Agilent Technologies N5181A/82A, N5183A Programming Examples Gpib Programming Interface Examples

Programming Examples

GPIB Programming Interface Examples

//set the start and stop frequency for the sweep stat = viPrintf(inst, "FREQ:START 1GHZ\n"); stat = viPrintf(inst, "FREQ:STOP 2GHZ\n");

//setup dwell per point

stat = viPrintf(inst, "SWEEP:DWELL %e\n", dwell); // setup number of points

stat = viPrintf(inst, "SWEEP:POINTS %d\n", npoints);

//set interface timeout to double the expected sweep time

//sweep takes (~15ms + dwell) per point * number of points

//the timeout should not be shorter then the sweep, set it

//longer

long timeoutMS = long(2*npoints*(.015+dwell)*1000);

// set	the VISA timeout
stat =	viSetAttribute(inst, VI_ATTR_TMO_VALUE, timeoutMS);
// set	continuous trigger mode off
stat =	viPrintf(inst, "INIT:CONT OFF\n");
// turn list sweep on
stat =	viPrintf(inst, "FREQ:MODE LIST\n");

int sweepNo = 0; while(intCounter>0 )

{

//start the sweep (initialize) stat = viPrintf(inst, "INIT\n"); printf("Sweep %d started\n",++sweepNo);

//wait for the sweep completion with *OPC? int res ;

stat = viPrintf(inst, "*OPC?\n"); stat = viScanf(inst, "%d", &res);

//handle possible errors here (most likely a timeout)

//err_handler( inst, stat );

puts("Sweep ended");

//delay before sending next INIT since instrument

//may not be ready to receive it yet

Sleep(15);

intCounter = intCounter-1;

}

printf("End of Program\n\n");

Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 87