stb0899 signal strength value in dvb-s2l

DISCUSSION Lutz Sammer 2 participants 2 messages Apr 16, 2011 – Apr 18, 2011 Media (V4L/DVB)

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Lutz Sammer

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2011-04-16 19:07 UTC #0 lore raw

Quoted 10 lines

Hi everyone,
Using a KNC-1 DVB-S2 board I noticed stb0899_read_signal_strength() in stb0899_drv.c always return the same value (1450) in dvb-s2 whatever the signal power is.
It seems STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN) macro always returns zero.
Any idea of what is causing this ?

Try

- reg = STB0899_READ_S2REG(STB0899_DEMOD,
IF_AGC_GAIN);
+ reg = STB0899_READ_S2REG(STB0899_S2DEMOD,
IF_AGC_GAIN);

Than it is working,

Johns

Florent Audebert

2011-04-18 13:31 UTC #1 lore raw

Quoted 9 lines · Lutz Sammer

Quoted 8 lines
Using a KNC-1 DVB-S2 board I noticed stb0899_read_signal_strength() in stb0899_drv.c always return the same value (1450) in dvb-s2 whatever the signal power is.
It seems STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN) macro always returns zero.
Any idea of what is causing this ?

Quoted 8 lines

Try
- reg = STB0899_READ_S2REG(STB0899_DEMOD,
IF_AGC_GAIN);
+ reg = STB0899_READ_S2REG(STB0899_S2DEMOD,
IF_AGC_GAIN);
Than it is working,

Indeed it works. We should commit that.

Thanks for helping !

Signature · 1 line

Florent AUDEBERT