stm32h735/stm32h735g-dk/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_rcc.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_hal.h"
 
#ifdef HAL_RCC_MODULE_ENABLED
 
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
#define MCO1_CLK_ENABLE()     __HAL_RCC_GPIOA_CLK_ENABLE()
#define MCO1_GPIO_PORT        GPIOA
#define MCO1_PIN              GPIO_PIN_8
 
#define MCO2_CLK_ENABLE()      __HAL_RCC_GPIOC_CLK_ENABLE()
#define MCO2_GPIO_PORT         GPIOC
#define MCO2_PIN               GPIO_PIN_9
 
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
 
HAL_StatusTypeDef HAL_RCC_DeInit(void)
{
  uint32_t tickstart;
 
        /* Increasing the CPU frequency */
  if(FLASH_LATENCY_DEFAULT  > __HAL_FLASH_GET_LATENCY())
  {
    /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
    __HAL_FLASH_SET_LATENCY(FLASH_LATENCY_DEFAULT);
 
    /* Check that the new number of wait states is taken into account to access the Flash
    memory by reading the FLASH_ACR register */
    if(__HAL_FLASH_GET_LATENCY() != FLASH_LATENCY_DEFAULT)
    {
      return HAL_ERROR;
    }
 
  }
 
 
  /* Get Start Tick */
  tickstart = HAL_GetTick();
 
  /* Set HSION bit */
  SET_BIT(RCC->CR, RCC_CR_HSION);
 
  /* Wait till HSI is ready */
  while (READ_BIT(RCC->CR, RCC_CR_HSIRDY) == 0U)
  {
    if ((HAL_GetTick() - tickstart) > HSI_TIMEOUT_VALUE)
    {
      return HAL_TIMEOUT;
    }
  }
 
  /* Set HSITRIM[6:0] bits to the reset value */
  SET_BIT(RCC->HSICFGR, RCC_HSICFGR_HSITRIM_6);
 
  /* Reset CFGR register */
  CLEAR_REG(RCC->CFGR);
 
  /* Update the SystemCoreClock and SystemD2Clock global variables */
  SystemCoreClock = HSI_VALUE;
  SystemD2Clock = HSI_VALUE;
 
  /* Adapt Systick interrupt period */
  if(HAL_InitTick(uwTickPrio) != HAL_OK)
  {
    return HAL_ERROR;
  }
 
  /* Get Start Tick */
  tickstart = HAL_GetTick();
 
  /* Wait till clock switch is ready */
  while (READ_BIT(RCC->CFGR, RCC_CFGR_SWS) != 0U)
  {
    if ((HAL_GetTick() - tickstart) > CLOCKSWITCH_TIMEOUT_VALUE)
    {
      return HAL_TIMEOUT;
    }
  }
 
  /* Get Start Tick */
  tickstart = HAL_GetTick();
 
  /* Reset CSION, CSIKERON, HSEON, HSI48ON, HSECSSON, HSIDIV bits */
  CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_HSIKERON| RCC_CR_HSIDIV| RCC_CR_HSIDIVF| RCC_CR_CSION | RCC_CR_CSIKERON  \
  | RCC_CR_HSI48ON | RCC_CR_CSSHSEON);
 
  /* Wait till HSE is disabled */
  while (READ_BIT(RCC->CR, RCC_CR_HSERDY) != 0U)
  {
    if ((HAL_GetTick() - tickstart) > HSE_TIMEOUT_VALUE)
    {
      return HAL_TIMEOUT;
    }
  }
 
  /* Get Start Tick */
  tickstart = HAL_GetTick();
 
  /* Clear PLLON bit */
  CLEAR_BIT(RCC->CR, RCC_CR_PLL1ON);
 
  /* Wait till PLL is disabled */
  while (READ_BIT(RCC->CR, RCC_CR_PLL1RDY) != 0U)
  {
    if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
    {
      return HAL_TIMEOUT;
    }
  }
 
  /* Get Start Tick */
  tickstart = HAL_GetTick();
 
  /* Reset PLL2ON bit */
  CLEAR_BIT(RCC->CR, RCC_CR_PLL2ON);
 
  /* Wait till PLL2 is disabled */
  while (READ_BIT(RCC->CR, RCC_CR_PLL2RDY) != 0U)
  {
    if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
    {
      return HAL_TIMEOUT;
    }
  }
 
  /* Get Start Tick */
  tickstart = HAL_GetTick();
 
  /* Reset PLL3 bit */
  CLEAR_BIT(RCC->CR, RCC_CR_PLL3ON);
 
  /* Wait till PLL3 is disabled */
  while (READ_BIT(RCC->CR, RCC_CR_PLL3RDY) != 0U)
  {
    if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
    {
      return HAL_TIMEOUT;
    }
  }
 
#if defined(RCC_D1CFGR_HPRE)
  /* Reset D1CFGR register */
  CLEAR_REG(RCC->D1CFGR);
 
  /* Reset D2CFGR register */
  CLEAR_REG(RCC->D2CFGR);
 
  /* Reset D3CFGR register */
  CLEAR_REG(RCC->D3CFGR);
#else
  /* Reset CDCFGR1 register */
  CLEAR_REG(RCC->CDCFGR1);
 
  /* Reset CDCFGR2 register */
  CLEAR_REG(RCC->CDCFGR2);
 
  /* Reset SRDCFGR register */
  CLEAR_REG(RCC->SRDCFGR);
#endif
 
  /* Reset PLLCKSELR register to default value */
  RCC->PLLCKSELR= RCC_PLLCKSELR_DIVM1_5|RCC_PLLCKSELR_DIVM2_5|RCC_PLLCKSELR_DIVM3_5;
 
  /* Reset PLLCFGR register to default value */
  WRITE_REG(RCC->PLLCFGR, 0x01FF0000U);
 
  /* Reset PLL1DIVR register to default value */
  WRITE_REG(RCC->PLL1DIVR,0x01010280U);
 
  /* Reset PLL1FRACR register */
  CLEAR_REG(RCC->PLL1FRACR);
 
  /* Reset PLL2DIVR register to default value */
  WRITE_REG(RCC->PLL2DIVR,0x01010280U);
 
  /* Reset PLL2FRACR register */
  CLEAR_REG(RCC->PLL2FRACR);
 
  /* Reset PLL3DIVR register to default value */
  WRITE_REG(RCC->PLL3DIVR,0x01010280U);
 
  /* Reset PLL3FRACR register */
  CLEAR_REG(RCC->PLL3FRACR);
 
#if defined(RCC_CR_HSEEXT)
  /* Reset HSEEXT  */
  CLEAR_BIT(RCC->CR, RCC_CR_HSEEXT);
#endif /* RCC_CR_HSEEXT */
 
  /* Reset HSEBYP bit */
  CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP);
 
  /* Disable all interrupts */
  CLEAR_REG(RCC->CIER);
 
  /* Clear all interrupts flags */
  WRITE_REG(RCC->CICR,0xFFFFFFFFU);
 
  /* Reset all RSR flags */
  SET_BIT(RCC->RSR, RCC_RSR_RMVF);
 
      /* Decreasing the number of wait states because of lower CPU frequency */
  if(FLASH_LATENCY_DEFAULT  < __HAL_FLASH_GET_LATENCY())
  {
    /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
    __HAL_FLASH_SET_LATENCY(FLASH_LATENCY_DEFAULT);
 
    /* Check that the new number of wait states is taken into account to access the Flash
    memory by reading the FLASH_ACR register */
    if(__HAL_FLASH_GET_LATENCY() != FLASH_LATENCY_DEFAULT)
    {
      return HAL_ERROR;
    }
 
}
 
  return HAL_OK;
}
 
__weak HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef  *RCC_OscInitStruct)
{
  uint32_t tickstart;
  uint32_t temp1_pllckcfg, temp2_pllckcfg;
 
    /* Check Null pointer */
  if(RCC_OscInitStruct == NULL)
  {
    return HAL_ERROR;
  }
 
  /* Check the parameters */
  assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType));
  /*------------------------------- HSE Configuration ------------------------*/
  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE)
  {
    /* Check the parameters */
    assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState));
 
    const uint32_t temp_sysclksrc = __HAL_RCC_GET_SYSCLK_SOURCE();
    const uint32_t temp_pllckselr = RCC->PLLCKSELR;
    /* When the HSE is used as system clock or clock source for PLL in these cases HSE will not disabled */
    if((temp_sysclksrc == RCC_CFGR_SWS_HSE) || ((temp_sysclksrc == RCC_CFGR_SWS_PLL1) && ((temp_pllckselr & RCC_PLLCKSELR_PLLSRC) == RCC_PLLCKSELR_PLLSRC_HSE)))
    {
      if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != 0U) && (RCC_OscInitStruct->HSEState == RCC_HSE_OFF))
      {
        return HAL_ERROR;
      }
    }
    else
    {
      /* Set the new HSE configuration ---------------------------------------*/
      __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState);
 
      /* Check the HSE State */
      if(RCC_OscInitStruct->HSEState != RCC_HSE_OFF)
      {
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till HSE is ready */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == 0U)
        {
          if((uint32_t) (HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
      }
      else
      {
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till HSE is disabled */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != 0U)
        {
          if((uint32_t) (HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
      }
    }
  }
  /*----------------------------- HSI Configuration --------------------------*/
  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI)
  {
    /* Check the parameters */
    assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState));
    assert_param(IS_RCC_HSICALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue));
 
    /* When the HSI is used as system clock it will not be disabled */
    const uint32_t temp_sysclksrc = __HAL_RCC_GET_SYSCLK_SOURCE();
    const uint32_t temp_pllckselr = RCC->PLLCKSELR;
    if((temp_sysclksrc == RCC_CFGR_SWS_HSI) || ((temp_sysclksrc == RCC_CFGR_SWS_PLL1) && ((temp_pllckselr & RCC_PLLCKSELR_PLLSRC) == RCC_PLLCKSELR_PLLSRC_HSI)))
    {
      /* When HSI is used as system clock it will not be disabled */
      if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != 0U) && (RCC_OscInitStruct->HSIState == RCC_HSI_OFF))
      {
        return HAL_ERROR;
      }
      /* Otherwise, just the calibration is allowed */
      else
      {
        /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
        __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
      }
    }
 
    else
    {
      /* Check the HSI State */
      if((RCC_OscInitStruct->HSIState)!= RCC_HSI_OFF)
      {
     /* Enable the Internal High Speed oscillator (HSI, HSIDIV2,HSIDIV4, or HSIDIV8) */
        __HAL_RCC_HSI_CONFIG(RCC_OscInitStruct->HSIState);
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till HSI is ready */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == 0U)
        {
          if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
 
        /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
        __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
      }
      else
      {
        /* Disable the Internal High Speed oscillator (HSI). */
        __HAL_RCC_HSI_DISABLE();
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till HSI is disabled */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != 0U)
        {
          if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
      }
    }
  }
  /*----------------------------- CSI Configuration --------------------------*/
  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_CSI) == RCC_OSCILLATORTYPE_CSI)
  {
    /* Check the parameters */
    assert_param(IS_RCC_CSI(RCC_OscInitStruct->CSIState));
    assert_param(IS_RCC_CSICALIBRATION_VALUE(RCC_OscInitStruct->CSICalibrationValue));
 
    /* When the CSI is used as system clock it will not disabled */
    const uint32_t temp_sysclksrc = __HAL_RCC_GET_SYSCLK_SOURCE();
    const uint32_t temp_pllckselr = RCC->PLLCKSELR;
    if((temp_sysclksrc == RCC_CFGR_SWS_CSI) || ((temp_sysclksrc == RCC_CFGR_SWS_PLL1) && ((temp_pllckselr & RCC_PLLCKSELR_PLLSRC) == RCC_PLLCKSELR_PLLSRC_CSI)))
    {
      /* When CSI is used as system clock it will not disabled */
      if((__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) != 0U) && (RCC_OscInitStruct->CSIState != RCC_CSI_ON))
      {
        return HAL_ERROR;
      }
      /* Otherwise, just the calibration is allowed */
      else
      {
        /* Adjusts the Internal High Speed oscillator (CSI) calibration value.*/
        __HAL_RCC_CSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->CSICalibrationValue);
      }
    }
    else
    {
      /* Check the CSI State */
      if((RCC_OscInitStruct->CSIState)!= RCC_CSI_OFF)
      {
        /* Enable the Internal High Speed oscillator (CSI). */
        __HAL_RCC_CSI_ENABLE();
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till CSI is ready */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) == 0U)
        {
          if((HAL_GetTick() - tickstart ) > CSI_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
 
