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Missing components in the library... [message #136594] Tue, 15 March 2011 16:51 Go to next message
Element 14 User
Messages: 938
Registered: January 2010
Senior Member
Hello,
Still using the free version and still at newby silly question level.
I am creating (at least trying to) my first PCB board which is going to be a PMW. I started by order all the coponents for m digikey (got an head acke with their web tool..)

My coponents are:
* SN74ACC14N: Found it sounds good
* EVU-F3lFL3B14 (potentiometer): even wiht the datacheet I do not find it
* 1N5817 (diode): can not find it...
* BUL704 (NPN) was not able to find it directly but using the number of the datasheet TO-220 whihc was not in the database either I end up finding it using TO220...
* 1N914BTR (diode) was not able to find it...
And the list is going and going like that on every conponent.
My frustration level in rising, I spent more time looking ofr the components that I will spend on creating the board (step that I have note reached yet...)


So simple question:
1) I am doing something wrong?
2) If I am not doing something wrong where can I find an extended library of components?
3) If netheir one or two is possible, how do you proceed on your side to order components? you try to see if they exist in Eagle then in DIgikey (for example) and then only order them?

Thank you for your help
Re: Missing components in the library... [message #136595 is a reply to message #136594] Tue, 15 March 2011 18:11 Go to previous messageGo to next message
Robert Pearce
Messages: 144
Registered: January 2008
Senior Member
On Tue, 15 Mar 2011, badbad2142 wrote to us saying :
>Hello,
>Still using the free version and still at newby silly question level.
>I am creating (at least trying to) my first PCB board which is going to
>be a PMW. I started by order all the coponents for m digikey (got an
>head acke with their web tool..)
>
>My coponents are:
>* SN74ACC14N: Found it sounds good
>* EVU-F3lFL3B14 (potentiometer): even wiht the datacheet I do not find it

Manufacturer part numbers for pots are often of little use. Most
designers are more interested in form factor. That said, the standard
Eagle libraries are short on pots (there's a good selection of presets
but few of the shaft-and-knob types).

>* 1N5817 (diode): can not find it...

Diodes are a classic example of generic parts, where the library
component doesn't match the part number because 57 varieties of diode
all share the same circuit symbol and package. Look in the diode library
under D-fill and select the package that matches the 1N5817 (check sizes
or package names on the data sheet). Then once you've placed it on the
schematic, set its "value" to 1N5817 and you're done.

>* BUL704 (NPN) was not able to find it directly but using the number of
>the datasheet TO-220 whihc was not in the database either I end up
>finding it using TO220...

Again, there are a LOT of TO220 NPN transistors out there, so the
component is generic. There are also specific transistors in the
library, partly because of the potential confusion of pin ordering (so
it's worth checking that the library part you picked matches your data
sheet, although TO220 is much more standardised than, say, TO92)

>* 1N914BTR (diode) was not able to find it...

Again, you can use a generic D-fill and pick the right package. Note
that the 1N914 is practically identical to the 1N4148 too.

>And the list is going and going like that on every conponent.
>My frustration level in rising, I spent more time looking ofr the
>components that I will spend on creating the board (step that I have
>note reached yet...)
>
>
>So simple question:
>1) I am doing something wrong?

Yes and no. You're expecting exact part numbers where generic
descriptions are used.

>2) If I am not doing something wrong where can I find an extended
>library of components?

Cadsoft web site, in the downloads section.

>3) If netheir one or two is possible, how do you proceed on your side
>to order components? you try to see if they exist in Eagle then in
>DIgikey (for example) and then only order them?
>
Sometimes I check what Eagle already has and order that, but more often
I either have a specific device in mind or already have a drawer-full.
If none of the Eagle libraries includes the part then I create my own
library part.

If you look back through the archives of this group you will see this
repeated time after time: Learn to create your own library parts! It's
not hard, and you're going to have to do it sooner or later. It will
release the power of the tool and enable you to design what you want,
not what somebody else had left lying around. Don't look on the limits
of the existing libraries as a drawback, look on the ease of adding new
ones as the huge plus that it is.

--
Rob Pearce http://www.bdt-home.demon.co.uk

The contents of | All power corrupts, but we need electricity.
this message are |
purely my opinion. |
Don't believe a |
word. |
Re: Missing components in the library... [message #136607 is a reply to message #136594] Wed, 16 March 2011 05:19 Go to previous messageGo to next message
A. Zaffran
Messages: 2333
Registered: November 2008
Senior Member
Am 15.03.2011 21:51, schrieb badbad2142:
> Hello,
> Still using the free version and still at newby silly question level.
> I am creating (at least trying to) my first PCB board which is going to be a PMW. I started by order all the coponents for m digikey (got an head acke with their web tool..)
>
> My coponents are:
> * SN74ACC14N: Found it sounds good
> * EVU-F3lFL3B14 (potentiometer): even wiht the datacheet I do not find it

Sorry, no email adress to send the extended lbr.


