[USRP-users] Time to clear samples in the USRP-N210 buffer

Michael West michael.west at ettus.com
Mon Jul 13 17:02:02 EDT 2015


Hi Vivek,

We can provide more help if you can provide a code sample.  Is your
application using bursts or continuous streaming?  How is your application
coordinating the tuning with the samples received?

Regards,
Michael

On Mon, Jul 13, 2015 at 8:15 AM, Vivek Keviv via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Hi all,
>
> I am vivek, trying to receive different data belongs to different center
> frequency. To make this real, I am using USRP N210 to tune different center
> frequencies. I could receive sample belongs to desired center frequencies.
> But the problem is the samples belong to the previous center frequency
>  remains  for some time at the next center frequency as well. As I have
> very less time for streaming samples at each center frequency, I couldn't
> obtain the correct samples at desired center frequency. To my best
> knowledge, samples from the previous center frequency still remains in the
> hardware buffer these samples only occur in the beginning of next center
> frequency stream.
>
> For example,
>
> the samples belong to Fc1 is 555555555;
> and the samples belong to Fc2 is 77777777;
>
> When I set the center frequency Fc1 it receives 5555555555..... and when I
> tune the center frequency from Fc1 to Fc2 it receives  555557777777......
>  it says that the samples from the previous center frequency still remains
> in the beginning of next freq range.
>
> Can anyone please advise me how to clear this hardware buffer and how long
> it takes to clear the hardware buffer?
>
> Thanks for your time and concern.
>
> _______________________________________________
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> USRP-users at lists.ettus.com
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>
>
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