User Guide

SETREPLACE_SAMECOORDS;
The first mode permits packages whose pad or SMD names are identical
tobeexchanged.Theconnectingareascanhaveanyposition.
In the second case (replace_same coords) the pads or SMDs in the new
package must be located at the same coordinates (relative to the origin).
Thenamesmaydiffer.
The text for the name and value of a device is only exchanged if they
havenotbeenseparatedfromthedevicewithSMASH.
The new package can come from a different library, and can contain ad
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ditional pads and SMDs. Connections on the old package that were con
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nected to signals must exist correspondingly in the new package. The
new package can even have fewer connections, provided that this condi
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tionissatisfied.
Changingthe Technology
It is possible to change the technology of a device in the layout at any
time , provided there are various technologies defined in the library. Use
the CHANGE command with the Technology option. This procedure is
identical to the one described before in which package forms are ex
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changedusingCHANGE.
Define ForbiddenAreas
Areas in the form of rectangles, polygons or circles in layers 41, tRe
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strict, 42, bRestrict, and 43, vRestrict, are forbidden for the Autorouter
(see RECT, POLYGON, CIRCLE). No tracks may be drawn in the top
or bottom layers inside these areas. Through-plated holes may not be
locatedinavRestrictregion.TheseregionsareexaminedbytheDRC.
Routing ¾ PlacingTracksManually
The ROUTE command allows the airwires to be converted into tracks.
A click on the center mouse button while a track is being laid allows a
change of layer. A via is placed automatically. Clicking with the right
mouse button changes the way in which the track is attached to the
mouse and how it is laid (SET command, Wire_Bend parameter).
Among them are two modi which allow to use a wire as a 90-degree or as
afree-definablearc.
The signal's name and net class will be displayed in the status bar, as far
as the User guidance has been deactivated in the menu Options/User
Interface. When a signal line has been completely laid, EAGLE confirms
thatthereisacorrectconnectionwithashortbeepasitisplaced.
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FromSchematictoFinishedBoard