> * 1N5817 (diode): can not find it...

Use diode.lbr -> device DIODE- with package variant DO41-10 and set the
VALUE to 1N5817.


> * BUL704 (NPN) was not able to find it directly but using the number of the datasheet TO-220 whihc was not in the database either I end up finding it using TO220...

Use transistor.lbr -> device *-NPN- with package variant TO220 and set
the VALUE to BUL704.

> * 1N914BTR (diode) was not able to find it...

Use diode.lbr -> device DIODE- with package variant DO35-10 and set the
VALUE to 1N914BTR.


> And the list is going and going like that on every conponent.
> My frustration level in rising, I spent more time looking ofr the components that I will spend on
> creating the board (step that I have note reached yet...)

Plase read
HELP USE (enter)
HELP ADD (enter)



Mit freundlichen Grüßen / Best regards

Alfred Zaffran
--
_____________________________________________________________
Alfred Zaffran Support
CadSoft Computer GmbH Hotline: 08635-698930
Pleidolfweg 15 FAX: 08635-698940
84568 Pleiskirchen eMail: <<private_email>>
Web: <www.cadsoft.de>
Registergericht: Amtsgericht Traunstein HRB 5573
Geschäftsführer: Dipl.-Ing. Klaus Schmidinger, Bodo Badnowitz
_____________________________________________________________
Re: Missing components in the library... [message #136608 is a reply to message #136607] Wed, 16 March 2011 05:29 Go to previous messageGo to next message
rk
Messages: 281
Registered: February 2005
Senior Member
Am 16.03.2011 10:19, schrieb A. Zaffran:
> Sorry, no email adress to send the extended lbr.

Please use http://www.cadsoft.de/upload.htm

Rene
Re: Missing components in the library... [message #136617 is a reply to message #136607] Wed, 16 March 2011 11:19 Go to previous messageGo to next message
Element 14 User
Messages: 938
Registered: January 2010
Senior Member
Thank you both for your answers.
My mail adress is <private_email> (mailto:<private_email>) ;-)

I was hoping to spend more time to design the PCB and less on the components selection but I understand that all of them can not exists. It is just hard from the point of view that I am not doing PCB often (in fact it is the first) nor I am working in the electronic field so I am not fluent with the components equivalence (yet).

But I will get at it then...

Thank you again for your answers.
Regards
Alexandre Bessy
Re: Missing components in the library... [message #136675 is a reply to message #136617] Thu, 17 March 2011 21:56 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
badbad2142 wrote:
> Thank you both for your answers.
> My mail adress is <private_email> (mailto:<private_email>) ;-)
>
> I was hoping to spend more time to design the PCB and less on the components selection but I understand that all of them can not exists. It is just hard from the point of view that I am not doing PCB often (in fact it is the first) nor I am working in the electronic field so I am not fluent with the components equivalence (yet).
>

Just a comment from a guy who does electronics design for >25 years:
Packaging, component selection and the creation of library parts is
boring but it is often 50% of the job. Especially on cost critical
designs. So it is very important to learn the library editor of a new
CAD system very soon. Eagle isn't particularly easy to learn in that
respect but with persistence you'll get there.

Afterwards, when you haven't used the program for a while it is normal
to forget things.

By the way, the Digikey search engine is hands down the best there is,
there ever was. If you learn how to use that (easy) it becomes a
wonderful tool to find electronic parts. And now they also let you sort
by price.


> But I will get at it then...
>

En peu du vin rouge, du fromage et la bonne musique ... and it will all
come together nicely :-)

--
Cordialement, Joerg

http://www.analogconsultants.com/
Re: Missing components in the library... [message #136676 is a reply to message #136675] Thu, 17 March 2011 22:09 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Thank you Joerg.
Quoi comme frommage, un chevre par exemple? le boursin ne me dit rien pour l electronique...

I have been able to create my two first items in my library (thanks to kd7vnn http://www.instructables.com/id/How-to-make-a-custom-library-part-in-Eagle- CAD-too/).

I undertsand what you say about 50% of the job but when you are just doing it once in a while it is a bruden... but it is ok.

