F407的窗口看们狗，在上电时会进入一次中断，不知道大家有没有遇见过
F407的窗口看门狗，在上电时会进入一次中断，不知道大家有没有遇见过MX配置的初始化代码
void MX_WWDG_Init(void)
{
/* USER CODE BEGIN WWDG_Init 0 */
/* USER CODE END WWDG_Init 0 */
/* USER CODE BEGIN WWDG_Init 1 */
/* USER CODE END WWDG_Init 1 */
hwwdg.Instance = WWDG;
hwwdg.Init.Prescaler = WWDG_PRESCALER_8;
hwwdg.Init.Window = 0x7F;
hwwdg.Init.Counter = 0x7F;
hwwdg.Init.EWIMode = WWDG_EWI_ENABLE;
if (HAL_WWDG_Init(&hwwdg) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN WWDG_Init 2 */
__HAL_WWDG_CLEAR_FLAG(&hwwdg, WWDG_FLAG_EWIF);
/* USER CODE END WWDG_Init 2 */
}
void HAL_WWDG_MspInit(WWDG_HandleTypeDef* wwdgHandle)
{
if(wwdgHandle->Instance==WWDG)
{
/* USER CODE BEGIN WWDG_MspInit 0 */
/* USER CODE END WWDG_MspInit 0 */
/* WWDG clock enable */
__HAL_RCC_WWDG_CLK_ENABLE();
/* WWDG interrupt Init */
HAL_NVIC_SetPriority(WWDG_IRQn, 3, 0);
HAL_NVIC_EnableIRQ(WWDG_IRQn);
/* USER CODE BEGIN WWDG_MspInit 1 */
/* USER CODE END WWDG_MspInit 1 */
}
}
void WWDG_IRQHandler(void)
{
/* USER CODE BEGIN WWDG_IRQn 0 */
/* USER CODE END WWDG_IRQn 0 */
void WWDG_IRQHandler(void)
{
/* USER CODE BEGIN WWDG_IRQn 0 */
/* USER CODE END WWDG_IRQn 0 */
HAL_WWDG_Refresh(&hwwdg); //ι¹·
HAL_WWDG_IRQHandler(&hwwdg);
HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_14);
HAL_NVIC_SystemReset();
/* USER CODE BEGIN WWDG_IRQn 1 */
/* USER CODE END WWDG_IRQn 1 */
} CubeMX里面的WWDG例子，你测试下是否也有这个问题
STM32Cube_FW_F4_V1.27.0\Projects\STM32F429ZI-Nucleo\Examples\WWDG
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