TLV320AIC3212: Sound coming in headphones but not in speaker.

Vishal Maheshwari

Part Number: TLV320AIC3212
Other Parts Discussed in Thread: AM5728, , TLV320AIC3262

Hi,

I purchased a tlv320aic3212 audiocodec EVM from TI and tested it using the CodecControl software from the link: - https://www.ti.com/lit/zip/slac523.

I am able to play sounds from headphone and speaker from the audiocodec EVM using the example configurations in the CodecControl software.

I have also been able to successfully port tlv320aic326x.c driver for tlv320aic3212 audiocodec on my custom board based on am5728 SOC.

I downloaded Headphone playback script from TLV320AIC3212EVM-U Evaluation Module User's guide and ported it for linux for my custom board and I am able to hear sound from headphones (attached to headphone jack attahced to the audiocodec on my custom board).

Now when I run class-D speaker playback script (downloaded from the Example configurations of the CodecControl Software) which I ported for my custom board, I still hear the sound from headphones and not the speaker. I am attaching both the shell scripts in .txt format

Fullscreen headphone.txt Download

#sw reset
i2cset -f -y 3 0x18 0x00 0x00
i2cset -f -y 3 0x18 0x7f 0x00
i2cset -f -y 3 0x18 0x01 0x01

#clock config
i2cset -f -y 3 0x18 0x04 0x00
i2cset -f -y 3 0x18 0x0b 0x81
i2cset -f -y 3 0x18 0x0c 0x82
i2cset -f -y 3 0x18 0x0d 0x02
i2cset -f -y 3 0x18 0x0e 0x00

#codec initialize
i2cset -f -y 3 0x18 0x00 0x01
i2cset -f -y 3 0x18 0x01 0x00
i2cset -f -y 3 0x18 0x7a 0x01

#ASI config
i2cset -f -y 3 0x18 0x00 0x04
i2cset -f -y 3 0x18 0x01 0x20
i2cset -f -y 3 0x18 0x0a 0x00

#signal processing

i2cset -f -y 3 0x18 0x00 0x00
i2cset -f -y 3 0x18 0x3c 0x01

#dac config
i2cset -f -y 3 0x18 0x00 0x01
i2cset -f -y 3 0x18 0x03 0x00
i2cset -f -y 3 0x18 0x04 0x00
i2cset -f -y 3 0x18 0x1f 0x80
i2cset -f -y 3 0x18 0x20 0x00
i2cset -f -y 3 0x18 0x21 0x28
i2cset -f -y 3 0x18 0x23 0x10
i2cset -f -y 3 0x18 0x1b 0x33
i2cset -f -y 3 0x18 0x00 0x00
i2cset -f -y 3 0x18 0x3f 0xc0
i2cset -f -y 3 0x18 0x40 0x00

Fullscreen classD.txt Download

#sw reset                               
i2cset -f -y 3 0x18 0x00 0x00           
i2cset -f -y 3 0x18 0x7f 0x00           
i2cset -f -y 3 0x18 0x01 0x01           
                                        
#clock configuration                    
i2cset -f -y 3 0x18 0x04 0x00
i2cset -f -y 3 0x18 0x0b 0x81
i2cset -f -y 3 0x18 0x0c 0x82
i2cset -f -y 3 0x18 0x0d 0x00
i2cset -f -y 3 0x18 0x0e 0x80

#initialize the codec
i2cset -f -y 3 0x18 0x00 0x01
i2cset -f -y 3 0x18 0x01 0x00
i2cset -f -y 3 0x18 0x7a 0x01



#ASI config
i2cset -f -y 3 0x18 0x00 0x04
i2cset -f -y 3 0x18 0x01 0x00
i2cset -f -y 3 0x18 0x0a 0x00

#signal processing

i2cset -f -y 3 0x18 0x00 0x00
i2cset -f -y 3 0x18 0x3c 0x01

#DAC configurations
i2cset -f -y 3 0x18 0x00 0x01
i2cset -f -y 3 0x18 0x03 0x00
i2cset -f -y 3 0x18 0x04 0x00

i2cset -f -y 3 0x18 0x24 0x7f
i2cset -f -y 3 0x18 0x25 0x7f
i2cset -f -y 3 0x18 0x1c 0x7f
i2cset -f -y 3 0x18 0x1d 0x7f


i2cset -f -y 3 0x18 0x16 0xc0
i2cset -f -y 3 0x18 0x2e 0x00
i2cset -f -y 3 0x18 0x2f 0x00


i2cset -f -y 3 0x18 0x00 0x00
i2cset -f -y 3 0x18 0x3f 0xc0

i2cset -f -y 3 0x18 0x00 0x01
i2cset -f -y 3 0x18 0x16 0xc3
i2cset -f -y 3 0x18 0x30 0x41

i2cset -f -y 3 0x18 0x00 0x00
i2cset -f -y 3 0x18 0x40 0x00

i2cset -f -y 3 0x18 0x00 0x01
i2cset -f -y 3 0x18 0x2d 0x03

Can anyone help me resolve this issue ??

