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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
- R% ~, l0 L3 D) `9 E- F' ^% |* aWARNING [Trace No Reference]: Trace11393:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.
4 n1 D) x1 Y+ ?' f' i5 \WARNING [Trace No Reference]: Trace11536:RAM_BA2 There is no plane or patch (top or bottom) covers the trace segment.
9 O( {  b" P4 O0 p7 o9 ^WARNING [Trace No Reference]: Trace11725:RAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.5 T  @5 a7 s, S. M6 h
WARNING [Trace No Reference]: Trace11731::DRAM_BA1 There is no plane or patch (top or bottom) covers the trace segment.
$ M: F3 U. ^9 q/ I; \& K" TWARNING [Trace No Reference]: Trace11761::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
! y" f) i  f! N/ GWARNING [Trace No Reference]: Trace11868::DRAM_BA0 There is no plane or patch (top or bottom) covers the trace segment.
/ o( d, f: _6 \' J2 S! xWARNING [Trace No Reference]: Trace232 There is no plane or patch (top or bottom) covers the trace segment.
7 o/ G7 b) k; e  h7 H% N; a* IWARNING [Trace No Reference]: Trace233 There is no plane or patch (top or bottom) covers the trace segment.4 R  I, t, Z7 q5 ^7 j
WARNING [Trace No Reference]: Trace4303::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.
3 t/ [" g) l/ b. K# T4 `WARNING [Trace No Reference]: Trace4304::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.% J' C' _5 ?/ o9 W# F0 U+ |
WARNING [Trace No Reference]: Trace4464::DRAM_A5 There is no plane or patch (top or bottom) covers the trace segment.( G: L+ r5 x1 I& s
WARNING [Trace No Reference]: Trace4721::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.( N6 y- W# c6 g4 a5 v
WARNING [Trace No Reference]: Trace4888::DRAM_A3 There is no plane or patch (top or bottom) covers the trace segment.
# Q! r  Z3 M$ @WARNING [Trace No Reference]: Trace4969::VDD_COREA12 There is no plane or patch (top or bottom) covers the trace segment.
0 [2 a) z" `, K. r1 I$ @WARNING [Trace No Reference]: Trace5235::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
- }; p( C. s1 t+ y. K5 H* t# DWARNING [Trace No Reference]: Trace5239::DRAM_A6 There is no plane or patch (top or bottom) covers the trace segment.
" w9 O: d5 Q$ }% g+ X# HWARNING [Trace No Reference]: Trace5476::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment." R% n; P+ I0 d0 q. H9 d% ?; `
WARNING [Trace No Reference]: Trace5521::DRAM_A4 There is no plane or patch (top or bottom) covers the trace segment.
  t0 ^  |; Y8 `* F8 u' q1 UWARNING [Trace No Reference]: Trace5872::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.
$ Y4 h  W  Y* m: _. G$ ]' WWARNING [Trace No Reference]: Trace5873::DRAM_A1 There is no plane or patch (top or bottom) covers the trace segment.# P% g; H6 V3 V$ [. h) |
WARNING [Trace No Reference]: Trace5953::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.) M3 }( r; K4 M! h4 F0 u. ?
WARNING [Trace No Reference]: Trace5954::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.# X& R  ?+ I, Q2 v
WARNING [Trace No Reference]: Trace5955::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.4 n+ c( v, j! X( j3 j
WARNING [Trace No Reference]: Trace5956::DRAM_A8 There is no plane or patch (top or bottom) covers the trace segment.
8 M2 r9 a& A0 s% h4 F  aWARNING [Trace No Reference]: Trace6097::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.
8 s# m. l5 H; O& K) K' {WARNING [Trace No Reference]: Trace6148::DRAM_A14 There is no plane or patch (top or bottom) covers the trace segment.' Q& N1 j0 T* n, c, `
WARNING [Trace No Reference]: Trace6341::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
2 s# g6 t; ?5 a$ Y& C3 OWARNING [Trace No Reference]: Trace6385::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.$ E. A4 c# E; C; A( ^3 L. p$ S2 K
WARNING [Trace No Reference]: Trace6389::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.- K4 n: [) u7 h- [: s+ D0 ^
WARNING [Trace No Reference]: Trace6390::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
4 M6 e9 f; x* v( z; q. Y) _WARNING [Trace No Reference]: Trace6391::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.* a8 D/ E; {& X/ Q) [/ ~
WARNING [Trace No Reference]: Trace6392::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
+ W5 M% g5 @) F$ B2 d! W, ~WARNING [Trace No Reference]: Trace6405::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
% X  h& v: Z  m( |2 OWARNING [Trace No Reference]: Trace6406::DRAM_A13 There is no plane or patch (top or bottom) covers the trace segment.
