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362 www.xilinx.com Development System Reference Guide
Chapter 23: XFLOW
R
–norun (Creates a Script File Only)
By default, XFLOW runs the programs enabled in the flow file. Use the –norun option if
you do not want to run the programs but instead want to create a script file (SCR, BAT, or
TCL). XFLOW copies the appropriate flow and option files to your working directory and
creates a script file based on these files. This is useful if you want to check the programs
and options listed in the script file before executing them.
Following is an example:
xflow -implement balanced.opt -norun testclk.edf
In this example, XFLOW copies the balanced.opt and fpga.flw files to the current directory
and creates the following script file:
###########################################
# Script file to run the flow
#
###########################################
#
# Command line for ngdbuild
#
ngdbuild -p xc2v250fg256-5 -nt timestamp /home/
xflow_test/testclk.edf testclk.ngd
#
# Command line for map
#
map -o testclk_map.ncd testclk.ngd testclk.pcf
#
# Command line for par
#
par -w -ol 2 -d 0 testclk_map.ncd testclk.ncd
testclk.pcf
#
# Command line for post_par_trce
#
trce -e 3 -o testclk.twr testclk.ncd testclk.pcf
–o (Change Output File Name)
–o output_filename
This option allows you to change the output file base name. If you do not specify this
option, the output file name has the base name as the input file in most cases.
The following example shows how to use the –o option to change the base name of output
files from “testclk” to “newname”:
xflow -implement balanced.opt
-o newname testclk.edf