Re: [Discuss-gnuradio] db_base.py:108 _refclk_divisor() not implemented

[Matt Ettus]

Sorry about that.  I fixed it, so just update gr-usrp and you should be ok.

Matt



Berndt Josef Wulf wrote:
> G'day,
> 
> in db_base.py at line 108 the function for _refclk_divisor() is apparently 
> not 
> implemented causing failure to run any code accessing the usrp.
> 
> Traceback (most recent call last):
>   File "./benchmark_usb.py", line 106, in ?
>     main ()
>   File "./benchmark_usb.py", line 96, in main
>     ok = run_test (rate, verbose)
>   File "./benchmark_usb.py", line 67, in run_test
>     usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, 
> usrp.FPGA_MODE_LOOPBACK)
>   File "/usr/pkg/lib/python2.4/site-packages/gnuradio/usrp.py", line 260, in 
> __init__
>     self.db = (db_instantiator.instantiate(self._u, 0),
>   File "/usr/pkg/lib/python2.4/site-packages/gnuradio/db_instantiator.py", 
> line 30, in instantiate
>     return _instantiator_map[dbid](usrp, which)
>   File "/usr/pkg/lib/python2.4/site-packages/gnuradio/db_dbs_rx.py", line 
> 339, 
> in <lambda>
>     db_instantiator.add(usrp_dbid.DBS_RX, lambda usrp, which : 
> (db_dbs_rx(usrp, which),))
>   File "/usr/pkg/lib/python2.4/site-packages/gnuradio/db_dbs_rx.py", line 67, 
> in __init__
>     self._enable_refclk(True)
>   File "/usr/pkg/lib/python2.4/site-packages/gnuradio/db_base.py", line 103, 
> in _enable_refclk
>     ((self._refclk_divisor() & REFCLK_DIVISOR_MASK)
>   File "/usr/pkg/lib/python2.4/site-packages/gnuradio/db_base.py", line 112, 
> in _refclk_divisor
>     raise NotImplementedError
> NotImplementedError
> 
> The source code indeed reveals an unimplemented function raising 
> "NotImplementedError" for _refclk_divisor().
> 
>     def _refclk_divisor(self):
>         """
>         Return value to stick in REFCLK_DIVISOR register
>         """
>         raise NotImplementedError
> 
> My guess is that this is work in progress. Previous revisions return a value 
> of 4.
> 
> cheerio Berndt
> 
> 
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