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source 总是出现以下问题，描述的时候已经说了是接地的了啊，为什么还是会当作断开的呢？
# @7 `, z3 U8 u" y R8 BCircuit: *Main mtcoms file
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u7 z& c. K, j1 a/ bWarning: There are nodes with less than 2 connections.
0 Z6 k7 h( D5 _! ~% Z4 ?The table of nodes with less than 2 connections is generated after sourcing...
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) a0 H8 F1 i9 t" [1 F
0 ?: _- {+ A1 G( O2 u***warning***: the following singular supplies were terminated to 1 meg resistor$ ~6 ?1 i S( O# R, V4 b
. \9 P- n) q$ f) G, X8 o+ ysupply node1 node2* R6 Z: E0 x O( \
vdd vdd 0
: l- h) I; U' W/ O/ R3 vv1 a 0+ h5 J9 {- j1 J8 c: U0 V
v2 b 0
: v: E; ]: H1 Dv3 sl 0: ?+ `- U0 I! p% F6 p6 A
- M9 y% p4 E" E, v2 n( [" p- V
; M' A5 x; u/ Z% P$ t" fThe following nodes have less than 2 connections:/ T. k0 b- H0 `2 T
-------------------------------------------------------------------------------------
9 V2 c# c( a j# U f/ @& Z: M| sl | b | a | vdd |
( y; V! }4 u3 T6 k0 J, a: Z-------------------------------------------------------------------------------------* K0 k e: T2 D
一个描述netlist的文件：
# z9 T. [0 h4 _* G
m, b. r# M4 }$ w- L' g7 ?$ r, Q( A& `% c
* SPICE export by: S-Edit 15.134 @ J& q- i8 @
* Export time: Tue Jun 12 11:15:52 2012# g2 ?8 q; G) M$ K9 X
* Design: mtcoms
8 K/ h8 {5 A$ l! H/ t* ?* Cell: Cell0& p$ H5 v1 q+ S
* InteRFace: VResistor
9 s$ B$ f/ l7 S- x* i5 g5 c/ Z* View: VResistor: m" N& H3 b$ U1 V3 s- `
* View type: connectivity# [; M9 d U# w5 U; Z. s2 Z4 h
* Export as: top-level cell
9 f; b* b( m/ U* Export mode: hierarchical/ o# f+ `3 ~7 P
* Exclude empty cells: no' z6 G0 J6 Q* s8 ~) [/ Q
* Exclude .model: yes/ F9 b$ p& W# i
* Exclude .end: no, B- j4 i4 h- i# n. e1 M
* Exclude simulator commands: no, ]0 B1 @4 X; {5 b4 p
* Expand paths: yes
; F2 a$ q+ W9 i( }2 F* Wrap lines: 80 characters3 t9 w2 I/ ]3 ?4 s
* Root path: \\en-file\users\houx\Profile\Desktop\ankun_dong hw2\mtcoms
! @' c) C* Y3 {* Exclude global pins: no$ ]8 H! D2 y0 L7 w: w
* Exclude instance locations: no
9 F8 J* g! k, T V1 Z* Control property name: SPICE1 g+ P7 g" y) g: Q9 }
' x1 T; p+ t9 n- A********* Simulation Settings - General Section *********
1 Q' }# @( \7 q% n. k* c' L
& G4 R. v% I% b! ~3 @/ ^- Z*************** Subcircuits *****************8 t! r+ K0 W- _4 S0 h
.subckt INV A Out Gnd Vdd
$ O# d' `8 G5 L8 h# V. T- W0 @% Y
+ }: _, n3 l/ ] g*-------- Devices With SPICE.ORDER < 0.0 --------$ A7 W7 D! y0 H' ]$ z$ d
* Design: LogicGates / Cell: INV / View: Main / Page:
: l% j& C4 r4 `$ I% k# S0 \* Designed by: Tanner EDA Library Development Team
. r8 k; u2 w$ C5 v2 q* Organization: Tanner EDA - Tanner Research, Inc.
5 T, c% \7 U) c% ?$ D6 n. E* Info: Inverter$ C' X" D- _% p$ i7 X' a
* Date: 06/13/07 16:17:11
( a# i/ c; e- X, r" [) G R* Revision: 3 $ $x=7600 $y=600 $w=3600 $h=1200. ?. v. {7 k* u' i8 m) ~. a
! D+ o) |1 G5 U*-------- Devices With SPICE.ORDER > 0.0 --------) W+ l f3 X5 \% ~
MN1 Out A Gnd 0 NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=4600 $y=2600
( K3 {' u1 b/ o4 l& U8 U9 s- @% k7 ]! H+$w=400 $h=600
% V9 F; T6 `- _& NMP1 Out A Vdd Vdd PMOS W=2.5u L=250n M=2 AS=1.5625p PS=3.75u AD=2.25p PD=6.8u $ 8 E' N1 h! N0 h) o# A& Z
+$x=4600 $y=3600 $w=400 $h=600
[4 I0 e8 }7 @7 B.ends
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' @( b2 f- q7 h9 C+ O' K; Z8 N4 v3 z* D7 m. M# t% E2 [
*-------- Devices With SPICE.ORDER == 0.0 --------5 B, l) |8 V1 C% b2 K- j# X
***** Top Level *****
& y# q3 L8 e4 P" P) [2 hXINV_1 SL N_2 Gnd Vdd INV $ $x=350 $y=-2300 $w=900 $h=600
4 N V1 S: F: G6 {, e* |7 ^
" Q6 Y( S# T9 T6 C; c*-------- Devices With SPICE.ORDER > 0.0 --------
: U+ t) \. r; E" B$ J' _CCapacitor_1 VDDV Gnd 1p $ $x=3100 $y=-400 $w=400 $h=600
4 z% ], O0 o" _; H: N4 G- R: xCCapacitor_2 GNDV Gnd 1p $ $x=3100 $y=-2500 $w=400 $h=600, q3 v& L+ x3 _. s( w
MNMOS_1 Out A N_1 N_1 NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100
9 E, E* T+ a# W+ R- w& ^( o9 u. K+$y=-800 $w=400 $h=600: ?% }% v. n! V; @
MNMOS_2 N_1 B GNDV GNDV NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100 " z) h# h6 _5 U# _. S
+$y=-1500 $w=400 $h=600
: S* \& v' H6 T% RMNMOS_3 GNDV N_2 Gnd Gnd NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ ( E8 T6 Q; _ i7 C7 B& w
+$x=1100 $y=-2300 $w=400 $h=6008 g6 {3 A% j5 t7 w! @" x: N* ]3 Z# r
MPMOS_1 Out A VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=300 0 V2 G- {" ^5 j$ ^
+$y=-200 $w=400 $h=600- L! `2 J6 H4 X& a- x
MPMOS_2 Out B VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1900
# r* L5 j3 k4 h+ X+$y=-200 $w=400 $h=6009 G* K" [; t4 R1 }! n2 x0 i1 f
MPMOS_3 VDDV SL Vdd Vdd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100 $ W$ E* _+ p! x3 l: t
+$y=700 $w=400 $h=600
9 w% F b" S G! H7 A E' z) [5 [% M: ?7 Z0 p( O$ T- b! i4 k
********* Simulation Settings - Analysis Section *********! R* i% r) M% D+ \, Q/ E
.op8 I3 u {* N# y7 ^
, T+ `: w+ B$ x; L, j7 t1 r, @
********* Simulation Settings - Additional SPICE Commands *********
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.end
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发表于 2012-6-13 02:27
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