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Re: Analog Devices to buy LT!

 

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That means no bug fixes to LTspice IV. So long as libraries remain compatible, including encrypted models, it should not be a big deal. Bug fixes have fallen to a very low level for IV in the last year or so, anyway and many of the ones that did happen, as I recall, were OS-related. So, if you use it on an OS that does not change (WinXP), there should be very little need for bug fixes.

Jim

James Wagner
Oregon Research Electronics



On Aug 14, 2016, at 9:00 PM, basier.philippe@... [LTspice] <LTspice@...> wrote:

Hello

From LTspice XVII Help ("Software installation" section ) :

"?LTspice XVII runs on 32- or 64-bit editions of Windows 7, 8, or 10. Windows XP is not supported. Windows XP users can run LTspice IV1, which is still be available in observance of Linear Technology Corporation's zero obsolence tradition.?"

"??? 1] LTspice IV is no longer updated?"

Regards
PhB
Re: Analog Devices to buy LT!

 

Hello

From LTspice XVII Help ("Software installation" section ) :

" LTspice XVII runs on 32- or 64-bit editions of Windows 7, 8, or 10. Windows XP is not supported. Windows XP users can run LTspice IV1, which is still be available in observance of Linear Technology Corporation's zero obsolence tradition. "

" ?? 1] LTspice IV is no longer updated "

Regards
PhB
Re: My DFF FLIPs but it does not want to FLOP

 

> The error message with your original circuit is caused by the missing td or trise. Td or Trise is required for flipflops. Unfortunately this is not mentioned in the help.
>
> Help -> Help Topics -> LTspice -> Circuit Elements -> A Special Functions

There is a passage there that mentions the state changes, but it refers to tripdt, not td, trise, tau or Rout/Cout:

"The gates and Schmitt trigger devices supply no timestep information to the simulation engine by default. That is, they don't look when they are about to change state and make sure there's a timestep close to either side of the state change. The instance parameter tripdt can be set to stipulate a maximum timestep size the simulator takes across state changes."

I think it's safe to say that the help is the least robust feature of LTspice, but maybe it's for the better: it makes you want to dig up for more. Or not. :-)

Vlad
______________________
-- holding, among others:
a universal analog/digital filter, block-level models
for power electronics (and not only), math blocks
with a more stream-lined approach, some digital
ADC, DAC, (synchronous-)counter, JKflop, etc.
Re: Analog Devices to buy LT!

John Woodgate
 

开云体育

It depends what you mean by 'support'. This list won't cease to support IV, and I don't suppose Mike E will, either. ?But it may be 'stabilized', i.e. not have any more improvements.

?

With best wishes DESIGN IT IN! OOO – Own Opinions Only

J M Woodgate and Associates Rayleigh England

?

Sylvae in aeternum manent.

?

From: LTspice@... [mailto:LTspice@...]
Sent: Sunday, August 14, 2016 4:34 PM
To: LTspice@...
Subject: Re: [LTspice] Re: Analog Devices to buy LT!

?

?

Ah thank you. There was no annoucment at least to me updating my LTspice 4.

At least in LTspice 4 sometimes the change log doesn't show updates made
to the program.

Meanwhile I read all the messages subject:XVII from Helmut, Vlad and
analogspiceman. Is version 4 support ongoing?

- Henry

Vlad imbvlad@... [LTspice] schrieb:
>> I am not sure if Mike Engelhardt actually referred to this test version
> (when it was a test version) as being in alpha-test.
>
> Me neither. I was just "reciting" what was (and still is) written in XVII's
> changelog. BTW, does anyone know if the changelog is written somewhere
> else, if at all? It seems to be untouched after every update.
Re: Analog Devices to buy LT!

 

Hello Henry,

>??Is version 4 support ongoing?

At the moment LTspiceIV and LTspiceXVII provides the same number of symbols and jig-files. Thus we can assume that both versions have exactly the same models so far. This may change in the long run, but I am sure this will then be announced.

Best regards,
Helmut?
?
Re: Analog Devices to buy LT!

ehydra
 

Ah thank you. There was no annoucment at least to me updating my LTspice 4.

At least in LTspice 4 sometimes the change log doesn't show updates made to the program.

Meanwhile I read all the messages subject:XVII from Helmut, Vlad and analogspiceman. Is version 4 support ongoing?

- Henry


Vlad imbvlad@... [LTspice] schrieb:

I am not sure if Mike Engelhardt actually referred to this test version
(when it was a test version) as being in alpha-test.
Me neither. I was just "reciting" what was (and still is) written in XVII's
changelog. BTW, does anyone know if the changelog is written somewhere
else, if at all? It seems to be untouched after every update.
Re: My DFF FLIPs but it does not want to FLOP

 

Hello,

The error message with your original circuit is caused by the missing td or trise. Td or Trise is required for flipflops. Unfortunately this is not mentioned in the help.

