[linux-dvb] [PATCH] TT S2-3200: Support for high symbol rates.

Igor M. Liplianin liplianin at tut.by
Sat Nov 22 18:41:56 CET 2008


> Igor M. Liplianin wrote:
> > TT S2-3200: Support for high symbol rates.
> >
> > From: Igor M. Liplianin <liplianin at me.by>
> >
> > TT S2-3200: Support for high symbol rates.
> > Successfully tested for 44948 kSym/s
> >
> > Signed-off-by: Igor M. Liplianin <liplianin at me.by>
> >
> >
> > ------------------------------------------------------------------------
> >
> > # HG changeset patch
> > # User Igor M. Liplianin <liplianin at me.by>
> > # Date 1226180014 -7200
> > # Node ID 1c4d63e589e0420d95d96bf81d3bfbb2cd39a9cf
> > # Parent  54b128d638438037c7cb4417045c0d773c21d9e7
> > TT S2-3200: Support for high symbol rates.
> >
> > From: Igor M. Liplianin <liplianin at me.by>
> >
> > TT S2-3200: Support for high symbol rates.
> > Successfully tested for 44948 kSym/s
> >
> > Signed-off-by: Igor M. Liplianin <liplianin at me.by>
> >
> > diff -r 54b128d63843 -r 1c4d63e589e0
> > linux/drivers/media/dvb/ttpci/budget-ci.c ---
> > a/linux/drivers/media/dvb/ttpci/budget-ci.c	Sun Nov 09 16:35:13 2008
> > +0200 +++ b/linux/drivers/media/dvb/ttpci/budget-ci.c	Sat Nov 08 23:33:34
> > 2008 +0200 @@ -1321,7 +1321,7 @@
> >  	.inversion		= IQ_SWAP_ON, /* 1 */
> >
> >  	.lo_clk			= 76500000,
> > -	.hi_clk			= 99000000,
> > +	.hi_clk			= 135000000,
> >
> >  	.esno_ave		= STB0899_DVBS2_ESNO_AVE,
> >  	.esno_quant		= STB0899_DVBS2_ESNO_QUANT,
>
> The STB0899 is never rated to run at 135MHz clock. Some older die cuts
> would even cause clock race arounds at even 108MHz. The recommended
> maximum clock is 99 MHz at maximum.
>
> Is your STB0899 demodulator still functional, what inscriptions are
> there on the demodulator ? I mean continuously running with this Clock
> for a day or two at least .. ?
>
> Regards,
> Manu

Only couple hours per day. Вut every day
And still functional :)

-- 
Igor M. Liplianin
Microsoft Windows Free Zone - Linux used for all Computing Tasks



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