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自定制Nios处理器的FFT算法指令
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2009-06-20
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本文深入研究了Nios 自定制指令的软硬件接口，基于Altera 的IP 核FFT V2.2.0实现了变换长度为1024 点的高速复数FFT 算法，提出了一种在Nios 嵌入式系统中定制用户FFT 算法指令的方法。研究表明，将FFT 算法加入到Nios 嵌入式处理器指令集中，可以帮助系统完成复杂的数据处理任务，增强Nios 系统的实时处理能力。
关键词：知识产权核；快速傅立叶变换；自定制指令；Nios 嵌入式处理器
Abstract: The paper researched the software and hardware interface techniques of custom
instructions for Nios embedded processor, implemented a 1024 dot plural FFT arithmetic
based on IP core FFT V2.2.0 of Altera corporation, proposed a method of custom FFT
instructions for Nios. Research result shows, system designer can use custom instructions to
implement complex data processing tasks by adding FFT instructions to Nios instructions set,
enhanced the real-time processing ability of system.
Keywords: IP Core；FFT；Custom Instructions；Nios Embedded Processor
关键词：知识产权核；快速傅立叶变换；自定制指令；Nios 嵌入式处理器
Abstract: The paper researched the software and hardware interface techniques of custom
instructions for Nios embedded processor, implemented a 1024 dot plural FFT arithmetic
based on IP core FFT V2.2.0 of Altera corporation, proposed a method of custom FFT
instructions for Nios. Research result shows, system designer can use custom instructions to
implement complex data processing tasks by adding FFT instructions to Nios instructions set,
enhanced the real-time processing ability of system.
Keywords: IP Core；FFT；Custom Instructions；Nios Embedded Processor
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