Peripheral Clock Source

Functions
__STATIC_INLINE void	LL_RCC_SetUSARTClockSource (uint32_t USARTxSource)
	Configure USARTx clock source.
__STATIC_INLINE void	LL_RCC_SetLPUARTClockSource (uint32_t LPUARTxSource)
	Configure LPUART1x clock source.
__STATIC_INLINE void	LL_RCC_SetI2CClockSource (uint32_t I2CxSource)
	Configure I2Cx clock source.
__STATIC_INLINE void	LL_RCC_SetLPTIMClockSource (uint32_t LPTIMxSource)
	Configure LPTIMx clock source.
__STATIC_INLINE void	LL_RCC_SetSAIClockSource (uint32_t SAIxSource)
	Configure SAIx clock source.
__STATIC_INLINE void	LL_RCC_SetSDMMCClockSource (uint32_t SDMMCxSource)
	Configure SDMMC1 clock source.
__STATIC_INLINE void	LL_RCC_SetRNGClockSource (uint32_t RNGxSource)
	Configure RNG clock source.
__STATIC_INLINE void	LL_RCC_SetUSBClockSource (uint32_t USBxSource)
	Configure USB clock source.
__STATIC_INLINE void	LL_RCC_SetADCClockSource (uint32_t ADCxSource)
	Configure ADC clock source.
__STATIC_INLINE void	LL_RCC_SetSWPMIClockSource (uint32_t SWPMIxSource)
	Configure SWPMI clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetUSARTClockSource (uint32_t USARTx)
	Get USARTx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetLPUARTClockSource (uint32_t LPUARTx)
	Get LPUARTx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetI2CClockSource (uint32_t I2Cx)
	Get I2Cx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetLPTIMClockSource (uint32_t LPTIMx)
	Get LPTIMx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetSAIClockSource (uint32_t SAIx)
	Get SAIx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetSDMMCClockSource (uint32_t SDMMCx)
	Get SDMMCx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetRNGClockSource (uint32_t RNGx)
	Get RNGx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetUSBClockSource (uint32_t USBx)
	Get USBx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetADCClockSource (uint32_t ADCx)
	Get ADCx clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetSWPMIClockSource (uint32_t SPWMIx)
	Get SWPMIx clock source.

---

Function Documentation

__STATIC_INLINE uint32_t LL_RCC_GetADCClockSource

(

uint32_t

ADCx

)

Get ADCx clock source.

Reference Manual to LL API cross reference:

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.

References LL_RCC_ADC_CLKSOURCE_NONE, and LL_RCC_ADC_CLKSOURCE_SYSCLK.

Referenced by LL_RCC_GetADCClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetI2CClockSource

(

uint32_t

I2Cx

)

Get I2Cx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetI2CClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetLPTIMClockSource

(

uint32_t

LPTIMx

)

Get LPTIMx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_LPTIM_Disable(), and LL_RCC_GetLPTIMClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetLPUARTClockSource

(

uint32_t

LPUARTx

)

Get LPUARTx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetLPUARTClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetRNGClockSource

(

uint32_t

RNGx

)

Get RNGx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetRNGClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetSAIClockSource

(

uint32_t

SAIx

)

Get SAIx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetSAIClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetSDMMCClockSource

(

uint32_t

SDMMCx

)

Get SDMMCx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetSDMMCClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetSWPMIClockSource

(

uint32_t

SPWMIx

)

Get SWPMIx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetSWPMIClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetUSARTClockSource

(

uint32_t

USARTx

)

Get USARTx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetUSARTClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetUSBClockSource

(

uint32_t

USBx

)

Get USBx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_RCC_GetUSBClockFreq().

__STATIC_INLINE void LL_RCC_SetADCClockSource

(

uint32_t

ADCxSource

)

Configure ADC clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetI2CClockSource

(

uint32_t

I2CxSource

)

Configure I2Cx clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetLPTIMClockSource

(

uint32_t

LPTIMxSource

)

Configure LPTIMx clock source.

Reference Manual to LL API cross reference:

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.

Referenced by LL_LPTIM_Disable().

__STATIC_INLINE void LL_RCC_SetLPUARTClockSource

(

uint32_t

LPUARTxSource

)

Configure LPUART1x clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetRNGClockSource

(

uint32_t

RNGxSource

)

Configure RNG clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetSAIClockSource

(

uint32_t

SAIxSource

)

Configure SAIx clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetSDMMCClockSource

(

uint32_t

SDMMCxSource

)

Configure SDMMC1 clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetSWPMIClockSource

(

uint32_t

SWPMIxSource

)

Configure SWPMI clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetUSARTClockSource

(

uint32_t

USARTxSource

)

Configure USARTx clock source.

Reference Manual to LL API cross reference:

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.

__STATIC_INLINE void LL_RCC_SetUSBClockSource

(

uint32_t

USBxSource

)

Configure USB clock source.

Reference Manual to LL API cross reference:

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.