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'OT: Eagle CAD (again... sorry)'
1999\04\06@152106 by Roland Andrag

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<DIV><FONT color=#000000 size=2>Hello everyone...</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>With all the noise on the group I feel a bit
guilty posting yet another OT, but I think this one isn't as bad as some I have
seen lately... So, here goes:</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>I am looking for input on the Eagle light
reference manual from registered users. I am strongly considering registering
the program, but would like to know whether the reference manual is more useful
than the help files and any other documentation bundled with the unregistered
version - for example I cannot for the life of me figure out how to connect the
output pin of a 7805 regulator to the supply net without getting an error in the
ERC (and subsequently not having the trace routed).&nbsp; So, in short, is the
reference manual useful - does it explain things properly and make what seems to
be a very powerful program useful? Also, is it supplied only in printed form
(will I have to hold thumbs that the SA postal service will deliver it withing a
month or at all), or is it also supplied electronically...</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>Thanks</FONT></DIV>
<DIV><FONT color=#000000 size=2>&nbsp; Roland</FONT></DIV></BODY></HTML>

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1999\04\06@201255 by Bob Drzyzgula

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The manual is, unfortunately, printed only. It is vastly
superior to the help files, but unfortunately that is not
saying much. It can make the difference between knowing
how to do something and not, but beyond this it is pretty
solidly mediocre. Nevertheless, I find it very hard to
criticise a company for putting more effort into the
product than into the documentation; the world is awash
with dismal programs that have fabulous documentation that
appears to describe some other fantasy program. I'd say,
register the program to get the manual. The libraries are
also somewhat confusing; we all have desperate hopes for
improvements in these areas in Eagle 4.0. There's some
new files on Cadsoft's website that make it simple to
load a schematic that has all the parts in a single library;
this can be be extremely useful when trying to find stuff
in the libs.

As for your first experiences with the program, I'd
guess that you are probably using "wires" to attach
the parts instead of "nets". This drove me crazy for
a while, I think that the problem is that the tutorial
doesn't make this at all clear. Try using the net button,
and make sure that everything is attached correctly --
use the node button to attach crossing wires (excuse me,
nets) where it didn't do that for you. The little eyeball
button will light up everything on a particular net for
you, so you can see if there is a break that you didn't
expect. Also, the supply parts should only be used on the
input side of things. So, for example, put a +9V supply
part (from SUPPLY2) in the schematic and feed it to the
input of the 7805; do similar for the GND part. Then,
when you create an output net connected to the output
pin of the 7805, simply give the net the name +5V; don't
attach a +5V supply part; that will give you an ERC
error. It can take a little adjustment of your mindset,
but Eagle doesn't pay any attention to whether you've
attached the correct voltages to things; there's no way
to specify such an edit check in the design of a part,
all it checks is that ins are are attached to outs. Thus,
the +5V name for the net is simply for your reference.

Hope that this helps,

--Bob

On Tue, Apr 06, 1999 at 09:10:22PM +0200, Roland Andrag wrote:

> I am looking for input on the Eagle light reference
> manual from registered users. I am strongly considering
> registering the program, but would like to know whether
> the reference manual is more useful than the help files
> and any other documentation bundled with the unregistered
...

--
============================================================
Bob Drzyzgula                             It's not a problem
spam_OUTbobTakeThisOuTspamdrzyzgula.org                until something bad happens
============================================================

1999\04\07@032237 by Gerhard Fiedler

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At 21:10 04/06/99 +0200, Roland Andrag <.....randragKILLspamspam@spam@ICON.CO.ZA> wrote:
>
> documentation bundled with the unregistered version - for example I cannot
> for the life of me figure out how to connect the output pin of a 7805
> regulator to the supply net without getting an error in the ERC (and
> subsequently not having the trace routed).


don't know about eagle, but often something like this happens: if the output
pin is defined (in the parts lib) as an output, it will show an error when you
try connecting it to a supply net. but if you redefine this pin in the lib as
something else, maybe "not defined" or "passive" or so, it often will let you
connect it to a supply net.

ge

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