Now that I here one more question: Why do I struggle so much to have a connection between my wire and my components? one time out of two it does not requognize each other... is there a parameter to make that more automatique?
Re: Missing components in the library... [message #136677 is a reply to message #136676] Fri, 18 March 2011 02:31 Go to previous messageGo to next message
Marius Trusculescu
Messages: 28
Registered: July 2009
Junior Member
On 18.03.11 4:09 AM, badbad2142 wrote:
> Thank you Joerg.
> Quoi comme frommage, un chevre par exemple? le boursin ne me dit rien pour l electronique...
>
> I have been able to create my two first items in my library (thanks to kd7vnn http://www.instructables.com/id/How-to-make-a-custom-library-part-in-Eagle- CAD-too/).
>
> I undertsand what you say about 50% of the job but when you are just doing it once in a while it is a bruden... but it is ok.
>
> Now that I here one more question: Why do I struggle so much to have a connection between my wire and my components? one time out of two it does not requognize each other... is there a parameter to make that more automatique?
>
Maybe your component is off the grid and you have to press "Alt" for the
alternate grid. I had some unconnected components due to this when I
first started using Eagle.
Re: Missing components in the library... [message #136690 is a reply to message #136676] Fri, 18 March 2011 09:02 Go to previous messageGo to next message
Jorge Garcia
Messages: 638
Registered: April 2010
Senior Member
On 3/17/2011 10:09 PM, badbad2142 wrote:
> Thank you Joerg.
> Quoi comme frommage, un chevre par exemple? le boursin ne me dit rien pour l electronique...
>
> I have been able to create my two first items in my library (thanks to kd7vnn http://www.instructables.com/id/How-to-make-a-custom-library-part-in-Eagle- CAD-too/).
>
> I undertsand what you say about 50% of the job but when you are just doing it once in a while it is a bruden... but it is ok.
>
> Now that I here one more question: Why do I struggle so much to have a connection between my wire and my components? one time out of two it does not requognize each other... is there a parameter to make that more automatique?
>

Hi Alex,

I know making components in the library can be a pain. Have you tried
out the make-device-package-symbol-bsdl.ulp included with EAGLE? It
doesn't do everything but can speed up the process of creating ICs and such.

Maybe it's worth a look.

hth,
Jorge Garcia
Re: Missing components in the library... [message #136711 is a reply to message #136676] Fri, 18 March 2011 16:05 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
badbad2142 wrote:
> Thank you Joerg. Quoi comme frommage, un chevre par exemple? le
> boursin ne me dit rien pour l electronique...
>

I like both goat cheese and Boursin, even when doing electronic design :-)

You guys live in paradise when it comes to cheese. The Camembert we can
get in America is a far cry from the cheese I enjoyed in France (where
you take a bite and your breath stops for a couple of seconds). Luckily
we can buy Boursin.


> I have been able to create my two first items in my library (thanks
> to kd7vnn
> http://www.instructables.com/id/How-to-make-a-custom-library-part-in-Eagle- CAD-too/).
>
>
> I undertsand what you say about 50% of the job but when you are just
> doing it once in a while it is a bruden... but it is ok.
>

That's the same with all software. I just finished my tax preparation
(to give to the CPA). A law had changed which required me to do a minor
database modification here. I struggled for almost an hour to do
something rather simple.


> Now that I here one more question: Why do I struggle so much to have
> a connection between my wire and my components? one time out of two
> it does not requognize each other... is there a parameter to make
> that more automatique?
>

As Marius hinted you might have veered slightly off the grid. When doing
normal schematic drafting I suggest to keep "stay on grid" turned on and
not set too fine a grid. It should be left at default or at least make
it coarse enough so you can easily see the grid steps when moving a
part, seeing a "ratchet" motion and not a smooth motion. Otherwise it
can become impossible to see when a wire stopped a fraction of a
millimeter from a component pin. That becomes worse the older you get :-)

