Everything is OK, I have just put "B:A A:0" in the subdevice field.
On Wed, Dec 4, 2013 at 10:47 AM, Nemanja Savic <vlasi...@gmail.com> wrote:
> I did following: I made simple flow graph and used USRP source first with
> two channels and LFTX mboard. But the follwong error occurs:
>
> File "/home/savi_ne/work/gnuradio/GRC/top_block.py", line 105, in
> __init__
> self.uhd_usrp_source_0_0_1.set_center_freq(433900000, 1)
> File
> "/usr/local/lib64/python2.6/site-packages/gnuradio/uhd/uhd_swig.py", line
> 1872, in set_center_freq
> return _uhd_swig.uhd_usrp_source_sptr_set_center_freq(self, *args)
> RuntimeError: vector::_M_range_check
>
>
> When I tried with setting two mboards, with LFTX A channel subdevice in
> the first channel (B:A option_ and WBX on the second channel I get
> following error:
>
> File "./top_block.py", line 101, in __init__
> self.uhd_usrp_source_0_0_1.set_subdev_spec("A:0", 1)
> File
> "/usr/local/lib64/python2.6/site-packages/gnuradio/uhd/uhd_swig.py", line
> 1831, in set_subdev_spec
> return _uhd_swig.uhd_usrp_source_sptr_set_subdev_spec(self, *args,
> **kwargs)
> RuntimeError: vector::_M_range_check
>
> And as far as I have seen GRC doesn't put anything in the field
> device_addr for changing FPGA image.
>
>
> On Tue, Dec 3, 2013 at 6:03 PM, Marcus D. Leech <mle...@ripnet.com> wrote:
>
>> On 12/03/2013 12:00 PM, Nemanja Savic wrote:
>>
>>> Thank you Marcus again,
>>>
>>> I changed device address, in both places, but the same problem appears.
>>> I see that it loads now 4rx image, but the problem remains.
>>>
>>> self.uhd_usrp_source_1 = uhd.usrp_source(
>>> device_addr="fpga=usrp1_fpga_4rx.rbf",
>>> stream_args=uhd.stream_args(
>>> cpu_format="fc32",
>>> channels=range(1),
>>> ),
>>> )
>>>
>>>
>>> You should probably start with a GRC flow-graph with a single UHD USRP
>> source, with two channels being what you want, and look at the generated
>> Python code.
>>
>>
>>
>>
>>
>> --
>> Marcus Leech
>> Principal Investigator
>> Shirleys Bay Radio Astronomy Consortium
>> http://www.sbrac.org
>>
>>
>
>
> --
> Nemanja Savić
>
--
Nemanja Savić
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