Re: gEDA-user: wrong pinout lm7912 symbol

2007-09-16 Thread Werner Hoch
Hi John,

On Saturday 15 September 2007 15:03, John Luciani wrote:
 On 9/15/07, Werner Hoch [EMAIL PROTECTED] wrote:
You should be fairly safe with the pinouts of the LM79xx and
LM78xx since they are older parts and the variety of power
dissipation packages is small.
 
  There's a TO92 package out there, too.

 Is the TO92 package for LM79xx or for an LM79Lxx?

Maybe it was a LM79Lxx.

 The dropout voltage on the LM79xx series is fairly high. I would be
 surprised to see it in a TO92 package.

The voltage drop does not care for low current applications, only the  
power does.

Regards
Werner


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Re: gEDA-user: pcb-20070912

2007-09-16 Thread John Coppens
On Sat, 15 Sep 2007 22:21:30 -0400
Dan McMahill [EMAIL PROTECTED] wrote:

  When I call the command window with ':', it appears without the text
  entry field (Dropdown and Close buttons are there). When I press the
  dropdown button, _crash_ - pcb disappears!
  
  John
 
 wierd.  I'm not able to reproduce this.  I get the entry and no crash. 
 Which GUI are you using?  Lesstif or Gtk?  What happens if you go into 
 the preferences-general tab and turn off the separate command window 
 option?
 
 Can you get a back trace on the crash?
 

Hi Dan.

Another day, no more crashes. I'll try more later today. Maybe they
appear after a while of usage (as they did they other day).

There are a few suspicious messages I hadn't seen because I normally
don't call PCB from a terminal.

1) When opening the 'Open file' dialog, I get four times:

*** attempt to put segment in horiz list twice

2) When toggling the unit button, I get (not the first time):

(pcb:20034): Gtk-CRITICAL **: gtk_toggle_action_set_active: assertion
`GTK_IS_TOGGLE_ACTION (action)' failed handle_grid_units_change()
get_grid_value_index()
get_grid_value_index()

(pcb:20034): Gtk-CRITICAL **: gtk_toggle_action_set_active: assertion
`GTK_IS_TOGGLE_ACTION (action)' failed

I'll try to re-crash this evening.

Thanks,
John


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gEDA-user: Question regarding 1st LTSpice simulation

2007-09-16 Thread Robert Butts
I tell my son the only dumb question is the one never asked.  So with
that...

 I'm doing an LTSpice simulation and following Stuart's howto.  In the
Running LTSpice with gEDA designs step 5 is:

Create a link from your netlist output.net and a netlist in the directory
in which SwCADIII lives. Make the netlist suffix .cir. For example: ln -s
${DESIGN_HOME}/output.net ${WINE_HOME}/.wine/fake_windows/Program
Files/LTC/SwCADIII/MyDesign.cir

My questions are these:

1.  Earlier in the howto I was directed to netlist my design and name it
design.cir.  This is the netlist in my design directory and it ends in .cir
not .net.  Should Stuart's howto read ${DESIGN_HOME}/output.cir and not
output.net?

2.  Did I miss something and I was supposed to copy the netlist to the
directory in which SwCADIII lives or does the link create a phantom netlist?

Thanks,
Rob


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Re: gEDA-user: Question regarding 1st LTSpice simulation

2007-09-16 Thread Andy Peters
On Sep 16, 2007, at 12:49 PM, Robert Butts wrote:

  I'm doing an LTSpice simulation and following Stuart's howto.  In the
 Running LTSpice with gEDA designs step 5 is:

 Create a link from your netlist output.net and a netlist in the  
 directory
 in which SwCADIII lives. Make the netlist suffix .cir. For example:  
 ln -s
 ${DESIGN_HOME}/output.net ${WINE_HOME}/.wine/fake_windows/Program
 Files/LTC/SwCADIII/MyDesign.cir

 My questions are these:

 1.  Earlier in the howto I was directed to netlist my design and  
 name it
 design.cir.  This is the netlist in my design directory and it ends  
 in .cir
 not .net.  Should Stuart's howto read ${DESIGN_HOME}/output.cir and  
 not
 output.net?

LTSpice doesn't care whether the netlist is called .net or .cir.

 2.  Did I miss something and I was supposed to copy the netlist to the
 directory in which SwCADIII lives or does the link create a phantom  
 netlist?

you can open the file from anywhere; it does not have to be in the  
SwCAD III directory.  However, SwCADIII has a ridiculous hard-coded  
library directory structure ...

