You are trying to understand too many concepts at once. The best approach for
you is
to get the DSK 5416 audio I/O example working, and then make small,
step-by-step
changes.
In the most basic audio I/O example that comes with the DSK, data is just looped
back
from input to output. Once that's working, the first thing you can try is
to create
a buffer, maybe 1024 samples or so, to insert a delay in output data. Then you
would
have have audio data "storage" as you mentioned. The second thing you can try
is to
adjust sampling rates.
-Jeff
e...@gmail.com wrote: >
> Thanks a lot for ur reply Jeff...
>
> We ve that Audio Project which ur referring to, but its difficult to
understand as it has lots of header files in it.. ( It is a C file
right...?!!!!)
>
> Can u just brief us as to where the data gets stored, change its sampling rate
n how to access it & process it while the C code is still running..
>
> Also there r 3 McBSP port in C5416 n where in these 3, the real time datas get
stored..?
>
> Also is there any asm file tat is available for getting the real time inputs.
We r doing a project on audio processing n so we r concentrating on that n now v
r stuck up with this, getting samples, itself.
>
> We tried to write a code by ourself by setting a sample rate using the timer
given to the codec n get the samples wen an interrupt occurs(TINT).. But v want
to know how to make the samples get loaded to a particular McBSP... also v could
not move the contents of the accumulator to the output port via dxr as DXR is
pointing to McBSP0 data receive register 2
> (i.e., v tried moving from accumulator to dxr but it got loaded to DRR20)
>
> V r trying to learn the interfacing of the codec with the dsp n it will help
us if u brief us "Which register r pin is used to change the sampling rate of
the codec...?"
>
> Just brief us about getting realtime inputs in general...
>
> It will be of great help to us if u can help us..
>
> Lakshmana Karthik S.
> (e...@gmail.com)
Reply by eagl...@gmail.com●June 1, 20072007-06-01
Thanks a lot for ur reply Jeff...
We ve that Audio Project which ur referring to, but its difficult to understand
as it has lots of header files in it.. ( It is a C file right...?!!!!)
Can u just brief us as to where the data gets stored, change its sampling rate n
how to access it & process it while the C code is still running..
Also there r 3 McBSP port in C5416 n where in these 3, the real time datas get
stored..?
Also is there any asm file tat is available for getting the real time inputs. We
r doing a project on audio processing n so we r concentrating on that n now v r
stuck up with this, getting samples, itself.
We tried to write a code by ourself by setting a sample rate using the timer
given to the codec n get the samples wen an interrupt occurs(TINT).. But v want
to know how to make the samples get loaded to a particular McBSP... also v could
not move the contents of the accumulator to the output port via dxr as DXR is
pointing to McBSP0 data receive register 2
(i.e., v tried moving from accumulator to dxr but it got loaded to DRR20)
V r trying to learn the interfacing of the codec with the dsp n it will help us
if u brief us "Which register r pin is used to change the sampling rate of the
codec...?"
Just brief us about getting realtime inputs in general...
It will be of great help to us if u can help us..
Lakshmana Karthik S.
(e...@gmail.com)
Reply by Jeff Brower●May 31, 20072007-05-31
Lakshmana Karthik S-
> I'm a third yr student
>
> I'm working with the Kit dskC5416...
>
> I need to get the audio sample from the port available n i need to process on
those samples...
>
> Can u help me in this...!! I saw a post from u about interfacing with the PC
so, u must be knowing how to get the real valued samples from McBSP
>
> I've only a months time to finish my project on audio processing, so now
working on the processing part.. I need to get the samples n i'm stuck as
to how to get those...
Audio I/O source code and project examples come on the CD with the DSK 5416, or
you
can download them from Spectrum Digital website. Here is a page that shows how
to
build audio I/O example programs:
I need to get the audio sample from the port available n i need to process on
those samples...
Can u help me in this...!! I saw a post from u about interfacing with the PC so,
u must be knowing how to get the real valued samples from McBSP
I've only a months time to finish my project on audio processing, so now
working on the processing part.. I need to get the samples n i'm stuck as
to how to get those...
If any of u can be help me in this i'll be thankful to u...
Thank u,
Lakshmana karthik S.
(e...@gmail.com or s...@yahoo.co.in)