On Wed, 10 Oct 2007, j.chitte wrote:
> Hi,
>
> I have been talking to a engineer friend about my tests with the 7250
> + Max193 and it has got him interested. He has a specific need for
I'm assuming thats a typo and you mean the MAX197 ADC chip.
> some fairly fast ADC and was asking what the max sample rate was.
>
> Since my use is very low data rate I was not able to give a full
> answer but figures I'd seen were not too fast so I wondered if
> someone who has experience could give an accurate idea of what can be
> attained.
>
> I'd like to know max sample rate assuming no other major tasks
> running other than system requirements for the following.
Using Phillip McCarley's ADC kernel module (on the files page of this
group) you can get 8000 samples per sec. without anything special - other
than an otherwise unloaded machine. Dunno what the jitter on the samples
would be like, it uses a spare timer in the CPU to generate timed
interrupts for doing the sampling.
>
>
> Std kernel + adc kernel driver; 2.4 + realtime layer; 2.6 kernel.
>
> any other info that seems relevant would be most welcome also.
>
> regards,
>
> /js
>
>
>
>
>
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