Re: [Discuss-gnuradio] half duplex set_auto_tx timing problems

[Marcus D. Leech]

> Hi Marcus,
>
> Thanks for the quick comments. Yes, I totally agree that using full
> duplex with RX2 and TX/RX would be the ideal way to go, and as you say
> I can easily ignore and synchronize with my own transmissions. The
> problem is that I am required to use a single antenna, so I have to do
> a half duplex solution with all its warts and synchronization
> problems.
>
> As for the switching time, I do not care if the switches (or the FPGA)
> introduce deterministic delays, I can cope with that.
>
> You mention that the state machine is set up in the daughter card
> setup driver. Is this the file in
> "host/lib/usrp/dboard/db_sbx_common.cpp" for the SBX board? Is this
> code used for USRP2 and not only for USRP1?
>
> Best,
> Miklos
Yes, as far as I know.  Josh could probably comment in more detail, but 
he's at a conference today.

I wouldn't recommend mucking about too much with the ATR code, since I 
think it's possible to end up in a "TX connected to RX" state if you're
  not careful.


--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org