进SigXplorer时出现警告: 9 k4 u* E1 e8 E3 `No reference plane is found for the trace to be extracted. 0 @2 }: {* K( u. e/ q( K9 kThe trace is being extracted as Microstripline just for topology viewing 3 x+ e! f! l7 m- E6 A4 `1 e# Z4 M% ]6 F: W
俺的是六层板,SGSSPS,. U5 r$ m* X1 b7 m6 ]9 a- q/ h