Hi,
I have two NI 9512 in a 9030 cRIO Chassis.
I have successfully created a new project, added my cRIO, added two Axis configued them and run up the interactive test panels. My Stepper motors are running as should be. This was good for a simpe test to verify my system is all up and running.
I have other requirements for the system that require me to run this on FPGA. I took to the LabVIEW example finder as a place to start and came across "Stepper Interface (9512).lvproj"
This is for a single axis, so I made a clone of the FPGA code and ensured they had different names to the first axis. Compiled and ran it. When I run this I am seeing my stepper motor "judder" at random intervals during the rotation, almost as if it is slowing and speeding up.
I am trying to get to the bottom of this and understand why this is happening. Any advice would be greatly apreciated.
Using LabVIEW 2014 SP1
Many Thanks
Kev