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_SetSysWakeUpClkSource (uint32_t Source)
	Configure the system wakeup clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetSysWakeUpClkSource (void)
	Get the system wakeup clock source.
__STATIC_INLINE void	LL_RCC_SetKerWakeUpClkSource (uint32_t Source)
	Configure the kernel wakeup clock source.
__STATIC_INLINE uint32_t	LL_RCC_GetKerWakeUpClkSource (void)
	Get the kernel wakeup clock source.
__STATIC_INLINE void	LL_RCC_SetSysPrescaler (uint32_t Prescaler)
	Set System prescaler.
__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 void	LL_RCC_SetAPB3Prescaler (uint32_t Prescaler)
	Set APB3 prescaler.
__STATIC_INLINE void	LL_RCC_SetAPB4Prescaler (uint32_t Prescaler)
	Set APB4 prescaler.
__STATIC_INLINE uint32_t	LL_RCC_GetSysPrescaler (void)
	Get System 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.
__STATIC_INLINE uint32_t	LL_RCC_GetAPB3Prescaler (void)
	Get APB3 prescaler.
__STATIC_INLINE uint32_t	LL_RCC_GetAPB4Prescaler (void)
	Get APB4 prescaler.

---

Function Documentation

__STATIC_INLINE uint32_t LL_RCC_GetAHBPrescaler

(

void

)

Get AHB prescaler.

Reference Manual to LL API cross reference:

D1CFGR/ CDCFGR1 HPRE LL_RCC_GetAHBPrescaler

Return values:

Returned

value can be one of the following values: LL_RCC_AHB_DIV_1 LL_RCC_AHB_DIV_2 LL_RCC_AHB_DIV_4 LL_RCC_AHB_DIV_8 LL_RCC_AHB_DIV_16 LL_RCC_AHB_DIV_64 LL_RCC_AHB_DIV_128 LL_RCC_AHB_DIV_256 LL_RCC_AHB_DIV_512

Definition at line 2644 of file stm32h7xx_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:

D2CFGR/CDCFGR2 D2PPRE1/CDPPRE1 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 2663 of file stm32h7xx_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:

D2CFGR/CDCFGR2 D2PPRE2/CDPPRE2 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 2682 of file stm32h7xx_ll_rcc.h.

Referenced by RCC_GetPCLK2ClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetAPB3Prescaler

(

void

)

Get APB3 prescaler.

Reference Manual to LL API cross reference:

D1CFGR/CDCFGR1 D1PPRE/CDPPRE LL_RCC_GetAPB3Prescaler

Return values:

Returned

value can be one of the following values: LL_RCC_APB3_DIV_1 LL_RCC_APB3_DIV_2 LL_RCC_APB3_DIV_4 LL_RCC_APB3_DIV_8 LL_RCC_APB3_DIV_16

Definition at line 2701 of file stm32h7xx_ll_rcc.h.

Referenced by RCC_GetPCLK3ClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetAPB4Prescaler

(

void

)

Get APB4 prescaler.

Reference Manual to LL API cross reference:

D3CFGR/SRDCFGR D3PPRE/SRDPPRE LL_RCC_GetAPB4Prescaler

Return values:

Returned

value can be one of the following values: LL_RCC_APB4_DIV_1 LL_RCC_APB4_DIV_2 LL_RCC_APB4_DIV_4 LL_RCC_APB4_DIV_8 LL_RCC_APB4_DIV_16

Definition at line 2720 of file stm32h7xx_ll_rcc.h.

Referenced by RCC_GetPCLK4ClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetKerWakeUpClkSource

(

void

)

Get the kernel wakeup clock source.

Reference Manual to LL API cross reference:

CFGR STOPKERWUCK LL_RCC_GetKerWakeUpClkSource

Return values:

Returned

value can be one of the following values: LL_RCC_KERWAKEUP_CLKSOURCE_HSI LL_RCC_KERWAKEUP_CLKSOURCE_CSI

Definition at line 2474 of file stm32h7xx_ll_rcc.h.

__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_CSI LL_RCC_SYS_CLKSOURCE_STATUS_HSE LL_RCC_SYS_CLKSOURCE_STATUS_PLL1

Definition at line 2424 of file stm32h7xx_ll_rcc.h.

Referenced by RCC_GetSystemClockFreq(), and UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE uint32_t LL_RCC_GetSysPrescaler

(

void

)

Get System prescaler.

Reference Manual to LL API cross reference:

D1CFGR/CDCFGR1 D1CPRE/CDCPRE LL_RCC_GetSysPrescaler

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 2621 of file stm32h7xx_ll_rcc.h.

