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Re: [Discuss-gnuradio] Inconsistency clock + uhd
From: |
Jason Abele |
Subject: |
Re: [Discuss-gnuradio] Inconsistency clock + uhd |
Date: |
Mon, 28 Feb 2011 11:34:51 -0800 |
On Mon, Feb 28, 2011 at 11:18 AM, Julián David Vásquez Gutiérrez
<address@hidden> wrote:
> Hello: I need to use a external clock for the openBTS project and I found an
> inconsistency. I don't know if the changes are for the UDH driver.
>
> In gnuradio:
> http://gnuradio.org/redmine/wiki/gnuradio/OpenBTSClockModifications
>
> In ettus:
> http://www.ettus.com/uhd_docs/manual/html/usrp1.html#linux-setup-udev
>
> The inconsistency is:
>
> gnuradio:
> Move C925 to C926.
> Move R2029 to R2030. This disables the onboard clock. R2029/R2030 is a
> 0-ohm resistor.
>
> ettus:
> Move 0.01uF 0603 capacitor C929 to C926.
> Move 0 ohm 0603 resistor R2029 to R2930
>
It was a typo in the Ettus/UHD documentation, answered previously here:
http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/2011-February/000765.html
and now updated:
http://www.ettus.com/uhd_docs/manual/html/usrp1.html#external-clock-modification