT__: specifies the RCC interrupt sources to be enabled.
    *         This parameter can be any combination of the following values:
    *     @arg RCC_IT_LSIRDY: LSI ready interrupt
    *     @arg RCC_IT_LSERDY: LSE ready interrupt
    *     @arg RCC_IT_HSIRDY: HSI ready interrupt
    *     @arg RCC_IT_HSERDY: HSE ready interrupt
    *     @arg RCC_IT_PLLRDY: PLL ready interrupt
    *     @arg RCC_IT_MSIRDY: MSI ready interrupt
    *     @arg RCC_IT_CSSLSE: LSE CSS interrupt
    *     @arg RCC_IT_HSI48RDY: HSI48 ready interrupt   
    */
  #define __HAL_RCC_ENABLE_IT(__INTERRUPT__) SET_BIT(RCC->CIER, (__INTERRUPT__))
  
  /** @brief Disable RCC interrupt (Perform Byte access to RCC_CIER[0:7] bits to disable 
    *        the selected interrupts).
    * @note   The CSS interrupt doesn't have an enable bit; once the CSS is enabled
    *         and if the HSE clock fails, the CSS interrupt occurs and an NMI is
    *         automatically generated. The NMI will be executed indefinitely, and 
    *         since NMI has higher priority than any other IRQ (and main program)
    *         the application will be stacked in the NMI ISR unless the CSS interrupt
    *         pending bit is cleared.
    * @param  __INTERRUPT__: specifies the RCC interrupt sources to be disabled.
    *         This parameter can be any combination of the following values:
    *     @arg RCC_IT_LSIRDY: LSI ready interrupt
    *     @arg RCC_IT_LSERDY: LSE ready interrupt
    *     @arg RCC_IT_HSIRDY: HSI ready interrupt
    *     @arg RCC_IT_HSERDY: HSE ready interrupt
    *     @arg RCC_IT_PLLRDY: PLL ready interrupt
    *     @arg RCC_IT_MSIRDY: MSI ready interrupt
    *     @arg RCC_IT_HSI48RDY: HSI48 ready interrupt   
    *     @arg RCC_IT_CSSLSE: LSE CSS interrupt
  
    */
  #define __HAL_RCC_DISABLE_IT(__INTERRUPT__) CLEAR_BIT(RCC->CIER, (__INTERRUPT__))
  
  /** @brief  Clear the RCC's interrupt pending bits (Perform Byte access to RCC_CIR[23:16]
    *         bits to clear the selected interrupt pending bits.
    * @param  __INTERRUPT__: specifies the interrupt pending bit to clear.
    *         This parameter can be any combination of the following values:
    *     @arg RCC_IT_LSIRDY: LSI ready interrupt
    *     @arg RCC_IT_LSERDY: LSE ready interrupt
    *     @arg RCC_IT_HSIRDY: HSI ready interrupt
    *     @arg RCC_IT_HSERDY: HSE ready interrupt
    *     @arg RCC_IT_PLLRDY: PLL ready interrupt
    *     @arg RCC_IT_MSIRDY: MSI ready interrupt
    *     @arg RCC_IT_HSI48RDY: HSI48 ready interrupt   
    *     @arg RCC_IT_CSSLSE: LSE CSS interrupt
    *     @arg RCC_IT_CSSHSE: Clock Security System interrupt
    */
   #define __HAL_RCC_CLEAR_IT(__INTERRUPT__) (RCC->CICR = (__INTERRUPT__))
  
  /** @brief  Check the RCC's interrupt has occurred or not.
    * @param  __INTERRUPT__: specifies the RCC interrupt source to check.
    *         This parameter can be one of the following values:
    *     @arg RCC_IT_LSIRDY: LSI ready interrupt
    *     @arg RCC_IT_LSERDY: LSE ready interrupt  
    *     @arg RCC_IT_HSIRDY: HSI ready interrupt
    *     @arg RCC_IT_HSERDY: HSE ready interrupt
    *     @arg RCC_IT_PLLRDY: PLL ready interrupt
    *     @arg RCC_IT_MSIRDY: MSI ready interrupt
    *     @arg RCC_IT_CSSLSE: LSE CSS interrupt
    *     @arg RCC_IT_CSSHSE: Clock Security System interrupt
    * @retval The new state of __INTERRUPT__ (TRUE or FALSE).
    */
  #define __HAL_RCC_GET_IT(__INTERRUPT__) ((RCC->CIFR & (__INTERRUPT__)) == (__INTERRUPT__))
  
