Uhd_find_devices error

GNU Radio
1

Hello,

I have a strange problem with uhd_find_devices. I can do

[dkelly uhd]+master$ uhd_find_devices --args=“addr=192.168.10.2”
linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9

– UHD Device 0

Device Address:
type: usrp2
addr: 192.168.10.2
name: dk-usrp2
serial: 00:50:c2:85:30:52

fine, as you can see. But everything else I try fails. Note I have a
USRP1 too here.

[dkelly uhd]+master$ sudo uhd_find_devices --args=“type=usrp2”
linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9

No UHD Devices Found

      [dkelly uhd]+master$ sudo uhd_find_devices --args="type=usrp1"

linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9

No UHD Devices Found
[dkelly uhd]+master$ sudo uhd_find_devices --args=“serial=12345”
linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9

No UHD Devices Found

I’ve noticed when when I use the addr argument that I see in wireshark
that
exactly 180 packets are communicated between my pc andthe usrp2. I
don’t
see any packets on either interface for any other argument.

Here is my ifconfig:
eth3 Link encap:Ethernet HWaddr 00:22:3f:f6:36:40
inet6 addr: fe80::222:3fff:fef6:3640/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17375493 errors:0 dropped:0 overruns:0 frame:0
TX packets:6397200 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4261877192 (4.2 GB) TX bytes:499316331 (499.3 MB)
Interrupt:16 Base address:0x6700

eth3:0 Link encap:Ethernet HWaddr 00:22:3f:f6:36:40
inet addr:192.168.10.1 Bcast:0.0.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:16 Base address:0x6700

Does anyone have any ideas for for why only the addr argument works?
I’d
like to use my USRP1 with the UHD.

Also, while I’m here, do I have to update anything (like reflashing the
eeprom) on my USRP1 for it to work with the UHD?

Thanks for any help,
Devin

2

When you specify the address it works, the other methods do not. This is
likely due to a firewall blocking broadcast packet:

http://www.ettus.com/uhd_docs/manual/html/usrp_nxxx.html#debugging-networking-problems

-Josh

3

Thanks Josh, that makes sense. But what about accessing the USRP1?

    uhd_find_devices --args="type=usrp1"

Can’t find any UHD devices.

Thanks for the help.
Devin

4

On Wed, Nov 24, 2010 at 5:47 PM, Devin K. [email protected] wrote:

Thanks Josh, that makes sense. But what about accessing the USRP1?

uhd_find_devices --args=“type=usrp1”

Can’t find any UHD devices.

When I first tried UHD few weeks ago it couldn’t find my USRP1 either.
After a while I realized that I was missing libusb-1.0 and UHD got
compiled without USRP1 support (the old driver uses libusb-0.1). So
check the cmake output and see if USRP1 support is enabled or not.

Alex