关于stubs是怎样的走线? , q( }1 ?) k: ^* s+ s' L7 v• Avoid stubs on high-speed USB signals, as stubs will cause signal reflections and ; F. }; ^2 `0 l7 v, r5 u a8 Faffect signal quality. If a stub is unavoidable in the design, the total of all the stubs * Y; v3 X( r! W6 w6 h" B5 Son a particular line should not be greater than 200 mils. 9 Y# k' ]. f' {) j# Z& H3 q请翻译,谢谢!