Agilent Technologies Infiniium 8000A, Programmer'S Reference Manual

Page: 98 / 934

6- 4
Sample Programs
Sample C Programs
Sample C Programs
Segments of the sample programs “init.c” and “gen_srq.c” are shown and
described in this chapter.
init.c - Initialization
/* init. c */
/* Command Order Example. This program demonstrates the order of commands
suggested for operation of the 8000A oscilloscope via GPIB.
This program initializes the oscilloscope, acquires data, performs
automatic measurements, and transfers and stores the data on the
PC as time/voltage pairs in a comma-separated file format useful
for spreadsheet applications. It assumes a SICL INTERFACE exists
as 'hpib7' and an 8000A oscilloscope at address 7.
It also requires a waveform connected to Channel 1.
See the README file on the demo disk for development and linking information.
*/
#include <stdio.h> /* location of: printf() */
#include <stdlib.h> /* location of: atof(), atoi() */
#include "gpibdecl.h" /* prototypes, global declarations, constants */
void initialize( void ); /* initialize the oscilloscope */
void acquire_data( void ); /* digitize waveform */
void auto_measurements( void ); /* perform built-in automatic measurements */
void transfer_data( void ); /* transfers waveform data from oscilloscope to PC */
int convert_data( int, int ); /* converts data to time/voltage values */
void store_csv( FILE *, int ); /* stores time/voltage pairs to */
/* comma-separated variable file format */
The include statements start the program. The file “gpibdecl.h” includes
prototypes and declarations that are necessary for the Infiniium Oscilloscope
sample programs.
This segment of the sample program defines the functions, in order, that are
used to initialize the oscilloscope, digitize the data, perform measurements,
transfer data from the oscilloscope to the PC, convert the digitized data to time
and voltage pairs, and store the converted data in comma-separated variable
file format.
See the following descriptions of the program segments.