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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：
% @" ? [) N# S7 v9 h% eERROR - Model Model67: The [Rising Waveform] ( i1 Z$ n, T) C. ?
with [R_fixture]=50 Ohms and [V_fixture]=0V
" U$ w. z( y7 H; V0 B" z has TYP column DC endpoints of 0.00V and 1.19v, but
- a: T" G( D' X3 ?- ?# ^* t an equivalent load applied to the model's I-V tables yields
+ P1 \3 o9 R2 L- k/ t: j different voltages ( 0.00V and 0.98V),' L) z8 E! @. f9 u# M
a difference of 0.00% and 21.94%, respectively.
1 r5 Z G, R# n) `* v4 zERROR - Model Model67: The [Falling Waveform]
0 N. A: I: `, E1 }# Z6 W2 d with [R_fixture]=50 Ohms and [V_fixture]=1.8V
" ^& X( _* x4 o0 f; S- E! g has TYP column DC endpoints of 0.63V and 1.80v, but5 q6 x! ]" d2 L' h0 D7 C. i
an equivalent load applied to the model's I-V tables yields5 C- I8 I3 R1 i& c0 M7 h `% f3 h
different voltages ( 0.88V and 1.80V),; b% Q. q+ u+ P# z
a difference of 27.06% and 0.00%, respectively.
) n9 T% F0 T( w) I" uWARNING - Model Model67 Pulldown Minimum data is non-monotonic
, p6 X7 G7 q# s- E5 p; SWARNING - Model Model67 Pullup Maximum data is non-monotonic9 c/ ]" p" D) @8 Q2 T; U
ERROR - Model Model67: The [Rising Waveform]
# c" b6 n: C& o1 ` with [R_fixture]=50 Ohms and [V_fixture_max]=0V
" K# Z; f+ ?! w1 ?1 T has MAX column DC endpoints of 0.00V and 1.38v, but
8 }3 v4 o* J; M% o an equivalent load applied to the model's I-V tables yields2 \% Z% c8 s+ l4 k
different voltages ( 0.00V and 1.15V),
/ U0 c8 [& L, \* b1 @5 I a difference of 0.00% and 20.19%, respectively.$ ~: T/ v/ [& y: z7 N! D6 W- J) d* ~
ERROR - Model Model67: The [Falling Waveform]
. }! _ G4 Q! r, m0 r( d8 M, W with [R_fixture]=50 Ohms and [V_fixture_max]=1.89V
( q; |9 a B$ E* c- P* K has MAX column DC endpoints of 0.53V and 1.89v, but
4 a5 g2 l8 O7 f Z( K) I- k% I an equivalent load applied to the model's I-V tables yields
1 u$ f: c5 z4 E& s8 z8 e: _ different voltages ( 0.84V and 1.89V),& E8 w; W1 `1 P
a difference of 29.38% and 0.00%, respectively.
( @: b: d' Q$ G% ?1 i/ D
`3 [& L7 b3 b! R% ]( n9 T4 L5 f哪位大侠知道的帮帮忙啊，不知道的也帮我分析分析吧。
6 Z/ l9 p- f( @! V我这有一段解释：This happens because the function acdc_VI_Given_VIC_VR() in acdc.c improperly
8 {( Z5 Y5 J" o* Preports the I-V/V-t intersection whenever it lies above the highest voltage in : S/ H* s# ^2 d
the I-V characteristic. This defect is likely to show itself in models lacking9 u5 t" V+ z+ I3 B* m
clamp tables and in which either the [Pullup] or [Pulldown] table does not cover
' H; I$ v' z. D' pthe range from -Vcc to 2*Vcc. Any open drain or open source model which lacks
2 n+ p9 [* U* M3 Sclamp tables is likely to meet these conditions because it is likely to lack : m' l G% T- t+ a2 J
either the [Pullup] or [Pulldown] table. In this test case, IBISCHK generates ! {. p2 V( c) o! F: A% M# y
error messages only for the MIN data because the highest voltage in the high-2 E) ], s( S. {7 x
state I-V characteristic for the minimum corner lies below the 1.8 V V-T 0 x7 M7 t- {! A3 N; D
operating voltage.
4 u" c* J4 A2 V1 P Q8 K1 b: R& s4 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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