Agilent Technologies FS2010 Wartungshandbuch PDF herunterladen (Seite 118)

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101

110 Agilent Signal Generators Programming Guide

Programming Examples

GPIB Programming Interface Examples

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");

printf("Press Enter to continue\n");

printf("\n");

getch();

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