Behavioral source in Lepton-eda about lepton-eda

[vzh]

Not for SPICE, AFAIK. It should work for Icarus Verilog but this is another story. First, please make sure the free SPICE engines such as ngspice or gnucap support such sources. Then creating your symbol for this purpose and sharing it would be the way to make Lepton better :-)

[niuniuaba]

Thanks for the advice. I found I can use voltage source symbol by changing refdes to match B source type and then the schematic capture parses it to the netlister correctly. I think we can close this issue.

[vzh]

Hi @niuniuaba,
Thank you for your feedback! I would only ask you for sharing your symbol and adding a couple of lines of description for it in order to make our FOSS tool better. Thank you in advance.
(BTW, didn't even imagine Omron engineers use our tools :-) Incidentally, I have several Omron controllers at my current work.)

[niuniuaba]

Hi @vzh,

So I mad symbols for behavioral voltage source (bv.sym)
bv.sym.txt
and behavioral current source (bi.sym)
bi.sym.txt
I just made them by a little bit of modification in voltage-3.sym.
for behavioral voltage source:
device=BEHAVIORAL_VOLTAGE_SOURCE
refdes=B?
value=V=expression
for behavioral current source:
device=BEHAVIORAL_CURRENT_SOURCE (for behavioral current source)
refdes=B?
value=I=expression
When I generate the spice netlist for a simple example schematic I got error message reads
"Found unknown component. Refdes = B****"
but anyway the netlist is generated as expected and works for the spice engines I use.
For reference I also attach the code of example schematic and netlist here:
bsource_example.sch.txt
bsource_example.netlist.txt

BTW, we have all those commercial EDA suits but I don't use them. My role is about device modeling and circuit simulation and I prefer something light, fast, and robust and geda (now lepton-eda) is one of my favorite. Actually I have been use this great tool for about 10 years.

And, I really hope you enjoy you time with our controllers.

Best wishes,
Y.J. Liu