User Guide

The Apply button stores the values that are currently set in the layout
file. This means that the values that have so far been chosen are not lost
if you do not immediately start the error check and if you want to leave
theDRCdialogviathe Cancel button.
Changes to various Design Rules are immediately displayed in the Lay
-
outEditorafterclickingon Apply.
The Design Rules can be saved in a special Design Rules file (*.dru)by
theuseofthe Saveas.. button.
To apply a set of Design Rules to a board, you can drag any dru file of
the Design Rules branch of the tree view in the Control Panel into the
LayoutEditorwindow.
The Load.. button allows any particular set of Design Rules to be loaded
fromafile.
Change can be used to alter the descriptive text for the current parame
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ter set. The description usually appears in the DRC dialog (File tab), as
can be seen in the foregoing diagram. Rich Text format can be used with
thetext.Youwillfindnotesonthisinthehelpsystem.
If you open the Design Rules dialog with the menu Edit/Design Rules.. the
Select button will not be shown. In this case OK ends the dialog, in diffe
-
rencetothe DRC call,where OK startstheDesignRuleCheck.
The Design Rules dialog offers a range of different options that can be
selectedthroughthetabs.Theoptionsinclude:
File ManagetheDesignRules
Clearance Distancesbetweenobjectsinthesignallayers
representingsignalsthatmaybedifferentorthesame
Distance Distancesfromtheboardedgeandbetweenholes
Sizes Minimumtrackwidthsandholediameters
Restring Widthoftheremainingringatpadsandvias
Shapes ShapesofpadsandSMDs
Supply Thermalandinsulationsymbolsinsupplylayers
Mask Valuesforsolderstopandsoldercreammasks
Misc Additionalchecks
NotesontheParameters
Most parameters are explained with the help of a graphical display. As
soon as you click with the mouse on a parameter line, the associated dis
-
playappears.
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EAGLEManual