Filter
Top Products
Development System Reference Guide www.xilinx.com 167
PAR Options
R
–nopad Suppresses the creation of the
PAD files in all three formats
N/A Generate all
PAD files
–p Do not run the Placer N/A Run Placement
–power Power Aware PAR N/A Off
–r Do not run the Router N/A Run Router
–ub Use bonded IOB sites for
unbonded IOBs
N/A Do not use
bonded IOB
sites
–w existing_file Overwrite existing output files
that have the same name and
path
N/A Do not
overwrite
–x Ignore any timing constraints
provided and generate new
timing constraints on all internal
clocks. Adjust these constraints
while PAR is running to focus on
either performance or run time
based on effort level setting.
N/A Use timing
constraints if
present or use
Automatic
Timespecing if
no timing
constraints are
given
Table 9-2: General Options
Option Function Range Default
Table 9-3: Guide Options
Option Function Range Default
–gf Specifies the name of a NCD
file to be used as the guide file
for PAR
N/A No guide file is
used
–gm Selects the mode of guide to
use during Place and Route
exact,
leverage,
incremental
Exact