我两个工程，一个调试串口，另外一个是调试i2c,串口打开了接收中断的话，当串口上有数据要接收时，程序就hard fault,中断产生时，进行任务切换，就挂了,还没有运行到中断服务程序.
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = EVAL_COM1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
什么情况？ |
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