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AM57X外接USBHUB设备识别问题



我用AM57X连接了两个USB PHY芯片,分别时USB3.0的PHY芯片和USB2.0的PHY芯片,发现在同时接入两个USB2.0和两个USB3.0的U盘时,偶尔会有其中一个不能识别到。不识别时,只能识别USB块,而不能识别分区。这是什么情况呢?

注:USB2.0用的PHY是TUSB4041IPAP 、USB3.0用的TUSB8020BIPHP