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Today's Topics:
1. Re: problem with my rx daughterboard
(Marcus M?ller via USRP-users)
----------------------------------------------------------------------
Message: 1
Date: Sat, 31 May 2014 18:06:52 +0200
From: Marcus M?ller via USRP-users <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] problem with my rx daughterboard
Message-ID: <[email protected]>
Content-Type: text/plain; charset="iso-8859-1"
Hi Rianam
wrong mailing list for question 1) -- this is not the openBTS user
mailing list.
2) I think I vaguely remember that command from GNU Radio 3.3 or 3.4...
I'd assume that if you're still using it, you're probably having a lot
of problems because of how old your GNU Radio software is.
However, overruns never have to do with daughterboards.
Your computer is too slow, your sampling rate is to high for your USB
link or there is something else wrong,
intercepting with your transmission. You get 4MB/s, which is about
32MBit/s, faster than USB1, so I guess you're using a computer that's
too slow to keep up with your tasks. I've never seen this at a rate as
low as this.
3) I'd assume your harddrive is very slow, you're in a virtual machine,
you have a very "special" (ie. broken) USB controller, you have hard
drive defects or you are running on something with less than 1 GHz of
CPU frequency. These are signs that your computer is too slow.
Do next: Update GNU Radio, UHD, openBTS, get a faster PC.
Greetings,
Marcus
On 31.05.2014 16:24, Riana Risnawati via USRP-users wrote:
> hello everyone,
> i need your help for my deadline thesis to solve this problem.
> i think my rx daughterboard is broken.
> i am using usrp1, anything that i running in my OpenBTS program always
> failed and it because RX daughterboard. like example :
>
> 1) when i running ./OpenBTS :
> i got result :
> Starting the system...
> 1401532271.5140 FORCE 3077900512 Logger.cpp:109:gSetLogFile: setting
> log path to test.out
> 1401532271.5141 ALARM 3077900512 ControlCommon.cpp:560:load: TMSITable
> cannot open TMSITable.txt for reading
> 1401532271.5142 ALARM 3077900512 OpenBTS.cpp:129:main: OpenBTS
> starting, ver 2.6.0Mamou build date May 31 2014
> 1401532271.5941 FORCE 3079440608 Logger.cpp:194:gLogInit: Setting
> initial global logging level to NOTICE
> 1401532271.5941 FORCE 3079440608 Logger.cpp:109:gSetLogFile: setting
> log path to test.TRX.out
> 1401532276.5713 ALARM 3077900512 TRXManager.cpp:447:setMaxDelay:
> SETMAXDLY failed with status -1
> 1401532276.5716 ALARM 3077900512 TRXManager.cpp:458:setRxGain:
> SETRXGAIN failed with status -1
> 1401532276.927067 3077900512:
>
> look at the last alarm, failed in set RX gain.
>
> 2) when i run ./test_usrp_standar_rx the result are :
> ./test_usrp_standar_rx hasilnya :
> xfered 1.34e+08 bytes in 33.3 seconds. 4.03e+06 bytes/sec. cpu time =
> 1.452
> noverruns = 51
>
> the overruns is so large compared with tx only 12 overruns
>
> 3) i run /usrp_rx_cfile.py -R B -f 900M risultato.txt the result are :
> Using RX d'board B: Flex 900 Rx
> USB sample rate 3.25M
> uOuOuOuOuOuOuOuOuOuOuOuOuOuO^C
>
> do you know how to solve it ? can you give me idea what must i do next?
> please reply
> thank you
>
>
>
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