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MSP430FR2033初始化代码关闭看门狗,有时上电后没有反应

Other Parts Discussed in Thread: MSP430FR2033

您好:

         我使用MSP430FR2033设计了一款产品,使用电池供电。在初始化代码里关闭了看门狗,初始化代码最后一句是点亮一个LED灯。现在出现一个现象:

        有时我插拔电池后出现LED灯常亮,但不正常工作的情况,在这种情况下就算多次插拔也不一定会正常,但如果我按复位键,就可以正常工作。请问这是硬件还是软件的原因,有什么解决办法或者查找思路?