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TERMINATION VIOLATIONS --------------------------------------------8 ^7 b! M4 c4 ~" }2 @, k2 ~) M6 x7 |4 w
** Warning(Severe) **
+ R0 i/ K& R, O' w, O& E& [8 P4 e7 f0 L Net too long!1 ?* {0 G% G5 X/ k2 j$ I
found length ............ 005.144 in
+ J5 y" j- {( b- g8 h I# p max. recommended length . 002.223 in. [6 }: k+ U" N- P( Q
. F* H$ A7 d3 U3 C0 b( p& v+ A: I9 I
SIGNAL-INTEGRITY STATISTICS ---------------------------------------. Q T1 W6 t0 l
total receiver capacitance ... 10.9 pF3 l( D5 l" ^. b7 H0 n
effective net Z0 ............. 34.6 ohms. O) ~. o$ ~8 w5 O/ N0 I7 M' f( x
termination type ............. No termination found
( L5 E) S1 M1 ]8 N ** Warning **
# e, V: H: q$ E5 w Net is source-terminated by driver impedance.
2 _% m% m1 o7 h8 o8 O, k8 {. J Wide driver impedance tolerance may hinder termination.! m. p0 @! ^( o' L9 z$ ~3 F
/ ^6 d, I4 O E' |; l
第一个warning中 max. recommended length . 002.223 in 是怎么得到的？( N( Z6 i7 q9 b$ b* S* K
第二个warning是什么意思？ |
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发表于 2010-3-30 16:44
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支持！
反对！