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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$ D0 R# m1 s+ T, w" Q2 p- l
WARNING [Trace No Reference]: Trace11393:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.# I2 Z! N0 ]8 G3 y
WARNING [Trace No Reference]: Trace11536:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.
+ Y& r; n* c* C% h( G$ e) A% cWARNING [Trace No Reference]: Trace11725:RAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.
0 n( P. A, L( d/ ?8 D0 ZWARNING [Trace No Reference]: Trace11731::DRAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.% h! I" v. F6 p  T/ E
WARNING [Trace No Reference]: Trace11761::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
0 ^% `8 G" n! H0 M# ^6 |( MWARNING [Trace No Reference]: Trace11868::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
/ W7 n) X( Q; z) ~6 u- E4 Z+ ZWARNING [Trace No Reference]: Trace232 There is no plane or patch (top or bottom) covers the trace segment.
5 M) s' s0 R5 I7 q9 K. \; [WARNING [Trace No Reference]: Trace233 There is no plane or patch (top or bottom) covers the trace segment.0 J( E) q- `2 y9 a% q
WARNING [Trace No Reference]: Trace4303::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.
5 w+ Q; j: v# [0 u5 ]6 F2 N# JWARNING [Trace No Reference]: Trace4304::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.
. @0 j4 m! D. v/ Y" @) l: z: UWARNING [Trace No Reference]: Trace4464::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.
8 f/ o: B. S8 r* g" _% m) J! j  OWARNING [Trace No Reference]: Trace4721::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment." y. ?; G* g* N  o
WARNING [Trace No Reference]: Trace4888::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.: K8 b% b# C; W4 O
WARNING [Trace No Reference]: Trace4969::VDD_COREA12 There is no plane or patch (top or bottom) covers the trace segment.% d+ O, u2 u% l' e( R) I% G
WARNING [Trace No Reference]: Trace5235::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
0 D7 }! [; B& DWARNING [Trace No Reference]: Trace5239::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
2 ~8 ?4 |% l2 W% l2 t/ d* w' }8 n8 o% aWARNING [Trace No Reference]: Trace5476::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
5 {- y4 [  l! Y" i' S  `! D- b9 KWARNING [Trace No Reference]: Trace5521::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
, P2 u5 \' ^' q2 {WARNING [Trace No Reference]: Trace5872::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
& x" c! D( ?! v: M5 T8 p( ~; jWARNING [Trace No Reference]: Trace5873::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.; l- B! @# e4 J4 I3 c! f
WARNING [Trace No Reference]: Trace5953::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.$ j! n6 _2 w2 T$ }3 |9 J
WARNING [Trace No Reference]: Trace5954::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.8 q/ z# y! H' Z* Y, `9 g
WARNING [Trace No Reference]: Trace5955::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
. w" S2 }0 I% m' A' I! WWARNING [Trace No Reference]: Trace5956::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
% R% }! J) E; ~2 [/ BWARNING [Trace No Reference]: Trace6097::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.1 _8 R3 A. G. k+ _" x! A
WARNING [Trace No Reference]: Trace6148::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
* Y0 q6 r  ?# h/ [( j# b4 t% PWARNING [Trace No Reference]: Trace6341::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
1 x$ _; Y4 M" N8 I! j7 aWARNING [Trace No Reference]: Trace6385::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.: S! W1 t0 Q( V$ O7 e
WARNING [Trace No Reference]: Trace6389::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
& |5 _/ R  V1 O+ V3 m2 TWARNING [Trace No Reference]: Trace6390::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.3 o/ @  O. {: `4 \
WARNING [Trace No Reference]: Trace6391::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.: P, d: P5 j: p6 |. E" y0 B+ q
WARNING [Trace No Reference]: Trace6392::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.4 U& N3 S- l6 c* Y4 ~- y
WARNING [Trace No Reference]: Trace6405::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.! v3 m: ]5 y: {# P& ^
WARNING [Trace No Reference]: Trace6406::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.+ Y. t/ o# |* w' I: k! ^9 Q# [4 O
WARNING [Trace No Reference]: Trace6495::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.  M* d3 h9 O3 m7 V0 w
WARNING [Trace No Reference]: Trace6501::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
. A' u2 o! o: v6 {: a2 SWARNING [Trace No Reference]: Trace6537::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.- Q- d; B! F: R7 B9 R  u# R
WARNING [Trace No Reference]: Trace6538::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.: F0 s3 d& l0 x% B' Q* u! S
WARNING [Trace No Reference]: Trace6539::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment./ u/ L* A, Z8 `- c
WARNING [Trace No Reference]: Trace6540::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
9 D. m9 z0 S, U7 U) E* e0 xWARNING [Trace No Reference]: Trace6541::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment./ b& l0 B0 J% M9 i* d1 B) Q/ f" L9 [
WARNING [Trace No Reference]: Trace6542::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
& Z9 m1 M( f3 e: ~' _. JWARNING [Trace No Reference]: Trace6550::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment./ }# t4 s: e5 L8 V; O0 c' J
WARNING [Trace No Reference]: Trace6558::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
. J' M) b1 I; M; h* R( Z1 S- CWARNING [Trace No Reference]: Trace6559::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
# j( ]% y9 d  b6 z8 wWARNING [Trace No Reference]: Trace6619::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment., J; K8 U0 S& b( l& |. _# M! l2 e
WARNING [Trace No Reference]: Trace6620::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
( v5 o$ y2 p6 L" s$ ^7 g- {2 A3 X# a( pWARNING [Trace No Reference]: Trace6674::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.6 F) J/ g( r4 Q8 a, m# R
WARNING [Trace No Reference]: Trace6860::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.: `1 Q: m/ o8 T* w1 Y
WARNING [Trace No Reference]: Trace6863::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.
- \3 G; v% T7 r  V8 m- CWARNING [Trace No Reference]: Trace8640::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.0 ^, L% c# X# t8 C$ [
WARNING [Trace No Reference]: Trace8643::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.- u5 U8 R! J' M( E0 g  d; \
WARNING [Trace No Reference]: Trace8646::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
1 J  [) T' t& u" s& dWARNING [Trace No Reference]: Trace8647::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
2 l' X' J% ^  J  i  x% k/ l+ X6 HWARNING [Trace No Reference]: Trace8648::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
" G! K) l/ ]# BWARNING [Trace No Reference]: Trace8649::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.: A) f: m' a( w. r3 D8 H. v3 n
WARNING [Trace No Reference]: Trace8720::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
! v+ x/ k, ]! F0 l8 @0 L7 dWARNING [Trace No Reference]: Trace8724::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.9 ?+ C1 C9 F9 ^3 u
WARNING [Trace No Reference]: Trace8753::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.: A4 n1 O: R0 S6 p" `+ u
WARNING [Trace No Reference]: Trace9038::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment." c0 w/ _6 g. ~0 H- {
WARNING [Trace No Reference]: Trace9039::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
$ _. z/ P* }3 G* [2 q$ UWARNING [Trace No Reference]: Trace9040::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
" |& @/ b: R. K* Z7 xWARNING [Trace No Reference]: Trace9041::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment." Q; n+ U& q$ Z4 s
我的叠层如下:
) o4 A  w. E* M5 ^# I+ [! w
! Z, a( p1 m5 C# O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
* `4 l& e7 Q! ?) o8 e$ p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 ...

2 `$ @! W2 P1 Y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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