Question for LTSpice Users

Has anyone used anything other than the provided schematic entry for LTSpice?

What I have in mind is using my venerable MicroSim Schematics as a frontend for LTSpice.

I have dozens of years of collected symbols... too late to teach an old dog new tricks.

Thompson is about to bail from PSpice... a continual money-hole with no improvements in years... they haven't even fixed the bugs I reported 5 years ago :-(

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

Reply to
Jim Thompson
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LTspice schematics are simple ASCII text files. If you can somehow export your old stuff in some understood, preferably text, format, it wouldn't be monstrous to write a Basic or Pearl program to do the conversion.

John

Reply to
John Larkin

MicroSim Schematics is text-based as well. However, MicroSim Schematics is one of the best tools ever written... I want to continue using it.

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

quoted text -- Show quoted text -

Which version of PSpice are you using?

Dave

Reply to
EE123

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

You can copy and paste a spice netlist file as a spice statement in the LTspice editor window and things seem to run........ So use MicroSim to generate a .net file and carry on.

It's not elegant but....

.include filename.net doesn't seem to work but there may be something similar that does.

Watch out for the license agreement!

You may as well e-mail Mike for a better answer, unless you are not mates anymore.

DNA

Reply to
Genome

v15.7 (by the new Cadence numbering system). But Schematics itself hasn't changed in years... except for the mucking around by Cadence "developers" (you know, the ones recently mentioned in the news as admitting to having little dicks :-)

For instance, the recent release lost its ability to handle paths to accessory tools if the path name had spaces... as in Program Files :-(

Took some finagling to cure...

TEXTEDITCMD=C:\\"Program Files"\\"IDM Computer Solutions"\\UltraEdit-32\\uedit32.exe

Isn't that crazy ?:-)

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

Which license agreement would that be?

I would, but I've misplaced his address :-9

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

Oooops! I DO HAVE a request for a switcher design here on my desk ;-)

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Well..... help|about gives you an e-mail address for comments and bug reports. Each time I've used it Mike was the person who replied.

License...... help|help topics|License Agreement/Disclaimer.....

"This program is specifically not licensed for use by semiconductor manufacturers in the promotion, demonstration or sale of their products. Specific permission must be obtained from Linear Technology for the use of SwitcherCAD III for these applications."

OK it does not sound like it specifically prevents you from using the software to do what you do but it might be interpreted that way. I'm sure Linear Technology would take a dim view of things if you started using the software to design stuff that encroaches on their market.....

Play the 'White Man' and ask before you get stomped on...

DNA

Reply to
Genome

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Clear indication of programmers who either (1) are pretty mediocre or (2) don't actually use their own tools.

In the case of ORCAD these days, I'd imagine both apply.

Reply to
Joel Kolstad

LTspice will read the Schematics net list output. I was doing that back a few years ago on "that" project. PSpice does have a nicer graphing utility, so it would be spiffy if you could convert the LTspice output file to something PSpice's graphing utility could swallow. Although, I really like how LTspice shows graphical results as it is running the simulation.

--
Mark
Reply to
qrk

My intense aggravation is driven by the fact that they mucked with a working tool that they "no longer support"... I guess "no longer support" means "kill it" :-(

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

And an almost criminal intent to do damage...

TEXTEDITCMD="C:\\Program Files\\IDM Computer Solutions\\UltraEdit-32\\uedit32.exe"

worked when entered from the Schematics set-up tab, also double quotes "" ... ""

but were removed during the re-write of the INI file.

That looks to be an "on purpose" damage attempt to me.

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

No, its actually quite common to place "" around paths. The routine parsing the path needs some way to tell where the path ends. Especially when multiple paths can be specified.

--
Reply to nico@nctdevpuntnl (punt=.)
Bedrijven en winkels vindt U op www.adresboekje.nl
Reply to
Nico Coesel

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Ooooooh me-gosh. Just call me jealous.

DNA

Reply to
Genome

1W / ±40V

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

Reply to
Jim Thompson

Netlisting is more than half the battle. Why not just feed the netlist to any number of other spice simulators out there. Ngspice for instance.

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Reply to
miso

Speaking (opposite) of which, I like this story about the Altium CEO using his own tools:

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Dave :)

Reply to
David L. Jones

Nice article, although I question a couple of its claims:

"For any reasonably complex software system with more than about two serious users, the number of bug reports and change requests will far outpace the fix rate of the development engineers" -- Hopefully they wouldn't state this if they were only talking about *bug reports* and not *bug reports AND change requests*.

"One of the classic problems faced by users of electronic design automation software is that the developers of the software are, by necessity, software engineers." -- What makes them think this? Personally I'd prefer software programmed by a really good hardware engineer who happens to be an average programmer long before software programmed by a "software engineer" who never did any real hardware design. In the former case, at worst you tend to end up with weird GUIs and odd ways of getting things done, but in the later the software doesn't work at all for its intended purpose.

Reply to
Joel Kolstad

Maybe programs like EDA tools are just so huge and complex these days that it might actually take "software engineers" to do it? Hardware engineer "programmers" usually want to do it all themselves and don't play well with other programmers :->, that may not be conducive to huge software development efforts!

Very true in many cases.

Dave :)

Reply to
David L. Jones

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