NI-FGEN Stream from Disk Using Win32 File IO
PrintOverview
The basic and advanced examples below show how to continuously stream new data from disk to an Arbitrary Waveform Generator while the device is generating. This example is intended to be used for generating quantities of data that are significantly larger than the onboard memory. Benchmarks with the recommended hardware below have been at 114 MB/s of data streamed from disk.
NI Recommended Hardware:
- PXI 5421 AWG
- PXI 8105/8106 controller
- Addonics eSATA 4-drive RAID (ST5X1PM-4)
- ExpressCard34 to eSATA Adapter (ADEXC34R5-2E)
Software:
- NI-FGEN 2.4.5 or above
- LabVIEW 8.0 or above
Included in this EPD are:
(Basic Version)
- niFGEN Stream from Disk Queues Win32 File IO_Basic.vi
- supporting DMA Optimization VI's
- supporting Win32 File IO VI's
(Advanced Version)
- niFGEN Stream from Disk Queues Win32 File IO.vi
- niFGEN Stream From Memory Maximum Transfer Rate.vi
- supporting DMA Optimization VI's
- supporting Win32 File IO VI's
- file write/read benchmark utility VI's
Requirements
Filename: ni-fgen-basic.zip
Software Requirements
Application Software: LabVIEW Professional Development System 8.0
Hardware Requirements
Hardware Group: Signal Source (AWG/FG/AO)
Hardware Model: PXI-5421
Reader Comments | Submit a comment »
Legal
This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).