ConnectSubnets

Created: July 24, 2015 | Updated: April 11, 2017 | Applies to versions: 15.1, 16.0 and 16.1

The following pre-packaged resources, derived from this base command, are available:

Applied Parameters: None

Summary

This command is used to automatically add subnet connectors to complete the short routing segments (those tracks that still have connection lines in between) on the current PCB document - eliminating the need for the manual completion of such segments. An added subnet jumper completes the route between two tracks that have the same net property.

Access

This command is accessed from the PCB Editor by choosing the Auto Route » Add Subnet Jumpers command, from the main menus.

Use

After launching the command, the Subnet Connector dialog will appear, and you will be prompted to enter a value for the maximum subnet separation (100mil is the default value) of incomplete routing segments. After clicking OK, the software will detect any direct (horizontal, vertical or diagonal) connection lines shorter than the specified separation - track segments of the correct width will be automatically added to complete a route.

Tips

A group of tracks can be broken (using slicing for example) to create short horizontal and vertical gaps. These gaps allow the subsections of nets to be re-assigned using the pin/net swapping system. Partially routed tracks with many tangled connection lines are typical in an FPGA design.

Remove Subnet Jumpers

Applied Parameters: Action=RemoveSubnetJumpers

Summary

This command is used to remove existing subnet connectors from the current PCB document.

Access

This command is accessed from the PCB Editor by choosing the Auto Route » Remove Subnet Jumpers command, from the main menus.

Use

After launching the command, the existing subnet jumpers (short connections between routed segments) are removed from the PCB.

Tips

Use the Add Subnet Jumpers command to create new jumpers for the PCB.