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[Cadence Sigrity] Trace No Reference

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1#
发表于 2013-11-12 14:17 | 只看该作者 |只看大图 回帖奖励 |倒序浏览 |阅读模式

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Trace No Reference,为什么我的板子上有那么多( M& p' c" n7 Y( z
WARNING [Trace No Reference]: Trace11393:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.
8 O. e0 h% o0 _" k) E) t) o$ Q% iWARNING [Trace No Reference]: Trace11536:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.
' A, `( W5 h1 E9 z% OWARNING [Trace No Reference]: Trace11725:RAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.% q1 c, ?. p/ k2 L+ j! b. n
WARNING [Trace No Reference]: Trace11731::DRAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.
* c& H8 E$ C0 S' fWARNING [Trace No Reference]: Trace11761::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.4 G9 h. \' R' j+ _, [
WARNING [Trace No Reference]: Trace11868::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
4 i; N4 G* o. r4 `+ P! B$ xWARNING [Trace No Reference]: Trace232 There is no plane or patch (top or bottom) covers the trace segment.
2 U- w2 P; C3 }% D5 l8 vWARNING [Trace No Reference]: Trace233 There is no plane or patch (top or bottom) covers the trace segment.- i, Z. ^1 J+ @
WARNING [Trace No Reference]: Trace4303::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.7 v0 q2 a6 `, n# {( J* `  F0 Q  c
WARNING [Trace No Reference]: Trace4304::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.9 D& y% p0 l) {( Q4 _8 l4 _
WARNING [Trace No Reference]: Trace4464::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.: ]$ s7 D8 r1 G) U% u/ V  ?
WARNING [Trace No Reference]: Trace4721::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.% I8 `: |) _5 X% G# g
WARNING [Trace No Reference]: Trace4888::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.3 `; a2 G% M/ N( |5 t
WARNING [Trace No Reference]: Trace4969::VDD_COREA12 There is no plane or patch (top or bottom) covers the trace segment.
; N) H! h) R+ p2 U! p( h* M+ L. IWARNING [Trace No Reference]: Trace5235::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.. C1 g0 N7 S  j1 `: L) V+ o0 B
WARNING [Trace No Reference]: Trace5239::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
1 l$ q3 K& X0 _4 F( N* a2 ]& ^WARNING [Trace No Reference]: Trace5476::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
2 o/ ?1 V1 ~; V7 c6 e' u5 B( K1 f3 lWARNING [Trace No Reference]: Trace5521::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
* i2 F+ h4 u# V) vWARNING [Trace No Reference]: Trace5872::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
0 K; y' l: u- v" B% RWARNING [Trace No Reference]: Trace5873::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
/ v) j5 q3 q! G$ A( XWARNING [Trace No Reference]: Trace5953::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
: T+ U7 C$ ~% y9 N; n, bWARNING [Trace No Reference]: Trace5954::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
- Q& s$ ]4 t9 {3 W- d4 w+ IWARNING [Trace No Reference]: Trace5955::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
7 c* x4 d. k# v( u  K2 c$ }% U" OWARNING [Trace No Reference]: Trace5956::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
3 c; r  k* D- Y$ m/ H* bWARNING [Trace No Reference]: Trace6097::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
, C' K/ V& o# [9 w0 @! z" }WARNING [Trace No Reference]: Trace6148::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
- {; w: K8 Q) E/ CWARNING [Trace No Reference]: Trace6341::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.1 U, _+ X: }+ h+ f; q6 a
WARNING [Trace No Reference]: Trace6385::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
' Z6 [4 F( T1 d5 HWARNING [Trace No Reference]: Trace6389::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment." M3 c& {. w! Z
WARNING [Trace No Reference]: Trace6390::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
; j/ R1 N! L7 ]9 b+ l  I! ^7 mWARNING [Trace No Reference]: Trace6391::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
8 v$ j: d, B0 GWARNING [Trace No Reference]: Trace6392::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
& m# c9 S5 d8 a& D( u- k$ RWARNING [Trace No Reference]: Trace6405::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.( I) X, A$ U9 z. ^. q) g9 `
