BS-11 PLL clock source / calibration

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Harald Welte laforge at gnumonks.org
Wed Apr 29 13:29:43 UTC 2009


Hi all,

On Tue, Apr 28, 2009 at 06:31:44PM +0200, Harald Welte wrote:
> On Fri, Apr 17, 2009 at 08:07:44PM +0200, Dieter Spaar wrote:
> 
> > > We could add this setting to the bs11_config program so people can try if
> > > their E1 clock or their [10 years uncalibrated] BS11 internal oscillator is
> > > better.
> > 
> > I did a quick test with this setting and it seems to work fine
> > with the BS-11 (so we should not believe the documentation ;-).
> > 
> > Here is the LMT dump for the PLL Mode, it can be changed during
> > normal operation:
> > 
> >   ; Locked
> >   Tx D0A5070000FC0102
> >   Rx D1A5070000FC0102
> > 
> >   ; Standalone
> >   Tx D0A5070000FC0103
> >   Rx D1A5070000FC0103
> 
> I have created a patch for bs11_config to emit those two messages. It's
> attached to this mail, but I haven't had time to test it yet.
> 
> However, since it doesn't change any common code paths, I have committed it.
> It would be great if somebody could do some testing if this actually works.

I've tested (+fixed) it now.  'query' now also shows the current PLL Mode
configuration  (as of SVN rev. 455)

-- 
- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
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