Peripheral Clock Source

Functions
__STATIC_INLINE void	LL_RCC_SetUSARTClockSource (uint32_t USARTxSource)
	Configure USARTx clock source CCIPR USARTxSEL LL_RCC_SetUSARTClockSource. More...
__STATIC_INLINE void	LL_RCC_SetUARTClockSource (uint32_t UARTxSource)
	Configure UARTx clock source CCIPR UARTxSEL LL_RCC_SetUARTClockSource. More...
__STATIC_INLINE void	LL_RCC_SetLPUARTClockSource (uint32_t LPUARTxSource)
	Configure LPUART1x clock source CCIPR LPUART1SEL LL_RCC_SetLPUARTClockSource. More...
__STATIC_INLINE void	LL_RCC_SetI2CClockSource (uint32_t I2CxSource)
	Configure I2Cx clock source CCIPR I2CxSEL LL_RCC_SetI2CClockSource. More...
__STATIC_INLINE void	LL_RCC_SetLPTIMClockSource (uint32_t LPTIMxSource)
	Configure LPTIMx clock source CCIPR LPTIMxSEL LL_RCC_SetLPTIMClockSource. More...
__STATIC_INLINE void	LL_RCC_SetSAIClockSource (uint32_t SAIxSource)
	Configure SAIx clock source CCIPR SAIxSEL LL_RCC_SetSAIClockSource. More...
__STATIC_INLINE void	LL_RCC_SetSDMMCKernelClockSource (uint32_t SDMMCxSource)
	Configure SDMMC1 kernel clock source CCIPR2 SDMMCSEL LL_RCC_SetSDMMCKernelClockSource. More...
__STATIC_INLINE void	LL_RCC_SetSDMMCClockSource (uint32_t SDMMCxSource)
	Configure SDMMC1 clock source CCIPR CLK48SEL LL_RCC_SetSDMMCClockSource. More...
__STATIC_INLINE void	LL_RCC_SetRNGClockSource (uint32_t RNGxSource)
	Configure RNG clock source CCIPR CLK48SEL LL_RCC_SetRNGClockSource. More...
__STATIC_INLINE void	LL_RCC_SetUSBClockSource (uint32_t USBxSource)
	Configure USB clock source CCIPR CLK48SEL LL_RCC_SetUSBClockSource. More...
__STATIC_INLINE void	LL_RCC_SetADCClockSource (uint32_t ADCxSource)
	Configure ADC clock source CCIPR ADCSEL LL_RCC_SetADCClockSource. More...
__STATIC_INLINE void	LL_RCC_SetSWPMIClockSource (uint32_t SWPMIxSource)
	Configure SWPMI clock source CCIPR SWPMI1SEL LL_RCC_SetSWPMIClockSource. More...
__STATIC_INLINE void	LL_RCC_SetDFSDMAudioClockSource (uint32_t Source)
	Configure DFSDM Audio clock source CCIPR2 ADFSDM1SEL LL_RCC_SetDFSDMAudioClockSource. More...
__STATIC_INLINE void	LL_RCC_SetDFSDMClockSource (uint32_t DFSDMxSource)
	Configure DFSDM Kernel clock source CCIPR DFSDM1SEL LL_RCC_SetDFSDMClockSource. More...
__STATIC_INLINE void	LL_RCC_SetDSIClockSource (uint32_t Source)
	Configure DSI clock source CCIPR2 DSISEL LL_RCC_SetDSIClockSource. More...
__STATIC_INLINE void	LL_RCC_SetLTDCClockSource (uint32_t Source)
	Configure LTDC Clock Source CCIPR2 PLLSAI2DIVR LL_RCC_SetLTDCClockSource. More...
__STATIC_INLINE void	LL_RCC_SetOCTOSPIClockSource (uint32_t Source)
	Configure OCTOSPI clock source CCIPR2 OSPISEL LL_RCC_SetOCTOSPIClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetUSARTClockSource (uint32_t USARTx)
	Get USARTx clock source CCIPR USARTxSEL LL_RCC_GetUSARTClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetUARTClockSource (uint32_t UARTx)
	Get UARTx clock source CCIPR UARTxSEL LL_RCC_GetUARTClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetLPUARTClockSource (uint32_t LPUARTx)
	Get LPUARTx clock source CCIPR LPUART1SEL LL_RCC_GetLPUARTClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetI2CClockSource (uint32_t I2Cx)
	Get I2Cx clock source CCIPR I2CxSEL LL_RCC_GetI2CClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetLPTIMClockSource (uint32_t LPTIMx)
	Get LPTIMx clock source CCIPR LPTIMxSEL LL_RCC_GetLPTIMClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetSAIClockSource (uint32_t SAIx)
	Get SAIx clock source CCIPR SAIxSEL LL_RCC_GetSAIClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetSDMMCKernelClockSource (uint32_t SDMMCx)
	Get SDMMCx kernel clock source CCIPR2 SDMMCSEL LL_RCC_GetSDMMCKernelClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetSDMMCClockSource (uint32_t SDMMCx)
	Get SDMMCx clock source CCIPR CLK48SEL LL_RCC_GetSDMMCClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetRNGClockSource (uint32_t RNGx)
	Get RNGx clock source CCIPR CLK48SEL LL_RCC_GetRNGClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetUSBClockSource (uint32_t USBx)
	Get USBx clock source CCIPR CLK48SEL LL_RCC_GetUSBClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetADCClockSource (uint32_t ADCx)
	Get ADCx clock source CCIPR ADCSEL LL_RCC_GetADCClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetSWPMIClockSource (uint32_t SPWMIx)
	Get SWPMIx clock source CCIPR SWPMI1SEL LL_RCC_GetSWPMIClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetDFSDMAudioClockSource (uint32_t DFSDMx)
	Get DFSDM Audio Clock Source CCIPR2 ADFSDM1SEL LL_RCC_GetDFSDMAudioClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetDFSDMClockSource (uint32_t DFSDMx)
	Get DFSDMx Kernel clock source CCIPR DFSDM1SEL LL_RCC_GetDFSDMClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetDSIClockSource (uint32_t DSIx)
	Get DSI Clock Source CCIPR2 DSISEL LL_RCC_GetDSIClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetLTDCClockSource (uint32_t LTDCx)
	Get LTDC Clock Source CCIPR2 PLLSAI2DIVR LL_RCC_GetLTDCClockSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetOCTOSPIClockSource (uint32_t OCTOSPIx)
	Get OCTOSPI clock source CCIPR2 OSPISEL LL_RCC_GetOCTOSPIClockSource. More...