WARNING [Trace No Reference]: Trace6406::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.5 l9 `' l4 C. `# {) D, B0 o: M
WARNING [Trace No Reference]: Trace6495::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.8 X( x0 P+ \) s/ n1 O% X
WARNING [Trace No Reference]: Trace6501::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.+ I9 o) i( u+ K2 |
WARNING [Trace No Reference]: Trace6537::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
" Q1 B8 @5 W, |: `; V0 mWARNING [Trace No Reference]: Trace6538::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
% V: e- a! n' p% V) EWARNING [Trace No Reference]: Trace6539::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.4 |( N* w/ g( C
WARNING [Trace No Reference]: Trace6540::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.4 n& [+ p  K2 q5 f( n
WARNING [Trace No Reference]: Trace6541::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.0 n- ^' ^, j2 M& L) I" K* T! O9 k
WARNING [Trace No Reference]: Trace6542::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
8 w; g4 [6 p+ h  a- xWARNING [Trace No Reference]: Trace6550::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
/ ]; A: L% \2 R5 S$ }WARNING [Trace No Reference]: Trace6558::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment., `* D- |9 t5 V" z
WARNING [Trace No Reference]: Trace6559::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.( _* M: ?. y, V8 Q- ~* m
WARNING [Trace No Reference]: Trace6619::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
9 r4 E, f( S" k: N# o' |& V0 ~WARNING [Trace No Reference]: Trace6620::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.. \4 a" v: E0 H7 k+ v
WARNING [Trace No Reference]: Trace6674::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
0 d2 a/ N0 q; ~5 q$ G' C9 u& oWARNING [Trace No Reference]: Trace6860::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.2 v2 V4 O& H: R% a' N
WARNING [Trace No Reference]: Trace6863::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.$ t2 o# Y" g8 a) X
WARNING [Trace No Reference]: Trace8640::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
/ g2 c$ Q  U/ F1 L: EWARNING [Trace No Reference]: Trace8643::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
' C( n+ E4 M- P: ~! I' XWARNING [Trace No Reference]: Trace8646::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
- b1 T6 R% w1 h6 X; P7 kWARNING [Trace No Reference]: Trace8647::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.6 E# d) `% |; X/ q1 `. C2 p$ m
WARNING [Trace No Reference]: Trace8648::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
9 E8 L# K3 N+ [& K) lWARNING [Trace No Reference]: Trace8649::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
3 ~: ~9 _4 J0 R& F$ \- T" sWARNING [Trace No Reference]: Trace8720::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
, e5 G% _% R/ k7 d# n- u6 lWARNING [Trace No Reference]: Trace8724::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.
% i( c: ?' @% O' FWARNING [Trace No Reference]: Trace8753::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.
+ X7 ^  h$ Q2 H1 {1 OWARNING [Trace No Reference]: Trace9038::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
+ B' M! |& j4 b3 e8 H) xWARNING [Trace No Reference]: Trace9039::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
7 C3 n9 ?& x, }9 r. FWARNING [Trace No Reference]: Trace9040::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.& n% Y4 w& y8 ~9 F! A  H; l
WARNING [Trace No Reference]: Trace9041::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.1 x" i5 J6 {* `7 j4 Q- {" M
我的叠层如下:/ D7 a  e7 S( d

7 N$ [4 `6 k1 s$ h% A5 l为什么会出现没有no plane or patch的提示呢

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2#
发表于 2013-11-13 15:58 | 只看该作者
应该是信号线上的node缺少参考面,可以定位某一个(例如Trace9041)信号线段,仔细分析一下看看该线的上下参考面是否完整,例如过孔反焊盘切割plane而造成的参考面不连续。

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3#
 楼主| 发表于 2013-11-13 16:01 | 只看该作者
qingdalj 发表于 2013-11-13 15:58
/ Q% P. @3 z1 T9 o- A- U应该是信号线上的node缺少参考面,可以定位某一个(例如Trace9041)信号线段,仔细分析一下看看该线的上下 ...

9 f! x, j( Q: r+ @+ L楼上理解正确,对应到问题查看了一上,下面的确是一块不完整的铜皮。

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4#
发表于 2013-11-13 16:05 | 只看该作者
用这套软件经常遇到各种问题,多多留心就好了
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