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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？# I2 q% [: N9 r/ K& g' W+ i, q+ g% T
Circuit: *Main mtcoms file
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Warning: There are nodes with less than 2 connections.( {0 L2 ~2 F$ x/ R6 j; N
The table of nodes with less than 2 connections is generated after sourcing...1 F& x0 b1 |, @9 i$ I7 T+ S
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***warning***: the following singular supplies were terminated to 1 meg resistor
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supply node1 node25 i1 k" M0 {3 o% ^$ D
vdd vdd 0
# U0 g$ {: Y* U2 n: dv1 a 00 T8 F: N! J5 h! e
v2 b 0
& s' i2 Q3 v9 H) M+ r* q2 j( Wv3 sl 01 Y. d7 f" k6 t1 k
: O1 j3 Z6 g4 k" H. U! Z- l; Q1 b0 S- G# i' r3 E2 o5 e# h. W! M$ x
The following nodes have less than 2 connections:
& g/ I& Z+ Y: | U2 x; u' ^-------------------------------------------------------------------------------------
5 N: X y' L) z| sl | b | a | vdd |; e2 t6 o1 i* `1 G, h) N, Q
-------------------------------------------------------------------------------------
/ `4 E& T+ l: W/ V1 d% ]4 p2 }一个描述netlist的文件：
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: j( \3 R' h& V# q* SPICE export by: S-Edit 15.13
* _7 g. l1 w" J2 f2 Q" Q) q* Export time: Tue Jun 12 11:15:52 2012
- c% T" H3 z- O* Design: mtcoms
- H0 \: i' e3 p* O8 g* Cell: Cell0
. p, m% W+ B' m* Interface: VResistor
# \* X8 Q4 ?" S% ?' ?* View: VResistor4 O) K6 s+ L6 W- q- C% O# r
* View type: connectivity
( B/ N" R, j' M! b& J* Export as: top-level cell# E6 k+ u( N- v
* Export mode: hierarchical3 ?9 f1 O3 c1 {8 a2 @
* Exclude empty cells: no
' l6 B1 a P. m: E* Exclude .model: yes' `: a% O% J# x" r
* Exclude .end: no F: j+ q: k: z! i3 N
* Exclude simulator commands: no7 z/ e u+ \+ i7 u& d( s) m( W$ P
* Expand paths: yes
) t( d; a- V) h- l* Wrap lines: 80 characters
7 I7 L) B# V6 i* ~* Root path: \\en-file\users\houx\Profile\Desktop\ankun_dong hw2\mtcoms
! G8 e4 \. I/ {, W* Exclude global pins: no
+ Z# h% w; F5 g4 _* Exclude instance locations: no
0 J# ^1 {' s- X4 X$ d1 F( X: ~* Control property name: SPICE& k. e6 T# c6 g4 K" T, I% q. p
/ L. }% W+ Z' f$ k; N5 T********* Simulation Settings - General Section *********
/ \* I5 ~3 q, S
+ g1 t% @% n3 [& x) w7 [9 M* V1 s*************** Subcircuits *****************
, ~1 y) I7 E" g/ r.subckt INV A Out Gnd Vdd 4 o. H( ]7 A$ `7 I+ ?( z
6 N1 l9 E- i d" @$ ^# B*-------- Devices With SPICE.ORDER < 0.0 --------
$ F: D( `1 m: s/ Q% @8 w* Design: LogicGates / Cell: INV / View: Main / Page: ; ?' j& {, ?. i8 W U9 }+ t, _
* Designed by: Tanner EDA Library Development Team: X% B$ W' @1 Y2 b8 t
* Organization: Tanner EDA - Tanner Research, Inc.% l6 D o4 o. e7 t" W* Y: b
* Info: Inverter
( _' A I3 ]: d. J. f1 m* Date: 06/13/07 16:17:113 }! n$ t6 C2 v
* Revision: 3 $ $x=7600 $y=600 $w=3600 $h=1200
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, `8 H& j; V: [ n# h7 ?*-------- Devices With SPICE.ORDER > 0.0 --------
5 U8 A* o4 G. G# T" DMN1 Out A Gnd 0 NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=4600 $y=2600
+ T- L/ _1 P/ o R+$w=400 $h=600* H$ Y5 F+ E4 Q: L; z# G( X( l3 g: I
MP1 Out A Vdd Vdd PMOS W=2.5u L=250n M=2 AS=1.5625p PS=3.75u AD=2.25p PD=6.8u $ : j B0 O6 ]% ?( n
+$x=4600 $y=3600 $w=400 $h=6003 L4 d- [" ?8 g! w2 d
.ends
, k7 M* } }2 Z b( Q
* o7 z1 N" d& _/ O* m$ a
! o) j. X- a4 K7 T- T1 p
; c. J' }5 D2 Q- C& V/ P) x/ b*-------- Devices With SPICE.ORDER == 0.0 --------, ?7 Y. {. N- [3 I$ B
***** Top Level *****- q2 r$ V3 Y: I" L: A2 ~
XINV_1 SL N_2 Gnd Vdd INV $ $x=350 $y=-2300 $w=900 $h=600
5 i) u: ^; {; N6 H# _; y
8 Q4 Y: }4 b/ D*-------- Devices With SPICE.ORDER > 0.0 --------
5 Z7 `5 H: ^' x/ p0 |9 yCCapacitor_1 VDDV Gnd 1p $ $x=3100 $y=-400 $w=400 $h=600& g3 k; Y( K8 z5 Q& O: ^3 M& x: W+ {
CCapacitor_2 GNDV Gnd 1p $ $x=3100 $y=-2500 $w=400 $h=600
) @' T; M" \4 u# K ~3 V+ Z* PMNMOS_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
$ x6 ]+ _( |% `2 @7 h+$y=-800 $w=400 $h=600
1 a) ?+ I( S' V* F4 J, ?- O9 O+ {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 $ $x=1100
9 |+ }% G, C% U5 f5 d2 Q( j1 r9 k+$y=-1500 $w=400 $h=600! Q5 f. J9 w1 H( P( y
MNMOS_3 GNDV N_2 Gnd Gnd NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ 8 x% u% w! O3 h$ d$ k
+$x=1100 $y=-2300 $w=400 $h=600
/ g/ R$ H3 R6 H5 d' ^& XMPMOS_1 Out A VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=300 w4 T1 _7 E/ M; W1 H5 n. f! n X# {
+$y=-200 $w=400 $h=600
. l5 O+ @ y) v7 s9 cMPMOS_2 Out B VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1900 2 W6 ?! y7 g& T& X- }9 q
+$y=-200 $w=400 $h=600
9 z3 X3 k# W9 V% pMPMOS_3 VDDV SL Vdd Vdd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100 * [( p) g3 X- E+ }! L
+$y=700 $w=400 $h=600
! T0 A& h8 e( m8 T* p) p7 C3 ?/ Y& c
********* Simulation Settings - Analysis Section *********) Q" e) C1 C- t. O: |. ~# s
.op
6 o! p' B+ ^' r) F F
* O% F) h1 N3 Z9 @7 F# C********* Simulation Settings - Additional SPICE Commands *********
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- ^3 a2 i& |" X, N3 B6 `.end
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发表于 2012-6-13 02:27
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发表于 2012-6-19 11:03