Re: [Discuss-gnuradio] Bug with USRP2/SBX and UHD when launching the acquisition

[Emmanuel Caillé]

2011/8/5 Marcus D. Leech <address@hidden>:
> On 05/08/2011 10:33 AM, Emmanuel Caillé wrote:
>>
>> Hello all,
>>
>> I have a problem with my USRP2 (with a SBX board) :
>> Most of times when I launch the acquisition, no data are received.
>>
>> For example with uhd_fft.py :
>>
>> $ uhd_fft.py
>> linux; GNU C++ version 4.5.2; Boost_104200; UHD_003.002.001-fc349d3
>> -- Opening a USRP2/N-Series device...
>> -- Current recv frame size: 1472 bytes
>> -- Current send frame size: 1472 bytes
>>
>> and the FFT Plotter appear but is empty.
>>
> Also, what do you get with
>
> uhd_usrp_probe --args "addr=192.168.10.2"  (or whatever you've set the IP
> addr of the USRP2 to).
>
>

There are no samples (autoscale don't do anything) and there are no
timeout errors.
I perfectly ping the device (with 0% packet loss).
I don't understand why sometimes it works and at other times it
doesn't (without changing any option).

$ uhd_usrp_probe
linux; GNU C++ version 4.5.2; Boost_104200; UHD_003.002.001-fc349d3

-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
  _____________________________________________________
 /
|       Device: USRP2 / N-Series Device
|     _____________________________________________________
|    /
|   |       Mboard: USRP2-REV4
|   |   rev: 1024
|   |   mac-addr: 00:50:c2:85:3a:a4
|   |   ip-addr: 10.66.160.164
|   |   gpsdo: none
|   |   serial: 2724
|   |
|   |   Time sources: none, external, _external_, mimo
|   |   Clock sources: internal, external, mimo
|   |   Sensors: mimo_locked, ref_locked
|   |     _____________________________________________________
|   |    /
|   |   |       RX DSP: 0
|   |   |   Freq range: -50.000 to 50.000 Mhz
|   |     _____________________________________________________
|   |    /
|   |   |       RX DSP: 1
|   |   |   Freq range: -50.000 to 50.000 Mhz
|   |     _____________________________________________________
|   |    /
|   |   |       RX Dboard: A
|   |   |   ID: SBX (0x0054)
|   |   |   Serial: E7R10Y0XS
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Subdev: 0
|   |   |   |   Name: SBX (0x0054)
|   |   |   |   Antennas: TX/RX, RX2
|   |   |   |   Sensors: lo_locked
|   |   |   |   Freq range: 68.750 to 4400.000 Mhz
|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
|   |   |   |   Connection Type: IQ
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Codec: A
|   |   |   |   Name: ltc2284
|   |   |   |   Gain Elements: None
|   |     _____________________________________________________
|   |    /
|   |   |       TX DSP: 0
|   |   |   Freq range: -250.000 to 250.000 Mhz
|   |     _____________________________________________________
|   |    /
|   |   |       TX Dboard: A
|   |   |   ID: SBX (0x0055)
|   |   |   Serial: E7R10Y0XS
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Subdev: 0
|   |   |   |   Name: SBX (0x0055)
|   |   |   |   Antennas: TX/RX
|   |   |   |   Sensors: lo_locked
|   |   |   |   Freq range: 68.750 to 4400.000 Mhz
|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
|   |   |   |   Connection Type: QI
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Codec: A
|   |   |   |   Name: ad9777
|   |   |   |   Gain Elements: None

(I had the same problem when I used the 192.168.10.2 IP)