> Hi Michael,
>
> thank you for your reply.
>
>>The sample rate (2kHz) and number of samples taken per command (2048)
> are design
>> limitations inherent in the AVR program and the mechanism it needs
> to use to
>> storing samples,
>
> I don't need so much samples, one is enough, but I need it immediately
> after the conversion. As I saw in the ts7800ctl.c there is wait
> (sleep) for 1.5 sec.
> What can I do to get the sample sooner? Do I need to change the code
> in AVR? Can I do this?
The 1.5 second delay is because the code is waiting for all 2k samples a
2kHz to complete. If you need only one sample, write a value of 0xFFFF to
only the first location in the memory mapped buffer space, then initiate the
conversion and poll this value for a non-FFFF value. This should take a lot
less time, probably not more then 500us (since that's how fast samples
arrive), although I'm not sure how long the command to the AVR takes.
>> I'm going to be updating the preliminary manual (the bleeding edge
> version
>> on my personal support page; the official released version won't change
>> until I'm finished) with some more information on the ADC as I can
> piece it
>> to together, hopefully that will help.
>
> I'll check your home page regularly :-).
>
> Thanks
> Jiri
______ Best Regards,
|__ __/ Michael Schmidt
|| Software Engineer
||echnologic Systems (EmbeddedARM.com)
|| (480) 16610 East Laser Drive #10
|/ 837-5200 Fountain Hills, AZ 85268
http://oz.embeddedarm.com/~michael
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