Linux/PCM9211: I2S Dout have no data output

Hi Erlei,
Welcome to e2e forum!

Can you please share the config file that you are using for this routing?

To clarify, what you are trying to do is route S/PDIF input on RXIN3 and expect I2S on main output port. Is my understanding correct?
If yes, I'll be more than happy to share the correct configuration for the same. Please let me know.

Thanks and Best regards,
Ravi

Hi Ravi,

Thanks for the reply!

Yes, your understanding is correct.

I have four input source，RXIN0,RXIN2,RXIN3,VINR/VINL. I'm trying to route them and expect I2S on main output port Separately.

Another, how can I know witch one of them is inserted? how pcm9211 can inform me when one S/PDIF input on RXINx is inserted?

my config:

static struct router_rxin3_to_main_out_config[] = {

{0x40, 0x33},

{0x40, 0xc0},

{0x31, 0x1a},

{0x32, 0x22},

{0x33, 0x22},

{0x24, 0x00},

{0x26, 0x81},

{0x33, 0x22},

{0x21, 0x00},

{0x22, 0x01},

{0x23, 0x00},

{0x27, 0x00},

{0x2f, 0x04},

{0x30, 0x02},

{0x32, 0x22},

{0x34, 0xc3},

{0x37, 0x00},

{0x6a, 0x00},

{0x6b, 0x11},

{0x6d, 0x00},

};

Thanks and Best regards,
ErLei

Hi ErLei,

I just tested the SPDIF->RXIN3->DIR->MainOutput (I2S) using the below script -

#REG 34h DIR Input Biphase Signal Source Select and RXIN01 Coaxial Amplifier

#PWR down amplifier, select RXIN3

w 80 34 C3

#--------------------------Start MainOutput Settings---------------------------

#MainOutput

#REG. 6Ah, Main Output & AUXOUT Port Control

w 80 6A 00

#REG. 6Bh, Main Output Port (SCKO/BCK/LRCK/DOUT) Source Setting | Select DIR as SCK Source & BCK/LRCK/DATA Source

w 80 6B 11

#REG. 6Dh, MPIO_B & Main Output Port Hi-Z Control

w 80 6D 00

I do see DOUT without any issues. I did input 1kHz tone at 48kHz sampling rate and was able to analyze the output using AP. I did briefly evaluate the specific registers listed above and you seem to be have the right values configured.

Let me review the rest of the register values to see if there is any disconnect.

As far as detecting which RXIN has S/PDIF, unfortunately we do not have an ability to inform which input has S/PDIF signal present. Thanks. 

I alsotested the SPDIF->RXIN3->DIR->MainOutput (I2S) only using the below script:
---------------
w 80 34 c3
w 80 6a 00
w 80 6b 11
w 80 6d 00
--------------
I did input 1kHz tone at 48kHz sampling rate.
The phenomenon(Oscilloscope measurement):
bclk：3.072M
lrck：48K
DOUT：nothing