Detailed Description

Function Documentation

LL_RCC_GetADCClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetADCClockSource

(

uint32_t

ADCx

)

Get ADCx clock source CCIPR ADCSEL LL_RCC_GetADCClockSource.

Parameters

ADCx	This parameter can be one of the following values: LL_RCC_ADC_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_ADC_CLKSOURCE_NONE LL_RCC_ADC_CLKSOURCE_PLLSAI1 (*) LL_RCC_ADC_CLKSOURCE_PLLSAI2 (*) LL_RCC_ADC_CLKSOURCE_SYSCLK (*) value not defined in all devices.

Definition at line 3510 of file stm32l4xx_ll_rcc.h.

{
#if defined(RCC_CCIPR_ADCSEL)
  return (uint32_t)(READ_BIT(RCC->CCIPR, ADCx));
#else
  (void)ADCx;  /* unused */
  return ((READ_BIT(RCC->AHB2ENR, RCC_AHB2ENR_ADCEN) != 0U) ? LL_RCC_ADC_CLKSOURCE_SYSCLK : LL_RCC_ADC_CLKSOURCE_NONE);
#endif /* RCC_CCIPR_ADCSEL */
}

LL_RCC_GetDFSDMAudioClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetDFSDMAudioClockSource

(

uint32_t

DFSDMx

)

Get DFSDM Audio Clock Source CCIPR2 ADFSDM1SEL LL_RCC_GetDFSDMAudioClockSource.

Parameters

DFSDMx

This parameter can be one of the following values: LL_RCC_DFSDM1_AUDIO_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_DFSDM1_AUDIO_CLKSOURCE_SAI1 LL_RCC_DFSDM1_AUDIO_CLKSOURCE_HSI LL_RCC_DFSDM1_AUDIO_CLKSOURCE_MSI

Definition at line 3548 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR2, DFSDMx));
}

LL_RCC_GetDFSDMClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetDFSDMClockSource

(

uint32_t

DFSDMx

)

Get DFSDMx Kernel clock source CCIPR DFSDM1SEL LL_RCC_GetDFSDMClockSource.

Parameters

DFSDMx

This parameter can be one of the following values: LL_RCC_DFSDM1_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_DFSDM1_CLKSOURCE_PCLK2 LL_RCC_DFSDM1_CLKSOURCE_SYSCLK

Definition at line 3567 of file stm32l4xx_ll_rcc.h.

