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使用FR6972做产品的脉冲群测试，总会出现复位现象。除了检测电源电压的波动情况满足50mV/us之外。请问另外可以通过读哪些寄存器什么的来判断出是哪种复位么？
从中断标志位可以读出哪种原因引起的复位么？
如果不能，请问有哪些情况方法可以检测。
