[linux-dvb] 682Mhz problem with TT-1501 driver in v4l-dvb

Simon Baxter linuxtv at nzbaxters.com
Tue Jul 22 12:25:43 CEST 2008


Hi - please help!!!!

I have patched the v4l-dvb driver with Sigmund Augdal's changes to support 
C-1501.  I can't get channels to work on all but one frequency - 682Mhz.
Frequencies which work:  578, 586, 594, 602, 610, 626, 634, 642, 666, 674 
Mhz.

I have some channels at 674Mhz and at 682Mhz.  My initial is:
# Initial Testing
# freq sr fec mod
# freq sr fec mod
C 674000000 6900000 AUTO QAM64
C 682000000 6900000 AUTO QAM64


Scanning gives me:
./scan -A 2 test_initial
initial transponder 674000000 6900000 9 3
initial transponder 682000000 6900000 9 3
>>> tune to: 674000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64
0x0000 0x0321: pmt_pid 0x0029 T -- Sky Movies (running, scrambled)
0x0000 0x0322: pmt_pid 0x002a T -- Sky Movies Greats (running, scrambled)
0x0000 0x0323: pmt_pid 0x002b T -- Trackside (running, scrambled)
>>> tune to: 682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64
WARNING: filter timeout pid 0x0011
WARNING: filter timeout pid 0x0030
WARNING: filter timeout pid 0x002d
WARNING: filter timeout pid 0x0029
WARNING: filter timeout pid 0x002f
WARNING: filter timeout pid 0x002a

-------------->>  What does this pid timeout mean??



I end up with channels:

Living 
Channel:674000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:1309:1409:809
UKTV:674000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:1310:1410:810
The Cheese:674000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:0:1420:820
[0385]:682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:0:0:901
[0386]:682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:0:0:902
[0387]:682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:1303:1403:903
[0388]:682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:0:0:904
[0389]:682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:0:0:905


-------------->>  Has picked up the pids, but missing information??



When I try and czap them, I get:

[root at freddy scan]# czap -c ~/.channels.conf.tmp TV3
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
reading channels from file '/root/.channels.conf.tmp'
  2 TV3:578000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:1303:1403:1003
  2 TV3: f 578000000, s 6900000, i 2, fec 9, qam 3, v 0x517, a 0x57b
status 00 | signal 9090 | snr b9b9 | ber 000fffff | unc 00000032 |
status 1f | signal e1e1 | snr f2f2 | ber 000005e8 | unc 000001ec | 
FE_HAS_LOCK
status 1f | signal e1e1 | snr f2f2 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal e1e1 | snr f2f2 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal e1e1 | snr f3f3 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal e1e1 | snr f2f2 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK


but with 682Mhz, I get a lock but loads of errors:

[root at freddy scan]# czap -c ~/.channels.conf.tmp [0385]
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
reading channels from file '/root/.channels.conf.tmp'
  1 [0385]:682000000:INVERSION_AUTO:6900000:FEC_AUTO:QAM_64:0:0:901
  1 [0385]: f 682000000, s 6900000, i 2, fec 9, qam 3, v 0, a 0
status 03 | signal 8f8f | snr b9b9 | ber 000fffff | unc 00000032 |
status 1f | signal cfcf | snr dcdc | ber 000005e8 | unc 000061a7 | 
FE_HAS_LOCK
status 1f | signal cfcf | snr dcdc | ber 000005e8 | unc 000061e8 | 
FE_HAS_LOCK
status 1f | signal cfcf | snr dede | ber 000006c0 | unc 00006234 | 
FE_HAS_LOCK
status 1f | signal cfcf | snr e0e0 | ber 000006a9 | unc 0000627f | 
FE_HAS_LOCK
status 1f | signal cfcf | snr dbdb | ber 000006a5 | unc 000062b6 | 
FE_HAS_LOCK



Any ideas??? 
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