{
#if defined(RCC_CCIPR2_DFSDM1SEL)
  return (uint32_t)(READ_BIT(RCC->CCIPR2, DFSDMx));
#else
  return (uint32_t)(READ_BIT(RCC->CCIPR, DFSDMx));
#endif /* RCC_CCIPR2_DFSDM1SEL */
}

LL_RCC_GetDSIClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetDSIClockSource

(

uint32_t

DSIx

)

Get DSI Clock Source CCIPR2 DSISEL LL_RCC_GetDSIClockSource.

Parameters

DSIx	This parameter can be one of the following values: LL_RCC_DSI_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_DSI_CLKSOURCE_PHY LL_RCC_DSI_CLKSOURCE_PLL

Definition at line 3587 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR2, DSIx));
}

LL_RCC_GetI2CClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetI2CClockSource

(

uint32_t

I2Cx

)

Get I2Cx clock source CCIPR I2CxSEL LL_RCC_GetI2CClockSource.

Parameters

I2Cx	This parameter can be one of the following values: LL_RCC_I2C1_CLKSOURCE LL_RCC_I2C2_CLKSOURCE (*) LL_RCC_I2C3_CLKSOURCE LL_RCC_I2C4_CLKSOURCE (*) (*) value not defined in all devices.

Return values

Returned

value can be one of the following values: LL_RCC_I2C1_CLKSOURCE_PCLK1 LL_RCC_I2C1_CLKSOURCE_SYSCLK LL_RCC_I2C1_CLKSOURCE_HSI LL_RCC_I2C2_CLKSOURCE_PCLK1 (*) LL_RCC_I2C2_CLKSOURCE_SYSCLK (*) LL_RCC_I2C2_CLKSOURCE_HSI (*) LL_RCC_I2C3_CLKSOURCE_PCLK1 LL_RCC_I2C3_CLKSOURCE_SYSCLK LL_RCC_I2C3_CLKSOURCE_HSI LL_RCC_I2C4_CLKSOURCE_PCLK1 (*) LL_RCC_I2C4_CLKSOURCE_SYSCLK (*) LL_RCC_I2C4_CLKSOURCE_HSI (*) (*) value not defined in all devices.

Definition at line 3356 of file stm32l4xx_ll_rcc.h.

{
  __IO const uint32_t *reg = (__IO uint32_t *)(uint32_t)(RCC_BASE + 0x88U + (I2Cx >> 24U));
  return (uint32_t)((READ_BIT(*reg, 3UL << ((I2Cx & 0x001F0000U) >> 16U)) >> ((I2Cx & 0x001F0000U) >> 16U)) | (I2Cx & 0xFFFF0000U));
}

LL_RCC_GetLPTIMClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetLPTIMClockSource

(

uint32_t

LPTIMx

)

Get LPTIMx clock source CCIPR LPTIMxSEL LL_RCC_GetLPTIMClockSource.

Parameters

LPTIMx

This parameter can be one of the following values: LL_RCC_LPTIM1_CLKSOURCE LL_RCC_LPTIM2_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_LPTIM1_CLKSOURCE_PCLK1 LL_RCC_LPTIM1_CLKSOURCE_LSI LL_RCC_LPTIM1_CLKSOURCE_HSI LL_RCC_LPTIM1_CLKSOURCE_LSE LL_RCC_LPTIM2_CLKSOURCE_PCLK1 LL_RCC_LPTIM2_CLKSOURCE_LSI LL_RCC_LPTIM2_CLKSOURCE_HSI LL_RCC_LPTIM2_CLKSOURCE_LSE

Definition at line 3378 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)((READ_BIT(RCC->CCIPR, LPTIMx) >> 16U) | LPTIMx);
}

LL_RCC_GetLPUARTClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetLPUARTClockSource

(

uint32_t

LPUARTx

)

Get LPUARTx clock source CCIPR LPUART1SEL LL_RCC_GetLPUARTClockSource.

Parameters

LPUARTx

This parameter can be one of the following values: LL_RCC_LPUART1_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_LPUART1_CLKSOURCE_PCLK1 LL_RCC_LPUART1_CLKSOURCE_SYSCLK LL_RCC_LPUART1_CLKSOURCE_HSI LL_RCC_LPUART1_CLKSOURCE_LSE

Definition at line 3325 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, LPUARTx));
}

LL_RCC_GetLTDCClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetLTDCClockSource

(

uint32_t

LTDCx

)

Get LTDC Clock Source CCIPR2 PLLSAI2DIVR LL_RCC_GetLTDCClockSource.

