Unknown dboard-id

GNU Radio
1

I tested the usrp2 using uhd_usrp_probe, why is there a warning about
unknown dboard-id or dboard-id combination and Unknown value for RX
Subdev and TX Subdev (antenna?)?is there some miss when I assembled the
device?or it’s needed to configure through software?

[root@Fedora12 host]# /usr/local/bin/uhd_usrp_probe
Current recv sock buff size: 50000000 bytes
Current send sock buff size: 50000000 bytes
Warning: unknown dboard-id or dboard-id combination: unknown (0x0002)
-> defaulting to the unknown board type
Warning: unknown dboard-id or dboard-id combination: unknown (0xffff)
-> defaulting to the unknown board type
Using: Unknown - unknown (0x0002)
Using: Unknown - unknown (0xffff)
RX samples per packet: 362
TX samples per packet: 363
Recv pirate num frames: 33967

/
| Device: usrp2 device
| _____________________________________________________
| /
| | Mboard: usrp2 mboard0 - rev 4:0
| | mac-addr: 00:50:c2:85:37:ea
| | ip-addr: 255.255.255.255
| | _____________________________________________________
| | /
| | | RX DSP: usrp2 ddc0
| | | Codec Rate: 100.000000 Msps
| | _____________________________________________________
| | /
| | | TX DSP: usrp2 duc0
| | | Codec Rate: 100.000000 Msps
| | _____________________________________________________
| | /
| | | RX Dboard: usrp2 dboard (rx unit)
| | | _____________________________________________________
| | | /
| | | | RX Subdev: Unknown - unknown (0x0002)
| | | | Antennas:
| | | | Freq range: 0.000 to 0.000 Mhz
| | | | Gain Elements: None
| | | | Connection Type: 6
| | | | Uses LO offset: No
| | _____________________________________________________
| | /
| | | TX Dboard: usrp2 dboard (tx unit)
| | | _____________________________________________________
| | | /
| | | | TX Subdev: Unknown - unknown (0xffff)
| | | | Antennas:
| | | | Freq range: 0.000 to 0.000 Mhz
| | | | Gain Elements: None
| | | | Connection Type: 6
| | | | Uses LO offset: No

2

Mr ninja,

The dbsrx is not yet supported under UHD. That is why dboard id 0x0002
is not recognized. Our daughterboard engineer is working on it this very
day; though I cannot make promises as to its release.

Regardless, if you intend to use the dbsrx with a usrp2, it will require
the clock modification:
http://gnuradio.org/redmine/wiki/gnuradio/USRP2DBSRXModification

When the dbsrx uhd support is out, we will have uhd-based instructions
for the modification as well.

-Josh

3

Is my impression right, that the dboard id 2 is for the original dbsrx
variant
and the dboard id 13 ist for the usrp2 patched variant?
I was wondering if the programming was successful or not.
The modification instructions have no comment about this.
With the id 13 now it’s working with the ursp2 (standard driver).

4

Hi Josh,

Thanks for the info.

I just understand the different of UHD based and USRP2-gnuradio, so
tried using non-uhd firmware and fpga (txrx_raw_eth_20100608.bin,
u2_rev3-20100603.bin) on sd card, and run usrp2_fft.py, it works as gui
is shown up. But I still see 0x002 displayed there (in bottom of window,
between “Fs@GbE” and “analog bb”).

And also, I am very newbie on this stuff so probably following question
would be silly here. I tried to read the link for clock modification but
had no idea what it’s talking about (what to be removed?), do you have
link with comprehensive picture? And as usrp2_fft.py is working now, do
I still need to modify the clock?what’s the effect?

  • Rasyid
5

DBSRX support is available for the UHD.

Modification instructions have been created for dbsrx:
http://www.ettus.com/uhd_docs/manual/html/dboards.html#id1

-Josh

6

On 08/04/2010 09:41 AM, Moeller wrote:

Is my impression right, that the dboard id 2 is for the original dbsrx variant
and the dboard id 13 ist for the usrp2 patched variant?

Yes

I was wondering if the programming was successful or not.
The modification instructions have no comment about this.
With the id 13 now it’s working with the ursp2 (standard driver).

If it reads ID #13 then it was successful.

Matt