Problem with FW and FPGA images

GNU Radio
1

Hello everyone,

The last 2 days I am dealing with a problem of using gnuradio with
USRP2s.

I have successfully installed both gnuradio and uhd using the
build-gnuradio scipt into 3 brand new core i-7 laptops.

However, after using the default usrp2_card_burner gui for burning the
firmware and fpga images into a Kingston 2GB SD card provided with the
USRP2 I cannot find the USRP2 device neither when using the command
uhd_find_devices nor by doing ping in 192.168.10.2. Sometimes USRP2
appears
to be found but afterwards the communication is compromised. I have also
tried disabling the firewall of ubuntu but nothing changed.

Are there any new images for UHD_003.004.001-27-g93d4a16f revision in
the
main branch that I am not aware of?

Thanks,
George

2

On 04/12/2012 05:15 PM, George S. wrote:

uhd_find_devices nor by doing ping in 192.168.10.2. Sometimes USRP2 appears
to be found but afterwards the communication is compromised. I have also
tried disabling the firewall of ubuntu but nothing changed.

Are there any new images for UHD_003.004.001-27-g93d4a16f revision in the
main branch that I am not aware of?

Few things I can think of:

  1. Do you see this boot sequence on power up?
    USRP2 boot LED sequence - YouTube

  2. Do you see the green LED on the ethernet jack go on?

  3. The serial port can also help:
    USRP Hardware Driver and USRP Manual: USRP2 and N2x0 Series

  4. ethernet configured? just a thought:
    USRP Hardware Driver and USRP Manual: USRP2 and N2x0 Series

-Josh

3

Hi Josh,

The sequence of the LEDs is D and F coming green just in the same way as
the video apart from the B led where I cannot see why to come green?

The ethernet is properly configured.

The green led on the ethernet also goes on. There is no way that the
ethernet jack is faulty or sth like that as the same usrp2 with the same
settings is just working fine on another laptop with UHD_003.004.000 -
325-
g7e296167 revision.

I don’t really know what’s the problem, may be I will try solving it by
monitoring the serial output.

The thing that really attracted my attention is that sometimes there is
a
connection and after just typing uhd_find_devices the connection is
lost.

Any other ideas guys?

Thanks again,
George

4

Hi Josh,

I think you may be right, but neither ifconfig eth0 nor dmesg reports an
error.

Furthermore, the drivers and operating systems running in both laptops
are
the same. It’s UBUNTU 11.04 in some Toshiba Satellite laptops.

Any other ideas guys?

Thanks so much for your help.
George

5

On 04/12/2012 11:12 PM, George S. wrote:

g7e296167 revision.

I don’t really know what’s the problem, may be I will try solving it by
monitoring the serial output.

The thing that really attracted my attention is that sometimes there is a
connection and after just typing uhd_find_devices the connection is lost.

I think you have isolated the problem. Sounds like the laptop has a
buggy ethernet port/ethernet driver. When the connection is lost:

Do you have to run ifconfig ethx … again?

Does ifconfig ethx report errors?

Does dmesg report errors?

-Josh