Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).
Search Results for "fft"
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wygonski - Nov 27 2003
Can anyone give me some guidance on the dynamic range of signals that
I can process with an FFT on the 563xx? Here's my situation:
I have a 24-bit A/D, and I am ...
funcuit - Jan 12 2004
I wish you all happy new year.
Recently, I'm working on FFT for speech-recognizer.
Since I have hardly had dsp-assembly experience, it's been so ...
Marius Goosen - Sep 6 2007
I am really new at programming a DSP, and a simple task is starting to cause
me some trouble.
I'm using the Motorola 56807 EVM with Cosewarrior and PE. I want to
Parind Shah - Mar 12 2003
I'm trying to run the FFT.asm that comes with the codewarrior
package for Starcore 8101 DSP ( i have the ADS ) and while i run it
it gives a message th...
josalfe2002 - Apr 26 2002
I found all the FFT code I need, but I have some question:
I'm working with Codewarrior for Motorola DSP, and I found the FFT
code on the Motorola...
josalfe2002 - Apr 24 2002
I need to find the C code for the FFT algorithm. I'm working
on "Codewarrior for Motorola DSP". If anyone can help me, I'll really
Papa__J - Jul 9 2002
Does anyone know where to find FFT benchmarks for the Mot DSP's. In
particular, I'm looking for the time it takes to execute a 512 or
1024 point real FFT's on a DSP...
Parind Shah - Feb 8 2003
I downloded the Filter Library from motorola site and I have all the
basic code for Filters, but they have no documentation how to use it.
They should h...
josalfe2002 - Aug 3 2002
Hi everyone...I'm now trying to use the Inverse FFT on my DSP board.
Particulary, a Complex Inverse FFT. I started with a Known Complex
vector of 8 elements. I take...
josalfe2002 - Jul 23 2002
Let me going to the point. I'm using the SDK libraries with my
codewarrior code. When I use the code, i simply use the "open"
funtion. My board (DSP5...
mickmonx - Jun 27 2004
I'm currently attempting to detect the level of the 66kHz component
of an arbitrary signal using an 56F8323, I was hoping that I could
sample the si...
Barnard Adam - Jun 4 2008
I need the basic 'C' code for performing an FFT algorythm on the Freescale =
xumrswimr - Jun 17 2002
Hi, I'm pretty new to this but please help me out anyways. I'm using
the DSP56F827EVM board and I'm having some problems programming an
FFT with it.
I'm not re...
Christian Langen - Jun 21 2007
the regular algorithm to determine discrete frequencies in a spectrum is the Fourier Analysis. For discrete time signal processing this transform is modified to the Dis...
C_Kessell - Dec 6 2001
Is anyone aware of any up-to-date FFT application notes or code from
Motorola for the DSP563xx family? The Motorola web site is now almost
useless for such things (...
sfol...@iupui.edu - Jul 7 2007
Has anyone ever ran across a CZT (Chirp-Z Transform) algorithm for a Motorola 56311 (or similar). I am wanting to nest an FFT in the CZT, so that I can narrow the spectrum and dum...
cmkessell - Jan 17 2002
Has anyone successfully used Motorola's split56.asm or split563.asm
macros for unscrambling the data after using a N/2-point complex FFT
to transform N real data po...
sudamekedar - Sep 5 2003
I want to calculate the harmonics (%) present in the Power system.
I want to consider the real part only. I tried using rFFT with three
options (DEFAULT, S...
David - May 5 2005
--- In motoroladsp@moto..., "dibosco" wrote:
> Codewarrior is bloated (it's simply unbelievable how big it is now);
> slow to load; *incredibly* slow at debug...
sudamekedar - Sep 7 2003
after doing the FFT i got my fundmental component as (real = 1200
imag = -1300) and my second harmonic component as (real = -90 and
imag = 60). Now i want ...
sudamekedar - Sep 8 2003
i used rFFT function for calculating power system harmonics but
found out that the results were inconsistent. espacially the second
harmonic was very high ...
vo1hl - Mar 22 2003
I am using SDK 2.4.1 with CW 4 on a DSP56F826 platform without
external memory. I have written a program that sucks in a 128 sample
vector at a sa...
Art Du Rea - Jun 5 1999
Illustrious DSP Group Members:
Has anyone actually used the freebie Motorola C compiler that comes with
the EVM kits to successfully implement a program on an EV...
Christian Langen - Jul 5 2007
the maximum and minimum values of the signal can be determined by deriving the signal. Here the zeroes of the derivative give these values.
A more simple alternati...
R.A.Imhoff - Jun 2 2005
In what form do you have this dsp, is it a demo board?
I found some datasheets here:
Jacob Christ - Dec 9 2002
Whatever way is more correct, I was doing it the way Art suggested
except that I didn't have the Mirror. Well, today it's working Arts
way and the way I ...
Bende Georg - Sep 9 2003
We have a real-time application where SQRT function is needed; we have a
lookup-table based solution with linear interpolation between the table entries.
It's not t...
Leonard N. Elevich - Oct 31 2002
These abbreviations stand for:
AS -> Auto scaling
BFP -> Block floating point scaling
NS -> No scaling
- Apr 20 2001
The following is a Motorola product
announcement containing the press release on additions to the 56800 family. It
also contains detailed information on ...
Wim de Haan - Sep 9 2003
I use the following fast and short code (below) for long square root.
Wim de Haan
W.J. de Haan
Mariano Filippa - Feb 27 2004
I don't know if I can help you with this. I guess that to calculate the
energy of the signal, you need to do some sort of FFT to decompose the