On Thu, 9 Feb 2006, Phil wrote:
>
> Using one of the spare EP930x timers, I am actually getting quite
> reliable and accurate timing for sampling signals at a rate of
> ~5.3kS/s. Also, although I haven't had a chance to test, I am hoping
> that I will be able to do this across multiple channels (up to 6
> channels, giving ~32kS/s total).
>
> Which reminds me, I was going to see if anyone was interested in the
> drivers that I have written for ADC sampling? Probably not terribly
> robust yet, since I only have the one board to play with at the
> moment, but could be useful nonetheless. Let me know if you are and
> I will post them.
I'd be very interested.
Jim
> --- In Jim Jackson <> wrote:
> >
> >
> > On Wed, 8 Feb 2006, Phil wrote:
> > > --- In "ajbanand" <ajbanand@> wrote:
> > > >
> > > > Hi all,
> > > >
> > > > i have TS-7250 with MAX197 ADC.
> > > > i am trying to provide voice support to my board using the ADC.
> > > > i have configured my ADC for single channel usage..
> > > > its not giving proper digital values for the analog input, i am
> > > getting
> > > > value like 0,5,17 etc all less than 100. for bipolar -5 tp +5
> range
> > > > these values all seem to be noise..
> > > > can anyone please explain what could be wrong in my approach...
> > >
> > > If you reply with the code that you are using, you will get a
> better
> > > response from the members of this group. Without it, we can't
> really
> > > help.
> > >
> >
> > Also it would be of use to know the circuit schematic for the
> electronics
> > feeding the input.
> >
> > However having said that, I can't see how you can reliably use the
> MAX197
> > for sampling voice or anyother signal > half the the Kernel HZ
> value.
> > Timing for the sampes will not be accurate enough, even though
> sampling
> > one input only, one can get sampling rates of upto 50K samples/sec
> (If my
> > memory if correct).
> >
> > Jim
> >
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
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