--
Regards, Joerg

http://www.analogconsultants.com/
Re: Missing components in the library... [message #136712 is a reply to message #136711] Fri, 18 March 2011 18:48 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/18/2011 1:05 PM, Joerg wrote:
> badbad2142 wrote:
>> Thank you Joerg. Quoi comme frommage, un chevre par exemple? le
>> boursin ne me dit rien pour l electronique...
>>
>
> I like both goat cheese and Boursin, even when doing electronic design :-)
>
> You guys live in paradise when it comes to cheese. The Camembert we can
> get in America is a far cry from the cheese I enjoyed in France (where
> you take a bite and your breath stops for a couple of seconds). Luckily
> we can buy Boursin.
>
>
>> I have been able to create my two first items in my library (thanks
>> to kd7vnn
>> http://www.instructables.com/id/How-to-make-a-custom-library-part-in-Eagle- CAD-too/).
>>
>>
>> I undertsand what you say about 50% of the job but when you are just
>> doing it once in a while it is a bruden... but it is ok.
>>
>
> That's the same with all software. I just finished my tax preparation
> (to give to the CPA). A law had changed which required me to do a minor
> database modification here. I struggled for almost an hour to do
> something rather simple.
>
>
>> Now that I here one more question: Why do I struggle so much to have
>> a connection between my wire and my components? one time out of two
>> it does not requognize each other... is there a parameter to make
>> that more automatique?
>>
>
> As Marius hinted you might have veered slightly off the grid. When doing
> normal schematic drafting I suggest to keep "stay on grid" turned on and
> not set too fine a grid. It should be left at default or at least make
> it coarse enough so you can easily see the grid steps when moving a
> part, seeing a "ratchet" motion and not a smooth motion. Otherwise it
> can become impossible to see when a wire stopped a fraction of a
> millimeter from a component pin. That becomes worse the older you get :-)
>
Our standard is to make sure all library pins are on the 0.100 inch
grid, which is also what your grid should be set to in schematic editor.
The board editor grid and the routing grid are totally seperate and can
be set to whatever you want. Note that the default routing grid of 0.050
is very coarse for modern circuits.
Re: Missing components in the library... [message #136724 is a reply to message #136712] Sat, 19 March 2011 10:53 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
Gary Gofstein wrote:
> On 3/18/2011 1:05 PM, Joerg wrote:
>> badbad2142 wrote:

[...]

>>> Now that I here one more question: Why do I struggle so much to have
>>> a connection between my wire and my components? one time out of two
>>> it does not requognize each other... is there a parameter to make
>>> that more automatique?
>>>
>>
>> As Marius hinted you might have veered slightly off the grid. When doing
>> normal schematic drafting I suggest to keep "stay on grid" turned on and
>> not set too fine a grid. It should be left at default or at least make
>> it coarse enough so you can easily see the grid steps when moving a
>> part, seeing a "ratchet" motion and not a smooth motion. Otherwise it
>> can become impossible to see when a wire stopped a fraction of a
>> millimeter from a component pin. That becomes worse the older you get :-)
>>
> Our standard is to make sure all library pins are on the 0.100 inch
> grid, which is also what your grid should be set to in schematic editor.
> The board editor grid and the routing grid are totally seperate and can
> be set to whatever you want. Note that the default routing grid of 0.050
> is very coarse for modern circuits.


Same here, schematics are all 0.1", with very few exceptions. I don't do
layouts myself but guide them a lot. There the grid is nowadays more
like 0.01, sometimes even smaller.

Turning the grid off is only needed when you do fancy artwork with
Eagle. Like birthday banners :-)

--
Regards, Joerg

http://www.analogconsultants.com/
Re: Missing components in the library... [message #136727 is a reply to message #136724] Sat, 19 March 2011 18:44 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Thank you all for your help.

Marius: I will tyr it right away.

Gary: For the grid being french I went for mm whihc is may be not wise with some of the existing components of the library.
My circuits are going to be home made (at least the first few to see if I can do something by myself) so coarse is ok for now. I will remeber it for next time.

Jorge: I have not tried yet and I will.

Joerg: I am sad (but also veyr happy) to say that I am currently living in the US and undertsand perfectly what you mean concerning the cheese!!! Trust me...

:-)
Re: Missing components in the library... [message #136739 is a reply to message #136727] Sun, 20 March 2011 12:43 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
I keep struggling but sure for no reason I must be doing something wrond becasue a component as simple as a resistor gives me issues:
[IMG]http://i203.photobucket.com/albums/aa14/badbad214/Eagle/R1_Position2.jpg[/IMG]

