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Re: [Discuss-gnuradio] How to set a master clock rate on USRP B200


From: Marcus Müller
Subject: Re: [Discuss-gnuradio] How to set a master clock rate on USRP B200
Date: Mon, 26 May 2014 08:43:14 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

There is a device args field in the current version of GNU Radio, so this might be where the confusion comes from.
On 26.05.2014 05:41, Marcus D. Leech wrote:
On 05/25/2014 11:39 PM, jason sam wrote:
"device args" parameter is not in the UHD USRP source/sink block?There is only 'Device addr'

Sorry, I meant Device Addr



On Fri, May 23, 2014 at 9:39 PM, Marcus D. Leech <address@hidden <mailto:address@hidden>> wrote:

    On 05/23/2014 12:23 PM, raf raf wrote:
    Hello All Gnu Radio user,

    To use a 2 TX, I want to change a clock rate to an accepted one,
    under 30.72 MHz. I use the API with uhd_usrp_probe and it works
    only for this command. Can you give me the idea or python code to
    use this argument parameter with a python flowgraph?

     --args="master_clock_rate=28"

    Thanks.


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    In GRC, where it has a "device args" parameter, that's wher this
    master_clock_rate=28e6  should go.  I assume you meant 28e6,
    rather than 28.
      Everything is in Hz, and there's no way the B200 can go down to
    a clock rate of 28Hz.



    --     Marcus Leech
    Principal Investigator
    Shirleys Bay Radio Astronomy Consortium
    http://www.sbrac.org


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