求助!!!!
前几天在http://bbs.eetop.cn/thread-663931-1-1.html指导下在win10系统安装了hspice2007.09,但是随后的仿真结果有很大偏差。一直就排查了一下,发现软件仿真结果里,反相器输出一直都是设置的高电平的一半,是个常量。现在正急着用,又不知道是哪里出了问题。。
语句如下:
NMOS Inverter
vdd 3 0 dc 10
vin 1 0 dc 0
m1 3 3 2 2 ntype l=12u w=2400u
m2 2 1 0 0 ntype l=12u w=24000u
.model ntype nmos(level=15 VTO=1.0)
.op
.dc vin 0 10 0.1
.option post accurate probe
.plot v(1) v(2)
.probe v(1) v(2)
.end
仿真结果有些关于准确度的语句没看懂:
**warning** the accurate option increases the cpu time but the results
are more accurate.
***accurate option sets default value of the options:
lvltim= 4 dvdt= 3 relvar= 200.00m absvar= 200.00m
ft= 200.00m relmos= 10.00m
(used for FFT control ) fft_accurate= 1
1****** HSPICE -- A-2007.09 32-BIT (Aug 28 2007) 21:15:05 06/18/2019 winnt
******
nmos inverter transfer curve
****** mos model parameters tnom= 25.000 temp= 25.000
******
******
nmos inverter transfer curve
****** dc transfer curves tnom= 25.000 temp= 25.000
******
关于仿真结果:
a: v(1)
b: v(2)
volt v(1)
(ab ) -5.0000 0. 5.0000 10.0000 15.0000
+ + + + +
0. 0. -+------+------a------+------b------+------+------+------+-
100.0000m 100.000m + + a + b + + + +
200.0000m 200.000m + + +a + b + + + +
300.0000m 300.000m + + +a + b + + + +
400.0000m 400.000m + + +a + b + + + +
500.0000m 500.000m + + +a + b + + + +
600.0000m 600.000m + + + a + b + + + +
700.0000m 700.000m + + + a + b + + + +
800.0000m 800.000m + + + a + b + + + +
900.0000m 900.000m + + + a + b + + + +
1.0000 1.000 -+------+------+--a---+------b------+------+------+------+-
1.1000 1.100 + + + a + b + + + +
1.2000 1.200 + + + a + b + + + +
1.3000 1.300 + + + a + b + + + +
1.4000 1.400 + + + a + b + + + +
1.5000 1.500 + + + a + b + + + +
1.6000 1.600 + + + a + b + + + +
1.7000 1.700 + + + a + b + + + +
1.8000 1.800 + + + a + b + + + +
1.9000 1.900 + + + a + b + + + +
2.0000 2.000 -+------+------+-----a+------b------+------+------+------+-
2.1000 2.100 + + + a+ b + + + +
2.2000 2.200 + + + a+ b + + + +
2.3000 2.300 + + + a+ b + + + +
2.4000 2.400 + + + a b + + + +
2.5000 2.500 + + + a b + + + +
2.6000 2.600 + + + a b + + + +
2.7000 2.700 + + + +a b + + + +
2.8000 2.800 + + + +a b + + + +
2.9000 2.900 + + + +a b + + + +
3.0000 3.000 -+------+------+------+a-----b------+------+------+------+-
3.1000 3.100 + + + + a b + + + +
3.2000 3.200 + + + + a b + + + +
3.3000 3.300 + + + + a b + + + +
3.4000 3.400 + + + + a b + + + +
3.5000 3.500 + + + + a b + + + +
3.6000 3.600 + + + + a b + + + +
3.7000 3.700 + + + + a b + + + +
3.8000 3.800 + + + + a b + + + +
3.9000 3.900 + + + + a b + + + +
4.0000 4.000 -+------+------+------+---a--b------+------+------+------+-
4.1000 4.100 + + + + a b + + + +
4.2000 4.200 + + + + a b + + + +
4.3000 4.300 + + + + a b + + + +
4.4000 4.400 + + + + a b + + + +