[IMG]http://i203.photobucket.com/albums/aa14/badbad214/Eagle/R1_Position1.jpg[/IMG]
As you can see my resistor (that I picked from the library) is oscillating between two posiitons AROUND the grid... I think that I have the snap on the grid function activated (I did Grid On command but not sure if it is the right one). I tried to move the component using the Alt but it does not stop right on the grid and the connection does not create itself. I did not chage the size of the grid...
?
Re: Missing components in the library... [message #136742 is a reply to message #136739] Sun, 20 March 2011 17:08 Go to previous messageGo to next message
warrenbrayshaw
Messages: 1269
Registered: January 2010
Location: New Zealand
Senior Member
badbad2142 wrote:
> I keep struggling but sure for no reason I must be doing something
> wrond becasue a component as simple as a resistor gives me issues:
>
[IMG]http://i203.photobucket.com/albums/aa14/badbad214/Eagle/R1_Position2.jp
g[/IMG]
>
>
[IMG]http://i203.photobucket.com/albums/aa14/badbad214/Eagle/R1_Position1.jp
g[/IMG]
> As you can see my resistor (that I picked from the library) is
> oscillating between two posiitons AROUND the grid... I think that I
> have the snap on the grid function activated (I did Grid On command
> but not sure if it is the right one). I tried to move the component
> using the Alt but it does not stop right on the grid and the
> connection does not create itself. I did not chage the size of the
> grid... ?

Hold the CTL key down when you select the resistor. It will snap the
resistor to your 0.1 grid

HTH
Warren
Re: Missing components in the library... [message #136745 is a reply to message #136742] Sun, 20 March 2011 20:09 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Back on business Thank you Warren.
Re: Missing components in the library... [message #136746 is a reply to message #136745] Sun, 20 March 2011 21:33 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
as an example:
http://i203.photobucket.com/albums/aa14/badbad214/Eagle/legnumber.jpg

on this component from the library how do you know if the pin and gates are numbered as in the datasheet of the component?

AB
Re: Missing components in the library... [message #136750 is a reply to message #136746] Mon, 21 March 2011 05:06 Go to previous messageGo to next message
Richard Hammerl
Messages: 2482
Registered: October 2004
Senior Member
Am 21.03.2011 02:33, schrieb badbad2142:
> as an example:
> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/legnumber.jpg
>
> on this component from the library how do you know if the pin and gates are numbered as in the datasheet of the component?
>
> AB
>


SET PAD ON or OFF
or go to Options/Set/Misc menu and look for "Display pad names".


--
Mit freundlichen Gruessen / Best regards
Richard Hammerl
CadSoft Support -- <private_email>
FAQ: http://www.cadsoft.de/faq.htm
Re: Missing components in the library... [message #136756 is a reply to message #136750] Mon, 21 March 2011 10:57 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Thank you Richard.
Re: Missing components in the library... [message #136768 is a reply to message #136727] Mon, 21 March 2011 14:20 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
badbad2142 wrote:

[...]

>
> Joerg: I am sad (but also veyr happy) to say that I am currently
> living in the US and undertsand perfectly what you mean concerning
> the cheese!!! Trust me...
>
> :-)
>

Costco often carries Boursin, the three-packs with different flavors.
Occasionally they have a Camembert that's actually fairly good if left
outside the fridge for an hour or so. But not very often :-(

World Market and Trader Joe's are also good places to hunt for tasty
European cheeses, if you have those store in your area. Bread is another
story and we sometimes bake our own, in the barbecue.

--
Regards, Joerg

http://www.analogconsultants.com/
Re: Missing components in the library... [message #136775 is a reply to message #136768] Mon, 21 March 2011 16:02 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/21/2011 11:20 AM, Joerg wrote:
> badbad2142 wrote:
>
> [...]
>
>>
>> Joerg: I am sad (but also veyr happy) to say that I am currently
>> living in the US and undertsand perfectly what you mean concerning
>> the cheese!!! Trust me...
>>
>> :-)
>>
>
> Costco often carries Boursin, the three-packs with different flavors.
> Occasionally they have a Camembert that's actually fairly good if left
> outside the fridge for an hour or so. But not very often :-(
>
> World Market and Trader Joe's are also good places to hunt for tasty
> European cheeses, if you have those store in your area. Bread is another
> story and we sometimes bake our own, in the barbecue.
>
always bake my own.

@OP: lay out your board in mm if you wish ( I often do ),
but keep schematics at 0.100".
Re: Missing components in the library... [message #136778 is a reply to message #136775] Mon, 21 March 2011 17:15 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
Gary Gofstein wrote:
> On 3/21/2011 11:20 AM, Joerg wrote:
>> badbad2142 wrote:
>>
>> [...]
>>
>>>
>>> Joerg: I am sad (but also veyr happy) to say that I am currently
>>> living in the US and undertsand perfectly what you mean concerning
>>> the cheese!!! Trust me...
>>>
>>> :-)
>>>
>>
>> Costco often carries Boursin, the three-packs with different flavors.
>> Occasionally they have a Camembert that's actually fairly good if left
>> outside the fridge for an hour or so. But not very often :-(
>>
>> World Market and Trader Joe's are also good places to hunt for tasty
>> European cheeses, if you have those store in your area. Bread is another
>> story and we sometimes bake our own, in the barbecue.
>>
> always bake my own.
>

Very good. We also bake our pizza in the barbecue, over charcoal. Most
of the time coals from real firewood. Even when it hails.


