System

Functions
__STATIC_INLINE void	LL_RCC_SetSysClkSource (uint32_t Source)
	Configure the system clock source CFGR SW LL_RCC_SetSysClkSource. More...
__STATIC_INLINE uint32_t	LL_RCC_GetSysClkSource (void)
	Get the system clock source CFGR SWS LL_RCC_GetSysClkSource. More...
__STATIC_INLINE void	LL_RCC_SetAHBPrescaler (uint32_t Prescaler)
	Set AHB prescaler CFGR HPRE LL_RCC_SetAHBPrescaler. More...
__STATIC_INLINE void	LL_RCC_SetAPB1Prescaler (uint32_t Prescaler)
	Set APB1 prescaler CFGR PPRE1 LL_RCC_SetAPB1Prescaler. More...
__STATIC_INLINE void	LL_RCC_SetAPB2Prescaler (uint32_t Prescaler)
	Set APB2 prescaler CFGR PPRE2 LL_RCC_SetAPB2Prescaler. More...
__STATIC_INLINE uint32_t	LL_RCC_GetAHBPrescaler (void)
	Get AHB prescaler CFGR HPRE LL_RCC_GetAHBPrescaler. More...
__STATIC_INLINE uint32_t	LL_RCC_GetAPB1Prescaler (void)
	Get APB1 prescaler CFGR PPRE1 LL_RCC_GetAPB1Prescaler. More...
__STATIC_INLINE uint32_t	LL_RCC_GetAPB2Prescaler (void)
	Get APB2 prescaler CFGR PPRE2 LL_RCC_GetAPB2Prescaler. More...
__STATIC_INLINE void	LL_RCC_SetClkAfterWakeFromStop (uint32_t Clock)
	Set Clock After Wake-Up From Stop mode CFGR STOPWUCK LL_RCC_SetClkAfterWakeFromStop. More...
__STATIC_INLINE uint32_t	LL_RCC_GetClkAfterWakeFromStop (void)
	Get Clock After Wake-Up From Stop mode CFGR STOPWUCK LL_RCC_GetClkAfterWakeFromStop. More...

Detailed Description

Function Documentation

LL_RCC_GetAHBPrescaler()

__STATIC_INLINE uint32_t LL_RCC_GetAHBPrescaler

(

void

)

Get AHB prescaler CFGR HPRE LL_RCC_GetAHBPrescaler.

Return values

Returned

value can be one of the following values: LL_RCC_SYSCLK_DIV_1 LL_RCC_SYSCLK_DIV_2 LL_RCC_SYSCLK_DIV_4 LL_RCC_SYSCLK_DIV_8 LL_RCC_SYSCLK_DIV_16 LL_RCC_SYSCLK_DIV_64 LL_RCC_SYSCLK_DIV_128 LL_RCC_SYSCLK_DIV_256 LL_RCC_SYSCLK_DIV_512

Definition at line 2825 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_HPRE));
}

LL_RCC_GetAPB1Prescaler()

__STATIC_INLINE uint32_t LL_RCC_GetAPB1Prescaler

(

void

)

Get APB1 prescaler CFGR PPRE1 LL_RCC_GetAPB1Prescaler.

Return values

Returned

value can be one of the following values: LL_RCC_APB1_DIV_1 LL_RCC_APB1_DIV_2 LL_RCC_APB1_DIV_4 LL_RCC_APB1_DIV_8 LL_RCC_APB1_DIV_16

Definition at line 2840 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PPRE1));
}

LL_RCC_GetAPB2Prescaler()

__STATIC_INLINE uint32_t LL_RCC_GetAPB2Prescaler

(

void

)

Get APB2 prescaler CFGR PPRE2 LL_RCC_GetAPB2Prescaler.

Return values

Returned

value can be one of the following values: LL_RCC_APB2_DIV_1 LL_RCC_APB2_DIV_2 LL_RCC_APB2_DIV_4 LL_RCC_APB2_DIV_8 LL_RCC_APB2_DIV_16

Definition at line 2855 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PPRE2));
}

LL_RCC_GetClkAfterWakeFromStop()

__STATIC_INLINE uint32_t LL_RCC_GetClkAfterWakeFromStop

(

void

)

Get Clock After Wake-Up From Stop mode CFGR STOPWUCK LL_RCC_GetClkAfterWakeFromStop.

