ST STM32F2 User Manual

HAL WWDG Generic Driver
UM1940
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DocID028236 Rev 2
HAL_WWDG_IRQHandler
Function name
void HAL_WWDG_IRQHandler (WWDG_HandleTypeDef *
hwwdg)
Function description
Handle WWDG interrupt request.
Parameters
hwwdg: pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
None:
Notes
The Early Wakeup Interrupt (EWI) can be used if specific
safety operations or data logging must be performed before
the actual reset is generated. The EWI interrupt is enabled by
calling HAL_WWDG_Init function with EWIMode set to
WWDG_EWI_ENABLE. When the downcounter reaches the
value 0x40, and EWI interrupt is generated and the
corresponding Interrupt Service Routine (ISR) can be used to
trigger specific actions (such as communications or data
logging), before resetting the device.
HAL_WWDG_EarlyWakeupCallback
Function name
void HAL_WWDG_EarlyWakeupCallback
(WWDG_HandleTypeDef * hwwdg)
Function description
WWDG Early Wakeup callback.
Parameters
hwwdg: : pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
None:
49.3 WWDG Firmware driver defines
49.3.1 WWDG
WWDG Early Wakeup Interrupt Mode
WWDG_EWI_DISABLE
EWI Disable
WWDG_EWI_ENABLE
EWI Enable
WWDG Exported Macros
__HAL_WWDG_ENABLE
Description:
Enables the WWDG peripheral.
Parameters:
__HANDLE__: WWDG handle
Return value:
None
__HAL_WWDG_ENABLE_IT
Description:
Enables the WWDG early wakeup interrupt.

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English