Справочник Пользователя для National Instruments NI 781xR

Скачать
Страница из 48
Chapter 1
Introduction
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.