I'm also interested in this problem. I have tried to setup a UHD sink and a UHD source using one USRP2 + XCVR2450 daughterboard like tunnel.py. The flowgraph is like this: (1) Tx Path: self.connect(self.txpath, self.sink); (2) Rx Path: self.connect(self.source, self.rxpath). It works but makes my confused since XCVR2450 does not support full-duplex operation, attempting to operate in full-duplex will result in transmit-only operation. How is it possible to setup a UHD sink and source at the same time with only one USRP2 + XCVR2450? Does it mean the UHD driver can switch between tx and rx states automatically? Or does it mean the UHD + 2450 is actually in tx mode?
Any idea would be appreciated. Thanks. Regards, Lizhao 2011/10/14 Marcus D. Leech <mle...@ripnet.com> > On 14/10/2011 10:04 AM, Tuan (Johnny) Ta wrote: > >> I'm also interested in this problem. Juan Ramon, did you make any >> progress? If you did, would you mind sharing it? >> >> For Marcus, I have a more general question regarding the flow graph. If I >> have in my GRC both a UHD sink and a UHD source block, is it true that the >> USRP2 will stay in receive mode until there're samples on the transmit >> buffer? Will it then switch to transmit mode and transmit until the >> transmit buffer is empty and switch back to receive mode? >> >> Thanks, >> Johnny >> >> Basically, yes. The UHD interface will turn back to receive when the > End-of-Burst is triggered. But Josh probably has better details. > I'm largely a receive-only guy in my own personal projects. > > > > ______________________________**_________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >
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