AR# 8818

3.1i XST - WARNING: (DM__0025). Unknown property "maxfanout". Ignoring.

描述

Keywords: XST, attribute, maxfanout, max_fanout, DM__0025, warning

Urgency: Standard

General Description:
When using the "maxfanout" attribute in a synthesis constraint file, I receive the following warning:

WARNING: (DM__0025). Unknown property "maxfanout". Ignoring.

解决方案

This is an inconsistency error. The attribute in ISE 3.1i is "max_fanout."

However, if you are running XST in command-line mode, then the attribute is "maxfanout."

Furthermore, if you wish to put this constraint in the HDL code, the constraint is "max_fanout."

NOTE: This problem is fixed in the 4.1i software release.
AR# 8818
日期 08/20/2002
状态 Archive
Type 综合文章