Parameters

LTDCx

This parameter can be one of the following values: LL_RCC_LTDC_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV2 LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV4 LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV8 LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV16

Definition at line 3605 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR2, LTDCx));
}

LL_RCC_GetOCTOSPIClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetOCTOSPIClockSource

(

uint32_t

OCTOSPIx

)

Get OCTOSPI clock source CCIPR2 OSPISEL LL_RCC_GetOCTOSPIClockSource.

Parameters

OCTOSPIx

This parameter can be one of the following values: LL_RCC_OCTOSPI_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_OCTOSPI_CLKSOURCE_SYSCLK LL_RCC_OCTOSPI_CLKSOURCE_MSI LL_RCC_OCTOSPI_CLKSOURCE_PLL

Definition at line 3622 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR2, OCTOSPIx));
}

LL_RCC_GetRNGClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetRNGClockSource

(

uint32_t

RNGx

)

Get RNGx clock source CCIPR CLK48SEL LL_RCC_GetRNGClockSource.

Parameters

RNGx	This parameter can be one of the following values: LL_RCC_RNG_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_RNG_CLKSOURCE_NONE (*) LL_RCC_RNG_CLKSOURCE_HSI48 (*) LL_RCC_RNG_CLKSOURCE_PLLSAI1 (*) LL_RCC_RNG_CLKSOURCE_PLL LL_RCC_RNG_CLKSOURCE_MSI (*) value not defined in all devices.

Definition at line 3471 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, RNGx));
}

LL_RCC_GetSAIClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetSAIClockSource

(

uint32_t

SAIx

)

Get SAIx clock source CCIPR SAIxSEL LL_RCC_GetSAIClockSource.

Parameters

SAIx	This parameter can be one of the following values: LL_RCC_SAI1_CLKSOURCE LL_RCC_SAI2_CLKSOURCE (*) (*) value not defined in all devices.

Return values

Returned

value can be one of the following values: LL_RCC_SAI1_CLKSOURCE_PLLSAI1 LL_RCC_SAI1_CLKSOURCE_PLLSAI2 (*) LL_RCC_SAI1_CLKSOURCE_PLL LL_RCC_SAI1_CLKSOURCE_PIN LL_RCC_SAI2_CLKSOURCE_PLLSAI1 (*) LL_RCC_SAI2_CLKSOURCE_PLLSAI2 (*) LL_RCC_SAI2_CLKSOURCE_PLL (*) LL_RCC_SAI2_CLKSOURCE_PIN (*) (*) value not defined in all devices.

Definition at line 3408 of file stm32l4xx_ll_rcc.h.

{
#if defined(RCC_CCIPR2_SAI1SEL)
  return (uint32_t)(READ_BIT(RCC->CCIPR2, SAIx) | (SAIx << 16U));
#else
  return (uint32_t)(READ_BIT(RCC->CCIPR, SAIx) >> 16U | SAIx);
#endif /* RCC_CCIPR2_SAI1SEL */
}

LL_RCC_GetSDMMCClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetSDMMCClockSource

(

uint32_t

SDMMCx

)

Get SDMMCx clock source CCIPR CLK48SEL LL_RCC_GetSDMMCClockSource.

Parameters

SDMMCx

This parameter can be one of the following values: LL_RCC_SDMMC1_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_SDMMC1_CLKSOURCE_NONE (*) LL_RCC_SDMMC1_CLKSOURCE_HSI48 (*) LL_RCC_SDMMC1_CLKSOURCE_PLLSAI1 (*) LL_RCC_SDMMC1_CLKSOURCE_PLL LL_RCC_SDMMC1_CLKSOURCE_MSI (*) (*) value not defined in all devices.

Definition at line 3451 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, SDMMCx));
}

LL_RCC_GetSDMMCKernelClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetSDMMCKernelClockSource

(

uint32_t

SDMMCx

)

Get SDMMCx kernel clock source CCIPR2 SDMMCSEL LL_RCC_GetSDMMCKernelClockSource.

Parameters

SDMMCx

This parameter can be one of the following values: LL_RCC_SDMMC1_KERNELCLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_SDMMC1_KERNELCLKSOURCE_48CLK (*) LL_RCC_SDMMC1_KERNELCLKSOURCE_PLL (*) (*) value not defined in all devices.

Definition at line 3431 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR2, SDMMCx));
}

LL_RCC_GetSWPMIClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetSWPMIClockSource

(

uint32_t

SPWMIx

)

Get SWPMIx clock source CCIPR SWPMI1SEL LL_RCC_GetSWPMIClockSource.

