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Re: [Discuss-gnuradio] UHD underrun problem
From: |
Josh Blum |
Subject: |
Re: [Discuss-gnuradio] UHD underrun problem |
Date: |
Tue, 20 Dec 2011 08:35:07 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111124 Thunderbird/8.0 |
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