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jacklee_47pn 发表于 2012-2-22 21:54 6 U: B( L( z1 Y6 x5 T7 d8 j6 i' b
不清楚你的仿真電路是怎樣,有可能是信號經過不同級數的邏輯閘,信號延遲速度不一致,到最後加總的時候產生 ... & O* G2 J3 C! v# b; E7 t
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8 U6 H9 m8 d3 `8 n V( A& E
测试激励:
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2 V6 @+ O1 _' c; Digital input pattern for static logic
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Q" {- ]0 K0 c& a0 i2 nradix 4444 4444 4444
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; List the pin names" ~3 ~* V* L8 `& B/ X! b9 s
vname ain[15:0] bin[15:0] sum[15:0]' k, _8 B9 U. I8 s+ ~9 M. D; m) s
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; Define pin I/O
6 f8 d$ a4 O/ l! s+ M' aio iiii iiii oooo
0 \/ H I& z" e4 V/ Z% d# m) ?
, G! M2 S% {2 q2 B( l+ u; Define time unit% A$ p. ]- d7 ?# A4 r2 |
tunit ns
" z9 E8 m1 l0 a: |1 p; Define slope of signal edge8 b& A# V4 ~" D6 Z; W2 J
slope 0.2
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; Define high voltage (2.5V)4 N# t5 i5 ~' P; T, k) c2 O
vih 2.5 FFFF FFFF 0000
, L4 S7 y8 J/ o2 O& I/ d( lvoh 2.25 0000 0000 FFFF3 N! b1 p: S. V
8 o Y9 k6 B2 u W% K4 A; Define low voltage (0V)" O) E+ q0 N+ C: i6 B. ?
vil 0.0 FFFF FFFF 0000% b l. e# o8 V0 n# \% p, I( X' a
vol 0.25 0000 0000 FFFF
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; Define threshold voltage (1.25V); v: W& X' S& K! p; B% K T
Vth 1.25 0000 0000 FFFF
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; The following are the vectors
' \! L- R0 {& }& z1 X% _; x[15:0] y[15:0] s[15:0]# Z5 |# ] H% m- n
: T) P. E; Z7 H1 y& ~2 _, Hperiod 7
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0000 0000 xxxx
( P2 O5 x E J; b. p& p 0000 0000 00009 c; o; l, O2 a' T6 e- e$ E
00A0 0001 xxxx
: M( ?* G# s; X! J% P2 Z" s 00A0 0001 00A1* p! [5 U/ @! ~* {. ?& E
0031 0023 xxxx
[: w1 R! v* {. V# |( [" n. D 0031 0023 0054
9 [3 t: @- l+ b2 E3 K3 o+ G 0015 0089 xxxx
" L* c$ i' C8 ^# z) z, j- v+ ?3 y 0015 0089 009E
K. H5 i$ H1 L/ w" d) A( r3 q2 v3 H 0028 0099 xxxx
0 l# x8 k6 I* P" \ V1 A, a 0028 0099 00C1
- ^0 o& M+ ~0 A9 F; e 00FF 00FF xxxx
( Q/ W2 J2 H3 e8 K 00FF 00FF 01FE2 L* J# M" b& q0 B2 Z7 }
00FF 0001 xxxx% L# O: D5 f# z, { A
00FF 0001 0100
9 R3 ?& N+ r* `0 l, V1 T 0001 00FF xxxx
, r2 h3 Q L( ]& S 0001 00FF 0100( ~9 u0 h$ Y" |/ W9 H
00F1 000F xxxx
/ f$ B L( ~3 {- p% q, N5 l. W 00F1 000F 0100+ K2 a* z N6 ?4 ]; x
0001 0005 xxxx, O1 |' j# `( z( Z, s
0001 0005 0006
$ G% `& ^1 T! h S' Y2 |8 M \7 j 000A 0001 xxxx
. Q# S. ]) x( Y 000A 0001 000B
- J5 a1 i2 o9 ] 000A 0002 xxxx
( a+ L% e! o2 p$ \9 t3 Z! n 000A 0002 000C
/ b" z% z& ]& j" Y4 E FFFF 0001 xxxx
# o0 H4 W! Y0 y6 P: N+ p" S0 u FFFF 0001 00005 V+ V- d" M$ ?) ~" \4 W
FF01 00FF xxxx
1 \1 d, s5 L2 u# l. ^! }1 i FF01 00FF 0000
. c2 F/ r7 }# h' ~- v& T8 ? z 1234 4321 xxxx, h( e+ n1 T) Q. J6 ]
