No, perhaps its a combination of software and hardware.. What's your configuration?
Overhere its a Ryzen7/x470 with W7/64b
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I use a i5 processor from intel 8 G memory and 1 terabyte hd with a quite old vidocard from nvidia.
I have just try some starts and stops with LTspice, now it does normal, I get a crash when I close the program when it is stil simulating.
regards
I have just try some starts and stops with LTspice, now it does normal, I get a crash when I close the program when it is stil simulating.
regards
Like Jan I’m running LTSpice on different 10/64 systems and never had any crash, although used very intensly with complex models.
Maybe your old NVidia card is causing the problem.
You could try the Intel onboard graphic processor, it’s more than fast enough for the job.
Hans
I'm not surprised.
That's one way to get an "unhandled exception". Remember that an exception is an unscheduled interruption of normal program processing. If you want to stop a simulation, hit the hand (stop) button or ESC key. In other words, don't do that, but only as a last resort.
I'm amazed that some here read over "I get a crash when I close the program when it is still simulating.". Meaning kees52 hits the big "X".
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I assumed it was an uncareful formulation.
Who wants to close instead of stopping while still simulating.
Why then start the simulation in the first place ?
Hans
I do not now if this has on mine board, there is no connection for it.
Maybe some day upgrade the pc, because also this kind of motherboards are no more fabricated I did hear.
I have the GA-Z68P-DS3 (rev. 1.0) | Motherboard - GIGABYTE Global
regards
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Kees you have an operator error, there's nothing wrong with your PC. Read the posts above.
Don't close LTspice while it is still simulating. Stop the simulation first.
Jan
Don't close LTspice while it is still simulating. Stop the simulation first.
Jan
Just to be sure, I started a sim and then closed the program while still simming and that several times in a row.
Nothing spectacular happened and the program closed immediately as instructed.
So we still don't know what Kees was doing, but LTSpice seems to be properly ruggedized.
Hans
Nothing spectacular happened and the program closed immediately as instructed.
So we still don't know what Kees was doing, but LTSpice seems to be properly ruggedized.
Hans
I would like to use the AD844 in a simulation.
I have found a macromodel; and indeed I have created a diagram/component, but the macromodel is called AD844.CIR and the LTSpice does not open that.
The .cir was downloaded from Linear as the Spice model.
How can I do it? What steps should I take?
any help appreciated
albert
PS (I added .TXT because otherwise there would be no attachement)
I have found a macromodel; and indeed I have created a diagram/component, but the macromodel is called AD844.CIR and the LTSpice does not open that.
The .cir was downloaded from Linear as the Spice model.
How can I do it? What steps should I take?
any help appreciated
albert
PS (I added .TXT because otherwise there would be no attachement)
didn't have time for an explanation...just here's something that you can use...
unzip them all into the same directory.
unzip them all into the same directory.
LTspice doesn't care what the file suffix is as long as the complete file name is listed in a .lib or .inc statement. In your case, you just need to include the following statement in your .asc file:
.inc ad844.cir
I have personally adopted a convention of .sub for subcircuits, .mod for model definitions, and .lib for library files so that I can tell at a glance what kind of file it is. But a lot of people just use .txt or .inc and that is perfectly OK.
LTspice has a built-in symbol for the LT1206, which has the same pin-out as the AD844. I've modified that symbol for use with the AD844 (and any other op amp with the same pin-out) and attached it here. Rename it to AD844.asy; this should work for you.
Yes, I just modified the built-in LT1206 symbol to remove its reference to the built-in library file that contains the LT1206 subcircuit. This makes it usable for any other op amp with the same pin-out.
Here is a more generic version of the same symbol file. I've just called it opamp-C to denote that it includes the compensation lead like the LT1206 and AD844. To use it, of course, you will need to replace the "opamp-C" value with whatever device/subcircuit you want to use.
As always, rename the symbol file to eliminate the trailing .txt.
As always, rename the symbol file to eliminate the trailing .txt.
I'm afraid I'm not following you, Jan. Dan and I just offered symbols that match the pin-out of the ad844.cir file, and a suggestion for how to use the ad844.cir subcircuit model in an LTspice simulation. I haven't created a simulation .asc file so I don't have an error to report. Maybe triode_al can try this and see if it works with his simulation file.
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Sorry, was referring to triode_al's post 'LTspice doesn't open it'. I was wondering what the actual error message was.
Jan
Jan
Jan, The message is:
So it knows I downloaded it and where it is.
I have seen that the ad844 file contains a .subckt and some .models sections; in the TIP127.lib file I have seen the same structure. Naming convention?
I wil study the previous respoinses and files carefully, thanks for the help.
What I am up to?
- I had a PCM1704 up and running with AD844// out; then I made a more elaborate feedback (incorporating some freq. dependencies), and 'poufff'
the whole circuit died on me. I want to understand. - I am planning to make an RIAA with the AD844 now, just the high level part.