Parameters

SPWMIx

This parameter can be one of the following values: LL_RCC_SWPMI1_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_SWPMI1_CLKSOURCE_PCLK1 LL_RCC_SWPMI1_CLKSOURCE_HSI

Definition at line 3530 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, SPWMIx));
}

LL_RCC_GetUARTClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetUARTClockSource

(

uint32_t

UARTx

)

Get UARTx clock source CCIPR UARTxSEL LL_RCC_GetUARTClockSource.

Parameters

UARTx

This parameter can be one of the following values: LL_RCC_UART4_CLKSOURCE LL_RCC_UART5_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_UART4_CLKSOURCE_PCLK1 LL_RCC_UART4_CLKSOURCE_SYSCLK LL_RCC_UART4_CLKSOURCE_HSI LL_RCC_UART4_CLKSOURCE_LSE LL_RCC_UART5_CLKSOURCE_PCLK1 LL_RCC_UART5_CLKSOURCE_SYSCLK LL_RCC_UART5_CLKSOURCE_HSI LL_RCC_UART5_CLKSOURCE_LSE

Definition at line 3308 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, UARTx) | (UARTx << 16U));
}

LL_RCC_GetUSARTClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetUSARTClockSource

(

uint32_t

USARTx

)

Get USARTx clock source CCIPR USARTxSEL LL_RCC_GetUSARTClockSource.

Parameters

USARTx

This parameter can be one of the following values: LL_RCC_USART1_CLKSOURCE LL_RCC_USART2_CLKSOURCE LL_RCC_USART3_CLKSOURCE (*) (*) value not defined in all devices.

Return values

Returned

value can be one of the following values: LL_RCC_USART1_CLKSOURCE_PCLK2 LL_RCC_USART1_CLKSOURCE_SYSCLK LL_RCC_USART1_CLKSOURCE_HSI LL_RCC_USART1_CLKSOURCE_LSE LL_RCC_USART2_CLKSOURCE_PCLK1 LL_RCC_USART2_CLKSOURCE_SYSCLK LL_RCC_USART2_CLKSOURCE_HSI LL_RCC_USART2_CLKSOURCE_LSE LL_RCC_USART3_CLKSOURCE_PCLK1 (*) LL_RCC_USART3_CLKSOURCE_SYSCLK (*) LL_RCC_USART3_CLKSOURCE_HSI (*) LL_RCC_USART3_CLKSOURCE_LSE (*) (*) value not defined in all devices.

Definition at line 3286 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, USARTx) | (USARTx << 16U));
}

LL_RCC_GetUSBClockSource()

__STATIC_INLINE uint32_t LL_RCC_GetUSBClockSource

(

uint32_t

USBx

)

Get USBx clock source CCIPR CLK48SEL LL_RCC_GetUSBClockSource.

Parameters

USBx	This parameter can be one of the following values: LL_RCC_USB_CLKSOURCE

Return values

Returned

value can be one of the following values: LL_RCC_USB_CLKSOURCE_NONE (*) LL_RCC_USB_CLKSOURCE_HSI48 (*) LL_RCC_USB_CLKSOURCE_PLLSAI1 (*) LL_RCC_USB_CLKSOURCE_PLL LL_RCC_USB_CLKSOURCE_MSI (*) value not defined in all devices.

Definition at line 3491 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CCIPR, USBx));
}

LL_RCC_SetADCClockSource()

__STATIC_INLINE void LL_RCC_SetADCClockSource

(

uint32_t

ADCxSource

)

Configure ADC clock source CCIPR ADCSEL LL_RCC_SetADCClockSource.

Parameters

ADCxSource

This parameter can be one of the following values: LL_RCC_ADC_CLKSOURCE_NONE LL_RCC_ADC_CLKSOURCE_PLLSAI1 (*) LL_RCC_ADC_CLKSOURCE_PLLSAI2 (*) LL_RCC_ADC_CLKSOURCE_SYSCLK (*) value not defined in all devices.

Return values

None

Definition at line 3153 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_ADCSEL, ADCxSource);
}

LL_RCC_SetDFSDMAudioClockSource()

__STATIC_INLINE void LL_RCC_SetDFSDMAudioClockSource

(

uint32_t

Source

)

Configure DFSDM Audio clock source CCIPR2 ADFSDM1SEL LL_RCC_SetDFSDMAudioClockSource.

