TAS2110: I2C command

Takashi Yamaguchi

Part Number: TAS2110

Hi team,

My customer is evaluating the TAS2110 on their trial board. Could you support the question below?

Customer sent the following command to TAS2110 by I2C, but last command(w 98 02 0c) wasn't reflected and couldn't transition to the Active state. When customer READ 0x02 after sending last command(w 98 02 0c), the value remained 0e.

w 98 01 01

w 98 02 0e

w 98 03 10

w 98 08 1a

w 98 12 13

w 98 34 41

w 98 35 94

w 98 40 64

w 98 02 0c

In addition, SDZ is High, IRQZ is also High, and the writing of other commands and reading of registers are successful.

Could you let me know if there are any missing send commands and hardware settings? Also, could you let me know if there are registers that should be read in I2C to solve this problem.

Also, the GPIO pin is currently set to floating, but could you tell me the role of this pin?

Regards,

Yamaguchi

over 3 years ago

0 Ivan Salazar over 3 years ago

TI__Guru* 98235 points

Hi Yamaguchi-san,

I would suggest to use a cfg file generated from End System Integration panel within TAS2110 PPC3 app.

Could you read registers 0x24 and 0x25? These are the latched interrupt flags, these help to know if there was any interrupt being triggered.
If possible, please also inspect the power supplies: VBAT, VDD, PVDD

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Luis Fernando Rodriguez S. over 3 years ago

TI__Guru* 84915 points

Hi, Yamaguchi-san,

Our team will take a look at this thread and will provide an answer as soon as possible.

Thank you.

Best regards,
Luis Fernando Rodríguez S.

0 Takashi Yamaguchi over 3 years ago in reply to Luis Fernando Rodriguez S.

TI__Genius 11560 points

Hi Luis-san,

Thank you for your team's support. I will wait the further answer.

Regards,

Yamaguchi

0 Luis Fernando Rodriguez S. over 3 years ago in reply to Takashi Yamaguchi

TI__Guru* 84915 points

Hi, Tamaguchi-san,

Besides the response provided by Ivan, do you need additional information?

Thank you.

Best regards,
Luis Fernando Rodríguez S.

0 Takashi Yamaguchi over 3 years ago in reply to Luis Fernando Rodriguez S.

TI__Genius 11560 points

Hi Ivan-san, Luis-san,

Thank you for your support. I received the feedback from the customer.

Customer is using cfg file generated from PPC3, but customer will double check the contents just in case.

Customer has another question.

Customer would like to input the I2C signal generated by EVM to their board. There is a problem that the TAS2110 on their board cannot be recognized.
(Slave address is 0x4C, which is the same as EVM.)

Customer has removed the JP of J9/J11 on the EVM and connected Pin1 of J9 and Pin1 of J11 and the IRQ to their board with a harness, converted to 1.8V and input to the TAS2110. Is there any signal other than the I2C signal that should be connected in order for the PPC3 to recognize the TAS2110 on their board?

Regards,

Yamaguchi

0 Ivan Salazar over 3 years ago in reply to Takashi Yamaguchi

TI__Guru* 98235 points

Hi Yamaguchi-san,

Please make sure to also share GND between the boards when testing the I2C signals.

What about the flags I mentioned on the first reply? Did customer read those registers?

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Ivan Salazar over 3 years ago in reply to Ivan Salazar

TI__Guru* 98235 points

Hi Yamaguchi-san,

Do you have any comments about my last question above?

Thanks and Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Takashi Yamaguchi over 3 years ago in reply to Ivan Salazar

TI__Genius 11560 points

Hi Ivan-san,

Thank you for your support. I will get back to you when I get the feedback from the customer.

Regards,

Yamaguchi

0 Ivan Salazar over 3 years ago in reply to Takashi Yamaguchi

TI__Guru* 98235 points

Hi Yamaguchi-san,

I'll be waiting for your additional information.
Thanks.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Ivan Salazar over 3 years ago in reply to Ivan Salazar

TI__Guru* 98235 points

Hi Yamaguchi-san,

I'll close this thread for now, it has been open for quite some time now.
Please post a new thread when you have further information from customer, or you can reply to this one and I'll split it into a new one.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

Audio

Audio forum

TAS2110: I2C command