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Unread 06-08-2010, 12:18
jhersh jhersh is offline
National Instruments
AKA: Joe Hershberger
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Re: Is the crio powerful enough?

Quote:
Originally Posted by kamocat View Post
Another note on the Analog Inputs: 800,000 samples/second for a single channel.

What do they mean by "scanning" here? Is that constantly switching between channels?
Actually, this is controlled by both the hardware in the module and the FPGA code. The way the FPGA is written, the maximum single channel rate is 500ks/s.

Scanning refers to sampling more than one channel (i.e. muxing between channels). The overall max module sample rate is unaffected by the number of channels scanned, but the rate per channel is divided by the number of channels.

This means if you can reliably distinguish 8-bits, then the data transfer rate through analog input is 500 kBytes per second. That's one of the faster options.

-Joe
 


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