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Customize the FFT algorithm instructions of Nios processor

  • 2013-09-19
  • 168KB
  • Points it Requires : 2

This paper deeply studies the software and hardware interface of Nios custom instructions, implements a high-speed complex FFT algorithm with a transform length of 1024 points based on Altera\'s IP core FFT V2.2.0, and proposes a method to customize user FFT algorithm instructions in Nios embedded systems. The study shows that adding FFT algorithms to the Nios embedded processor instruction set can help the system complete complex data processing tasks and enhance the real-time processing capabilities of the Nios system. Keywords: IP Core;FFT;Custom Instructions;Nios Embedded Processor Abstract: The paper researched the software and hardware interface techniques of custom instructions for Nios embedded processor, implemented a 1024 dot plural FFT arithmeticbased 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 toimplement 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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