CCS/TAS5754M: Failure written EQ data into DSP

Bruce Luk

Part Number: TAS5754M

Tool/software: Code Composer Studio

Hi,

We implemented Tas5754 into a stereo system on our project, after verified the EQ data on EVM then the header file was exported. We found page0 register 02 must set to 0x10(disabled DAC) otherwise those data would never written into the DSP. Pls advise whether the the Dac must be disabled before activated updated data.

Pls found below the inti data,

cfg_reg registers[] = {
//// Dump of TAS5754/6M for DirectI2CTab->RegisterDump

////standby

{ 0x00, 0x00 },
{ 0x02, 0x10 },
//// reg[1][3] = 0x04

{ 0x00, 0x01 },
{ 0x03, 0x04 },
//// reg[0][0x3] = 0x11

{ 0x00, 0x00 },
{ 0x03, 0x11 },
//// Coefficient Memory A

//// page 44 (0x2C)

{ 0x00, 0x2c },
{ 0x08, 0x7f },
{ 0x09, 0xff },
{ 0x0a, 0xff },
{ 0x0b, 0x00 },
{ 0x0c, 0xff },
{ 0x0d, 0xff },
{ 0x0e, 0xff },
{ 0x0f, 0x00 },

Best regards,
Bruce

over 4 years ago

0 Alix Wan over 4 years ago

TI__Genius 9995 points

Hi Bruce,

Did you use the header file dumped from PPC2?

Further, have you enable I2S clocks when I2C initialization?

BR,

Alix Wan.

0 Bruce Luk over 4 years ago in reply to Alix Wan

Prodigy 75 points

Hi Alix,

We do dumped the header file from PPC2 and enable the I2S clocks, my problem is if the register02 on page0 was not set to 0x10, those data failure to init into the DSP, we hv clarified on our system, would you pls verified this issue. And pls explain below capture from datasheet about the adaptive mode on register page44 in which had mentioned about the serial transfer once dac disabled.

0 Sam(MPAA) Zhang over 4 years ago in reply to Bruce Luk

TI__Mastermind 19080 points

Hi Bruce,

By default after power up, the device is in non-adaptive mode. This means users need to set the DAC to standby/power down mode to get access to the CRAMs.

This design is mainly for avoiding abnormal DAC output when updating the parameters in DSP.

Thanks!

Regards,

Sam

0 Bruce Luk over 4 years ago in reply to Sam(MPAA) Zhang

Prodigy 75 points

Hi Sam,

Pls advise how to setting bass/treble parameters without putting the Dac to standby.

Bruce

0 Sam(MPAA) Zhang over 4 years ago in reply to Bruce Luk

TI__Mastermind 19080 points

Hi Bruce,

I can provide you a guidance on that. You may leave your email address so I can send it to you.

Or, I've requested friendship to you. Please share your email via private message.

Thanks!

Regards,

Sam

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CCS/TAS5754M: Failure written EQ data into DSP