Re: [Discuss-gnuradio] Specify taps for 'FFT_Filter' using function call to 'GLFSR Source'

[Marcus Müller]

Hi Cinaed,

interestingly, period() gives me 0b(degree ones) all the time, so I'm
not sure we don't see a bug there.

Best regards,

Marcus


On 09/27/2017 12:01 AM, Cinaed Simson wrote:
> Try
>
>   from gnuradio import digital as digital
>   src=digital.glfsr_source_f(13,False,0x0000100D,0xA5A5)
>   src.period()
>
> src has type <gr_block glfsr_source_f (0)>
>
> Unfortunately, I don't know enough to be able to convert to an array of
> floats need for filter taps.
>
> -- Cinaed
>
>
> On 09/26/2017 05:45 PM, Chad Spooner wrote:
>> All:
>>
>> I've got a working signal generator in GRC that uses the FFT Filter
>> block. In the Taps
>> field of this block, I've hand-entered a length-31 sequence that is an
>> MLSR sequence.
>> These sequences can be generated using the GRC block GLFRS Source as well.
>>
>> What I would like to do is call GLFSR from within  the FFT Filter Taps
>> field with arguments
>> that depend on a Parameter. Specifically, the Degree parameter of GLFSR
>> would
>> be tied to a Parameter in the flowgraph.
>>
>> I've been searching around the web for a way to do this, but I can't
>> seem to find how
>> to call things like GLFSR as opposed to using the GLFSR block in GRC. My
>> Google
>> searches do not seem to contain the correct keywords to get me to the
>> help I need.
>>
>> I'd appreciate any hints, especially links to explanations on the web.
>>
>> Thanks!
>>
>> Chad
>>
>> -- 
>> Chad M. Spooner
>> NorthWest Research Associates
>> 301 Webster Street
>> Monterey, CA 93940
>> address@hidden
>> 831 582 4904
>> cyclostationary.blog
>>
>>
>>
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>
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