- 29 Dec, 2008 40 commits
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Manu Abraham authored
Bug #1: The 5 tap equaliser is set to correct simple perturbations like reflections on the IF cable for DVB-S. In the case of DVB-S2 a more powerful equalizer is used to correct the filter group delay allowing the bandwidth to be reduced by a factor of 1/3 Bug #2: The ZIF tuner takes badwidth to be set in Hz Signed-off-by:
Manu Abraham <manu@linuxtv.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Manu Abraham authored
Note: * At High Symbol Rates we do not have enouph machine cycles to handle the incoming symbols and hence might run into problems at the very end of the specified definition * Most of the equations have been calculated for a master clock of 99 MHz, running at 90MHz, raises lot of issues such as the need to recalculate all of them , which is eventually very painful. Signed-off-by:
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Manu Abraham authored
Thanks to Marko Schluessler <marco@lordzodiac.de> for pointing it out Signed-off-by:
Marko Schluessler <marco@lordzodiac.de> Signed-off-by:
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Arvo Jarve authored
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Arvo Jarve <arvo@softshark.ee> Signed-off-by:
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Manu Abraham authored
The Bug was found by Arvo Jarve <arvo@softshark.ee> It was a wonder how it worked in the case with this bug, STM verified this that this nibble was in fact insignificant and can be ignored. But still we need to fix all inconsistencies. Signed-off-by:
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Arvo Jarve authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Arvo Jarve authored
In this case, we will be sure that there exists a carrier and the center frequency would be simply f1 - f2. In such a circumstance, the TR loop is simplified to doing a simple check for timing, rather than searching for the same. Signed-off-by:
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Arvo Jarve authored
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Manu Abraham authored
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Arvo Jarve authored
BUG! Setting CRL parameter overwrote the CR Algorithm type, eventually leading to wrong search algorithm to be employed in the DVB-S carrier loop optimization. Symptom: Once the CR optimization stage is passed either way, in a successful or failed manner, the very next carrier search will fail, due to no Carrier Search Algorithm specified. Signed-off-by:
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Arvo Jarve authored
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Marko Schluessler authored
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Manu Abraham authored
* Saves 70 mS LOCK time on the STB6100 based * Saves 100 mS LOCK time on the TDA8261 based Signed-off-by:
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
which should have happenend in the DVB-S2 mode only, but reading it as it is for the other delivery systems causes nothing to say but LOCK_LOST, which just causes confusion amongst users. Signed-off-by:
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Manu Abraham authored
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Manu Abraham authored
Thanks to Peter for the in depth explanation Signed-off-by:
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
Need some thoughts, temporary for now .. Signed-off-by:
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
We need to check for tuner LOCK LOSS, especially in the case of simple PLL's Signed-off-by:
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Manu Abraham authored
* Reduces szapping time a lot * increased stability at Low Symbol rates * overall increases reliability in tuning Signed-off-by:
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Marko Schluessler authored
probably should stop fiddling with code late nights. :-( Thanks to Marco for pointing it out and fixing it. Signed-off-by:
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Manu Abraham authored
V4L/DVB (9405): Practical tests show that the TT S2 3200 has I/Q inputs inverted, similar to the KNC1. Don't have this hardware and cannot verify this for myself, but from the reports this looks to be quite a reasonable and correct hypothesis. Signed-off-by:
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Manu Abraham authored
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Manu Abraham authored
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