! n1 E5 x- `/ `WARNING [Trace No Reference]: Trace6495::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.- S! c2 g3 F$ X) u  ~5 b
WARNING [Trace No Reference]: Trace6501::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.+ y# C' x& u4 t* A! }8 f% T$ C
WARNING [Trace No Reference]: Trace6537::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.! o7 ?( k8 X" A' m
WARNING [Trace No Reference]: Trace6538::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
& T6 G, h* P; l" I) o+ _6 k3 _WARNING [Trace No Reference]: Trace6539::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
! x9 {& d- Q0 F2 {WARNING [Trace No Reference]: Trace6540::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
( x! X$ I2 F# L1 D7 M# yWARNING [Trace No Reference]: Trace6541::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.
) H) c3 j; n/ L  m' EWARNING [Trace No Reference]: Trace6542::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment.+ z2 m) l# U& e) t- R/ ^
WARNING [Trace No Reference]: Trace6550::DRAM_A9 There is no plane or patch (top or bottom) covers the trace segment./ x9 K% s1 J7 O1 Q* U+ x# T8 @- u
WARNING [Trace No Reference]: Trace6558::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
7 q4 M& }! J/ V" r; _WARNING [Trace No Reference]: Trace6559::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.  z$ l! x* A8 X/ m
WARNING [Trace No Reference]: Trace6619::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.
  c- v2 R  ^. u1 T: pWARNING [Trace No Reference]: Trace6620::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment./ j& F3 @; t( |4 B, f2 V% r1 O: t
WARNING [Trace No Reference]: Trace6674::DRAM_A7 There is no plane or patch (top or bottom) covers the trace segment.) r, w/ U3 s+ B  c% R
WARNING [Trace No Reference]: Trace6860::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.' Z2 P) r$ @, C7 n, C
WARNING [Trace No Reference]: Trace6863::DRAM_D2 There is no plane or patch (top or bottom) covers the trace segment.7 m$ E5 V1 V0 Z1 @" ]
WARNING [Trace No Reference]: Trace8640::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
' v# M) P1 Q/ ZWARNING [Trace No Reference]: Trace8643::DRAM_D3 There is no plane or patch (top or bottom) covers the trace segment.
& F! K: l. _: A/ ?WARNING [Trace No Reference]: Trace8646::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
# \& o, U; }* v% p' w  h4 nWARNING [Trace No Reference]: Trace8647::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
% l8 W, E" _; x6 `: MWARNING [Trace No Reference]: Trace8648::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
9 z% z& c  ?+ i% Z) M* sWARNING [Trace No Reference]: Trace8649::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.
7 U7 q1 w* s3 @- ~6 l* l- v. `WARNING [Trace No Reference]: Trace8720::DRAM_D1 There is no plane or patch (top or bottom) covers the trace segment.' T8 S$ i' X# h9 L" o
WARNING [Trace No Reference]: Trace8724::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.
3 Q8 h  m! V; E; h5 i8 l% T$ bWARNING [Trace No Reference]: Trace8753::DRAM_D5 There is no plane or patch (top or bottom) covers the trace segment.
! \9 c- _/ n- N- \5 I5 IWARNING [Trace No Reference]: Trace9038::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
% F# j# X7 m/ M, H/ a9 ZWARNING [Trace No Reference]: Trace9039::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.& V5 z) m0 N' E9 {* k; U, k! z
WARNING [Trace No Reference]: Trace9040::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
: e2 D- N* s0 [1 e& QWARNING [Trace No Reference]: Trace9041::DRAM_D7 There is no plane or patch (top or bottom) covers the trace segment.
0 y) f2 b+ Y* O$ a& e: p我的叠层如下:
+ Z, E9 d) j+ K, t- m
6 ?' V4 o; _- V0 M: V6 _. y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 15:589 d, d2 F; H( X
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 ...
* a$ \9 ?  e9 A2 L+ y) m- 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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