        /* Adjusts the Internal High Speed oscillator (CSI) calibration value.*/
        __HAL_RCC_CSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->CSICalibrationValue);
      }
      else
      {
        /* Disable the Internal High Speed oscillator (CSI). */
        __HAL_RCC_CSI_DISABLE();
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till CSI is disabled */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) != 0U)
        {
          if((HAL_GetTick() - tickstart ) > CSI_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
      }
    }
  }
  /*------------------------------ LSI Configuration -------------------------*/
  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI)
  {
    /* Check the parameters */
    assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState));
 
    /* Check the LSI State */
    if((RCC_OscInitStruct->LSIState)!= RCC_LSI_OFF)
    {
      /* Enable the Internal Low Speed oscillator (LSI). */
      __HAL_RCC_LSI_ENABLE();
 
      /* Get Start Tick*/
      tickstart = HAL_GetTick();
 
      /* Wait till LSI is ready */
      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == 0U)
      {
        if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE)
        {
          return HAL_TIMEOUT;
        }
      }
    }
    else
    {
      /* Disable the Internal Low Speed oscillator (LSI). */
      __HAL_RCC_LSI_DISABLE();
 
      /* Get Start Tick*/
      tickstart = HAL_GetTick();
 
      /* Wait till LSI is ready */
      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != 0U)
      {
        if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE)
        {
          return HAL_TIMEOUT;
        }
      }
    }
  }
 
  /*------------------------------ HSI48 Configuration -------------------------*/
  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI48) == RCC_OSCILLATORTYPE_HSI48)
  {
    /* Check the parameters */
    assert_param(IS_RCC_HSI48(RCC_OscInitStruct->HSI48State));
 
    /* Check the HSI48 State */
    if((RCC_OscInitStruct->HSI48State)!= RCC_HSI48_OFF)
    {
      /* Enable the Internal Low Speed oscillator (HSI48). */
      __HAL_RCC_HSI48_ENABLE();
 
      /* Get time-out */
      tickstart = HAL_GetTick();
 
      /* Wait till HSI48 is ready */
      while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSI48RDY) == 0U)
      {
        if((HAL_GetTick() - tickstart ) > HSI48_TIMEOUT_VALUE)
        {
          return HAL_TIMEOUT;
        }
      }
    }
    else
    {
      /* Disable the Internal Low Speed oscillator (HSI48). */
      __HAL_RCC_HSI48_DISABLE();
 
      /* Get time-out */
      tickstart = HAL_GetTick();
 
      /* Wait till HSI48 is ready */
      while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSI48RDY) != 0U)
      {
        if((HAL_GetTick() - tickstart ) > HSI48_TIMEOUT_VALUE)
        {
          return HAL_TIMEOUT;
        }
      }
    }
  }
  /*------------------------------ LSE Configuration -------------------------*/
  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE)
  {
    /* Check the parameters */
    assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState));
 
    /* Enable write access to Backup domain */
    PWR->CR1 |= PWR_CR1_DBP;
 
    /* Wait for Backup domain Write protection disable */
    tickstart = HAL_GetTick();
 
    while((PWR->CR1 & PWR_CR1_DBP) == 0U)
    {
      if((HAL_GetTick() - tickstart ) > RCC_DBP_TIMEOUT_VALUE)
      {
        return HAL_TIMEOUT;
      }
    }
 
    /* Set the new LSE configuration -----------------------------------------*/
    __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState);
    /* Check the LSE State */
    if((RCC_OscInitStruct->LSEState) != RCC_LSE_OFF)
    {
      /* Get Start Tick*/
      tickstart = HAL_GetTick();
 
      /* Wait till LSE is ready */
      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == 0U)
      {
        if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE)
        {
          return HAL_TIMEOUT;
        }
      }
    }
    else
    {
      /* Get Start Tick*/
      tickstart = HAL_GetTick();
 
      /* Wait till LSE is disabled */
      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != 0U)
      {
        if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE)
        {
          return HAL_TIMEOUT;
        }
      }
    }
  }
  /*-------------------------------- PLL Configuration -----------------------*/
  /* Check the parameters */
  assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState));
  if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE)
  {
    /* Check if the PLL is used as system clock or not */
    if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL1)
    {
      if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON)
      {
        /* Check the parameters */
        assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource));
        assert_param(IS_RCC_PLLRGE_VALUE(RCC_OscInitStruct->PLL.PLLRGE));
        assert_param(IS_RCC_PLLVCO_VALUE(RCC_OscInitStruct->PLL.PLLVCOSEL));
        assert_param(IS_RCC_PLLM_VALUE(RCC_OscInitStruct->PLL.PLLM));
        assert_param(IS_RCC_PLLN_VALUE(RCC_OscInitStruct->PLL.PLLN));
        assert_param(IS_RCC_PLLP_VALUE(RCC_OscInitStruct->PLL.PLLP));
        assert_param(IS_RCC_PLLQ_VALUE(RCC_OscInitStruct->PLL.PLLQ));
        assert_param(IS_RCC_PLLR_VALUE(RCC_OscInitStruct->PLL.PLLR));
        assert_param(IS_RCC_PLLFRACN_VALUE(RCC_OscInitStruct->PLL.PLLFRACN));
 
        /* Disable the main PLL. */
        __HAL_RCC_PLL_DISABLE();
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till PLL is disabled */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != 0U)
        {
          if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
 
        /* Configure the main PLL clock source, multiplication and division factors. */
        __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource,
                             RCC_OscInitStruct->PLL.PLLM,
                             RCC_OscInitStruct->PLL.PLLN,
                             RCC_OscInitStruct->PLL.PLLP,
                             RCC_OscInitStruct->PLL.PLLQ,
                             RCC_OscInitStruct->PLL.PLLR);
 
         /* Disable PLLFRACN . */
         __HAL_RCC_PLLFRACN_DISABLE();
 
         /* Configure PLL PLL1FRACN */
         __HAL_RCC_PLLFRACN_CONFIG(RCC_OscInitStruct->PLL.PLLFRACN);
 
