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USB Interface Adapter适配器PC找不到驱动,并且适配器的绿灯也不亮,无法使用

Other Parts Discussed in Thread: UCD9244

各位好:

最近买了一个USB Interface Adapter适配器用来配置UCD9244,前几天都还很好用。这两天突然就不能使用了,现象是插上USB线缆后,适配器的绿灯没亮,并且PC也无法找到适配器,显示是”未知设备“。请问这是怎么回事啊?

希望各位帮忙

谢谢了。