Re: [Discuss-gnuradio] UHD Source -and- Sink In Same GRC Flowgraph ?

[Iain Young, G7III]

On 21/02/12 23:04, Marcus D. Leech wrote:

> > Sure can. Graph is as follows:
> >
> > [Null Source] ---> [UHD SINK]
> > [UHD Source] ---> [Null Sink]
> >
> >
> > Results are as follows:
> >
> > Options Block/Generate Options set to QT-GUI : Runs Fine
> > Options Block/Generate Options set to WX-GUI : SEGV
> > Options Block/Generate Options set to No-GUI : SEGV
> >
> > Also added a "NOP" block in-between the sources and sinks,
> > same result.
> >
> >
> > Iain
> OK, but were these sending/receive from the USRP1 simultaneously, in the
> same flow-graph?

They was within the same GRC File, although not linked (IE separate
RX and TX chains)

> The case I'm interested in is where there's only one of those at a time.

I just tried [UHD SOURCE] -> [MULTIPLY CONST] -> [UHD SINK], and that
worked with all three Options Block/Generate Options settings.
[UHD SOURCE] -> [MULTIPLY CONST] -> [WX WATERFALL SINK] has always
worked.

Just having one "chain", RX or TX has always worked for me, even with
the WX GUI sinks.

Hope that helps


Iain