Interrupts and flags management functions

Interrupts and flags management functions. More...

Functions
void	RCC_ITConfig (uint8_t RCC_IT, FunctionalState NewState)
	Enables or disables the specified RCC interrupts. More...
FlagStatus	RCC_GetFlagStatus (uint8_t RCC_FLAG)
	Checks whether the specified RCC flag is set or not. More...
void	RCC_ClearFlag (void)
	Clears the RCC reset flags. The reset flags are: RCC_FLAG_PINRST, RCC_FLAG_PORRST, RCC_FLAG_SFTRST, RCC_FLAG_IWDGRST, RCC_FLAG_WWDGRST, RCC_FLAG_LPWRRST. More...
ITStatus	RCC_GetITStatus (uint8_t RCC_IT)
	Checks whether the specified RCC interrupt has occurred or not. More...
void	RCC_ClearITPendingBit (uint8_t RCC_IT)
	Clears the RCC's interrupt pending bits. More...

Detailed Description

Interrupts and flags management functions.

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                   Interrupts and flags management functions
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Function Documentation

void RCC_ClearFlag

(

void

)

Clears the RCC reset flags. The reset flags are: RCC_FLAG_PINRST, RCC_FLAG_PORRST, RCC_FLAG_SFTRST, RCC_FLAG_IWDGRST, RCC_FLAG_WWDGRST, RCC_FLAG_LPWRRST.

Parameters

None

Return values

None

void RCC_ClearITPendingBit

(

uint8_t

RCC_IT

)

Clears the RCC's interrupt pending bits.

Parameters

RCC_IT,:

specifies the interrupt pending bit to clear. This parameter can be any combination of the following values: RCC_IT_LSIRDY: LSI ready interrupt RCC_IT_LSERDY: LSE ready interrupt RCC_IT_HSIRDY: HSI ready interrupt RCC_IT_HSERDY: HSE ready interrupt RCC_IT_PLLRDY: main PLL ready interrupt RCC_IT_PLLI2SRDY: PLLI2S ready interrupt RCC_IT_CSS: Clock Security System interrupt

Return values

None

FlagStatus RCC_GetFlagStatus

(

uint8_t

RCC_FLAG

)

Checks whether the specified RCC flag is set or not.

Parameters

RCC_FLAG,:

specifies the flag to check. This parameter can be one of the following values: RCC_FLAG_HSIRDY: HSI oscillator clock ready RCC_FLAG_HSERDY: HSE oscillator clock ready RCC_FLAG_PLLRDY: main PLL clock ready RCC_FLAG_PLLI2SRDY: PLLI2S clock ready RCC_FLAG_LSERDY: LSE oscillator clock ready RCC_FLAG_LSIRDY: LSI oscillator clock ready RCC_FLAG_BORRST: POR/PDR or BOR reset RCC_FLAG_PINRST: Pin reset RCC_FLAG_PORRST: POR/PDR reset RCC_FLAG_SFTRST: Software reset RCC_FLAG_IWDGRST: Independent Watchdog reset RCC_FLAG_WWDGRST: Window Watchdog reset RCC_FLAG_LPWRRST: Low Power reset

Return values

The	new state of RCC_FLAG (SET or RESET).

ITStatus RCC_GetITStatus

(

uint8_t

RCC_IT

)

Checks whether the specified RCC interrupt has occurred or not.

Parameters

RCC_IT,:

specifies the RCC interrupt source to check. This parameter can be one of the following values: RCC_IT_LSIRDY: LSI ready interrupt RCC_IT_LSERDY: LSE ready interrupt RCC_IT_HSIRDY: HSI ready interrupt RCC_IT_HSERDY: HSE ready interrupt RCC_IT_PLLRDY: main PLL ready interrupt RCC_IT_PLLI2SRDY: PLLI2S ready interrupt RCC_IT_CSS: Clock Security System interrupt

Return values

The	new state of RCC_IT (SET or RESET).

void RCC_ITConfig	(	uint8_t	RCC_IT,
		FunctionalState	NewState
	)

Enables or disables the specified RCC interrupts.

Parameters

RCC_IT,:	specifies the RCC interrupt sources to be enabled or disabled. This parameter can be any combination of the following values: RCC_IT_LSIRDY: LSI ready interrupt RCC_IT_LSERDY: LSE ready interrupt RCC_IT_HSIRDY: HSI ready interrupt RCC_IT_HSERDY: HSE ready interrupt RCC_IT_PLLRDY: main PLL ready interrupt RCC_IT_PLLI2SRDY: PLLI2S ready interrupt
NewState,:	new state of the specified RCC interrupts. This parameter can be: ENABLE or DISABLE.

Return values

None