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ECU Meas & Cal C api mcDAQRead help

We're looking to replace a vendor supplied package to talk to an ECU with our own, hopefully u sing labview. Communication is XCP:TCP. I load the a2l, connect to the ecu, and the daq seems to run just fine.ho

 

What I don't understand is the data filled by the mcDAQRead() which is an f64 array. If I had 3 measurements in the daq I created an array of f64 buffer[3] and it gets filled. However the daq itself contains 3 32 bit values from the ecu.

 

Am I missing something fundamental? I have to say the documentation on this package is pretty limited.

 

Any help appreciated!

 

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