4.5000 4.500 + + + + ab + + + +
4.6000 4.600 + + + + ab + + + +
4.7000 4.700 + + + + ab + + + +
4.8000 4.800 + + + + ab + + + +
4.9000 4.900 + + + + 2 + + + +
5.0000 5.000 -+------+------+------+------2------+------+------+------+-
5.1000 5.100 + + + + 2 + + + +
5.2000 5.200 + + + + ba + + + +
5.3000 5.300 + + + + ba + + + +
5.4000 5.400 + + + + ba + + + +
5.5000 5.500 + + + + ba + + + +
5.6000 5.600 + + + + b a + + + +
5.7000 5.700 + + + + b a + + + +
5.8000 5.800 + + + + b a + + + +
5.9000 5.900 + + + + b a + + + +
6.0000 6.000 -+------+------+------+------b--a---+------+------+------+-
6.1000 6.100 + + + + b a + + + +
6.2000 6.200 + + + + b a + + + +
6.3000 6.300 + + + + b a + + + +
6.4000 6.400 + + + + b a + + + +
6.5000 6.500 + + + + b a + + + +
6.6000 6.600 + + + + b a + + + +
6.7000 6.700 + + + + b a + + + +
6.8000 6.800 + + + + b a + + + +
6.9000 6.900 + + + + b a + + + +
7.0000 7.000 -+------+------+------+------b-----a+------+------+------+-
7.1000 7.100 + + + + b a+ + + +
7.2000 7.200 + + + + b a+ + + +
7.3000 7.300 + + + + b a+ + + +
7.4000 7.400 + + + + b a + + +
7.5000 7.500 + + + + b a + + +
7.6000 7.600 + + + + b a + + +
7.7000 7.700 + + + + b +a + + +
7.8000 7.800 + + + + b +a + + +
7.9000 7.900 + + + + b +a + + +
8.0000 8.000 -+------+------+------+------b------+a-----+------+------+-
8.1000 8.100 + + + + b + a + + +
8.2000 8.200 + + + + b + a + + +
8.3000 8.300 + + + + b + a + + +
8.4000 8.400 + + + + b + a + + +
8.5000 8.500 + + + + b + a + + +
8.6000 8.600 + + + + b + a + + +
8.7000 8.700 + + + + b + a + + +
8.8000 8.800 + + + + b + a + + +
8.9000 8.900 + + + + b + a + + +
9.0000 9.000 -+------+------+------+------b------+---a--+------+------+-
9.1000 9.100 + + + + b + a + + +
9.2000 9.200 + + + + b + a + + +
9.3000 9.300 + + + + b + a + + +
9.4000 9.400 + + + + b + a + + +
9.5000 9.500 + + + + b + a+ + +
9.6000 9.600 + + + + b + a+ + +
9.7000 9.700 + + + + b + a+ + +
9.8000 9.800 + + + + b + a+ + +
9.9000 9.900 + + + + b + a + +
10.0000 10.000 -+------+------+------+------b------+------a------+------+-
+ + + + +
b
1****** HSPICE -- A-2007.09 32-BIT (Aug 28 2007) 21:15:05 06/18/2019 winnt
******
nmos inverter transfer curve
****** operating point information tnom= 25.000 temp= 25.000
******
***** operating point status is all simulation time is 0.
node =voltage node =voltage node =voltage
+0:1 = 0. 0:2 = 5.0000 0:3 = 10.0000
**** voltage sources
subckt
element 0:vdd 0:vin
volts 10.0000 0.
current -10.0000p 0.
power 100.0002p 0.
total voltage source power dissipation= 100.0002p watts
op point 0.01 1 8
dc sweep 0.01 101 208
readin 0.01
errchk 0.00
setup 0.00
output 0.00
total cpu time 0.06 seconds
job started at 21:15:05 06/18/2019
job ended at 21:15:08 06/18/2019