This library implements a simple SPI interface for LabVIEW.

The library can be used with any NI PXI Digital I/O Module with Hardware-Timed Digital I/O.

Its main features are:

• Transmission of data from a U8 Array by the MOSI signal.
• Reception of data from the SOMI signal as U8 Array.
• Control of the CS signal.
• Variable length of bytes transmitted/received determined by the length of the U8 Array MOSI data.
• Variable data rate.

The SPIVI library is distributed under the terms of the MIT License.

The VIs are written in LabVIEW 2016.

The library can be used with any NI PXI Digital I/O Module with Hardware-Timed Digital I/O. Note: I have only tested it with a PXIe-6537 module.

It needs the "SPI Digital Waveform Library (SDW)" distributed by National Instruments. You can download an install it from https://www.ni.com/example/31163/en/.

It needs the NI-DAQmx drivers distributed by National Instruments. You can download an install it from https://sine.ni.com/nips/cds/view/p/lang/es/nid/10181/.

This library is based on concepts extracted from "Serial Protocol Communication Reference Design for Digital Waveform Devices", available at https://www.ni.com/example/31200/en/. This reference design isn´t necessary to use the SPIVI library.

You can copy all the files to a folder named "SPIVI" inside your project folder and add the file "SPIVI.lvlib" to your LabVIEW project.

There is a sample project demostrating the use of the library in the folder "Samples".