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[Discuss-gnuradio] scopesink / fftsink fixes

From: Eric Blossom
Subject: [Discuss-gnuradio] scopesink / fftsink fixes
Date: Wed, 11 May 2005 16:04:01 -0700
User-agent: Mutt/1.5.6i

Thanks to the troubleshooting efforts of Jon Jacky, we've now got
scope and fft sinks that work reliably on OS/X.  [There was a problem
with os.read returning a short read count.]

I've also added a 

  gr.throttle(itemsize, sample_rate)

block that limits the average sample rate through the block to
sample_rate samples/sec.  This can come in handy where there is no i/o
device limiting the CPU consumption of GNU Radio.  I've added this
block to the scopesink and fftsink demos so they are now *much* more

To get this stuff you'll need to update and build gnuradio-core and
gr-wxgui from CVS.  [I've noticed a dependency problem with swig .i
files.  Work around: After updating gnuradio-core, cd
gnuradio-core/src/lib/swig, make clean, then build as usual.]


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