[linux-dvb] Terratec Cinergy 1200 DVB-C and QAM 128
js at linuxtv.org
Sun Jun 19 14:21:06 CEST 2005
On Thu, Jun 16, 2005 at 10:54:05PM +0200, Johannes Stezenbach wrote:
> timo.helkio at nic.fi wrote:
> > I managed to get this card working with QAM 128 channels by changing
> > 174500000 to 150000000 in budget-av.c (code extract below). Free
> > channels are here in Uusikaupunki using freq. 154 and 170 MHz and all
> > QAM 128. Maybe this has been solved earlier, but there has not been any
> > postings about it.
> > #define TUNER_MUL 62500
> > u32 div = (params->frequency 36125000 TUNER_MUL / 2) / TUNER_MUL;
> > buf = (div >> 8) & 0x7f;
> > buf = div & 0xff;
> > buf = 0x8e;
> > buf = (params->frequency < 174500000 ? 0xa1 :
> > params->frequency < 454000000 ? 0x92 : 0x34);
> How does this perform in comparison?
> buf = 0x86;
> buf = (params->frequency < 150000000 ? 0x01:
> params->frequency < 445000000 ? 0x02 : 0x04);
I comitted the latter to CVS.
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