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View Full Version : What is max sample rate of the FPGA?


Bryscus
01-26-2009, 09:42 AM
Hello all,

I've had no luck in trying to find some information on the FPGA sampling rates. I've tried to dive into the WPILIB source code that was provided, but I can't find any definite answers. I'm sure the FPGA has a sample rate much higher than anyone will realistically need, but I don't know. Anyone have some answers? Thanks.

-Bryce

EricVanWyk
01-26-2009, 10:09 AM
You will need to be more specific with your question. What aspect of the FPGA are you concerned with?

Analog Inputs are sampled at 500kS/s spread over 8 channels. Digital Inputs are sampled a little quicker than every 7us (I can't remember the exact number) in general, but specific ports are slower.

Kevin Sevcik
01-26-2009, 10:28 AM
Per this Q&A (http://forums.usfirst.org/showthread.php?t=11371) the DIOs are sampled at 153kHz.

Bryscus
01-26-2009, 01:17 PM
Cool, thanks.