Help -> Help Topics -> LTspice -> Circuit Elements -> A Special Functions

Best regards,
Helmut
Re: My DFF FLIPs but it does not want to FLOP

Gunoi Nare
 

Thank you Helmut. but Again, What has to do the actual error with the displayed message and how shell I guess the connection . Do you see my point?

G


From: "helmutsennewald@... [LTspice]"
To: LTspice@...
Sent: Sunday, August 14, 2016 8:00 AM
Subject: [LTspice] Re: My DFF FLIPs but it does not want to FLOP

?
Hello,

I don't see your file in the Files-section.
Please upload it to this place below.


Best regards,
Helmut
?
?
Re: My DFF FLIPs but it does not want to FLOP

 

Hello,

Flipflops require a value td or trise. Therefore right mouse click on the flipflop. A dialog window will pop-up. Enter the following in SpiceLine.

td=5n

See my uploaded example "DFF 1a.asc".
?

One can add the options in line Value, Value2, SpiceLine, SpiceLine2.

There are many more parameters for digital devices like
Vhigh, Vlow, Ref, Trise, Tfall, Td ....
Vhigh is the output high level, Ref is the input threshold voltage

Please take a look to this example for the options.

?

?Best regards,
Helmut

?
Re: My DFF FLIPs but it does not want to FLOP

 

Well I get an upload window on Windows/10 in IE, Chrome, Firefox and even Edge!.

Are you signed into Yahoo with an account enrolled to the group?

Dave

From: LTspice@... [mailto:LTspice@...]
Sent: 14 August 2016 12:06
To: LTspice@...
Subject: Re: [LTspice] Re: My DFF FLIPs but it does not want to FLOP





The UPLOAD BUTTON is not working on this link. Clicking on it nothing happens.
G


_____

From: "helmutsennewald@... [LTspice] <mailto:helmutsennewald@...%20[LTspice]> " <LTspice@... <mailto:LTspice@...> >
To: LTspice@... <mailto:LTspice@...>
Sent: Sunday, August 14, 2016 8:00 AM
Subject: [LTspice] Re: My DFF FLIPs but it does not want to FLOP


Hello,

I don't see your file in the Files-section.
Please upload it to this place below.

<>

Best regards,
Helmut
Re: Analog Devices to buy LT!

 

On 8/13/16 10:13 AM, 'John Woodgate' jmw1937@... [LTspice] wrote:

Alpha software versions are private trial versions. Beta versions are for public trial.

Note quite in my experience, there are public and private betas for different products.


Alpha is the first round of testing while the product is still under development. Often there are significant missing features and numerous known bugs in the alpha version, but parts are working well enough to get feedback. Because of the issues, Alpha testing tends to be confined to people close to the developer.

Beta is a second round of testing. At the Beta level, the product is largely feature complete, although for larger products, there may be some sub sections of the product which may still really be at the Alpha level. Generally there are few to no 'show stopper' bugs, and the product is basically usable, but maybe not reliable. Beta testing can be sent to a wide audience, looking for bug reports and usability issues.

At the end of the Beta cycle you get Release Candidates, which are feature complete, and generally believed bug free, and are looking for extensive testing to find any latent bugs.

When a Release Candidate passes Quality, it becomes the Released Version.


--
Richard Damon
Re: My DFF FLIPs but it does not want to FLOP

Gunoi Nare
 

The UPLOAD BUTTON is not working on this link. Clicking on it nothing happens.
G


From: "helmutsennewald@... [LTspice]"
To: LTspice@...
Sent: Sunday, August 14, 2016 8:00 AM
Subject: [LTspice] Re: My DFF FLIPs but it does not want to FLOP

?
Hello,

I don't see your file in the Files-section.
Please upload it to this place below.


Best regards,
Helmut
?
?
Re: My DFF FLIPs but it does not want to FLOP

 

Hello,

I don't see your file in the Files-section.
Please upload it to this place below.


Best regards,
Helmut

?

?
My DFF FLIPs but it does not want to FLOP

[email protected]
 

I hate cryptic error messages...

Perhaps the author(s) of the program could add some possible solutions to solve the encountered errors?I
?I know I'm only dreaming.


I just uploaded a zipped file. The schematic .asc and a .jpeg screen print of the displayed error.

It's name is DFF ERRRRR.zip.


Can any one telme what I do wrong?

G.
Re: Group Milestone

John Woodgate
 

开云体育

I haven’t seen much mention of the book sponsored by Wuerth, the 744-page English version being 'THE LTSPICE IV SIMULATOR' by Gilles Brocard, professionally translated from the French. There is also a German version. It's very comprehensive, but I admit I don't find it a joy to use. However, it must restrict the market for other such books.

