LabVIEW Encoder not reliably returning Rate

[ayeckley]

Writing fixed timebase rate codes (as opposed to interrupt-triggered ones)gets complicated, especially at low rates when there are relatively few ticks per loop (aka discretization error). Looks like we'll have to add a second DSC and DIO module to our already-completed electronics board be able to use closed-loop control for our drive motors since all of our DIO channels are used (assuming I'm understanding the "every other channel" workaround correctly).

Unless: Joe - any chance someone at NI could provide some reference code based on an interrupt-driven approach instead of a timed loop approach? We just don't have enough time between now and ship date to write and test our own version.