Quote:
Originally Posted by Thad House
EDIT: Nevermind. I didn't see the 25ns number above. Does that mean that that the RoboRIO can take 40,000,000 edge to edge pulses per second
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It means the roboRIO
samples the edges at 40MHz, and timestamps them with a 40MHz clock (25ns resolution) when detected.
So no, you wouldn't get a usable reading at 40M edges per second.
Note: back in 2012, the cRIO FPGA took samples at only 153KHz, and timestamped them with a 1MHz clock. That's why we had all the discussions back then.