> @OP: lay out your board in mm if you wish ( I often do ),
> but keep schematics at 0.100".


Yes, except for library symbols. In order for the more complicated ones
to look good it is important to switch the grid down to 0.025" or so.
But make sure outlines and pins are on the 0.100" grid.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
Re: Missing components in the library... [message #136779 is a reply to message #136775] Mon, 21 March 2011 17:20 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
I also bake my own but never been able to create a real baguette... here in AR we have the Boulevard Bread which is the closest from the real thing and for the cheese the place is called "the French market" :-) the taste are Ok but concerning the prices it is another story.

In my Board when I have launched a "Autorouter SetUp" and do not like the result how do I come back to the previous state? (undo doesn't do anything).
Re: Missing components in the library... [message #136780 is a reply to message #136779] Mon, 21 March 2011 18:21 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/21/2011 2:20 PM, badbad2142 wrote:
> I also bake my own but never been able to create a real baguette... here in AR we have the Boulevard Bread which is the closest from the real thing and for the cheese the place is called "the French market" :-) the taste are Ok but concerning the prices it is another story.
>
> In my Board when I have launched a "Autorouter SetUp" and do not like the result how do I come back to the previous state? (undo doesn't do anything).
>
Use the ripup command ( type HELP RIPUP), it can also be restricted to
certain nets, or all nets, or all nets except certain nets.

I recommend you do your critical routes manually first, save it, and
then autoroute the rest, especially if you have lots of manual routes,
then it is easy to start over.
Re: Missing components in the library... [message #136782 is a reply to message #136780] Mon, 21 March 2011 21:51 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Works perfectly for me thank you Gary
Re: Missing components in the library... [message #136805 is a reply to message #136782] Tue, 22 March 2011 10:57 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Next question:
When I am doing a polygone it does not go around the legs of my components but let behind some incovered spots (I understand that a picture would be clearer: http://s203.photobucket.com/albums/aa14/badbad214/Eagle/ ) what is the parameter that I shall change?
AW: Missing components in the library... [message #136807 is a reply to message #136805] Tue, 22 March 2011 13:19 Go to previous messageGo to next message
jrafetseder
Messages: 688
Registered: October 2004
Senior Member
badbad is your real name???
Help Polygon is your friend, see the paragraph "Thermals"& the others to
make your polygon best fit
r
Re: Missing components in the library... [message #136811 is a reply to message #136807] Tue, 22 March 2011 14:36 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Noep but the funny part is when I am connected it is displayed my real neame when I am not only my pseudo...

Thank you for the hint on thermal.

AB
Re: Missing components in the library... [message #136820 is a reply to message #136805] Tue, 22 March 2011 16:41 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/22/2011 7:57 AM, badbad2142 wrote:
> Next question:
> When I am doing a polygone it does not go around the legs of my components but let behind some incovered spots (I understand that a picture would be clearer: http://s203.photobucket.com/albums/aa14/badbad214/Eagle/ ) what is the parameter that I shall change?
>
It will be hard to solder it without those "thermals" especially if the
plane is any significant size. It will just act like an infinite heat sink.

This is more an issue for mass produced boards, but it is possible to
produce a board which is not hand solderable as well, I've worked on
some that simply have too much heatsinking to the ground plane to
desolder a component. That's when you get out the hot air tool or put it
in the oven and hope it survives!
Re: Missing components in the library... [message #136846 is a reply to message #136820] Wed, 23 March 2011 15:32 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
oh... Thank you Gary for the explanation... I will see if what I have modified in GIMP is acceptable then...
Re: Missing components in the library... [message #136901 is a reply to message #136846] Fri, 25 March 2011 17:37 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
I was wanting to thank you all for your help. here is the first board I "designed" with your help:
http://i203.photobucket.com/albums/aa14/badbad214/Eagle/Eagle_Board1.jpg

