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李明宗伟 发表于 2013-8-1 21:27 ![]()
- Z$ w/ Y# q; `: {% U4 v9 a什么是显示长度,什么是实际长度啊
8 Q5 g: r1 Z* H/ X% [show net 的时候显示如下,为什么会出现BOTTOM/BOTTOM,Zall=32 MIL,不知道哪边设置错了- @# _2 [& T$ z `* ~+ ^& _1 d
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Net Name: XM1_DATA15+ w5 ^1 _& ~6 A
Member of Bus: XM1-D13 Q6 E4 f2 \$ t6 R5 E& P
) m- ]( x2 q* |. m$ T0 d( d Pin count: 2
% x1 t+ }/ `0 ?0 E Via count: 4# F- d* `8 y# j4 d) I
Total etch length: 903.28 MIL
: X7 Q' w- ?0 ?2 w) V' p0 Y Total manhattan length: 430.73 MIL
: k' i S' o' j0 O& X! A# I' r Percent manhattan: 209.71%6 |9 o+ H) o! V/ y7 F8 o2 ^
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Pin Type SigNoise Model Location! h) p) V4 a. d1 x' @" F6 [
--- ---- -------------- --------* T, u! h2 m2 F1 ^+ e; z0 B' Y+ L
U4.B9 UNSPEC (-1516.62 685.41)9 d, u3 v) y' Z) b
U1.C17 UNSPEC (-1184.58 784.10)
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6 l* [& h+ p( |/ U- ^- O No connections remaining1 l2 X, u2 c( ?0 C7 L$ n0 u
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Properties attached to net
7 y% u( C7 W& [) o7 S+ G( F9 U BUS_NAME = XM1-D1% O+ Y+ }/ \0 K9 z N- P
ELECTRICAL_CONSTRAINT_SET = XM1_DATA8
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* U/ m- j/ N' b- e; i& X% q0 i8 `" e Electrical Constraints assigned to net XM1_DATA15
' i- X- s1 {) y _8 J* b( F, s relative prop delay: global group XM1-D1 from U1.C17 to U4.B9 delta=0.00 MIL tol=20.00 MIL/ o* b8 [6 W6 P O) a
* I5 Z7 N% A+ [* M& n' q' j3 X Constraint information:* ~3 l: H- k+ @7 D
(RDly) U1.C17 to U4.B9 min= 919.3 MIL max= 959.3 MIL actual= 935.28 MIL target= (XM1_DATA12) U1.C18 to U4.D15 t- M+ w' `4 h. t, R; b) j
(-1184.58,784.10) pin U1.C17,UNSPEC,BOTTOM/BOTTOM
8 Z) G8 `# G" s) P$ a (-1184.56,784.10) via GND07/BOTTOM
4 ^% `5 Q! ~' X. @0 a1 L: b4 l 18.13 MIL cline GND07+ ^! I2 y& I8 u, ?
(-1197.38,771.31) via GND02/GND07
; C9 I; ^2 c$ \( r- U! N 639.6 MIL cline ART060 X9 O: C1 f' ^
(-1368.74,567.43) via GND02/GND07
. P( \: I( z; P6 n: j; y+ i 30.94 MIL cline GND07( A9 P$ R' Q) ]: g' o X
(-1393.13,581.82) via GND07/BOTTOM
. s9 A5 B9 c$ O& I9 e1 C/ R 214.59 MIL cline BOTTOM
4 z }/ \% }0 w2 T3 H/ R (-1516.62,685.41) pin U4.B9,UNSPEC,BOTTOM/BOTTOM,Zall=32 MIL
" S7 i5 c, m) n2 |2 b1 S3 p' _& g Member of Groups:* s0 A ?! o6 X" d8 Q+ o2 p
BUS : XM1-D1
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