  
  /** @brief Set RMVF bit to clear the reset flags.
    *         The reset flags are: RCC_FLAG_OBLRST, RCC_FLAG_PINRST, RCC_FLAG_PORRST, 
    *         RCC_FLAG_SFTRST, RCC_FLAG_IWDGRST, RCC_FLAG_WWDGRST, RCC_FLAG_LPWRRST.
    */
  #define __HAL_RCC_CLEAR_RESET_FLAGS() (RCC->CSR |= RCC_CSR_RMVF)
  
  /** @brief  Check RCC flag is set or not.
    * @param  __FLAG__: specifies the flag to check.
    *         This parameter can be one of the following values:
    *     @arg RCC_FLAG_HSIRDY: HSI oscillator clock ready
    *     @arg RCC_FLAG_HSIDIV: HSI clock divider flag                  
    *     @arg RCC_FLAG_MSIRDY: MSI oscillator clock ready  
    *     @arg RCC_FLAG_HSERDY: HSE oscillator clock ready
    *     @arg RCC_FLAG_PLLRDY: PLL clock ready
    *     @arg RCC_FLAG_LSECSS: LSE oscillator clock CSS detected  
    *     @arg RCC_FLAG_LSERDY: LSE oscillator clock ready
    *     @arg RCC_FLAG_LSIRDY: LSI oscillator clock ready
    *     @arg RCC_FLAG_FWRST: Firewall reset
    *     @arg RCC_FLAG_OBLRST: Option Byte Loader (OBL) reset 
    *     @arg RCC_FLAG_PINRST: Pin reset
    *     @arg RCC_FLAG_PORRST: POR/PDR reset
    *     @arg RCC_FLAG_SFTRST: Software reset
    *     @arg RCC_FLAG_IWDGRST: Independent Watchdog reset
    *     @arg RCC_FLAG_WWDGRST: Window Watchdog reset
    *     @arg RCC_FLAG_LPWRRST: Low Power reset
    * @retval The new state of __FLAG__ (TRUE or FALSE).
    */
  #define __HAL_RCC_GET_FLAG(__FLAG__) (((((((__FLAG__) >> 5U) == 1U)? RCC->CR :((((__FLAG__) >> 5U) == 2U) ? RCC->CSR :((((__FLAG__) >> 5U) == 3U)? \
                RCC->CRRCR :RCC->CIFR))) & ((uint32_t)1U << ((__FLAG__) & RCC_FLAG_MASK))) != 0U ) ? 1U : 0U )  
  
  /**
    * @}
    */
  
  /**
   * @}
   */
  
    
  /* Private constants ---------------------------------------------------------*/
  /** @defgroup RCC_Private_Constants RCC Private Constants
    * @{
    */
  /* Defines used for Flags */
  #define RCC_FLAG_MASK  ((uint8_t)0x1FU)
  
  /**
    * @}
    */
  
  /* Private macros ------------------------------------------------------------*/
  /** @addtogroup RCC_Private_Macros
    * @{
    */
  
  #if !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx)
  #define IS_RCC_OSCILLATORTYPE(__OSCILLATOR__) ((__OSCILLATOR__) <= 0x3FU)
  #else 
  #define IS_RCC_OSCILLATORTYPE(__OSCILLATOR__) ((__OSCILLATOR__) <= 0x1FU)
  #endif /* !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) */
  
  #define IS_RCC_HSE(__HSE__) (((__HSE__) == RCC_HSE_OFF) || ((__HSE__) == RCC_HSE_ON) || \
                               ((__HSE__) == RCC_HSE_BYPASS))
  #define IS_RCC_LSE(__LSE__) (((__LSE__) == RCC_LSE_OFF) || ((__LSE__) == RCC_LSE_ON) || \
                               ((__LSE__) == RCC_LSE_BYPASS))
  
  #define IS_RCC_MSI_CLOCK_RANGE(__RANGE__) (((__RANGE__) == RCC_MSIRANGE_0) || \
                                            ((__RANGE__) == RCC_MSIRANGE_1) || \
                                            ((__RANGE__) == RCC_MSIRANGE_2) || \
                                            ((__RANGE__) == RCC_MSIRANGE_3) || \
                                            ((__RANGE__) == RCC_MSIRANGE_4) || \
                                            ((__RANGE__) == RCC_MSIRANGE_5) || \
                                            ((__RANGE__) == RCC_MSIRANGE_6))
  
