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Re: [Discuss-gnuradio] UHD problem


From: Nick Foster
Subject: Re: [Discuss-gnuradio] UHD problem
Date: Tue, 13 Dec 2011 10:30:03 -0800

Like Josh said, one or two "U"s isn't a big deal, but is it
underflowing constantly? That would be strange.

Are you looking at the output on an oscilloscope?

On 12/13/11, osama mohamed <address@hidden> wrote:
>
> hi  nick,
> thanks for your reply
> i tried the same command line arguments  you gave me but the problem that
> there is always an under run  error even if i change the args i tried
> several combinations but none of them worked
> any suggestions about that underrun problem
>
> thanks,
>
> osama
>
>> Date: Tue, 13 Dec 2011 08:50:36 -0800
>> Subject: Re: [Discuss-gnuradio] UHD problem
>> From: address@hidden
>> To: address@hidden
>>
>> Are you using tx_waveforms? How are you measuring the received signal? Try
>> this:
>>
>> ./tx_waveforms --ampl=0.5 --rate=4e6 --gain=20 --wave-type=SINE
>> --wave-freq=10e3 --freq=1.1e6
>>
>> This should produce a tone at 1.11MHz on the TX_A output of the BasicTX.
>>
>> If you don't see the desired tone, please cut and paste the entire
>> output of the command.
>>
>> --n
>>
>> 2011/12/13 osama mohamed <address@hidden>:
>> > hi all,
>> >
>> > i am using usrp1 and a basic tx when i run any uhd example that
>> > transmits
>> > data i see the meta data going out from the fx2  to the fpga but it
>> > never
>> > goes to the codec so no signal is generated
>> >
>> > any help is appreciated
>> >
>> > osama
>> >
>> > _______________________________________________
>> > Discuss-gnuradio mailing list
>> > address@hidden
>> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>> >
>



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