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首先5m下的cable不用TUSB211也没问题。
其次,将延长线增加到8米之后,是这样的一个搭建是吗?
HOST <---4m cable----> TUSB211 <---4m_cable----> Slave
想问下EQ level设置的是多少?demo板的话,可通过SW1设置不同的EQ等级,不同EQ设置下看眼图是否有变化?
要看一下你传输的是什么数据率的数据
The device has a patent-pending design which is agnostic to USB Low Speed (LS) and Full Speed (FS) signals. LS and FS signal characteristics are
unaffected by the TUSB211. HS signals are compensated.