Sigmund Augdal schrieb: > tor, 17.04.2008 kl. 23.31 +0200, skrev Hartmut Hackmann: > <snip> >> Do you have a datasheet of the tda10023? From the first glance, i have the >> impression that it was only used with a conventional tuner yet. With the >> silicon tuner, the chip needs to be programmed to use a different IF. We >> beed to find out how this is done. > I don't have any datasheet. I tried playing around with some of the > values in the init-tab, and they do affect the signal levels (signal and > snr) reported, but I haven't managed to find something that does give a > lock. There is also a if_freq variable in the current driver sources > that does not seem to be passed to the chip directly but is used in some > computations. In the current driver this value is selected based on > channel bandwidth (being only used for dvb-t this far). I've tried with > several values for this (8MHz, 0MHz, 4MHz and the currently used 5MHz > for 8MHz bandwidth channels). > > Birr: Do you have any info on this, as you seem to be the last developer > working on that demod? I don't own the datasheet of the TDA10023. I think you must read the configuration of the TDA10023 from windows. This can be done with this program (http://linuxtv.org/downloads/saa7146dump-0.2.zip). If it is necessary to monitor the initialization of the tuner chip, you must use an i2c-monitor. I developed a cheap monitor (http://www.vdr-portal.de/board/thread.php?postid=639818#post639818). The costs of the parts are less then 10€. To build such a monitor, you should know what a soldering-iron is. -Hartmut Birr _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
