Programming Guide

SIGLENT
70 SVA1000X Programming Guide
Set lib file:project---properties---Linker---Command Line---Additional Options: visa32.lib
Include visa.h file: In the projectname.cpp file:
#include <visa.h>
3、 Add codes:
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;
ViSessioninstr;
ViUInt32numInstrs;
ViFindListfindList;
ViStatus status;
char instrResourceString[VI_FIND_BUFLEN];
unsigned char buffer[100];
int i;
/** First we must call viOpenDefaultRM to get the manager
* handle. We will store this handle in defaultRM.*/
status=viOpenDefaultRM (&defaultRM);
if (status<VI_SUCCESS)
{
printf ("Could not open a session to the VISA Resource Manager!\n");
return status;
}