How to perform pole zero analysis with spice3f? - Page 4

 


habib.bouaziz-viallet schreef:


thanks for the reply,
I configured ngspice with --enable-xspice and installed it (make, make
install). However when I try to simulate my circuit, only AC-analysis
is performed correctly, concerning pole-zero analysis, I still get the
message:
Error: no data saved for pole-zero analysis; analysis not run

I also tried to configure it with --enable-pzdebug the resulting
executable however also does not work properly for pole-zero analysis
with my circuit

Could you please tell me which options you enabled for configuring
ngspice. Is it also possible to show me a fragment of the result of the
pole-zero analysis you got.

shukran ilak wa ma3assalaama
hugo

 

Le Tue, 09 Jan 2007 23:40:10 -0800, hugocoolens@gmail.com a écrit :


you're welcome.

I've installed ng-spice-rework revision 17 on my debian machine.
What is the result of ngspice --version on yours ?

Are you sure ./configure-make-make install process worked well ?


I have been installed ngspice with xspice enhancement and (may be) with
other like readline ... i did not remeber exactly.

Here the result of your test circuit :

******
** ngspice-17 : Circuit level simulation program
** The U. C. Berkeley CAD Group
** Copyright 1985-1994, Regents of the University of California.
** Please submit bug-reports to: ngspice-bugs@lists.sourceforge.net
** Creation Date: Tue Jan  9 13:07:17 CET 2007
******

Circuit: test

ngspice 32 -> run
Doing analysis at TEMP = 300.150000 and TNOM = 300.150000

No. of Data Rows : 121

No. of Data Rows : 1
ngspice 33 -> print all
pole(1) = -2.61803e+00,0.000000e+00
pole(2) = -3.81966e-01,0.000000e+00
zero(1) = -3.33333e-01,0.000000e+00



Habib

 


habib.bouaziz-viallet schreef:


Hello Habib,
Until now I always used ngspice like this
ngspice <complete_spice_input_file

I think you use it interactively and not in batch-mode like I did until
now.

Do you just make a file with a netlist+title and then start ngspice
like this?
ngspice file_with_netlist_and_title_line.net

This is what happens with my version:
ngspice file_with_netlist_and_title_line

Could you tell which commands you enter?

regards,
hugo

 

Le Thu, 11 Jan 2007 03:59:26 -0800, hugocoolens@gmail.com a écrit :


mmh ... ok, when i do ngspice -b your_very_simple.cir

habib@aldebaran:~/GNU-TOOLS/ng-spice-rework-17$ ngspice -b
tests/polezero/test.cir Got 1 devices.
Added device: spice2poly
Got 0 udns.
Got 17 devices.
Added device: climit
Added device: divide
Added device: d_dt
Added device: gain
Added device: hyst
Added device: ilimit
Added device: int
Added device: limit
Added device: mult
Added device: oneshot
Added device: pwl
Added device: sine
Added device: slew
Added device: square
Added device: summer
Added device: s_xfer
Added device: triangle
Got 0 udns.
Got 26 devices.
Added device: adc_bridge
Added device: dac_bridge
Added device: d_and
Added device: d_buffer
Added device: d_dff
Added device: d_dlatch
Added device: d_fdiv
Added device: d_inverter
Added device: d_jkff
Added device: d_nand
Added device: d_nor
Added device: d_open_c
Added device: d_open_e
Added device: d_or
Added device: d_osc
Added device: d_pulldown
Added device: d_pullup
Added device: d_ram
Added device: d_source
Added device: d_srff
Added device: d_srlatch
Added device: d_state
Added device: d_tff
Added device: d_tristate
Added device: d_xnor
Added device: d_xor
Got 0 udns.
Got 9 devices.
Added device: aswitch
Added device: capacitor
Added device: cmeter
Added device: core
Added device: inductor
Added device: lcouple
Added device: lmeter
Added device: potentiometer
Added device: zener
Got 0 udns.
Got 4 devices.
Added device: d_to_real
Added device: real_delay
Added device: real_gain
Added device: real_to_v
Got 2 udns.
Added udn: int
Added udn: real

