Hello, I installed :
http://www.ni.com/download/ni-visa-5.2/3337/en/
https://www.ni.com/lwcvi/download/
https://www.rohde-schwarz.com/driver/smc100a/ install driver VXIplug&play x86 driver rssmb
Created an example in which I get the error: viOpen () -1073807343.
tested with the mingw32 compiler, mingw64, msvc2017 64 bit
ViSession defaultRM; ViSession instr; ViUInt32 numInstrs; ViFindList findList; ViUInt32 retCount; ViUInt32 writeCount; ViStatus status; char instrResourceString[VI_FIND_BUFLEN]; unsigned char buffer[100]; char stringinput[512]; int i; status=viOpenDefaultRM (&defaultRM); if (status < VI_SUCCESS) { qDebug() << "Could not open a session to the VISA Resource Manager!"; return; } status = viFindRsrc (defaultRM, (ViString)"TCPIP?*INSTR", &findList, &numInstrs, instrResourceString); if (status < VI_SUCCESS) { qDebug() << "An error occurred while finding resources.\nHit enter to continue."; fflush(stdin); getchar(); viClose (defaultRM); return; } for (i=0; i < numInstrs; i++) { if (i > 0) viFindNext (findList, instrResourceString); status = viOpen (defaultRM, instrResourceString, VI_NULL, VI_NULL, &instr); if(!QString(instrResourceString).contains("192.168.0.202")) continue; while(status < VI_SUCCESS) { status = viOpen (defaultRM,instrResourceString, VI_NULL, VI_NULL, &instr); qDebug() << "viOpen" <<status<< instrResourceString; } char * cmmand = (ViString)"*IDN?\n"; status = viPrintf (instr, cmmand); if (status < VI_SUCCESS) { qDebug() << "Error writing to the device i.\n"; status = viClose (instr); continue; } status = viScanf(instr, (ViString)"%t", buffer); if (status < VI_SUCCESS) qDebug() << "Error reading a response from the device i.\n"; else qDebug() << "VI_SUCCESS"; status = viClose (instr); } status = viClose (defaultRM);
if i run "ni max" device and interface" -> network devices -> add network devicec then the error disappears (VI_SUCCESS).
Help please