Re: [Discuss-gnuradio] multi_usrp

[john]

On Mon, 2011-08-01 at 13:20 -0400, Marcus D. Leech wrote:
> On 08/01/2011 03:30 AM, john wrote:
> > On Sun, 2011-07-31 at 18:30 -0400, Marcus D. Leech wrote:
> >> On 07/31/2011 11:14 AM, john wrote:
> >>> O
> >>> Thanks Marcus. Yes, that technique is quite useful - particularly in
> >>> setting up channels, addressing etc. however, in terms of giving the
> >>> board ID of the RX/TX on either 'side' of a USRP1 it is not so great.
> >>> Yes, you can readily get frequency range/antenna/gain but I need a bit
> >>> more.
> >>>
> >>>                Kind Regards,
> >>>
> >>>                        John
> >>>
> >>>
> >> I'm not fully understanding what it is you need.  You need to *fetch*
> >> the board ID from the
> >>     interface, rather than setting the subdev specifications?
> >>
> > You are correct Marcus in terms of what I want to do. From reading the
> > comments in the code, I thought that I was to use set_subdev for the
> > channel(s) and then could both set/get relevant parameters ( freq range,
> > gain etc. ) i.e. attributes which use channelid as parameter. ( I think
> > that is how it was described).
> >
> > I wish to get mboard type and rx and tx dboard types for USRP1 but using
> > UHD as the dboards are only supported under that paradigm when they were
> > announced.
> >
> >   Sorry if I am passing on my confusion,
> >
> >          Kind Regards,
> >
> >                      John
> >
> >
> >
> >
> >
> I think that if you look at the current UHD Doxygen, you'll find that 
> there are functions to do what you want.  Starting with a "usrp" object,
>    you need to indirect a couple of times, but you can get the board ids 
> with UHD functions.
> 
> 
Thanks, again, Marcus. I had looked at the usrp_ra_receiver in
gr-radio-astronomy and saw getting DB_ID but in my ignorance, when I was
told that SBX or DBSRX2 were only supported under UHD, I thought that I
could/should not use USRP methods; I had assumed that the two
personalities used their own firmware and I would need to tell the
system to use USRP personality and go out and query boards etc. (maybe
even non-UHD only boards) and then delete that instance and create one
in UHD which do the real work under UHD.

        Kind Regards,

         John