On 16/08/2011 12:57 PM, Josh Blum wrote:
On 08/16/2011 08:33 AM, Isaac Gerg wrote:
Hi Everyone,
I have a USRP N200 rev 2. I created a simple graph using the gnu radio
companion (grc) which is composed of three blocks, a UHD source, a variable
slider, and a WX FFT Waterfall display. When I run this graph, i quickly
see the waterfall display fill up with the color blue and then the
application becomes unresponsive. How can I fix this?
Sounds like the opengl plotter widget is getting overwhelmed. Its
different on every computer. Try a smaller fft size to shrink the size
of the on-screen texture.
The usual issue is the frame-rate, not the FFT size. The default for
that widget is 15FPS, and since the colourmaps are
computed (as I recall) in Python, it has a hard time keeping up,
particularly if the bandwidth is high.
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