Windows 7, 64-bit
Dell USB optical mouse with scroll wheel
-On starting PCB, the z/Z keys work (no click required).
-scroll wheel zooms.
-no trackpad available.
-zoom menu options work fine.
mw.
__
From:
Seems like you could just use this example, add a second axis, and replace the
potentiometer with a 2-axis joystick.
http://www.arduino.cc/en/Tutorial/StepperUnipolar
http://www.parallax.com/Portals/0/Downloads/docs/prod/sens/27800-2-AxisJoyStick-v1.0.pdf
- Original Message
From:
I'd prefer a spice-prototype attribute, which would allow us to avoid many of
the difficulties without a confusing proliferation of attributes. For the
symbol nmos-3.sym, a suitable prototype might be:
M? #D #G #S #S $model-name L= W= AS= AD= PS= PD= M=
Yes, if we're willing to reinvent
Excellent!
I'd be interested to know how you're tackling the user interface (and
editing behaviour) with multiple objects selected.
There are various cases:
1. Attribute exists in all objects, same value
2. Attribute exists in all objects, different values
3. Attribute does NOT exist in all
What are typical use cases for having multiple same-named attributes in a
symbol?
Same-named attributes in my symbols:
* slotdef -- this is pretty generic
* comment -- sometimes, more than one note needs to be delivered
* documentation -- sometimes, more than one datasheet is available
• gschem room for improvement: Currently, nets attached to dragged symbols
will go any angle. This is rarely desired in schematics. Instead pure
orthogonal style is almost universally used.
Suggestion: Add a mode to automatically make nets Manhattan style.
Make this mode the default.
Hmmm, I have never done something like this, but I will try. Does anyone
of you have a hint for a documentation how to do this and a link to a
webpage, where I can host this repository?
Thanks,
Felix
I'd be interested to know how you do this; I'm preparing a patch to gschem's
If it was me, I think I'd make a script for some 3D modelling package like
FreeCAD to generate a 3D model using PCB's XY place file output.
The process would be:
1. make FreeCAD 3D models for each of the components
2. generate an XY place file, board outline file and drill file in PCB
3.
You're specifying a 10 ms step size (first parameter in the tran command), and
it looks like that's what you're getting. The period of a 60 Hz sine wave is
16.6 ms, so you're getting fewer than 2 samples per cycle. Try changing the
step size to 1 ms and things should start to look better.
Subject: Re: gEDA-user: very backward time step?
On Tuesday 21 September 2010, Matthew Wilkins wrote:
You're specifying a 10 ms step size (first parameter in the
tran command), and it looks like that's what you're
getting. The period of a 60 Hz sine wave is 16.6 ms, so
you're getting fewer than 2
I guess it depends how sophisticated you want your model to be.
1. A simple motor/generator model is a resistor, inductor and voltage
source in series. The voltage source is proportional to speed. Torque
is proportional to current through the winding. You can measure the
values
For less-common parts, I would think the schematic symbols would be
generated _from_ data in the parts database. Let's say you're
interested in using a particular 80-pin IC with a pinout that doesn't
resemble any other part that is in the database or the symbol
library. Here's an
: gattrib)
On May 6, 2010, at 1:34 PM, Matthew Wilkins wrote:
For less-common parts,
There are so many different parts on the market, and so many different
kinds of applications, design flows, prejudices, etc. that *every* part
is uncommon. That's what sinks all forms of general
You may also be able to get manufacturers to publish their part data in
their own database repository. If the system is made general purpose,
it could be adopted by other (commercial and open-source) packages.
At that point there would be a lot of pressure for manufacturers to
play
You should take a look at this thread; it sounds as though the problem
of requiring CoreText should be fixed in Pango 1.27 (which has now been
released). Have you tried that version? if it doesn't work, then maybe
you could try applying the patch to version 1.26.
I think most people end up building a small library of gschem symbols
that they use. If they work with Spice a lot, the symbols will include
the references to the necessary spice models. Once they have that work
of creating models complete, then it's just a matter of arranging
.
--- On Sat, 4/17/10, John Doty j...@noqsi.com wrote:
From: John Doty j...@noqsi.com
Subject: Re: gEDA-user: Matching footprints with symbols
To: gEDA user mailing list geda-user@moria.seul.org
Received: Saturday, April 17, 2010, 1:10 PM
On Apr 16, 2010, at 10:44 PM, Matthew
It seems like there is room to add a footprint selector utility that
would interface between gschem/gattrib and PCB without impacting
non-PCB users in any way. In fact if PCB had an HID where it just
starts up as a footprint browser and nothing else, you could use PCB
itself
You might find University of South Carolina 's VTB (Virtual Test Bench)
software useful. It is free to download (but seems to be closed source
-- I couldn't find any details on the license).
[1]http://vtb.engr.sc.edu/vtbwebsite/#/Overview
It's intended for doing multidisciplinary
This makes sense, but the 'apply' button seems redundant. As soon as you
select a component from the list, it should be available for placement, with no
button required.
OK - place the selected component, remove dialog (permanently)
Apply - place the selected component, leave dialog
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