FirGen

With firgen you can design Digital FIR (Finite Impulse Response) filters for the DSP (Digital Signal Processing) starter kits from Texas Instruments and Analog Devices.
The program calculates the impulse and frequency response for a requested frequency curve and window function. The result is plotted and can be saved in source code for the TI or AD assembler.

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With firgen you can design Digital FIR (Finite Impulse Response) filters for the DSP (Digital Signal Processing) starter kits from Texas Instruments and Analog Devices.
The program calculates the impulse and frequency response for a requested frequency curve and window function. The result is plotted and can be saved in source code for the TI or AD assembler.

Version history

version 2.0:	converted to Visual Basic
-	added EZ-Kit Lite support
-	added demo commands
version 1.0 :	initial release for Macintosh Chipmunc Basic

Usage

Usage is quite simple, first choose 'New filter...' from the File menu. Then enter the filter type, number of taps, window function and frequencies. Some filters work only with an uneven number of taps.
Firgen 'Quick and dirty' increases the number of taps with 1 if you enter an even number. After pressing OK the impulse response (filter taps) and frequency response will be calculated and plotted.
Now from the File menu the impulse response can be saved in TI-DSK or AD EZ-Kit Lite format. The source code for the filters are in the AD and TI directory. With the TI and AD assembler you can make your filter.

Shareware info

This program is shareware so you can distribute it to others, put it on BBS's, FTP sides, etc. If you use and like this program, please donate $10 using the Register program that accompanies firgen, or on-line. Your donation contribute to further development of this software.

Literature:

Paul A. Lynn and Wolfgang Fuerst, Introductory Digital Signal Processing

FIR Windowed Filter Design Program - WINDOW, L. R. Rabiner, C. A. McGonegal and D. Paul
Programs for Digital Signal Processing, IEEE 1979, Chapter 5.2

DSP, het vervolg, Gerrit Polder, Electron, Augustus 1996, blz. 353, September 1996, blz 402, November 1996, blz 489, December 1996, blz 541, Maart 1997, blz 123.

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Download

click here to download firgen20.zip.

On-line registration.