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From: | Marcus Müller |
Subject: | Re: [Discuss-gnuradio] OSParam Error |
Date: | Mon, 18 Nov 2013 08:48:23 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 |
Don't use a throttle in a flow graph
with a hardware source. A throttle block is software-limiting the
number of samples that pass your flowgraph on average in a given
time. You have an USRP that produces samples at a constant rate:
Either this rate is significantly lower than your throttle rate,
in which case throttle is superflous, or you'll run into problems
because throttle is trying to throttle what it shouldn't throttle
because the hardware defines how fast your samples must flow.
For your file-sourced flowgraph, however, throttle is the right way to go -- but honestly, with 50Ms/s your PC will most likely get into such heavy work that it can't process everything in real-time (otherwise it could do it with live data, too) and your throttle doesn't do anything. I don't know your osparam error. But the D errors are likely caused by your computer being to busy to process the samples. Reduce the sample rate at the usrp, if you want to look at 10MHz of bandwidth, anyway. On 11/18/2013 12:49 AM, Paul B. Huter wrote:
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