-a



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Re: gEDA-user: dialogue boxes drifting each time they are opened (gschem 1.2.0)

2007-09-16 Thread Cesar Strauss

Cesar Strauss wrote:

Ben Jackson wrote:

Duncan Drennan wrote:

This can be especially frustrating with attribute dialogues that keep
drifting off the bottom of the screen, and have to be dragged back to
a useable place.

I'm running gschem on cygwin.

Anyone else seeing this?

Yes, gschem on cygwin as well.



I think it's a bug in Cygwin/X multi-window mode, triggered by new code 
in gschem that restores the dialog positions.




The attached patch contains a workaround: show the dialog before 
restoring its position.


The patch is also available in the patch tracker:
[ 1795879 ] Fix for dialogs drifting downwards on Cygwin/X
http://sourceforge.net/tracker/index.php?func=detailaid=1795879group_id=161080atid=818428

Regards,
Cesar


From 67ec59b69f10d82b7111fede109873e32b238439 Mon Sep 17 00:00:00 2001
From: Cesar Strauss [EMAIL PROTECTED]
Date: Sun, 16 Sep 2007 16:56:18 -0300
Subject: [PATCH] Fix for dialogs drifting downwards on Cygwin/X.

On Cygwin/X, reopening a gschem dialog restores its original position,
but with a small vertical offset.

The workaround is to show the dialog before restoring its position.

The docs for gtk_window_move() offer a possible justification:
  Most window managers ignore requests for initial window positions
  (instead using a user-defined placement algorithm) and honor requests
  after the window has already been shown.

The downside is, if you have a slow system, you could see the dialog
appear briefly at the old position, I suppose.
---
 gschem/src/gschem_dialog.c |6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gschem/src/gschem_dialog.c b/gschem/src/gschem_dialog.c
index b4eefd0..bc5771b 100644
--- a/gschem/src/gschem_dialog.c
+++ b/gschem/src/gschem_dialog.c
@@ -220,6 +220,9 @@ static void show_handler (GtkWidget *widget)
   gchar *group_name;
   GschemDialog *dialog = GSCHEM_DIALOG( widget );
 
+  /* Let GTK show the window */
+  GTK_WIDGET_CLASS (gschem_dialog_parent_class)-show (widget);
+
   group_name = dialog-settings_name;
   if (group_name != NULL) {
 
@@ -230,9 +233,6 @@ static void show_handler (GtkWidget *widget)
  dialog_geometry, group_name);
 }
   }
-
-  /* Let GTK show the window */
-  GTK_WIDGET_CLASS (gschem_dialog_parent_class)-show (widget);
 }
 
 
-- 
1.5.3



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Re: gEDA-user: Question regarding 1st LTSpice simulation

2007-09-16 Thread Robert Butts
When I'm creating the link how do you type the space in the directory
Program Files?  See below:

/fake_windows/Program Files/LTC/SwCADIII/MyDesign.cir

On 9/16/07, Andy Peters [EMAIL PROTECTED] wrote:

 On Sep 16, 2007, at 12:49 PM, Robert Butts wrote:

   I'm doing an LTSpice simulation and following Stuart's howto.  In the
  Running LTSpice with gEDA designs step 5 is:
 
  Create a link from your netlist output.net and a netlist in the
  directory
  in which SwCADIII lives. Make the netlist suffix .cir. For example:
  ln -s
  ${DESIGN_HOME}/output.net ${WINE_HOME}/.wine/fake_windows/Program
  Files/LTC/SwCADIII/MyDesign.cir
 
  My questions are these:
 
  1.  Earlier in the howto I was directed to netlist my design and
  name it
  design.cir.  This is the netlist in my design directory and it ends
  in .cir
  not .net.  Should Stuart's howto read ${DESIGN_HOME}/output.cir and
  not
  output.net?

 LTSpice doesn't care whether the netlist is called .net or .cir.

  2.  Did I miss something and I was supposed to copy the netlist to the
  directory in which SwCADIII lives or does the link create a phantom
  netlist?

 you can open the file from anywhere; it does not have to be in the
 SwCAD III directory.  However, SwCADIII has a ridiculous hard-coded
 library directory structure ...

 -a



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gEDA-user: Footprint for test points?

