Programming Guide

Digital Oscilloscopes Series
151
#include <visa.h>
3、Add codes:
3.1 USBTMC access code:
Write a function Usbtmc_test.
Int Usbtmc_test()
{
/* This code demonstrates sending synchronous read & write
commands */
/* to an USB Test & Measurement Class (USBTMC) instrument
using */
/* NI-VISA */
/* The example writes the "*IDN?\n" string to all the USBTMC */
/* devices connected to the system and attempts to read back */
/* results using the write and read functions. */
/* The general flow of the code is */
/* Open Resource Manager */
/* Open VISA Session to an Instrument */
/* Write the Identification Query Using viPrintf */
/* Try to Read a Response With viScanf */
/* Close the VISA Session */
/***********************************************************/
ViSessiondefaultRM;