On Tuesday 19 July 2005 21:50, Johannes Stezenbach wrote: > Jeremy Hall wrote: > > I am looking at some code that attempts to change the voltage within 8ms. > > I recently swapped out my legacy dvb/s card for one of these 2.3 cards > > which I understand has a different tuner on it, although it is integrated > > into the stv0299 driver. > > > > Could someone point me to a document or explain to me how the 0x08 and > > 0x0c registers work? The tuner is definitely the newer model, as when the > > vertical polarity is set, the mask is 0x10, not 0x40 as in legacy tuners. > > I am getting sporatic responses and am thinking that somehow we're not > > quite getting it right, and maybe a subsequent retransmission of a > > command clears up the problem. > > The registers are described in the stv0299 data sheet, but that > alone doesn't help you because you need to know the circuit around > the stv0299 to set them. This should be specifed in the frontend > (tin box) data sheet. Or else get a voltmeter and beep out the connections between the chips :)
