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关于TSW14J56EVM 无法usb无法识别

Other Parts Discussed in Thread: TSW14J56EVM

TSW14J56EVM无论是上电后,还是上电前将usb线与电脑连接,设备管理器都无法找到该设备,打开HSDC软件显示没有设备。但是换成新采购的同样的开发板,用同样的线和与同一台电脑连接,设备管理器能找到该硬件设备。请问这是什么情况,那块主板还能恢复吗,如何恢复?