Return values

Returned

value can be one of the following values: LL_RCC_STOP_WAKEUPCLOCK_MSI LL_RCC_STOP_WAKEUPCLOCK_HSI

Definition at line 2880 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_STOPWUCK));
}

LL_RCC_GetSysClkSource()

__STATIC_INLINE uint32_t LL_RCC_GetSysClkSource

(

void

)

Get the system clock source CFGR SWS LL_RCC_GetSysClkSource.

Return values

Returned

value can be one of the following values: LL_RCC_SYS_CLKSOURCE_STATUS_MSI LL_RCC_SYS_CLKSOURCE_STATUS_HSI LL_RCC_SYS_CLKSOURCE_STATUS_HSE LL_RCC_SYS_CLKSOURCE_STATUS_PLL

Definition at line 2754 of file stm32l4xx_ll_rcc.h.

{
  return (uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_SWS));
}

LL_RCC_SetAHBPrescaler()

__STATIC_INLINE void LL_RCC_SetAHBPrescaler

(

uint32_t

Prescaler

)

Set AHB prescaler CFGR HPRE LL_RCC_SetAHBPrescaler.

Parameters

Prescaler

This parameter can be one of the following values: LL_RCC_SYSCLK_DIV_1 LL_RCC_SYSCLK_DIV_2 LL_RCC_SYSCLK_DIV_4 LL_RCC_SYSCLK_DIV_8 LL_RCC_SYSCLK_DIV_16 LL_RCC_SYSCLK_DIV_64 LL_RCC_SYSCLK_DIV_128 LL_RCC_SYSCLK_DIV_256 LL_RCC_SYSCLK_DIV_512

Return values

None

Definition at line 2774 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, Prescaler);
}

LL_RCC_SetAPB1Prescaler()

__STATIC_INLINE void LL_RCC_SetAPB1Prescaler

(

uint32_t

Prescaler

)

Set APB1 prescaler CFGR PPRE1 LL_RCC_SetAPB1Prescaler.

Parameters

Prescaler

This parameter can be one of the following values: LL_RCC_APB1_DIV_1 LL_RCC_APB1_DIV_2 LL_RCC_APB1_DIV_4 LL_RCC_APB1_DIV_8 LL_RCC_APB1_DIV_16

Return values

None

Definition at line 2790 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, Prescaler);
}

LL_RCC_SetAPB2Prescaler()

__STATIC_INLINE void LL_RCC_SetAPB2Prescaler

(

uint32_t

Prescaler

)

Set APB2 prescaler CFGR PPRE2 LL_RCC_SetAPB2Prescaler.

Parameters

Prescaler

This parameter can be one of the following values: LL_RCC_APB2_DIV_1 LL_RCC_APB2_DIV_2 LL_RCC_APB2_DIV_4 LL_RCC_APB2_DIV_8 LL_RCC_APB2_DIV_16

Return values

None

Definition at line 2806 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, Prescaler);
}

LL_RCC_SetClkAfterWakeFromStop()

__STATIC_INLINE void LL_RCC_SetClkAfterWakeFromStop

(

uint32_t

Clock

)

Set Clock After Wake-Up From Stop mode CFGR STOPWUCK LL_RCC_SetClkAfterWakeFromStop.

Parameters

Clock

This parameter can be one of the following values: LL_RCC_STOP_WAKEUPCLOCK_MSI LL_RCC_STOP_WAKEUPCLOCK_HSI

Return values

None

Definition at line 2868 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CFGR, RCC_CFGR_STOPWUCK, Clock);
}

LL_RCC_SetSysClkSource()

__STATIC_INLINE void LL_RCC_SetSysClkSource

(

uint32_t

Source

)

Configure the system clock source CFGR SW LL_RCC_SetSysClkSource.

Parameters

Source

This parameter can be one of the following values: LL_RCC_SYS_CLKSOURCE_MSI LL_RCC_SYS_CLKSOURCE_HSI LL_RCC_SYS_CLKSOURCE_HSE LL_RCC_SYS_CLKSOURCE_PLL

Return values

None

Definition at line 2740 of file stm32l4xx_ll_rcc.h.

{
  MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, Source);
}