无法签出securezip许可证功能消息

大家好，
我正在尝试模拟其中包含ddr的spartan6设计。
该设计利用secureip库中的加密内存控制器块。
在这种特定情况下，“secureip.MCB_WRAP”和“secureip.B_MCB”。
所有模块编译和加载都没有问题。
然而，在模拟开始之前，modelsim给出了以下警告
**警告：无法检出secureip许可证功能以加载安全IP模型。
现在尝试签出Verilog许可证。
上面的警告会重复多次，然后模拟开始。
然而，DDR永远不会出现初始化。
我知道DDR没有问题，因为我的朋友用相同的代码成功地模拟了设计。
我使用ModelSIM PE 6.5d（带有MIXED许可证）和ISE 12.2
在模拟之前，我使用了ISE的“Simulation Library Compilation Wizard”，并为Modelsim PE 6.5d编译了必要的Xilinx特定库。
可能是什么问题？
如果你能指导我，我会很高兴的
感谢您的时间
瑞法特
ps：如果需要，我可以附加ISE库向导的日志和modelsim编译输出



以下为原文

Hello all,

I am trying to simulate a spartan6 design that has ddr in it. The design makes use of the encrypted memory controller block in secureip libraries. In this specific case, "secureip.MCB_WRAP" and "secureip.B_MCB". All the modules compile and load without problems. However just before the simulation begins, modelsim gives the below warning

** Warning: Unable to checkout secureip license feature for loading Secure IP model.  Now attempting to checkout a Verilog license.  

Above warning repeats itself for many times and then the simulation starts. Yet  DDR never comes out of initialization.  I know that there is no problem with DDR because friends of mine with the same code successfully simulated the design.

I use ModelSIM PE 6.5d ( with MIXED license) and ISE 12.2
Before simulation, I used the "Simulation Library Compilation Wizard" of ISE and have the necessary Xilinx specific libraries compiled for Modelsim PE 6.5d

What can be the problem? I would be most happy if you can guide me

Thank you for your time
Rifat

ps: I can attach the logs of the ISE library wizard and modelsim compilation output if there is a need