Example Code

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VirtualBench All-in-One Instrument

コードとドキュメント

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Description

Overview
This example automates the digital input output (DIO) channels to master SPI commands and performs a read.

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Steps to Run Program

1. Download the example program on the right under downloads.
2. In LabVIEW software, open the program by going to File » Open… and navigating to the file.
3. Connect the VirtualBench device.
4. Select the correct VirtualBench bus channel from the pull-down menu of the VirtualBench Bus Channel control. Set the clock rate, clock polarity, clock phase, and chip select polarity; specify the data to write
5. Click the Run button to write and read data.
6. The data acquired will display in the Results indicator.

Program Explained

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- Initialize Session
  - The VirtualBench bus channel is passed into the SPI Initialize VI to initialize a new session on the SPI engine for the device.
  - A Boolean true constant is also passed into the VI to reset the device to default values.
- Configure Instrument
  - Instrument and error information are passed into the SPI Configure Bus VI along with the clock rate, clock polarity, clock phase, and chip select polarity.
- Perform Operation
  - Instrument and error information are passed to the SPI Write Read VI.
  - The data to write is also passed into the VI, and then the VI performs a write followed by a read.
  - The VI then outputs the data read to the indicator on the front panel.
- Close Session
  - The instrument and error information are passed to the SPI Close VI. This closes the session and deallocates any resources for the next time a session is created with the instrument.
- Handle Errors
  - Finally, the error information is passed into the Simple Error Handler VI. If an error has occurred, a dialog box will open to notify the user.

Additional Resources

- Read more about automating VirtualBench with LabVIEW
- Learn more about VirtualBench

VirtualBench Examples

- Single Instruments
- Multiple Instruments

NIコミュニティのサンプルコード交換のサンプルコードは、MIT Licenseによりライセンス供与されています。