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:
>
> Have you config the i2c pin pulled up ?
> and
> whats the speed of your i2c bus ?
>
> 2014-09-15 2:09 GMT+08:00 <[email protected] <javascript:>>:
>
>> Hi,
>>
>> I have made custom Audio cape using TLV320AIC3107. Here is a circuit
>> diagram :
>>
>>
>> <http://e2e.ti.com/cfs-file.ashx/__key/telligent-evolution-components-attachments/00-64-01-00-01-29-55-62/audio.png>
>>
>>
>> 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.
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
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>
>
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