>> General requirements
>> need to be able to capture 3 or 4 simultaneous readings
>> 12 bit resolution or more would be nice
>> want to take readings from the ADC about every 10 microseconds
>> would prefer an interrupt based system over polling
>
> err... interrupt every 10usec? That's 100,000 Interrupts per sec. My
> experience with the ts7200 leaves me to think that the max interrupt rate
> is more like 10,000 per sec. I think you'd need hardware that can do the
> timing and sampling, stuffing the samples into a buffer.
Actually more what I meant is that the ADC could take a sample on each
channel every 10 microseconds, store it in a FIFO of, say 256 per channel,
and then generate an interrupt when the FIFO is full. Does that sound
more reasonable?
--
Matthew Harrell
Bit Twiddlers, Inc.
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