Re: [Discuss-gnuradio] Late Packet Arrivals

[Marcus Müller]

Hi Alex,

what's your USRP type?

look for lines that are uspr->set_command_time, or where you have a uhd::tx_metadata_t and set a time_spec in that.

Also, timed commands imply that you set a sensible time on the USRP, so look for any place that calls "set_time_now", "set_time_next_pps" or "set_time_unknown_pps".

Which version of UHD are you currently using? Is your USRP equipped with a GPSDO?

Best regards,
Marcus

On 22.11.2015 19:56, Alexander Levedahl wrote:

Hello,

I have an application that is spewing up 'L's indicating late packet arrival at the destination.  How can I go about investigating this problem (e.g., how do I determine what the time of transmission is in the packet and the time it is received by the ettus box)?

I have not done much work in gnuradio before and am taking over an application from someone previous. 

Thanks,

Alex

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