Agilent Technologies N5183A MXG, E8663B Programming Examples Gpib Programming Interface Examples

Programming Examples

GPIB Programming Interface Examples

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

getch();

viPrintf(vi, "*CLS\n");// Clears signal generator status byte

viPrintf(vi, "STAT:OPER:NTR 8\n");// Sets the Operation Status Group // Negative Transition Filter to indicate a // negative transition in Bit 3 (Sweeping)

//	which will set a corresponding event in // the Operation Event Register. This occurs // at the end
of	a sweep.

viPrintf(vi, "STAT:OPER:PTR 0\n");// Sets the Operation Status Group // Positive Transition Filter so that no

//positive transition on Bit 3 affects the // Operation Event Register. The positive // transition occurs at the start of a sweep.

viPrintf(vi,	"STAT:OPER:ENAB 8\n");//	Enables Operation Status Event Bit 3 // to report the event to
Status Byte	// Register Summary Bit 7.
viPrintf(vi,	"*SRE 128\n");// Enables	Status Byte Register Summary Bit 7

//The next line of code indicates the // function to call on an event

viStatus = viInstallHandler(vi, VI_EVENT_SERVICE_REQ, interupt, rdBuffer);

//The next line of code enables the // detection of an event

viStatus = viEnableEvent(vi, VI_EVENT_SERVICE_REQ, VI_HNDLR, VI_NULL);

viPrintf(vi, "FREQ:MODE LIST\n");// Sets frequency mode to list viPrintf(vi, "LIST:TYPE STEP\n");// Sets sweep to step viPrintf(vi, "LIST:TRIG:SOUR IMM\n");// Immediately trigger the sweep viPrintf(vi, "LIST:MODE AUTO\n");// Sets mode for the list sweep viPrintf(vi, "FREQ:STAR 40 MHZ\n"); // Start frequency set to 40 MHz viPrintf(vi, "FREQ:STOP 900 MHZ\n");// Stop frequency set to 900 MHz viPrintf(vi, "SWE:POIN 25\n");// Set number of points for the step sweep viPrintf(vi, "SWE:DWEL .5 S\n");// Allow .5 sec dwell at each point viPrintf(vi, "INIT:CONT OFF\n");// Set up for single sweep viPrintf(vi, "TRIG:SOUR IMM\n");// Triggers the sweep

viPrintf(vi, "INIT\n"); // Takes a single sweep printf("\n");

//While the instrument is sweeping have the

//program busy with printing to the display.

//The Sleep function, defined in the header

//file windows.h, will pause the program

//operation for .5 seconds

while (sweep==1){ printf("*"); Sleep(500);} printf("\n");

//The following lines of code will stop the

//events and close down the session

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