I have a top-level vi which opens an FPGA reference, then passes the reference to a series of sub-vi's. It works fine.
I made a new project and loaded it up with the same FPGA vi and the
relevant host vi's. Then I made another top-level vi in that
project to open the same FPGA vi reference and pass that reference to
the same first sub-vi. This resulted in a broken wire between the
"Open FPGA Reference" and the first subvi. The desired FPGA vi is
selected in the "Open Reference" node. The error I get is this:
"You have connected clusters with different elements. Cluster
FPGA VI Reference out->HW Exec Ref->(Unnamed), a unsigned word
[16-bit integer (0 to 65535)] enum{HW Refnum,
<00><00><00>FPGA Top
Level.vi<00><00><00>FPGA
Target<00><00><00><00>PTH0<00><0"
I get the same behavior whether I copy/paste from the functional vi or
just put the nodes in by hand from the functions palette. My VI's
are pretty complicated- they call subvi's and use FIFOs and memory
objects. I am fiddling with reproducing the problem with simpler
VI's. The simplest possible combination of one top-level, one
sub, and one FPGA vi did not reproduce the problem, so it must be
something a little more subtle.
I hope that is a bit more clear. Thanks for responding!
