From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.work.de ([212.12.32.20]) by www.linuxtv.org with esmtp (Exim 4.63) (envelope-from ) id 1JavPY-00066k-Fs for linux-dvb@linuxtv.org; Sun, 16 Mar 2008 17:08:37 +0100 Message-ID: <47DD45FE.3030702@gmail.com> Date: Sun, 16 Mar 2008 20:08:30 +0400 From: Manu Abraham MIME-Version: 1.0 To: Dominik Kuhlen References: <47BDA96B.7080700@okg-computer.de> <200802292325.17473.dkuhlen@gmx.net> <47C88CBF.7010304@gmail.com> <200803161603.24956.dkuhlen@gmx.net> In-Reply-To: <200803161603.24956.dkuhlen@gmx.net> Cc: linux-dvb@linuxtv.org Subject: Re: [linux-dvb] Need Help with PCTV 452e (USB DVB-S2 device with STB0899) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-dvb-bounces@linuxtv.org Errors-To: linux-dvb-bounces+mchehab=infradead.org@linuxtv.org List-ID: Dominik Kuhlen wrote: > Hi, > > The attached pctv452e.c works for me without frame drops in DVB-S and DVB-S2. > > On Friday 29 February 2008, Manu Abraham wrote: >> Dominik Kuhlen wrote: >>> On Friday 22 February 2008, Dominik Kuhlen wrote: >>>> Hi, >>>> >>>> -----snip---- >>>>> Great, that was the trick, now scanning and szap work fine. >>>>> >>>>> Thanks for that hint! >>>> You're welcome. >>>> >>>> BTW: do you receive broken streams (symbol rate 22000 or 27500)? >>>> Currently I get a loss of about 1 TS packet every second or even more (with both symbol rates). >>>> And there is exactly one TS packet missing (I diffed a TS hexdump). >>>> If it were the USB controller that drops packets it would be a loss of 5 consecutive TS packets. (940 bytes iso frame size) >>> I have to correct that statement (I didn't record the whole TS): >>> The loss is exactly one USB frame (5 consecutive TS packets in this case) >>> which happens about every 1000 TS packets (200 USB frames) > The problem seems to be wrong initial config parameter set in init_s1_demod table. > I copied this table from the mantis 1041 and it seems to be working now. > (I should probably check the USB logs and use these values.) > The first tuning after powerup/init fails quite often for me but the folllowings are fine > even switching from DVB-S to DVB-S2 works like a charm. Nice to know it works great. Should i pull the patch into the multiproto tree to make it easier, since it works as expected ? Also, can you test DVB-S2, a 30MSPS stream whether it works as expected ? (in case you have access to such a transponder ?) Currently, i have mixed results, so some amount of further test results would be quite nice >> Is it really isochronous transfer that the device really uses in it's >> default mode ? I guess many vendors prefer bulk transfers for the >> default transfer mode ? > There's a bulk pipe but it's only used for setup/control afaik. > > > Happy testing, > Dominik > > > BTW: why is the mantis development in a separate HG repo? > I merged the mantis driver to the multiproto repo and can use the > mantis-1041 and pctv452e simultanously :) I do expect quite some changes to the mantis bridge and have been touching very much mantis/bridge specific changes in that tree. Additionally, i plan to push out multiproto prior to mantis, so both in one tree will make it a bit messy. Regards, Manu _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb