National Instruments NI 781xR User Manual download pdf (Page 15)

Chapter 1 Introduction

NI 781xR User Manual 1-6 ni.com

and functions to control the I/O, timing, and logic of the R Series device

and generate interrupts for synchronization. Select Help»Search the

LabVIEW Help to view the LabVIEW Help. In the LabVIEW Help, use the

Contents tab to browse to the FPGA Interface book for more information

about the FPGA Interface functions.

You can use Interactive Front Panel Communication to communicate

directly with the FPGA VI running on the FPGA target. You can use

Programmatic FPGA Interface Communication to programmatically

monitor and control an FPGA VI with a separate host VI.

Use the FPGA Interface functions when you target LabVIEW for Windows

or an RT target to create host VIs that wait for interrupts and control the

FPGA by reading and writing to the FPGA VI running on the R Series

device.

Note If you use the R Series device without the FPGA Module, you can use the RIO

Device Setup utility, available by selecting Start»Program Files»National Instruments»

NI-RIO»RIO Device Setup, to download precompiled FPGA VIs to the flash memory of

the R Series device. This utility is installed by the NI-RIO CD. You also can use the utility

to synchronize the clock R Series device to the PXI clock, and to configure when the VI

loads from flash memory.

LabVIEW Real-Time Module

The LabVIEW Real-Time Module extends the LabVIEW development

environment to deliver deterministic, real-time performance.

You can write host VIs that run in Windows or on RT targets to

communicate with FPGA VIs that run on the NI 781xR.You can develop

real-time VIs with LabVIEW and the LabVIEW Real-Time Module and

then download the Real-Time VIs to run on a hardware target with a

real-time operating system. The LabVIEW Real-Time Module allows you

to use the NI 781xR in RT Series PXI systems being controlled in real time

by a VI.

The NI 781xR is designed as a single-point DIO complement to

the LabVIEW Real-Time Module. Refer to the LabVIEW Help, available

by selecting Help»Search the LabVIEW Help, for more information

about the LabVIEW Real-Time Module.

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National Instruments NI 781xR User Manual Page 15