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Re: [Discuss-gnuradio] available sample rates for USRP2
From: |
Josh Blum |
Subject: |
Re: [Discuss-gnuradio] available sample rates for USRP2 |
Date: |
Tue, 25 Oct 2011 18:20:56 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 |
On 10/25/2011 06:18 PM, Kyle Zhou wrote:
> When I use uhd_fft.py -s 8M -f ..
>
> It reported that
>
> UHD Warning:
>
> The hardware does not support the requested RX sample rate:
>
> Target sample rate: 8.000000 MSps
>
> Actual sample rate: 7.692308 MSps
>
>
>
> I am wondering how the actual rate 7.692308M is determined?
>
> Is there any formula that I can use to ascertain that a given sample rate is
> available on USRP2?
>
Only integer divisor rates of the master clock is possible. In this case
100Mhz/decimation = sample rate.
Querying the possible sample rates will be part of my next API revision.
-Josh