Parameters

Source

This parameter can be one of the following values: LL_RCC_DFSDM1_AUDIO_CLKSOURCE_SAI1 LL_RCC_DFSDM1_AUDIO_CLKSOURCE_HSI LL_RCC_DFSDM1_AUDIO_CLKSOURCE_MSI

Return values

None

Definition at line 3185 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR2, RCC_CCIPR2_ADFSDM1SEL, Source);
}

LL_RCC_SetDFSDMClockSource()

__STATIC_INLINE void LL_RCC_SetDFSDMClockSource

(

uint32_t

DFSDMxSource

)

Configure DFSDM Kernel clock source CCIPR DFSDM1SEL LL_RCC_SetDFSDMClockSource.

Parameters

DFSDMxSource

This parameter can be one of the following values: LL_RCC_DFSDM1_CLKSOURCE_PCLK2 LL_RCC_DFSDM1_CLKSOURCE_SYSCLK

Return values

None

Definition at line 3203 of file stm32l4xx_ll_rcc.h.

{
#if defined(RCC_CCIPR2_DFSDM1SEL)
  MODIFY_REG(RCC->CCIPR2, RCC_CCIPR2_DFSDM1SEL, DFSDMxSource);
#else
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_DFSDM1SEL, DFSDMxSource);
#endif /* RCC_CCIPR2_DFSDM1SEL */
}

LL_RCC_SetDSIClockSource()

__STATIC_INLINE void LL_RCC_SetDSIClockSource

(

uint32_t

Source

)

Configure DSI clock source CCIPR2 DSISEL LL_RCC_SetDSIClockSource.

Parameters

Source

This parameter can be one of the following values: LL_RCC_DSI_CLKSOURCE_PHY LL_RCC_DSI_CLKSOURCE_PLL

Return values

None

Definition at line 3222 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR2, RCC_CCIPR2_DSISEL, Source);
}

LL_RCC_SetI2CClockSource()

__STATIC_INLINE void LL_RCC_SetI2CClockSource

(

uint32_t

I2CxSource

)

Configure I2Cx clock source CCIPR I2CxSEL LL_RCC_SetI2CClockSource.

Parameters

I2CxSource

This parameter can be one of the following values: LL_RCC_I2C1_CLKSOURCE_PCLK1 LL_RCC_I2C1_CLKSOURCE_SYSCLK LL_RCC_I2C1_CLKSOURCE_HSI LL_RCC_I2C2_CLKSOURCE_PCLK1 (*) LL_RCC_I2C2_CLKSOURCE_SYSCLK (*) LL_RCC_I2C2_CLKSOURCE_HSI (*) LL_RCC_I2C3_CLKSOURCE_PCLK1 LL_RCC_I2C3_CLKSOURCE_SYSCLK LL_RCC_I2C3_CLKSOURCE_HSI LL_RCC_I2C4_CLKSOURCE_PCLK1 (*) LL_RCC_I2C4_CLKSOURCE_SYSCLK (*) LL_RCC_I2C4_CLKSOURCE_HSI (*) (*) value not defined in all devices.

Return values

None

Definition at line 3011 of file stm32l4xx_ll_rcc.h.

{
  __IO uint32_t *reg = (__IO uint32_t *)(uint32_t)(RCC_BASE + 0x88U + (I2CxSource >> 24U));
  MODIFY_REG(*reg, 3UL << ((I2CxSource & 0x001F0000U) >> 16U), ((I2CxSource & 0x000000FFU) << ((I2CxSource & 0x001F0000U) >> 16U)));
}

LL_RCC_SetLPTIMClockSource()

__STATIC_INLINE void LL_RCC_SetLPTIMClockSource

(

uint32_t

LPTIMxSource

)

Configure LPTIMx clock source CCIPR LPTIMxSEL LL_RCC_SetLPTIMClockSource.

Parameters

LPTIMxSource

This parameter can be one of the following values: LL_RCC_LPTIM1_CLKSOURCE_PCLK1 LL_RCC_LPTIM1_CLKSOURCE_LSI LL_RCC_LPTIM1_CLKSOURCE_HSI LL_RCC_LPTIM1_CLKSOURCE_LSE LL_RCC_LPTIM2_CLKSOURCE_PCLK1 LL_RCC_LPTIM2_CLKSOURCE_LSI LL_RCC_LPTIM2_CLKSOURCE_HSI LL_RCC_LPTIM2_CLKSOURCE_LSE

Return values

None

Definition at line 3031 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, (LPTIMxSource & 0xFFFF0000U), (LPTIMxSource << 16U));
}

LL_RCC_SetLPUARTClockSource()

__STATIC_INLINE void LL_RCC_SetLPUARTClockSource

(

uint32_t

LPUARTxSource

)

Configure LPUART1x clock source CCIPR LPUART1SEL LL_RCC_SetLPUARTClockSource.