        /* Select PLL1 input reference frequency range: VCI */
        __HAL_RCC_PLL_VCIRANGE(RCC_OscInitStruct->PLL.PLLRGE) ;
 
        /* Select PLL1 output frequency range : VCO */
        __HAL_RCC_PLL_VCORANGE(RCC_OscInitStruct->PLL.PLLVCOSEL) ;
 
        /* Enable PLL System Clock output. */
         __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVP);
 
        /* Enable PLL1Q Clock output. */
         __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVQ);
 
        /* Enable PLL1R  Clock output. */
         __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVR);
 
        /* Enable PLL1FRACN . */
         __HAL_RCC_PLLFRACN_ENABLE();
 
        /* Enable the main PLL. */
        __HAL_RCC_PLL_ENABLE();
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till PLL is ready */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == 0U)
        {
          if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
      }
      else
      {
        /* Disable the main PLL. */
        __HAL_RCC_PLL_DISABLE();
 
        /* Get Start Tick*/
        tickstart = HAL_GetTick();
 
        /* Wait till PLL is disabled */
        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != 0U)
        {
          if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
      }
    }
    else
    {
      /* Do not return HAL_ERROR if request repeats the current configuration */
      temp1_pllckcfg = RCC->PLLCKSELR;
      temp2_pllckcfg = RCC->PLL1DIVR;
      if(((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_OFF) ||
         (READ_BIT(temp1_pllckcfg, RCC_PLLCKSELR_PLLSRC) != RCC_OscInitStruct->PLL.PLLSource) ||
         ((READ_BIT(temp1_pllckcfg, RCC_PLLCKSELR_DIVM1) >> RCC_PLLCKSELR_DIVM1_Pos) != RCC_OscInitStruct->PLL.PLLM) ||
         (READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_N1) != (RCC_OscInitStruct->PLL.PLLN - 1U)) ||
         ((READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_P1) >> RCC_PLL1DIVR_P1_Pos) != (RCC_OscInitStruct->PLL.PLLP - 1U)) ||
         ((READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_Q1) >> RCC_PLL1DIVR_Q1_Pos) != (RCC_OscInitStruct->PLL.PLLQ - 1U)) ||
         ((READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_R1) >> RCC_PLL1DIVR_R1_Pos) != (RCC_OscInitStruct->PLL.PLLR - 1U)))
      {
        return HAL_ERROR;
      }
    }
  }
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef  *RCC_ClkInitStruct, uint32_t FLatency)
{
  HAL_StatusTypeDef halstatus;
  uint32_t tickstart;
  uint32_t common_system_clock;
 
   /* Check Null pointer */
  if(RCC_ClkInitStruct == NULL)
  {
    return HAL_ERROR;
  }
 
  /* Check the parameters */
  assert_param(IS_RCC_CLOCKTYPE(RCC_ClkInitStruct->ClockType));
  assert_param(IS_FLASH_LATENCY(FLatency));
 
  /* To correctly read data from FLASH memory, the number of wait states (LATENCY)
    must be correctly programmed according to the frequency of the CPU clock
    (HCLK) and the supply voltage of the device. */
 
  /* Increasing the CPU frequency */
  if(FLatency > __HAL_FLASH_GET_LATENCY())
  {
    /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
    __HAL_FLASH_SET_LATENCY(FLatency);
 
    /* Check that the new number of wait states is taken into account to access the Flash
    memory by reading the FLASH_ACR register */
    if(__HAL_FLASH_GET_LATENCY() != FLatency)
    {
      return HAL_ERROR;
    }
 
  }
 
  /* Increasing the BUS frequency divider */
  /*-------------------------- D1PCLK1/CDPCLK1 Configuration ---------------------------*/
  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D1PCLK1) == RCC_CLOCKTYPE_D1PCLK1)
  {
#if defined (RCC_D1CFGR_D1PPRE)
    if((RCC_ClkInitStruct->APB3CLKDivider) > (RCC->D1CFGR & RCC_D1CFGR_D1PPRE))
    {
      assert_param(IS_RCC_D1PCLK1(RCC_ClkInitStruct->APB3CLKDivider));
      MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_D1PPRE, RCC_ClkInitStruct->APB3CLKDivider);
    }
#else
    if((RCC_ClkInitStruct->APB3CLKDivider) > (RCC->CDCFGR1 & RCC_CDCFGR1_CDPPRE))
    {
      assert_param(IS_RCC_CDPCLK1(RCC_ClkInitStruct->APB3CLKDivider));
      MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_CDPPRE, RCC_ClkInitStruct->APB3CLKDivider);
    }
#endif
  }
 
  /*-------------------------- PCLK1 Configuration ---------------------------*/
  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1)
  {
#if defined (RCC_D2CFGR_D2PPRE1)
    if((RCC_ClkInitStruct->APB1CLKDivider) > (RCC->D2CFGR & RCC_D2CFGR_D2PPRE1))
    {
      assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider));
      MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE1, (RCC_ClkInitStruct->APB1CLKDivider));
    }
#else
    if((RCC_ClkInitStruct->APB1CLKDivider) > (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1))
    {
      assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider));
      MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE1, (RCC_ClkInitStruct->APB1CLKDivider));
  }
#endif
    }
  /*-------------------------- PCLK2 Configuration ---------------------------*/
  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2)
  {
#if defined(RCC_D2CFGR_D2PPRE2)
    if((RCC_ClkInitStruct->APB2CLKDivider) > (RCC->D2CFGR & RCC_D2CFGR_D2PPRE2))
    {
      assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider));
      MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE2, (RCC_ClkInitStruct->APB2CLKDivider));
    }
#else
     if((RCC_ClkInitStruct->APB2CLKDivider) > (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2))
    {
      assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider));
      MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE2, (RCC_ClkInitStruct->APB2CLKDivider));
    }
#endif
  }
 
