Choose Drawing Layer
The LAYER command with one parameter is used to change the current layer, i.e. the layer onto which wires, circles etc. will be drawn. If LAYER is selected from the menu, a popup menu will appear in which you may change to the desired layer. If entered from the command line, 'layer_number' may be the number of any valid layer, and 'layer_name' may be the name of a layer as displayed in the popup menu.
Certain layers are not available in all modes.
Define Layers
The LAYER command with two parameters is used to define a new layer
or to rename an existing one.
If you type in at the command prompt e.g.
LAYER 101 SAMPLE;
you define a new layer with layer number 101 and layer name SAMPLE.
If a package contains layers not yet specified in the board, these layers are added to the board as soon as you place the package into the board (ADD or REPLACE).
The predefined layers have a special function. You can change their names, but their functions (related with their number) remain the same.
If you define your own layers, you should use only numbers greater than 100. Numbers below may be assigned for special purposes in later EAGLE versions.
Delete Layers
The LAYER command with the minus sign and a layer_number deletes the
layer with the specified number, e.g.
LAYER -103;
deletes the layer number 103. Layers to be deleted must be empty.
If this is not the case, the program generates the error message
"layer is not empty: #"
where "#" represents the layer number.
The predefined standard layers cannot be deleted.
Supply Layers
Layers 2...15 are treated by the Autorouter as supply layers, provided their name starts with the $ character and there is a signal with an identical name but without the leading $.
Predefined EAGLE Layers
Layout
1 Top | Tracks, top side |
2 Route2 | Inner layer (signal or supply) |
3 Route3 | Inner layer (signal or supply) |
4 Route4 | Inner layer (signal or supply) |
5 Route5 | Inner layer (signal or supply) |
6 Route6 | Inner layer (signal or supply) |
7 Route7 | Inner layer (signal or supply) |
8 Route8 | Inner layer (signal or supply) |
9 Route9 | Inner layer (signal or supply) |
10 Route10 | Inner layer (signal or supply) |
11 Route11 | Inner layer (signal or supply) |
12 Route12 | Inner layer (signal or supply) |
13 Route13 | Inner layer (signal or supply) |
14 Route14 | Inner layer (signal or supply) |
15 Route15 | Inner layer (signal or supply) |
16 Bottom | Tracks, bottom side |
17 Pads | Pads (through-hole) |
18 Vias | Vias (through-hole) |
19 Unrouted | Airwires (rubberbands) |
20 Dimension | Board outlines (circles for holes) |
21 tPlace | Silk screen, top side |
22 bPlace | Silk screen, bottom side |
23 tOrigins | Origins, top side |
24 bOrigins | Origins, bottom side |
25 tNames | Service print, top side |
26 bNames | Service print, bottom side |
27 tValues | Component VALUE, top side |
28 bValues | Component VALUE, bottom side |
29 tStop | Solder stop mask, top side |
30 bStop | Solder stop mask, bottom side |
31 tCream | Solder cream, top side |
32 bCream | Solder cream, bottom side |
33 tFinish | Finish, top side |
34 bFinish | Finish, bottom side |
35 tGlue | Glue mask, top side |
36 bGlue | Glue mask, bottom side |
37 tTest | Test and adjustment inf., top side |
38 bTest | Test and adjustment inf. bottom side |
39 tKeepout | Nogo areas for components, top side |
40 bKeepout | Nogo areas for components, bottom side |
41 tRestrict | Nogo areas for tracks, top side |
42 bRestrict | Nogo areas for tracks, bottom side |
43 vRestrict | Nogo areas for via-holes |
44 Drills | Conducting through-holes |
45 Holes | Non-conducting holes |
46 Milling | Milling |
47 Measures | Measures |
48 Document | General documentation |
49 Reference | Reference marks |
51 tDocu | Part documentation, top side |
52 bDocu | Part documentation, bottom side |
Schematic
91 Nets | Nets |
92 Busses | Buses |
93 Pins | Connection points for component symbols |
with additional information | |
94 Symbols | Shapes of component symbols |
95 Names | Names of component symbols |
96 Values | Values/component types |
Index | Copyright © 1999 CadSoft Computer GmbH |