From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailout01.t-online.de ([194.25.134.80]) by www.linuxtv.org with esmtp (Exim 4.63) (envelope-from ) id 1JoPR7-0007cy-TR for linux-dvb@linuxtv.org; Tue, 22 Apr 2008 22:50:02 +0200 Message-ID: <480E4F61.10208@t-online.de> Date: Tue, 22 Apr 2008 22:49:37 +0200 From: Hartmut Hackmann MIME-Version: 1.0 To: linux-dvb@linuxtv.org References: <1160.81.96.162.238.1208023139.squirrel@webmail.elfarto.com> <200804130349.15215@orion.escape-edv.de> <4801DED3.4020804@elfarto.com> <4803C2FA.1010408@hot.ee> <48065CB6.50709@elfarto.com> <1208422406.12385.295.camel@rommel.snap.tv> <34260.217.8.27.117.1208427888.squirrel@webmail.elfarto.com> <4807AFE2.40400@t-online.de> <4807B386.1050109@elfarto.com> <4807C1A6.8000909@t-online.de> <1208862469.7807.7.camel@rommel.snap.tv> <480E0575.1010908@gmail.com> In-Reply-To: <480E0575.1010908@gmail.com> Subject: Re: [linux-dvb] TT-Budget C-1501 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Sender: linux-dvb-bounces@linuxtv.org Errors-To: linux-dvb-bounces+mchehab=infradead.org@linuxtv.org List-ID: hi, e9hack schrieb: > Sigmund Augdal schrieb: >> tor, 17.04.2008 kl. 23.31 +0200, skrev Hartmut Hackmann: >> >>> 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 conf= iguration 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 develope= d a cheap monitor = > (http://www.vdr-portal.de/board/thread.php?postid=3D639818#post639818). T= he costs of the = > parts are less then 10=A4. To build such a monitor, you should know what = a soldering-iron is. > = > -Hartmut Birr > = Looks like we need to make changes in both, tda827x and tda10023. Currently= the 10023 is programmed for 36.13MHz IF frequency. This is *not* possible with the 82= 7x. So we need to implement a configuration option for the tda10023 to select t= he IF center frequency (haven't had the time to have a close look yet) and we need to im= plement a way to let the tda827x driver choose the right parameter set. I would be more interested in the configuration of the tda10023. With the t= da827x, i know what to do. Hartmut _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb