Activity for Emrys
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Emrys posted a comment on discussion ngspice-users
Sure, no problem. You can see the full file in their pre-compiled zip file here. I found that the tool didn't work on the model I wanted to convert, so I looked further into the examples files they provided to see what exactly it was outputting and it didn't seem all that complicated. I had never seen a 'B' source in SPICE, so I had to go look that one up, but once I saw it's just a generic controlled source, it all made sense. Here's a truncated example subcircuit for the 'pull-up' component of...
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I found it particularly interesting that they used nested ternary operators for the look-up table. I would have thought a regular table controlled source would have been better, but then I tried to implement it and found out it just doesn't work (at least not the in simulator I used... I think Tina? I've slept since then...).
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Hey Giles, I had seen on the roadmap that supporting IBIS was an open item. In my free time, I've been doing a bit of looking at how IBIS models can be converted to SPICE (looking at how IBIS2SPICE works). It would be great to be able to replace any I/O in a circuit with an IBIS model input impedance or output driver. Combining the XSPICE digital components with IBIS I/Os could make for some very accurate and fast-responding models. Might even be able to model signal integrity for simple transmisison...
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Thank you both for the quick responses. I've been learning a great deal about ngspice over the last few months, and I'm glad to see such an active community. I cloned the repo, but haven't had a chance to really look over it yet -- hopefully I will be able to contribute some in the future. I'd really like to see that IBIS capability get integrated :).
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Hello, I'm running into an issue with a mixed-signal circuit in which I have an analog clock source (PULSE) feeding into a digital system, and the results are very inconsistent depending on the time step selected. I built this simple example file: * This file is for testing transient plotting of pulse sources VIN A 0 PULSE ( 0 5 0 1p 1p 20u 40u 0) ABRIDGE [A] [D] adc_ideal .model adc_ideal adc_bridge(in_low = 0.5 in_high = 0.5 rise_delay=1e-12 fall_delay=1e-12) .control tran 100u 200u 0 save A D...
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Doxygen updates for handler.cpp and initlists.cpp
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Minor comment fix to outPut.cpp
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Doxygen comment updates for almost all files in...
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More Doxygen updates.
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Comment fixes, not done yet.
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writeShow.cpp and xml.cpp updated for better fi...
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Updated comments for showParser.cpp
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parseFilter.cpp fix
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Updated comments for Doxygen in files tasks.cpp...
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Comment additions to gap.cpp and mainOutput.cpp...
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Fixed a minor mistake in matchPattern.cpp
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Updated comments for Doxygen for matchPattern.c...
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Comments updated to please the erythros in epis...
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Commented episode.hpp
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