Re: Capture a Spice schematic?
Thanks, Jon. If it is at 7.99,
can 8.0 be far away? Should I wait?
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-15 23:58, Jon Evans wrote:
toggle quoted message
Show quoted text
LTSpice schematic import support has been added in the
nightly builds (7.99) and will be released in KiCad 8.0.
Unfortunately, there is no way I know of to import an
LTSpice schematic in 7.0 or older versions of KiCad
On Mon, May 15, 2023 at
5:48?PM John Woodgate < jmw@...>
wrote:
Thanks, Tony, but I
think you misunderstood. I want to convert an LTspice
schematic (in .ASC or any other format) to a KiCad
schematic. I could print it and re-create it in KiCad,
but I was hoping to find a conversion.
======================================================================================
Best wishes John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget. I see, and I remember. I do, and I
understand. Xunzi (340 - 245 BC)
On 2023-05-15 21:56, Tony Casey wrote:
On 15/05/2023 21:51, John Woodgate
wrote:
Symbols
and PCBs can be captured from bitmaps, so it looks
as though schematics, which are much simpler, could
be captured, but there is no direct way to do that
in KiCad 6. I wonder if there is an indirect way, or
some sort of work-around.
I think you're out of luck, John. There are scripts to
create symbols, but I suspect they are not useful for the
kind of (analogue) stuff you want to use.
Perhaps if you post a list of what you're looking looking
for, you find they exist already. Whether they are to your
taste, is another matter. But honestly, if you've created
symbols in LTspice, it's? hardly more onerous to do it in
KiCAD, and they'll be prettier.
--
Regards,
Tony
|
Re: Capture a Spice schematic?
LTSpice schematic import support has been added in the nightly builds (7.99) and will be released in KiCad 8.0.
Unfortunately, there is no way I know of to import an LTSpice schematic in 7.0 or older versions of KiCad
On Mon, May 15, 2023 at 5:48?PM John Woodgate < jmw@...> wrote:
Thanks, Tony, but I think you
misunderstood. I want to convert an LTspice schematic (in .ASC
or any other format) to a KiCad schematic. I could print it
and re-create it in KiCad, but I was hoping to find a
conversion.
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-15 21:56, Tony Casey wrote:
On 15/05/2023 21:51, John Woodgate wrote:
Symbols and PCBs can be captured
from bitmaps, so it looks as though schematics, which are
much simpler, could be captured, but there is no direct way
to do that in KiCad 6. I wonder if there is an indirect way,
or some sort of work-around.
I think you're out of luck, John. There are scripts to create
symbols, but I suspect they are not useful for the kind of
(analogue) stuff you want to use.
Perhaps if you post a list of what you're looking looking for, you
find they exist already. Whether they are to your taste, is
another matter. But honestly, if you've created symbols in
LTspice, it's? hardly more onerous to do it in KiCAD, and they'll
be prettier.
--
Regards,
Tony
|
Re: Capture a Spice schematic?
Thanks, Tony, but I think you
misunderstood. I want to convert an LTspice schematic (in .ASC
or any other format) to a KiCad schematic. I could print it
and re-create it in KiCad, but I was hoping to find a
conversion.
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-15 21:56, Tony Casey wrote:
toggle quoted message
Show quoted text
On 15/05/2023 21:51, John Woodgate wrote:
Symbols and PCBs can be captured
from bitmaps, so it looks as though schematics, which are
much simpler, could be captured, but there is no direct way
to do that in KiCad 6. I wonder if there is an indirect way,
or some sort of work-around.
I think you're out of luck, John. There are scripts to create
symbols, but I suspect they are not useful for the kind of
(analogue) stuff you want to use.
Perhaps if you post a list of what you're looking looking for, you
find they exist already. Whether they are to your taste, is
another matter. But honestly, if you've created symbols in
LTspice, it's? hardly more onerous to do it in KiCAD, and they'll
be prettier.
--
Regards,
Tony
|
Re: Capture a Spice schematic?
On 15/05/2023 21:51, John Woodgate wrote:
Symbols and PCBs can be captured
from bitmaps, so it looks as though schematics, which are much
simpler, could be captured, but there is no direct way to do
that in KiCad 6. I wonder if there is an indirect way, or some
sort of work-around.
I think you're out of luck, John. There are scripts to create
symbols, but I suspect they are not useful for the kind of
(analogue) stuff you want to use.
Perhaps if you post a list of what you're looking looking for, you
find they exist already. Whether they are to your taste, is another
matter. But honestly, if you've created symbols in LTspice, it's?
hardly more onerous to do it in KiCAD, and they'll be prettier.
--
Regards,
Tony
|
Re: Capture a Spice schematic?
Symbols and PCBs can be
captured from bitmaps, so it looks as though schematics, which
are much simpler, could be captured, but there is no direct
way to do that in KiCad 6. I wonder if there is an indirect
way, or some sort of work-around.
