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一个DDR时钟差分线设置为T型走线,但是连上线后,出现DRC错误。
; i2 |2 O% m$ D% N" I5 f请教一下,是哪里出错了呢,正确的走线方式又是怎么样的呢?
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$ g1 a% T( [& J, E& b5 H9 d1 s错误如下:* a1 o" _. i+ g7 [: N$ \) @4 y
LISTING: 1 element(s)# F1 y; ]9 _4 V6 W- T
0 a: c* r9 ^ ?) a < DRC ERROR >/ s2 r- f! s& p( S0 h
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Class: DRC ERROR CLASS
7 w' K! Q* B. z- j" Z Subclass: ALL
' n' O$ W" f7 H4 M# w& m/ w* E- d. } Origin xy: (-772.35 1153.00)) e% c& ` a8 Q# l& n
Constraint: Net Schedule Topology# J$ N3 I o; G, P" q
Constraint Set: ECS2
% Y! w, F4 u; h9 z Constraint Type: NET ELECTRICAL CONSTRAINTS
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Constraint value: VERIFY
, h6 {6 {! ]% K4 E& s% [# d- z% h Actual value: DOES NOT VERIFY0 k; h) n, f) S4 i6 y; G' s$ f
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- - - - - - - - - - - - - - - - - - - -
[1 q4 K U% k+ f Element type: SYMBOL PIN
1 o* a0 m1 v# E7 s Class: PIN/ F# s v3 r8 y& E
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PIN: C254.1
, M4 R. H$ q% @1 ~% L pinuse: UNSPEC
3 M# u: T8 O& r8 J9 w location-xy: (-772.35 1153.00) ' J0 _2 ]& u5 m; [/ K
part of net name: DSCK#& W2 ~- ^9 y/ }% x$ G. a
- - - - - - - - - - - - - - - - - - - -
7 C2 @/ N S# ]+ F5 \' z" W Element type: RATSNEST TPOINT5 }" a7 @/ ~$ ^8 g
Class: DRC ERROR CLASS3 [- A: X! O6 \ F+ x$ w' D p' J7 W
Subclass: TOP: W# F4 q0 ~2 L' J) m
- v+ N3 c" ~: D* @) a% w Name: DSCK#.T.1
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4 D* F. S3 y9 ^5 B( L$ M" `$ F6 k (-745.00 970.00)
3 i% w$ z4 ?6 J, \2 Q
9 y- g- ^6 O4 {4 y4 _) V - - - - - - - - - - - - - - - - - - - -
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