WWDG不能进中断

爱学习的猫 · 发表于 2017-8-1 22:21:37

NVIC_InitTypeDef NVIC_InitStructure;
LED_Init();
Key_Init();
RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG,ENABLE);
WWDG_SetPrescaler(WWDG_Prescaler_8); // 1098hz
WWDG_SetWindowValue(0x5F);
WWDG_ClearFlag();
WWDG_EnableIT();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = WWDG_IRQn;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_Init(&NVIC_InitStructure);
WWDG_Enable(0x7F);
程序没办法进中断一直复位，但是看门狗使能那一句改个位置就可以了，原因没找到，求学霸解答

NVIC_InitTypeDef NVIC_InitStructure;

LED_Init();

Key_Init();

RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG,ENABLE);

WWDG_SetPrescaler(WWDG_Prescaler_8); // 1098hz

WWDG_SetWindowValue(0x5F);

WWDG_Enable(0x7F);

WWDG_ClearFlag();

WWDG_EnableIT();

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

NVIC_InitStructure.NVIC_IRQChannel = WWDG_IRQn;

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;