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visade, not able to use instrument driver

13 vues (au cours des 30 derniers jours)
Maurizio le 24 Nov 2022
moving to visadev, and old code no longer working and can't find anything useful on line to sovle this.
my simple code:
VisaObj = visadev("TCPIP0::VEN-L000015::inst0::INSTR");
if isempty(VisaObj)
interfaceObj = tcpclient('', 1861);
clear VisaObj;
interfaceObj = VisaObj(1);
deviceObj = icdevice('lecroy_basic_12bit_driver.mdd', VisaObj);
% Connect device object to hardware.
% Execute device object function(s).
groupObj = get(deviceObj, 'Util');
invoke(groupObj, 'sendcommand', "*IDN?");
val = invoke(groupObj, 'readresponse',"%s");
the bold line gives the error:
Error using icdevice
HWOBJ must be an interface object.
previous code still working but is deprecated:
interfaceObj = instrfind('Type', 'tcpip', 'RemoteHost', '', 'RemotePort', 1861, 'Tag', '');
if isempty(interfaceObj)
interfaceObj = tcpip('', 1861);
interfaceObj = interfaceObj(1);
deviceObj = icdevice('lecroy_basic_driver.mdd', interfaceObj);
any suggestion is wellcome

Réponses (1)

Pravarthana P
Pravarthana P le 30 Nov 2022
Hi Maurizio Mastrofini,
The ‘visadev object with icdevice is not currently supported in MATLAB R2022a.
There are two possible workarounds to resolve this:
  1. Can continue using ‘visaobjects with icdevice in R2022a. Support for icdevice with ‘visadevis planned for a future release.
  2. If your instrument model has an IVI-C driver, you can use the new ividev interface instead of icdevice.
a. If a supported ividev MATLAB driver exists for the instrument’s IVI-C driver you can use ividev.
Refer to the following documentation page to check whether a supported MATLAB driver exists and for usage examples: https://www.mathworks.com/help/instrument/supported-ivi-drivers.html
b. If supported ividev MATLAB driver does not exist for the instrument’s IVI-C driver, you can use ividev with the class compliant driver (IviScope, IviFgen etc) and the instrument’s IVI-C driver.
To use option b, the following setup has to be followed:
1. Install NI-VISAand IVI Complicance Package (IVI CP), this can be done simply by installing the "Instrument Control Toolbox Support Package for National Instruments VISA and ICP Interfaces" support package from Add-On Explorer.
2. Install Instrument Control Toolbox Support Package for IVI and VXIplug&play Drivers to get the class compliant “IviDCPwr” MATLAB Driver.
3. Install “hp66xxa” IVI-C driver for the DC Power supply 'HP 6654A'. The “hp66xxa” driver is authored by NI and you can download it from their weblink below -- use the LabWindows/CVI version link inside.
4. Reboot computer
If your instrument model has an IVI-C driver and if you use ividev, follow the below steps:
% Check if IVI-C driver for DC Power Supply is installed
Follow the documentation link for ‘iviconfigurationstore’ steps
Kindly refer to the following links to get more information on "ividev":
Hope this information helps you!




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