什么是SICL，什么是VISA

What is SICL?  Agilent Standard Instrument Control Library (SICL) is an I/O Library developed by Agilent (HP) that is portable across many interfaces and systems.  SICL is a modular instrument communications library that works with a variety of computer architectures, I/O interfaces, and operating systems.  Applications written in C/C++ or Visual Basic using this library can be ported at the source code level from one system to another with no (or very few) changes. SICL uses standard, commonly used functions to communicate over a variety of interfaces.  For example, a program written to communicate with a particular instrument on a given interface can also communicate with an equivalent instrument on a different type of interface.

What is VISA?  Agilent Virtual Instrument Software Architecture (VISA) is an I/O Library designed according to the VXIplug&play System Alliance that allows software developed from different vendors to run on the same system. Use VISA if you want to use VXIplug&play instrument drivers in your applications, or if you want the I/O applications or instrument drivers that you develop to be compliant with VXIplug&play standards.

可以使用iosetup来对相关的设备进行设置，在设置完成后，可以使用iclear使得设置生效。

refs：http://www.techsoft.de/documents/sicl_visa.html