TAS2563: PPC3 output with MCU

Edwin Reich

Part Number: TAS2563

I am developing using an MCU and the TAS2563.

I can communicate with the TAS2563 over i2c without any issues. I am able to get output from the speakers when I hardwire my MCU code to the configuration below, although it isn't tuned correctly and sounds terrible:

{ 0x00, 0x00 ), // PAGE 0

{ 0x7f, 0x00 }, // Book 0

{ 0x02, 0x0c }, // POWER_CTL, activate

{ 0x03, 0x02 }, // PB_CFG1, 8.5db

{ 0x07, 0x02 }, // TDM_CFG1, start of frame to time slot 0 offset

{ 0x08, 0x70 }, // TDM_CFG2, 16-bits, stereo downmix (L+R)/2

When I use the output from PPC3 generated by our audio engineer, there isn't any sound. Can you provide documentation for what registers I am expected to initialize independently of the PPC3 configuration? Or, is the PPC3 configuration supposed to handle everything and the audio engineer needs to make some additional changes?

over 2 years ago

0 Arthur Brown over 2 years ago

TI__Mastermind 21055 points

Hi Edwin,

the best resource will be the end-system-integration guide. https://www.ti.com/lit/an/slaa954/slaa954.pdf?ts=1695674369047&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTAS2563

have you been able to review this document?

Regards,
Arthur

0 Edwin Reich over 2 years ago in reply to Arthur Brown

Prodigy 90 points

Section 2.2 of this document reads:

All of the tuning, configuration, and characteristic data are stored in the binary file with extension .bin (e.g. TAS2563_demo.bin). The binary file will be used by the driver to initialize the speaker.

I am developing on an MCU without any TI supplied driver.

Section 3 of this document reads:

Example device driver code is available with TI.

I have not been able to locate an example device driver on the TI site. Can you please provide this example device driver?

0 Arthur Brown over 2 years ago in reply to Edwin Reich

TI__Mastermind 21055 points

Hi Edwin,

the available drivers are TAS2563 are listed on the devices product page

If this driver is not suitable to the MCU you are using then you can instead adapt one of the PPC3 generated .cfg files.

After exporting the cfg/.h files from end system integration you can use the "combined_..." configuration in the debug_cfg directory.

the combined configurations will include all necessary writes to initialize the device. you can use this and adapt it into your initialization script

Regards,
Arthur

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TAS2563: PPC3 output with MCU