daq.getVendors() takes half of forever on R2015b, 32bit; createSession('nidaq') doesn't work...

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Michael Gustafson 2019-2-12

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https://ww2.mathworks.cn/matlabcentral/answers/444441-daq-getvendors-takes-half-of-forever-on-r2015b-32bit-createsession-nidaq-doesn-t-work

评论： Michael Gustafson 2019-2-14

Installed MATLAB R2015b
Installed NI-DAQmx 17.5
daqregister('nidaq') as admin
Downloaded and installed NI-DAQmx Support Package for MATLAB
Re-started MATLAB

>> tic, daq.getVendors(), toc
ans = 
Data acquisition vendor 'National Instruments':
            ID: 'ni'
      FullName: 'National Instruments'
AdaptorVersion: '3.8 (R2015b)'
 DriverVersion: '17.0.0 NI-DAQmx'
 IsOperational: true
Properties, Methods, Events
Additional data acquisition vendors may be available as downloadable support packages.
Open the Support Package Installer to install additional vendors.
Elapsed time is 93.893302 seconds.

And, of course...

>> s = daq.createSession('nidaq')
The vendor 'nidaq' is not known. Use 'daq.getVendors()' for a list of vendors.
 
>> s = daq.createSession('ni')
The vendor 'ni' is not known. Use 'daq.getVendors()' for a list of vendors.

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Michael Gustafson 2019-2-14

Success! I

uninstalled all the VISA drivers for the NI cards with 17.5,
logged in as admin,
ran MATLAB as admin and registered the nidaq card

From that point forward, things worked. Not sure that was the smartest solution, but it worked... Still takes 90 seconds to issue the first daq command, but at least I can blink lights again! I did not end up needing to update the drivers past 17.5 nor did I end up needing to download the support package. It was ALL about the VISA drivers.

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