AVR-based FFT with LCD

my long overdue demo of FFT based on mega128@16MHz displayed on LCD(128x64), compiled with WinAVR-20071221rc1.
The FFT function I used: Fixed-point FFT routines for megaAVRs, (C)ChaN, 2005
http://www.embedds.com/avr-audio-spectrum-monitor-on-graphical-lcd/

Category:

Howto & Style

Tags:

• AVR
• FFT
• LCD

[yiphinming]

The source code of this demo can be found at

sourceforge, project name: avrfftlcd

This is the first release, feedbacks are welcome.

[frmauro]

Ok, thanks.

I´ll use this in EEG brain devices with 1 to 50 Hz range only.

These routines are ok.

Thanks and regards.

Francisco

[yiphinming]

oh, EEG. Once I want to control robot with EEG, signal pattern based. There are several projects on codeproject concerning EEG and ECG, maybe useful for you. Good luck with your project.

[frmauro]

I´m looking for fft routines.

Can you help me about these routines, where I find it?

Regards

[yiphinming]

If you want to do it with AVR, the link in the description of this video leads you to a good solution. I didn't read the code in deep, but it works well, and credit goes to the author of course.

If you want to do FFT on other platforms and/or using other languages, Google it for implemented solutions. Even you can't find any (really?), you'll get tons of info that help you out.

[frmauro]

Can you help me with this routines?

Thanks and regards

Francisco

[yiphinming]

and the problem is ?

[extremisto47]

@yiphinming The problem is in "Please write for me my code" ;-)

[pinguinociccione]

i see from the sourcecode you are using the screen's Ram! compliments! :)

[pinguinociccione]

i really appreciate the high framerate!

[graymalkin1234]

Holy crap the response time is phenomenal!

[LaPoscho]

Is the schematic and the source code still avaible?

[avionion]

Hi

can you please email me all the atmega128 project source files and circuit diagrams along with any related document? I need them or learning purpose, thanks

Best Regards