UHD underrun problem

hi all,

Q1:can any one tell me the common mistakes that lead to the underrun
problem occurrence while transmission

Q2:also what are the recommended configurations for the send()
function(buffer size , timeout ,delay between samples)

Q3:do i have to send the end of burst packet after each call to the
send() function

On 12/20/2011 04:39 AM, osama mohamed wrote:

hi all,

Q1:can any one tell me the common mistakes that lead to the underrun problem
occurrence while transmission

http://files.ettus.com/uhd_docs/manual/html/general.html#overflow-underflow-notes

Q2:also what are the recommended configurations for the send() function(buffer
size , timeout ,delay between samples)

These parameters depend on your application…

Q3:do i have to send the end of burst packet after each call to the send()
function

No. Only set end of burst for the last call to send() within a burst.

Q4.

I believe you have a USRP1. And you should that USRP1 really only
supports a continuous streaming model -> many features are “emulated”.
So you wont get that timed shutoff immediately when a burst ends.

http://files.ettus.com/uhd_docs/manual/html/usrp1.html#missing-and-emulated-features

-Josh

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