AB
Re: Missing components in the library... [message #136902 is a reply to message #136901] Fri, 25 March 2011 17:57 Go to previous messageGo to next message
Paul Romanyszyn
Messages: 792
Registered: December 2004
Senior Member
On 03/25/2011 05:37 PM, badbad2142 wrote:
> I was wanting to thank you all for your help. here is the first board I "designed" with your help:
> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/Eagle_Board1.jpg
>
> AB
>
Are you doing single sided PCB using two jumper in red. If not your
traces are shorting to the through hole pads.
Paul R.
Re: Missing components in the library... [message #136903 is a reply to message #136901] Fri, 25 March 2011 18:38 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/25/2011 2:37 PM, badbad2142 wrote:
> I was wanting to thank you all for your help. here is the first board I "designed" with your help:
> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/Eagle_Board1.jpg
>
> AB
>
You will have a problem manufacturing this board because the silk screen
text is not in vector font. You need to change them all to vector and
move them if necessary. Otherwise, they will look very different when
you make the gerbers.

have you run a DRC? because it looks like you have shorting pads to top
layer.

the position of some of your capacitors looks wrong, especially if you
really use 74AC series chips, these have a real tendancy to instability
if not bypassed properly with 0.1ufd ceramics /right at the pins/.
Putting 1uF electrolytics an inch or so away is not likely to work
consistently. Best solution, use HC series if at all possible and bypass
with 0.1 ceramic right at the chip as well.

I'm pretty sure you could lay this out without using any jumpers or top
layer.
Re: Missing components in the library... [message #136904 is a reply to message #136901] Fri, 25 March 2011 18:53 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/25/2011 2:37 PM, badbad2142 wrote:
> I was wanting to thank you all for your help. here is the first board I "designed" with your help:
> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/Eagle_Board1.jpg
>
> AB
>
Also, every input to a CMOS IC should be tied to a definite digital
logic level, such as ground or Vdd. don't leave inputs open or your
circuit will tend to work intermittently. In your case, because you have
schmidt trigger inputs, you might get away with it, but you should set
them to level. unused outputs don't have to go anywhere.
Re: Missing components in the library... [message #136908 is a reply to message #136901] Sat, 26 March 2011 16:50 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
badbad2142 wrote:
> I was wanting to thank you all for your help. here is the first board I "designed" with your help:
> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/Eagle_Board1.jpg
>
> AB
>


Ok, you got a lot of good hints already. One more: A 74AC14 is a very
fast chip. It needs a 0.1uF ceramic bypass capacitor right next to it,
and ideally some sort of ground plane. C2 is electrolytic, can't do it
alone, and is too far away anyhow. If you don't do that the 74AC14 might
decide to do a tanrantella dance when some input switches :-)

The same may be true for the transistors but from the layout it's tough
to see what they do.

--
Regards, Joerg

http://www.analogconsultants.com/
Re: Missing components in the library... [message #137111 is a reply to message #136908] Thu, 31 March 2011 11:42 Go to previous messageGo to next message
badbad2142
Messages: 13
Registered: March 2011
Junior Member
Thank you all for your inputs. To be honest I was long to reply because I did not realize that a third page was there.

Paul: Yes I have two jumpers.
Gary: I hope you are right and that I will get away with it this time. I will keep your advise in mind for my next design (cmos legs inputs to be connected) . I will replace the capacitors by ceramic. My board being home made (and it is the first one that I do) I am only one side (it looks like this: http://i203.photobucket.com/albums/aa14/badbad214/Eagle/IMG_9090.jpg it has not been perfectly clean yet). It is also the reason why I did not care about the text (for this time at least).
Joerg: I will try to improve with the ceramic capacitors but if it does not do it I will have to try again...