Circuit: test

Doing analysis at TEMP = 300.150000 and TNOM = 300.150000

No. of Data Rows : 121
Error: no data saved for pole-zero analysis; analysis not run

No. of Data Rows : 1
                                      test
                                      AC Analysis  Thu Jan 11 14:26:38  2007
--------------------------------------------------------------------------------
Index   frequency                       v(3)
--------------------------------------------------------------------------------
0       1.000000e-02,   0.000000e+00    1.003826e+00,   -7.241282e-04
1       1.122018e-02,   0.000000e+00    1.004779e+00,   -1.015776e-03
2       1.258925e-02,   0.000000e+00    1.005957e+00,   -1.422420e-03
3       1.412538e-02,   0.000000e+00    1.007406e+00,   -1.987585e-03
4       1.584893e-02,   0.000000e+00    1.009180e+00,   -2.769966e-03
5       1.778279e-02,   0.000000e+00    1.011336e+00,   -3.847810e-03
6       1.995262e-02,   0.000000e+00    1.013933e+00,   -5.323960e-03
7       2.238721e-02,   0.000000e+00    1.017029e+00,   -7.331242e-03
8       2.511886e-02,   0.000000e+00    1.020672e+00,   -1.003757e-02
9       2.818383e-02,   0.000000e+00    1.024888e+00,   -1.364975e-02
10      3.162278e-02,   0.000000e+00    1.029673e+00,   -1.841456e-02
11      3.548134e-02,   0.000000e+00    1.034976e+00,   -2.461542e-02
12      3.981072e-02,   0.000000e+00    1.040678e+00,   -3.256313e-02
13      4.466836e-02,   0.000000e+00    1.046588e+00,   -4.258011e-02
14      5.011872e-02,   0.000000e+00    1.052425e+00,   -5.497859e-02
15      5.623413e-02,   0.000000e+00    1.057824e+00,   -7.003565e-02
16      6.309573e-02,   0.000000e+00    1.062340e+00,   -8.796892e-02
17      7.079458e-02,   0.000000e+00    1.065470e+00,   -1.089173e-01
18      7.943282e-02,   0.000000e+00    1.066666e+00,   -1.329294e-01
19      8.912509e-02,   0.000000e+00    1.065357e+00,   -1.599592e-01
20      1.000000e-01,   0.000000e+00    1.060962e+00,   -1.898661e-01
21      1.122018e-01,   0.000000e+00    1.052897e+00,   -2.224147e-01
22      1.258925e-01,   0.000000e+00    1.040580e+00,   -2.572678e-01
23      1.412538e-01,   0.000000e+00    1.023440e+00,   -2.939722e-01
24      1.584893e-01,   0.000000e+00    1.000927e+00,   -3.319367e-01
25      1.778279e-01,   0.000000e+00    9.725489e-01,   -3.704075e-01
26      1.995262e-01,   0.000000e+00    9.379161e-01,   -4.084501e-01
27      2.238721e-01,   0.000000e+00    8.968150e-01,   -4.449477e-01
28      2.511886e-01,   0.000000e+00    8.492860e-01,   -4.786306e-01
29      2.818383e-01,   0.000000e+00    7.957026e-01,   -5.081437e-01
30      3.162278e-01,   0.000000e+00    7.368267e-01,   -5.321557e-01
31      3.548134e-01,   0.000000e+00    6.738182e-01,   -5.494980e-01
32      3.981072e-01,   0.000000e+00    6.081827e-01,   -5.593124e-01
33      4.466836e-01,   0.000000e+00    5.416548e-01,   -5.611721e-01
34      5.011872e-01,   0.000000e+00    4.760337e-01,   -5.551478e-01
35      5.623413e-01,   0.000000e+00    4.130029e-01,   -5.417980e-01
36      6.309573e-01,   0.000000e+00    3.539742e-01,   -5.220863e-01
37      7.079458e-01,   0.000000e+00    2.999834e-01,   -4.972483e-01
38      7.943282e-01,   0.000000e+00    2.516529e-01,   -4.686398e-01
39      8.912509e-01,   0.000000e+00    2.092144e-01,   -4.375976e-01
40      1.000000e-00,   0.000000e+00    1.725738e-01,   -4.053341e-01
41      1.122018e+00,   0.000000e+00    1.413972e-01,   -3.728731e-01
42      1.258925e+00,   0.000000e+00    1.151969e-01,   -3.410241e-01
43      1.412538e+00,   0.000000e+00    9.340711e-02,   -3.103862e-01
44      1.584893e+00,   0.000000e+00    7.544201e-02,   -2.813697e-01
45      1.778279e+00,   0.000000e+00    6.073589e-02,   -2.542271e-01
46      1.995262e+00,   0.000000e+00    4.876791e-02,   -2.290868e-01
47      2.238721e+00,   0.000000e+00    3.907462e-02,   -2.059831e-01
48      2.511886e+00,   0.000000e+00    3.125396e-02,   -1.848836e-01
49      2.818383e+00,   0.000000e+00    2.496383e-02,   -1.657102e-01
50      3.162278e+00,   0.000000e+00    1.991737e-02,   -1.483562e-01
51      3.548134e+00,   0.000000e+00    1.587682e-02,   -1.326984e-01
52      3.981072e+00,   0.000000e+00    1.264690e-02,   -1.186065e-01
53      4.466836e+00,   0.000000e+00    1.006830e-02,   -1.059494e-01
54      5.011872e+00,   0.000000e+00    8.011792e-03,   -9.459890e-02


