This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
我做了一个TUSB2077A的评估实验板，1带7口的自电源的HUB,电源管理用TPS2044B,采用6MHZ晶振电路，现在主机识别为低速USB HUB,只能实现低速传输功能，不知道是什么问题。我的邮箱是hlqin_st@sina.com QQ:439646899
7个下行口都只能识别低速设备？USB传输线多长？
这个问题我已经有解答了。TUSB2077A 和TUSB2046B资料中提示仅能实现USB2.0 Full-Speed, and Low-Speed(12MHz)。谢谢了
