The implementation of 32bits floating sin&cos functions with FPGA
Uan J · Microcomputer Information · 2008
First,this paper introduces the principle of CORDIC algorithm and the structure of standarded IEEE-754. Based on the traditional CORDIC algorithm,programs and design the CORDIC kernel cores and processor unit with Verilog HDL language. It im-proves the calculation precision through increasing the iteration times,optimizing and selecting the arguments,making the designed soft-core adapted to higher precision required occasion. The output data can be directly compatible with most of the processors by the IEEE-754 standard processing,so its application area is widely extended. Finally it carries out the timing simulation with Quar-tus Ⅱ 5.1,the result shows that the algorithm has a great edge in the hardware.