Re: [Discuss-gnuradio] uhd_fft.grc: fifo ctrl timed out looking for acks

[Maria Christopoulou]

Hello,

The output of "lspci|grep -i ether" is:

00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V

02:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10) (this is eth0)

I am doing the following: sudo ifconfig eth0 192.168.10.1 netmask 255.255.255.0

I have also configured /etc/network/interfaces like this:

# interfaces(5) file used by ifup(8) and ifdown(8)

auto lo

iface lo inet loopback

auto eth0

iface eth0 inet static

address 192.168.10.1

netmask 255.255.255.0

gateway 0.0.0.0

However, in the Network Connections menu, the IPv4 settings are:

Address: 192.168.10.3

Netmask: 255.255.255.0

Gateway: 0.0.0.0

and the Method is set to "Manual", for static IP addressing.

It seems that the Network Manager doesn't take into account the ifconfig command.

Do you think that this could cause the problem?

Regarding the netmask of the USRP, it seems like a default value. Could it be related to this?

Thank you,

Maria

2016-02-23 8:41 GMT+02:00 Marcus Müller <address@hidden>:

Indeed! Thanks for jumping in!

Am 23. Februar 2016 00:04:10 MEZ, schrieb Gregory Ratcliff <address@hidden>:

Marcus,

Just so that Maria doesn't get too confused, I think you meant:

192.168.10.XXX network (except .2), and configure the network manager for "static" addressing.

Greg

On Feb 22, 2016, at 4:53 PM, Marcus Müller <address@hidden> wrote:

Hello Maria,

the reason I most often encountered for this is that in the middle of operation, Ubuntu decided to reconfigure the network interface. Make sure you set the network interface to a valid address from the 19.168.10.XXX network (except .2), and configure the network manager for "static" addressing.

also, for some reason, your USRP's subnet mask as reported by uhd_usrp_probe seems wrong; it should be something like 255.255.255.0, not 255.255.255.255.

By the way, what is your network card? (you can find out by doing "lspci|grep -i ether", usually)

Best regards,
Marcus

On 02/22/2016 10:36 PM, Maria Christopoulou wrote:

Hello,

I have the following system configuration:

Ubuntu 14.04, 64-bit, 3.17.0-lowlatency

Gnuradio v3.7.8

and a USRP N2930, with UHD_003.009 version installed.

The script uhd_find_devices works properly and the output of uhd_usrp_probe is the following:

https://drive.google.com/file/d/0B9y0kqNk6AFgNnpFLWcwZ2E4WDQ/view?usp=sharing

When I execute the uhd_fft.grc flowgraph, the program runs for a few seconds but suddenly freezes, showing the following output in the terminal:

https://drive.google.com/file/d/0B9y0kqNk6AFgY2NpdW0yS2sxMDA/view?usp=sharing

Could you please give me some guidelines to solve this issue?

Best regards,

Maria Christopoulou

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

--
Sent from my Android device with K-9 Mail. Please excuse my brevity.

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio