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求救?430板子指示灯没有亮

Other Parts Discussed in Thread: MSP430F5529

我通过原装usb线将msp430f5529板子连接到电脑上,刚开始指示灯有亮,后来我松动了一下usb接口,结果没有亮了,拔下来重新接上后,指示灯还是没有亮,是不是烧了啊?还有救吗?