[linux-dvb] Re: [P7131 Dual] scan : tuning failed

Frédéric Massot frederic at juliana-multimedia.com
Fri Dec 1 10:56:27 CET 2006


tomlohave at gmail.com wrote:
> 
>> I also tested with the file modified according to the trick of Hermann 
>> Pitton (add a positive offset of 167000Hz) :
> 
> Hello
> 
> Try with + 166000 Hz if you are in france
> 
> look here : http://doc.ubuntu-fr.org/materiel/tnt
> 

Hi,

I made a success of with scan the channels with a vanilla Linux kernel 
2.6.18 and the master v4l-dvb development repository (downloaded the 
28/11/2006). I did not need to use kradio before.  :o)

The firmware loaded correctly :

Linux video capture interface: v2.00
saa7130/34: v4l2 driver version 0.2.14 loaded
saa7133[0]: found at 0000:05:03.0, rev: 209, irq: 169, latency: 64, 
mmio: 0xff7ff000
saa7133[0]: subsystem: 1043:4876, board: ASUSTeK P7131 Dual 
[card=78,autodetected]
saa7133[0]: board init: gpio is 40000
saa7133[0]: i2c eeprom 00: 43 10 76 48 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
saa7133[0]: i2c eeprom 10: ff ff ff 0f ff 20 ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 20: 01 40 01 02 03 01 01 03 08 ff 00 d5 ff ff ff ff
saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 40: ff 21 00 c2 96 10 03 32 55 50 ff ff ff ff ff ff
saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
tuner 1-004b: chip found @ 0x96 (saa7133[0])
tuner 1-004b: setting tuner address to 61
tuner 1-004b: type set to tda8290+75a
saa7133[0]: registered device video0 [v4l2]
saa7133[0]: registered device vbi0
saa7133[0]: registered device radio0
DVB: registering new adapter (saa7133[0]).
DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
saa7134 ALSA driver for DMA sound loaded
saa7133[0]/alsa: saa7133[0] at 0xff7ff000 irq 169 registered as card -1
tda1004x: setting up plls for 48MHz sampling clock
tda1004x: timeout waiting for DSP ready
tda1004x: found firmware revision 0 -- invalid
tda1004x: waiting for firmware upload...
tda1004x: found firmware revision 29 -- ok
tda1004x: setting up plls for 48MHz sampling clock
tda1004x: found firmware revision 29 -- ok
tda1004x: setting up plls for 48MHz sampling clock
tda1004x: found firmware revision 29 -- ok


The problem came from the initial scan file fr-Vannes. I tested all the 
files for France with this script:

#! /bin/bash
for t in /usr/share/doc/dvb-utils/examples/scan/dvb-t/fr-*; do
    /usr/bin/scan $t
done

And, I found two frequencies which run :
- fr-Orleans : 674166000
- fr-Toulouse : 698167000

There are two problems in the file fr-Vannes, the frequency can be 
shifted of 166000 or 167000 and especially the value of the 
"guard-interval" must be "1/32" and not "1/8".

I will search which is best shift 166000 or 167000, and I will post the 
good file.


Regards.
-- 
==============================================
|              FREDERIC MASSOT               |
|     http://www.juliana-multimedia.com      |
|   mailto:frederic at juliana-multimedia.com   |
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