Qspice Beta Testers...

[Lamont Cranston]

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

 

[boB]

On Fri, 19 May 2023 09:28:28 -0700 (PDT), Lamont Cranston
<amdx62@gmail.com> wrote:

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

I signed up !

Qorvo was by the other day showing us their United SiC FETs and was
surprised I knew about Qspice and the affiliation. I am sure it is
going to be a very cool simulator. Can\'t wait to try it.

boB

 

[Joe Gwinn]

On Fri, 19 May 2023 09:28:28 -0700 (PDT), Lamont Cranston
<amdx62@gmail.com> wrote:

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at <https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

This could be very interesting: The Grandmaster started with a clean
sheet, unhindered by the vast existing spaghetti codebase, or IP
conflicts and tangles.

I bet that QSPICE\'s code memory footprint is far smaller than LTspice.

I signed up as a beta tester as well.

Joe Gwinn - who started with Spice 3f.5, and read Nagle\'s PhD Thesis
at least two decades ago.

 

[John S]

On 5/19/2023 11:28 AM, Lamont Cranston wrote:

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

 

[Anthony William Sloman]

On Sunday, May 21, 2023 at 12:25:33 AM UTC+10, John S wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely re-architected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

I\'ve never been a beta tester. LTSpice IV is what I live by. What are the obligations of the tester?

Tell them about anything that doesn\'t work, in enough detail that they can reproduce the fault.

Much the same as being a Microsoft user, in practice. The assumption is that there will be more faults than in software you\'ve paid for.

--
Bill Sloman, Sydney

 

[Ricky]

On Friday, May 19, 2023 at 12:28:33 PM UTC-4, Lamont Cranston wrote:

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

I wonder if it will have a modern UI, rather than the DOS inspired, logically inverted, bit of renaissance coding that LTspice is?

I\'m thinking not, since it\'s being written by the same guy, but I\'m willing to give it a chance.

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

 

[John Larkin]

On Fri, 19 May 2023 15:56:01 -0400, Joe Gwinn <joegwinn@comcast.net>
wrote:

On Fri, 19 May 2023 09:28:28 -0700 (PDT), Lamont Cranston
amdx62@gmail.com> wrote:

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at <https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

This could be very interesting: The Grandmaster started with a clean
sheet, unhindered by the vast existing spaghetti codebase, or IP
conflicts and tangles.

I bet that QSPICE\'s code memory footprint is far smaller than LTspice.

I signed up as a beta tester as well.

Joe Gwinn - who started with Spice 3f.5, and read Nagle\'s PhD Thesis
at least two decades ago.

Mike wrote LT spice from scratch. It\'s a true compiler and doesn\'t use
the Berkeley code base. Code footprint doesn\'t matter any more, with
common apps taking hundreds of megabytes. The runtime RAM use of LT
Spice is initially 4.5 megabytes, and under 12M running and plotting
the 6BK4 sim. Firefox is over 1G.

Next, I want Spice models for their RF parts.

 

[John Larkin]

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org>
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.

 

[Joe Gwinn]

On Sat, 20 May 2023 13:03:43 -0700, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

On Fri, 19 May 2023 15:56:01 -0400, Joe Gwinn <joegwinn@comcast.net
wrote:

On Fri, 19 May 2023 09:28:28 -0700 (PDT), Lamont Cranston
amdx62@gmail.com> wrote:

I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at <https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE

This could be very interesting: The Grandmaster started with a clean
sheet, unhindered by the vast existing spaghetti codebase, or IP
conflicts and tangles.

I bet that QSPICE\'s code memory footprint is far smaller than LTspice.

I signed up as a beta tester as well.

Joe Gwinn - who started with Spice 3f.5, and read Nagle\'s PhD Thesis
at least two decades ago.

Mike wrote LT spice from scratch. It\'s a true compiler and doesn\'t use
the Berkeley code base.

Now that you mention it, I think I knew that once.

Code footprint doesn\'t matter any more, with
common apps taking hundreds of megabytes. The runtime RAM use of LT
Spice is initially 4.5 megabytes, and under 12M running and plotting
the 6BK4 sim. Firefox is over 1G.

Yes, we always had this problem with libraries, but many of those
libraries were written for the purpose, and a simpler core is likely
to pull less in. We shall see.

And old code gets pretty crufty, and it\'s necessary to burn it to the
ground and start over from time to time. Cue \"Tobacco Road\":

..<https://www.youtube.com/watch?v=vKvynim8JHo>


>Next, I want Spice models for their RF parts.

There may be hope, because from Mike\'s talk it sounds like Qorvo
bought into Mike\'s business model as well.

Joe Gwinn

 

[boB]

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.

Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

 

[John Larkin]

On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

But I hope Analog Devices doesn\'t ruin LT Spice.

I guess I should save a backup copy of the current one, in case they
do wreck it.

 

[boB]

On Sun, 21 May 2023 07:18:38 -0700, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

Just big enough to see at least how complicated the schematic is.

But I hope Analog Devices doesn\'t ruin LT Spice.

Me too.

I guess I should save a backup copy of the current one, in case they
do wreck it.

Instead of just letting LTspice update from within the program, I
download the .EXE or now, the .MSI files that contain the complete
installation and put the date and/or the version number in the file
name. So if a version screws something up, I can always go back
to an older version. Disk space is cheap for this purpose.

boB

 

[Phil Hobbs]

John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years,
mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I
started anew with the open sources. Found bugs in Kundurt\'s Sparse
Matrix Package that I think can only be found if starting anew with
code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and
manufacturing concerns, it turned out to be more than just a more
robust and faster analog SPICE program. QSPICE allows one to include
massive amounts of digital. I\'m humbled that the simulator turned
out better than I could have expected. QSPICE responds to the fact
that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming
soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

But I hope Analog Devices doesn\'t ruin LT Spice.

