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Discussion Groups | MSP430 | FFT algorithm
The purpose of this group is to foster exchange of information on the Texas Instruments MSP430 family of microcontrollers and related tools. Everyone welcome, all levels of familiarity/expertise.
FFT algorithm - "yara.mouzannar" - Jul 27 14:14:03 2009
Hey
I was wondering if someone has a code that perform the FFT of samples stored in an array. I want to know what are the two frequencies that form a certain real signal. I am using the MSP430F2274 to sample the signal.
Thanks
------------------------------------
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I was wondering if someone has a code that perform the FFT of samples stored in an array. I want to know what are the two frequencies that form a certain real signal. I am using the MSP430F2274 to sample the signal.
Thanks
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: FFT algorithm - =?ISO-8859-1?Q?Fuli_Bal=E1zs?= - Jul 27 14:32:35 2009
Hi,
I give you a link where you can reach a library that perform FFT. I didn't
implement it yet, but I'm sure that you will strike out with some kind of
documentation and explanation.
So, the link is: http://www.fftw.org/
Good luck
2009/7/27 yara.mouzannar
> Hey
> I was wondering if someone has a code that perform the FFT of samples
> stored in an array. I want to know what are the two frequencies that form a
> certain real signal. I am using the MSP430F2274 to sample the signal.
>
> Thanks
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
I give you a link where you can reach a library that perform FFT. I didn't
implement it yet, but I'm sure that you will strike out with some kind of
documentation and explanation.
So, the link is: http://www.fftw.org/
Good luck
2009/7/27 yara.mouzannar
> Hey
> I was wondering if someone has a code that perform the FFT of samples
> stored in an array. I want to know what are the two frequencies that form a
> certain real signal. I am using the MSP430F2274 to sample the signal.
>
> Thanks
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: FFT algorithm - cantiwrx16 - Jul 27 20:08:13 2009
Hi,
Maxim-IC has an application note on this: http://www.maxim-ic.com/appnotes.=
cfm/an_pk/3722 . I ported the code to my 6812 before and it worked decentl=
y enough. Just beware there are seriously limitation on implementing a FFT =
to a micro-controller. It depends on what you're trying to sample, but with=
limited sampling speed and memory size, the output can be sketchy...
Good luck!
--- In m...@yahoogroups.com, Fuli Bal=E1zs wrote:
>
> Hi,
> I give you a link where you can reach a library that perform FFT. I didn'=
t
> implement it yet, but I'm sure that you will strike out with some kind of
> documentation and explanation.
> So, the link is: http://www.fftw.org/
>=20
> Good luck
>=20
> 2009/7/27 yara.mouzannar
>=20
> >
> >
> > Hey
> > I was wondering if someone has a code that perform the FFT of samples
> > stored in an array. I want to know what are the two frequencies that fo=
rm a
> > certain real signal. I am using the MSP430F2274 to sample the signal.
> >
> > Thanks
> >
> >=20=20
> >
>=20
>=20
> [Non-text portions of this message have been removed]
>
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Maxim-IC has an application note on this: http://www.maxim-ic.com/appnotes.=
cfm/an_pk/3722 . I ported the code to my 6812 before and it worked decentl=
y enough. Just beware there are seriously limitation on implementing a FFT =
to a micro-controller. It depends on what you're trying to sample, but with=
limited sampling speed and memory size, the output can be sketchy...
Good luck!
--- In m...@yahoogroups.com, Fuli Bal=E1zs
>
> Hi,
> I give you a link where you can reach a library that perform FFT. I didn'=
t
> implement it yet, but I'm sure that you will strike out with some kind of
> documentation and explanation.
> So, the link is: http://www.fftw.org/
>=20
> Good luck
>=20
> 2009/7/27 yara.mouzannar
>=20
> >
> >
> > Hey
> > I was wondering if someone has a code that perform the FFT of samples
> > stored in an array. I want to know what are the two frequencies that fo=
rm a
> > certain real signal. I am using the MSP430F2274 to sample the signal.
> >
> > Thanks
> >
> >=20=20
> >
>=20
>=20
> [Non-text portions of this message have been removed]
>
------------------------------------
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