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判断单片机是否损坏

Other Parts Discussed in Thread: MSP430F5529

MSP430F5529在没有通电的情况下,测得单片机有个IO口引脚直接接地了,有两个相邻的IO口引脚直接连在一起了,但是其他都还好,还能用。单片机是不是已经损坏了