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Re: [Discuss-gnuradio] Bug with USRP2/SBX and UHD when launching the acq
From: |
Emmanuel Caillé |
Subject: |
Re: [Discuss-gnuradio] Bug with USRP2/SBX and UHD when launching the acquisition |
Date: |
Mon, 8 Aug 2011 11:04:49 +0200 |
2011/8/8 Emmanuel Caillé <address@hidden>:
> 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)
>
I fixed my problem : I replaced my Gigabit Switch with a crossed cable
and know everything work fine.
Thanks for your advices.
--
Emmanuel