Custom Audio cape with TLV320AIC3107 codec.

[prakash....@gmail.com]

Hi,

I have made custom Audio cape using TLV320AIC3107. Here is a circuit diagram : 

I make it same  ( Pin configurations and all ) as what is available at CircuitCO using TLC320AIC3104 codec. I follow All steps like Disable HDMI and Load Device Tree BB-BONE-AUDI-02-00A0.dts  and I it works fine.

But my problem is when I run speaker-test system hangs (freezes) and I have to Hard Reset BeagleBone.

Here is what i did and what I get in dmesg.

root@beaglebone:~# speaker-test 

speaker-test 1.0.25

Playback device is default

Stream parameters are 48000Hz, S16_LE, 1 channels

Using 16 octaves of pink noise

Rate set to 48000Hz (requested 48000Hz)

Buffer size range from 128 to 32768

Period size range from 8 to 2048

Using max buffer size 32768

Periods = 4

And in Dmesg : 

[  205.540653] omap_i2c 4819c000.i2c: Arbitration lost

[  206.572921] omap_i2c 4819c000.i2c: controller timed out

[  206.580024] omap_i2c 4819c000.i2c: Arbitration lost

[  207.611983] omap_i2c 4819c000.i2c: controller timed out

[  207.618668] omap_i2c 4819c000.i2c: Arbitration lost

[  212.626062] omap_i2c 4819c000.i2c: Arbitration lost

[  213.658853] omap_i2c 4819c000.i2c: controller timed out

[  213.666881] omap_i2c 4819c000.i2c: Arbitration lost

[  214.699867] omap_i2c 4819c000.i2c: controller timed out

[  214.707912] omap_i2c 4819c000.i2c: Arbitration lost

[  215.740887] omap_i2c 4819c000.i2c: controller timed out

[  215.748952] omap_i2c 4819c000.i2c: Arbitration lost

I also cross check device tree file and I found that it also works for TLV320AIC3107 codec So I think it is not issue.

An one have Idea what is wrong Please Help ME !!!!

Thanks & Regards 

Prakash P.

[liyaoshi]

Have you config the i2c pin pulled up ?

and 

whats the speed of your i2c bus ?

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[liyaoshi]

Can you show the waveform of your i2c clock and data ?

[Valentin Le bescond]

I'm very interested in how you would solve this issue. We are having a similar problem with a "basic" AIC3104 codec and no idea how to debug the situation.

[Subhendu Biswas]

Definitely it's a problem with the i2c lines, cross check your connections with i2c lines or as suggested above to check the pullups. Issue the following command to see if the chip is detected on the i2c bus or not -

i2cdetect -y -r <i2c_bus_no> 

On Mon, Sep 15, 2014 at 8:15 PM, Valentin Le bescond <valentin....@gmail.com> wrote:

I'm very interested in how you would solve this issue. We are having a similar problem with a "basic" AIC3104 codec and no idea how to debug the situation.

[prakash....@gmail.com]

Hi ,

Thanks for Reply.

I checked it and chip is detected.

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

10: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- 

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- -- 

60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

70: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 

Here 0x18 is chip i2c address.

root@beaglebone:~# cat /sys/bus/i2c/devices/1-0018/name 

tlv320aic3x

I don't what is wrong.

Any Idea ??

Thanks & Regards,

Prakash P.

[prakash....@gmail.com]

HI,

Thanks For reply.

Can you please tell me how I can Do that ?

Thanks & Regards,

Prakash P.

[Prakash Parmar]

frequency of i2c bus as specified in dts is 100 kHz.

On Monday, September 15, 2014 8:01:19 PM UTC+5:30, liyaoshi wrote:

[Prakash Parmar]

Hi, 

I think in Device tree, i2c pin is pulled up. here is part of Tree.

i2c2_pins: pinmux_i2c2_pins {

pinctrl-single,pins = <

0x150 0x72 /*spi0_scl.i2c2_sda,SLEWCTRL_SLOW | INPUT_PULLUP |MODE2*/

0x154 0x72 /*spi0_d0.i2c2_scl,SLEWCTRL_SLOW | INPUT_PULLUP | MODE2*/

>;

};

 

On Monday, September 15, 2014 8:01:19 PM UTC+5:30, liyaoshi wrote:

[Maxim Podbereznyy]

1) change 10k pull-up resistors to 5.6k as for other capes

2) check if SYS_RESET is actually deasserted and high

3) check if DIN/DOUT are correctly connected and not flipped, because DIN data must go into CODEC, while DOUT must go out and vise versa

use this command to test (not speaker-test). Copy/paste it or be sure to use two "v" with the dash
aplay -vv file.wav

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[Maxim Podbereznyy]

what is exactly not clear for you?

how to change resistors or how to copy/paste commands in a shell?

[Prakash Parmar]

Hi,

How I can check this two things ?

2) check if SYS_RESET is actually deasserted and high

3) check if DIN/DOUT are correctly connected and not flipped, because DIN data must go into CODEC, while DOUT must go out and vise versa

I'm not clear about this. Actually I have two Boards one with 10K resistors and one with 4.6K .

Thanks & Regards,

Prakash P.

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[Jesse Cobra]

What happens when you try the CircuitCO audio cape?

Does it work fine?

[Prakash Parmar]

Hi,

Here CircuitCo cape is not available So we decided to make our own.

[Prakash Parmar]

Hi Maxim ,

I try with your suggestion of "aplay -vv test.wav" But still same things. Please find attachment of dmesg log.

Hope listen from you soon. :)

Thanks & Regards,

Prakash P.

[Jesse Cobra]

OK, and what is different between your board and CircuitCo schematic wise?

[Prakash Parmar]

Hi,

Schematic wise both are same.

[Jesse Cobra]

Have the schematic posted somewhere?

Versus this one: http://elinux.org/images/1/11/Audio_Cape_B1_Schematic.pdf

[Prakash Parmar]

Hi, 

PFA of my cape schematic,

[Prakash Parmar]

[Prakash Parmar]

Hope listen from Experts soon.

Thanks & Regards,

Prakash P.

[Jesse Cobra]

Your device tree and schematic are not the same as the CircuitCo one so I would start with that.

http://elinux.org/images/1/10/BB-BONE-AUDI-02-00A0.zip

http://elinux.org/images/1/11/Audio_Cape_B1_Schematic.pdf

[Prakash Parmar]

Thank you very much.

Regards,

Prakash P.

[Prakash Parmar]

Hi Jesse,

Have you anything for me ?

[federico...@gmail.com]

Hi Prakash,

I've the same problem with custom audio cape.

Have you a solution now?

thanks

regards

Federico 

[Prakash Dash]

Hi All,

Can someone please share me the custom audio cape supported in beaglebone black Rev C board.

if anyone have the picture for the custom audio cape board please share that image.

Along with please share the schematic and datasheet for corresponding.

What will be the kernel driver for this AUDIO device please share also.

Thanks

Prakash