Implementation of trigonometric custom functions hardware on embedded processor

Author

Kuan Jen Lin ; Chien Chih Hou

Author_Institution

Dept. of Electr. Eng., Fu Jen Catholic Univ., Taipei, Taiwan

fYear

2013

fDate

1-4 Oct. 2013

Firstpage

155

Lastpage

157

Abstract

The CORDIC algorithm can be used to calculate the trigonometric functions and widely used in real time digital signal processing. In this paper, we explore various hardware structures in combination with software to realize the trigonometric functions as processor´s instructions on Altera Nios II SOPC platform. With Nios II custom instructions, you can take full advantage of the flexibility of FPGAs to meet system performance requirements. Experimental results shows the proposed custom instructions are typically 1000 times faster than software functions in C language on the platform.

Keywords

adders; computational geometry; digital arithmetic; digital signal processing chips; field programmable gate arrays; shift registers; system-on-chip; Altera Nios II SOPC platform; C language; CORDIC algorithm; FPGA; adders; coordinate rotation digital computer algorithm; embedded processor; real time digital signal processing; shifters; system performance requirements; trigonometric custom functions hardware; trigonometric functions; Algorithm design and analysis; Field programmable gate arrays; Hardware; Signal processing algorithms; Software; Software algorithms; Vectors; CORDIC; custom instruction; embedded processor; trigonometric functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (GCCE), 2013 IEEE 2nd Global Conference on

Conference_Location

Tokyo

Print_ISBN

978-1-4799-0890-5

Type

conf

DOI

10.1109/GCCE.2013.6664782

Filename

6664782