labview开发 usb接口通信 USB Instrument Control Tutorial Overview This tutorial is meant as a starting point for using NI-VISA to communicate with a USB device. It is not intended as a starting point for learning about USB architecture or the various protocols used in USB communication. After reading this tutorial, you should be able to install a USB device and use NI-VISA to communicate with that device, as long as you understand the device communication protocol. 1. USB and VISA Background VISA is a high-level API used to communicate with instrumentation buses. It is platform independent, bus independent, and environment independent. In other words, the same API is used regardless of whether a program is created to communicate with a USB device with LabVIEW on a machine running Wi……