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AR# 21269

7.1i Virtex-II PRO MAP - Directed Routing constraints block trimming of loadless/driverless nets

説明

General Description: 

A functional change was made 7.1i MAP to automatically apply a "KEEP" constraint on nets with Directed Routing constraints, to prevent them from being merged into logic. MAP was also incorrectly changed to also apply an "S" property to these nets, which prevents them from being trimmed when needed. The result is that a design might have loadless or driverless nets, which will lead to a DRC error during BitGen.

ソリューション

This problem has been fixed in the latest 7.1i Service Pack available at: 

http://support.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 7.1i Service Pack 2.

AR# 21269
日付 05/19/2014
ステータス アーカイブ
種類 一般
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