Agilent Technologies user service Chapter, Agilent E1441A Application Information

/* Set the output amplitude to be set for 50 ohm load. */ err=viPrintf(funcgen, "OUTPut:LOAD 50\n");

if(err != VI_SUCCESS) err_handler(funcgen, err);

/* configure the E1441A to output a 5 Vp-p, 5 kHz sine wave */

/* with a 2.5V offset*/ err=viPrintf(funcgen, "SOURce:APPLy:SIN 5000, 2, 2.5\n"); if(err != VI_SUCCESS) err_handler(funcgen, err);

/* set		the burst		modulation source,			set 10,000	burst cycles,	*/
/* a 270			degree starting phase,			a 1	Hz burst rate, enable		*/
/*	the	burst state,			and output the burst when a negative				*/
/*	going		trigger	is	received on	"EXT TRIG" BNC		connector	*/

err=viPrintf(funcgen, "SOURce:BM:SOURce INTernal\n"); /* counted burst mode */ if(err != VI_SUCCESS) err_handler(funcgen, err);

err=viPrintf(funcgen, "SOURce:BM:NCYCles 10000\n"); /* 10000 cycle bursts */ if(err != VI_SUCCESS) err_handler(funcgen, err);

err=viPrintf(funcgen, "SOURce:BM:PHASe 270\n"); /* 270 degree phase */ if(err != VI_SUCCESS) err_handler(funcgen, err);

err=viPrintf(funcgen, "TRIGger:SOURce EXTernal\n"); /* "EXT" trig BNC */ if(err != VI_SUCCESS) err_handler(funcgen, err);

err=viPrintf(funcgen, "TRIGger:SLOPe NEG\n"); /* "trigger on negative edge */ if(err != VI_SUCCESS) err_handler(funcgen, err);

err=viPrintf(funcgen, "SOURce:BM:STATe ON\n"); /* enable burst mode */ if(err != VI_SUCCESS) err_handler(funcgen, err);

/* Now short "EXT TRIG" BNC connector to start 2 second burst */

/* Check for system errors. */ err=viQueryf(funcgen, "syst:err?\n", "%t", buf); if(err != VI_SUCCESS) err_handler(funcgen, err); printf("System error response = %s\n\n", buf);

/* close the device session */ viClose(funcgen);

} /* end of main */

/*** Error handling function ***/

void err_handler(ViSession funcgen, ViStatus err)

{

char buf[1024] = {0}; viStatusDesc(funcgen, err, buf); printf("ERROR = %s\n", buf); return;

}

Chapter 2 Agilent E1441A Application Information 59