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全定制存储电路的FPGA验证方法研究

Researching on FPGA Verification Method of Full-custom Memory Circuit

【作者】 田峥

【导师】 陈跃跃;

【作者基本信息】 国防科学技术大学 , 软件工程, 2006, 硕士

【摘要】 X微处理器是一款采用全定制方法设计的处理器,内部结构复杂,规模宏大,含有大量的存储电路,因此对其进行验证具有很大的难度。本文研究了X高性能微处理器体系结构与设计特点,并深入研究X微处理器中存储电路的特性与功能,对验证模型建立过程中存储电路映射模型的建立提出了具体的逻辑映射方法。同时,考虑到验证模型的建立是以映射后面积为首要考虑因素,因此通过深入研究FPGA的资源利用、综合工具的综合特性以及Verilog语言的描述风格,对存储电路的逻辑映射方法进行了基于优化面积的改善。本文通过深入研究了模拟验证与形式化验证的理、论以及优缺点,对存储电路映射模型的功能一致性提出了模拟验证与等价性验证相结合的验证方法。这种验证方法相比于单独使用模拟验证或等价性验证,极大的提高了验证效率、缩短了验证时间、保证了功能一致性。本文提出的逻辑映射方法与验证方法在对X微处理器存储电路进行映射模型建立的工作中起到了关键的作用,并对于其它模块的逻辑映射与验证也具有一定的参考意义。本文还通过在具体工程中对辅助工具的使用,提出了一些能够有效提升验证模型建立的速度以及提高验证效率的方法,使得工作效率比传统的工作效率提高了5倍。

【Abstract】 X microprocessor is a complex one which uses full-custom design method,and its scale is very large,including many memory circuits.In order to validate the design,we must apply function verification.This paper is mainly about the logic mapping of memory circuits in the X microprocessor,and verifying the mapping module.Based on the study of the architecture and the design method of X microprocessor,also based on the lucubrating of characteristic and function of the memory circuits,this paper raises a logic mapping method for the memory circuits.And considering the mapped area of the verification model,this paper improves the logic mapping method for optimizing the area through the study of the source of FPGA,the character of synthetic tools and the coding style of Verilog.Based on the study of the theory of the function verification,this paper raises a verification method for the memory circuits.This method is combined the advantage of formal verification and verification through simulation,and it improves the efficiency and makes the verification easier than either of them.Under the instructing of these methods,it’s much easier to build mapping model of memory circuits,and can make sure the design model and mapping model is consistent. And through using the assistant tools in the work,this paper also raise some other mehods to improve the efficiency of verification.

  • 【分类号】TN791
  • 【下载频次】83
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