Adding Nets

Nets and buses establish connectivity between pins on the same hierarchical level of a design. However, you do not need to physically connect nets on the schematic. If two dangling nets or buses in a single schematic share the same name, they are considered electrically connected. Labeling unconnected nets with the same name can make schematics easier to read, especially when dealing with common signals like clocks or resets. However, you must keep track of all signal names and make sure they match exactly.

NOTE

Net name association also applies to nets on different schematic sheets at the same level of hierarchy. For example, a net on design.1 named DATA0 connects electrically to another net on design.2 named DATA0.

Use the following procedure to add a net.

1. Select the Add Net command. See the associated icon shown in the next figure.
   
   
   
   
2. Point the cursor at the point where the net starts, a point on a net, bus, or pin.
   
   
3. Click and hold the left mouse button.
   
   
4. Click the right mouse button without releasing the left mouse button each time that you want the net to pivot.
   
   
5. Move the mouse to the desired end point of the net and release the left mouse button. Unlike the start point, you can place the end point somewhere other than on a net, bus, or pin.