2007-09-16 Thread Randall Nortman
Seems a trivial thing, but what do you all use as a footprint for test
points on the board?  I'm just looking for something I can stick a
meter probe onto easily, and maybe solder a wire onto if I need to
modify the circuit in an unanticipated way.  I am thinking that either
a fairly fat pin (which will end up plated through) or just a circular
SMT pad would be about right -- and how do I make a circular SMT pad?
I guess a square pad would be fine except for aesthetics and
expectations.  If anybody has a ready-made footprint, I'd appreciate a
pointer to it.  (I searched on gedasymbols.org and didn't find any
footprints -- though DJ did have an appropriate gschem symbol.)

-- 
Randall


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Re: gEDA-user: dialogue boxes drifting each time they are opened (gschem 1.2.0)

2007-09-16 Thread Peter Clifton

On Sun, 2007-09-16 at 17:43 -0300, Cesar Strauss wrote:
 Cesar Strauss wrote:
  Ben Jackson wrote:
  Duncan Drennan wrote:
  This can be especially frustrating with attribute dialogues that keep
  drifting off the bottom of the screen, and have to be dragged back to
  a useable place.
 
  I'm running gschem on cygwin.
 
  Anyone else seeing this?
  Yes, gschem on cygwin as well.
 
  
  I think it's a bug in Cygwin/X multi-window mode, triggered by new code 
  in gschem that restores the dialog positions.
  
 
 The attached patch contains a workaround: show the dialog before 
 restoring its position.
 
 The patch is also available in the patch tracker:
 [ 1795879 ] Fix for dialogs drifting downwards on Cygwin/X
 http://sourceforge.net/tracker/index.php?func=detailaid=1795879group_id=161080atid=818428

This will have to be tested against various different window managers.
It took a fair bit of iteration to get the previous version to work
without visual artifacts when presenting windows.

Peter




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Re: gEDA-user: Footprint for test points?

2007-09-16 Thread John Luciani
On 9/16/07, Randall Nortman [EMAIL PROTECTED] wrote:
 Seems a trivial thing, but what do you all use as a footprint for test
 points on the board?  I'm just looking for something I can stick a
 meter probe onto easily, and maybe solder a wire onto if I need to
 modify the circuit in an unanticipated way.  I am thinking that either
 a fairly fat pin (which will end up plated through) or just a circular
 SMT pad would be about right -- and how do I make a circular SMT pad?
 I guess a square pad would be fine except for aesthetics and
 expectations.  If anybody has a ready-made footprint, I'd appreciate a
 pointer to it.  (I searched on gedasymbols.org and didn't find any
 footprints -- though DJ did have an appropriate gschem symbol.)

I usually use the footprint CON_TP__Vector_K24 which is for a Vector K24 pin.
I also have footprints for the Keystone 5000, 5005 and 5010 test points.

They are under the connector heading at
http://www.luciani.org/geda/pcb/pcb-footprint-list.html

(* jcl *)

-- 
http://www.luciani.org


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Re: gEDA-user: Footprint for test points?

2007-09-16 Thread DJ Delorie

 Seems a trivial thing, but what do you all use as a footprint for test
 points on the board?

I usually just add vias wherever I need one; mine aren't official in
that they're not in the schematics.

 I'm just looking for something I can stick a meter probe onto
 easily, and maybe solder a wire onto if I need to modify the circuit
 in an unanticipated way.

You want a one pin, 35 mil drill, header.  That's just right for
soldering in a 25mil square pin or a 22 gauge wire.

 and how do I make a circular SMT pad?

Create a line.  Drag one end to overlap the other, creating a
zero-length line.  Cut to the buffer and convert to an element.  Poof!
Circular pad.


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Re: gEDA-user: dialogue boxes drifting each time they are opened (gschem 1.2.0)

2007-09-16 Thread Ales Hvezda
[snip]
This will have to be tested against various different window managers.
It took a fair bit of iteration to get the previous version to work
without visual artifacts when presenting windows.

Another possibility is to make this ordering difference 
configurable.

-Ales



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Re: gEDA-user: Footprint for test points?

2007-09-16 Thread Randall Nortman
On Sun, Sep 16, 2007 at 08:11:40PM -0400, DJ Delorie wrote:
 
  Seems a trivial thing, but what do you all use as a footprint for test
  points on the board?
 
