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AR# 6067

14.x Timing - How do I obtain timing information from new speeds files (Speedprint utility)?

Description

How do I obtain timing information from new speeds files?

解决方案

You can use the Speedprint utility to obtain the latest timing information for a particular speed grade (the information from Speedprint supersedes any information found in the data sheet).

For information on obtaining this data from Timing Analyzer, refer to (Xilinx Answer 4506).

You can invoke Speedprint as follows from the command line or a DOS prompt:

speedprint [-s <sgrade>] [-min] [-t <temp>] [-v <volts>] <device>

-s <sgrade> = Desired speed grade, or default
-min = Report on minimum speed data
-t <temp> = Junction temperature of device
-v <volts> = Supply voltage

For more information, see the "Speedprint" chapter of the Development System Reference Guide at:
http://www.xilinx.com/support/software_manuals.htm

To see the data for an XCS40XL device in a -5 speed grade, enter the following at a DOS/Shell prompt:

speedprint -s 5 xcs40xl

You can look at the various switches (there are four), by entering:

speedprint -h
AR# 6067
创建日期 08/21/2007
Last Updated 02/05/2013
状态 Active
Type 综合文章
Tools
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