Table 3. Autonomous Mode Capabilities
Capability
Description
Use the Open/Close FPGA
Reference VI functions to run
an FPGA VI and then
disconnect the USB cable.
Call the Close FPGA VI Reference Function without
aborting or resetting the FPGA VI before you disconnect
the USB cable.
1
After you disconnect the USB cable, any VI running on the
NI USB-7855R continues to run and collect data, which
can later be retrieved by reconnecting the USB cable and
re-opening the original FPGA reference.
Use Interactive Front Panel
Communication to run an
FPGA VI and then
disconnecting the USB cable.
The front panel indicators stop updating.
After you disconnect the USB cable, any VI running on the
NI USB-7855R continues to run. Restore the Interactive
Front Panel Communication by reconnecting the USB
cable.
Download the bitfile to flash
memory and set it to run when
loaded to FPGA.
Download the bitfile to flash memory and set it to run when
loaded to FPGA. The bitfile automatically starts running
whenever power is applied to the NI USB-7855R. To
collect data, you must reconnect the NI USB-7855R to a
host computer before powering off the device.
Refer to the
LabVIEW FPGA Module Help
for more
information about downloading an FPGA VI to the flash
memory.
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1
The Host VI errors out if you do not call the Close FPGA VI Reference Function without aborting
or resetting the FPGA VI.
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375942A-01
Nov13
