I'm struggling with this damn gEDA/SPICE thing - I think I have gEDA
schem figured, but I can't be sure because I can't test it. For the life
of me I can't seem to get my head around it, but then I might just be
too tired.
Can anyone point out what I'm missing? I open geda, create a sch file
(circuit), and then run gnetlist -g spice-sdb <sch-file>. I then run
ngspice (or gspiceui) but it comes up with errors over the 555 (U1) and
diodes (d?) I'm running like this:
Error on line 9 : d1 2 0 unknown
unable to find definition of model unknown - default assumed
Error on line 13 : u1 0 4 3 +9v 1 4 5 +9v unknown
unable to find definition of model +9v - default assumed
unknown parameter (4)
Doing analysis at TEMP = 27.000000 and TNOM = 27.000000
CPU time since last call: 0.040 seconds.
Total CPU time: 0.040 seconds.
Current dynamic memory usage = 0 bytes,
Dynamic memory limit = 32742.316406 MB.
Warning: can't parse '0': ignored
Warning: can't parse '0': ignored
Warning: can't parse '0': ignored
Warning: singular matrix: check nodes 1 and 1
Warning: singular matrix: check nodes 1 and 1
Note: starting dynamic Gmin stepping
Trying gmin = 1.0000E-03 Note: One successful Gmin step
Trying gmin = 1.0000E-04 Note: One successful Gmin step
Trying gmin = 1.0000E-05 Note: One successful Gmin step
Trying gmin = 1.0000E-06 Note: One successful Gmin step
Trying gmin = 1.0000E-07 Note: One successful Gmin step
Trying gmin = 1.0000E-08 Note: One successful Gmin step
Trying gmin = 1.0000E-09 Note: One successful Gmin step
Trying gmin = 1.0000E-10 Note: One successful Gmin step
Trying gmin = 1.0000E-11 Note: One successful Gmin step
Trying gmin = 1.0000E-12 Note: One successful Gmin step
Trying gmin = 1.0000E-12 Note: One successful Gmin step
Warning: singular matrix: check nodes 1 and 1
Warning: Dynamic Gmin stepping failed
Note: starting source stepping
Supplies reduced to 0.0000% Warning: singular matrix: check nodes 1 and 1
Trying gmin = 1.0000E-02 Note: One successful Gmin step
Trying gmin = 1.0000E-03 Note: One successful Gmin step
Trying gmin = 1.0000E-04 Note: One successful Gmin step
Trying gmin = 1.0000E-05 Note: One successful Gmin step
Trying gmin = 1.0000E-06 Note: One successful Gmin step
Trying gmin = 1.0000E-07 Note: One successful Gmin step
Trying gmin = 1.0000E-08 Note: One successful Gmin step
Trying gmin = 1.0000E-09 Note: One successful Gmin step
Trying gmin = 1.0000E-10 Note: One successful Gmin step
Trying gmin = 1.0000E-11 Note: One successful Gmin step
Trying gmin = 1.0000E-12 Note: One successful Gmin step
Note: One successful source step
Supplies reduced to 0.1000% Warning: singular matrix: check nodes 1 and 1
Supplies reduced to 0.0000% Warning: singular matrix: check nodes 1 and 1
Warning: source stepping failed
doAnalyses: iteration limit reached
run simulation(s) aborted
Syntax error: expression not understood 'v(5)-v(+9v) v(3)-v(2) v(5)-v(4)
v(+9v) v(1) v(2) v(3) v(4) v(5)'.
There is nada on google about any of this - but I suspect it is missing
model files or something, and before I go attaching to yet another
mailing list, I thought I'd run it by here first as I'm sure there are
some who use this and have experience with it on FreeBSD 9.
TIA guys
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