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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
! F& e6 a( t) ]0 fWARNING [Trace No Reference]: Trace11393:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.4 G4 w  O" g! e! x: Y
WARNING [Trace No Reference]: Trace11536:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.( F5 `; T3 y- q. u" h$ i
WARNING [Trace No Reference]: Trace11725:RAM_BA1 There is no plane or patch (top or bottom) covers the trace segment." t2 D: x% H* g. X- @/ L/ ]
WARNING [Trace No Reference]: Trace11731::DRAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.1 W. B. q4 [0 S  N8 W
WARNING [Trace No Reference]: Trace11761::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.4 V- h9 I' M. P6 F
WARNING [Trace No Reference]: Trace11868::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
- ~' B: Q4 n, O" K  p* l: oWARNING [Trace No Reference]: Trace232 There is no plane or patch (top or bottom) covers the trace segment.! d# x, J' p/ W+ s) J' _% g
WARNING [Trace No Reference]: Trace233 There is no plane or patch (top or bottom) covers the trace segment.
% w9 O& E6 g# _- Y8 V$ ]) J. PWARNING [Trace No Reference]: Trace4303::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.
* ~! X2 g7 l6 `- ^WARNING [Trace No Reference]: Trace4304::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.- E$ [* {6 m# K) U! W$ }  V3 ~
WARNING [Trace No Reference]: Trace4464::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.2 f2 b! o6 w9 D0 y  {% ^# e+ n
WARNING [Trace No Reference]: Trace4721::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.
$ i& i0 ]: U$ Q! d! ?( b% JWARNING [Trace No Reference]: Trace4888::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.
* f" W6 `: q- B! L" g. h- M* jWARNING [Trace No Reference]: Trace4969::VDD_COREA12 There is no plane or patch (top or bottom) covers the trace segment.
7 i* z( c( D& j- @WARNING [Trace No Reference]: Trace5235::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
! V& s4 K. v% g3 h) m% PWARNING [Trace No Reference]: Trace5239::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
% F3 J  p6 Q: C9 V8 q& @  xWARNING [Trace No Reference]: Trace5476::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.; l5 s$ S, [$ s7 e
WARNING [Trace No Reference]: Trace5521::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
0 k8 l9 y1 U( o9 Z. n3 o2 ^, d" LWARNING [Trace No Reference]: Trace5872::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
% e1 N0 G9 O7 u. h! xWARNING [Trace No Reference]: Trace5873::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.7 L7 S, q8 u, v9 {2 J) {
WARNING [Trace No Reference]: Trace5953::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
0 n# D8 Z+ f) L0 z: y! {; W* bWARNING [Trace No Reference]: Trace5954::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
; P& J6 ]" [/ M7 v7 x1 SWARNING [Trace No Reference]: Trace5955::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
8 i# g) U, h. q* FWARNING [Trace No Reference]: Trace5956::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
% R9 E; S( b# @" iWARNING [Trace No Reference]: Trace6097::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
' W6 Q# k- y! t3 R) w6 PWARNING [Trace No Reference]: Trace6148::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
  n3 e' h" x! r- b( d4 H+ `WARNING [Trace No Reference]: Trace6341::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.0 |  W0 X" h4 d# C+ W7 c. G1 Q* b
WARNING [Trace No Reference]: Trace6385::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
( m. D4 v6 c  }0 P0 w+ Q! |WARNING [Trace No Reference]: Trace6389::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
1 K4 g% ^* t# G1 X+ qWARNING [Trace No Reference]: Trace6390::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
7 ]3 \( T4 O% ]4 v) p* CWARNING [Trace No Reference]: Trace6391::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.& I/ y9 W( [8 N' u
WARNING [Trace No Reference]: Trace6392::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.! N6 g' w9 I- E$ U; r
WARNING [Trace No Reference]: Trace6405::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
$ J1 _4 e- i0 Z. jWARNING [Trace No Reference]: Trace6406::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.. s; h3 p; `: c' e0 }, w
WARNING [Trace No Reference]: Trace6495::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
5 `% N3 U! \9 u# \1 Y! OWARNING [Trace No Reference]: Trace6501::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.! e+ \' ?9 m- N0 ?; H( M
WARNING [Trace No Reference]: Trace6537::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment./ e( [& {- r% u  U* L4 o; n. B% q
WARNING [Trace No Reference]: Trace6538::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
0 q$ c, P5 @. ?9 R" UWARNING [Trace No Reference]: Trace6539::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.5 k* t7 n% [/ c+ E  t& v& f8 p
WARNING [Trace No Reference]: Trace6540::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment./ q3 l: s# _8 T. z2 q7 m
WARNING [Trace No Reference]: Trace6541::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
- h' C& o8 `" j0 k8 mWARNING [Trace No Reference]: Trace6542::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
8 O6 Q# e2 u4 S+ P2 G7 q* X8 ?7 cWARNING [Trace No Reference]: Trace6550::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.! c& m( X6 `& @3 Z+ z
WARNING [Trace No Reference]: Trace6558::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.; a9 b! w- Y! ]+ ?9 i) T- Y
WARNING [Trace No Reference]: Trace6559::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
6 d8 Y  A; K; ~3 |9 [4 E& w2 UWARNING [Trace No Reference]: Trace6619::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
+ }$ o% R" _6 s1 Z* v+ _WARNING [Trace No Reference]: Trace6620::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.: ?, I2 E" D5 S
WARNING [Trace No Reference]: Trace6674::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
/ b9 G, [$ t# @, h1 z3 xWARNING [Trace No Reference]: Trace6860::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.# Z4 W: o  l  T! U# S
WARNING [Trace No Reference]: Trace6863::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.( U: j& N3 A% m
WARNING [Trace No Reference]: Trace8640::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
. \( F4 \+ y2 [+ R9 r3 |WARNING [Trace No Reference]: Trace8643::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
; x" H0 m) c4 t& K5 d( T5 N  yWARNING [Trace No Reference]: Trace8646::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.2 \& H: ^2 Y$ l. V1 N2 l
WARNING [Trace No Reference]: Trace8647::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.7 y& U* z" v# y) I- \5 d' ]+ M
WARNING [Trace No Reference]: Trace8648::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.5 Y3 V8 l, q# ^" j
WARNING [Trace No Reference]: Trace8649::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.# J7 u; Q+ u* ]! q1 _# N
WARNING [Trace No Reference]: Trace8720::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.2 W9 K0 Z. A# ]9 c6 Y( f
WARNING [Trace No Reference]: Trace8724::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.% @& s; f( ~; m0 k% X$ {7 j/ e
WARNING [Trace No Reference]: Trace8753::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.
& _0 |! s9 {5 hWARNING [Trace No Reference]: Trace9038::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.4 R, |+ r% U0 s- r1 r, I  z
WARNING [Trace No Reference]: Trace9039::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.8 o) k( M) B! G, v' Y, |
WARNING [Trace No Reference]: Trace9040::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.% ?" v, F- ?- f3 F. m) D
WARNING [Trace No Reference]: Trace9041::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.7 J9 [7 [- P- u( S" H& @! z
我的叠层如下:
: B# K& z4 Z8 U - K! F7 e' r0 Z
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# ?9 E% z8 e$ {6 M
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 F2 T& k- ]4 W6 \
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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