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请各位大侠帮我看一下这个ibis模型怎么了

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发表于 2010-7-22 17:13 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式

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请各位大侠帮我看一下这个ibis模型怎么了,这是我从TI官网上下载的,在编译的时候报错:! ~+ q, x, G, p# R- n8 ^( d
ERROR - Model Model67: The [Rising Waveform]
+ g) U% K! D% ]2 q3 ~& ^      with [R_fixture]=50 Ohms and [V_fixture]=0V
' D7 @* P% b* P+ X- _      has TYP column DC endpoints of  0.00V and  1.19v, but  f1 u( l* U  D
      an equivalent load applied to the model's I-V tables yields& e8 s) ~7 u% q5 }. o. e: U
      different voltages ( 0.00V and  0.98V),
/ o2 o; Q' v! B. ^1 ?3 Q" }9 I- q      a difference of  0.00% and 21.94%, respectively.$ e  \$ J3 [$ Q
ERROR - Model Model67: The [Falling Waveform] 1 h) i" q2 F9 ]* K7 G/ i% z) s' K+ T
      with [R_fixture]=50 Ohms and [V_fixture]=1.8V# P$ c7 t# y& [3 N5 Q1 {
      has TYP column DC endpoints of  0.63V and  1.80v, but
" t7 V4 \* Q3 n0 c8 B' D) w      an equivalent load applied to the model's I-V tables yields
  N0 N& e3 ~6 [5 v! P$ \* a( ^' |. b      different voltages ( 0.88V and  1.80V),3 c- S' ~5 a0 z6 y9 h5 ^+ ]4 a
      a difference of 27.06% and  0.00%, respectively.5 H+ `1 R  ~. n0 G# G4 Z' t
WARNING - Model Model67 Pulldown Minimum data is non-monotonic
) F( }! T+ m4 v: P) y, rWARNING - Model Model67 Pullup Maximum data is non-monotonic
" s9 C: B; z2 l- u8 k& X; @. [ERROR - Model Model67: The [Rising Waveform]
& G, @% N( h3 Y. S' ]      with [R_fixture]=50 Ohms and [V_fixture_max]=0V
% I. t5 F2 c+ q: M" Y& E: c      has MAX column DC endpoints of  0.00V and  1.38v, but/ B" B& W  i* Q3 ^. S, S  c
      an equivalent load applied to the model's I-V tables yields$ r9 u! G( c$ S& t6 q
      different voltages ( 0.00V and  1.15V),
6 h( @! L% n! C. @! Z- n9 o      a difference of  0.00% and 20.19%, respectively.3 a1 ?6 z* Q& K! j3 S
ERROR - Model Model67: The [Falling Waveform]
, ~. f" u& s5 O# m      with [R_fixture]=50 Ohms and [V_fixture_max]=1.89V0 y* k- O$ ?" P% J+ F, p( F, H4 F
      has MAX column DC endpoints of  0.53V and  1.89v, but
1 `; h5 E: @  ]5 t8 `' {% O& k8 C      an equivalent load applied to the model's I-V tables yields
# S( u, H, P  U4 _      different voltages ( 0.84V and  1.89V),
, F, F) u  q  x+ L      a difference of 29.38% and  0.00%, respectively.
, T/ F7 X6 M0 \  i6 \0 ^4 r
, `$ f6 s8 {7 m7 P! Q哪位大侠知道的帮帮忙啊,不知道的也帮我分析分析吧。  F, s4 ~+ _- n  B
我这有一段解释:This happens because the function acdc_VI_Given_VIC_VR() in acdc.c improperly 3 B- X2 a8 C3 M! A& D/ S
reports the I-V/V-t intersection whenever it lies above the highest voltage in . w0 F$ z4 l$ |$ O- k7 [
the I-V characteristic.  This defect is likely to show itself in models lacking- i7 L' s: T: H+ T1 M
clamp tables and in which either the [Pullup] or [Pulldown] table does not cover
6 o6 {+ }9 O) b% Lthe range from -Vcc to 2*Vcc.  Any open drain or open source model which lacks
) ~8 _1 a1 e) e0 n$ r3 Vclamp tables is likely to meet these conditions because it is likely to lack
* q8 L: E% S( z5 Peither the [Pullup] or [Pulldown] table.  In this test case, IBISCHK generates : @- \! [% z) G' ~$ D+ m; x
error messages only for the MIN data because the highest voltage in the high-1 C) I0 g! o7 ]  K
state I-V characteristic for the minimum corner lies below the 1.8 V V-T ' q! r. v8 m" ]- t+ P  p% k  l
operating voltage.
) H+ }/ r4 n, N6 r1 q
' S( a+ O: G9 Y/ n4 ~9 I( j( {但是缺少该怎么做啊
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