Regards

Vishal Maheshwari

over 4 years ago

0 Sanjay Dixit over 4 years ago

TI__Mastermind 23030 points

Shall reply by August 3.

0 Sanjay Dixit over 4 years ago

TI__Mastermind 23030 points

Sorry for the delay..

Try Setting i2cset -f -y 3 0x18 0x30 0x00.

Volume level may be too low.

Otherwise I2C Listing seems good for 48khz Input on Interface. The same input works for headphone so i doubt if there is an issue with

clocking.

If volume setting does not resolve, you may have a board issue.

Best regards

Sanjay

0 Sanjay Dixit over 4 years ago in reply to Sanjay Dixit

TI__Mastermind 23030 points

I am sorry there is a typo

Try Setting i2cset -f -y 3 0x18 0x30 0x44.

Also try loading script into evm with same audio source and hear sound to confirm script.

Some other questions:

1. What is the speaker impedance you are using?

2. Are you using a 48khz sample rate input for speaker test.

Can you send us your schematic?

www.ti.com/.../slau360

You can try the I2C listing for Class D in the document below.

https://www.ti.com/lit/pdf/slau360

0 Vishal Maheshwari over 4 years ago in reply to Sanjay Dixit

Expert 1030 points

Hi, I am successfully able to play sound from speakers as well. Basically, one of its register values was not set properly.

0 Vishal Maheshwari over 4 years ago in reply to Vishal Maheshwari

Expert 1030 points

Hi,

I have another query regarding audiocodec 3212.

It is regarding headset detection.

According to tlv320aic3212_ApplicationRefGuide.pdf, page no. 124 , the 67th register's 7th bit has to be set to 1 in order to enable headset detection.

So I have done that. Now if a headset is inserted then the 46th register should give a value 0x10 and if a headset is removed then it should change to 0x00. But it always shows 0x10 irrespective of whether a headset is inserted or removed.

Could you help in resolving this issue ?

Thanks!

0 Vishal Maheshwari over 4 years ago in reply to Vishal Maheshwari

Expert 1030 points

Hi Sanjay Dixit ,

Awaiting you reply !

0 Sanjay Dixit over 4 years ago in reply to Vishal Maheshwari

TI__Mastermind 23030 points

Hi Vishal,

Can you measure the resistance of the speakers in the headset with a multimeter? It should be between 16 ohm and 300 ohm.

You can even try connecting a 33 ohm to try simulate a headset.

. Connect the mic and then try plugging the headset in and out. Check also if something changes in register 37.

You can try the following.

0 Vishal Maheshwari over 4 years ago in reply to Sanjay Dixit

Expert 1030 points

Hi Sanjay Dixit,

Headset detection is working fine. There was an incorrect jumper setting.

Now, I am able to route the INT1 interrupt (generated when headset is inserted/removed) to GPIO1 by setting the B0_P4_R86 value to 0x16.

Can you help me detect this interrupt in the device driver ? I am attaching the device driver 's code. In it there is a function as follows:-

request_threaded_irq(aic3262->irq, NULL,
aic3262_jack_handler,
IRQF_TRIGGER_FALLING,
"tlv320aic3262", component);

Basically, when an interrupt occurs aic3262_jack_handler should get called. Currently it is not happening. I think it is because of aic3262->irq's value. Please help!

tlv320aic326x.c

0 Vishal Maheshwari over 4 years ago in reply to Vishal Maheshwari

Expert 1030 points

Hi Sanjay Dixit,

Awaiting your reply! Please guide in some way! Thanks!

0 Sanjay Dixit over 4 years ago in reply to Vishal Maheshwari

TI__Mastermind 23030 points

Hi Vishal,

I am not familiar with device drivers.

Audio

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TLV320AIC3212: Sound coming in headphones but not in speaker.