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TLV320DAC3100-Q1: I2C write command

Shinji Tsuji
Genius 15394 points

Part Number: TLV320DAC3100-Q1

Hi team,

I would like to reduce communication commands between MCU and TLV320DAC3100-Q1.

Besides auto increment feature, is there any way to skip duplicated command such like sending the device address every time?

For example, generally it is recommended to send command as below.

Device address(WR) + Register Address A + Data A + Device Address(WR) + Register Address B + Data B + .....

This can be optimized if Register Address A and B is incremental as below.

Device Address(WR) + Register Address A + Data A + Data B + Data C....

If the order of the Register Address is not incremental, is that possible to send like below?

Device Address(WR) + Register Address A + Data A + Register Address C + Data C.....

Or you need to insert "Device Address(WR)" every time before you send the Register Address as below?

Device Address(WR) + Register Address A + Data A + Device Address(WR) + Register Address C + Data C....

Regards,

  • 0
    TI__Guru* 84915 points

    Hi, Shinji,

    The TLV320DAC3100-Q1 only accepts two I2C data formats, you actually mentioned them:

    1) Device address(WR) + Register Address A + Data A + Device Address(WR) + Register Address B + Data B + .....

    2) Device Address(WR) + Register Address A + Data A + Data B + Data C....

    The remaining formats are not supported.

    Please let me know if you have additional questions or comments on this.

    Best regards,
    Luis Fernando Rodríguez S.