  #define IS_RCC_LSI(__LSI__) (((__LSI__) == RCC_LSI_OFF) || ((__LSI__) == RCC_LSI_ON))
  #define IS_RCC_MSI(__MSI__) (((__MSI__) == RCC_MSI_OFF) || ((__MSI__) == RCC_MSI_ON))
  #define IS_RCC_HSI48(__HSI48__) (((__HSI48__) == RCC_HSI48_OFF) || ((__HSI48__) == RCC_HSI48_ON))
  
  #define IS_RCC_PLL(__PLL__) (((__PLL__) == RCC_PLL_NONE) ||((__PLL__) == RCC_PLL_OFF) || ((__PLL__) == RCC_PLL_ON))
  
  #define IS_RCC_PLLSOURCE(__SOURCE__) (((__SOURCE__) == RCC_PLLSOURCE_HSI) || \
                                        ((__SOURCE__) == RCC_PLLSOURCE_HSE))
                                        
  #define IS_RCC_PLL_MUL(__MUL__) (((__MUL__) == RCC_PLLMUL_3) || ((__MUL__) == RCC_PLLMUL_4) || \
                                   ((__MUL__) == RCC_PLLMUL_6) || ((__MUL__) == RCC_PLLMUL_8) || \
                                   ((__MUL__) == RCC_PLLMUL_12) || ((__MUL__) == RCC_PLLMUL_16) || \
                                   ((__MUL__) == RCC_PLLMUL_24) || ((__MUL__) == RCC_PLLMUL_32) || \
                                   ((__MUL__) == RCC_PLLMUL_48))
  
  #define IS_RCC_PLL_DIV(__DIV__) (((__DIV__) == RCC_PLLDIV_2) || ((__DIV__) == RCC_PLLDIV_3) || \
                                   ((__DIV__) == RCC_PLLDIV_4))
                                   
  #define IS_RCC_CLOCKTYPE(__CLK__) ((1U <= (__CLK__)) && ((__CLK__) <= 15U))
  
  #define IS_RCC_SYSCLKSOURCE(__SOURCE__) (((__SOURCE__) == RCC_SYSCLKSOURCE_HSI) || \
                                           ((__SOURCE__) == RCC_SYSCLKSOURCE_HSE) || \
                                           ((__SOURCE__) == RCC_SYSCLKSOURCE_MSI) || \
                                           ((__SOURCE__) == RCC_SYSCLKSOURCE_PLLCLK))
  
  #define IS_RCC_HCLK(__HCLK__) (((__HCLK__) == RCC_SYSCLK_DIV1)   || ((__HCLK__) == RCC_SYSCLK_DIV2)   || \
                                 ((__HCLK__) == RCC_SYSCLK_DIV4)   || ((__HCLK__) == RCC_SYSCLK_DIV8)   || \
                                 ((__HCLK__) == RCC_SYSCLK_DIV16)  || ((__HCLK__) == RCC_SYSCLK_DIV64)  || \
                                 ((__HCLK__) == RCC_SYSCLK_DIV128) || ((__HCLK__) == RCC_SYSCLK_DIV256) || \
                                 ((__HCLK__) == RCC_SYSCLK_DIV512))
  
  #define IS_RCC_PCLK(__PCLK__) (((__PCLK__) == RCC_HCLK_DIV1) || ((__PCLK__) == RCC_HCLK_DIV2) || \
                                 ((__PCLK__) == RCC_HCLK_DIV4) || ((__PCLK__) == RCC_HCLK_DIV8) || \
                                 ((__PCLK__) == RCC_HCLK_DIV16))
  
  #define IS_RCC_RTCCLKSOURCE(__SOURCE__) (((__SOURCE__) == RCC_RTCCLKSOURCE_LSE) || \
                                            ((__SOURCE__) == RCC_RTCCLKSOURCE_LSI) || \
                                            ((__SOURCE__) == RCC_RTCCLKSOURCE_HSE_DIV2) || \
                                            ((__SOURCE__) == RCC_RTCCLKSOURCE_HSE_DIV4) || \
                                            ((__SOURCE__) == RCC_RTCCLKSOURCE_HSE_DIV8) || \
                                            ((__SOURCE__) == RCC_RTCCLKSOURCE_HSE_DIV16))
                                          
