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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* Y. _! Q. i' q9 p4 H
WARNING [Trace No Reference]: Trace11393:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.
! `; H/ o! A; n+ N& }+ ]WARNING [Trace No Reference]: Trace11536:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.  G& ?* |0 s# v" O: i. Z& I7 x  O
WARNING [Trace No Reference]: Trace11725:RAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.1 h( U& Z+ L' x
WARNING [Trace No Reference]: Trace11731::DRAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.
) v7 g5 }6 `$ k2 v6 e8 YWARNING [Trace No Reference]: Trace11761::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.: D, r8 @; U2 f$ ^& ?# N
WARNING [Trace No Reference]: Trace11868::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.$ P) x+ ?0 K0 r( D- Z4 v$ Y
WARNING [Trace No Reference]: Trace232 There is no plane or patch (top or bottom) covers the trace segment.
/ o/ D4 o/ f( p3 s; ?7 _' _WARNING [Trace No Reference]: Trace233 There is no plane or patch (top or bottom) covers the trace segment.: J; b- ^% R( }/ f4 t& C
WARNING [Trace No Reference]: Trace4303::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.! u7 w7 j+ [9 F% H$ p- y
WARNING [Trace No Reference]: Trace4304::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.9 e, X" `' F3 d; i  [
WARNING [Trace No Reference]: Trace4464::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.9 G1 n8 i+ n  }1 a# i6 z
WARNING [Trace No Reference]: Trace4721::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.8 V+ {) y+ F& }+ M
WARNING [Trace No Reference]: Trace4888::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.
3 V. n5 {2 E! c! ?$ O) `# i" T* @4 b5 NWARNING [Trace No Reference]: Trace4969::VDD_COREA12 There is no plane or patch (top or bottom) covers the trace segment.
  @# ~$ v$ n- {. b/ UWARNING [Trace No Reference]: Trace5235::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
1 s" Q$ x, x8 |! L- b2 vWARNING [Trace No Reference]: Trace5239::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment., l7 ]  c9 u1 P# [# b% |
WARNING [Trace No Reference]: Trace5476::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.4 j# O9 r6 V, Y5 E- K
WARNING [Trace No Reference]: Trace5521::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
# Q2 p* i3 n; k% R, }- l: Z8 cWARNING [Trace No Reference]: Trace5872::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
9 }; R, j9 X/ n; b: ^WARNING [Trace No Reference]: Trace5873::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
& O. C& }0 _3 l  M6 [2 r. nWARNING [Trace No Reference]: Trace5953::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
$ R. M: V6 t+ K2 l. x6 H0 K9 RWARNING [Trace No Reference]: Trace5954::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
  l7 x! ^9 n* I' VWARNING [Trace No Reference]: Trace5955::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
  L2 N8 Y2 Y5 P% B5 E7 w% TWARNING [Trace No Reference]: Trace5956::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment., u: R1 O& V! j! {/ E$ P
WARNING [Trace No Reference]: Trace6097::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.4 D0 g3 I3 D  N$ R- h3 N
WARNING [Trace No Reference]: Trace6148::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.' Z& |' V: n$ m: f. E
WARNING [Trace No Reference]: Trace6341::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.9 m, D; w) k! a# @$ T
WARNING [Trace No Reference]: Trace6385::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
0 Y6 u1 x5 Z! r+ NWARNING [Trace No Reference]: Trace6389::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
, k5 ~$ B/ c2 s* a; n. eWARNING [Trace No Reference]: Trace6390::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.: ?  D0 [( L3 _4 ~3 Z
WARNING [Trace No Reference]: Trace6391::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
: K3 b" r- |! T! _( PWARNING [Trace No Reference]: Trace6392::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.% @5 D5 h6 L) s& ~
WARNING [Trace No Reference]: Trace6405::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
; q$ h7 ?% h% f& B8 G8 nWARNING [Trace No Reference]: Trace6406::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
% s* R" Z/ Y4 n9 k/ d; W% H' {+ T- K$ dWARNING [Trace No Reference]: Trace6495::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
* S. f& F# k2 p0 W8 O, N) l$ N( {WARNING [Trace No Reference]: Trace6501::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.$ z) h5 }! U  N" i7 ]* z( [6 z9 g" l
WARNING [Trace No Reference]: Trace6537::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
! N* z# n  Q) D- D0 `WARNING [Trace No Reference]: Trace6538::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
; w7 l. m9 z) O, }, BWARNING [Trace No Reference]: Trace6539::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.$ {) R/ A- [0 M: m. \
WARNING [Trace No Reference]: Trace6540::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
3 L# }( A! q. c. l; j6 lWARNING [Trace No Reference]: Trace6541::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
1 x) k) }; i+ O% Z3 WWARNING [Trace No Reference]: Trace6542::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.  _% [$ U9 O/ p/ X
WARNING [Trace No Reference]: Trace6550::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
# v" }$ L' M: ~9 g( F4 |WARNING [Trace No Reference]: Trace6558::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.# M: d) E9 F7 C6 M- X
WARNING [Trace No Reference]: Trace6559::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
  ?* x/ ?# [* b2 c/ mWARNING [Trace No Reference]: Trace6619::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
% r% k% K7 C- ~3 G4 V8 Y# m, ~WARNING [Trace No Reference]: Trace6620::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.+ [2 _% y  V$ [
WARNING [Trace No Reference]: Trace6674::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.9 N3 D, g% i& Y* [
WARNING [Trace No Reference]: Trace6860::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.$ b% N4 L5 N2 f4 P
WARNING [Trace No Reference]: Trace6863::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.
4 i2 \8 h5 [" y7 QWARNING [Trace No Reference]: Trace8640::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.* h( t( ?6 C+ w& k& ^( [  Z
WARNING [Trace No Reference]: Trace8643::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
# A9 c( j- v: Y9 Z6 m5 a) V: V- qWARNING [Trace No Reference]: Trace8646::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
1 |+ g# R" B3 R: c3 zWARNING [Trace No Reference]: Trace8647::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.) R& }$ ^0 K7 G6 F
WARNING [Trace No Reference]: Trace8648::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.' V4 d# x6 g; Y) i
WARNING [Trace No Reference]: Trace8649::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.) J9 `7 D, g; Q
WARNING [Trace No Reference]: Trace8720::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
/ g- c+ ]2 \) {5 d4 rWARNING [Trace No Reference]: Trace8724::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.
0 q* l+ ^& Z% O5 jWARNING [Trace No Reference]: Trace8753::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.  c7 X. c9 Q- m' l, c
WARNING [Trace No Reference]: Trace9038::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment., l9 j* `) G3 U& X* y0 ]
WARNING [Trace No Reference]: Trace9039::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
# Z# ?& K) U0 |. y1 n3 MWARNING [Trace No Reference]: Trace9040::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
/ J. j% M. g0 j6 fWARNING [Trace No Reference]: Trace9041::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.- E; o1 l3 g. S2 Q' J9 E1 l4 p
我的叠层如下:/ a* B" B2 k/ K8 H' N, G$ o% j

' X1 D9 V3 A3 j- o$ ]+ h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
) A8 R6 H: Z& ?, Y4 \. Y* ~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 ...
8 x! h! r+ ]9 ]' \4 c8 A
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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