System

Functions
__STATIC_INLINE void	LL_RCC_SetSysClkSource (uint32_t Source)
	Configure the system clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetSysClkSource (void)
	Get the system clock source.
__STATIC_INLINE void	LL_RCC_SetAHBPrescaler (uint32_t Prescaler)
	Set AHB prescaler.
__STATIC_INLINE void	LL_RCC_SetAPB1Prescaler (uint32_t Prescaler)
	Set APB1 prescaler.
__STATIC_INLINE void	LL_RCC_SetAPB2Prescaler (uint32_t Prescaler)
	Set APB2 prescaler.
__STATIC_INLINE uint32_t	LL_RCC_GetAHBPrescaler (void)
	Get AHB prescaler.
__STATIC_INLINE uint32_t	LL_RCC_GetAPB1Prescaler (void)
	Get APB1 prescaler.
__STATIC_INLINE uint32_t	LL_RCC_GetAPB2Prescaler (void)
	Get APB2 prescaler.

---

Function Documentation

__STATIC_INLINE uint32_t LL_RCC_GetAHBPrescaler

(

void

)

Get AHB prescaler.

Reference Manual to LL API cross reference:

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 3277 of file stm32f4xx_ll_rcc.h.

Referenced by RCC_GetHCLKClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetAPB1Prescaler

(

void

)

Get APB1 prescaler.

Reference Manual to LL API cross reference:

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 3292 of file stm32f4xx_ll_rcc.h.

Referenced by RCC_GetPCLK1ClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetAPB2Prescaler

(

void

)

Get APB2 prescaler.

Reference Manual to LL API cross reference:

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 3307 of file stm32f4xx_ll_rcc.h.

Referenced by RCC_GetPCLK2ClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetSysClkSource

(

void

)

Get the system clock source.

Reference Manual to LL API cross reference:

CFGR SWS LL_RCC_GetSysClkSource

Return values:

Returned

value can be one of the following values: LL_RCC_SYS_CLKSOURCE_STATUS_HSI LL_RCC_SYS_CLKSOURCE_STATUS_HSE LL_RCC_SYS_CLKSOURCE_STATUS_PLL LL_RCC_SYS_CLKSOURCE_STATUS_PLLR (*) (*) value not defined in all devices.

Definition at line 3206 of file stm32f4xx_ll_rcc.h.

Referenced by RCC_GetSystemClockFreq(), and UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetAHBPrescaler

(

uint32_t

Prescaler

)

Set AHB prescaler.

Reference Manual to LL API cross reference:

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 3226 of file stm32f4xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetAPB1Prescaler

(

uint32_t

Prescaler

)

Set APB1 prescaler.

Reference Manual to LL API cross reference:

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 3242 of file stm32f4xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetAPB2Prescaler

(

uint32_t

Prescaler

)

Set APB2 prescaler.

Reference Manual to LL API cross reference:

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 3258 of file stm32f4xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetSysClkSource

(

uint32_t

Source

)

Configure the system clock source.

Reference Manual to LL API cross reference:

CFGR SW LL_RCC_SetSysClkSource

Parameters:

Source

This parameter can be one of the following values: LL_RCC_SYS_CLKSOURCE_HSI LL_RCC_SYS_CLKSOURCE_HSE LL_RCC_SYS_CLKSOURCE_PLL LL_RCC_SYS_CLKSOURCE_PLLR (*) (*) value not defined in all devices.

Return values:

None

Definition at line 3190 of file stm32f4xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().