Greetings,
I updated my code from CVS yesterday and the
tx_check.py was missing in the gnuradio-examples. Was
this removed ?
I am still wresting with the issues below. This time I
tried usrp_siggen.py and it fails the first time
giving:
[EMAIL PROTECTED] usrp]$ ./usrp_siggen.py
usrp: found usrp rev2
usrp_open_interface: usb_claim_interface: failed conf
0
could not set config 1: Operation not permitted
open_nth_cmd_interface: open_cmd_interface failed
Traceback (most recent call last):
File "./usrp_siggen.py", line 144, in ?
main ()
File "./usrp_siggen.py", line 128, in main
sg = siggen ()
File "./usrp_siggen.py", line 21, in __init__
self._instantiate_blocks ()
File "./usrp_siggen.py", line 68, in
_instantiate_blocks
self.usrp = usrp.sink_c (0, self.interp)
File
"/usr/local/lib/python2.3/site-packages/gnuradio/usrp1.py",
line 740, in sink_c
return _usrp1.sink_c(*args)
RuntimeError: std::runtime_error
-------------------
Any suggestions ?
Thanks in advance.
Javs
--- Javs <[EMAIL PROTECTED]> wrote:
> Hey Eric,
>
> I tried various values for the amplitude and looks
> like it works fine anywhere between 10000 and
> 35000,
> giving me ~= 10mV and 35mV respectively. But
> anywhere
> below or beyond its behaving erratic. Is this the
> boundary ?
>
> And here is what I get when I boot my usrp and run
> the
> tx_check.py the first time.
>
> [EMAIL PROTECTED] usrp]$ ./tx_check.py usrp: found usrp
> rev2
> usrp_open_interface: usb_claim_interface: failed
> conf
> 0
> could not set config 1: Operation not permitted
> open_nth_cmd_interface: open_cmd_interface failed
> Traceback (most recent call last):
> File "./tx_check.py", line 78, in ?
> main ()
> File "./tx_check.py", line 70, in main
> sg = siggen ()
> File "./tx_check.py", line 17, in __init__
> self._instantiate_blocks ()
> File "./tx_check.py", line 53, in
> _instantiate_blocks
> self.usrp = usrp.sink_c (0, self.interp)
> File
>
"/usr/local/lib/python2.3/site-packages/gnuradio/usrp1.py",
> line 692, in sink_c
> return _usrp1.sink_c(*args)
> RuntimeError: std::runtime_error
>
> ---------
>
> Thanks for looking into it.
>
> Javs
>
> --- Eric Blossom <[EMAIL PROTECTED]> wrote:
> > On Fri, Mar 18, 2005 at 02:05:24PM -0800, Javs
> > wrote:
> > >
> > > Hello ppl,
> > >
> >
> > > I understand that the interpolation factor
> changes
> > the amplitudes of
> > > the signals. The default usrp_siggen.py works
> fine
> > and I can admire
> > > 16mV and 100 K on the scope. But if I use the
> > default intrp of 64 in
> > > the example usrp_siggen.py and try to change the
> > amplitude levels
> > > using -a option, the signals still come down.
> Any
> > guesses why ?
> >
> > What value's are you trying with the -a option?
> > Keep them <= 16000.
> >
> > > Also, When I first boot my USRP and try an
> > example, it fails for the
> > > first time. For instance, I tried tx_check.py
> and
> > i had a runtime
> > > error. However, it works fine the second time.
> Is
> > this because, it
> > > takes its time to load firmware into the FX2 and
> > the FPGA or am I
> > > missing something here ?
> >
> > What's the error?
> >
> > Eric
> >
>
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