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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？& v9 u" J* V, U6 k9 T8 d
Circuit: *Main mtcoms file
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Warning: There are nodes with less than 2 connections.' I1 R6 D8 ?% x) Q& c$ J4 N- G
The table of nodes with less than 2 connections is generated after sourcing...
7 ~7 [$ K1 `; f1 w! F% k, X& A) t. `- z0 w& S3 B+ ]& ]3 S( D
$ S d: \+ ~) ]2 U8 n" s2 q
" C" G3 F% t. f H
***warning***: the following singular supplies were terminated to 1 meg resistor
7 U% m. D" w U. d
( {' S( e3 r! R% X& zsupply node1 node2" m. v, t% D7 Y- ?9 C6 _8 @# ^0 r# ^
vdd vdd 0
" d* _6 f# [" M+ Y2 Bv1 a 0
( Y2 w. X S& r% a bv2 b 03 }% g: ^! d- E, ]
v3 sl 0$ q, J) D+ A1 ^ ~
3 h6 M: ^5 T; `) K) @+ J0 [, k. h/ z
( x% \& k' V, @) `) ]4 `
The following nodes have less than 2 connections:
+ C6 f" j0 K/ l3 o3 k6 F-------------------------------------------------------------------------------------
3 B( E% C' \2 s0 v# g5 S| sl | b | a | vdd | F7 h' D A( k" d
-------------------------------------------------------------------------------------# h& M, O* |0 v
一个描述netlist的文件：: l9 P& W. _+ M
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4 o: P0 M' z) W( d) K" p0 M: t- ]* SPICE export by: S-Edit 15.13& O2 L# c/ ?% ]. W- H- }
* Export time: Tue Jun 12 11:15:52 20121 k( Y- e: x% b. h
* Design: mtcoms, C, ?+ U4 J% I. F7 I3 o4 l
* Cell: Cell0# V6 ^6 Y2 |2 I% d: _# |
* Interface: VResistor
& _4 s ]# w) O H, |* View: VResistor
/ C' b, x! @. P \+ ?+ O* View type: connectivity
4 S7 s# n' U; M1 [* G% W* Export as: top-level cell
2 M6 I; ]% m5 ]9 }) L3 o* Export mode: hierarchical
3 @6 N, A) g# R$ Q. `3 H( j* Exclude empty cells: no
3 ?+ x; }2 M) Y8 h* Exclude .model: yes8 o" R) d+ F! f3 T; D
* Exclude .end: no
: a6 U- p4 M) l2 S* Exclude simulator commands: no
. P, ~! S1 m1 T* R* Expand paths: yes
* E4 I% Y$ k" t$ Q/ M5 e8 D+ O* Wrap lines: 80 characters! b, h( M9 Z) U1 b5 ]' N* }8 \" ^
* Root path: \\en-file\users\houx\Profile\Desktop\ankun_dong hw2\mtcoms
: x. h7 `! P2 B1 e" O# Y* Exclude global pins: no
8 p0 @: U; s( Y2 n* Exclude instance locations: no
5 J( w: f7 w5 \3 }* Control property name: SPICE G9 }# R) k& F8 P1 J0 W2 \
2 z$ N8 \ h1 O: i# P, [********* Simulation Settings - General Section *********
5 w# D/ F5 O$ H1 {4 [8 y' Z* h3 N0 {& c* b! p
*************** Subcircuits *****************
4 e! K/ t! a" D2 ~7 N# V.subckt INV A Out Gnd Vdd
" e( O* @* Z7 D+ R4 u
5 M% ^7 |! ^( ^" T5 c6 J4 K6 c*-------- Devices With SPICE.ORDER < 0.0 --------
" H6 F* D7 P0 y) x6 b* P* Design: LogicGates / Cell: INV / View: Main / Page:
0 T2 @; y' F5 G5 z+ }4 ^- O* Designed by: Tanner EDA Library Development Team u' i& {; n# n0 B, V& U
* Organization: Tanner EDA - Tanner Research, Inc.
. _5 F' z( }5 `) u+ z( @* Info: Inverter, ~* `2 @2 ^ ^0 H5 o
* Date: 06/13/07 16:17:11% i! z* O0 q- ]& ~7 x& p5 p
* Revision: 3 $ $x=7600 $y=600 $w=3600 $h=1200
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*-------- Devices With SPICE.ORDER > 0.0 --------
- b9 ~+ f v# i6 M; K# g+ gMN1 Out A Gnd 0 NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=4600 $y=2600
8 P j* @' H' C8 G% l7 `+$w=400 $h=600% ], M6 ?( Z& t, ]2 |/ i' g
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 $ ' ?; }, e' E n* c3 @* D r
+$x=4600 $y=3600 $w=400 $h=600
7 W: k+ t8 H; B* x.ends
& [; _$ O, V7 m$ S6 j
& f0 O0 Z. u2 A. [7 c
. ?2 f {" t5 ]: o( @2 i- c8 O
$ C' L6 q; `3 q: t- S/ _+ a6 _0 L*-------- Devices With SPICE.ORDER == 0.0 --------
: W2 M( s$ q4 X) e2 t% k) \***** Top Level *****
# u8 A* A( Q, UXINV_1 SL N_2 Gnd Vdd INV $ $x=350 $y=-2300 $w=900 $h=600( U/ g4 K$ w# M; b) B) B
7 U4 A. e/ `0 N! G4 d2 S( F+ ?, Z*-------- Devices With SPICE.ORDER > 0.0 --------
+ U" e* ^8 R! L% Q7 |6 U& w, f# N4 bCCapacitor_1 VDDV Gnd 1p $ $x=3100 $y=-400 $w=400 $h=600 W3 N4 p- w- `+ x- q: Y
CCapacitor_2 GNDV Gnd 1p $ $x=3100 $y=-2500 $w=400 $h=600% I) r. X X I3 [
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 $ $x=1100 , I: C! `7 V% r. \' ~
+$y=-800 $w=400 $h=600
; l* ?: P; n8 m5 t R% f7 xMNMOS_2 N_1 B GNDV GNDV NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100 2 l+ ]) M7 v& h4 s
+$y=-1500 $w=400 $h=600! D/ {: N/ f: S. c3 r8 V5 G0 \6 I
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 $
, I4 x# O: A6 s1 L! U; F' U- a- y+$x=1100 $y=-2300 $w=400 $h=600
" h$ ?; ~7 U8 NMPMOS_1 Out A VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=300
* S M6 x x4 ?+$y=-200 $w=400 $h=600% g0 s0 |# _: Q/ G) u# M3 `
MPMOS_2 Out B VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1900
% d, @4 E {! S9 Y1 _4 H: h, X+$y=-200 $w=400 $h=600. _5 G5 q3 |% t; p6 ~ E
MPMOS_3 VDDV SL Vdd Vdd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100
" o, B% x" e6 c- x( ~5 ~+$y=700 $w=400 $h=600
1 \. P- ]! [0 [* ?5 {) z* {4 J" u2 ?& Y) a0 q
********* Simulation Settings - Analysis Section *********5 k; R- T7 M( w! z7 H6 @2 _/ M5 f
.op
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********* Simulation Settings - Additional SPICE Commands *********9 ]% Z, ^8 u& F0 D
* ]# g! m, J! n.end1 W S1 R! v) h0 g3 Z" j7 r8 {
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发表于 2012-6-13 02:27
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发表于 2012-6-19 11:03