/**
* @brief Handle WWDG interrupt request.
* @note 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.
* @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
* the configuration information for the specified WWDG module.
* @retval None
*/
void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg)
{
/* Check if Early Wakeup Interrupt is enable */
if(__HAL_WWDG_GET_IT_SOURCE(hwwdg, WWDG_IT_EWI) != RESET)
{
/* Check if WWDG Early Wakeup Interrupt occurred */
if(__HAL_WWDG_GET_FLAG(hwwdg, WWDG_FLAG_EWIF) != RESET)
{
/* Clear the WWDG Early Wakeup flag */
__HAL_WWDG_CLEAR_FLAG(hwwdg, WWDG_FLAG_EWIF);
/* Early Wakeup callback */
HAL_WWDG_EarlyWakeupCallback(hwwdg);
}
}
}
/**
* @brief Handles WWDG interrupt request.
* @note 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 using __HAL_WWDG_ENABLE_IT() macro.
* 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.
* @param hwwdg: WWDG handle
* @retval None
*/
void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg)
{
/* WWDG Early Wakeup Interrupt occurred */
if(__HAL_WWDG_GET_FLAG(hwwdg, WWDG_FLAG_EWIF) != RESET)
{
/* Early Wakeup callback */
HAL_WWDG_WakeupCallback(hwwdg);
/* Change WWDG peripheral state */
hwwdg->State = HAL_WWDG_STATE_READY;
/* Clear the WWDG Data Ready flag */
__HAL_WWDG_CLEAR_FLAG(hwwdg, WWDG_FLAG_EWIF);
/* Process Unlocked */
__HAL_UNLOCK(hwwdg);
}
}