Referenced by LL_RCC_GetDFSDMClockFreq(), LL_RCC_GetFMCClockFreq(), LL_RCC_GetI2CClockFreq(), LL_RCC_GetLPTIMClockFreq(), LL_RCC_GetLPUARTClockFreq(), LL_RCC_GetOSPIClockFreq(), LL_RCC_GetSPIClockFreq(), LL_RCC_GetSWPClockFreq(), and LL_RCC_GetUSARTClockFreq().

__STATIC_INLINE uint32_t LL_RCC_GetSysWakeUpClkSource

(

void

)

Get the system wakeup clock source.

Reference Manual to LL API cross reference:

CFGR STOPWUCK LL_RCC_GetSysWakeUpClkSource

Return values:

Returned

value can be one of the following values: LL_RCC_SYSWAKEUP_CLKSOURCE_HSI LL_RCC_SYSWAKEUP_CLKSOURCE_CSI

Definition at line 2449 of file stm32h7xx_ll_rcc.h.

__STATIC_INLINE void LL_RCC_SetAHBPrescaler

(

uint32_t

Prescaler

)

Set AHB prescaler.

Reference Manual to LL API cross reference:

D1CFGR/CDCFGR1 HPRE LL_RCC_SetAHBPrescaler

Parameters:

Prescaler

This parameter can be one of the following values: LL_RCC_AHB_DIV_1 LL_RCC_AHB_DIV_2 LL_RCC_AHB_DIV_4 LL_RCC_AHB_DIV_8 LL_RCC_AHB_DIV_16 LL_RCC_AHB_DIV_64 LL_RCC_AHB_DIV_128 LL_RCC_AHB_DIV_256 LL_RCC_AHB_DIV_512

Return values:

None

Definition at line 2518 of file stm32h7xx_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:

D2CFGR/CDCFGR2 D2PPRE1/CDPPRE1 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 2538 of file stm32h7xx_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:

D2CFGR/CDCFGR2 D2PPRE2/CDPPRE2 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 2558 of file stm32h7xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetAPB3Prescaler

(

uint32_t

Prescaler

)

Set APB3 prescaler.

Reference Manual to LL API cross reference:

D1CFGR/CDCFGR1 D1PPRE/CDPPRE LL_RCC_SetAPB3Prescaler

Parameters:

Prescaler

This parameter can be one of the following values: LL_RCC_APB3_DIV_1 LL_RCC_APB3_DIV_2 LL_RCC_APB3_DIV_4 LL_RCC_APB3_DIV_8 LL_RCC_APB3_DIV_16

Return values:

None

Definition at line 2578 of file stm32h7xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetAPB4Prescaler

(

uint32_t

Prescaler

)

Set APB4 prescaler.

Reference Manual to LL API cross reference:

D3CFGR/SRDCFGR D3PPRE/SRDPPRE LL_RCC_SetAPB4Prescaler

Parameters:

Prescaler

This parameter can be one of the following values: LL_RCC_APB4_DIV_1 LL_RCC_APB4_DIV_2 LL_RCC_APB4_DIV_4 LL_RCC_APB4_DIV_8 LL_RCC_APB4_DIV_16

Return values:

None

Definition at line 2598 of file stm32h7xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetKerWakeUpClkSource

(

uint32_t

Source

)

Configure the kernel wakeup clock source.

Reference Manual to LL API cross reference:

CFGR STOPKERWUCK LL_RCC_SetKerWakeUpClkSource

Parameters:

Source

This parameter can be one of the following values: LL_RCC_KERWAKEUP_CLKSOURCE_HSI LL_RCC_KERWAKEUP_CLKSOURCE_CSI

Return values:

None

Definition at line 2462 of file stm32h7xx_ll_rcc.h.

__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_CSI LL_RCC_SYS_CLKSOURCE_HSE LL_RCC_SYS_CLKSOURCE_PLL1

Return values:

None

Definition at line 2410 of file stm32h7xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetSysPrescaler

(

uint32_t

Prescaler

)

Set System prescaler.

Reference Manual to LL API cross reference:

D1CFGR/CDCFGR1 D1CPRE/CDCPRE LL_RCC_SetSysPrescaler

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 2494 of file stm32h7xx_ll_rcc.h.

Referenced by UTILS_EnablePLLAndSwitchSystem().

__STATIC_INLINE void LL_RCC_SetSysWakeUpClkSource

(

uint32_t

Source

)

Configure the system wakeup clock source.

Reference Manual to LL API cross reference:

CFGR STOPWUCK LL_RCC_SetSysWakeUpClkSource

Parameters:

Source

This parameter can be one of the following values: LL_RCC_SYSWAKEUP_CLKSOURCE_HSI LL_RCC_SYSWAKEUP_CLKSOURCE_CSI

Return values:

None

Definition at line 2437 of file stm32h7xx_ll_rcc.h.