Re: Is there a way to change the number of taps of the FIR filter in GNURadio while running?

[Christophe Seguinot]

Looking at callbacks_all (inside top_block.py), no callback is related to "xx filter taps blocks" (the RRC filter taps not present in the original flowgraph is also buggy)

in Yaml /gr-filters/grc/variable_low_pass_filter_taps.block.yml i don't see any callback !

I've just discovered what GNURadio callbacks are so I prefer not fixing this issue myself...

    Regards, Christophe

On 04/03/2021 04:10, Jay Patel wrote:

Hi all,

I am using GNURadio example Filter Introduction flow graph which shows basic introduction of filtering. I want to change the no. of taps while running the program. I tried to put the qt gui range but it looks like GNURadio creates/calculates taps as a static vector in the start of the execution of the flow graph.

Is there a work around this ?  I mean can I put a slider or counter for changing the transition_width which changes the number of taps while running the flow graph ?

Thanks. Any suggestions are appreciated.

With Regards,

Jay Patel