Answers Database

M1/XACT: How do I add comments to my constraints file?


Record #2138

Product Family:  Software

Product Line:  FPGA Core

Problem Title:
M1/XACT: How do I add comments to my constraints file?


Problem Description:
Keywords: constraint, M1, XACT, PCF, UCF ,.CST, comment, remark

Urgency: Standard

General Description: What is the comment character for a constraints file?


Solution 1:

For the M1 .UCF, .NCF, and .PCF files, as well as XACT 5.x/6.x CST files, the co
mment character is "#".


# This line is a comment in a .cst file
notplace instance * :p6;

# This line is a comment in a .ucf file
net $1I6/mynet TNM=foo_bar



End of Record #2138