A DSP laboratory based on a spreadsheet and TMS320C25 simulation software

There have been rapid advances in the field of digital signal processing (DSP) and several hardware devices, specifically designed to perform the required processing tasks at high speed, have become available. This development highlights the need for the teaching of DSP at an earlier stage of the student's education which in turn demands a simple, low cost, 'hands-on' laboratory experience approach to the subject. The paper suggests methods of using a spreadsheet package to develop DSP algorithms and also provide a source of input data to the Texas Instruments TMS320C25 simulator and converts output data from the simulator to give a graphical display of the results. This approach provides an inexpensive but powerful tool for students and other researchers to develop, debug and test DSP algorithms and eliminates the need for a specially designed hardware development system.