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这是我设置XNET等长后,布线完成对线进行show element 弹出的信息:
; a' |" r5 ^) X* y8 R我明明设置的XNET是 是 Total Ecth Length :min = 2000 MIL , max = 2100 MIL6 k' X! {; D" l5 M
在Reletive propagation delays 中设置的公差是 0:100 (mil)
7 q" u2 w! h8 p: q0 ~为什么会出现“ (RDly) (Xnet=IDE_D9) U3.D17 to IDE1.6 min= 2191 MIL max= 2391 MIL actual= 2362 MIL3 Z4 C6 F7 J0 m& i" x8 H
target= (IDE_D9) U3.D17 to IDE1.6”' B' D8 m. G2 I) U" h& n& ^! o
这个结果?
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附:该线的网络具体情况是从 U3 .D1------ RN(排阻) --------0(过孔)-------------- IDE1.6
& B+ @& H9 u9 ^ |
& z0 T2 [2 w, ~# [ -----------------------------------CF1.48 ( L+ M8 C3 }# u8 y: E, F- g
! p5 G* L; {! q; z+ Z; D我的意图是设置 U3.D17 到 IDE1.6 线长为2000 ~ 2100 (MIL)而不计 过孔到CF1.48 线长。5 I9 q. w: \. H5 U2 K- U1 I# m: h4 M
我这样设置对不对啊?应该怎么做呢?
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第二个问题:RDly 与 totE 分别表示什么?, R. t. N% g& M. @; n9 k. L
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0 N! C z6 }% ?" {! y' |( ZLISTING: 1 element(s)6 i+ ?5 m( _7 Q7 K# n0 I- h( B6 u, }+ m
< NET >
! b, M* f! g6 j8 `; W Net Name: IDE_D9$ t$ n8 X; v$ ?9 G! f* ]& l
Member of XNet: IDE_D9
+ x7 l s0 g: P- V Member of Bus: IDE_DATA_BUS# z6 M; V; T2 e I0 T9 w
Pin count: 3" ]6 x: K9 ]0 q6 f
Via count: 2
- a" e& S3 W( ?4 z$ ?5 w Total etch length: 2662 MIL
$ s8 n# j8 g c7 V* o Total manhattan length: 2064 MIL" H$ p) h: F+ h" {; x4 O& m5 @
Percent manhattan: 128.97%) p% W9 m6 _+ ~, l% b; {
Pin Type SigNoise Model Location
# x2 i, a( J2 \% m' b) ^1 ] --- ---- -------------- --------
Z: y7 [; a9 ^8 V, }. f# G; k IDE1.6 BI CDSDefaultIO (5901 376)9 E$ T9 [+ d$ e( ?
CF1.48 UNSPEC (6137 1525)
2 j6 x8 K- I, n) ~% b. \ RN6.1 UNSPEC RN6_22 (6623 1718)* h* R, J, _& w: d, F7 |
No connections remaining1 a" `- O1 y* v5 m ?$ z* W
Properties attached to net: n( l9 N4 ~% R- V$ Q: J( U6 J" Q
BUS_NAME = IDE_DATA_BUS0 T! l( A2 M( N6 L9 |& P" D
LOGICAL_PATH = @ls2f_motherboard.schematic1(sch_1):ide_d9
( {- L+ _8 }" _6 j! N) n8 v NET_SPACING_TYPE = IDE
2 x: V2 L6 y9 e( Q+ e TOTAL_ETCH_LENGTH = 2000 MIL:
8 v2 h# G3 h$ x' a Electrical Constraints assigned to net
6 h- H, x& X6 i% [9 b% ? b total etch length: min=2000 MIL max=none% C9 w2 H. @% _" y* p' q
Constraint information:
) p3 w. O1 o* x9 C, p (RDly) (Xnet=IDE_D9) U3.D17 to IDE1.6 min= 2191 MIL max= 2391 MIL actual= 2362 MIL' u- i# ]7 L, z5 B9 E
target= (IDE_D9) U3.D17 to IDE1.64 N+ k% }- _8 A+ w- v0 q% g' m2 i
(6802,2198) pin U3.D17,BI,TOP/TOP
, N1 N" w- ~8 M; q 506 MIL cline TOP
9 C- B) _: M" @- u U0 Z) P (6623,1782) pin RN6.2,UNSPEC,TOP/TOP/ h i& |9 }, u; {5 V8 R
(6623,1718) pin RN6.1,UNSPEC,TOP/TOP
- H9 h; }0 B4 `7 T 41 MIL cline TOP5 s. Q) [: I0 }+ f! V! V
(6623,1677) via TOP/BOTTOM
M+ k6 r: ?: o* N0 L1 m. i) s 746 MIL cline TOP% F* ?+ I0 }5 u* p1 z, H& K7 C. _
(6597,942) via TOP/BOTTOM
+ F3 ^4 |" I$ X/ a5 \7 e/ r 1070 MIL cline TOP1 k1 k) y# O3 n3 R; c K
(5901,376) pin IDE1.6,BI,TOP/TOP7 f( u) a- f" M' V- K
(totE) (Xnet=IDE_D9) min= 2000 MIL actual= 3168 MIL' r$ K' \, l1 p& j! A3 z
805 MIL cline BOTTOM
" C; X3 t4 t" p" c& _& w, N 41 MIL cline TOP
3 H/ Z, \$ J E6 R2 k 746 MIL cline TOP
# d; {! `5 {9 p& J2 p 1070 MIL cline TOP
4 j. l: ~# O: c& O. u$ M! e0 e8 ` 506 MIL cline TOP3 q9 l1 O& i% ^: ~
Member of Groups:3 }8 ]: c) H/ U/ G, H# i w
XNET : IDE_D95 S' s+ C j- y& b4 d2 g* v- _* c+ F% \
. [: y8 j# X& b先谢谢了。。 |
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