Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 95
Programming Examples
GPIB Programming Interface Examples
#include "windows.h"
#include <conio.h>
#define MAX_CNT 1024
int sweep=1; // End of sweep flag
/* Prototypes */
ViStatus _VI_FUNCH interupt(ViSession vi, ViEventType eventType, ViEvent event, ViAddr addr);
int main ()
{
ViSession defaultRM, vi;// Declares variables of type ViSession
// for instrument communication
ViStatus viStatus = 0;// Declares a variable of type ViStatus
// for GPIB verifications
char rdBuffer[MAX_CNT];// Declare a block of memory data
viStatus=viOpenDefaultRM(&defaultRM);// Initialize VISA session
if(viStatus < VI_SUCCESS){// If problems, then prompt user
printf("ERROR initializing VISA... exiting\n");
printf("\n");
return -1;}
// Open session to gpib device at address 19
viStatus=viOpen(defaultRM, "GPIB::19::INSTR", VI_NULL, VI_NULL, &vi);
if(viStatus){ // If problems then prompt user
printf("ERROR: Could not open communication with
instrument\n");
printf("\n");
return -1;}
viClear(vi); // Clears the signal generator
viPrintf(vi, "*RST\n"); // Resets signal generator
// Print program header and information
printf("** End of Sweep Service Request **\n");
printf("\n");
printf("The signal generator will be set up for a step sweep mode
operation.\n");
printf("An ’*’ will be printed while the instrument is sweeping. The end of
\n");
printf("sweep will be indicated by an SRQ on the GPIB and the program will
end.\n");
printf("\n");
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