?

With best wishes DESIGN IT IN! OOO – Own Opinions Only

J M Woodgate and Associates Rayleigh England

?

Sylvae in aeternum manent.

?

From: LTspice@... [mailto:LTspice@...]
Sent: Sunday, August 14, 2016 10:57 AM
To: LTspice@...
Subject: RE: [LTspice] Group Milestone

?

?

...being a Yahoo Group owner myself (see: ),

?I think John has a point.

?One reason to ask Mike E. and Helmut about their "book plans" is that? the original progenitors? of this site

?need to be sure that IF it is -- or needs to be-- replaced with something ..that something...is a "something

better".

?Obviously this is a "labor of love" for many members..emotional rewards as well as the standard intellectual

?ones.? That Mike and Helmut might be some financial compensation...or that John gets few consulting

contacts/contracts for his efforts (and/or Vlad as well) is icing on a big cake.

I have yet to make a solid nickle on my Yahoo pages...but you never know....marketing people tell me to

"g et pushier" on my emails...but not in my nature to yank cords...especially discussing $10,000 video

equipment.?

Good work all.?? W. Warren

?

)
Re: Group Milestone

 

...being a Yahoo Group owner myself (see: ),

?I think John has a point.

?One reason to ask Mike E. and Helmut about their "book plans" is that? the original progenitors? of this site

?need to be sure that IF it is -- or needs to be-- replaced with something ..that something...is a "something

better".

?Obviously this is a "labor of love" for many members..emotional rewards as well as the standard intellectual

?ones.? That Mike and Helmut might be some financial compensation...or that John gets few consulting

contacts/contracts for his efforts (and/or Vlad as well) is icing on a big cake.

I have yet to make a solid nickle on my Yahoo pages...but you never know....marketing people tell me to

"get pushier" on my emails...but not in my nature to yank cords...especially discussing $10,000 video

equipment.?

Good work all.?? W. Warren


)
Re: Group Milestone

John Woodgate
 

开云体育

The only way to find the number of active users is to hold a survey. We could count posters, but ?there are members who joined many years before they made their first post. So we really have two or even three ?'grades' ?(not orders of merit, of course) of active members:

?

·??????? Users who haven't posted;

·??????? Users who have posted at least once;

·??????? Users who post nearly every day.

?

With best wishes DESIGN IT IN! OOO – Own Opinions Only

J M Woodgate and Associates Rayleigh England

?

Sylvae in aeternum manent.

?

From: LTspice@... [mailto:LTspice@...]
Sent: Sunday, August 14, 2016 7:22 AM
To: LTspice@...
Subject: Re: [LTspice] Group Milestone

?

?

> Currently at 60028 LTspice users and would-be users.

While I can't help wondering about the relative percentage of active users, it's still? something to realize that it was that small group that kept the group alive and kicking.


Vlad
______________________
-- holding, among others:
a universal analog/digital filter, block-level models
for power electronics (and not only), math blocks
with a more stream-lined approach, some digital
ADC, DAC, (synchronous-)counter, JKflop, etc.
Re: Group Milestone

 

> Currently at 60028 LTspice users and would-be users.

While I can't help wondering about the relative percentage of active users, it's still? something to realize that it was that small group that kept the group alive and kicking.

Vlad
______________________
-- holding, among others:
a universal analog/digital filter, block-level models
for power electronics (and not only), math blocks
with a more stream-lined approach, some digital
ADC, DAC, (synchronous-)counter, JKflop, etc.
Re: Analog Devices to buy LT!

 

> I am not sure if Mike Engelhardt actually referred to this test version (when it was a test version) as being in alpha-test.

Me neither. I was just "reciting" what was (and still is) written in XVII's changelog. BTW, does anyone know if the changelog is written somewhere else, if at all? It seems to be untouched after every update.

Vlad
______________________
-- holding, among others:
a universal analog/digital filter, block-level models
for power electronics (and not only), math blocks
with a more stream-lined approach, some digital
ADC, DAC, (synchronous-)counter, JKflop, etc.
Re: Group Milestone

 

Hello,

I am happy that the LTspice group is successful since 14 years. Thanks to all who asked questions and to all who helped to answer these questions.?

LTspice is a fast SPICE program, more compatible to third party models than many other SPICE programs, it's free of charge and supported for free in many groups. I am sure that this great support in groups like the LTspice group is due to it's free license to use.?

Last but not least thanks to Mike, the author of LTspice, for his mission to make the best SPICE program and to make it available for free.

Thanks to Yahoo which has kept all the groups' features over two? decades.?The main feature of Yahoo groups for the LTspice-group is the files section.?Let's hope Verizon will not reduce the features next year.?

Best regards,
Helmut
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