  /*-------------------------- D3PCLK1 Configuration ---------------------------*/
  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D3PCLK1) == RCC_CLOCKTYPE_D3PCLK1)
  {
#if defined(RCC_D3CFGR_D3PPRE)
    if((RCC_ClkInitStruct->APB4CLKDivider) > (RCC->D3CFGR & RCC_D3CFGR_D3PPRE))
    {
      assert_param(IS_RCC_D3PCLK1(RCC_ClkInitStruct->APB4CLKDivider));
      MODIFY_REG(RCC->D3CFGR, RCC_D3CFGR_D3PPRE, (RCC_ClkInitStruct->APB4CLKDivider) );
    }
#else
    if((RCC_ClkInitStruct->APB4CLKDivider) > (RCC->SRDCFGR & RCC_SRDCFGR_SRDPPRE))
    {
      assert_param(IS_RCC_D3PCLK1(RCC_ClkInitStruct->APB4CLKDivider));
      MODIFY_REG(RCC->SRDCFGR, RCC_SRDCFGR_SRDPPRE, (RCC_ClkInitStruct->APB4CLKDivider) );
    }
#endif
  }
 
   /*-------------------------- HCLK Configuration --------------------------*/
  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK)
  {
#if defined (RCC_D1CFGR_HPRE)
    if((RCC_ClkInitStruct->AHBCLKDivider) > (RCC->D1CFGR & RCC_D1CFGR_HPRE))
    {
      /* Set the new HCLK clock divider */
      assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider));
      MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider);
    }
#else
        if((RCC_ClkInitStruct->AHBCLKDivider) > (RCC->CDCFGR1 & RCC_CDCFGR1_HPRE))
    {
      /* Set the new HCLK clock divider */
      assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider));
      MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_HPRE, RCC_ClkInitStruct->AHBCLKDivider);
    }
#endif
  }
 
    /*------------------------- SYSCLK Configuration -------------------------*/
    if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK)
    {
      assert_param(IS_RCC_SYSCLK(RCC_ClkInitStruct->SYSCLKDivider));
      assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource));
#if defined(RCC_D1CFGR_D1CPRE)
      MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_D1CPRE, RCC_ClkInitStruct->SYSCLKDivider);
#else
      MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_CDCPRE, RCC_ClkInitStruct->SYSCLKDivider);
#endif
      /* HSE is selected as System Clock Source */
      if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE)
      {
        /* Check the HSE ready flag */
        if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == 0U)
        {
          return HAL_ERROR;
        }
      }
      /* PLL is selected as System Clock Source */
      else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK)
      {
        /* Check the PLL ready flag */
        if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == 0U)
        {
          return HAL_ERROR;
        }
      }
      /* CSI is selected as System Clock Source */
      else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_CSI)
      {
        /* Check the PLL ready flag */
        if(__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) == 0U)
        {
          return HAL_ERROR;
        }
      }
      /* HSI is selected as System Clock Source */
      else
      {
        /* Check the HSI ready flag */
        if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == 0U)
        {
          return HAL_ERROR;
        }
      }
      MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource);
 
      /* Get Start Tick*/
      tickstart = HAL_GetTick();
 
        while (__HAL_RCC_GET_SYSCLK_SOURCE() !=  (RCC_ClkInitStruct->SYSCLKSource << RCC_CFGR_SWS_Pos))
        {
          if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE)
          {
            return HAL_TIMEOUT;
          }
        }
 
    }
 
    /* Decreasing the BUS frequency divider */
   /*-------------------------- HCLK Configuration --------------------------*/
  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK)
  {
#if defined(RCC_D1CFGR_HPRE)
    if((RCC_ClkInitStruct->AHBCLKDivider) < (RCC->D1CFGR & RCC_D1CFGR_HPRE))
    {
      /* Set the new HCLK clock divider */
      assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider));
      MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider);
    }
#else
    if((RCC_ClkInitStruct->AHBCLKDivider) < (RCC->CDCFGR1 & RCC_CDCFGR1_HPRE))
    {
      /* Set the new HCLK clock divider */
      assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider));
      MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_HPRE, RCC_ClkInitStruct->AHBCLKDivider);
    }
#endif
  }
 
  /* Decreasing the number of wait states because of lower CPU frequency */
  if(FLatency < __HAL_FLASH_GET_LATENCY())
  {
    /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
    __HAL_FLASH_SET_LATENCY(FLatency);
 
    /* Check that the new number of wait states is taken into account to access the Flash
    memory by reading the FLASH_ACR register */
    if(__HAL_FLASH_GET_LATENCY() != FLatency)
    {
      return HAL_ERROR;
    }
 }
 
  /*-------------------------- D1PCLK1/CDPCLK Configuration ---------------------------*/
 if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D1PCLK1) == RCC_CLOCKTYPE_D1PCLK1)
 {
#if defined(RCC_D1CFGR_D1PPRE)
   if((RCC_ClkInitStruct->APB3CLKDivider) < (RCC->D1CFGR & RCC_D1CFGR_D1PPRE))
   {
     assert_param(IS_RCC_D1PCLK1(RCC_ClkInitStruct->APB3CLKDivider));
     MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_D1PPRE, RCC_ClkInitStruct->APB3CLKDivider);
   }
#else
   if((RCC_ClkInitStruct->APB3CLKDivider) < (RCC->CDCFGR1 & RCC_CDCFGR1_CDPPRE))
   {
     assert_param(IS_RCC_CDPCLK1(RCC_ClkInitStruct->APB3CLKDivider));
     MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_CDPPRE, RCC_ClkInitStruct->APB3CLKDivider);
   }
#endif
 }
 
  /*-------------------------- PCLK1 Configuration ---------------------------*/
 if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1)
 {
#if defined(RCC_D2CFGR_D2PPRE1)
   if((RCC_ClkInitStruct->APB1CLKDivider) < (RCC->D2CFGR & RCC_D2CFGR_D2PPRE1))
   {
     assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider));
     MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE1, (RCC_ClkInitStruct->APB1CLKDivider));
   }
#else
   if((RCC_ClkInitStruct->APB1CLKDivider) < (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1))
   {
     assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider));
     MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE1, (RCC_ClkInitStruct->APB1CLKDivider));
   }
#endif
 }
 
