How to achieve high usb data rate with cRIO-9022?

Hi all,
I read the datasheet of NI-9022 and know that USB data rate can be 480Mb/s.
I want to transfer data with rate 3.6MB/s which is much slower than the spec, but the result is time out error.
I check my FPGA and RT code by save to RT disk and the result is pass. So I think my code should be correct.
Is that because the USB driver not installed into RT?
Should I install the USB driver into RT?
Or is there any other issue I haven't find?
Thanks a lot.

According to this document: Data Storage Options for CompactRIO, depending on many conditions, such as complexity of processor
requirements, USB data can be transferred off the controller at
approximately 700 KB/s.
Also, you don't need a driver to get a USB mass storage device to work on the cRIO. Have a look at this document:
Utilizing Features of the USB Port on My cRIO-901x or My cFP-22xx Controller
Not sure if these issues are causing timeout errors. What happens when you transfer data at lower speeds? Do you get timeout errors then?
Adnan Zafar
Certified LabVIEW Architect
Coleman Technologies

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Attachments:
NI Vision Acquisition Express Error for NI cRIO 9022.JPG ‏39 KB
IMAQ and dx Modules Installed on my NI cRIO 9022 hardware(No NI Vision Acquisition 2010 SP1).JPG ‏82 KB
NI Vision Acquisition Express NO Error for NI cRIO 9022.JPG ‏48 KB

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