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'[OT] Eagle: Net from Bus to Pin stays connected on'
2000\05\12@151226 by jamesnewton

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Ok, I'm new (sort of) to this program (Eagle from
http://www.cadsoftusa.com )
so please excuse this if it's a stupid question, but...

I draw a bus that passes by two chips and then name it BUS[0..7] to get 8
signals (not intuitive, why not pop up a quick dialog to ask you how many
signals when you finish a bus?)

I select Net and click on the end (or middle) of the bus, select BUS0, and
then double click on the very tip of the pin on the chip. I repeat this for
the corresponding pin on the other chip. In the brd window, I see the "rats
nest" line appear.

Now, I select Move, pick up the bus, pull it two clicks to the side and set
it down. The nets no longer touch the bus in the sch. On the brd, the rats
nest line is still there. Redraw, save and reopen, etc.. still the same.
Tried putting a Junction on it.

Is this really how this program is supposed to work? You have to move every
net with the bus? Why is it that I can move the chip and the nets follow?

This is the third time I've tried to figure out what it is about this
program that so many people like. The first two times I just gave up. The
first time, it was after realizing that you turn things by right clicking
while moving (which was NOT documented anywhere in that version of the
program) and the next time I made it to the point of Copy puts nothing on
the clipboard and Cut doesn't remove the item from the design... If it
wasn't for
paul.spu.edu/~bolding/ee4211/EagleTutorial/EagleTutorial.html
I wouldn't have gotten this far this time.

I keep coming back because if so many people like it, it must just be me...

James Newton
spam_OUTjamesnewtonTakeThisOuTspamgeocities.com

2000\05\12@153723 by Jon Hylands

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On Fri, 12 May 2000 12:10:46 -0700, James Newton <.....eplus1KILLspamspam@spam@SAN.RR.COM>
wrote:

> I keep coming back because if so many people like it, it must just be me...

I spent a bit of time playing with Eagle in the past week, gave up on
it completely (worthless piece-of-crap excuse for a GUI), and started
using PCBExpress, which is a *HUGE* amount more intuitive...

Later,
Jon

2000\05\12@153901 by Robert A. LaBudde

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<x-flowed>At 12:10 PM 5/12/00 -0700, James wrote:
>Is this really how this program is supposed to work? You have to move every
>net with the bus? Why is it that I can move the chip and the nets follow?

Yup. A lot of individual touch-ups required.

>I keep coming back because if so many people like it, it must just be me...

1. It's free.

2. It's got very extensive libraries of parts, even if they're squirreled
away in almost uninterpretable libraries.

3. There's some way of doing almost anything.

4. It's expandable.

5. It's free.

================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ralspamKILLspamlcfltd.com
Least Cost Formulations, Ltd.                   URL: http://lcfltd.com/
824 Timberlake Drive                            Tel: 757-467-0954
Virginia Beach, VA 23464-3239                   Fax: 757-467-2947

"Vere scire est per causas scire"
================================================================

</x-flowed>

2000\05\12@163739 by douglas.burkett

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I'm new as well to Eagle, I tried what you suggest and got the same result.
However, I'm not certain why you don't just move the chip.  The lines at the
termination end stay connect to the chip pins as it moves.

I wished everything worked the way I wanted it to, but I think Eagle is a
product that could certainly be improved, however when I consider the
alternatives.  Free, autorouter, linked schematic, extensive libraries. The
pluses make it worth learning the idiosyncrasies.

Doug

{Original Message removed}

2000\05\15@093825 by Bennett, Matt

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If I remember correctly (from reading in the manual or the [Eagle]
tutorial), in Eagle, a bus object is only a visual aid, it has no
signifigance electrically.  The "bus" is actually the label BUS[0..7], which
you connect by referring to BUS0, BUS1, and so on.  Check the name of the
net that you had connected to the bus to see if it is still "connected" to
the bus.

Yes, eagle has its quirks, but after using PCBExpress (good for quick,
simple designs, but quickly overwhelmed by a design of any real complexity,
and the last update I ran stopped running properly under NT), Protel (many
versions, usually so buggy that I ended up having to save every 3 minutes),
Pads (poor libraries and an incredibly expensive layout program), Orcad (so
so libraries and poor integration between schematic capture and layout), my
preferred package is Eagle.  So far I have not seen a better integrated PCB
layout program than Eagle.  And in comparison, if you do buy the full
version, the price is an absolute bargain.  Try finding a similarly featured
Schematic Capture/Layout program for less (that supports both windows *and*
Linux).

I use Eagle at home, but for work, I'm mandated to use Orcad.

Matt Bennett

{Original Message removed}

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