[linux-dvb] Skystar 2 Rev. 2.6D receiving no data

Stefan Lucke stefan at lucke.in-berlin.de
Thu Sep 28 22:15:32 CEST 2006


On Mittwoch 20 September 2006 12:43, Stefan Lucke wrote:
> On Sonntag 17 September 2006 22:40, Stefan Lucke wrote:
> > On Sonntag 17 September 2006 22:09, Patrick Boettcher wrote:
> > > Hi Stefan,
> > > 
> > > On Sun, 17 Sep 2006, Stefan Lucke wrote:
> > > > On Samstag 16 September 2006 19:53, Stefan Lucke wrote:

> > > > My problem is not the bad reception quality. At the moment roubles start,
> > > > I've a non zero BER values.
> > > > The problem is that other channels, which worked previously, now don't work anymore.
> > > > A search in the archive lead me to the thread: Air/SkyStar2 IRQ stop (partial) fix 
> > > > 
> > > > Is it possible that we/I have this problem again ?
> > > 
> > > No. The IRQ stop problem has nothing to do with the reception it is simply 
> > > a data transfer problem. 
> > 
> > As I said: the reception is not my problem. At the moment this happens I looked
> > at Pro7 (dect issue I know) and had a bad picture. Ffmpeg reported a lots of errors.
> > femon showed non zero BER. Then I switched to ARD and had zero BER. So I think
> > tuning to ARD was successful. Tuning back to Pro7 brings non zero BER again.
> > I could could toggle between them with same behavior of BER.
> > That makes me think of: the data transfer just did not start.
> > 
> > One time it recovered. There was a vdr retune followed by a manual retune.
> 
> Fast switching between channles seems to recover this more often.
> 
> I did some traces. The trace log you'll find here:
> http://www.lucke.in-berlin.de/b2c2_log/
> 
> I inserted some comments which could be found by searching for "----" .
> 
> When this condition is met: "if (fc->feedcount == onoff)" data
> transfer is recoverd.

Is there somewhere a document available about the register descriptions
of the b2c2 chip ?
Could it be possible in case of IRQ starvation to restore the complete state
of this device (detaching / reattachng all pid filters)?

-- 
Stefan Lucke



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