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1. 设计:
Romley-EP 2S平台,PCH(C602J) 的PCIE信号经PCIE 2.0 redriver拉到前面板的USB3.0.
2. 问题:
测试发现DOS下2个USB3.0 port可以正常使用。
进入OS后,先安装chipset driver,然后安装USB3.0 controller driver (Texas_Instruments_xHCI_Driver_v1.16.3_WHQL),但是驱动不能成功加载,有黄色感叹号出现。
卸载并重新安装驱动,在Device Manager下发现"Texas Instruments XHCI Controller”上依然有黄色感叹号出现(可参考附图),同时看不到"Texas Instruments USB Root Hub"项。
请帮忙判断分析可能是哪方面原因?多谢!