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Discussion Groups | TMS320C55x | band pass FIR filter

Technical discussions about the TI C55x DSPs (including the c5501, c5502, c5503, c5507, c5509, c5510 and OMAP5910).

  

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band pass FIR filter - vish...@gmail.com - Feb 9 13:56:54 2007



hi everyone
i am working on TMS320VC5510 dsp kit, i want to make bandpass fir filter  and signal is comming
at the input continously but i am unable to do it .
if anybody have an idea about that .
regards 
vishal srivastava



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Re: band pass FIR filter - Wei Li - Feb 12 10:00:44 2007

Check out the dsk_app example in the DSK5510 kit. They do highpass and
lowpass real time controled by a switch.

On 2/8/07, v...@gmail.com <v...@gmail.com>
wrote:
>
>   hi everyone
> i am working on TMS320VC5510 dsp kit, i want to make bandpass fir filter
> and signal is comming at the input continously but i am unable to do it .
> if anybody have an idea about that .
> regards
> vishal srivastava



(You need to be a member of c55x -- send a blank email to c55x-subscribe@yahoogroups.com )

Re: band pass FIR filter - Wei Li - Feb 12 10:02:55 2007

What do you mean by "it doesn't work"? No audio output; there is audio
output but distorted; or sounds normal but no bandpass effect as you
expected.

On 2/11/07, vishal srivastava <v...@gmail.com> wrote:
>
>  On 2/10/07, Wei Li <l...@gmail.com> wrote:
>
> > Check out the dsk_app example in the DSK5510 kit. They do highpass and
> > lowpass real time controled by a switch.
> >
> >
> > On 2/8/07, v...@gmail.com <v...@gmail.com >
> > wrote:
> > >
> > >   hi everyone
> > > i am working on TMS320VC5510 dsp kit, i want to make bandpass fir
> > > filter and signal is comming at the input continously but i am unable to do
> > > it .
> > > if anybody have an idea about that .
> > > regards
> > > vishal srivastava
> > > 
> > >
> > hi
> >  thanks for replying me ,i checked  out this example its working for
> highpass filter but whenever i  used bandpass filter coffecient generated by
> matlab it doesn't work .plz help me if u have an idea.
> thanks
> regards
> vishal srivastava



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Re: band pass FIR filter - Wei Li - Feb 14 10:48:06 2007

How did you know there was no bandpass action? It's better to watch the
output wih a scope, or watch the memory, or use scanf() and printf() to be
sure.

You also need check the sampling frequency.
On 2/13/07, vishal srivastava <v...@gmail.com> wrote:
>
> Thanks for considering my issue....
> Yes there is no Bandpass action. Its working as a low pass
> filter(eventhough i have generated co-efficients for bandpass filter). What
> might be the error?
> Awaiting for u r reply....
>
> Regards
> Vishal
> On 2/12/07, Wei Li <l...@gmail.com> wrote:
> >
> >   What do you mean by "it doesn't work"? No audio output; there is audio
> > output but distorted; or sounds normal but no bandpass effect as you
> > expected.
> >
> > On 2/11/07, vishal srivastava <
v...@gmail.com<vishalsrivastava17%40gmail.com>>
> > wrote:
> > >
> > >
> > >
> > > On 2/10/07, Wei Li < l...@gmail.com <liwei2000%40gmail.com>>
> > wrote:
> > >
> > > > Check out the dsk_app example in the DSK5510 kit. They do highpass
> > and
> > > > lowpass real time controled by a switch.
> > > >
> > > >
> > > > On 2/8/07,
v...@gmail.com<vishalsrivastava17%40gmail.com><v...@gmail.com<vishalsrivastava17%40
gmail.com>>
> > > > wrote:
> > > > >
> > > > > hi everyone
> > > > > i am working on TMS320VC5510 dsp kit, i want to make bandpass fir
> > > > > filter and signal is comming at the input continously but i am
> > unable to do
> > > > > it .
> > > > > if anybody have an idea about that .
> > > > > regards
> > > > > vishal srivastava
> > > > >
> > > > >
> > > > hi
> > > >
> > >
> > > thanks for replying me ,i checked out this example its working for
> > > highpass filter but whenever i used bandpass filter coffecient
> > generated by
> > > matlab it doesn't work .plz help me if u have an idea.
> > > thanks
> > > regards
> > > vishal srivastava
> > >
> > >
> > >
> > >
> >
> > 
> >



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Re: band pass FIR filter - Bhooshan Iyer - Apr 10 7:45:25 2007

Is it not so odd that the OP has not bothered to close this thread by
either thanking or continuing the discussion?

And it doesnt seem to be an isolated incident either...There is an
increasing trend of "ask it, leave it". Doesnt look good for certain
to see bunch of them from India...

--Bhooshan

On 2/13/07, Wei Li <l...@gmail.com> wrote:
> How did you know there was no bandpass action? It's better to watch the
> output wih a scope, or watch the memory, or use scanf() and printf() to be
> sure.
>
> You also need check the sampling frequency.
>
> On 2/13/07, vishal srivastava <v...@gmail.com> wrote:
> >
> > Thanks for considering my issue....
> > Yes there is no Bandpass action. Its working as a low pass
> > filter(eventhough i have generated co-efficients for bandpass filter). What
> > might be the error?
> > Awaiting for u r reply....
> >
> > Regards
> > Vishal
> >
> >
> > On 2/12/07, Wei Li <l...@gmail.com> wrote:
> > >
> > > What do you mean by "it doesn't work"? No audio output; there is
audio
> > > output but distorted; or sounds normal but no bandpass effect as you
> > > expected.
> > >
> > > On 2/11/07, vishal srivastava <
v...@gmail.com<vishalsrivastava17%40gmail.com>>
> > > wrote:
> > > >
> > > >
> > > >
> > > > On 2/10/07, Wei Li < l...@gmail.com <liwei2000%40gmail.com>>
> > > wrote:
> > > >
> > > > > Check out the dsk_app example in the DSK5510 kit. They do highpass
> > > and
> > > > > lowpass real time controled by a switch.
> > > > >
> > > > >
> > > > > On 2/8/07,
v...@gmail.com<vishalsrivastava17%40gmail.com><v...@gmail.com<vishalsrivastava17%40
gmail.com>>
> > > > > wrote:
> > > > > >
> > > > > > hi everyone
> > > > > > i am working on TMS320VC5510 dsp kit, i want to make bandpass
fir
> > > > > > filter and signal is comming at the input continously but i am
> > > unable to do
> > > > > > it .
> > > > > > if anybody have an idea about that .
> > > > > > regards
> > > > > > vishal srivastava
> > > > > >
> > > > > >
> > > > > hi
> > > > >
> > > >
> > > > thanks for replying me ,i checked out this example its working for
> > > > highpass filter but whenever i used bandpass filter coffecient
> > > generated by
> > > > matlab it doesn't work .plz help me if u have an idea.
> > > > thanks
> > > > regards
> > > > vishal srivastava
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
> > 

-- 
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I've lost almost 300 games. 26 times I've been trusted to take the
game winning shot and missed.
I've failed over and over again in my life.
And that is why I succeed."
        -- Michael Jordan
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