Configure USB-6251 Full Speed vs High Speed?

[sambady929]

I see that the USB-6251 can run in Full-Speed or High-Speed mode. Is this something I can configure in the NI-DAQmx API, or is this automatically decided by the USB host? Haven't been able to find anything in the reference pages one way or another.

[jordans · Accepted solution]

Hello sambady929,

The speed that the spec sheet is referring to is the speed of your USB bus. If you connect to a High-Speed USB bus the device will operate at High-Speed. However, if you connect to a Full-Speed bus, the device will be limited to the max speed of the Full-Speed bus. 

It is not a configurable setting because it is a function of the USB hardware you are connected through. 

Hope this helps.

[sambady929]

Great thanks!