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Re: [Discuss-gnuradio] Question about latency

From: Mattias Kjellsson
Subject: Re: [Discuss-gnuradio] Question about latency
Date: Thu, 02 Apr 2009 17:28:45 +0200
User-agent: Thunderbird (X11/20090318)

Hello everyone,
I am trying to implement some relaying schemes in gnuradio which require
fast response from the relay. I only know how to use flow graphs at the moment so I made my code with flowgraphs and the delay from receiving a packet until I retransmit it is about 10ms. I'm using USRP1 and the sampling rate is 2MSPS and I use the autotransmit capability of USRP. First of all I'm trying to understand where the delay comes from.
I'm not entirely sure, but I think there is a sleep in the (FlexRF) daughter- board drivers... Try grepping "usleep".


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