Re: [Discuss-gnuradio] question about routing data

[Przemek Lewandowski]

Thank you Kevin for reply.

I have created small system with "multiply matrix" block. And it works good, BUT I dont how to change it during runtime :) there is input "set A" - but I dont know how to set it from gui ?? all i know is that input is async 

Here is my prototype

http://postimg.org/image/krw9mxmb5/  

Greetings

2015-10-04 2:00 GMT+02:00 Kevin Reid <address@hidden>:

On Oct 3, 2015, at 13:58, Przemek Lewandowski <address@hidden> wrote:

> Hi everybody :)
>
> Simple, fast question.
> Task: Implement as many as possible modulations with GnuRadio - analog and digital
> Problem: how to switch between many modulation in GnuRadio Companion with minimal performance issue ?

There's two different sorts of performance you might care about:

If you want the best switching speed, use a Multiply Matrix block to combine all the modulators' outputs but multiply all but one of them by zero.

If you want the least wasted CPU, you must actually remove the unused modulators from the flow graph; this cannot be done inside GRC (unless you use Selector and Valve carefully) but can be done from a Python program (which can interact with things written using GRC via hier blocks).

--
Kevin Reid                                  <http://switchb.org/kpreid/>