Index   frequency                       v(3)
--------------------------------------------------------------------------------
55      5.623413e+00,   0.000000e+00    6.373018e-03,   -8.443311e-02
56      6.309573e+00,   0.000000e+00    5.067977e-03,   -7.533750e-02
57      7.079458e+00,   0.000000e+00    4.029246e-03,   -6.720592e-02
58      7.943282e+00,   0.000000e+00    3.202825e-03,   -5.994080e-02
59      8.912509e+00,   0.000000e+00    2.545535e-03,   -5.345311e-02
60      1.000000e+01,   0.000000e+00    2.022901e-03,   -4.766197e-02
61      1.122018e+01,   0.000000e+00    1.607422e-03,   -4.249425e-02
62      1.258925e+01,   0.000000e+00    1.277184e-03,   -3.788400e-02
63      1.412538e+01,   0.000000e+00    1.014732e-03,   -3.377191e-02
64      1.584893e+01,   0.000000e+00    8.061749e-04,   -3.010474e-02
65      1.778279e+01,   0.000000e+00    6.404587e-04,   -2.683477e-02
66      1.995262e+01,   0.000000e+00    5.087920e-04,   -2.391927e-02
67      2.238721e+01,   0.000000e+00    4.041842e-04,   -2.132003e-02
68      2.511886e+01,   0.000000e+00    3.210779e-04,   -1.900288e-02
69      2.818383e+01,   0.000000e+00    2.550557e-04,   -1.693731e-02
70      3.162278e+01,   0.000000e+00    2.026071e-04,   -1.509609e-02
71      3.548134e+01,   0.000000e+00    1.609423e-04,   -1.345489e-02
72      3.981072e+01,   0.000000e+00    1.278446e-04,   -1.199203e-02
73      4.466836e+01,   0.000000e+00    1.015529e-04,   -1.068816e-02
74      5.011872e+01,   0.000000e+00    8.066779e-05,   -9.526003e-03
75      5.623413e+01,   0.000000e+00    6.407761e-05,   -8.490183e-03
76      6.309573e+01,   0.000000e+00    5.089923e-05,   -7.566971e-03
77      7.079458e+01,   0.000000e+00    4.043106e-05,   -6.744131e-03
78      7.943282e+01,   0.000000e+00    3.211576e-05,   -6.010757e-03
79      8.912509e+01,   0.000000e+00    2.551060e-05,   -5.357124e-03
80      1.000000e+02,   0.000000e+00    2.026388e-05,   -4.774564e-03
81      1.122018e+02,   0.000000e+00    1.609623e-05,   -4.255350e-03
82      1.258925e+02,   0.000000e+00    1.278573e-05,   -3.792596e-03
83      1.412538e+02,   0.000000e+00    1.015609e-05,   -3.380162e-03
84      1.584893e+02,   0.000000e+00    8.067282e-06,   -3.012578e-03
85      1.778279e+02,   0.000000e+00    6.408079e-06,   -2.684967e-03
86      1.995262e+02,   0.000000e+00    5.090124e-06,   -2.392982e-03
87      2.238721e+02,   0.000000e+00    4.043233e-06,   -2.132750e-03
88      2.511886e+02,   0.000000e+00    3.211656e-06,   -1.900816e-03
89      2.818383e+02,   0.000000e+00    2.551111e-06,   -1.694105e-03
90      3.162278e+02,   0.000000e+00    2.026420e-06,   -1.509874e-03
91      3.548134e+02,   0.000000e+00    1.609643e-06,   -1.345677e-03
92      3.981072e+02,   0.000000e+00    1.278585e-06,   -1.199336e-03
93      4.466836e+02,   0.000000e+00    1.015617e-06,   -1.068910e-03
94      5.011872e+02,   0.000000e+00    8.067332e-07,   -9.526669e-04
95      5.623413e+02,   0.000000e+00    6.408111e-07,   -8.490654e-04
96      6.309573e+02,   0.000000e+00    5.090144e-07,   -7.567304e-04
97      7.079458e+02,   0.000000e+00    4.043245e-07,   -6.744368e-04
98      7.943282e+02,   0.000000e+00    3.211664e-07,   -6.010924e-04
99      8.912509e+02,   0.000000e+00    2.551116e-07,   -5.357242e-04
100     1.000000e+03,   0.000000e+00    2.026423e-07,   -4.774647e-04
101     1.122018e+03,   0.000000e+00    1.609645e-07,   -4.255409e-04
102     1.258925e+03,   0.000000e+00    1.278587e-07,   -3.792638e-04
103     1.412538e+03,   0.000000e+00    1.015618e-07,   -3.380192e-04
104     1.584893e+03,   0.000000e+00    8.067337e-08,   -3.012599e-04
105     1.778279e+03,   0.000000e+00    6.408114e-08,   -2.684982e-04
106     1.995262e+03,   0.000000e+00    5.090146e-08,   -2.392993e-04
107     2.238721e+03,   0.000000e+00    4.043247e-08,   -2.132757e-04
108     2.511886e+03,   0.000000e+00    3.211665e-08,   -1.900822e-04
109     2.818383e+03,   0.000000e+00    2.551116e-08,   -1.694109e-04
110     3.162278e+03,   0.000000e+00    2.026424e-08,   -1.509876e-04
111     3.548134e+03,   0.000000e+00    1.609646e-08,   -1.345679e-04
112     3.981072e+03,   0.000000e+00    1.278587e-08,   -1.199337e-04


