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Asynchronous I/O in IVI-COM driver

Question asked by akyozh on Aug 23, 2011
Latest reply on Oct 19, 2011 by tabbott
The V2820A instrument can be controlled from LXI connection with V2820A RF Vector Signal Analyzer IVI-COM Driver. Under ZeroSpan mode, the IAgilent28XXAcquisition::MeasureIQ method is used to trigger a single sweep operation and retrieve the waveform data from the instrument. Because the bit rate of the LXI connection is quite slow, it will take about 5 minutes to transfer a waveform data with 3 seconds duration. Obviously, five minutes are too long for a foreground operation of application. Although this process can be operating in background using multithread method, the time duration of processing is not easy to estimate.

Is it possible to perform this operation using asynchronous I/O method, and got the transferring progress of waveform data?

Very appreciate for any reply.