There is a possible work around. If you use the external power supply
and can keep power applied after an initial firmware download, then the
B210 will enumerate as a USB 3.0 only device.
Ron
On 07/18/2017 06:00 AM, Sirkin, Joshua F. via USRP-users wrote:
Hi, I am trying to use a B210 with an Icron USB 3.0 Spectra 3022 range
extender, found here:
http://www.icron.com/products/icron-brand/usb-extenders/fiber/usb-3-0-spectra-3022/
The device is only compatible with USB 3.0 devices and not backwards compatible
with USB 2.0. I am told by Icron tech support that because the B210 seems to
first enumerate as a USB 2.0 device, it will not work. They say that the
USB2.0/1.1 data channels are not connected on the Spectra 3022. Is there any
way to make the B210 enumerate as only a USB 3.0 device? Looking at the B200
FX3 firmware, it looks like there is a config flag for disable_usb2. Would
this do what I need? How do I build with this flag? Any help is much
appreciated.
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