Functions
__STATIC_INLINE void	LL_WWDG_Enable (WWDG_TypeDef *WWDGx)
	Enable Window Watchdog.
__STATIC_INLINE uint32_t	LL_WWDG_IsEnabled (WWDG_TypeDef *WWDGx)
	Checks if Window Watchdog is enabled.
__STATIC_INLINE void	LL_WWDG_SetCounter (WWDG_TypeDef *WWDGx, uint32_t Counter)
	Set the Watchdog counter value to provided value (7-bits T[6:0])
__STATIC_INLINE uint32_t	LL_WWDG_GetCounter (WWDG_TypeDef *WWDGx)
	Return current Watchdog Counter Value (7 bits counter value)
__STATIC_INLINE void	LL_WWDG_SetPrescaler (WWDG_TypeDef *WWDGx, uint32_t Prescaler)
	Set the time base of the prescaler (WDGTB).
__STATIC_INLINE uint32_t	LL_WWDG_GetPrescaler (WWDG_TypeDef *WWDGx)
	Return current Watchdog Prescaler Value.
__STATIC_INLINE void	LL_WWDG_SetWindow (WWDG_TypeDef *WWDGx, uint32_t Window)
	Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).
__STATIC_INLINE uint32_t	LL_WWDG_GetWindow (WWDG_TypeDef *WWDGx)
	Return current Watchdog Window Value (7 bits value)

Function Documentation

__STATIC_INLINE void LL_WWDG_Enable ( WWDG_TypeDef * WWDGx )

Enable Window Watchdog.

The watchdog is always disabled after a reset.

Note:: It is enabled by setting the WDGA bit in the WWDG_CR register, then it cannot be disabled again except by a reset. This bit is set by software and only cleared by hardware after a reset. When WDGA = 1, the watchdog can generate a reset.

Reference Manual to LL API cross reference:: CR WDGA LL_WWDG_Enable

Parameters:

WWDGx WWDG Instance

Return values:

None

Definition at line 124 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE uint32_t LL_WWDG_GetCounter ( WWDG_TypeDef * WWDGx )

Return current Watchdog Counter Value (7 bits counter value)

Reference Manual to LL API cross reference:: CR T LL_WWDG_GetCounter

Parameters:

WWDGx WWDG Instance

Return values:

7	bit Watchdog Counter value

Definition at line 162 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE uint32_t LL_WWDG_GetPrescaler ( WWDG_TypeDef * WWDGx )

Return current Watchdog Prescaler Value.

Reference Manual to LL API cross reference:: CFR WDGTB LL_WWDG_GetPrescaler

Parameters:

WWDGx WWDG Instance

Return values:

Returned

value can be one of the following values:

Definition at line 195 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE uint32_t LL_WWDG_GetWindow ( WWDG_TypeDef * WWDGx )

Return current Watchdog Window Value (7 bits value)

Reference Manual to LL API cross reference:: CFR W LL_WWDG_GetWindow

Parameters:

WWDGx WWDG Instance

Return values:

7	bit Watchdog Window value

Definition at line 227 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE uint32_t LL_WWDG_IsEnabled ( WWDG_TypeDef * WWDGx )

Checks if Window Watchdog is enabled.

Reference Manual to LL API cross reference:: CR WDGA LL_WWDG_IsEnabled

Parameters:

WWDGx WWDG Instance

Return values:

State of bit (1 or 0).

Definition at line 135 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE void LL_WWDG_SetCounter	(	WWDG_TypeDef *	WWDGx,
		uint32_t	Counter
	)

Set the Watchdog counter value to provided value (7-bits T[6:0])

Note:: When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset This counter is decremented every (4096 x 2expWDGTB) PCLK cycles A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared) Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled)

Reference Manual to LL API cross reference:: CR T LL_WWDG_SetCounter

Parameters:

WWDGx	WWDG Instance
Counter	0..0x7F (7 bit counter value)

Return values:

None

Definition at line 151 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE void LL_WWDG_SetPrescaler	(	WWDG_TypeDef *	WWDGx,
		uint32_t	Prescaler
	)

Set the time base of the prescaler (WDGTB).

Note:: Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter is decremented every (4096 x 2expWDGTB) PCLK cycles

Reference Manual to LL API cross reference:: CFR WDGTB LL_WWDG_SetPrescaler

Parameters:

WWDGx	WWDG Instance
Prescaler	This parameter can be one of the following values: LL_WWDG_PRESCALER_1 LL_WWDG_PRESCALER_2 LL_WWDG_PRESCALER_4 LL_WWDG_PRESCALER_8

Return values:

None

Definition at line 180 of file stm32f4xx_ll_wwdg.h.

__STATIC_INLINE void LL_WWDG_SetWindow	(	WWDG_TypeDef *	WWDGx,
		uint32_t	Window
	)

Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).

Note:: This window value defines when write in the WWDG_CR register to program Watchdog counter is allowed. Watchdog counter value update must occur only when the counter value is lower than the Watchdog window register value. Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value (in the control register) is refreshed before the downcounter has reached the watchdog window register value. Physically is possible to set the Window lower then 0x40 but it is not recommended. To generate an immediate reset, it is possible to set the Counter lower than 0x40.

Reference Manual to LL API cross reference:: CFR W LL_WWDG_SetWindow

Parameters:

WWDGx	WWDG Instance
Window	0x00..0x7F (7 bit Window value)

Return values:

None

Definition at line 216 of file stm32f4xx_ll_wwdg.h.

Functions

Function Documentation