Worldwide Support And Services - National Instruments R Series User Manual

Capability
Use the Open/Close FPGA
Reference VI functions to
run an FPGA VI and then
disconnect the USB cable.
Use Interactive Front Panel
Communication to run an
FPGA VI and then
disconnecting the USB
cable.
Download the bitfile to
flash memory and set it to
run when loaded to FPGA.

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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.
14 | NI USB-7856R OEM User Manual | ni.com
Table 5. Autonomous Mode Capabilities
Call the Close FPGA VI Reference Function without aborting
or resetting the FPGA VI before you disconnect the USB
1
cable.
After you disconnect the USB cable, any VI running on the
NI USB-7856R OEM device continues to run and collect data,
which can later be retrieved by reconnecting the USB cable
and re-opening the original FPGA reference.
The front panel indicators stop updating.
After you disconnect the USB cable, any VI running on the
NI USB-7856R OEM device 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. The bitfile automatically starts running
whenever power is applied to the
NI USB-7856R OEM device. To collect data, you must
reconnect the NI USB-7856R OEM device 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.
for NI Factory Installation Services, repairs, extended warranty, and
to register your National Instruments product. Product registration
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