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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+ y7 v0 v& D) b/ x( e) }* e# y
WARNING [Trace No Reference]: Trace11393:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.# n! N: F- s! S4 Q! Q2 S
WARNING [Trace No Reference]: Trace11536:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.7 f- I+ k  ?5 t8 |3 ^# P( X& j
WARNING [Trace No Reference]: Trace11725:RAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.; d% q( R6 o4 X, i' v
WARNING [Trace No Reference]: Trace11731::DRAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.' s% f1 c$ U5 ]& E) L
WARNING [Trace No Reference]: Trace11761::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
4 J: p5 p# J( O) ~0 S1 l1 t: cWARNING [Trace No Reference]: Trace11868::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.- D, b0 ]- G! V- r, H* b4 I
WARNING [Trace No Reference]: Trace232 There is no plane or patch (top or bottom) covers the trace segment.' D$ r! W! J; }' |6 ^
WARNING [Trace No Reference]: Trace233 There is no plane or patch (top or bottom) covers the trace segment.
# `" L2 i) ^' I. Y: FWARNING [Trace No Reference]: Trace4303::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.
) [; h1 T6 l7 t" K7 l1 l* ?WARNING [Trace No Reference]: Trace4304::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment." T& k2 ]3 \2 {9 }" V& }
WARNING [Trace No Reference]: Trace4464::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.% W1 l: m- ]3 e( C. k
WARNING [Trace No Reference]: Trace4721::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.
) `. C' b7 e' @3 z# D2 rWARNING [Trace No Reference]: Trace4888::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.+ g0 a: o/ i( A0 Y! R5 P' |9 h7 ]3 ]. q
WARNING [Trace No Reference]: Trace4969::VDD_COREA12 There is no plane or patch (top or bottom) covers the trace segment.
  G5 K. l! U# k8 g, e+ [& UWARNING [Trace No Reference]: Trace5235::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
9 m# {# X2 x" [* U% f9 EWARNING [Trace No Reference]: Trace5239::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
/ }" M8 P. ?/ _3 rWARNING [Trace No Reference]: Trace5476::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment./ T  }1 E! K7 {1 b% k
WARNING [Trace No Reference]: Trace5521::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
5 o- E$ j3 l" t3 ^4 n/ QWARNING [Trace No Reference]: Trace5872::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
( s: t$ Q8 Y2 O" |% SWARNING [Trace No Reference]: Trace5873::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
9 d5 \! S  k9 m/ D  {6 GWARNING [Trace No Reference]: Trace5953::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
2 n7 Y7 Y# u3 Q; @+ `2 rWARNING [Trace No Reference]: Trace5954::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
* d" H. Z3 e  k4 C  j% G. z3 R# zWARNING [Trace No Reference]: Trace5955::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.4 @/ ]8 y6 k% ]7 C
WARNING [Trace No Reference]: Trace5956::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
* e1 K+ _! l0 S$ p* s7 f* cWARNING [Trace No Reference]: Trace6097::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
. q4 F' s) M  h0 b. V" x" u+ WWARNING [Trace No Reference]: Trace6148::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
# a1 q0 |2 P- O+ \. D" R9 ]WARNING [Trace No Reference]: Trace6341::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
) Z* y8 A: ]" M! t& G8 _WARNING [Trace No Reference]: Trace6385::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
) b0 e: e  P8 R4 Y8 b( l* J5 {% @WARNING [Trace No Reference]: Trace6389::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
7 W' H9 O4 a3 F; X2 \3 p# T$ wWARNING [Trace No Reference]: Trace6390::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
: E2 L5 D) i- p* W" m/ p" IWARNING [Trace No Reference]: Trace6391::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
# X" C  o; B% ?# mWARNING [Trace No Reference]: Trace6392::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
2 j# C) Q6 g6 p7 p8 _& IWARNING [Trace No Reference]: Trace6405::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
7 n4 U, k. c+ I0 ^! B( s3 gWARNING [Trace No Reference]: Trace6406::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment." [2 S4 s. B5 h# o, o  y
WARNING [Trace No Reference]: Trace6495::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.( Q, w$ Y5 S1 O: ]
WARNING [Trace No Reference]: Trace6501::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.! j1 ?. L2 g7 R+ o+ L
WARNING [Trace No Reference]: Trace6537::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
/ K; ~* F* y6 R# h0 D0 B  ?* D" t3 HWARNING [Trace No Reference]: Trace6538::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.* A* `0 V& O7 O8 I' c$ y% c8 {
WARNING [Trace No Reference]: Trace6539::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
% @0 n# ^4 R( P$ tWARNING [Trace No Reference]: Trace6540::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.0 Q6 s) k& V3 z, t# t  d% b
WARNING [Trace No Reference]: Trace6541::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.+ R9 o+ O: W) b) E
WARNING [Trace No Reference]: Trace6542::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.2 p# l0 ^: }3 s, \: J2 g( y+ r
WARNING [Trace No Reference]: Trace6550::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.' Q& x4 H) A* J3 y- _
WARNING [Trace No Reference]: Trace6558::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.& ?, u2 w% H; h4 B$ G0 a; ]% H
WARNING [Trace No Reference]: Trace6559::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.) ], ?- M# |0 h/ W' F9 m- M& M' Z
WARNING [Trace No Reference]: Trace6619::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.5 P- o- t+ l  V3 j( C8 O
WARNING [Trace No Reference]: Trace6620::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.) c, P6 Q1 g" O0 R0 p
WARNING [Trace No Reference]: Trace6674::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
( |: z# I1 _( ?" oWARNING [Trace No Reference]: Trace6860::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.$ ]& }: w+ h: j/ ?& M/ f) b
WARNING [Trace No Reference]: Trace6863::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.
: J+ J. F# Z; I8 a, tWARNING [Trace No Reference]: Trace8640::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.3 E, U* F5 b) i6 |* m
WARNING [Trace No Reference]: Trace8643::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.; d8 e7 V" V3 Y3 E2 {% D
WARNING [Trace No Reference]: Trace8646::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.7 ^; B- w; x: ?2 p" ?& o
WARNING [Trace No Reference]: Trace8647::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.* q6 F. x4 ]8 [0 u/ z( d
WARNING [Trace No Reference]: Trace8648::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
5 x( h  Q" g: ^! B2 y; ]6 U( dWARNING [Trace No Reference]: Trace8649::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.' b" J# F0 g4 F8 f$ x
WARNING [Trace No Reference]: Trace8720::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
# D. d6 g1 e8 \# N5 S/ YWARNING [Trace No Reference]: Trace8724::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.- F% u% h( l; j) d$ `2 P/ X; }
WARNING [Trace No Reference]: Trace8753::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment." v7 {9 G8 k  H
WARNING [Trace No Reference]: Trace9038::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
% j9 u; I$ D. ?- E7 BWARNING [Trace No Reference]: Trace9039::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.2 }% d1 X" q/ {3 A! K- Q7 q
WARNING [Trace No Reference]: Trace9040::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment./ |! Z% r, k9 {* ~, U- @: q) V, k+ X+ z
WARNING [Trace No Reference]: Trace9041::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
9 @) t# V  G" N! S7 w我的叠层如下:
  D% n( b' d! s9 p , S8 S3 m. ~: V9 ~! E" z) e
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# c0 E1 e- I6 K) K) h" W' K
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 ...

0 N: m" |2 v  D4 b- P- e; s6 C4 s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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