On Thu, Apr 16, 2009 at 09:05:50PM +, Juha Vierinen wrote:
>
> How about overflows. What is the probability that a USRP2 will drop
> samples guring 24 h of 10 MHz receiving when connected directly to a
> computer? I guess there is no mechanism that guarantees that the data
> is delivered, but
>> Similar issues exist on the transmit side.
Ok.
> Actually they are quite different. When we assert flow control, we flow
> control _everything_ upstream between the USRP2 and the host. Unless
> you want your network to die, die, die, don't put a switch between
> the USRP2 and the host if you
On Thu, Apr 16, 2009 at 08:34:25AM -0700, Johnathan Corgan wrote:
>
> Similar issues exist on the transmit side.
Actually they are quite different. When we assert flow control, we flow
control _everything_ upstream between the USRP2 and the host. Unless
you want your network to die, die, die, d
On Thu, Apr 16, 2009 at 03:13:51PM +, Juha Vierinen wrote:
>
> Off topic: We have been playing around with my USRP2 and it seems very
> nice. I noticed that even though the FAQ strongly discourages
> connecting the USRP2 to your main network, it does actually work. We
> have a fairly large LAN
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Forgot to copy the list:
Eric Blossom wrote:
> On Tue, Apr 14, 2009 at 02:19:38PM -0500, Douglas Geiger wrote:
>
> Doug,
>
> I wouldn't expect the time stamps in the streams to start at the same
> point (the start_rx_streaming command doesn't accept a
lf Of Juha
Vierinen
Sent: Thursday, April 16, 2009 11:14 AM
To: discuss-gnuradio@gnu.org; Eric Blossom
Subject: Re: [Discuss-gnuradio] Timestamps, data rates
> I wouldn't expect the time stamps in the streams to start at the same
> point (the start_rx_streaming command doesn't a
On Thu, 2009-04-16 at 15:13 +, Juha Vierinen wrote:
> How accurate is sync_to_pps? Can you do MIMO with just sync_to_pps
> (assuming your cables are equal length)?
Yes. Two USRP2s synced to the same 10 MHz reference and PPS will have
sampling times accurate to the PPS arrival time, and will
> I wouldn't expect the time stamps in the streams to start at the same
> point (the start_rx_streaming command doesn't accept a "start at
> time T argument). I would expect that there is a constant delta_t
> between subsequent frames, and that that delta_t would be the same for
> both of the USRP
On Tue, Apr 14, 2009 at 02:19:38PM -0500, Douglas Geiger wrote:
> I'm running some experiments with my two USRP2's - as I want to get
> synchronized samples out of them. I have the clock's locked to my
> external 10Mhz, and they sync_to_pps correctly (i.e. the timestamp
> resets on the next PPS).
