Trigonometric computing embedded in a dynamically reconfigurable CORDIC system-on-chip

Abstract

This work presents the custom-made design of a 32-bit fixed-point trigonometric computer based on the CORDIC (Coordinate Rotation Digital Computer) algorithm and embedded in an AT94K40 system-on-chip device. This platform -composed of a 8-bit MCU that handles the program flow and a dynamically reconfigurable FPGA that synthesizes an evolvable slave coprocessor to speed up the calculus- provides a balanced control-computing architecture to efficiently process functions as sin(z), cos(z), atan(y/x) and sqrt(x 2+y2). This approach reaches significant area-time optimizations over other traditional software-oriented solutions inspired on powerful stand-alone microprocessors. © Springer-Verlag Berlin Heidelberg 2006.