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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。" U8 u$ t p7 L
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?$ b' L1 M5 K: q) f! W- u' w
@) Q4 v4 \! A/ j) L% U4 l0 {错误如下:
. p5 B& o0 X5 _8 s4 K& NLISTING: 1 element(s)
( X2 Z" M: L: b2 l1 g
/ V8 U6 O, @6 G7 w < DRC ERROR >
5 Z+ r* Y6 t- d' X- U% m" N1 x# O' E7 j! C% l7 Z6 k7 F
Class: DRC ERROR CLASS y* h; r. ]0 R6 b! ^9 F
Subclass: ALL
3 [' o: I+ Z/ y' f- s, @# X& C. P. B' f- L Origin xy: (-772.35 1153.00)
& Y. C, ~ Q d9 L! ~) A8 m1 M. N Constraint: Net Schedule Topology2 H& |$ F8 q+ i4 V- G/ w( I
Constraint Set: ECS25 B) t, I3 f5 q" v+ g$ Q( R& q, c0 {. t
Constraint Type: NET ELECTRICAL CONSTRAINTS
2 E# R0 y. t+ M* n$ q5 X
3 E. a7 I3 d% M% R+ Z Constraint value: VERIFY
. p; R- ] q9 [: d' |, f Actual value: DOES NOT VERIFY; c) m8 x- C) n
3 J% P7 Z( L5 H0 @) k; G - - - - - - - - - - - - - - - - - - - -
% A0 h% U& `, r) ~ Element type: SYMBOL PIN3 g/ T* ?4 i; M% {8 q& i0 b$ Q
Class: PIN% _0 c9 J! ~! d5 q0 A
8 x% `' _3 I* R3 c. P2 b PIN: C254.1! l t7 d7 W5 F( w* R$ V% {
pinuse: UNSPEC
+ a C: S, E+ _ location-xy: (-772.35 1153.00) * k7 G1 T3 m0 ?' h5 C
part of net name: DSCK#4 L- q. h7 f! y' {9 N8 l- Q
- - - - - - - - - - - - - - - - - - - -
5 a+ `% T" }9 q9 c' l6 D& G# B9 s Element type: RATSNEST TPOINT7 K" O, ?' J2 \2 d2 L7 f$ |( l* z$ H
Class: DRC ERROR CLASS
! J8 D: D! h3 @1 v Subclass: TOP
+ ~& [: A" Z' i) E6 b4 f1 r2 F) D7 }, z7 @, {" ^
Name: DSCK#.T.1; J9 {, F' o7 x/ Q3 w+ R
* b7 ~* i6 O( T. Q5 C2 K8 `: u (-745.00 970.00)) [9 _* A" N; T- q" }/ J
4 c* Y9 R' Z+ R1 c# b
- - - - - - - - - - - - - - - - - - - -
5 m' {: v; e2 ^$ \; }
! B; {, `2 r# x# Z/ P4 `. V8 ?9 X
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