DIT4192: How to update channel status buffer

Sadanori Kato

Part Number: DIT4192

Hi,

According to DIT4192 data sheet, the flowchart for updating the channel status buffer is mentioned as follows.
Unfortunately, the UA to TA buffer transfer cannot be completed with consumer mode even if it is executed according to the following procedure.
So, could you please provide me the sample source code for the UA to TA buffer transfer procedure in detail?

Best regards,
Kato

over 3 years ago

0 Zak Kaye over 3 years ago

TI__Mastermind 23050 points

Hi Kato-san,

I'm not aware of any issues with the channel status update procedure. Have you verified that the SPI transactions are being received properly? i.e. can you write and readback registers correctly?

Best,

Zak

0 Sadanori Kato over 3 years ago in reply to Zak Kaye

Guru 36510 points

Hi Zak-san,

Sorry for the delayed response.

Yes, our customer can write and readback the registers correctly.

Best regards,
Kato

0 Sadanori Kato over 3 years ago in reply to Sadanori Kato

Guru 36510 points

Hi Zak-san,

Is there a timing constraint to output the audio data after updating the UA buffer and setting 0 to BTD?

Best regards,
Kato

0 Zak Kaye over 3 years ago in reply to Sadanori Kato

TI__Mastermind 23050 points

Hi Kato-san,

We do not specify any timing constraints but I would suggest trying the procedure with a few ms delay between writing the registers setting BTD to 0. Are they checking the INTand reading the BTI to confirm the transfer has occurred or is the INT masked?

Best,

Zak

0 Sadanori Kato over 3 years ago in reply to Zak Kaye

Guru 36510 points

Hi Zak-san,

Thank you for your response.

I would recommend our customer to check whether /INT is set to "low" and whether BTI bit is set to "high".

Best regards,
Kato

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DIT4192: How to update channel status buffer