Answers Database
XNFPREP 5.2.1: Errors 7822, 7854 from constraints file TIMESPEC
Record #2051
Product Family: Software
Product Line: XACT FPGA
Product Part: xnfprep
Product Version: 5.2.1
Problem Title:
XNFPREP 5.2.1: Errors 7822, 7854 from constraints file TIMESPEC
Problem Description:
Urgency: standard
General Description:
When creating a constraints file with a "timespec" line in it, XNFPREP errors 7822, 7854 may occu
r.
Solution 1:
The diagnosis given in the error message should be checked first. The correct syntax for a TIMESPEC
in a .cst file is:
timespec="TS01=FROM:abc:TO:xyz=40";
This goes on a line by itself in a regular ASCII text file.
If you have the proper syntax, and the TNMs exist (abc, xyz in this example), then the problem may b
e that you have spaces in the TIMESPEC line. The following line may cause problems because of spaces
:
timespec="TS01=FROM: abc :TO:xyz = 40";
Refer to (Xilinx Solution 1331) for more information on TIMESPECs in constraints files.
End of Record #2051 - Last Modified: 03/28/97 12:33 |
