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