--- In ragin shah <> wrote:
>
its not just a adc that is needed , you need a ac97 codec
the ts7250 suports what is needed at its end for it
see http://en.wikipedia.org/wiki/AC97 for a discription
a suitable chip would be
http://www.analog.com/en/prod/0,2877,AD1981B,00.html
if you where into building one and sort out the connections to the
ts7250 , easier to use a usb audio dongle for that
Dave
>
> Hi ! Jesse off!
> Thnaks for reply. As u said that i required USB with
> audio support.
> But I have ts7250 board with additional 8-channel A/D
> converter(max197 chip). So, I think i would be able to
> connect audio input directly to the max197 chip. If i
> m wrong then please let me know.
> Now , my doubt is how to enable this ac97 support in
> software as my SIP application requires devices like
> "/dev/dsp". So ,How to enable this support as far as
> Linux & software part is concerned.
> Waiting for ur reply !
> Thanks in advance !
> --- Jesse Off <> wrote:
>
>
> ---------------------------------
> The CPU has AC97 support, but you still need a codec
> chip, some analog
> support components, and some sort of audio connector
> to make sound.
> The TS-7xxx boards do not have this. This would
> increase board area
> and cost well above the next-best solution which is a
> $9.95 USB-based
> audio dongle. USB-audio is not so bad as it just
> happens to be one of
> those future proof USB devices since it was
> standardized in the USB
> specification and has multiple equivalent suppliers in
> the market.
> (unlike USB wifi)
>
> //Jesse Off
>
> --- In "shahragin1"
> <> wrote:
> >
> > I have ts-7250 developement board.I m running SIP
> application on it
> > to make a voip call.After running application,
> logical channel is
> > established.But,after some time it shows error like
> "/dev/dsp" not
> > found. This board has built-in ac97 support. So ,can
> anybody please
> > help me in solving this error.
> > Thanks in advance!
> >
>
>
>
>
>
>
>
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