UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 6383

4.1i Constraints Editor - The definition "TIMESPEC TSxx = FROM(abc) TO(xyz)" generates the warning: "Unable to create FROM TO with tsxx."

説明

General Description:

The following timespec definition is not understood by Constraints Editor:

timespec ts05 = from pads(pclk) to ffs = 6 ns;

The following warning is generated:

WARNING: Unable to create FROM TO with ts05.

ソリューション

The warning can either be ignored, or you can modify the UCF file to include the timegrp, and then the timespec.

For example:

timegrp pad_pclk = pads(pclk);

timespec ts05 = from pad_pclk to ffs = 6ns;

This is fixed in the 4.1i software release.

AR# 6383
日付 01/18/2010
ステータス アーカイブ
種類 一般
このページをブックマークに追加