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[Discuss-gnuradio] recovering timing after overflow


From: Juha Vierinen
Subject: [Discuss-gnuradio] recovering timing after overflow
Date: Wed, 26 Oct 2011 13:41:02 +0300

Hi,

I have been able to use the stream tagging to determine the accurate
timing for the first sample of the stream. However, I run into
problems after an overflow. It does seem to be feasible to recover
timing by looking for new tags (the uhd_usrp block applies a new tag
after an overflow is detected). However, this pmt is too alien to me
still and I'm not exactly sure how to query for the sample index
corresponding to the new tag. Are there any examples anywhere? I know
how to query for the tags between some interval of samples, but I
cannot get the exact sample corresponding to the first sample of the
packet arriving after overflow.

juha



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