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-15 20:36, Al Dutcher wrote:
toggle quoted message
Show quoted text
Not that
i?know of, but
i
havent?really researched it
On Mon, May 15, 2023 at
8:40?AM John Woodgate < jmw@...>
wrote:
Is
it possible to capture a Spice schematic (perhaps in the form
of an .ASC, .JPG or .BMP) as a Kicad schematic?
|
Re: Capture a Spice schematic?
Not that i?know of, but i havent?really researched it
On Mon, May 15, 2023 at 8:40?AM John Woodgate < jmw@...> wrote: Is it possible to capture a Spice schematic (perhaps in the form of an .ASC, .JPG or .BMP) as a Kicad schematic?
|
Capture a Spice schematic?
Is it possible to capture a Spice schematic (perhaps in the form of an .ASC, .JPG or .BMP) as a Kicad schematic?
|
Re: Updating symbols merges power/ground nets
OOPS! Sorry. Who reads subject
lines anyway??
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-01 18:42, Alan Pearce via
groups.io wrote:
toggle quoted message
Show quoted text
He is on the Kicad list John, not LTspice.
Read the subject line of the email.
On Mon, 1 May 2023 at 14:19,
John Woodgate < jmw@...>
wrote:
Then just upload the
schematic file and any symbol files not native to
LTspice.
======================================================================================
Best wishes John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget. I see, and I remember. I do, and I
understand. Xunzi (340 - 245 BC)
On 2023-05-01 14:17, brian wrote:
I am not running a simulation. I
don't know how you got that idea. This is in the schematic
editor.?
|
Re: Updating symbols merges power/ground nets
He is on the Kicad list John, not LTspice. Read the subject line of the email.
On Mon, 1 May 2023 at 14:19, John Woodgate < jmw@...> wrote:
Then just upload the schematic
file and any symbol files not native to LTspice.
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-01 14:17, brian wrote:
I am not running a simulation. I don't know how you got that idea.
This is in the schematic editor.?
|
Re: Updating symbols merges power/ground nets
Then just upload the schematic
file and any symbol files not native to LTspice.
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-01 14:17, brian wrote:
toggle quoted message
Show quoted text
I am not running a simulation. I don't know how you got that idea.
This is in the schematic editor.?
|
Re: Updating symbols merges power/ground nets
I am not running a simulation. I don't know how you got that idea. This is in the schematic editor.?
|
Re: Updating symbols merges power/ground nets
No-one can tell by
extra-sensory perception.
Upload your .ASC files AND all the other files required to run
the simulation, but not? .RAW nor .LOG files, as a ZIP archive
to Files => Temp and then tell us you did that.
======================================================================================
Best wishes
John Woodgate OOO-Own Opinions Only
Rayleigh, Essex UK
I hear, and I forget.
I see, and I remember.
I do, and I understand.
Xunzi (340 - 245 BC)
On 2023-05-01 14:11, brian wrote:
toggle quoted message
Show quoted text
I have a design which is essentially two separate circuits (a
motherboard and daughter card)?with two 3.3V rails (+3V3 and
+3.3VP) and two separate grounds (GND and GND1). They do, however,
use two instances of an ATMEGA808. The ATMEGA has Vdd and Vss
power pints. When I update the symbol of the ATMEGA808 The
schematic editor will alternately merge +3V3 and +3.3VP or GND and
GND1.?
I do not know if this is a bug or if I am doing something wrong.
Thanks
|
Updating symbols merges power/ground nets
I have a design which is essentially two separate circuits (a motherboard and daughter card)?with two 3.3V rails (+3V3 and +3.3VP) and two separate grounds (GND and GND1). They do, however, use two instances of an ATMEGA808. The ATMEGA has Vdd and Vss power pints. When I update the symbol of the ATMEGA808 The schematic editor will alternately merge +3V3 and +3.3VP or GND and GND1.?
I do not know if this is a bug or if I am doing something wrong.
Thanks
|
Re: removing lock from footprint
Do you have "locked items" turned on in the selection filter on the bottom right?
On Thu, Apr 27, 2023 at 12:09?PM Axel Rau < Axel.Rau@...> wrote:
Using 6.0.11 here on linux works fine
Not on macos 10.15. Seems to be a bug. But 7.x does npt run on my macos, so no bug report. )-;
Text editor is yout friend. (-;
Axel
---
PGP-Key:?CDE74120 ?? mobile: +49 160 7568212 computing @ chaos claudius
|
Re: removing lock from footprint
Using 6.0.11 here on linux works fine
Not on macos 10.15. Seems to be a bug. But 7.x does npt run on my macos, so no bug report. )-;
Text editor is yout friend. (-;
Axel
---
PGP-Key:?CDE74120 ?? mobile: +49 160 7568212 computing @ chaos claudius
|
Re: removing lock from footprint
Using 6.0.11 here on linux works fine click on the footprint and it highlights. Select propeties and then choose lock/unlock as needed. Andy On Thu, 27 Apr 2023 12:06:20 +0200 "Axel Rau" <Axel.Rau@...> wrote: Selecting of a locked part does not work in 6.0.10.
