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Discussion Groups | TMS320C54x
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
Search Results for "rfft"
Anybody used rfft() from dsplib?
the_believer_1976 - Feb 4 2004
Good morning,
does anyone have C code using cbrev() and rfft() functions
of DSP lib?
I have noticed that the example given in \examples\rfft, referred
on ... 
rfft
Matthew Singer - Feb 12 2000
Anyone know of a publicly available RFFT for the C54 (02 and later 41)
that
will handle 2K points?
... problem with rfft
satish_tvs - Jul 20 2002
hello,
i was not able to use rfft and rifft functions provided in dsplib.
They are not giving correct results. cfft and cifft are working fine.
please let me k... RFFT from dsplib not working... [4 Articles]
pet_dsp - Oct 5 2004
Hello everybody,
I am wondering if any experts here could help solve
my problems with using rfft (routine from TI's dsplib) on a 5402 DSP.
Here is my scenar... rfft problem
Sazali Senawi - Oct 23 2002
Hi all;
Im still stuck when using the rfft function eventhough
Ive followed every advice ive found in the mailing
list archive concerning the rfft. Ive compared t... Q: problem about dsplib real fft
jamesztyou - Aug 13 2002
I had searched the former msgs, but can not find answer. so I post a
help message again.
follow is the test code where FFTSZ is a const integer 256, noscale
defin... Problems with RFFT/CFFT - DSPlib
Guilherme Martinhon - Jan 31 2006
Hello!
I´m using the C5416 DSK and now I´m writing a code that do the FFT of a signal generated on the same code. I´ve used the cbrev functions, to r... Spectrum from the RFFT [2 Articles]
Guilherme Martinhon - Feb 7 2006
Hello people! I´pm working with the RFFT function and I´m testing my program with a sinusoidal signal with some number of samples and different FFT length. But I noticed th... Re: problem about dsplib real fft
Vasudev Nayak - Aug 15 2002
Hi James,
Try using unpacki before calling the cbrev as rifft
takes in real input.
VN
_________________
>
> Message: 2
> Date: Tue, 13 Aug 2002 12:37:56 -... cbrev [2 Articles]
Sivaram Yadavalli - Jun 6 2003
hi there,
i am rather new to code composer studio V2. i want to calculate the fft
of an array. i saw that there were some C-callable functions in dsplib and tried ... loss of quantization bits when doing FFT and IFFT
ahgu - Oct 6 2003
cbrev(x,x,NX/2);
rfft(x,NX,1);
unpacki(x,NX);
cbrev(x,x,NX/2);
rifft(x,NX,1);
When I get the result back, the data is reduced by a factor of 128. How t... Interpretation of FFT results [2 Articles]
Santosh M Nadig - Jul 13 2001
Hello,
Has anyone used the DSP library provided by TI for performing
N-point real FFT. It says that when the input is in bit-reversed order,
the output of rfft() ... size of FFT code from DSPLIB [3 Articles]
wei_wen_dai - Feb 2 2002
Hi all,
I am using the cfft and rfft functions from the TI's DSPLIB.
It is mentioned in TI's App Notes (SPRU518) that the code size of
both functions is about ... Problems using Dsplib
Torgeir Jakobsen - Sep 8 1999
Hi
I have a small program where I use some of the functions from the TMS320C54x DSPLIB
version 1.0.
I have a input time series... Using RIFFT and CIFFT [2 Articles]
Guilherme Martinhon - Jun 6 2006
Hello people!
Does someone in this groups use the RIFFT or CIFFT function? I´m using it, but I can´t reach some results. I´m doing a FFT of a real signal (using RFFT) anda aft... Doubts abou Re-Im format
Guilherme Martinhon - Feb 2 2006
Hello people!
Does someone know where I can found the definition of the Re-Im format? I´d like to know how can I interpret the output vector of the Rfft a... FFT , IFFT and DSPlib
Curl - Dec 4 2001
Hello ..
I'm not a C programmer, and i have little experience in this langage. I'd
like to ask a question to people who use the dsp library.
To perform an FFT ... real time problem
seba...@seareka.com - Apr 2 2008
Hi everyone,
I am working on DSK5416 and CCS.
I'm doing real-time using DMA and McBSP to communicate with the codec. I'm working with 16 bits words and with DSP/BIOS configurat... FFT [2 Articles]
SACHIN JAIN - Jan 17 2002
hi friends,
i am using dsk5402 and CCS 2.0 for a real time
application and i have to calculate fft.
problem 1:
i write code to configure codec and i used ...