Agilent Technologies Model A.08.xx manual

Programming Examples

Status Register–Determine When a Measurement is Done

printf("Could not open a session to GPIB device at address 18!\n"); exit(0);

}

/*Clear the instrument*/ viClear(viESA);

/*Reset the instrument*/ viPrintf(viESA,"*RST\n");

/*Clear the status byte of the instrument*/ viPrintf(viESA,"*CLS\n");

/*Display the program heading */

printf("\n\t Status Register - Determine When a Measurement is Done \n\n" );

/*Put the analyzer in a single sweep*/ viPrintf(viESA,"INIT:CONT 0 \n");

/* Check for the instrument model number and route the 50MHz-signal accordingly*/ Route50MHzSignal();

/*Set the analyzer to 50MHz center frequency*/ viPrintf(viESA,"SENS:FREQ:CENT 50 MHz\n");

/*Set the analyzer resolution bandwidth to 300 Khz*/ viPrintf(viESA,"SENS:BAND:RES 300 KHz\n");

/*Set the analyzer to 10MHz span*/ viPrintf(viESA,"SENS:FREQ:SPAN 10MHz\n");

/*Trigger a sweep*/ viPrintf(viESA,"INIT:IMM\n");

/*Make sure the previous command has been completed*/ viQueryf(viESA, "*OPC?\n", "%d", &lOpc);

if (!lOpc)

{

printf("Program Abort! error ocurred: last command was not completed!\n"); exit(0);

}

/* Set the service request mask to assert SRQ when either a measurement is completed or an error message has occurred.*/

viPrintf(viESA,"*SRE 96\n"); viPrintf(viESA,"*ESE 35\n");

/* Configure the computer to respond to an interrupt*/

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