So how can I unlock it ?
Thanks, Axel
---
PGP-Key: CDE74120 ? mobile: +49 160 7568212
computing @ chaos claudius
|
removing lock from footprint
Selecting of a locked part does not work in 6.0.10.
So how can I unlock it ?
Thanks, Axel
---
PGP-Key: CDE74120 ? mobile: +49 160 7568212
computing @ chaos claudius
|
Re: Copying geometry from one board to another
On Wed, 26 Apr 2023 13:40:24 +0200 "Axel Rau" <Axel.Rau@...> wrote: How exactly I get the zero point of a footprint?
Both boards have different dimensions, but I try to define a common point of reference. open the footprint in the footprint editor The crosshairs are the zero or placement point. i.e where you click on the that will be where the module is placed around. It's usually in the centre of smd components as that;'s where the pick and place machines like to grab, but for things like pin connectors it's often centred on pin 1 The board dimensions don't matter it's where in the grid things go that is important. If you find keeping track of the positions a bit awkward - and it can be - Shove a pad down somewhere known, even if way off the board say at x,y, 500,500 on both layouts and LOCK it. Then set down your connectors on each board FIRST relative to that pad use the move relative option in the move command. Then LOCK the connectors in place You can then lay out the boards around the connectors. Once you are happy, just remove the lock on the pad and delete it. It's a good idea to add a not on the circuit diagram or layout as to where the pad was, just in case you need to make mods later. Dropping temp pads on the layout is a trick I use often especially for drawing boundaries and so on. i.e. if I want a board 100x45mm then I drop 4 pads positioned relative to each other, then it's just a matter of "joining the dots" with the line tool it's often quicker than fiddling with the x y and lengths in the line properties. Andy
|
Re: Copying geometry from one board to another
Hi Andy and Jason,
I will try your suggestions,? On one board, the connectors are on the back side.
How exactly I get the zero point of a footprint?
Both boards have different dimensions, but I try to define a common point of reference.
I never worked with step models. but likely ?will in the future.
Thanks for responding, Axel
Look at the properties of the connectors on board that you have laid out. That will tell you the x and y values. Use those values to position the connectors on the other board, (just enter them into the properties. (It may be easier to shift the second board well away from the grid origin, then position the two connector. Then you can move the board back again. ) Make sure that the zero point of each connector footprint is in the same place. Other methods, use the move command, that has a couple of relative move options, so you can place a footprint at a specified distance, which may be more convenient. Another method, make sure that you use the same grid for each board and that that it aligns up. Then you can simply place the footprints on the grid. Andy On Sun, 23 Apr 2023 19:22:24 +0200 "Axel Rau" < Axel.Rau@...> wrote: Hi all,
I have 2 boards with 2 pin headers and pin aockets, which should plug together.
How can I transfer the position of the connectors from one layout to the other one?
Last ressort would be to manually place them with the measure tool.
Any help welcome,
Axel
---
PGP-Key: CDE74120 ?? mobile: +49 160 7568212
computing @ chaos claudius
---
PGP-Key:?CDE74120 ?? mobile: +49 160 7568212 computing @ chaos claudius
|
Re: Copying geometry from one board to another
Another suggestion, after placement, would be to export step models of both boards, and do a fit check in FreeCAD or another 3D modelling tool of your choice.? Select the two mating surfaces and add a constraint that they be coincident.? I'm not familiar enough with FreeCAD to know if it supports an overlapping?subassembly report, but you could just eyeball it and get an approximate idea of any problem areas.
?- Jason
On Sun, Apr 23, 2023 at 9:20?PM Andy < andygio@...> wrote: Look at the properties of the connectors on board that you have laid out.
That will tell you the x and y values.
Use those values to position the connectors on the other board, (just
enter them into the properties.
(It may be easier to shift the second board well away from the grid
origin, then position the two connector. Then you can move the board back
again. )
Make sure that the zero point of each connector footprint is in the
same place.
Other methods, use the move command, that has a couple of relative move
options, so you can place a footprint at a specified distance, which may
be more convenient.
Another method, make sure that you use the same grid for each board and
that that it aligns up. Then you can simply place the footprints on the
grid.
Andy
On Sun, 23 Apr 2023 19:22:24 +0200
"Axel Rau" <Axel.Rau@...> wrote:
> Hi all,
>
> I have 2 boards with 2 pin headers and pin aockets, which should plug together.
> How can I transfer the position of the connectors from one layout to the other one?
>
> Last ressort would be to manually place them with the measure tool.
>
> Any help welcome,
> Axel
> ---
> PGP-Key: CDE74120? ? mobile: +49 160 7568212
> computing @ chaos claudius
>
>
>
>
>
>
|
John Woodgate
Tony Casey