描述

General Description:

When I run 5.1i Timing Analyzer in stand-alone mode on Virtex-II designs, the following messages appear:

"Voltage prorating is not available for this device and speed grade."

"Temperature prorating is not available for this device and speed grade."

Once I open Timing Analyzer, these options are grayed out.

解决方案

Virtex-II does support voltage and temperature prorating in ISE 6.1i.