[linux-dvb] Re: Continuity Errors with tda10021 ( Re: Distorded video with Cinergy1200 DVB-C)

Kenneth Aafløy lists at kenneth.aafloy.net
Tue Mar 8 13:47:47 CET 2005


On Tuesday 08 March 2005 13:42, slickhenry wrote:
> Robert Schlabbach:
> > I have since bought a Cinergy 1200 DVB-C and wrote a Windows driver for it
> > and ran into the same thing. It appears to be a timing issue between the
> > demodulator and the SAA7146A (rather than a PCI DMA issue): It looks as if
> > sometimes the "SYNC" line goes high so early that the SAA7146A latches in
> > the last (check) byte of the previous packet and subsequently is one byte
> > off on every byte.
> > 
> > Try this: Invert the polarity of the output clock with which the SAA7146A
> > latches in the bytes from the demodulator by _not_ setting the POCLKP bit
> > in the POLA1 register (change the third byte in the third line of the init
> > array from 0xa1 to 0xa0). This seems to cure the issue in my Windows
> > driver.
> > 
> > Please let me know what your results are.
> 
> Thank you very much for your work. 
> 
> This fixed it 100% at my side :) Can we have some more affirmatives and
> get the fix into cvs asap?

Were is the patch? :)

Kenneth




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