Fast Logarithms on a Floating-Point Device

Texas Instruments

Published Date: 06/01/1997

Description

This document discusses a fast way to calculate logarithms (base 2) on a TMS320C30 or TMS320C40. This TMS320C30/C40 function calculates the log base two of a number in about half the time of conventional algorithms. The method can easily be scaled for faster execution if less accuracy is desired. The mathematics of the function is discussed in detail. There are plots to determine accuracy at diffe

Parts

Part Number Name Companion Part
TMS320C30GEL TMS320C30GEL Buy Datasheet
TMS320C30GEL27 TMS320C30GEL27 Buy Datasheet
TMS320C30GEL40 TMS320C30GEL40 Buy Datasheet
TMS320C30GEL50 TMS320C30GEL50 Buy Datasheet
TMS320C30GELSD TMS320C30GELSD Buy Datasheet
TMS320C40GFL60 TMS320C40GFL60 Buy Datasheet