Parameters

LPUARTxSource

This parameter can be one of the following values: LL_RCC_LPUART1_CLKSOURCE_PCLK1 LL_RCC_LPUART1_CLKSOURCE_SYSCLK LL_RCC_LPUART1_CLKSOURCE_HSI LL_RCC_LPUART1_CLKSOURCE_LSE

Return values

None

Definition at line 2986 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_LPUART1SEL, LPUARTxSource);
}

LL_RCC_SetLTDCClockSource()

__STATIC_INLINE void LL_RCC_SetLTDCClockSource

(

uint32_t

Source

)

Configure LTDC Clock Source CCIPR2 PLLSAI2DIVR LL_RCC_SetLTDCClockSource.

Parameters

Source

This parameter can be one of the following values: LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV2 LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV4 LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV8 LL_RCC_LTDC_CLKSOURCE_PLLSAI2R_DIV16

Return values

None

Definition at line 3239 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR2, RCC_CCIPR2_PLLSAI2DIVR, Source);
}

LL_RCC_SetOCTOSPIClockSource()

__STATIC_INLINE void LL_RCC_SetOCTOSPIClockSource

(

uint32_t

Source

)

Configure OCTOSPI clock source CCIPR2 OSPISEL LL_RCC_SetOCTOSPIClockSource.

Parameters

Source

This parameter can be one of the following values: LL_RCC_OCTOSPI_CLKSOURCE_SYSCLK LL_RCC_OCTOSPI_CLKSOURCE_MSI LL_RCC_OCTOSPI_CLKSOURCE_PLL

Return values

None

Definition at line 3255 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR2, RCC_CCIPR2_OSPISEL, Source);
}

LL_RCC_SetRNGClockSource()

__STATIC_INLINE void LL_RCC_SetRNGClockSource

(

uint32_t

RNGxSource

)

Configure RNG clock source CCIPR CLK48SEL LL_RCC_SetRNGClockSource.

Parameters

RNGxSource

This parameter can be one of the following values: LL_RCC_RNG_CLKSOURCE_NONE (*) LL_RCC_RNG_CLKSOURCE_HSI48 (*) LL_RCC_RNG_CLKSOURCE_PLLSAI1 (*) LL_RCC_RNG_CLKSOURCE_PLL LL_RCC_RNG_CLKSOURCE_MSI (*) value not defined in all devices.

Return values

None

Definition at line 3115 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_CLK48SEL, RNGxSource);
}

LL_RCC_SetSAIClockSource()

__STATIC_INLINE void LL_RCC_SetSAIClockSource

(

uint32_t

SAIxSource

)

Configure SAIx clock source CCIPR SAIxSEL LL_RCC_SetSAIClockSource.

Parameters

SAIxSource

This parameter can be one of the following values: LL_RCC_SAI1_CLKSOURCE_PLLSAI1 LL_RCC_SAI1_CLKSOURCE_PLLSAI2 (*) LL_RCC_SAI1_CLKSOURCE_PLL LL_RCC_SAI1_CLKSOURCE_PIN LL_RCC_SAI2_CLKSOURCE_PLLSAI1 (*) LL_RCC_SAI2_CLKSOURCE_PLLSAI2 (*) LL_RCC_SAI2_CLKSOURCE_PLL (*) LL_RCC_SAI2_CLKSOURCE_PIN (*) (*) value not defined in all devices.

Return values

None

Definition at line 3057 of file stm32l4xx_ll_rcc.h.

{
#if defined(RCC_CCIPR2_SAI1SEL)
  MODIFY_REG(RCC->CCIPR2, (SAIxSource >> 16U), (SAIxSource & 0x0000FFFFU));
#else
  MODIFY_REG(RCC->CCIPR, (SAIxSource & 0xFFFF0000U), (SAIxSource << 16U));
#endif /* RCC_CCIPR2_SAI1SEL */
}

LL_RCC_SetSDMMCClockSource()

__STATIC_INLINE void LL_RCC_SetSDMMCClockSource

(

uint32_t

SDMMCxSource

)

Configure SDMMC1 clock source CCIPR CLK48SEL LL_RCC_SetSDMMCClockSource.

Parameters

SDMMCxSource

This parameter can be one of the following values: LL_RCC_SDMMC1_CLKSOURCE_NONE (*) LL_RCC_SDMMC1_CLKSOURCE_HSI48 (*) LL_RCC_SDMMC1_CLKSOURCE_PLLSAI1 (*) LL_RCC_SDMMC1_CLKSOURCE_PLL LL_RCC_SDMMC1_CLKSOURCE_MSI (*) (*) value not defined in all devices.

