GPIB-USB transferring speed problem

[vgbraymond]

Hi Matt,

  I tried to set it to high priority and I also tried time critical, however both don't improve the problem. I still see from spy that time separation. Does the execution system settings right next to the Priority in the VI properties matter? What else can I try? If I use C code to interface with the GPIB converter, would the performance be improved? Though I prefer to improve it without using C, otherwise that might be quite time-consuming for me to start this work...

Raymond

[Dennis_Knutson]

Calling the exact same functions from c is not going to make a difference. You would have to move to a real time os.

Why is such determinism even an issue? GPIB instruments don't care.

[vgbraymond]

I am just hoping to optimize time for the GPIB I/O to make my system more efficient in time. I remember once I can approach ~100 acq/second (in WinXP, but now server 2003), but I just cannot reproduce the same result, so I kept asking about that.