I'm trying to use the AS5030 rotary magnetic encoder from Austria Microsystems.
I have it wired for the sin/cos outputs cause I want to use it measure RPMs
off a CIM. There are no bundled Labview examples of using the AS5030. There's
an exmaple here in CD using it in SPI mode, not analog sin/cos. A team
did post an example over at ni.com and I started with that example:
https://decibel.ni.com/content/servl...nd%20Motor.zip
The full post starts here:
https://decibel.ni.com/content/thread/11955
When I try this example, it fails right from the getgo at WPI_AnalogTriggerOpen.vi.
THe error is:
Error -63195 occurred at Read/Write Control in
FPGA_AnalogTriggerWriteUpperLimit.vi->WPI_AnalogTriggerOpen.vi->Magnetic Encoder with Motor v2.vi
Possible reason(s):
NI-RIO: (Hex 0xFFFF0925) The handle for device communication is invalid or has been closed.
Restart the application.
It's FPGA_AnalogTriggerWriteUpperLimit.vi that is emitted the error.
I went into Analog Trigger Open and turned on highlight execution to see
what I could see... With highlight execution enabled it all works!! Consistently!
So it only works when you are watching...
I've attached a picture and of the execution path when it works (highlight execution enabled)
So I'm guessing it's a race condition somewhere in the libraries. Are
other folks seeing this issue? Is there a fix or a workaround? What is the right
vehicle for reporting WPI library bugs?
Thanks,
Pete, Team 2590