Return values

None

Definition at line 3097 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_CLK48SEL, SDMMCxSource);
}

LL_RCC_SetSDMMCKernelClockSource()

__STATIC_INLINE void LL_RCC_SetSDMMCKernelClockSource

(

uint32_t

SDMMCxSource

)

Configure SDMMC1 kernel clock source CCIPR2 SDMMCSEL LL_RCC_SetSDMMCKernelClockSource.

Parameters

SDMMCxSource

This parameter can be one of the following values: LL_RCC_SDMMC1_KERNELCLKSOURCE_48CLK (*) LL_RCC_SDMMC1_KERNELCLKSOURCE_PLLP (*) (*) value not defined in all devices.

Return values

None

Definition at line 3078 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR2, RCC_CCIPR2_SDMMCSEL, SDMMCxSource);
}

LL_RCC_SetSWPMIClockSource()

__STATIC_INLINE void LL_RCC_SetSWPMIClockSource

(

uint32_t

SWPMIxSource

)

Configure SWPMI clock source CCIPR SWPMI1SEL LL_RCC_SetSWPMIClockSource.

Parameters

SWPMIxSource

This parameter can be one of the following values: LL_RCC_SWPMI1_CLKSOURCE_PCLK1 LL_RCC_SWPMI1_CLKSOURCE_HSI

Return values

None

Definition at line 3168 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_SWPMI1SEL, SWPMIxSource);
}

LL_RCC_SetUARTClockSource()

__STATIC_INLINE void LL_RCC_SetUARTClockSource

(

uint32_t

UARTxSource

)

Configure UARTx clock source CCIPR UARTxSEL LL_RCC_SetUARTClockSource.

Parameters

UARTxSource

This parameter can be one of the following values: LL_RCC_UART4_CLKSOURCE_PCLK1 LL_RCC_UART4_CLKSOURCE_SYSCLK LL_RCC_UART4_CLKSOURCE_HSI LL_RCC_UART4_CLKSOURCE_LSE LL_RCC_UART5_CLKSOURCE_PCLK1 LL_RCC_UART5_CLKSOURCE_SYSCLK LL_RCC_UART5_CLKSOURCE_HSI LL_RCC_UART5_CLKSOURCE_LSE

Return values

None

Definition at line 2970 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, (UARTxSource >> 16U), (UARTxSource & 0x0000FFFFU));
}

LL_RCC_SetUSARTClockSource()

__STATIC_INLINE void LL_RCC_SetUSARTClockSource

(

uint32_t

USARTxSource

)

Configure USARTx clock source CCIPR USARTxSEL LL_RCC_SetUSARTClockSource.

Parameters

USARTxSource

This parameter can be one of the following values: LL_RCC_USART1_CLKSOURCE_PCLK2 LL_RCC_USART1_CLKSOURCE_SYSCLK LL_RCC_USART1_CLKSOURCE_HSI LL_RCC_USART1_CLKSOURCE_LSE LL_RCC_USART2_CLKSOURCE_PCLK1 LL_RCC_USART2_CLKSOURCE_SYSCLK LL_RCC_USART2_CLKSOURCE_HSI LL_RCC_USART2_CLKSOURCE_LSE LL_RCC_USART3_CLKSOURCE_PCLK1 (*) LL_RCC_USART3_CLKSOURCE_SYSCLK (*) LL_RCC_USART3_CLKSOURCE_HSI (*) LL_RCC_USART3_CLKSOURCE_LSE (*) (*) value not defined in all devices.

Return values

None

Definition at line 2950 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, (USARTxSource >> 16U), (USARTxSource & 0x0000FFFFU));
}

LL_RCC_SetUSBClockSource()

__STATIC_INLINE void LL_RCC_SetUSBClockSource

(

uint32_t

USBxSource

)

Configure USB clock source CCIPR CLK48SEL LL_RCC_SetUSBClockSource.

Parameters

USBxSource

This parameter can be one of the following values: LL_RCC_USB_CLKSOURCE_NONE (*) LL_RCC_USB_CLKSOURCE_HSI48 (*) LL_RCC_USB_CLKSOURCE_PLLSAI1 (*) LL_RCC_USB_CLKSOURCE_PLL LL_RCC_USB_CLKSOURCE_MSI (*) value not defined in all devices.

Return values

None

Definition at line 3134 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CCIPR, RCC_CCIPR_CLK48SEL, USBxSource);
}