TAS6424L-Q1: How do i config the register

user5842894

Prodigy 60 points

Part Number: TAS6424L-Q1

1.How to simply configure the register so that the power amplifier works properly, can sound immediately.

2.How do i config the SAP contorl register input format is TDM mode .there is no TDM mode.

over 5 years ago

0 Shawn Zheng over 5 years ago

TI__Mastermind 24835 points

Hi Ace,
The TDM Mode description is in datasheet in section 9.3.1.4. This describes that the TDM mode is automatically selected when TDM clock are present. Please read through this to understand your clocking needs. From your question in the original post, I believe you should be able to get audio in all four channels utilizing TDM4.
Best regards,
Shawn Zheng

0 user5842894 over 5 years ago in reply to Shawn Zheng

Prodigy 60 points

Thank you for your reply,
but the first problem one hasn't been resolved.
The follow register config information is set by me.

W D4 00 80 ;
W D4 21 80 ;
W D4 03 44 ;
W D4 04 00
R D4 04 55 ;

By the way ， I'm a HW engineer, I just want it to make a sound.
Would you tell me where the fault in my code;
thank you .

0 Gregg Scott over 5 years ago in reply to user5842894

TI__Mastermind 34305 points

Hi,

Please provide the clock frequencies used for MCLK, SCLK, and FSYNC.

0 user5842894 over 5 years ago in reply to Gregg Scott

Prodigy 60 points

input rate SAMPLING RATE ：48KHZ

0 Gregg Scott over 5 years ago in reply to user5842894

TI__Mastermind 34305 points

The information that you gave is not enough to provide you the correct configuration. Please provide the frequency of the MCLK, SCLK, and FSYNC clocks for your TDM configuration.

0 user5842894 over 5 years ago in reply to Gregg Scott

Prodigy 60 points

MCLK 12.288MHZ
SCLK 12.288MHZ
FSYNC 48KHZ
SCLK and MCLK are connected together in TDM mode. TDM8

0 Gregg Scott over 5 years ago in reply to user5842894

TI__Mastermind 34305 points

Hi,

The clocks look good and the register setting are correct per your description. Now, I have more questions and requests.

Do you have a speaker load on the output of the amplifier?
Please read the DC Diagnostics report registers: 0x0D and 0x0D
Please read the fault and warning registers: Registers 0x10, 0x11, 0x12, and 0x13.

0 user5842894 over 5 years ago in reply to Gregg Scott

Prodigy 60 points

1. Yes, 4ohm;
2.R 0X0C 0X00;
R 0X0D 0X00;

3. All of the registers you point to are 0X00;

0 Dylan Yao over 5 years ago in reply to user5842894

TI__Genius 9140 points

There is no problem about the code you posted ealier and these register values. Would you also check channel status register 0x0F?

For easiler analysis, i would propose you to read back all the register value from 0x00 to 0x13.

0 user5842894 over 5 years ago in reply to Dylan Yao

Prodigy 60 points

thank you for your reply
this problem has been solved.thanks.

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TAS6424L-Q1: How do i config the register