Does anybody know if it's possible to compile gnetlist (and its
dependency libgeda) without gtk? From the source, it looks like
gnetlist should compile fine, but libgeda has quite a few gdk
references that I would have to remove. I'm trying to use gnetlist on
a headless Gentoo server, and I'd ra
Thanks for the suggests. I'll try them out tonight. Unfortunately,
Gentoo has no concept of devel libraries: it's all or nothing. So
I'll probably have to follow the first Peter's suggestion.
-Alan
On Thu, Mar 11, 2010 at 6:50 AM, Peter Clifton wrote:
> On Wed, 2010-03-10 at 22:30 -0700, asom.
Yes, it is very difficult. But I can think of two ways to make it easier:
1) Get a MIDI guitar. Some companies make guitars that either use
signal processing or buttons-as-frets to produce a MIDI output.
2) Get a guitar with independent pickups for each string. Some
companies make acoustic-elect
Your real problem seems to be that you don't have to any opamp models.
You can either:
1) Get the manufacturer's model, which may have to be modified to work
in your simulator
2) Get spicelib from http://github.com/werner2101/spicelib . It will
download a large number of models from the vendors a
Spicelib (http://www.h-renrew.de/h/spicelib/doc/index.html) is an
attempt to provide a library of spice models for gnucap and ngspice
users that skirts licensing problems. Much like how Gentoo's Portage
deals with non-redistributable but free-to-download software, spicelib
downloads models directl
The problem is that there are very few public-domain spice models.
Every semiconductor vendor has their own license (sometimes several)
for their spice libraries. Only some of these licenses allow
redistribution. Furthermore, because the licenses are carelessly
written and applied, they are often
I suggest the "External Links" section of the front page, the text
"Spicelib provides a large library of spice models tested with Gnucap
and NGSpice", and the URL www.h-renrew.de/h/spicelib/doc/index.html .
Also, thanks for writing DJGPP so long ago. I'm still using CWSDPMI
at work on my DOS mach
On Mon, May 3, 2010 at 11:33 AM, Kai-Martin Knaak wrote:
> On Wed, 28 Apr 2010 14:48:40 -0600, asomers-Re5JQEeQqe8AvxtiuMwx3w wrote:
>
>> I suggest the "External Links" section of the front page,
>
> Hmm, what front page? I can't seem to find "External
It should work fine, but remember to write a script that bit flips
your PROM image too.
As for SDRAM, there are a few gotchas. First, what is the width of
your SDRAM? If it's 8-bits wide, then you're golden. But if it's
wider, then you need to remember that SDRAM can be accessed 8, 16, or
32 bi
I have had trouble with sch2svg. When I tried it IIRC some lines
would get cut out. Instead, I use a convoluted path
sch->eps->eps->sk->svg . I've included the script that I use for this
conversion.
# vim: filetype=python
import os.path
Import('env')
builder = Builder(action = 'gschem -p -o
On Wed, Jul 14, 2010 at 10:32 PM, Dave N6NZ wrote:
>
> On Jul 14, 2010, at 7:46 PM, Windell H. Oskay wrote:
>
>>
>> On Jul 14, 2010, at 7:36 PM, Ales Hvezda wrote:
>>>
>>> And my usual questions:
>>>
>>> http://lwn.net/Articles/396011/
>>
>> I've had some part in this. Whether or not proprietary
In this case, the solver will not need to add extra steps internally.
You specified a sin generator, whose output is a simple function of
time, and a resistor. The whole circuit is memoryless. At 60Hz, the
period is just 16.6ms. With a 10ms step size, of course you're going
to see an aliased wav
No. GPLv3 says that it must be _possible_ for the user to update his
GPLed code, but it need not be easy. You can even ship GPLv3 code in
an OTP chip. Basically, just don't use DRM to prevent the user from
changing his code when he could otherwise. The intent is to prevent
GPLed code from being
How about a Kickstarter project for the toporouter? Let Anthony make
a proposal and put it on www.kickstarter.com, and then gEDA users can
pledge donations. If it raises enough money by graduation (or
whatever other deadline), then we all fund Anthony to work on it. If
we don't raise enough, the
Adding the NoConnection DRC attribute to a net causes the drc2 backend
to ignore it when checking for unconnected nets. However, drc2
currently doesn't enforce that the net is actually unconnected. It's
possible to mark two pins as NoConnection and then accidentally wire
them together. This patc
That chip is a quad analog switch, right? I would set the pin types
to "pas" because they aren't digital pins at all. The enable pin is
definitely of type "in".
On Tue, Jan 4, 2011 at 1:42 PM, Stephan Boettcher
wrote:
>
> "Johnny Rosenberg" writes:
>
>> I created this symbol, it's the 74-serie
Do you mean muriatic acid and hydrogen peroxide? Those are not
hazardous chemicals, if they are neutralized. The hydrogen peroxide
is easy to neutralize; just put a piece of charcoal in the bottle and
it should decompose. Exposing it to sunlight will also work.
