1958 Turntable from the Black Forest - 20: Fast Fourier Transform on the SAMA5D4 - End of Chapter 3

RE: 1958 Turntable from the Black Forest - 20: Fast Fourier Transform on the SAMA5D4 - End of Chapter 3

Jan Cumps — Thu, 21 May 2015 10:57:51 GMT

Finally got that video uploaded.

RE: 1958 Turntable from the Black Forest - 20: Fast Fourier Transform on the SAMA5D4 - End of Chapter 3

Jan Cumps — Wed, 20 May 2015 18:33:57 GMT

Digging deep now [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-7be1f75c-ec66-413e-b94c-c2eed5f50732/contentimage_5F00_1.png:16:16]

Downloading Yocto distro source...

[View:/resized-image/__size/1089x277/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-7be1f75c-ec66-413e-b94c-c2eed5f50732/contentimage_5F00_179262.png:1089:277]

RE: 1958 Turntable from the Black Forest - 20: Fast Fourier Transform on the SAMA5D4 - End of Chapter 3

clem57 — Wed, 20 May 2015 16:03:02 GMT

I like your style here and agree about the power of the board is hidden by the up hill struggle it takes to understand the potential.

Clem

RE: 1958 Turntable from the Black Forest - 20: Fast Fourier Transform on the SAMA5D4 - End of Chapter 3

Jan Cumps — Wed, 20 May 2015 15:52:29 GMT

I made a mistake in my time measurement for sampling. On the Arduino I measured the time to take 128 samples, on the SAMA5D4 I measured the time to take one sample.

I've corrected the post, but left the original info in place for reference.

RE: 1958 Turntable from the Black Forest - 20: Fast Fourier Transform on the SAMA5D4 - End of Chapter 3

DAB — Tue, 19 May 2015 18:40:45 GMT

Good post.

It is always a good idea to start with very simple FFT's. Unless your are going for a wealth of different frequencies, you only need just a few to put on an awesome light show.

DAB