  /*-------------------------- PCLK2 Configuration ---------------------------*/
 if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2)
 {
#if defined (RCC_D2CFGR_D2PPRE2)
   if((RCC_ClkInitStruct->APB2CLKDivider) < (RCC->D2CFGR & RCC_D2CFGR_D2PPRE2))
   {
     assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider));
     MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE2, (RCC_ClkInitStruct->APB2CLKDivider));
   }
#else
   if((RCC_ClkInitStruct->APB2CLKDivider) < (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2))
   {
     assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider));
     MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE2, (RCC_ClkInitStruct->APB2CLKDivider));
   }
#endif
 }
 
  /*-------------------------- D3PCLK1/SRDPCLK1 Configuration ---------------------------*/
 if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D3PCLK1) == RCC_CLOCKTYPE_D3PCLK1)
 {
#if defined(RCC_D3CFGR_D3PPRE)
   if((RCC_ClkInitStruct->APB4CLKDivider) < (RCC->D3CFGR & RCC_D3CFGR_D3PPRE))
   {
     assert_param(IS_RCC_D3PCLK1(RCC_ClkInitStruct->APB4CLKDivider));
     MODIFY_REG(RCC->D3CFGR, RCC_D3CFGR_D3PPRE, (RCC_ClkInitStruct->APB4CLKDivider) );
   }
#else
   if((RCC_ClkInitStruct->APB4CLKDivider) < (RCC->SRDCFGR & RCC_SRDCFGR_SRDPPRE))
   {
     assert_param(IS_RCC_SRDPCLK1(RCC_ClkInitStruct->APB4CLKDivider));
     MODIFY_REG(RCC->SRDCFGR, RCC_SRDCFGR_SRDPPRE, (RCC_ClkInitStruct->APB4CLKDivider) );
   }
#endif
 }
 
  /* Update the SystemCoreClock global variable */
#if defined(RCC_D1CFGR_D1CPRE)
  common_system_clock = HAL_RCC_GetSysClockFreq() >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_D1CPRE)>> RCC_D1CFGR_D1CPRE_Pos]) & 0x1FU);
#else
  common_system_clock = HAL_RCC_GetSysClockFreq() >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE)>> RCC_CDCFGR1_CDCPRE_Pos]) & 0x1FU);
#endif
 
#if defined(RCC_D1CFGR_HPRE)
  SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_HPRE)>> RCC_D1CFGR_HPRE_Pos]) & 0x1FU));
#else
  SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)>> RCC_CDCFGR1_HPRE_Pos]) & 0x1FU));
#endif
 
#if defined(DUAL_CORE) && defined(CORE_CM4)
  SystemCoreClock = SystemD2Clock;
#else
  SystemCoreClock = common_system_clock;
#endif /* DUAL_CORE && CORE_CM4 */
 
  /* Configure the source of time base considering new system clocks settings*/
  halstatus = HAL_InitTick (uwTickPrio);
 
  return halstatus;
}
 
void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv)
{
  GPIO_InitTypeDef GPIO_InitStruct;
  /* Check the parameters */
  assert_param(IS_RCC_MCO(RCC_MCOx));
  assert_param(IS_RCC_MCODIV(RCC_MCODiv));
  /* RCC_MCO1 */
  if(RCC_MCOx == RCC_MCO1)
  {
    assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource));
 
    /* MCO1 Clock Enable */
    MCO1_CLK_ENABLE();
 
    /* Configure the MCO1 pin in alternate function mode */
    GPIO_InitStruct.Pin = MCO1_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
    HAL_GPIO_Init(MCO1_GPIO_PORT, &GPIO_InitStruct);
 
    /* Mask MCO1 and MCO1PRE[3:0] bits then Select MCO1 clock source and pre-scaler */
    MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO1 | RCC_CFGR_MCO1PRE), (RCC_MCOSource | RCC_MCODiv));
  }
  else
  {
    assert_param(IS_RCC_MCO2SOURCE(RCC_MCOSource));
 
    /* MCO2 Clock Enable */
    MCO2_CLK_ENABLE();
 
    /* Configure the MCO2 pin in alternate function mode */
    GPIO_InitStruct.Pin = MCO2_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
    HAL_GPIO_Init(MCO2_GPIO_PORT, &GPIO_InitStruct);
 
    /* Mask MCO2 and MCO2PRE[3:0] bits then Select MCO2 clock source and pre-scaler */
    MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO2 | RCC_CFGR_MCO2PRE), (RCC_MCOSource | (RCC_MCODiv << 7U)));
  }
}
 
void HAL_RCC_EnableCSS(void)
{
  SET_BIT(RCC->CR, RCC_CR_CSSHSEON) ;
}
 
void HAL_RCC_DisableCSS(void)
{
  CLEAR_BIT(RCC->CR, RCC_CR_CSSHSEON);
}
 
uint32_t HAL_RCC_GetSysClockFreq(void)
{
  uint32_t pllp, pllsource, pllm, pllfracen, hsivalue;
  float_t fracn1, pllvco;
  uint32_t sysclockfreq;
 
  /* Get SYSCLK source -------------------------------------------------------*/
 
  switch (RCC->CFGR & RCC_CFGR_SWS)
  {
  case RCC_CFGR_SWS_HSI:  /* HSI used as system clock source */
 
   if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U)
      {
        sysclockfreq = (uint32_t) (HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER()>> 3));
      }
      else
      {
        sysclockfreq = (uint32_t) HSI_VALUE;
      }
 
    break;
 
  case RCC_CFGR_SWS_CSI:  /* CSI used as system clock  source */
    sysclockfreq = CSI_VALUE;
    break;
 
  case RCC_CFGR_SWS_HSE:  /* HSE used as system clock  source */
    sysclockfreq = HSE_VALUE;
    break;
 
  case RCC_CFGR_SWS_PLL1:  /* PLL1 used as system clock  source */
 
    /* PLL_VCO = (HSE_VALUE or HSI_VALUE or CSI_VALUE/ PLLM) * PLLN
    SYSCLK = PLL_VCO / PLLR
    */
    pllsource = (RCC->PLLCKSELR & RCC_PLLCKSELR_PLLSRC);
    pllm = ((RCC->PLLCKSELR & RCC_PLLCKSELR_DIVM1)>> 4)  ;
    pllfracen = ((RCC-> PLLCFGR & RCC_PLLCFGR_PLL1FRACEN)>>RCC_PLLCFGR_PLL1FRACEN_Pos);
    fracn1 = (float_t)(uint32_t)(pllfracen* ((RCC->PLL1FRACR & RCC_PLL1FRACR_FRACN1)>> 3));
 
