Re: [Discuss-gnuradio] Re: debug freezing

[Josh Blum]

feldmaus wrote:
> Josh Blum <josh <at> joshknows.com> writes:
>
> > peak detector can output 1 or 0. What is it outputting?
> I get 1 and 0 when it is not freezed.
> I uploaded a screenshot, but i am not sure whether this works,
> http://img228.imageshack.us/my.php?image=peakdetected.jpg
>
> There you can see that i get 1 at a peak otherwise 0. The blue wave
> in the scope shows the peaks and the red wave is the signal
> i am searching peaks for.
>
> The signal is at 1020 kHz. Some frequencies results in a freezing
> of my graphical elements.

Do you think that it might be possible for peak detector to output 
always the same number at "some frequencies"?

Replace the peak detector with a source of constant 0 or a source of 
constant 1, do the plots appear frozen?

It seems that if you give the graphical sinks a signal that never 
changes, the plotted waveforms will also not change.

Further, if your scope is triggering on channel 1 (the blue) and blue is 
constant, the scope cannot find a trigger point, and stop plotting new 
samples until a trigger point is found.

-josh

> Regards Markus
>
>
>
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