> So the question is: Is it possible to modify something ins the firmware in
> order to establish only USB 3.0 connections?

The problem is that there is no firmware when you first plug it :)
It relies on the FX3 boot rom to download the code into USB and this
USB boot mode only supports USB 2.0.

Now there is a I2C eeprom connected and the boot mode is set to look
for a boot image in I2C first. But that I2C eeprom is way too small to
store the full USRP firmware, but in theory you could write a custom
USB3 bootloader that allows you to download code in USB3 mode and then
modify UHD appropriately for this new loading method.



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