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[Discuss-gnuradio] USRP1 Inband firmware questions

From: Sylvain Munaut
Subject: [Discuss-gnuradio] USRP1 Inband firmware questions
Date: Thu, 12 Aug 2010 14:27:19 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100715 Thunderbird/3.0.5


I'm trying to adapt openbts to the inband firmware for which the source
are available. (it seems the sources for the std_inband.rbf that openbts
uses has been 'lost')

Two things I'm faced with

 - How can I know the 'current' TX timestamp ? I want to send a ping
command, but I don't see a way to know what timestamp I should use.

 - The timestamp seems imprecise: I often get a timestamp difference
between two packets of 24191 or 24193  while I should in fact get 24192
(I'm at 192 decimation). With such a high decimator, I can fix it up
myself, but still, that looks weird.



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