Great. How do I ask Ales for a login?
Got it. ahvezda at geda.seul.org.
Tarun
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I just asked Ales for a http://geda.seul.org/wiki login. It's for the gEDA
suite
Great. How do I ask Ales for a login?
Tarun
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C P Tarun wrote:
I have read perhaps 100 A4-sized pages of text on gschem and pcb
and the connection between the two, by going through the info pages
for PCB and online tutorials and FAQs. And I remember feeling very
uneasy about the names-versus-numbers issue. But I do not remember
reading any
Thanks, all of you guys. Specially Dan, your explanation of
pin names and numbers was desperately needed.
Here is the problem. In PCB, pins have a name and a number. The number
is specific to the package and the name is specific to whats inside the
package. Lets take a SO8 package that happen
Dan McMahill wrote:
Now that the .cmd file does is it goes through and says "U1-2 (i.e. pin
#2 of U1) happens to be called the "IN-" pin on this particular op-amp".
And it makes all those changes.
Thats all the .cmd file does. If you don't ever load it, nothing bad
happens
Thanks Dan, t
Stuart Brorson wrote:
On Thu, 15 Mar 2007, C P Tarun wrote:
Can any of you please help me with this question? Why didn't
the .cmd file work?
Tarun
see below
Guys,
Can you please help me with one part of my original question?
1. When I load the netlist into the PCB program, it gives
Can you please help me with one part of my original question?
1. When I load the netlist into the PCB program, it gives errors
saying that it couldn't find pins with the names given in the
footprints, or some such thing. Just try loading my .pcb file
first, then try loading the ne
> Umm, Dan and DJ are the right ones to answer this question. It's
> possible the renaming functionality hasn't been completely built
> into PCB yet, but they are the experts -- not me.
I wouldn't know. I never run the command scripts when I run gsch2pcb.
_
e.
Stuart
On Thu, 15 Mar 2007, C P Tarun wrote:
Can any of you please help me with this question? Why didn't
the .cmd file work?
Tarun
-- Forwarded message --
From: C P Tarun <[EMAIL PROTECTED]>
Date: Mar 14, 2007 9:33 PM
Subject: Re: gEDA-user: Hi first post
To: g
Can any of you please help me with this question? Why didn't
the .cmd file work?
Tarun
-- Forwarded message --
From: C P Tarun <[EMAIL PROTECTED]>
Date: Mar 14, 2007 9:33 PM
Subject: Re: gEDA-user: Hi first post
To: gEDA user mailing list
Guys,
Can you ple
Guys,
Can you please help me with one part of my original question?
1. When I load the netlist into the PCB program, it gives errors
saying that it couldn't find pins with the names given in the
footprints, or some such thing. Just try loading my .pcb file
first, then try loading t
I am building a board with a couple of 1020 pin BGAs the "pins" are
normally "numbered" by a row column system that uses letter for one axis
and numbers for the second axis. Both PCB and gschem use character
strings for the pin numbers and it works well. This implies that both
Y21 and 14 can be val
2. Yes, lots of people call for heavy symbols, in which each symbol
calls out a specific footprint, and there's no discrepancy between
pinnumber on the symbol and on the footprint.
Hmmm... I think this is the approach which is "safest" for a novice
designer like me. I guess I'll just roll my ow
I use a part that has a NPN and a PNP in one package. Six leads, six position
numbers,
2 C's, 2 B's, 2 E's. How would you deal with that?
For any device other than transistors, I guess numbers are fine.
After all, for those devices, you don't have a universally accepted
single symbol which i
On Tue, 13 Mar 2007, Steve Meier wrote:
geda and pcb don't care if the pinnumbers are numbers or strings. As
long as they are the same.
Yeah, but since there are multiple symbols for many devices, and
multiple footprints for a single symbol, it's best for us to
standardize on a common pinnumbe
C P Tarun wrote:
What is the general opinion about keeping symbol pin numbers for
transistors as "B", "C" and "E"? Isn't this better?
No, just different.
It sure sounds logical to use B,C,E,S,G,D as pin numbers in netlists, but the
usual product datasheets use a package drawing with numbers fo
On Mar 13, 2007, at 9:20 AM, C P Tarun wrote:
geda and pcb don't care if the pinnumbers are numbers or strings. As
long as they are the same.