Muriatic acid could be harder, dep
Yes, it's very easy to make H2O2 decompose. Activated carbon does it
very quickly, but charcoal works too. Just don't use charcoal
briquettes imbued with lighter fluid!. And if your sink is getting
damaged, I would guess that the problem is too much base, not too much
H2O2. Strong bases can etc
When I design surface mount boards I make extensive use of planes, and
it is a severe annoyance that I can't automatically connect those
planes to component pads. The standard solutions to this problem seem
to be either:
1) Use a solid plane. But that makes soldering difficult.
2) Draw a very s
The IPC- table of contents shows that "Thermal Relief in Conductor
Planes" gets only one tenth of a page. I can't imagine any detailed
information in that space. It's sister document, IPC-2221, can be
found for free at
http://www.victronics.cl/Inf_tecnica/Notas%20de%20aplicacion/PCBs/IPC-2221
I have to agree with Mark. Maintaining a hierarchical organization
would be a laborious and thankless job for one poor schmuck. But a
tagging scheme puts most of the burden on individual contributors. I
think it could actually work.
On Thu, Feb 3, 2011 at 11:00 AM, Mark Rages wrote:
> On Thu,
opamp_quad.sym, opamp_quad_pwr.sym, 78L05ACZ.sym, and
pmosfet_power.sym, at least.
On Sun, Mar 13, 2011 at 10:34 PM, Geoff Swan wrote:
> Yes
>
> On Mon, Mar 14, 2011 at 12:14 PM, Kai-Martin Knaak
> <[1]k...@lilalaser.de> wrote:
>
> Hi.
> I am curious: Is anyone on the list using the
I agree. I find the two-letter commands to be very fast to use.
They're one of the main reasons why I prefer gschem to the expensive
proprietary program I used at my last job. But maybe that's just
because I'm a vi user. ;)
On Thu, Sep 8, 2011 at 10:05 AM, Mark Rages wrote:
> On Thu, Sep 8, 201
Windows Version: Windows 7 x64 in VirtualBox on ubuntu 11.04 x86_64
Mouse type: paravirtualized
Z/z keys: they work
Scroll wheel: works
Synaptic bars: not present
Zooming via menu: works
v key when board is flipped: doesn't work (bug #841547)
On Thu, Sep 15, 2011 at 1:13 PM, DJ Delorie wrote:
>
>
A long time ago someone posted to this list about a converter he had
written to produce svg files from schematics. His website,
http://www.mycgiserver.com/~emem00/sch2svg/, is gone. Then in 2007
somebody posted to geda-dev that they had mirrored the script at
http://geda.seul.org/misc/sch2svg.tgz
That looks like the one, but there's one small problem: on your
website you named the file .gz when it's actually a .tar.gz .
Also, somebody should fix the link at http://www.gpleda.org/links.html
-Alan
On Sun, Aug 2, 2009 at 8:35 AM, Bob Paddock wrote:
> On Sat, Aug 1, 2009 at 12:46 PM, wrote:
>
Have you heard of the free logic analyzer?
http://www.sump.org/projects/analyzer/ . It uses a xilinx dev board
and java control software. It has also been ported to several other
FPGA boards. The serial interface might be simple enough for you to
use with your project. At my last job, I used th
I've just posted the first public release of my new project, Mr.
Filter. It's an analog active filter design assistant. Currently
only low-pass and high-pass SallenKey filters are supported, but I'm
working on extending it. Gschem is used in the build process to
generate all the schematics. The
Oops. It seems that anonymous viewing is not allowed. IIRC, that has
to be changed in LocalSettings.php. But I can't find any way to
access that file right now. I'll try to fix it as soon as I can. In
the meantime, I think you can log in with any sourceforge account.
FWIW, you aren't missing
To install as a normal user on unix, you can do
% python setup.py install --home=~
This will put all of the files in your home directory. They'll go
into ~/bin , ~/share, etc. To run it, you will have to set the
environment variable
% export PYTHONPATH=~/lib/python
or wherever python installed th
With every PCB vendor that I've ever worked with, I've specified the
drill sizes in 'size of finished hole, after plating', and the vendor
has known what to do.
-Alan
On Wed, Aug 26, 2009 at 6:31 PM, John Luciani wrote:
>
> On Wed, Aug 26, 2009 at 8:23 PM, gene glick
> <[1]carzr...@optonline.n
Yes, I know what your problem is:
1) Mr. Filter requires python 2.6 . Sorry about that. I may try to
backport it to an earlier version of python when I have time.