I guess I should save a backup copy of the current one, in case they
do wreck it.

Yup. They’ve already broken the part selection dialogue—it goes out to
lunch for several seconds when you start typing.

--
Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC /
Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics

 

[John Larkin]

On Sun, 21 May 2023 15:09:55 -0700, boB <boB@K7IQ.com> wrote:

On Sun, 21 May 2023 07:18:38 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

Just big enough to see at least how complicated the schematic is.


But I hope Analog Devices doesn\'t ruin LT Spice.

Me too.


I guess I should save a backup copy of the current one, in case they
do wreck it.

Instead of just letting LTspice update from within the program, I
download the .EXE or now, the .MSI files that contain the complete
installation and put the date and/or the version number in the file
name. So if a version screws something up, I can always go back
to an older version. Disk space is cheap for this purpose.

boB

Does the .msi file need online access to install?

 

[John Larkin]

On Sun, 21 May 2023 22:17:59 -0000 (UTC), Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote:
On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years,
mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I
started anew with the open sources. Found bugs in Kundurt\'s Sparse
Matrix Package that I think can only be found if starting anew with
code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and
manufacturing concerns, it turned out to be more than just a more
robust and faster analog SPICE program. QSPICE allows one to include
massive amounts of digital. I\'m humbled that the simulator turned
out better than I could have expected. QSPICE responds to the fact
that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming
soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

But I hope Analog Devices doesn\'t ruin LT Spice.

I guess I should save a backup copy of the current one, in case they
do wreck it.



Yup. They’ve already broken the part selection dialogue—it goes out to
lunch for several seconds when you start typing.

Looks like the Win7 version XVII is unsupported now.

 

[boB]

On Sun, 21 May 2023 16:08:19 -0700, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sun, 21 May 2023 15:09:55 -0700, boB <boB@K7IQ.com> wrote:

On Sun, 21 May 2023 07:18:38 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years, mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I started anew with the open sources. Found bugs in Kundurt\'s Sparse Matrix Package that I think can only be found if starting anew with code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and manufacturing concerns, it turned out to be more than just a more robust and faster analog SPICE program. QSPICE allows one to include massive amounts of digital. I\'m humbled that the simulator turned out better than I could have expected. QSPICE responds to the fact that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

Just big enough to see at least how complicated the schematic is.


But I hope Analog Devices doesn\'t ruin LT Spice.

Me too.


I guess I should save a backup copy of the current one, in case they
do wreck it.

Instead of just letting LTspice update from within the program, I
download the .EXE or now, the .MSI files that contain the complete
installation and put the date and/or the version number in the file
name. So if a version screws something up, I can always go back
to an older version. Disk space is cheap for this purpose.

boB

Does the .msi file need online access to install?

No. It\'s the whole LTspice program.

Being able to install LTspice completely offline is important to me,
too.

boB

 

[boB]

On Sun, 21 May 2023 16:16:11 -0700, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sun, 21 May 2023 22:17:59 -0000 (UTC), Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote:
On Sat, 20 May 2023 21:01:46 -0700, boB <boB@K7IQ.com> wrote:

On Sat, 20 May 2023 13:04:53 -0700, John Larkin
jlarkin@highlandSNIPMEtechnology.com> wrote:

On Sat, 20 May 2023 09:23:23 -0500, John S <Sophi.2@invalid.org
wrote:

On 5/19/2023 11:28 AM, Lamont Cranston wrote:
I know nothing about it, but there is discussion on this IOgroup,
https://groups.io/g/LTspice/topic/new_simulator_written_by_mike/98208355?p=Created%2C%2C%2C20%2C2%2C180%2C0&jump=1

https://p.qorvo.com/qspice

Dear Group!

The simulator I\'ve been working on for the last three years,
mentioned here under its code name of S·P·Q·R, will beta imminently as QSPICE.

QSPICE(S·P·Q·R) started out as a mission to get SPICE right. I
started anew with the open sources. Found bugs in Kundurt\'s Sparse
Matrix Package that I think can only be found if starting anew with
code one already knows. The timestep control is also entirely rearchitected.

But with the help of affiliations with a number of IC design and
manufacturing concerns, it turned out to be more than just a more
robust and faster analog SPICE program. QSPICE allows one to include
massive amounts of digital. I\'m humbled that the simulator turned
out better than I could have expected. QSPICE responds to the fact
that simulation requirements change.

If you wish to participate in the Qorvo QSPICE beta, which is coming
soon, you can sign up at https://p.qorvo.com/qspice

Mike Engelhardt
Author of QSPICE


I\'ve never been a beta tester. LTSpice IV is what I live by. What are
the obligations of the tester?

Upgrade to XVII! It\'s worth the small hassle.


Evidently the new LTspice 17.1 doesn\'t support schematic preview while
browsing for files. :{ I\'ll get over it -

boB

The little thumbnails? They are too tiny to be useful.

But I hope Analog Devices doesn\'t ruin LT Spice.

I guess I should save a backup copy of the current one, in case they
do wreck it.



Yup. They’ve already broken the part selection dialogue—it goes out to
lunch for several seconds when you start typing.

Looks like the Win7 version XVII is unsupported now.

At least those versions are completely usable and installable.

boB