  #if  !defined (STM32L031xx) && !defined (STM32L041xx) && !defined(STM32L051xx) && !defined(STM32L061xx) && !defined(STM32L071xx)  && !defined(STM32L081xx) \
       && !defined (STM32L011xx) && !defined (STM32L021xx)
  #define IS_RCC_MCO1SOURCE(__SOURCE__) (((__SOURCE__) == RCC_MCO1SOURCE_NOCLOCK) || ((__SOURCE__) == RCC_MCO1SOURCE_SYSCLK) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_HSI)  || ((__SOURCE__) == RCC_MCO1SOURCE_MSI) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_HSE)  || ((__SOURCE__) == RCC_MCO1SOURCE_PLLCLK) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_LSI) || ((__SOURCE__) == RCC_MCO1SOURCE_LSE) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_HSI48))
  #else
  #define IS_RCC_MCO1SOURCE(__SOURCE__) (((__SOURCE__) == RCC_MCO1SOURCE_NOCLOCK) || ((__SOURCE__) == RCC_MCO1SOURCE_SYSCLK) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_HSI)  || ((__SOURCE__) == RCC_MCO1SOURCE_MSI) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_HSE)  || ((__SOURCE__) == RCC_MCO1SOURCE_PLLCLK) || \
                                        ((__SOURCE__) == RCC_MCO1SOURCE_LSI) || ((__SOURCE__) == RCC_MCO1SOURCE_LSE))
  #endif  
  
  #define IS_RCC_MCODIV(__DIV__) (((__DIV__) == RCC_MCODIV_1)  || \
                                  ((__DIV__) == RCC_MCODIV_2)  || \
                                  ((__DIV__) == RCC_MCODIV_4)  || \
                                  ((__DIV__) == RCC_MCODIV_8)  || \
                                  ((__DIV__) == RCC_MCODIV_16))
  
  #if  defined(STM32L031xx) || defined(STM32L041xx) || defined(STM32L073xx) || defined(STM32L083xx) || \
       defined(STM32L072xx) || defined(STM32L082xx) || defined(STM32L071xx) || defined(STM32L081xx) 
  #define IS_RCC_MCO(__MCOx__) (((__MCOx__) == RCC_MCO1) || ((__MCOx__) == RCC_MCO2) || ((__MCOx__) == RCC_MCO3))
  #else
  #define IS_RCC_MCO(__MCOx__) (((__MCOx__) == RCC_MCO1) || ((__MCOx__) == RCC_MCO2))
  
  #endif
  
  #define IS_RCC_CALIBRATION_VALUE(__VALUE__) ((__VALUE__) <= 0x1F)
  #define IS_RCC_MSICALIBRATION_VALUE(__VALUE__) ((__VALUE__) <= 0xFF)
                                            
  /**
    * @}
    */
  
  /* Include RCC HAL Extension module */
  #include "stm32l0xx_hal_rcc_ex.h"
  
  /** @defgroup RCC_Exported_Functions RCC Exported Functions
    * @{
    */
  
  /** @defgroup RCC_Exported_Functions_Group1 Initialization and de-initialization functions
    * @{
    */
  void HAL_RCC_DeInit(void);
  HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct);
  HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency);
  /**
    * @}
    */
  
  /** @defgroup RCC_Exported_Functions_Group2 Peripheral Control functions
    * @{
    */
  void     HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv);
  #if !defined (STM32L011xx) && !defined (STM32L021xx)
  void     HAL_RCC_EnableCSS(void);
  #endif
  uint32_t HAL_RCC_GetSysClockFreq(void);
  uint32_t HAL_RCC_GetHCLKFreq(void);
  uint32_t HAL_RCC_GetPCLK1Freq(void);
  uint32_t HAL_RCC_GetPCLK2Freq(void);
  void     HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct);
  void     HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency);
  /* CSS NMI IRQ handler */
  void HAL_RCC_NMI_IRQHandler(void);
  
  /* User Callbacks in non blocking mode (IT mode) */ 
  void HAL_RCC_CSSCallback(void);
  /**
    * @}
    */
    
  /**
    * @}
    */ 
  
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM32l0xx_HAL_RCC_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  
  