HAL WWDG constants migration ¶

This section provides information about the HAL WWDG constants migration .

WWDG EWI constants ¶

HAL1	HAL2
WWDG_IT_EWI	Removed; use `LL_WWDG_EnableIT_EWKUP` instead.
WWDG_FLAG_EWIF	Removed; use `LL_WWDG_IsActiveFlag_EWKUP` instead.
WWDG_EWI_ENABLE	Removed; use `LL_WWDG_IsEnabledIT_EWKUP` instead.
WWDG_EWI_DISABLE	Removed; when early wakeup is not required, the early_wakeup_time parameter of `HAL_WWDG_Start` must be set to 0.

WWDG prescaler constants ¶

In HAL2, these constants have been removed and keep it in LL file.

HAL1	HAL2
#define WWDG_PRESCALER_1 #define WWDG_PRESCALER_2 #define WWDG_PRESCALER_4 #define WWDG_PRESCALER_8 #define WWDG_PRESCALER_16 #define WWDG_PRESCALER_32 #define WWDG_PRESCALER_64 #define WWDG_PRESCALER_128	These constants have been removed. In HAL2, the user no longer provides the WWDG counter, prescaler, and window register values directly. Instead, the user specifies the maximum and minimum time in ms, µs, or s, and the HAL WWDG driver computes the corresponding prescaler, counter, and window register values internally. If direct register-level control of the WWDG is required, the LL driver can be used.

HAL1

HAL2

                #define WWDG_PRESCALER_1
#define WWDG_PRESCALER_2
#define WWDG_PRESCALER_4
#define WWDG_PRESCALER_8
#define WWDG_PRESCALER_16
#define WWDG_PRESCALER_32
#define WWDG_PRESCALER_64
#define WWDG_PRESCALER_128

               

These constants have been removed.

In HAL2, the user no longer provides the WWDG counter, prescaler, and window register values directly. Instead, the user specifies the maximum and minimum time in ms, µs, or s, and the HAL WWDG driver computes the corresponding prescaler, counter, and window register values internally.

If direct register-level control of the WWDG is required, the LL driver can be used.

Related concept:

Define statements and enumerations redirected to LL equivalents