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Re: [Discuss-gnuradio] Assertion Error when running gnuradio examples
From: |
Matt Ettus |
Subject: |
Re: [Discuss-gnuradio] Assertion Error when running gnuradio examples |
Date: |
Wed, 24 May 2006 12:23:24 -0700 |
Its checked in, but it won't fix your problem. It will just make the
error more obvious.
Matt
On Mon, 2006-05-22 at 09:48 -0500, Michael Ford wrote:
> Eric,
>
> How will I know when the daughterboard code has been updated?
>
> Also, thanks to you and Thomas for your help so far. I've got the
> coding background for this, but not the DSP background. I'm learning
> as I go, but as you can imagine, I have my struggles understanding.
> *laughs*
>
> -Michael Ford-
>
>
> On 5/20/06, Eric Blossom <address@hidden> wrote:
> On Sat, May 20, 2006 at 11:03:03AM -0700, Thomas Schmid wrote:
> > Hi Michael,
> >
> > GNURadio is under active development. Therefore, file names
> can change
> > and thus tutorials don't reflect the latest changes until
> they are
> > updated. The two file syou found, std_2rxhb_2tx.rbf and
> > std_4rx_0tx.rbf, are two different versions for the USRP
> firmware. the
> > first one has two rx and to tx paths, the second one has 4
> rx and no
> > tx.
> >
> > When the oscilloscope run, did you see a change in the LED
> on your
> > USRP, i.e., did it first blink fast, and once the
> oscilloscope was
> > running it blinked slower? If, then everything is fine. If
> not, then
> > follow the installation instructions here:
> > http://www.comsec.com/wiki?UsrpInstall
> > except that I think we are at rev4 for the firmware now,
> instead of rev2.
> >
> > The exception you get is probably because you have the wrong
> > daughterboard in your USRP. What is the configuration you
> are using?
> >
> > Cheers,
> > Thomas
>
> Thanks Thomas. Those are all good suggestions.
>
> Michael,
>
> The problem is twofold.
>
> (1) You asked the 2.4 GHz daughterboard to attempt to tune
> to 101.5 Hz
>
> > usrp_wfm_rcv_nogui.py -f 101.5 # should really be -f
> 101.5M
>
> (2) There's a bug in the daughterboard code, that has it
> blow up
> instead of just cleanly returning a failure code.
>
> [Matt, can you please fix this when you return from
> Dayton? This problem
> may exist for all the RFX boards.]
>
> Also, the tutorials (like most everything) were written by a
> volunteer. The underlying code base has changed since they
> were
> written. Perhaps Dawei or someone else can update them if
> they get a
> chance.
>
> Eric
>
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--
Matt Ettus <address@hidden>