Agilent Technologies Infiniium 8000A, Руководство программиста

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30-12
Waveform Commands
DATA? Example for Analog Channels
DATA? Example for Analog Channels
The following C example shows how to transfer both BYTE and WORD
formatted waveform data for analog channels to a computer. There is a file on
the Infiniium Oscilloscope Example Programs disk called readdata.c in the c
directory that contains this program.
/* readdata. c */
/* Reading Byte and Word format Example. This program demonstrates the order of
commands suggested for operation of the Infiniium oscilloscope by LAN or GPIB.
This program initializes the scope, acquires data, transfers data in both
the BYTE and WORD formats, converts the data into voltage and time values,
and stores the data on the PC as time, word voltage values, and byte
voltage values in a comma-separated file format. This format is useful
for spreadsheet applications. It assumes a SICL GPIB interface card exists
as 'hpib7' and an Infiniium oscilloscope at address 7. It also requires a
waveform connected to Channel 1.
*/
#include <stdio.h> /* location of: printf() */
#include <stdlib.h> /* location of: atof(), atoi() */
#include <string.h> /* location of: strlen() */
#include <sicl.h>
/* Prototypes */
int InitIO( void );
void WriteIO( char *buffer );
unsigned long ReadByte( char *buffer, unsigned long BytesToRead);
unsigned long ReadWord( short *buffer, unsigned long BytesToRead);
void ReadDouble( double *buffer );
void CloseIO( void );
void AcquireData( void );
void GetVoltageConversionFactors( double *yInc, double *yOrg );
void GetTimeConversionFactors( double *xInc, double *xOrg );
void CreateTimeData( double xInc,
double xOrg,
unsigned long AcquiredLength,
double *TimeValues );
void ConvertWordDataToVolts( short *byteData,
double *byteVolts,
unsigned long AcquiredLength,
double yInc,
double yOrg );