Qrouter Detail Routing Tool Version 1.2 Command Reference

read_def


Read a DEF file.

Usage:

read_def filename

where filename is the name of a DEF format file containing the description of a standard cell layout, including information on routing tracks, cells and their placement, pins, and nets (without placement information).

Summary:

The read_def command reads information from a DEF format file that contains a description of the layout and netlist to be routed.

The read_def command must be issued once for qrouter to begin routing. If read_def is issued again, qrouter will perform a complete reinitialization, and may accept an entirely new layout to route.

The read_def command can only be given after qrouter has read information about the technology, either by reading the configuration file, or by reading a LEF file with the technology information.

Implementation Notes:

read_def is implemented as a built-in command in qrouter.

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Last updated: November 17, 2013 at 9:26pm