11-03-2015 07:41 AM
Hello all,
I am trying to measure the frequency of a digital signal using the NI 9403. I based my code on the example I found on http://www.ni.com/white-paper/14549/en/ to create a simple VI on my FPGA that measures the frequency.
However, when I try to compile my VI, Labview throws me the error:
FPGA I/O Node: ": Mod8/DIO20 (Read)
The selected object takes one or more clock cycles to execute.
Remove the object from the single-cycle Timed Loop or replace the single-cycle Timed Loop with a While Loop.
The example on the internet does show a read in a single cycle timed loop. Now I wonder, is this something that is impossible with the NI 9403? And if not, how can I fix my code to work on the NI 9403?
11-05-2015 03:24 AM
Hi Arvest,
Unfortunately the 9403 does not support Single Cycle Timed Loop operations.
NI 9403 (FPGA Interface)
http://zone.ni.com/reference/en-XX/help/370984R-01/criodevicehelp/crio-9403/
Sorry about that.
Pete
NI Applications Engineer