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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：, @8 M- L- W8 E6 y6 V* T
ERROR - Model Model67: The [Rising Waveform]
6 \$ g- I9 M1 L' K) F9 Y U with [R_fixture]=50 Ohms and [V_fixture]=0V
& c3 @7 b! K9 n+ I/ E, O* W; Q has TYP column DC endpoints of 0.00V and 1.19v, but
! ~. ?$ q' `8 M9 o4 c; ] an equivalent load applied to the model's I-V tables yields- c8 L0 c: e- \' ]
different voltages ( 0.00V and 0.98V),' F) ]( B( u5 ~% j d
a difference of 0.00% and 21.94%, respectively.1 v, F" F5 _$ t( p
ERROR - Model Model67: The [Falling Waveform]
- b3 _% x" E! {/ U7 N0 l; U with [R_fixture]=50 Ohms and [V_fixture]=1.8V" r- e: `; [# m, X6 W U, o
has TYP column DC endpoints of 0.63V and 1.80v, but
/ F& |2 t0 O7 C+ c: N! Z an equivalent load applied to the model's I-V tables yields
- y' H' M/ _) k" m1 I6 e different voltages ( 0.88V and 1.80V),3 j- e5 z, X. d" Q; {- u* [
a difference of 27.06% and 0.00%, respectively.* j0 l: \6 H" S; ?* w
WARNING - Model Model67 Pulldown Minimum data is non-monotonic1 p3 H. g+ M. L0 {# _5 |
WARNING - Model Model67 Pullup Maximum data is non-monotonic1 J7 J; K( q4 v0 T; K9 u u& V& @
ERROR - Model Model67: The [Rising Waveform] G% ]9 O2 v; R% R; @9 E
with [R_fixture]=50 Ohms and [V_fixture_max]=0V- c) n( F3 j+ Q4 y$ J
has MAX column DC endpoints of 0.00V and 1.38v, but
8 I4 J! W+ ?" Z6 | an equivalent load applied to the model's I-V tables yields
. t7 d, s8 D! a! f2 S9 u! U- Y different voltages ( 0.00V and 1.15V),% j, Y9 M8 W/ W' E8 Q: L8 X& R; N% r
a difference of 0.00% and 20.19%, respectively.
& \0 V, G5 Y! f9 |6 ~ERROR - Model Model67: The [Falling Waveform] 3 t( a. c+ B; J3 `! `& q: u
with [R_fixture]=50 Ohms and [V_fixture_max]=1.89V4 C, F2 ~6 X4 N+ x4 P9 z; w
has MAX column DC endpoints of 0.53V and 1.89v, but
4 Z* G6 R( P' O/ M* S an equivalent load applied to the model's I-V tables yields0 I; A$ D9 B/ j; z, h
different voltages ( 0.84V and 1.89V),6 {' z4 s7 r1 H; A; X
a difference of 29.38% and 0.00%, respectively." A5 U+ B; i( i9 H& ?7 A- S
3 [; a! n/ S7 E4 A+ H! X- t5 S4 u哪位大侠知道的帮帮忙啊，不知道的也帮我分析分析吧。
5 e6 R8 G2 N; J/ V, `我这有一段解释：This happens because the function acdc_VI_Given_VIC_VR() in acdc.c improperly 3 ~" Z6 Y G; C$ |7 b) f
reports the I-V/V-t intersection whenever it lies above the highest voltage in
" x8 c6 z' B2 c ^; ythe I-V characteristic. This defect is likely to show itself in models lacking
/ q3 X0 D& r j; k' Lclamp tables and in which either the [Pullup] or [Pulldown] table does not cover 5 H9 n( C+ _: n% w
the range from -Vcc to 2*Vcc. Any open drain or open source model which lacks ; f& ?6 e) s' J* _
clamp tables is likely to meet these conditions because it is likely to lack 9 _# v6 A, l, C: M
either the [Pullup] or [Pulldown] table. In this test case, IBISCHK generates
" `3 j/ Z9 o! T/ Ferror messages only for the MIN data because the highest voltage in the high-
0 M2 O, T7 W% I) gstate I-V characteristic for the minimum corner lies below the 1.8 V V-T 7 X2 J7 S! X9 L$ O
operating voltage.
6 i( a* K& G4 F4 V2 a
: _$ Q- L! ~7 y; o! Q! ?: @( j但是缺少该怎么做啊 |
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发表于 2010-7-22 17:13
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