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This example program sends and receives SPI packages using HSDIO Hardware (654x).
This example program was made from shipped examples of NI-HSDIO driver (Dynamic Generation and Acquisition-Source Synchronous.vi) and SPI Digital Waveform Library.
Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.
The link to SPI Digital Waveform Library http://www.ni.com/example/31163/en/ just points back here.
Where can I download the SPI Digital Waveform Library?