From a preference point of view I like the pin numbers to match the
component data sheet.
This is the part I too would have thought was natural. I woul
Yeah, like John pointed out this is a problem with the symbol
${geda install dir}/share/gEDA/sym/analog/npn-2.sym. It uses B, C,
and E as the pin numbers. The pinnumber needs to be a number, and
the numbers should correspond to the numbers on the footprint you want
to use.
Even if I assume tha
Thanks, all of you. I really appreciate the help. Am feeling a lot
more relieved.
I now realise that just like I like my own resistors and capacitor
footprints more than the ones I found in the PCB libraries, I will
probably need to build my own edited collection of gschem symbols.
I can live wit
geda and pcb don't care if the pinnumbers are numbers or strings. As
long as they are the same.
>From a preference point of view I like the pin numbers to match the
component data sheet.
Steve Meier
On Tue, 2007-03-13 at 11:35 -0400, Stuart Brorson wrote:
> > Change the pin names to numbers in
Change the pin names to numbers in the schematic symbol files. Then
the footprint pin numbers will map to schematic symbol pin numbers.
Yeah, like John pointed out this is a problem with the symbol
${geda install dir}/share/gEDA/sym/analog/npn-2.sym. It uses B, C,
and E as the pin numbers. T
On 3/13/07, C P Tarun <[EMAIL PROTECTED]> wrote:
> And here's your netlist:
>
> unnamed_net2R2-2 Q1-B R1-2
> unnamed_net1R1-1 C1-2
> siggnd R2-1 Q2-E Q1-E C1-1
>
> So what's wrong? Q1-B, Q1-E and Q2-E all exist, as in your schematic;
> the other connections don't. I may be dense, but I
And here's your netlist:
unnamed_net2R2-2 Q1-B R1-2
unnamed_net1R1-1 C1-2
siggnd R2-1 Q2-E Q1-E C1-1
So what's wrong? Q1-B, Q1-E and Q2-E all exist, as in your schematic;
the other connections don't. I may be dense, but I don't see any
problem with what you have..
You're not den
I tried building a simple toy schematic using gschem and pushing
it to PCB, but my netlist is not showing all the connections, because
the pin names (numbers?) of the transistor symbols in the
schematic are not matching with the TO92 pin names (numbers?)
in the footprint, even after I run the .cmd
> What I really need to know is how did this happen? When using gschem, I
> tried moving each transistor to check whether the nets were connected to
> the pins or not, and they moved with the symbol, showing connection.
> After that, why did the connections not show up in the netlist?
They did sh
C P Tarun wrote:
Simple as that.
Q2 pin E is connected to net siggnd.
Great. Thanks for identifying this.
What I really need to know is how did this happen? When using gschem, I
tried moving each transistor to check whether the nets were connected to
the pins or not, and they moved with the s
Your netlist at
http://www.dhandanought.org/tcpip/audio/EXP/geda-probs/test-schem.net
does have all the connections made in the schematic The schematic
shows no connection to
B or C on the transistors. siggnd has Q2-E which is all there is for Q2.
Simple as that.
Q2 pin E is connected to n
C P Tarun wrote:
I tried building a simple toy schematic using gschem and pushing
it to PCB, but my netlist is not showing all the connections, because
the pin names (numbers?) of the transistor symbols in the
schematic are not matching with the TO92 pin names (numbers?)
in the footprint, even a
Welcome !
Read your post on diyaudio as well.
I am active as blu_line over there.
Kewl!! So we diy audio guys do have some presence in the
geda gang after all! Great. :) Hope to see interesting circuits
built using geda. I'm waiting for the time I'll get my first
audio circuits done using gsche
Hi tcpip,
Welcome !
Read your post on diyaudio as well.
I am active as blu_line over there.
grtz
Simon
- Original Message
From: C P Tarun <[EMAIL PROTECTED]>
To: geda-user@seul.org
Sent: Tuesday, 13 March, 2007 10:17:51 AM
Subject: gEDA-user: Hi first post
Hi guys,
I&#x
Hi guys,
I'm new to this list, and I've just begun exploring gschem and PCB
a week or so back. Thought I'd introduce myself.
I am an engineer by qualification and am interested in audio system
building. Hence my need for a circuit design environment. I have
used Eagle (the free version) for a fe
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