USRP under flow issue.

[yosefzh]

Hello.
im using a USRPX310 on a windows device , i don't know if there is a easier way to do this on windows but i tried and failed.

so i downloaded a linux virtual machine and used it to work after solving multiple errors it runs the program, but it spams UUUUUUUUU
an under-flow issue i don't know how to solve it , as you can see here, then i tried the other way using Tx sample from example but it didn't work also for some reason when i looked to the file sample from example was empty so i don't know how should i run it