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am3359的 usb0通过USB线连接PC端,装不上usb驱动,没有发现到端口号,用不到SecureCRT打印信息

Other Parts Discussed in Thread: AM3359

am3359的usb0通过USB线连接PC端,装不上usb驱动,在设备管理那里只显示 黄色感叹号EMV-SK\DXS100V2,没有端口号,用不到SecureCRT打印信息。

请问是我的USB线的问题,还是没有安装相应的USB驱动?如果是后者在哪里找USB的驱动?