Thank you all again!
Re: Missing components in the library... [message #137126 is a reply to message #137111] Thu, 31 March 2011 16:29 Go to previous messageGo to next message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/31/2011 8:42 AM, badbad2142 wrote:
> Thank you all for your inputs. To be honest I was long to reply because I did not realize that a third page was there.
>
> Paul: Yes I have two jumpers.
> Gary: I hope you are right and that I will get away with it this time. I will keep your advise in mind for my next design (cmos legs inputs to be connected) . I will replace the capacitors by ceramic. My board being home made (and it is the first one that I do) I am only one side (it looks like this: http://i203.photobucket.com/albums/aa14/badbad214/Eagle/IMG_9090.jpg it has not been perfectly clean yet). It is also the reason why I did not care about the text (for this time at least).
> Joerg: I will try to improve with the ceramic capacitors but if it does not do it I will have to try again...
>
> Thank you all again!
>
You don't replace the caps with ceramic, you keep them, and then add
ceramic /as close to the chip as possible/ in parallel with the
electrolytics. If you use 74AC*, I doubt it will work, 74HC* chips,
maybe it works... never use 74AC unless you really know what you're
doing. If you already made the board, I would just solder a 0.1 ceramic
between pins 14 and 7 on the bottom of the board, that should do it.
Re: Missing components in the library... [message #137132 is a reply to message #137126] Thu, 31 March 2011 20:49 Go to previous messageGo to next message
Joerg
Messages: 672
Registered: October 2004
Senior Member
Gary Gofstein wrote:
> On 3/31/2011 8:42 AM, badbad2142 wrote:
>> Thank you all for your inputs. To be honest I was long to reply
>> because I did not realize that a third page was there.
>>
>> Paul: Yes I have two jumpers.
>> Gary: I hope you are right and that I will get away with it this time.
>> I will keep your advise in mind for my next design (cmos legs inputs
>> to be connected) . I will replace the capacitors by ceramic. My board
>> being home made (and it is the first one that I do) I am only one side
>> (it looks like this:
>> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/IMG_9090.jpg
>> it has not been perfectly clean yet). It is also the reason why I did
>> not care about the text (for this time at least).
>> Joerg: I will try to improve with the ceramic capacitors but if it
>> does not do it I will have to try again...
>>
>> Thank you all again!
>>
> You don't replace the caps with ceramic, you keep them, and then add
> ceramic /as close to the chip as possible/ in parallel with the
> electrolytics. ...


Yup, that's how it's done.


> ... If you use 74AC*, I doubt it will work, 74HC* chips,
> maybe it works... never use 74AC unless you really know what you're
> doing. If you already made the board, I would just solder a 0.1 ceramic
> between pins 14 and 7 on the bottom of the board, that should do it.


On 74HC leaving inputs open usually doesn't work either. They'll waft
around, getting into the linear range around VCC/2, something starts
oscillating and the guy next door gets mad because his FM radio always
quits when the circuit is running :-)

A 74AC with open inputs is a loose cannon. Sometimes oscillation at a
high enough frequency can cause a chip to self-destruct. Since the
74AC14 contains Schmitt inputs it might not self-destruct if replaced
with a 74HC14. Maybe, but I wouldn't hold my breath.

--
Regards, Joerg

http://www.analogconsultants.com/
Re: Missing components in the library... [message #137133 is a reply to message #137132] Thu, 31 March 2011 21:03 Go to previous message
Gary Gofstein
Messages: 501
Registered: May 2008
Senior Member
On 3/31/2011 5:49 PM, Joerg wrote:
> Gary Gofstein wrote:
>> On 3/31/2011 8:42 AM, badbad2142 wrote:
>>> Thank you all for your inputs. To be honest I was long to reply
>>> because I did not realize that a third page was there.
>>>
>>> Paul: Yes I have two jumpers.
>>> Gary: I hope you are right and that I will get away with it this time.
>>> I will keep your advise in mind for my next design (cmos legs inputs
>>> to be connected) . I will replace the capacitors by ceramic. My board
>>> being home made (and it is the first one that I do) I am only one side
>>> (it looks like this:
>>> http://i203.photobucket.com/albums/aa14/badbad214/Eagle/IMG_9090.jpg
>>> it has not been perfectly clean yet). It is also the reason why I did
>>> not care about the text (for this time at least).
>>> Joerg: I will try to improve with the ceramic capacitors but if it
>>> does not do it I will have to try again...
>>>
>>> Thank you all again!
>>>
>> You don't replace the caps with ceramic, you keep them, and then add
>> ceramic /as close to the chip as possible/ in parallel with the
>> electrolytics. ...
>
>
> Yup, that's how it's done.
>
>
>> ... If you use 74AC*, I doubt it will work, 74HC* chips,
>> maybe it works... never use 74AC unless you really know what you're
>> doing. If you already made the board, I would just solder a 0.1 ceramic
>> between pins 14 and 7 on the bottom of the board, that should do it.
>
>
> On 74HC leaving inputs open usually doesn't work either. They'll waft
> around, getting into the linear range around VCC/2, something starts
> oscillating and the guy next door gets mad because his FM radio always
> quits when the circuit is running :-)
>
> A 74AC with open inputs is a loose cannon. Sometimes oscillation at a
> high enough frequency can cause a chip to self-destruct. Since the
> 74AC14 contains Schmitt inputs it might not self-destruct if replaced
> with a 74HC14. Maybe, but I wouldn't hold my breath.
>
100% agreement, I was trying to say that AC without close bypassing will
go crazy for sure while HC might tolerate it. Any open inputs will cause
erratic circuit function and I see this mistake a lot on circuits on the
internet. Usually with comments that some builders "couldn't get it to
work." Of course...
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