HP 8-Channel 196 kSa/sec Digitizer plus DSP E1433A manual Introduction

HP E1433A User's Guide

The C-Language Host Interface Library

Introduction

The Host Interface Library for the HP E1433A is a set of functions that allow you to program the register-based HP E1433A at a higher level than register reads and writes. The library allows groups of HP E1433As to be set up and programmed as if they were one entity.

The HP E1433A uses the same software as the HP E1432A 16 Channel 51.2 kSa/sec Digitizer plus DSP.

Two version of the Host Interface Library are available. One is the HP-UX C-Language Host Interface Library which uses SICL (the Standard Instrument Interface Library) to communicate to the HP E1433A hardware. The other is the VXIplug&play Library which communicates with the hardware using the VXIplug&play standard. This chapter covers the C-Language version. If you are using the VXIplug&play version, you will not need this chapter. Instead, see the chapters titled “Getting Started With the HP E1433A” and “Using the HP E1433A”

The library includes routines to set up and query parameters, start and stop measurements, read and write data, and control interrupts. Routines to aid debugging and perform low-level I/O are also included.

For information on diagnostics see the chapter titled “Troubleshooting the HP E1433A.”

Almost all functions in this library return 0 if they complete successfully and a negative error number if there is a problem. The return value of the function should always be checked and appropriate action taken for non-zero values. See the on-line man pages for more information on error messages.

4-2