Re: [Discuss-gnuradio] Help needed regarding implementing spring mass system in GRC

[Dan CaJacob]

Hey Afaq,

Unfortunately, GNURadio doesn't allow for signal feedback the way Simulink
does. You can do feedback *within* a block, but that probably defeats the
flexibility you were seeking?

- Dan

On Mon, Dec 4, 2017 at 9:33 AM Afaq Ahmed <engineer.aa...@gmail.com> wrote:

> Hello,
> I want to implement spring mass system with PID controller of example
> mentioned in following link
>
> [
> http://ctms.engin.umich.edu/CTMS/index.php?example=Introduction&section=ControlPID
> ]
>
> I want to create a flow graph exactly as given in the figure
> "Spring_mass_simulink" . Can you please help me how can i achieve this
> target? As i tried to implement it but unfortunately i always get an error
> of "Flow graph has loops"
> Thanks a lot
> Afaq
>
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> Discuss-gnuradio@gnu.org
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>
-- 
Very Respectfully,

Dan CaJacob

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