Re: [Discuss-gnuradio] USRP N210 - No device found

[Neel Pandeya]

Hello Harold:

Make sure that UHD can see the USRP. Try running "uhd_usrp_probe" with no command-line arguments.

Do you have a firewall running on your system? You can check with "sudo iptables -L". If you are running one, then try shutting it down, and re-running your flowgraph.

You can safely shut down your firewall with the following commands:
sudo iptables -P INPUT ACCEPT
sudo iptables -P OUTPUT ACCEPT
sudo iptables -F

--Neel

On Thu, Aug 28, 2014 at 6:26 PM, haroldmk <address@hidden> wrote:

Hello everyone,

I am using USRP for the first time. I am trying to replicate the FM Receiver
found on Ettus' YouTube channel named as: "How To Build an FM Receiver with
the USRP in Less Than 10 Minutes". The .grc flow is generated ok, but when I
execute the flow graph I get the message:
-----------------------------------------------------
RuntimeError: LookupError: KeyError: No devices found for ----->
Device Address:
    addr: 192.168.10.2
-----------------------------------------------------

At the beginning I just connected the USRP to the laptop, the Ethernet was
set as address 192.168.10.2 (mask 255.255.255.0 and gateway 0.0.0.0) and I
left blank the "Device Address" on the "UHD: USRP Source" and I got the
message:
-----------------------------------------------------
RuntimeError: LookupError: KeyError: No devices found for ----->
Empty Device Address
-----------------------------------------------------

I checked that my laptop is able to ping the device using ping 192.168.10.2
on the terminal. Then I changed the "Device Address" to "addr=192.168.10.2"
and got the message showed at the beggining

-----------------------------------------------------
RuntimeError: LookupError: KeyError: No devices found for ----->
Device Address:
    addr: 192.168.10.2
-----------------------------------------------------

As my laptop is able to connect to the USRP I guess the problems comes from
how I set the  "UHD: USRP Source" block or the GNU Radio itself. I am
working on Ubuntu 14.04 (installed it today) and GNU Radio Companion
3.7.2.1.

Am I missing something?.
Thanks in advance for your help.




--
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