ST STM32F2 User Manual

LL RCC Generic Driver
UM1940
1016/1371
DocID028236 Rev 2
LL_RCC_GetSysClkSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetSysClkSource (void )
Function description
Get the system clock source.
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
Reference Manual to
LL API cross
reference:
CFGR SWS LL_RCC_GetSysClkSource
LL_RCC_SetAHBPrescaler
Function name
__STATIC_INLINE void LL_RCC_SetAHBPrescaler (uint32_t
Prescaler)
Function description
Set AHB prescaler.
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:
Reference Manual to
LL API cross
reference:
CFGR HPRE LL_RCC_SetAHBPrescaler
LL_RCC_SetAPB1Prescaler
Function name
__STATIC_INLINE void LL_RCC_SetAPB1Prescaler (uint32_t
Prescaler)
Function description
Set APB1 prescaler.
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:
Reference Manual to
LL API cross
CFGR PPRE1 LL_RCC_SetAPB1Prescaler

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English