User Guide

Appendix

Listsusefuladditionalinformationandexplainssomeerrormessages

EAGLEpromptsincertainsituations.

Foraquick,hands-onintroduction,refertotheEAGLETutorial.

Pleasereadthetutorialforabetterunderstandingbeforeworkingwith

themanual.

Anybodywhohasalreadybeenworkingwithapriorversionof

EAGLEisadvisedtoreadthefile UPDATE underLinuxor

UPDATE.TXT underWindows.Itcontainsadescriptionofallthedif

ferencesfromearlierversions.Thisfileislocatedinthe eagle/doc direc

tory.PleasereaditbeforeyoustartworkingwithEAGLE4.

Informationthatwasnotavailableorthathasbeenchangedsinceprint

ingthismanualisalsodescribedin UPDATE or UPDATE.TXT,or,if

itexists,ina README file.

Detailed information, especially about the EAGLE command language

and the EAGLE User Language, is available on the help pages. You can

reach a basic understanding very quickly by using this manual, and you

can use the convenient search features of the help function to quickly

locatetheanswerstoparticularquestions.

1.2 TechnicalTerms

In this manual, in the help function, and in EAGLE itself we frequently

usesometechnicaltermsthatshouldbeexplainedhereinafewwords.

Airwire: Unrouted connection on a board, displayed in the unrouted

layer(=rubberband).

Annulus Symbol: An isolation ring that will be drawn in a supply layer

orinacopper-filledarea.

Design Rule Check (DRC): EAGLE can identify the violation of cer

tain Design Rules (e.g. if two different tracks overlap or are too close)

withtheDRC.

Device: A fully defined element in a library. Consists of a package and a

symbol.

Device Set: Consists of devices that use the same symbols for the sche

maticbuthavedifferentpackagevariantsortechnologoies.

Drill:Plated-throughdrillinginthelayout(inpadsandvias)

EAGLEManual