Software Timed Tristate Reference Example for 6533/6534
PrintOverview
The program shows how to tristate lines on the 6533/6534 after output then read back in on the same lines.
**The accompanying code represents a very specific use case for NI products. For more general examples, please refer to ni.com/examples, the LabVIEW Example Finder, or the NI driver help files that come with every NI driver.
Downloads
Filename: performtristate6533.vi
Requirements: View
The NI-6533/6534 does not support a hardware timed tristate option, but it is often necessary to do software timed tristate on these lines. This program shows how to tristate the lines on these cards for a port after DO, then perform DI the same lines. The program allows the user to specify an external clock or the onboard clock of the card. It also allows the user to create data to write on the DO lines.
To run the application, set the Lines control on the front panel to match those on the card in use. Currently the program writes a small subset of values, so the input sample clock has a small number of samples to read in. This can be configured to fit any user's application.
Requirements
Filename: performtristate6533.vi
Software Requirements
Application Software: LabVIEW Base Development System 8.5
Language(s): LabVIEW
Hardware Requirements
Hardware Group: High-Speed Digital I/O
Hardware Model: PCI-6533
Driver: NI-DAQmx
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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/).