    if (pllm != 0U)
    {
      switch (pllsource)
      {
      case RCC_PLLSOURCE_HSI:  /* HSI used as PLL clock source */
 
       if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U)
        {
          hsivalue= (HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER()>> 3));
          pllvco = ( (float_t)hsivalue / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
        }
        else
        {
          pllvco = ((float_t)HSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
        }
        break;
 
      case RCC_PLLSOURCE_CSI:  /* CSI used as PLL clock source */
        pllvco = ((float_t)CSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
        break;
 
      case RCC_PLLSOURCE_HSE:  /* HSE used as PLL clock source */
        pllvco = ((float_t)HSE_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
        break;
 
      default:
        pllvco = ((float_t)CSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 );
        break;
      }
      pllp = (((RCC->PLL1DIVR & RCC_PLL1DIVR_P1) >>9) + 1U ) ;
      sysclockfreq =  (uint32_t)(float_t)(pllvco/(float_t)pllp);
    }
    else
    {
      sysclockfreq = 0U;
    }
    break;
 
  default:
    sysclockfreq = CSI_VALUE;
    break;
  }
 
  return sysclockfreq;
}
 
 
uint32_t HAL_RCC_GetHCLKFreq(void)
{
uint32_t common_system_clock;
 
#if defined(RCC_D1CFGR_D1CPRE)
  common_system_clock = HAL_RCC_GetSysClockFreq() >> (D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_D1CPRE)>> RCC_D1CFGR_D1CPRE_Pos] & 0x1FU);
#else
  common_system_clock = HAL_RCC_GetSysClockFreq() >> (D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE)>> RCC_CDCFGR1_CDCPRE_Pos] & 0x1FU);
#endif
 
#if defined(RCC_D1CFGR_HPRE)
  SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_HPRE)>> RCC_D1CFGR_HPRE_Pos]) & 0x1FU));
#else
  SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)>> RCC_CDCFGR1_HPRE_Pos]) & 0x1FU));
#endif
 
#if defined(DUAL_CORE) && defined(CORE_CM4)
  SystemCoreClock = SystemD2Clock;
#else
  SystemCoreClock = common_system_clock;
#endif /* DUAL_CORE && CORE_CM4 */
 
  return SystemD2Clock;
}
 
 
uint32_t HAL_RCC_GetPCLK1Freq(void)
{
#if defined (RCC_D2CFGR_D2PPRE1)
  /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/
  return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->D2CFGR & RCC_D2CFGR_D2PPRE1)>> RCC_D2CFGR_D2PPRE1_Pos]) & 0x1FU));
#else
 /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/
  return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1)>> RCC_CDCFGR2_CDPPRE1_Pos]) & 0x1FU));
#endif
}
 
 
uint32_t HAL_RCC_GetPCLK2Freq(void)
{
  /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/
#if defined(RCC_D2CFGR_D2PPRE2)
  return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->D2CFGR & RCC_D2CFGR_D2PPRE2)>> RCC_D2CFGR_D2PPRE2_Pos]) & 0x1FU));
#else
  return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2)>> RCC_CDCFGR2_CDPPRE2_Pos]) & 0x1FU));
#endif
}
 
void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef  *RCC_OscInitStruct)
{
  /* Set all possible values for the Oscillator type parameter ---------------*/
  RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_CSI | \
                                      RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI| RCC_OSCILLATORTYPE_HSI48;
 
  /* Get the HSE configuration -----------------------------------------------*/
#if defined(RCC_CR_HSEEXT)
  if((RCC->CR &(RCC_CR_HSEBYP | RCC_CR_HSEEXT)) == RCC_CR_HSEBYP)
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS;
  }
  else if((RCC->CR &(RCC_CR_HSEBYP | RCC_CR_HSEEXT)) == (RCC_CR_HSEBYP | RCC_CR_HSEEXT))
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS_DIGITAL;
  }
  else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON)
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_ON;
  }
  else
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_OFF;
  }
#else
  if((RCC->CR &RCC_CR_HSEBYP) == RCC_CR_HSEBYP)
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS;
  }
  else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON)
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_ON;
  }
  else
  {
    RCC_OscInitStruct->HSEState = RCC_HSE_OFF;
  }
#endif /* RCC_CR_HSEEXT */
 
   /* Get the CSI configuration -----------------------------------------------*/
  if((RCC->CR &RCC_CR_CSION) == RCC_CR_CSION)
  {
    RCC_OscInitStruct->CSIState = RCC_CSI_ON;
  }
  else
  {
    RCC_OscInitStruct->CSIState = RCC_CSI_OFF;
  }
 
#if defined(RCC_VER_X)
  if(HAL_GetREVID() <= REV_ID_Y)
  {
    RCC_OscInitStruct->CSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, HAL_RCC_REV_Y_CSITRIM_Msk) >> HAL_RCC_REV_Y_CSITRIM_Pos);
  }
  else
  {
    RCC_OscInitStruct->CSICalibrationValue = (uint32_t)(READ_BIT(RCC->CSICFGR, RCC_CSICFGR_CSITRIM) >> RCC_CSICFGR_CSITRIM_Pos);
  }
#else
 RCC_OscInitStruct->CSICalibrationValue = (uint32_t)(READ_BIT(RCC->CSICFGR, RCC_CSICFGR_CSITRIM) >> RCC_CSICFGR_CSITRIM_Pos);
#endif /*RCC_VER_X*/
 
  /* Get the HSI configuration -----------------------------------------------*/
  if((RCC->CR &RCC_CR_HSION) == RCC_CR_HSION)
  {
    RCC_OscInitStruct->HSIState = RCC_HSI_ON;
  }
  else
  {
    RCC_OscInitStruct->HSIState = RCC_HSI_OFF;
  }
 
#if defined(RCC_VER_X)
  if(HAL_GetREVID() <= REV_ID_Y)
  {
    RCC_OscInitStruct->HSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, HAL_RCC_REV_Y_HSITRIM_Msk) >> HAL_RCC_REV_Y_HSITRIM_Pos);
  }
  else
  {
    RCC_OscInitStruct->HSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, RCC_HSICFGR_HSITRIM) >> RCC_HSICFGR_HSITRIM_Pos);
  }
#else
    RCC_OscInitStruct->HSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, RCC_HSICFGR_HSITRIM) >> RCC_HSICFGR_HSITRIM_Pos);
#endif /*RCC_VER_X*/
 
