AR# 45646

描述

解决方案

This issue only affects users who use IBERT under the following conditions:

• Using 13.1, 13.2, 13.3, or 13.4versions of ISE designtools.
• Targeting a Kintex-7 or Virtex-7 device.
• Using a 32-bit DATA_WIDTH when generating the IBERT core

In software versions 13.4 and earlier, the timing constraints are not written correctly for the 32-bit version of the core, which causes it to miss timing during implementation.This causes linking problems with the 32-bit data width IBERT designs.

To work around this issue, do not select 32-bit data widths when generating the core; use a 40-bit data width instead. This issue will be addressed in ISE Design Suite 14.1.