Index   frequency                       v(3)
--------------------------------------------------------------------------------
113     4.466836e+03,   0.000000e+00    1.015618e-08,   -1.068911e-04
114     5.011872e+03,   0.000000e+00    8.067338e-09,   -9.526676e-05
115     5.623413e+03,   0.000000e+00    6.408114e-09,   -8.490659e-05
116     6.309573e+03,   0.000000e+00    5.090146e-09,   -7.567308e-05
117     7.079458e+03,   0.000000e+00    4.043247e-09,   -6.744370e-05
118     7.943282e+03,   0.000000e+00    3.211665e-09,   -6.010926e-05
119     8.912509e+03,   0.000000e+00    2.551116e-09,   -5.357243e-05
120     1.000000e+04,   0.000000e+00    2.026424e-09,   -4.774648e-05

CPU time since last call: 0.026 seconds.

Total CPU time: 0.026 seconds.

Current dynamic memory usage = 135168,
Dynamic memory limit = -495617.



Yes of course because i want to do "print all" in order to make PZ
analysis !!! (do this "? .pz" within ngspice)

Strange,

strange.

Habib

 

schrieb im Newsbeitrag

Hello Habib,

You reported in a previous reply the result of the PZ-analysis.
How have you achieved that?
I see an error message about PZ-analysis in your report above.

Best regards,
Helmut