Forum: GNU Radio Re: FPGA .rbf file

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069315c9e8059c65c4c3d3e24803545f?d=identicon&s=25 Michael P Buettner (Guest)
on 2007-08-02 00:35
(Received via mailing list)
> >self.usrp_out = usrp.sink_c (fpga_filename="file_B.rbf")
> >
> >
> >Only file_B has any effect? When does the file get loaded?

> Last one wins.  It gets loaded in the constructor.

> Eric

Is this true?  I have an application that has both a usrp.source_c and a
usrp.sink_c.  If I use the "fpga_filename" parameter for only one of
those calls, the receive channel does not work and I see a continuous
stream of 'u0s'. However, if I use specify the same rbf in both calls,
all is well.

michael
745d8202ef5a58c1058d0e5395a78f9c?d=identicon&s=25 Eric Blossom (Guest)
on 2007-08-02 02:51
(Received via mailing list)
On Wed, Aug 01, 2007 at 03:34:56PM -0700, Michael P Buettner wrote:
> >> self.usrp_in = usrp.source_c (fpga_filename="file_A.rbf")
> usrp.sink_c.  If I use the "fpga_filename" parameter for only one of those
> calls, the receive channel does not work and I see a continuous stream of
> 'u0s'. However, if I use specify the same rbf in both calls, all is well.
>
> michael

You definitely want to specify the same one in both constructors.
When I said the last one wins, I meant that.  The second one stomps the
initialization from the first one...

Eric
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