 I usually just add vias wherever I need one; mine aren't official in
 that they're not in the schematics.

Except when you have your boards fabbed with soldermask, vias end up
covered.  My smaller vias are often plugged up with mask, though
larger ones do usually end up as holes, but the annular ring is
still covered.  Either way, it's hard to get a solid connection to it
with a test probe.


  and how do I make a circular SMT pad?
 
 Create a line.  Drag one end to overlap the other, creating a
 zero-length line.  Cut to the buffer and convert to an element.  Poof!
 Circular pad.

Right, I knew this, as I use this trick to make silkscreen dots.  I
should have guess it would work for pads too.

Thanks.

-- 
Randall


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gEDA-user: Special ESC Free Dog gathering this coming Wed, 9.19.2007!

2007-09-16 Thread Stuart Brorson
--   Free Dog Gathering Announcement 

This month there are two exciting opportunities for a Free Dog
gathering in Boston.  We've already had one fruitful get-together at
the Bear Rock Cafe in Reading.  Now, coincident with the Embedded
Systems Conference in Boston's Back Bay, we'll hold a second meeting
so we can meet gEDA users who are in town for the conference!  This
time, we'll meet at the Trident Bookstore and Cafe, 338 Newbury Street
in Boston's Back Bay:

http://www.tridentbookscafe.com/NASApp/store/IndexJsp

We'll meet at 7:00pm either at the bar or in the restaurant area.

As always, the meeting will be an open and informal working session.
Bring your laptop *and* wireless card!  Some items to discuss or work
on include:

*  Stuart will finally merge and commit patches submitted
against gerbv!
*  Spice-sdb and that annoying pinseq attribute
*  Anything up with Fritzing?
*  Looking to next year: Best practices for mentoring
Google's Summer of Code.
*  What's up at the ESC?
*  Whatever you are interested in!

Free Dog is an association of like-minded hackers and engineers
interested in free and open EDA tools. We hold monthly (or sometimes
more frequent) meetings  around the Boston area featuring informal
networking, speakers, and camaraderie. Our goals are to learn more
about CAD, engineering and scientific software, share ideas about our
current projects, and -- most importantly -- have fun with like-minded
people. We welcome new members and participants of all ages.  Students
are particularly welcome!

Date: Wednesday, Sept 19th, 2007.  (*** Note special day ***)
Time: 7:00pm, Eastern US Time.
Location:
   (*** Note special location ***)

IRC:  #geda

For more details, please contact me privately at sdb (* AT *) 
cloud9 (* DOT *) net.


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Re: gEDA-user: Footprint for test points?

2007-09-16 Thread Ben Jackson
On Sun, Sep 16, 2007 at 07:21:47PM -0400, Randall Nortman wrote:
 Seems a trivial thing, but what do you all use as a footprint for test
 points on the board?

I use this, and the named part:

Element[0x0 Electronic Goldmine G13798A Testpoint   0 0 0 0 0 100 0x0]
(
   Pin[0 0 10500 2000 12500 6500  1 0x01]
   ElementArc[0 0 6250 6250 0 360 1000]
)

You can see 3 (two black, one orange) on this board:

http://ad7gd.net/flex/flex-build4.jpg

Hm, looks like goldmine is sold out, though :(

-- 
Ben Jackson AD7GD
[EMAIL PROTECTED]
http://www.ben.com/


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Re: gEDA-user: Footprint for test points?

2007-09-16 Thread DJ Delorie

 Except when you have your boards fabbed with soldermask, vias end up
 covered.

They just default that way; you can turn it off.  My latest board has
all the vias exposed, I just selected the whole board and umasked all
selected vias.

Something like this...

Select-All
View-Show Mask
:ChangeClearSize selectedvias =1 mil
:MinMaskGap selectedvias =3 mil

Minmaskgap won't change anything with a *zero* mask, but setting the
vias to some small but non-zero number lets you grow them out to your
fab's minimum (mine was 3 mil clearance).


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Re: gEDA-user: Footprint for test points?

2007-09-16 Thread DJ Delorie

 You can see 3 (two black, one orange) on this board:
 
   http://ad7gd.net/flex/flex-build4.jpg
 
 Hm, looks like goldmine is sold out, though :(

Digikey has something similar (if not identical):

http://dkc3.digikey.com/PDF/T073/P2061.pdf

There's some SMT test points too.


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