Agilent 33120A User's Guide

Chapter 6 Application ProgramsDownloading an Arbitrary Waveform over GPIB. . . continued300 ! Download data points to volatile memory from array310 !320 DISP "Downloading Arb..."330 OUTPUT @Fgen;"DATA VOLATILE,";Waveform(*)340 DISP "Download Complete"350 !360 OUTPUT @Fgen;"DATA:COPY PULSE, VOLATILE" ! Copy arb to non-volatile memory370 OUTPUT @Fgen;"FUNC:USER PULSE" ! Select the active arb waveform380 OUTPUT @Fgen;"FUNC:SHAP USER" ! Output the selected arb waveform390 !400 OUTPUT @Fgen;"OUTP:LOAD 50" ! Output termination is 50 ohms410 OUTPUT @Fgen;"FREQ 5000;VOLT 5" ! Output frequency is 5 kHz @ 5 Vpp420 !430 ENDC / GPIB (Program 3)/***************************************************************************This program uses the arbitrary waveform function to download andoutput a square wave pulse with a calculated rise time and fall time.The waveform consists of 4000 points downloaded over the GPIBinterface as ASCII data.***************************************************************************/#include /* Used for printf() */#include /* Used for malloc(), free(), atoi() */#include /* Used for strlen() */#include /* Header file from GPIB Command Library */#define ISC 7L /* Assign GPIB select code */#define ADDR 710L /* Set GPIB address for function generator *//* Function Prototypes */void rst_clear(void);void get_data(void);void download_data(float *waveform, int num_points);void out_waveform(void);void command_exe(char *commands[], int length);void check_error(char *func_name);/**************************************************************************/256