2) rather than adding that code to the mrfilter script, I suggest you
set the following environment variable:
$ export PYTHONPATH=~/m
I, and judging from the mailing lists and forums many others, are
frustrated by the difficulty of finding spice models that are
compatible with open-source circuit simulators. Common replies are
"you don't need that level of detail" or "find a model library buried
in the vendor's website, pick a m
That script looks good; I'll take a look at it.
On Wed, Sep 16, 2009 at 3:56 AM, Werner Hoch wrote:
> Hi Alan,
>
> On Mittwoch, 16. September 2009, asom...@gmail.com wrote:
>> So my question is, should I make a new project which is a library of
>> models to use with open source simulators? I thi
Please do publicize the repository. Or give me your own url, if
you're running a server.
-Alan
On Sat, Sep 19, 2009 at 7:29 AM, Kai-Martin Knaak wrote:
> On Sat, 19 Sep 2009 16:07:29 +0200, Werner Hoch wrote:
>
>> I've all the stuff in a local git repository, I can push it to a public
>> reposit
Thanks. I'll work on integrating my Linear Technology scripts.
On Mon, Sep 21, 2009 at 3:13 AM, Werner Hoch wrote:
> Hi Alan,
>
> On Montag, 21. September 2009, asom...@gmail.com wrote:
>> Please do publicize the repository. Or give me your own url, if
>> you're running a server.
>
> I've pushe
I favor gpleda. spice files aren't really symbols and adding them to
gedasymbols would confuse that website's purpose. But gpleda is a
multipurpose website and our spice library would fit nicely there.
-Alan
On Mon, Sep 21, 2009 at 5:18 PM, Kai-Martin Knaak wrote:
> On Mon, 21 Sep 2009 12:18:41
Probably you need to do this:
edit scripts/geda-parts.scm and fix the path to your repository.
If it still doesn't work, send me the output, both to the terminal and
the html, of
scripts/testlibrary -p indexfiles/nxp_diodes.index BAS116H_NXP01004
-Alan
On 9/26/09, Bert Timmerman wrote:
> Hi We
I second this request. All of the quantitative data that I have seen
basically says that for a given dielectric, the inductance is a
function of the package size and shape regardless of the capacitance.
And yet the rule of thumb continues to be mixing capacitor values to
handle a range of frequenc
"Horror" is the correct description of my first thought. EDA is such
an inherently graphical task, a gui seems natural. But you apparently
did without, so maybe I can too? Is uEDA public yet? I'd like to
check it out. If you could write a non-gui PCB layout tool, I'd be
even more impressed.
-A
Two thoughts:
First, if you are saturating your op-amp, then why not using a
comparator instead? Even the humble LM339 has a large signal response
time of 300ns, which at your voltage is equivalent to a slew rate of
50V/us
Secondly, the opamp's datasheet specified the slew rate using an
invertin
The Art of Electronics by Horowitz and Hill. It's the masterpiece of
circuit design. Broad but shallow. Start with it.
-Alan
On Tue, Nov 24, 2009 at 7:34 AM, Karl Hammar wrote:
> Can anyone recommend some good books on analog circuit design for
> audio, precision/low noise op.amp., emc, active
High Speed Digital Design: A Handbook of Black Magic by Johnson and
Graham is a great text for anyone interested in signal integrity and
EMI. It's no spring chicken, but PCB technology hasn't actually
advanced much these last 16 years; it's just gotten cheaper and more
available. I found the mate
For two layer boards, plating the holes is the hardest part. You can
get through-hole rivets, but I've never tried them. One trick is to
make a two layer board, but use jumpers to connect the two sides. You
just need to make extra large vias with solder pads on each side and
then stick a short s
I'm trying to do DC parameter sweeps in ngspice. I'd really like to
do them in log scale, but it seems that ngspice only supports linear
scale for DC sweeps. Over the input range I'm simulating, a linear
sweep takes far too long. So I'm looking for a workaround. I thought
that maybe I'd do the
That sounds like it could work. I'll give it a try...
On Thu, Jan 14, 2010 at 9:14 PM, John Doty wrote:
>
> On Jan 12, 2010, at 8:41 PM, asom...@gmail.com wrote:
>
>> I'm trying to do DC parameter sweeps in ngspice. I'd really like to
>> do them in log scale, but it seems that ngspice only supp
If you can guarantee that R3 will always drop enough voltage, then you
should be fine. But consider what your circuit is going to do on
power-up and power-down, and if there will be any voltage spikes. If
you don't think your solution will cut it, you could add a zener diode
between ground and R2
On Fri, Feb 26, 2010 at 10:44 PM, Ales Hvezda wrote:
>
> http://hardware.slashdot.org/comments.pl?sid=1564716&cid=31289534
>
> Let me be the first to apologize. :-) Although, a couple people have
> posted that gEDA's documentation lacks in places.
>
> Any volunteers for: "Make a beginners interfa
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