Answers Database
2.1i: XACT Command "lca2xnf -s" is no longer available, but can be replaced by "speedprint -s" command.
Record #6173
Product Family: Software
Product Line: XACT FPGA
Product Part: lca2xnf
Product Version: 5.2.1
Problem Title:
2.1i: XACT Command "lca2xnf -s" is no longer available, but can be replaced by "speedprint
-s" command.
Problem Description:
urgency: standard
general description:
In the XACT tools there was a command "lca2xnf -s". This command
writes a file containing the timing parameters for a specific design.
This command is no longer available for M1.5 and later versions.
Solution 1:
In version 1.5 and later, there is an executable called "speedprint"
which prints the timing parameters found in a specific speed file. It
is independent of the design. This design independence is the main
difference between the "speedprint" and "lca2xnf -s" commands.
The command that should be used in current software versions is:
speedprint xc4005xl -s 09
Be aware that the one difference between "lca2xnf -s" and "Speedprint"
is that "Lca2xnf -s" tried to create a datasheet for the speed grade
used by a design. Speedprint focuses on printing the delays in the
speedfile and does not present them as a datasheet. The
"lca2xnf -s" command did some rounding and grouping of
numbers in the speedfile before printing a datasheet. "Speedprint"
does not do this. "Speedprint" accurately reports exactly what
numbers are going to be used by PAR and TRCE. It will not
exactly match the datasheet.
End of Record #6173 - Last Modified: 10/20/99 14:37 |
