[linux-dvb] Support for Technotrend DVB-C CI budget card
Andrew de Quincey
adq_dvb at lidskialf.net
Fri Aug 5 15:57:42 CEST 2005
On Friday 05 Aug 2005 13:48, Simo Kivimäki wrote:
> Andrew de Quincey wrote:
> > On Wednesday 27 July 2005 16:39, Simo Kivimäki wrote:
> >>Andrew de Quincey wrote:
> >>>Argh. there were reports before that the STV0297 driver didn't like
> >>>QAM-128. I don't have access to any QAM128 signals (was testing with
> >>Ok, any ideas how to get it work? I have only QAM128 signals here.
> > Hmm, basically someone with access to a QAM256 signal has to fiddle with
> > the code until it works :(
> Now I get the card tuned with QAM128 but it's quite slow. I increased
> timeouts much (+5 s and +10 s for main lock). Latest CVS version is in use.
> And I changed:
> stv0297_writereg_mask(state, 0x88, 0x08, 0x08);
> to stv0297_writereg_mask(state, 0x88, 0x08, 0x00);
> as proposed in:
> Usually it gets nicely pass "equaliser full convergence" timeout but
> main lock is more difficult to accomplish.
> Could you give any hints for further debug? Any register values that I
> could try to change?
I don't have access to any QAM128 signals
> Is there any specifications somewhere that would help? How about
> investigating what register values Windows driver uses. Is it for
> example possible to read them from the i2c bus?
OK, what is the reliability like for >QAM64 under windows?
There is a way to sniff the i2c bus yes:
This is a very simple parallel port based i2c sniffer - the guy who gave me
ssh access to his box in order to develop the new budget CI card used it on
his windows PC, and the trace was invaluable.
More information about the linux-dvb