Re: [Discuss-gnuradio] Switching of UHD/Raw-Ethernet Driver

[Josh Blum]

On 11/17/2010 11:27 PM, Bishal Thapa wrote:
> I have two small questions...
>
> 1. I successfully installed UHD (gr-uhd) following the guide "
> http://www.ettus.com/uhd_docs/manual/html/usrp2.html";
>       But now, I want to be able to switch back and forth between the UHD and
> Raw-Ethernet Driver. Do I need to uninstall the UHD, or just using (burning
> the SD card) the respective firmwares would do the trick? I just wanted to
> make sure that when i am thinking that i am using the raw-ethernet driver, I
> am not in anyway getting hampered by UHD's presence. Thank you for your
> response.

Just swap the contents of the SD card.

> 2. I am using XCVR2450 with USRP2. I initially just wanted to find out which
> antenna (J1 or J2 -- connected to RF2 and RF1 in my USRP2 respectively), was
> defined to be RX and which one to be TX? I found out from a file
> "db_xcvr2450.cc" that J1 was defined to be RX and J1-TX, however with my
> spectrum analyzer I found the contrary to be true. Is there an easy way to
> check, and be able to set J1 or J2 to Rx or Tx in Python? I did search the
> threads and couldn't find satisfying answer.

It depends how you set the antennas:
http://www.ettus.com/uhd_docs/manual/html/dboards.html#xcvr-2450

-Josh