1234 4321 5555
* n" N/ u1 V4 T; _5 @: d FEDC 0123 xxxx2 A1 h5 Y) A' F/ M' X
FEDC 0123 FFFF
/ l4 y( p" D, [* H FE00 02FF xxxx
; Y5 v9 o! I$ N' z# n7 K- Q FE00 02FF 00FF% @: Q, y" [) w: x& W! _+ F! P
25AD 52EB xxxx2 ~% D. N' s: h
25AD 52EB 78988 P+ j# k) Z3 d$ H0 S; X" h" H
1200 4540 xxxx
! C, n6 b) S1 Q4 K5 y) z 1200 4540 5740
9 L# `0 K/ e- h- c* v 0380 AAA0 xxxx+ o7 [( i; Q% P" G+ j* V; T
0380 AAA0 AE207 U5 m$ L ?5 `
0000 0000 xxxx
: s6 u* Q4 b, a 0000 0000 0000
5 E# Z* V0 d' I" e0 Q2 | FC62 5D76 xxxx
4 ~" Q# Q. c1 r" v FC62 5D76 59D8
- c, e- N9 P4 f- j4 J j4 j; y 9C23 B1DD xxxx
, O9 F" H2 k, o 9C23 B1DD 4E00 h( D( P3 K" x, h/ [9 |' [& R# x
E532 2A01 xxxx
) Q6 h9 T1 X2 k2 @' p' I! G E532 2A01 0F33# C) B5 I' v( g- y4 D' x
8610 1423 xxxx7 {6 b2 @$ V$ H9 j$ d* L4 B
8610 1423 9A33
! n/ b$ \- @; g7 g! z 98DE C198 xxxx
" T! G2 G$ a+ e; Q' ~' x* u 98DE C198 5A76
6 a1 ~- [$ @2 [ {. I$ q) ^* x% Z: e 4C7E 0076 xxxx+ Z9 [" e( _( E" w" z* o
4C7E 0076 4CF4; `, a) N9 M3 A* l4 N! }( H8 l
AA64 06E5 xxxx3 f3 E* r V5 G3 W
AA64 06E5 B149
3 V; j8 h% n, w: a. I. U) a$ J; U 6ADB 1921 xxxx
' @% Z" y3 h; g5 ^ 6ADB 1921 83FC9 N, x# @7 F/ z* d
98A8 228D xxxx
2 @# A8 R& o( d 98A8 228D BB352 @; R( x1 I" M j
9FF6 209F xxxx
- ?. e, U" n& i1 z$ O 9FF6 209F C0952 G9 K: i7 E4 |% G- i1 u6 R
D936 13A5 xxxx/ E( ]3 a5 {6 Z. m
D936 13A5 ECDB
$ f' C5 S. J! M/ J: t6 D E3C9 9C0A xxxx; k2 L! P9 Y$ Y+ S+ `
E3C9 9C0A 7FD3
5 q7 z) s) R: z9 g4 ]2 H5 a FC92 2B45 xxxx
* b% d9 Q2 r& z) n- ?( ]- Z* k FC92 2B45 27D7
; W& w* L& V% N1 i0 P, \$ B, Y 0E7B B42F xxxx" A1 \; O# Q& @" E" w
0E7B B42F C2AA/ `1 t4 @1 w9 C% v+ t
8E9A E413 xxxx
# G; f6 c" k- b% J3 a( j3 h- L 8E9A E413 72AD* e1 o2 L" H$ q! H" @
7EF1 AC5B xxxx
3 s+ j" W; t' g# w/ ^9 U5 t 7EF1 AC5B 2B4C4 o- D0 T& Z( v, h
3142 6F41 xxxx& Q0 R8 ~7 k) J( I
3142 6F41 A083
# {, B0 M: A2 B) Q& ^9 E FB97 FC28 xxxx
$ e9 k; I% o. q* x FB97 FC28 F7BF) }) r: m- f9 x) _7 c& P/ R4 U1 C4 o9 b
A235 8DD6 xxxx
, v3 G0 Z+ m- h# M# u; V A235 8DD6 300B
" i3 e$ H# W$ H. n7 W 9D1E 30A2 xxxx
. T. ~8 i5 O# N; o) O8 g: d 9D1E 30A2 CDC06 ]6 K( Y2 M" x$ E' {. S( f
1106 BC93 xxxx
: h% V6 y- K/ ^1 Y) t 1106 BC93 CD99
3 q" ]$ h* l2 C' F. S 0622 2FE8 xxxx9 \3 C& z, Z# T, d
0622 2FE8 360A8 U7 A, s0 |6 b, d. _& N
BBE5 AF0C xxxx2 ~+ Q8 c8 a# X2 j: U+ K3 Y% g* P+ w
BBE5 AF0C 6AF1
?% z" X+ J4 Z; n 9E8B 98B3 xxxx7 C# Y6 B# I/ B+ f; s( M. T
9E8B 98B3 373E
$ B! l; {& z7 ]! N C908 9CB0 xxxx
9 X9 I& g0 T) g! T# g. [% \ C908 9CB0 65B8& p1 }9 c! R2 E0 b6 }* E4 k3 ^6 T
FA12 2910 xxxx
9 |& ?+ }& t+ t( Y ^( f FA12 2910 23225 E! b g. n2 d/ M( G
BE0B 3439 xxxx4 d3 v, c3 z _% T3 `2 r" o: x
BE0B 3439 F244
2 o: W- |" a1 s" e: x; V 88B8 9D2B xxxx
. ?4 a, T L% q* Z4 A 88B8 9D2B 25E3
( D4 m8 X1 j+ O6 q5 u5 P A44F 37F0 xxxx- U4 N. Q# ?+ r
A44F 37F0 DC3F
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