  /* Get the LSE configuration -----------------------------------------------*/
#if defined(RCC_BDCR_LSEEXT)
  if((RCC->BDCR &(RCC_BDCR_LSEBYP|RCC_BDCR_LSEEXT)) == RCC_BDCR_LSEBYP)
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS;
  }
  else if((RCC->BDCR &(RCC_BDCR_LSEBYP|RCC_BDCR_LSEEXT)) == (RCC_BDCR_LSEBYP|RCC_BDCR_LSEEXT))
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS_DIGITAL;
  }
  else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON)
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_ON;
  }
  else
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_OFF;
  }
#else
  if((RCC->BDCR &RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP)
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS;
  }
  else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON)
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_ON;
  }
  else
  {
    RCC_OscInitStruct->LSEState = RCC_LSE_OFF;
  }
#endif /* RCC_BDCR_LSEEXT */
 
  /* Get the LSI configuration -----------------------------------------------*/
  if((RCC->CSR &RCC_CSR_LSION) == RCC_CSR_LSION)
  {
    RCC_OscInitStruct->LSIState = RCC_LSI_ON;
  }
  else
  {
    RCC_OscInitStruct->LSIState = RCC_LSI_OFF;
  }
 
  /* Get the HSI48 configuration ---------------------------------------------*/
  if((RCC->CR & RCC_CR_HSI48ON) == RCC_CR_HSI48ON)
  {
    RCC_OscInitStruct->HSI48State = RCC_HSI48_ON;
  }
  else
  {
    RCC_OscInitStruct->HSI48State = RCC_HSI48_OFF;
  }
 
  /* Get the PLL configuration -----------------------------------------------*/
  if((RCC->CR &RCC_CR_PLLON) == RCC_CR_PLLON)
  {
    RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON;
  }
  else
  {
    RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF;
  }
  RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->PLLCKSELR & RCC_PLLCKSELR_PLLSRC);
  RCC_OscInitStruct->PLL.PLLM = (uint32_t)((RCC->PLLCKSELR & RCC_PLLCKSELR_DIVM1)>> RCC_PLLCKSELR_DIVM1_Pos);
  RCC_OscInitStruct->PLL.PLLN = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_N1) >> RCC_PLL1DIVR_N1_Pos)+ 1U;
  RCC_OscInitStruct->PLL.PLLR = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_R1) >> RCC_PLL1DIVR_R1_Pos)+ 1U;
  RCC_OscInitStruct->PLL.PLLP = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_P1) >> RCC_PLL1DIVR_P1_Pos)+ 1U;
  RCC_OscInitStruct->PLL.PLLQ = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_Q1) >> RCC_PLL1DIVR_Q1_Pos)+ 1U;
  RCC_OscInitStruct->PLL.PLLRGE = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLL1RGE));
  RCC_OscInitStruct->PLL.PLLVCOSEL = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLL1VCOSEL) >> RCC_PLLCFGR_PLL1VCOSEL_Pos);
  RCC_OscInitStruct->PLL.PLLFRACN = (uint32_t)(((RCC->PLL1FRACR & RCC_PLL1FRACR_FRACN1) >> RCC_PLL1FRACR_FRACN1_Pos));
}
 
void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef  *RCC_ClkInitStruct, uint32_t *pFLatency)
{
  /* Set all possible values for the Clock type parameter --------------------*/
  RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 |
                                 RCC_CLOCKTYPE_PCLK2 |  RCC_CLOCKTYPE_D3PCLK1  ;
 
  /* Get the SYSCLK configuration --------------------------------------------*/
  RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW);
 
#if defined(RCC_D1CFGR_D1CPRE)
  /* Get the SYSCLK configuration ----------------------------------------------*/
  RCC_ClkInitStruct->SYSCLKDivider = (uint32_t)(RCC->D1CFGR & RCC_D1CFGR_D1CPRE);
 
  /* Get the D1HCLK configuration ----------------------------------------------*/
  RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->D1CFGR & RCC_D1CFGR_HPRE);
 
  /* Get the APB3 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB3CLKDivider = (uint32_t)(RCC->D1CFGR & RCC_D1CFGR_D1PPRE);
 
  /* Get the APB1 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->D2CFGR & RCC_D2CFGR_D2PPRE1);
 
  /* Get the APB2 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)(RCC->D2CFGR & RCC_D2CFGR_D2PPRE2);
 
  /* Get the APB4 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB4CLKDivider = (uint32_t)(RCC->D3CFGR & RCC_D3CFGR_D3PPRE);
#else
  /* Get the SYSCLK configuration ----------------------------------------------*/
  RCC_ClkInitStruct->SYSCLKDivider = (uint32_t)(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE);
 
  /* Get the D1HCLK configuration ----------------------------------------------*/
  RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE);
 
  /* Get the APB3 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB3CLKDivider = (uint32_t)(RCC->CDCFGR1 & RCC_CDCFGR1_CDPPRE);
 
  /* Get the APB1 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1);
 
  /* Get the APB2 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2);
 
  /* Get the APB4 configuration ----------------------------------------------*/
  RCC_ClkInitStruct->APB4CLKDivider = (uint32_t)(RCC->SRDCFGR & RCC_SRDCFGR_SRDPPRE);
#endif
 
  /* Get the Flash Wait State (Latency) configuration ------------------------*/
  *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY);
}
 
void HAL_RCC_NMI_IRQHandler(void)
{
  /* Check RCC CSSF flag  */
  if(__HAL_RCC_GET_IT(RCC_IT_CSS))
  {
    /* RCC Clock Security System interrupt user callback */
    HAL_RCC_CCSCallback();
 
    /* Clear RCC CSS pending bit */
    __HAL_RCC_CLEAR_IT(RCC_IT_CSS);
  }
}
 
__weak void HAL_RCC_CCSCallback(void)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_RCC_CCSCallback could be implemented in the user file
   */
}
 
#endif /* HAL_RCC_MODULE_ENABLED */
 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/