Hi Marcus, thank you for your reply.I will do that. resize the USRP Source's output buffer--so we must write a block for USRP Source's output buffer?or we can just set it in USRP Source.
best regards Jon 2017-09-07 3:55 GMT+08:00 Marcus Müller via USRP-users < usrp-users@lists.ettus.com>: > Hi Jong, > > this can have a lot of reasons, but among these: Without starting and > stopping both sink and source at exactly the same time, this flowgraph > won't do what you probably think it'll do – there will be a random delay > offset around your 1 s of delay. Instead of having the delay block, you > should just use timed commands to start TX one second after RX, and resize > the USRP Source's output buffer to be large enough to buffer more than a > million items (that is very large). > > Best regards, > Marcus > On 09/06/2017 11:32 AM, liu Jong via USRP-users wrote: > > Hi all, > We connected usrp source and usrp sink directly with a USRP X310 as below: > > [image: 内嵌图片 1] > Then run it and terminal print UUUUUUUUU all the time. > About version: > UHD_003.010.001.HEAD-0-g945fd653 > gnuradio-3.7.10.1 > > thank you > best regards > Jon > > > _______________________________________________ > USRP-users mailing > listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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