Quote:
Originally Posted by Tom Line
There was a very lengthy discussion about jitter, sampling, and RPM calculation in 2012. To make a long discussion short, if you are using the period function in LabVIEW, you may actually be better off with a 1 count per rotation encoder to maximize the period and make your RPM calculation more accurate.
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While much of that discussion still holds to some extent, much of it is not all that applicable given the roboRIO's vastly faster DIO, unless you have a blindingly fast encoder signal.
Quote:
Originally Posted by Tom Line
We used it very successfully in 2012, and 2013. This will also eliminate any worries you may have about loading the roborio.
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The roboRIO and the cRIO does / did all quadrature decoding in the FPGA. It incurs no more or less load on the system sitting unswitched vs. switching quickly.