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A few new options has been added to the list of SPICE3 options.
These are :
- cptime : Limits the CPU time to the given number of seconds.
This is useful especially when it shall be avoided to kill the
whole SPICECAD process when the simulation time exceeds useful limits
- gminsteps : the number of steps during gmin stepping is now
adjustable. Its default has been increased from 10 to 100.
It can be overridden using :
.option gminsteps=200 .
- srcsteps : the number of steps during source stepping is now
adjustable. Its default has been increased from 10 to 100.
It can be overridden using :
.option srcsteps=200 .
- delmin : The normal spice3 kernel sets delmin to a constat
value which may be too high during runtime. Although convergence
could be achieved, spice3 halts the simulation saying 'Timestepp too small'.
Now, delmin is set by default to 1e-15. If this still causes
'Timestepp too small'
errors, it can be overridden using :
.option delmin=1e-16 .
Next: importing x-y files during
Up: Extensions of SPICE3
Previous: MOS models containing geometry
Martin Maschmann
1999-10-10